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• top tweets WebLogic Partner Community – June 2012

  - by JuergenKress

  Send your tweets @wlscommunity #WebLogicCommunity and follow us at http://twitter.com/wlscommunity OTNArchBeat? Free Virtual Developer Day: Oracle ADF and Oracle Fusion Middleware Development http://bit.ly/MxuNAg AMIS, Oracle & Java? Checklist veearts nu ook op iPad. @amis_services Mobile integratie met Oracle Fusion Middleware http://dld.bz/buwsM #OSB #SOA WhitehorsesWhiteblog: Troubleshoot JVM crashes of Weblogic: CompilerThread (http://bit.ly/KcGzZK) Jon petter hjulstad E-vita is now Apps Grid Specialized! ODTUG Fusion Middleware Sessions RT @OTNArchBeat: ODTUG Kscope12 - June 24-28 - San Antonio, TX http://bit.ly/LlWkNV OTNArchBeat? Free Event: Modern #Java Development, in/outside the Enterprise - May 30 - Redwood Shores, CA http://bit.ly/LfB79a ADF Community DE? Oracle Advanced ADF 11g Partner Workshop Düsseldorf /Germany (english) June 26-29, click here to see Nicolas Lorain? Best Practices for #JavaFX 2 Enterprise Applications (Part Two) http://buff.ly/Lk1DBn by Jim Weaver shay shmeltzer? #Oracle Developers in #Israel - don't miss the free #ADF workshop July 2nd - get hands-on with Oracle ADF -here OTNArchBeat? Java at JAXconf | Tori Wieldt http://bit.ly/LdoLS2 Anand Akela? #Oracle Customers and Partners – Get your free pass to @CloudExpo in New York, June 11 to 14, http://goo.gl/RpYFT <- Stop by booth #511 OracleSupport_WLS? Did you know that since 3/15/12 #WebLogic Server 12.1.1.0 is certified for production with JDK 7? http://bit.ly/IYJE0L Sharat? Highly useful #JavaFX best practices blog by @JavaFXpert More details here ADF EMG How to set up a productive ADF Dev Env - discussion started by @baigsorcl. Click here to Read and comment. OracleSupport_WLS Upcoming #webcast: Diagnosing #weblogic performance issues through #java thread dumps http://bit.ly/M4O9qF My Oracle Support? New to Oracle Support? - Webcast on Support Basics webcast May 22 10:30 Central Europe. Register @ http://bit.ly/J8o0WG Mohamad Afshar? Cloud Expo – Oracle Customers and Partners – get your free pass to Cloud Expo in New York, June 11 to 14, http://goo.gl/RpYFT OTNArchBeat Oracle VM 3.1 is here | @Ronenkofman http://bit.ly/JriWTq Oracle Exalogic? RT @D0uglasPhillips: ExalogicTV New Video Introducing Oracle Secure Global Desktop for #Exalogic!! http://bit.ly/nwkrCu OracleBlogs? Java EE6 and WebLogic YouTube video channels http://ow.ly/1jVcYJ Oracle WebLogic RT @aleftik: Excited to spend some time today playing around with the WebSockets SDK http://bit.ly/NoTtri WebLogic Community Java EE6 and WebLogic YouTube video channels http://wp.me/p1LMIb-h0 OracleSupport_WLS New tutorial! How to use the #JMS #API to create a message producer with #GlassFish and #NetBeans http://bit.ly/Juqjn JDeveloper & ADF? Tip when installing JDeveloper 11.1.2.2.0 version http://dlvr.it/1b48s1 WebLogic Community Middleware Oracle Excellence Awards 2012 – HAPPY NEW YEAR! Click here to read WebLogicCommunity #opn #oracle#Specialization #opnaward Steven Davelaar? Improve performance of your ADF app using lazy, on-demand querying of detail view objects: Click here OracleBlogs? Middleware Oracle Excellence Awards 2012 & HAPPY NEW YEAR! http://ow.ly/1kahzZ OracleSupport_WLS Upgrading from #weblogic 9.2.x to 10.3.x? http://bit.ly/Kqzl9N AMIS, Oracle & Java “@JDeveloper: Logout from an ADF application http://dlvr.it/1fQBnm” WebLogic Community UK OUG call for papers–your middleware success! Click here #UKOUG #soacommunity #OPN Whitehorses Whiteblog: Enterprise Manager: Manage your Fusion Middleware logfiles (http://bit.ly/KQlZkR) WebLogic Community? @Jphjulstad HI Jon, should we send Pizza when you go in production with your WebLogic 12c project? Whish you success! #WebLogicCommunity Sabine Leitner ADF Einsteigerworkshops je 2 Tage im Juni in HAM, BLN, HANN #Oracle #WLS http://bit.ly/LcOIzB @OracleWebLogic @OracleAppGrid@soacommunity Andreas Koop new post Java Heap Monitor in JDeveloper http://bit.ly/LgSk85 Sabine Leitner? #Oracle Kundentag mit Vorträgen von Sparkasse, Schufa, LBBW, Allianz über FMW & Exa Lösungen! 21.06. FRA http://bit.ly/JtwE3v @wlscommunity NetBeans Team RT @chadlung: Installing and configuring #NetBeans 7.1.2 and the #Java JDK 1.7 on OS X: http://www.giantflyingsaucer.com/blog/p=3760 #osx WebLogic Community Happy New Year #WeblogicCommunity thanks for the business! Time for a drink http://pic.twitter.com/K34KFbvH WebLogic Community UK OUG call for papers&ndash;your middleware success! http://wp.me/p1LMIb-gU WebLogic Community? Middleware Oracle Excellence Awards 2012 - HAPPY NEW YEAR! http://wp.me/p1LMIb-h6 Oracle WebLogic? RT @wlscommunity: WebLogic World Record Two Processor Result with SPECjEnterprise2010 Benchmark Click here to read #weblogic #sunfire #li Marc? Relocate wlst script for all the logfiles in your domain @wlscommunity, http://tinyurl.com/btbjcco WebLogic Community WebLogic World Record Two Processor Result with SPECjEnterprise2010 Benchmark Click here #WebLogicCommunity #weblogic #sunfire Oracle WebLogic MIss a WebLogic Devcast webinar? Catch any of the replays in the series on-demand! #WebLogic #JavaEE #coherence http://bit.ly/LNGa4p JDeveloper & ADF? Bean DataControl - Edit table records http://dlvr.it/1ZWqCx Justin Kestelyn? Contents of "Virtual Developer Day: Java SE 7 and JavaFX 2.0" are now avail on demand; no reg http://tinyurl.com/78nxnyo Frank Nimphius? Preparing 12c new features for DOAG 2012 Development - June 14th in Bonn (http://development.doag.org) WebLogic Community? Middleware Oracle Excellence Awards 2012&ndash;HAPPY NEW YEAR! http://wp.me/p1LMIb-he JDeveloper & ADF Placeholder Watermarks with ADF 11.1.2 http://dlvr.it/1ZWDc9 Oracle ACE Program? May edition #ACE newsletter now available online. http://bit.ly/LKA2de chriscmuir New blog post: Which JDeveloper is right for me? http://bit.ly/J8sj9e GlassFish? Transactional Interceptors in Java EE 7 - Request for feedback: Linda described how EJB's container-managed tr http://bit.ly/KKuGNJ OracleEnterpriseMgr Oracle Application Testing Suite 12.1 Debuts at StarEast 2012 http://ow.ly/aXcv8 #em12c JAX London First set of speaker session announced for #JAXLondon see: http://bit.ly/L0HSME OTNArchBeat? Oracle Cloud Conference: dates and locations worldwide http://bit.ly/JgNeID NetBeans Team? Video: Create and debug a TestNG test class in #NetBeans IDE: http://ow.ly/b7NEW NetBeans Team #NetBeans tip: Code Template for #Kohana #PHP Framework: http://ow.ly/aWIvY Robin? Started to use the #Oracle #WebLogic Server #Maven Plugin. Really awesome to install a complete #WLS with "mvn wls:install" !@wlscommunity OTNArchBeat? Free Event: Modern #Java Development, in/outside the Enterprise - May 30 - Redwood Shores, CA http://bit.ly/JIN9tf OracleBlogs WebLogic Partner Community Newsletter May 2012 http://ow.ly/1k5TeG Java Certification? Java SE 7 Fundamentals course now available On Demand. Watch a preview now: http://ow.ly/aWYgD Whitehorses Whiteblog: Native IO in WebLogic on Solaris 11 X64 (http://bit.ly/KGM4mp) NetBeans Team? Quick video of FindBugs Integration in #NetBeans IDE 7.2: http://ow.ly/aNece NetBeans Team #JavaFX Scene Builder Docs Updated for 2.2 and #NetBeans 7.2 dev builds: http://ow.ly/b7Nie Duncan Mills? New blog posting on implementing input field watermarks with ADF Faces 11.1.2 Click here #adf WebLogic Community? WebLogic Partner Community Newsletter May 2012 http://wp.me/p1LMIb-h4 OracleBlogs? UK OUG call for papersyour middleware success! http://ow.ly/1jNs49 Nicolas Lorain? Java tip: Deploying #JavaFX apps to multiple environments - JavaWorld http://buff.ly/KDADvu Adam Bien? Java EE and How to Specify The Unconventional With Convention Over Configuration [Free Article]: The free http://bit.ly/JEUkUf Owen Hughes and team?#Oracle #Exalogic #Performance: What? How? Why? Click here GlassFish? SecuritEE in the Cloud: Java EE 7 and the Cloud theme continue to move full steam ahead. In a PaaS environment http://bit.ly/K2RPte JDeveloper & ADF? How to Align Managed Bean Scope and Bean Data Control in Oracle ADF http://dlvr.it/1dngxQ Andrejus Baranovskis Missing New Feature in JDev (11.1.2.2.0) - ADF Methods Security http://fb.me/1jQM1enls OracleSupport_WLS? Tutorial on managing #HTTP Sessions in a #Weblogic #Cluster http://bit.ly/JshESe Oracle WebLogic? ZeroTurnaround developer report: #Spring keeps getting heavier, and #Java EE keeps getting lighter http://bit.ly/JDmKy2 JDeveloper & ADF? How to Search in Views - Part 4 || Oracle ADF http://dlvr.it/1dpDjZ WebLogic Community Java Message Service with Java and Spring Framework on Oracle WebLogic; Webcast May 15th 2012 http://wp.me/p1LMIb-gS Andreas Koop? new post ADF Bug or Feature? Non-Breaking Space outside required icon style http://bit.ly/KDZnUo Oracle WebLogic? Don't miss this month's WebLogic DevCast: WebLogic JMS and Spring JMS http://bit.ly/J6g2ST Tuesday May 15th 10:00am PT JDeveloper & ADF How To Disable SELECT COUNT Execution for ADF Table Rendering http://dlvr.it/1dqKH6 OracleSupport_WLS? #SSL and security has its own Information Center, http://bit.ly/LP8Vil for troubleshooting, install, config and more NetBeans Team? Featured #NetBeans plugin is @Codename_One for creating native apps for major mobile platforms: http://plugins.netbeans.org/ JDeveloper & ADF? Using JDeveloper HTTP Analyser to intercept/forward requests http://dlvr.it/1Yzl4J Nicolas Lorain? Create native looks for JavaFX applications: JavaFX-CSS-Themes · http://buff.ly/M0jel0 by Gregg Setzer Devoxx? Want to make the world a better place? Then get involved in Random Hacks of Kindness on June 2 - 3 in Belgium @ http://www.rhok.be #RHoK WebLogic Community top tweets WebLogic Partner Community – May 2012 Click here #WebLogicCommunity Michel Schildmeijer Oracle Traffic Director 11g http://lnkd.in/-mm3Vy Andrejus Baranovskis? Proactively Monitoring JDeveloper 11g IDE Heap Memory http://fb.me/16YZErPrx Arun Gupta? 80+ attendees building a #javaee6 application using NetBeans/WebLogic at Java Day, Istanbul fun times! http://pic.twitter.com/odY19daW A. Chatziantoniou? Just registered for the Oracle FMW Summer Camp in Lisbon. Looking forward to learn, meet friends and try to buy ice cream on the beach OTNArchBeat Another Myth Debunked: 200 Continuous Redeployments with WebLogic|@munz http://bit.ly/JiPyM7 Oracle WebLogic? Need to learn more on #WebLogic Server #JVM performance tuning? http://bit.ly/MN UxHx GlassFish? Dukes Choice Awards 2012 Nominations Are Open: 2012 Duke's Choice Award are open for nominations. These awards http://bit.ly/Ksk4U3 Justin Kestelyn? Major cloud-related announcements from Larry Ellison and Mark Hurd on June 6 http://bit.ly/KTJiII Nicolas Lorain Transparent Windows (Stage) with #JavaFX 2 : Adam Bien's Weblog http://j.mp/INgq8K WebLogic Community Web Services with JAX and Spring on WebLogic–Webcast May 30th 2012 #WebLogicCommunity #weblogic #opn JDeveloper & ADF Oracle ADF - How to work with Dates http://dlvr.it/1Y70zw OracleBlogs Web Services with JAX and Spring on WebLogicWebcast May 30th 2012 http://ow.ly/1k2WtO Adam Bien? Summer Java EE Workshops: 23.05, Amsterdam Airport Java EE Hacking, Without Airport. The dutch version of Airport http://bit.ly/JeP6hV JDeveloper & ADF ADF 11g: BC4J or EJB3. http://bit.ly/JVVFZF ADF EMG? Great discussion with JSF guru Andy Schwartz on the forum - 38 posts! Check it out: here Devoxx? Oracle (http://www.oracle.com ) joins Devoxx 2012 as the first Premium partner, welcome aboard! Nicolas Lorain Developing a Simple Todo Application using #JavaFX, #Java and #MongoDB- Part-1JavaBeat http://j.mp/IDGxLA Nicolas Lorain Preview of JavaFX 2.2 canvas feature > Harmonic Code: Death bitmaps could be beautiful... Part I http://buff.ly/KyAXg5 #JavaFX OTNArchBeat?? New York Coherence Special Interest Group (NYCSIG) - May 24 - NYC http://bit.ly/JzJcbT WebLogic Community iAS upgrade to WebLogic watch #C2B2 online seminar http://youtu.be/5m2CNUjBIGQ #WebLogicCommunity Ruth Collett? Join Oracle in #Joburg on May 21 for OTN Developer Day - sessions on #Java #JavaEE 6/7 and much more! http://bit.ly/IENwnD WebLogic Community? Sending out invitations to our advanced Fusion Middleware Summer Camps! Want to learn more register for the community Ruth Collett? Join @ArunGupta in Istanbul this Monday to hear the latest on #JavaEE 6/7 http://bit.ly/Je63cc GlassFish? NetBeans 7.2 Beta - Built for Speed, Deploy Apps to Oracle Cloud: NetBeans 7.2 Beta is now available. The http://bit.ly/LxMMTK Lucas Jellema My latest SlideShare upload : Java ain't scary - introducing Java to PL/SQ. here via @slideshare JDeveloper & ADF? #Developer #free#ADF training in #Scotland - June 13. More information: http://bit.ly/LbPLlf AMIS, Oracle & Java? AMIS behaalt als eerste in Nedeland de Oracle ADF specialisatie - Channelworld nieuwsChannelconnect: http://bit.ly/JzAcB4 WebLogic Community Web Services with JAX and Spring on WebLogic&ndash;Webcast May 30th 2012 http://wp.me/p1LMIb-gX Nicolas Lorain?@ JavaFX-based SimpleDateFormat Demonstrator http://j.mp/KFCVOi #JavaFX via Dustin Marx Oracle Exalogic? Are you an Oracle partner? There's news on the Oracle Partner Network about #Exalogic specializations - http://bit.ly/Mt3ANY JDeveloper & ADF Shorter URL for your ADF application http://dlvr.it/1XqNLY OTNArchBeat? Bay Area Coherence Special Interest Group (BACSIG) Meeting June 7 http://bit.ly/JAa0Lx OTNArchBeat? Java EE 6 Sample Application on WebLogic 12c: Conference Planner | @arungupta http://bit.ly/LPvof4 JDeveloper & ADF? Excellent example of Oracle ADF - Google Maps/Earth integration http://dlvr.it/1cbc80 JDeveloper & ADF Setting Up JDeveloper's Embedded WLS for MySQL http://dlvr.it/1c4b8P JDeveloper & ADF? Solution for Sharing Global User Data in ADF BC http://dlvr.it/1cc7SJ Java? Java Magazine May/June #javaee #javafx #javame #openJDK #hotspot #wicket #lotsmore http://ow.ly/aX07v Oracle WebLogic? http://bit.ly/JxQsnS if you have trouble finding the right #patchset when doing an upgrade to your #weblogic server OracleEnterpriseMgr 15 minutes to go before we start our Application Testing Suite 12.1 webcast. http://bit.ly/JHyTEe Learn from the lead PM what's new. #em12c Sten Vesterli Eating your own dog food - Oracle support site finally in ADF: http://lnkd.in/s6hg_p Adam Bien Project: "Jenever" (=poison) checked-in with GIT:here CU at http://workshops.adam-bien.com. Thanks for attending! OTNArchBeat Web Service Development with NetBeans and Testing with WebLogic Admin Console | @munz http://bit.ly/JcWk34 Please feel free to send us your news! And add your blog to our SOA blog wiki

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• Simplex Noise Help

  - by Alex Larsen

  Im Making A Minecraft Like Gae In XNA C# And I Need To Generate Land With Caves This Is The Code For Simplex I Have /// <summary> /// 1D simplex noise /// </summary> /// <param name="x"></param> /// <returns></returns> public static float Generate(float x) { int i0 = FastFloor(x); int i1 = i0 + 1; float x0 = x - i0; float x1 = x0 - 1.0f; float n0, n1; float t0 = 1.0f - x0 * x0; t0 *= t0; n0 = t0 * t0 * grad(perm[i0 & 0xff], x0); float t1 = 1.0f - x1 * x1; t1 *= t1; n1 = t1 * t1 * grad(perm[i1 & 0xff], x1); // The maximum value of this noise is 8*(3/4)^4 = 2.53125 // A factor of 0.395 scales to fit exactly within [-1,1] return 0.395f * (n0 + n1); } /// <summary> /// 2D simplex noise /// </summary> /// <param name="x"></param> /// <param name="y"></param> /// <returns></returns> public static float Generate(float x, float y) { const float F2 = 0.366025403f; // F2 = 0.5*(sqrt(3.0)-1.0) const float G2 = 0.211324865f; // G2 = (3.0-Math.sqrt(3.0))/6.0 float n0, n1, n2; // Noise contributions from the three corners // Skew the input space to determine which simplex cell we're in float s = (x + y) * F2; // Hairy factor for 2D float xs = x + s; float ys = y + s; int i = FastFloor(xs); int j = FastFloor(ys); float t = (float)(i + j) * G2; float X0 = i - t; // Unskew the cell origin back to (x,y) space float Y0 = j - t; float x0 = x - X0; // The x,y distances from the cell origin float y0 = y - Y0; // For the 2D case, the simplex shape is an equilateral triangle. // Determine which simplex we are in. int i1, j1; // Offsets for second (middle) corner of simplex in (i,j) coords if (x0 > y0) { i1 = 1; j1 = 0; } // lower triangle, XY order: (0,0)->(1,0)->(1,1) else { i1 = 0; j1 = 1; } // upper triangle, YX order: (0,0)->(0,1)->(1,1) // A step of (1,0) in (i,j) means a step of (1-c,-c) in (x,y), and // a step of (0,1) in (i,j) means a step of (-c,1-c) in (x,y), where // c = (3-sqrt(3))/6 float x1 = x0 - i1 + G2; // Offsets for middle corner in (x,y) unskewed coords float y1 = y0 - j1 + G2; float x2 = x0 - 1.0f + 2.0f * G2; // Offsets for last corner in (x,y) unskewed coords float y2 = y0 - 1.0f + 2.0f * G2; // Wrap the integer indices at 256, to avoid indexing perm[] out of bounds int ii = i % 256; int jj = j % 256; // Calculate the contribution from the three corners float t0 = 0.5f - x0 * x0 - y0 * y0; if (t0 < 0.0f) n0 = 0.0f; else { t0 *= t0; n0 = t0 * t0 * grad(perm[ii + perm[jj]], x0, y0); } float t1 = 0.5f - x1 * x1 - y1 * y1; if (t1 < 0.0f) n1 = 0.0f; else { t1 *= t1; n1 = t1 * t1 * grad(perm[ii + i1 + perm[jj + j1]], x1, y1); } float t2 = 0.5f - x2 * x2 - y2 * y2; if (t2 < 0.0f) n2 = 0.0f; else { t2 *= t2; n2 = t2 * t2 * grad(perm[ii + 1 + perm[jj + 1]], x2, y2); } // Add contributions from each corner to get the final noise value. // The result is scaled to return values in the interval [-1,1]. return 40.0f * (n0 + n1 + n2); // TODO: The scale factor is preliminary! } public static float Generate(float x, float y, float z) { // Simple skewing factors for the 3D case const float F3 = 0.333333333f; const float G3 = 0.166666667f; float n0, n1, n2, n3; // Noise contributions from the four corners // Skew the input space to determine which simplex cell we're in float s = (x + y + z) * F3; // Very nice and simple skew factor for 3D float xs = x + s; float ys = y + s; float zs = z + s; int i = FastFloor(xs); int j = FastFloor(ys); int k = FastFloor(zs); float t = (float)(i + j + k) * G3; float X0 = i - t; // Unskew the cell origin back to (x,y,z) space float Y0 = j - t; float Z0 = k - t; float x0 = x - X0; // The x,y,z distances from the cell origin float y0 = y - Y0; float z0 = z - Z0; // For the 3D case, the simplex shape is a slightly irregular tetrahedron. // Determine which simplex we are in. int i1, j1, k1; // Offsets for second corner of simplex in (i,j,k) coords int i2, j2, k2; // Offsets for third corner of simplex in (i,j,k) coords /* This code would benefit from a backport from the GLSL version! */ if (x0 >= y0) { if (y0 >= z0) { i1 = 1; j1 = 0; k1 = 0; i2 = 1; j2 = 1; k2 = 0; } // X Y Z order else if (x0 >= z0) { i1 = 1; j1 = 0; k1 = 0; i2 = 1; j2 = 0; k2 = 1; } // X Z Y order else { i1 = 0; j1 = 0; k1 = 1; i2 = 1; j2 = 0; k2 = 1; } // Z X Y order } else { // x0<y0 if (y0 < z0) { i1 = 0; j1 = 0; k1 = 1; i2 = 0; j2 = 1; k2 = 1; } // Z Y X order else if (x0 < z0) { i1 = 0; j1 = 1; k1 = 0; i2 = 0; j2 = 1; k2 = 1; } // Y Z X order else { i1 = 0; j1 = 1; k1 = 0; i2 = 1; j2 = 1; k2 = 0; } // Y X Z order } // A step of (1,0,0) in (i,j,k) means a step of (1-c,-c,-c) in (x,y,z), // a step of (0,1,0) in (i,j,k) means a step of (-c,1-c,-c) in (x,y,z), and // a step of (0,0,1) in (i,j,k) means a step of (-c,-c,1-c) in (x,y,z), where // c = 1/6. float x1 = x0 - i1 + G3; // Offsets for second corner in (x,y,z) coords float y1 = y0 - j1 + G3; float z1 = z0 - k1 + G3; float x2 = x0 - i2 + 2.0f * G3; // Offsets for third corner in (x,y,z) coords float y2 = y0 - j2 + 2.0f * G3; float z2 = z0 - k2 + 2.0f * G3; float x3 = x0 - 1.0f + 3.0f * G3; // Offsets for last corner in (x,y,z) coords float y3 = y0 - 1.0f + 3.0f * G3; float z3 = z0 - 1.0f + 3.0f * G3; // Wrap the integer indices at 256, to avoid indexing perm[] out of bounds int ii = i % 256; int jj = j % 256; int kk = k % 256; // Calculate the contribution from the four corners float t0 = 0.6f - x0 * x0 - y0 * y0 - z0 * z0; if (t0 < 0.0f) n0 = 0.0f; else { t0 *= t0; n0 = t0 * t0 * grad(perm[ii + perm[jj + perm[kk]]], x0, y0, z0); } float t1 = 0.6f - x1 * x1 - y1 * y1 - z1 * z1; if (t1 < 0.0f) n1 = 0.0f; else { t1 *= t1; n1 = t1 * t1 * grad(perm[ii + i1 + perm[jj + j1 + perm[kk + k1]]], x1, y1, z1); } float t2 = 0.6f - x2 * x2 - y2 * y2 - z2 * z2; if (t2 < 0.0f) n2 = 0.0f; else { t2 *= t2; n2 = t2 * t2 * grad(perm[ii + i2 + perm[jj + j2 + perm[kk + k2]]], x2, y2, z2); } float t3 = 0.6f - x3 * x3 - y3 * y3 - z3 * z3; if (t3 < 0.0f) n3 = 0.0f; else { t3 *= t3; n3 = t3 * t3 * grad(perm[ii + 1 + perm[jj + 1 + perm[kk + 1]]], x3, y3, z3); } // Add contributions from each corner to get the final noise value. // The result is scaled to stay just inside [-1,1] return 32.0f * (n0 + n1 + n2 + n3); // TODO: The scale factor is preliminary! } private static byte[] perm = new byte[512] { 151,160,137,91,90,15, 131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,8,99,37,240,21,10,23, 190, 6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,35,11,32,57,177,33, 88,237,149,56,87,174,20,125,136,171,168, 68,175,74,165,71,134,139,48,27,166, 77,146,158,231,83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244, 102,143,54, 65,25,63,161, 1,216,80,73,209,76,132,187,208, 89,18,169,200,196, 135,130,116,188,159,86,164,100,109,198,173,186, 3,64,52,217,226,250,124,123, 5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,189,28,42, 223,183,170,213,119,248,152, 2,44,154,163, 70,221,153,101,155,167, 43,172,9, 129,22,39,253, 19,98,108,110,79,113,224,232,178,185, 112,104,218,246,97,228, 251,34,242,193,238,210,144,12,191,179,162,241, 81,51,145,235,249,14,239,107, 49,192,214, 31,181,199,106,157,184, 84,204,176,115,121,50,45,127, 4,150,254, 138,236,205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180, 151,160,137,91,90,15, 131,13,201,95,96,53,194,233,7,225,140,36,103,30,69,142,8,99,37,240,21,10,23, 190, 6,148,247,120,234,75,0,26,197,62,94,252,219,203,117,35,11,32,57,177,33, 88,237,149,56,87,174,20,125,136,171,168, 68,175,74,165,71,134,139,48,27,166, 77,146,158,231,83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244, 102,143,54, 65,25,63,161, 1,216,80,73,209,76,132,187,208, 89,18,169,200,196, 135,130,116,188,159,86,164,100,109,198,173,186, 3,64,52,217,226,250,124,123, 5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,58,17,182,189,28,42, 223,183,170,213,119,248,152, 2,44,154,163, 70,221,153,101,155,167, 43,172,9, 129,22,39,253, 19,98,108,110,79,113,224,232,178,185, 112,104,218,246,97,228, 251,34,242,193,238,210,144,12,191,179,162,241, 81,51,145,235,249,14,239,107, 49,192,214, 31,181,199,106,157,184, 84,204,176,115,121,50,45,127, 4,150,254, 138,236,205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180 }; private static int FastFloor(float x) { return (x > 0) ? ((int)x) : (((int)x) - 1); } private static float grad(int hash, float x) { int h = hash & 15; float grad = 1.0f + (h & 7); // Gradient value 1.0, 2.0, ..., 8.0 if ((h & 8) != 0) grad = -grad; // Set a random sign for the gradient return (grad * x); // Multiply the gradient with the distance } private static float grad(int hash, float x, float y) { int h = hash & 7; // Convert low 3 bits of hash code float u = h < 4 ? x : y; // into 8 simple gradient directions, float v = h < 4 ? y : x; // and compute the dot product with (x,y). return ((h & 1) != 0 ? -u : u) + ((h & 2) != 0 ? -2.0f * v : 2.0f * v); } private static float grad(int hash, float x, float y, float z) { int h = hash & 15; // Convert low 4 bits of hash code into 12 simple float u = h < 8 ? x : y; // gradient directions, and compute dot product. float v = h < 4 ? y : h == 12 || h == 14 ? x : z; // Fix repeats at h = 12 to 15 return ((h & 1) != 0 ? -u : u) + ((h & 2) != 0 ? -v : v); } private static float grad(int hash, float x, float y, float z, float t) { int h = hash & 31; // Convert low 5 bits of hash code into 32 simple float u = h < 24 ? x : y; // gradient directions, and compute dot product. float v = h < 16 ? y : z; float w = h < 8 ? z : t; return ((h & 1) != 0 ? -u : u) + ((h & 2) != 0 ? -v : v) + ((h & 4) != 0 ? -w : w); } This Is My World Generation Code Block[,] BlocksInMap = new Block[1024, 256]; public bool IsWorldGenerated = false; Random r = new Random(); private void RunThread() { for (int BH = 0; BH <= 256; BH++) { for (int BW = 0; BW <= 1024; BW++) { Block b = new Block(); if (BH >= 192) { } BlocksInMap[BW, BH] = b; } } IsWorldGenerated = true; } public void GenWorld() { new Thread(new ThreadStart(RunThread)).Start(); } And This Is A Example Of How I Set Blocks Block b = new Block(); b.BlockType = = Block.BlockTypes.Air; This Is A Example Of How I Set Models foreach (Block b in MyWorld) { switch(b.BlockType) { case Block.BlockTypes.Dirt: b.Model = DirtModel; break; ect. } } How Would I Use These To Generate To World (The Block Array) And If Possible Thread It More? btw It's 1024 Wide And 256 Tall

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• MINSCN?Cache Fusion Read Consistent

  - by Liu Maclean(???)

  ????? ???Ask Maclean Home ???  RAC ? Past Image PI????, ?????????,???11.2.0.3 2 Node RAC??????????: SQL> select * from v$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- www.oracledatabase12g.com SQL> drop table test purge; Table dropped. SQL> alter system flush buffer_cache; System altered. SQL> create table test(id number); insert into test values(1); insert into test values(2); commit; /* ???? rowid??TEST????2????????? */ select dbms_rowid.rowid_block_number(rowid),dbms_rowid.rowid_relative_fno(rowid) from test; DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) ------------------------------------ ------------------------------------                                89233                                    1                                89233                                    1 SQL> alter system flush buffer_cache; System altered. Instance 1 Session A ??UPDATE??: SQL> update test set id=id+1 where id=1; 1 row updated. Instance 1 Session B ??x$BH buffer header?? ?? ??Buffer??? SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0;      STATE CR_SCN_BAS ---------- ----------          1          0          3    1227595 X$BH ??? STATE????Buffer???, ???????: STATE NUMBER KCBBHFREE 0 buffer free KCBBHEXLCUR 1 buffer current (and if DFS locked X) KCBBHSHRCUR 2 buffer current (and if DFS locked S) KCBBHCR 3 buffer consistant read KCBBHREADING 4 Being read KCBBHMRECOVERY 5 media recovery (current & special) KCBBHIRECOVERY 6 Instance recovery (somewhat special) ????????????? : state =1 Xcurrent ? state=2 Scurrent ? state=3 CR ??? Instance 2  ?? ????????????? ,???? gc current block 2 way  ??Current Block ??? Instance 2, ?? Instance 1 ??”Current Block” Convert ? Past Image: Instance 2 Session C SQL> update test set id=id+1 where id=2; 1 row updated. Instance 2 Session D SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1227641 3 1227638 STATE =1 ?Xcurrent block???? Instance 2 , ??? Instance 1 ??? GC??: Instance 1 Session B SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0;      STATE CR_SCN_BAS ---------- ----------          3    1227641          3    1227638          8          0          3    1227595 ???????, ??????Instance 1??session A????TEST??SELECT??? ,????? 3? State=3?CR ? ??????1?: Instance 1 session A ?????UPDATE? session SQL> alter session set events '10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high'; Session altered. SQL> select * from test;         ID ----------          2          2 select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0;       STATE CR_SCN_BAS ---------- ----------          3    1227716          3    1227713          8          0 ?????????v$BH ????CR????,?????SELECT??? CR????????,???????? ?????????? ??X$BH?????? , ?????CR??SCN Version???: 1227641?1227638?1227595, ?SELECT?????? 2???SCN version?CR? 1227716? 1227713 ???, Oracle????????? ?????????SELECT??????event 10708? rac.*???TRACE,??????TRACE??: PARSING IN CURSOR #140444679938584 len=337 dep=1 uid=0 oct=3 lid=0 tim=1335698913632292 hv=3345277572 ad='bc0e68c8' sqlid='baj7tjm3q9sn4' SELECT /* OPT_DYN_SAMP */ /*+ ALL_ROWS IGNORE_WHERE_CLAUSE NO_PARALLEL(SAMPLESUB) opt_param('parallel_execution_enabled', 'false') NO_PARALLEL_INDEX(SAMPLESUB) NO_SQL_TUNE */ NVL(SUM(C1),0), NVL(SUM(C2),0) FROM (SELECT /*+ NO_PARALLEL("TEST") FULL("TEST") NO_PARALLEL_INDEX("TEST") */ 1 AS C1, 1 AS C2 FROM "SYS"."TEST" "TEST") SAMPLESUB END OF STMT PARSE #140444679938584:c=1000,e=27630,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=1,plh=1950795681,tim=1335698913632252 EXEC #140444679938584:c=0,e=44,p=0,cr=0,cu=0,mis=0,r=0,dep=1,og=1,plh=1950795681,tim=1335698913632390 *** 2012-04-29 07:28:33.632 kclscrs: req=0 block=1/89233 *** 2012-04-29 07:28:33.632 kclscrs: bid=1:3:1:0:7:80:1:0:4:0:0:0:1:2:4:1:26:0:0:0:70:1a:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:3f:0:1c:86:2d:4:0:0:0:0:a2:3c:7c:b:70:1a:0:0:0:0:1:0:7a:f8:76:1d:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:63:e5:0:0:0:0:0:0:10:0:0:0 2012-04-29 07:28:33.632578 : kjbcrc[0x15c91.1 76896.0][9] 2012-04-29 07:28:33.632616 : GSIPC:GMBQ: buff 0xba1e8f90, queue 0xbb79f278, pool 0x60013fa0, freeq 1, nxt 0xbb79f278, prv 0xbb79f278 2012-04-29 07:28:33.632634 : kjbmscrc(0x15c91.1)seq 0x2 reqid=0x1c(shadow 0xb4bb4458,reqid x1c)mas@2(infosz 200)(direct 1) 2012-04-29 07:28:33.632654 : kjbsentscn[0x0.12bbc1][to 2] 2012-04-29 07:28:33.632669 : GSIPC:SENDM: send msg 0xba1e9000 dest x20001 seq 24026 type 32 tkts xff0000 mlen x17001a0 2012-04-29 07:28:33.633385 : GSIPC:KSXPCB: msg 0xba1e9000 status 30, type 32, dest 2, rcvr 1 *** 2012-04-29 07:28:33.633 kclwcrs: wait=0 tm=689 *** 2012-04-29 07:28:33.633 kclwcrs: got 1 blocks from ksxprcv WAIT #140444679938584: nam='gc cr block 2-way' ela= 689 p1=1 p2=89233 p3=1 obj#=76896 tim=1335698913633418 2012-04-29 07:28:33.633490 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-04-29 07:28:33.633510 : kjbrcvdscn[0x0.12bbc1][from 2][idx 2012-04-29 07:28:33.633527 : kjbrcvdscn[no bscn <= rscn 0x0.12bbc1][from 2] *** 2012-04-29 07:28:33.633 kclwcrs: req=0 typ=cr(2) wtyp=2hop tm=689 ??TRACE???? ?????????TEST??????, ???????Dynamic Sampling?????,???????TEST?? CR???,???????’gc cr block 2-way’ ??: 2012-04-29 07:28:33.632654 : kjbsentscn[0x0.12bbc1][to 2] 12bbc1= 1227713  ???X$BH????CR???,kjbsentscn[0x0.12bbc1][to 2] ????? ? Instance 2 ???SCN=12bbc1=1227713   DBA=0x15c91.1 76896.0 ?  CR Request(obj#=76896) ??kjbrcvdscn????? [no bscn <= rscn 0x0.12bbc1][from 2] ,??? ??receive? SCN Version =12bbc1 ???Best Version CR Server Arch ??????????????????SELECT??: PARSING IN CURSOR #140444682869592 len=18 dep=0 uid=0 oct=3 lid=0 tim=1335698913635874 hv=1689401402 ad='b1a188f0' sqlid='c99yw1xkb4f1u' select * from test END OF STMT PARSE #140444682869592:c=4999,e=34017,p=0,cr=7,cu=0,mis=1,r=0,dep=0,og=1,plh=1357081020,tim=1335698913635870 EXEC #140444682869592:c=0,e=23,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335698913635939 WAIT #140444682869592: nam='SQL*Net message to client' ela= 7 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335698913636071 *** 2012-04-29 07:28:33.636 kclscrs: req=0 block=1/89233 *** 2012-04-29 07:28:33.636 kclscrs: bid=1:3:1:0:7:83:1:0:4:0:0:0:1:2:4:1:26:0:0:0:70:1a:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:2:0:1c:86:2d:4:0:0:0:0:a2:3c:7c:b:70:1a:0:0:0:0:1:0:7d:f8:76:1d:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:63:e5:0:0:0:0:0:0:10:0:0:0 2012-04-29 07:28:33.636209 : kjbcrc[0x15c91.1 76896.0][9] 2012-04-29 07:28:33.636228 : GSIPC:GMBQ: buff 0xba0e5d50, queue 0xbb79f278, pool 0x60013fa0, freeq 1, nxt 0xbb79f278, prv 0xbb79f278 2012-04-29 07:28:33.636244 : kjbmscrc(0x15c91.1)seq 0x3 reqid=0x1d(shadow 0xb4bb4458,reqid x1d)mas@2(infosz 200)(direct 1) 2012-04-29 07:28:33.636252 : kjbsentscn[0x0.12bbc4][to 2] 2012-04-29 07:28:33.636358 : GSIPC:SENDM: send msg 0xba0e5dc0 dest x20001 seq 24029 type 32 tkts xff0000 mlen x17001a0 2012-04-29 07:28:33.636861 : GSIPC:KSXPCB: msg 0xba0e5dc0 status 30, type 32, dest 2, rcvr 1 *** 2012-04-29 07:28:33.637 kclwcrs: wait=0 tm=865 *** 2012-04-29 07:28:33.637 kclwcrs: got 1 blocks from ksxprcv WAIT #140444682869592: nam='gc cr block 2-way' ela= 865 p1=1 p2=89233 p3=1 obj#=76896 tim=1335698913637294 2012-04-29 07:28:33.637356 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-04-29 07:28:33.637374 : kjbrcvdscn[0x0.12bbc4][from 2][idx 2012-04-29 07:28:33.637389 : kjbrcvdscn[no bscn <= rscn 0x0.12bbc4][from 2] *** 2012-04-29 07:28:33.637 kclwcrs: req=0 typ=cr(2) wtyp=2hop tm=865 ???, “SELECT * FROM TEST”??????’gc cr block 2-way’??:2012-04-29 07:28:33.637374 : kjbrcvdscn[0x0.12bbc4][from 2][idx 2012-04-29 07:28:33.637389 : kjbrcvdscn[no bscn ??Foreground Process? Remote LMS??got?? SCN=1227716 Version?CR, ??? ?????X$BH ?????scn??? ??????????Instance 1????2?SCN???CR?, ???????????Instance 1 Buffer Cache?? ??SCN Version ???CR ??????? ?????????: SQL> alter system set "_enable_minscn_cr"=false scope=spfile; System altered. SQL> alter system set "_db_block_max_cr_dba"=20 scope=spfile; System altered. SQL> startup force; ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance ORACLE instance started. Total System Global Area 1570009088 bytes Fixed Size 2228704 bytes Variable Size 989859360 bytes Database Buffers 570425344 bytes Redo Buffers 7495680 bytes Database mounted. Database opened. ???? “_enable_minscn_cr”=false ? “_db_block_max_cr_dba”=20 ???RAC????, ??????: ?Instance 2 Session C ?update??????? ?????Instance 1 ????? ,????Instance 1?Request CR SQL> update test set id=id+1 where id=2; -- Instance 2 1 row updated. SQL> select * From test; -- Instance 1 ID ---------- 1 2 ??? Instance 1? X$BH?? select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0;  STATE CR_SCN_BAS ---------- ---------- 3 1273080 3 1273071 3 1273041 3 1273039 8 0 SQL> update test set id=id+1 where id=3; 1 row updated. SQL> select * From test; ID ---------- 1 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1273091 3 1273080 3 1273071 3 1273041 3 1273039 8 0 ................... SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1273793 3 1273782 3 1273780 3 1273769 3 1273734 3 1273715 3 1273691 3 1273679 3 1273670 3 1273643 3 1273635 3 1273623 3 1273106 3 1273091 3 1273080 3 1273071 3 1273041 3 1273039 3 1273033 19 rows selected. SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1274993 ????? ???? “_enable_minscn_cr”(enable/disable minscn optimization for CR)=false ? “_db_block_max_cr_dba”=20 (Maximum Allowed Number of CR buffers per dba) 2? ??? ????? Instance 1 ??????????? ?? 19????CR?? “_enable_minscn_cr”?11g??????????,???Oracle????CR????SCN,?Foreground Process Receive????????????(SCN??)?SCN Version CR Block??????CBC?? SCN??????CR? , ?????????Buffer Cache??????? ????SCN Version?CR????,????? ?????????? ?????Snap_Scn ?? SCN?? ?????????Current SCN, ??????CR??????????????????????, ????Buffer Cache? ?????????? CR?????????, ?????? “_db_block_max_cr_dba” ???????, ???????????20 ,??????Buffer Cache?????19????CR?; ???”_db_block_max_cr_dba” ???????6 , ?????Buffer cache????????CR ???????6?? ??”_enable_minscn_cr” ??CR???MINSCN ??????, ?????????CR???????, ????? Foreground Process??????CR Request , ?? Holder Instance LMS ?build?? BEST CR ??, ?????????

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• Windows Azure: Major Updates for Mobile Backend Development

  - by ScottGu

  This week we released some great updates to Windows Azure that make it significantly easier to develop mobile applications that use the cloud. These new capabilities include: Mobile Services: Custom API support Mobile Services: Git Source Control support Mobile Services: Node.js NPM Module support Mobile Services: A .NET API via NuGet Mobile Services and Web Sites: Free 20MB SQL Database Option for Mobile Services and Web Sites Mobile Notification Hubs: Android Broadcast Push Notification Support All of these improvements are now available to use immediately (note: some are still in preview).  Below are more details about them. Mobile Services: Custom APIs, Git Source Control, and NuGet Windows Azure Mobile Services provides the ability to easily stand up a mobile backend that can be used to support your Windows 8, Windows Phone, iOS, Android and HTML5 client applications.  Starting with the first preview we supported the ability to easily extend your data backend logic with server side scripting that executes as part of client-side CRUD operations against your cloud back data tables. With today’s update we are extending this support even further and introducing the ability for you to also create and expose Custom APIs from your Mobile Service backend, and easily publish them to your Mobile clients without having to associate them with a data table. This capability enables a whole set of new scenarios – including the ability to work with data sources other than SQL Databases (for example: Table Services or MongoDB), broker calls to 3rd party APIs, integrate with Windows Azure Queues or Service Bus, work with custom non-JSON payloads (e.g. Windows Periodic Notifications), route client requests to services back on-premises (e.g. with the new Windows Azure BizTalk Services), or simply implement functionality that doesn’t correspond to a database operation.  The custom APIs can be written in server-side JavaScript (using Node.js) and can use Node’s NPM packages.  We will also be adding support for custom APIs written using .NET in the future as well. Creating a Custom API Adding a custom API to an existing Mobile Service is super easy.  Using the Windows Azure Management Portal you can now simply click the new “API” tab with your Mobile Service, and then click the “Create a Custom API” button to create a new Custom API within it: Give the API whatever name you want to expose, and then choose the security permissions you’d like to apply to the HTTP methods you expose within it.  You can easily lock down the HTTP verbs to your Custom API to be available to anyone, only those who have a valid application key, only authenticated users, or administrators.  Mobile Services will then enforce these permissions without you having to write any code: When you click the ok button you’ll see the new API show up in the API list.  Selecting it will enable you to edit the default script that contains some placeholder functionality: Today’s release enables Custom APIs to be written using Node.js (we will support writing Custom APIs in .NET as well in a future release), and the Custom API programming model follows the Node.js convention for modules, which is to export functions to handle HTTP requests. The default script above exposes functionality for an HTTP POST request. To support a GET, simply change the export statement accordingly.  Below is an example of some code for reading and returning data from Windows Azure Table Storage using the Azure Node API: After saving the changes, you can now call this API from any Mobile Service client application (including Windows 8, Windows Phone, iOS, Android or HTML5 with CORS). Below is the code for how you could invoke the API asynchronously from a Windows Store application using .NET and the new InvokeApiAsync method, and data-bind the results to control within your XAML:     private async void RefreshTodoItems() {         var results = await App.MobileService.InvokeApiAsync<List<TodoItem>>("todos", HttpMethod.Get, parameters: null);         ListItems.ItemsSource = new ObservableCollection<TodoItem>(results);     }    Integrating authentication and authorization with Custom APIs is really easy with Mobile Services. Just like with data requests, custom API requests enjoy the same built-in authentication and authorization support of Mobile Services (including integration with Microsoft ID, Google, Facebook and Twitter authentication providers), and it also enables you to easily integrate your Custom API code with other Mobile Service capabilities like push notifications, logging, SQL, etc. Check out our new tutorials to learn more about to use new Custom API support, and starting adding them to your app today. Mobile Services: Git Source Control Support Today’s Mobile Services update also enables source control integration with Git.  The new source control support provides a Git repository as part your Mobile Service, and it includes all of your existing Mobile Service scripts and permissions. You can clone that git repository on your local machine, make changes to any of your scripts, and then easily deploy the mobile service to production using Git. This enables a really great developer workflow that works on any developer machine (Windows, Mac and Linux). To use the new support, navigate to the dashboard for your mobile service and select the Set up source control link: If this is your first time enabling Git within Windows Azure, you will be prompted to enter the credentials you want to use to access the repository: Once you configure this, you can switch to the configure tab of your Mobile Service and you will see a Git URL you can use to use your repository: You can use this URL to clone the repository locally from your favorite command line: > git clone https://scottgutodo.scm.azure-mobile.net/ScottGuToDo.git Below is the directory structure of the repository: As you can see, the repository contains a service folder with several subfolders. Custom API scripts and associated permissions appear under the api folder as .js and .json files respectively (the .json files persist a JSON representation of the security settings for your endpoints). Similarly, table scripts and table permissions appear as .js and .json files, but since table scripts are separate per CRUD operation, they follow the naming convention of <tablename>.<operationname>.js. Finally, scheduled job scripts appear in the scheduler folder, and the shared folder is provided as a convenient location for you to store code shared by multiple scripts and a few miscellaneous things such as the APNS feedback script. Lets modify the table script todos.js file so that we have slightly better error handling when an exception occurs when we query our Table service: todos.js tableService.queryEntities(query, function(error, todoItems){     if (error) {         console.error("Error querying table: " + error);         response.send(500);     } else {         response.send(200, todoItems);     }        }); Save these changes, and now back in the command line prompt commit the changes and push them to the Mobile Services: > git add . > git commit –m "better error handling in todos.js" > git push Once deployment of the changes is complete, they will take effect immediately, and you will also see the changes be reflected in the portal: With the new Source Control feature, we’re making it really easy for you to edit your mobile service locally and push changes in an atomic fashion without sacrificing ease of use in the Windows Azure Portal. Mobile Services: NPM Module Support The new Mobile Services source control support also allows you to add any Node.js module you need in the scripts beyond the fixed set provided by Mobile Services. For example, you can easily switch to use Mongo instead of Windows Azure table in our example above. Set up Mongo DB by either purchasing a MongoLab subscription (which provides MongoDB as a Service) via the Windows Azure Store or set it up yourself on a Virtual Machine (either Windows or Linux). Then go the service folder of your local git repository and run the following command: > npm install mongoose This will add the Mongoose module to your Mobile Service scripts.  After that you can use and reference the Mongoose module in your custom API scripts to access your Mongo database: var mongoose = require('mongoose'); var schema = mongoose.Schema({ text: String, completed: Boolean });   exports.get = function (request, response) {     mongoose.connect('<your Mongo connection string> ');     TodoItemModel = mongoose.model('todoitem', schema);     TodoItemModel.find(function (err, items) {         if (err) {             console.log('error:' + err);             return response.send(500);         }         response.send(200, items);     }); }; Don’t forget to push your changes to your mobile service once you are done > git add . > git commit –m "Switched to use Mongo Labs" > git push Now our Mobile Service app is using Mongo DB! Note, with today’s update usage of custom Node.js modules is limited to Custom API scripts only. We will enable it in all scripts (including data and custom CRON tasks) shortly. New Mobile Services NuGet package, including .NET 4.5 support A few months ago we announced a new pre-release version of the Mobile Services client SDK based on portable class libraries (PCL). Today, we are excited to announce that this new library is now a stable .NET client SDK for mobile services and is no longer a pre-release package. Today’s update includes full support for Windows Store, Windows Phone 7.x, and .NET 4.5, which allows developers to use Mobile Services from ASP.NET or WPF applications. You can install and use this package today via NuGet. Mobile Services and Web Sites: Free 20MB Database for Mobile Services and Web Sites Starting today, every customer of Windows Azure gets one Free 20MB database to use for 12 months free (for both dev/test and production) with Web Sites and Mobile Services. When creating a Mobile Service or a Web Site, simply chose the new “Create a new Free 20MB database” option to take advantage of it: You can use this free SQL Database together with the 10 free Web Sites and 10 free Mobile Services you get with your Windows Azure subscription, or from any other Windows Azure VM or Cloud Service. Notification Hubs: Android Broadcast Push Notification Support Earlier this year, we introduced a new capability in Windows Azure for sending broadcast push notifications at high scale: Notification Hubs. In the initial preview of Notification Hubs you could use this support with both iOS and Windows devices.  Today we’re excited to announce new Notification Hubs support for sending push notifications to Android devices as well. Push notifications are a vital component of mobile applications.  They are critical not only in consumer apps, where they are used to increase app engagement and usage, but also in enterprise apps where up-to-date information increases employee responsiveness to business events.  You can use Notification Hubs to send push notifications to devices from any type of app (a Mobile Service, Web Site, Cloud Service or Virtual Machine). Notification Hubs provide you with the following capabilities: Cross-platform Push Notifications Support. Notification Hubs provide a common API to send push notifications to iOS, Android, or Windows Store at once.  Your app can send notifications in platform specific formats or in a platform-independent way.  Efficient Multicast. Notification Hubs are optimized to enable push notification broadcast to thousands or millions of devices with low latency.  Your server back-end can fire one message into a Notification Hub, and millions of push notifications can automatically be delivered to your users.  Devices and apps can specify a number of per-user tags when registering with a Notification Hub. These tags do not need to be pre-provisioned or disposed, and provide a very easy way to send filtered notifications to an infinite number of users/devices with a single API call.   Extreme Scale. Notification Hubs enable you to reach millions of devices without you having to re-architect or shard your application.  The pub/sub routing mechanism allows you to broadcast notifications in a super-efficient way.  This makes it incredibly easy to route and deliver notification messages to millions of users without having to build your own routing infrastructure. Usable from any Backend App. Notification Hubs can be easily integrated into any back-end server app, whether it is a Mobile Service, a Web Site, a Cloud Service or an IAAS VM. It is easy to configure Notification Hubs to send push notifications to Android. Create a new Notification Hub within the Windows Azure Management Portal (New->App Services->Service Bus->Notification Hub): Then register for Google Cloud Messaging using https://code.google.com/apis/console and obtain your API key, then simply paste that key on the Configure tab of your Notification Hub management page under the Google Cloud Messaging Settings: Then just add code to the OnCreate method of your Android app’s MainActivity class to register the device with Notification Hubs: gcm = GoogleCloudMessaging.getInstance(this); String connectionString = "<your listen access connection string>"; hub = new NotificationHub("<your notification hub name>", connectionString, this); String regid = gcm.register(SENDER_ID); hub.register(regid, "myTag"); Now you can broadcast notification from your .NET backend (or Node, Java, or PHP) to any Windows Store, Android, or iOS device registered for “myTag” tag via a single API call (you can literally broadcast messages to millions of clients you have registered with just one API call): var hubClient = NotificationHubClient.CreateClientFromConnectionString(                   “<your connection string with full access>”,                   "<your notification hub name>"); hubClient.SendGcmNativeNotification("{ 'data' : {'msg' : 'Hello from Windows Azure!' } }", "myTag”); Notification Hubs provide an extremely scalable, cross-platform, push notification infrastructure that enables you to efficiently route push notification messages to millions of mobile users and devices.  It will make enabling your push notification logic significantly simpler and more scalable, and allow you to build even better apps with it. Learn more about Notification Hubs here on MSDN . Summary The above features are now live and available to start using immediately (note: some of the services are still in preview).  If you don’t already have a Windows Azure account, you can sign-up for a free trial and start using them today.  Visit the Windows Azure Developer Center to learn more about how to build apps with it. Hope this helps, Scott P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

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• Java Animation Memory Overload [on hold]

  - by user2425429

  I need a way to reduce the memory usage of these programs while keeping the functionality. Every time I add 50 milliseconds or so to the set&display loop in AnimationTest1, it throws an out of memory error. Here is the code I have now: import java.awt.DisplayMode; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Polygon; import java.util.ArrayList; import java.util.List; import java.util.concurrent.Executor; import java.util.concurrent.Executors; import javax.swing.ImageIcon; public class AnimationTest1 { public static void main(String args[]) { AnimationTest1 test = new AnimationTest1(); test.run(); } private static final DisplayMode POSSIBLE_MODES[] = { new DisplayMode(800, 600, 32, 0), new DisplayMode(800, 600, 24, 0), new DisplayMode(800, 600, 16, 0), new DisplayMode(640, 480, 32, 0), new DisplayMode(640, 480, 24, 0), new DisplayMode(640, 480, 16, 0) }; private static final long DEMO_TIME = 4000; private ScreenManager screen; private Image bgImage; private Animation anim; public void loadImages() { // create animation List<Polygon> polygons=new ArrayList(); int[] x=new int[]{20,4,4,20,40,56,56,40}; int[] y=new int[]{20,32,40,44,44,40,32,20}; polygons.add(new Polygon(x,y,8)); anim = new Animation(); //# of frames long startTime = System.currentTimeMillis(); long currTimer = startTime; long elapsedTime = 0; boolean animated = false; Graphics2D g = screen.getGraphics(); int width=200; int height=200; //set&display loop while (currTimer - startTime < DEMO_TIME*2) { //draw the polygons if(!animated){ for(int j=0; j<polygons.size();j++){ for(int pos=0; pos<polygons.get(j).npoints; pos++){ polygons.get(j).xpoints[pos]+=1; } } anim.setNewPolyFrame(polygons , width , height , 64); } else{ // update animation anim.update(elapsedTime); draw(g); g.dispose(); screen.update(); try{ Thread.sleep(20); } catch(InterruptedException ie){} } if(currTimer - startTime == DEMO_TIME) animated=true; elapsedTime = System.currentTimeMillis() - currTimer; currTimer += elapsedTime; } } public void run() { screen = new ScreenManager(); try { DisplayMode displayMode = screen.findFirstCompatibleMode(POSSIBLE_MODES); screen.setFullScreen(displayMode); loadImages(); } finally { screen.restoreScreen(); } } public void draw(Graphics g) { // draw background g.drawImage(bgImage, 0, 0, null); // draw image g.drawImage(anim.getImage(), 0, 0, null); } } ScreenManager: import java.awt.Color; import java.awt.DisplayMode; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Toolkit; import java.awt.Window; import java.awt.event.KeyListener; import java.awt.event.MouseListener; import java.awt.image.BufferStrategy; import java.awt.image.BufferedImage; import javax.swing.JFrame; import javax.swing.JPanel; public class ScreenManager extends JPanel { private GraphicsDevice device; /** Creates a new ScreenManager object. */ public ScreenManager() { GraphicsEnvironment environment=GraphicsEnvironment.getLocalGraphicsEnvironment(); device = environment.getDefaultScreenDevice(); setBackground(Color.white); } /** Returns a list of compatible display modes for the default device on the system. */ public DisplayMode[] getCompatibleDisplayModes() { return device.getDisplayModes(); } /** Returns the first compatible mode in a list of modes. Returns null if no modes are compatible. */ public DisplayMode findFirstCompatibleMode( DisplayMode modes[]) { DisplayMode goodModes[] = device.getDisplayModes(); for (int i = 0; i < modes.length; i++) { for (int j = 0; j < goodModes.length; j++) { if (displayModesMatch(modes[i], goodModes[j])) { return modes[i]; } } } return null; } /** Returns the current display mode. */ public DisplayMode getCurrentDisplayMode() { return device.getDisplayMode(); } /** Determines if two display modes "match". Two display modes match if they have the same resolution, bit depth, and refresh rate. The bit depth is ignored if one of the modes has a bit depth of DisplayMode.BIT_DEPTH_MULTI. Likewise, the refresh rate is ignored if one of the modes has a refresh rate of DisplayMode.REFRESH_RATE_UNKNOWN. */ public boolean displayModesMatch(DisplayMode mode1, DisplayMode mode2) { if (mode1.getWidth() != mode2.getWidth() || mode1.getHeight() != mode2.getHeight()) { return false; } if (mode1.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && mode2.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && mode1.getBitDepth() != mode2.getBitDepth()) { return false; } if (mode1.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && mode2.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && mode1.getRefreshRate() != mode2.getRefreshRate()) { return false; } return true; } /** Enters full screen mode and changes the display mode. If the specified display mode is null or not compatible with this device, or if the display mode cannot be changed on this system, the current display mode is used. <p> The display uses a BufferStrategy with 2 buffers. */ public void setFullScreen(DisplayMode displayMode) { JFrame frame = new JFrame(); frame.setUndecorated(true); frame.setIgnoreRepaint(true); frame.setResizable(true); device.setFullScreenWindow(frame); if (displayMode != null && device.isDisplayChangeSupported()) { try { device.setDisplayMode(displayMode); } catch (IllegalArgumentException ex) { } } frame.createBufferStrategy(2); Graphics g=frame.getGraphics(); g.setColor(Color.white); g.drawRect(0, 0, frame.WIDTH, frame.HEIGHT); frame.paintAll(g); g.setColor(Color.black); g.dispose(); } /** Gets the graphics context for the display. The ScreenManager uses double buffering, so applications must call update() to show any graphics drawn. <p> The application must dispose of the graphics object. */ public Graphics2D getGraphics() { Window window = device.getFullScreenWindow(); if (window != null) { BufferStrategy strategy = window.getBufferStrategy(); return (Graphics2D)strategy.getDrawGraphics(); } else { return null; } } /** Updates the display. */ public void update() { Window window = device.getFullScreenWindow(); if (window != null) { BufferStrategy strategy = window.getBufferStrategy(); if (!strategy.contentsLost()) { strategy.show(); } } // Sync the display on some systems. // (on Linux, this fixes event queue problems) Toolkit.getDefaultToolkit().sync(); } /** Returns the window currently used in full screen mode. Returns null if the device is not in full screen mode. */ public Window getFullScreenWindow() { return device.getFullScreenWindow(); } /** Returns the width of the window currently used in full screen mode. Returns 0 if the device is not in full screen mode. */ public int getWidth() { Window window = device.getFullScreenWindow(); if (window != null) { return window.getWidth(); } else { return 0; } } /** Returns the height of the window currently used in full screen mode. Returns 0 if the device is not in full screen mode. */ public int getHeight() { Window window = device.getFullScreenWindow(); if (window != null) { return window.getHeight(); } else { return 0; } } /** Restores the screen's display mode. */ public void restoreScreen() { Window window = device.getFullScreenWindow(); if (window != null) { window.dispose(); } device.setFullScreenWindow(null); } /** Creates an image compatible with the current display. */ public BufferedImage createCompatibleImage(int w, int h, int transparency) { Window window = device.getFullScreenWindow(); if (window != null) { GraphicsConfiguration gc = window.getGraphicsConfiguration(); return gc.createCompatibleImage(w, h, transparency); } return null; } } Animation: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Polygon; import java.awt.image.BufferedImage; import java.util.ArrayList; import java.util.List; /** The Animation class manages a series of images (frames) and the amount of time to display each frame. */ public class Animation { private ArrayList frames; private int currFrameIndex; private long animTime; private long totalDuration; /** Creates a new, empty Animation. */ public Animation() { frames = new ArrayList(); totalDuration = 0; start(); } /** Adds an image to the animation with the specified duration (time to display the image). */ public synchronized void addFrame(BufferedImage image, long duration){ ScreenManager s = new ScreenManager(); totalDuration += duration; frames.add(new AnimFrame(image, totalDuration)); } /** Starts the animation over from the beginning. */ public synchronized void start() { animTime = 0; currFrameIndex = 0; } /** Updates the animation's current image (frame), if necessary. */ public synchronized void update(long elapsedTime) { if (frames.size() >= 1) { animTime += elapsedTime; /*if (animTime >= totalDuration) { animTime = animTime % totalDuration; currFrameIndex = 0; }*/ while (animTime > getFrame(0).endTime) { frames.remove(0); } } } /** Gets the Animation's current image. Returns null if this animation has no images. */ public synchronized Image getImage() { if (frames.size() > 0&&!(currFrameIndex>=frames.size())) { return getFrame(currFrameIndex).image; } else{ System.out.println("There are no frames!"); System.exit(0); } return null; } private AnimFrame getFrame(int i) { return (AnimFrame)frames.get(i); } private class AnimFrame { Image image; long endTime; public AnimFrame(Image image, long endTime) { this.image = image; this.endTime = endTime; } } public void setNewPolyFrame(List<Polygon> polys,int imagewidth,int imageheight,int time){ BufferedImage image=new BufferedImage(imagewidth, imageheight, 1); Graphics g=image.getGraphics(); for(int i=0;i<polys.size();i++){ g.drawPolygon(polys.get(i)); } addFrame(image,time); g.dispose(); } }

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• Animation Color [on hold]

  - by user2425429

  I'm having problems in my java program for animation. I'm trying to draw a hexagon with a shape similar to that of a trapezoid. Then, I'm making it move to the right for a certain amount of time (DEMO_TIME). Animation and ScreenManager are "API" classes, and AnimationTest1 is a demo. In my test program, it runs with a black screen and white stroke color. I'd like to know why this happened and how to fix it. I'm a beginner, so I apologize for this question being stupid to all you game programmers. Here is the code I have now: import java.awt.DisplayMode; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Polygon; import java.util.ArrayList; import java.util.List; import java.util.concurrent.Executor; import java.util.concurrent.Executors; import javax.swing.ImageIcon; public class AnimationTest1 { public static void main(String args[]) { AnimationTest1 test = new AnimationTest1(); test.run(); } private static final DisplayMode POSSIBLE_MODES[] = { new DisplayMode(800, 600, 32, 0), new DisplayMode(800, 600, 24, 0), new DisplayMode(800, 600, 16, 0), new DisplayMode(640, 480, 32, 0), new DisplayMode(640, 480, 24, 0), new DisplayMode(640, 480, 16, 0) }; private static final long DEMO_TIME = 4000; private ScreenManager screen; private Image bgImage; private Animation anim; public void loadImages() { // create animation List<Polygon> polygons=new ArrayList(); int[] x=new int[]{20,4,4,20,40,56,56,40}; int[] y=new int[]{20,32,40,44,44,40,32,20}; polygons.add(new Polygon(x,y,8)); anim = new Animation(); //# of frames long startTime = System.currentTimeMillis(); long currTimer = startTime; long elapsedTime = 0; boolean animated = false; Graphics2D g = screen.getGraphics(); int width=200; int height=200; while (currTimer - startTime < DEMO_TIME*2) { //draw the polygons if(!animated){ for(int j=0; j<polygons.size();j++){ for(int pos=0; pos<polygons.get(j).npoints; pos++){ polygons.get(j).xpoints[pos]+=1; } } anim.setNewPolyFrame(polygons , width , height , 64); } else{ // update animation anim.update(elapsedTime); draw(g); g.dispose(); screen.update(); try{ Thread.sleep(20); } catch(InterruptedException ie){} } if(currTimer - startTime == DEMO_TIME) animated=true; elapsedTime = System.currentTimeMillis() - currTimer; currTimer += elapsedTime; } } public void run() { screen = new ScreenManager(); try { DisplayMode displayMode = screen.findFirstCompatibleMode(POSSIBLE_MODES); screen.setFullScreen(displayMode); loadImages(); } finally { screen.restoreScreen(); } } public void draw(Graphics g) { // draw background g.drawImage(bgImage, 0, 0, null); // draw image g.drawImage(anim.getImage(), 0, 0, null); } } ScreenManager: import java.awt.Color; import java.awt.DisplayMode; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GraphicsConfiguration; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import java.awt.Toolkit; import java.awt.Window; import java.awt.event.KeyListener; import java.awt.event.MouseListener; import java.awt.image.BufferStrategy; import java.awt.image.BufferedImage; import javax.swing.JFrame; import javax.swing.JPanel; public class ScreenManager extends JPanel { private GraphicsDevice device; /** Creates a new ScreenManager object. */ public ScreenManager() { GraphicsEnvironment environment=GraphicsEnvironment.getLocalGraphicsEnvironment(); device = environment.getDefaultScreenDevice(); setBackground(Color.white); } /** Returns a list of compatible display modes for the default device on the system. */ public DisplayMode[] getCompatibleDisplayModes() { return device.getDisplayModes(); } /** Returns the first compatible mode in a list of modes. Returns null if no modes are compatible. */ public DisplayMode findFirstCompatibleMode( DisplayMode modes[]) { DisplayMode goodModes[] = device.getDisplayModes(); for (int i = 0; i < modes.length; i++) { for (int j = 0; j < goodModes.length; j++) { if (displayModesMatch(modes[i], goodModes[j])) { return modes[i]; } } } return null; } /** Returns the current display mode. */ public DisplayMode getCurrentDisplayMode() { return device.getDisplayMode(); } /** Determines if two display modes "match". Two display modes match if they have the same resolution, bit depth, and refresh rate. The bit depth is ignored if one of the modes has a bit depth of DisplayMode.BIT_DEPTH_MULTI. Likewise, the refresh rate is ignored if one of the modes has a refresh rate of DisplayMode.REFRESH_RATE_UNKNOWN. */ public boolean displayModesMatch(DisplayMode mode1, DisplayMode mode2) { if (mode1.getWidth() != mode2.getWidth() || mode1.getHeight() != mode2.getHeight()) { return false; } if (mode1.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && mode2.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && mode1.getBitDepth() != mode2.getBitDepth()) { return false; } if (mode1.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && mode2.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && mode1.getRefreshRate() != mode2.getRefreshRate()) { return false; } return true; } /** Enters full screen mode and changes the display mode. If the specified display mode is null or not compatible with this device, or if the display mode cannot be changed on this system, the current display mode is used. <p> The display uses a BufferStrategy with 2 buffers. */ public void setFullScreen(DisplayMode displayMode) { JFrame frame = new JFrame(); frame.setUndecorated(true); frame.setIgnoreRepaint(true); frame.setResizable(true); device.setFullScreenWindow(frame); if (displayMode != null && device.isDisplayChangeSupported()) { try { device.setDisplayMode(displayMode); } catch (IllegalArgumentException ex) { } } frame.createBufferStrategy(2); Graphics g=frame.getGraphics(); g.setColor(Color.white); g.drawRect(0, 0, frame.WIDTH, frame.HEIGHT); frame.paintAll(g); g.setColor(Color.black); g.dispose(); } /** Gets the graphics context for the display. The ScreenManager uses double buffering, so applications must call update() to show any graphics drawn. <p> The application must dispose of the graphics object. */ public Graphics2D getGraphics() { Window window = device.getFullScreenWindow(); if (window != null) { BufferStrategy strategy = window.getBufferStrategy(); return (Graphics2D)strategy.getDrawGraphics(); } else { return null; } } /** Updates the display. */ public void update() { Window window = device.getFullScreenWindow(); if (window != null) { BufferStrategy strategy = window.getBufferStrategy(); if (!strategy.contentsLost()) { strategy.show(); } } // Sync the display on some systems. // (on Linux, this fixes event queue problems) Toolkit.getDefaultToolkit().sync(); } /** Returns the window currently used in full screen mode. Returns null if the device is not in full screen mode. */ public Window getFullScreenWindow() { return device.getFullScreenWindow(); } /** Returns the width of the window currently used in full screen mode. Returns 0 if the device is not in full screen mode. */ public int getWidth() { Window window = device.getFullScreenWindow(); if (window != null) { return window.getWidth(); } else { return 0; } } /** Returns the height of the window currently used in full screen mode. Returns 0 if the device is not in full screen mode. */ public int getHeight() { Window window = device.getFullScreenWindow(); if (window != null) { return window.getHeight(); } else { return 0; } } /** Restores the screen's display mode. */ public void restoreScreen() { Window window = device.getFullScreenWindow(); if (window != null) { window.dispose(); } device.setFullScreenWindow(null); } /** Creates an image compatible with the current display. */ public BufferedImage createCompatibleImage(int w, int h, int transparency) { Window window = device.getFullScreenWindow(); if (window != null) { GraphicsConfiguration gc = window.getGraphicsConfiguration(); return gc.createCompatibleImage(w, h, transparency); } return null; } } Animation: import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.Polygon; import java.awt.image.BufferedImage; import java.util.ArrayList; import java.util.List; /** The Animation class manages a series of images (frames) and the amount of time to display each frame. */ public class Animation { private ArrayList frames; private int currFrameIndex; private long animTime; private long totalDuration; /** Creates a new, empty Animation. */ public Animation() { frames = new ArrayList(); totalDuration = 0; start(); } /** Adds an image to the animation with the specified duration (time to display the image). */ public synchronized void addFrame(BufferedImage image, long duration){ ScreenManager s = new ScreenManager(); totalDuration += duration; frames.add(new AnimFrame(image, totalDuration)); } /** Starts the animation over from the beginning. */ public synchronized void start() { animTime = 0; currFrameIndex = 0; } /** Updates the animation's current image (frame), if necessary. */ public synchronized void update(long elapsedTime) { if (frames.size() >= 1) { animTime += elapsedTime; /*if (animTime >= totalDuration) { animTime = animTime % totalDuration; currFrameIndex = 0; }*/ while (animTime > getFrame(0).endTime) { frames.remove(0); } } } /** Gets the Animation's current image. Returns null if this animation has no images. */ public synchronized Image getImage() { if (frames.size() > 0&&!(currFrameIndex>=frames.size())) { return getFrame(currFrameIndex).image; } else{ System.out.println("There are no frames!"); System.exit(0); } return null; } private AnimFrame getFrame(int i) { return (AnimFrame)frames.get(i); } private class AnimFrame { Image image; long endTime; public AnimFrame(Image image, long endTime) { this.image = image; this.endTime = endTime; } } public void setNewPolyFrame(List<Polygon> polys,int imagewidth,int imageheight,int time){ BufferedImage image=new BufferedImage(imagewidth, imageheight, 1); Graphics g=image.getGraphics(); for(int i=0;i<polys.size();i++){ g.drawPolygon(polys.get(i)); } addFrame(image,time); g.dispose(); } }

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• jqgrid with asp.net webmethod and json working with sorting, paging, searching and LINQ

  - by aimlessWonderer

  THIS WORKS! Most topics covering jqgrid and asp.net seem to relate to just receiving JSON, or working in the MVC framework, or utilizing other handlers or web services... but not many dealt with actually passing parameters back to an actual webmethod in the codebehind. Furthermore, scarce are the examples that contain successful implementation the AJAX paging, sorting, or searching along with LINQ to SQL for asp.net jqGrid. Below is a working example that may help others who need help to pass parameters to jqGrid in order to have correct paging, sorting, filtering.. it uses pieces from here and there... ================================================== First, THE JAVASCRIPT <script type="text/javascript"> $(document).ready(function() { var grid = $("#list"); $("#list").jqGrid({ // setup custom parameter names to pass to server prmNames: { search: "isSearch", nd: null, rows: "numRows", page: "page", sort: "sortField", order: "sortOrder" }, // add by default to avoid webmethod parameter conflicts postData: { searchString: '', searchField: '', searchOper: '' }, // setup ajax call to webmethod datatype: function(postdata) { mtype: "GET", $.ajax({ url: 'PageName.aspx/getGridData', type: "POST", contentType: "application/json; charset=utf-8", data: JSON.stringify(postdata), dataType: "json", success: function(data, st) { if (st == "success") { var grid = jQuery("#list")[0]; grid.addJSONData(JSON.parse(data.d)); } }, error: function() { alert("Error with AJAX callback"); } }); }, // this is what jqGrid is looking for in json callback jsonReader: { root: "rows", page: "page", total: "totalpages", records: "totalrecords", cell: "cell", id: "id", //index of the column with the PK in it userdata: "userdata", repeatitems: true }, colNames: ['Id', 'First Name', 'Last Name'], colModel: [ { name: 'id', index: 'id', width: 55, search: false }, { name: 'fname', index: 'fname', width: 200, searchoptions: { sopt: ['eq', 'ne', 'cn']} }, { name: 'lname', index: 'lname', width: 200, searchoptions: { sopt: ['eq', 'ne', 'cn']} } ], rowNum: 10, rowList: [10, 20, 30], pager: jQuery("#pager"), sortname: "fname", sortorder: "asc", viewrecords: true, caption: "Grid Title Here" }).jqGrid('navGrid', '#pager', { edit: false, add: false, del: false }, {}, // default settings for edit {}, // add {}, // delete { closeOnEscape: true, closeAfterSearch: true}, //search {} ) }); </script> ================================================== Second, THE C# WEBMETHOD [WebMethod] public static string getGridData(int? numRows, int? page, string sortField, string sortOrder, bool isSearch, string searchField, string searchString, string searchOper) { string result = null; MyDataContext db = null; try { //--- retrieve the data db = new MyDataContext("my connection string path"); var query = from u in db.TBL_USERs select u; //--- determine if this is a search filter if (isSearch) { searchOper = getOperator(searchOper); // need to associate correct operator to value sent from jqGrid string whereClause = String.Format("{0} {1} {2}", searchField, searchOper, "@" + searchField); //--- associate value to field parameter Dictionary<string, object> param = new Dictionary<string, object>(); param.Add("@" + searchField, searchString); query = query.Where(whereClause, new object[1] { param }); } //--- setup calculations int pageIndex = page ?? 1; //--- current page int pageSize = numRows ?? 10; //--- number of rows to show per page int totalRecords = query.Count(); //--- number of total items from query int totalPages = (int)Math.Ceiling((decimal)totalRecords / (decimal)pageSize); //--- number of pages //--- filter dataset for paging and sorting IQueryable<TBL_USER> orderedRecords = query.OrderBy(sortfield); IEnumerable<TBL_USER> sortedRecords = orderedRecords.ToList(); if (sortorder == "desc") sortedRecords= sortedRecords.Reverse(); sortedRecords= sortedRecords .Skip((pageIndex - 1) * pageSize) //--- page the data .Take(pageSize); //--- format json var jsonData = new { totalpages = totalPages, //--- number of pages page = pageIndex, //--- current page totalrecords = totalRecords, //--- total items rows = ( from row in sortedRecords select new { i = row.USER_ID, cell = new string[] { row.USER_ID.ToString(), row.FNAME.ToString(), row.LNAME } } ).ToArray() }; result = Newtonsoft.Json.JsonConvert.SerializeObject(jsonData); } catch (Exception ex) { Debug.WriteLine(ex); } finally { if (db != null) db.Dispose(); } return result; } ================================================== Third, NECESSITIES In order to have dynamic OrderBy clauses in the LINQ, I had to pull in a class to my AppCode folder called 'Dynamic.cs'. You can retrieve the file from downloading here. You will find the file in the "DynamicQuery" folder. That file will give you the ability to utilized dynamic ORDERBY clause since we don't know what column we're filtering by except on the initial load. To serialize the JSON back from the C-sharp to the JS, I incorporated the James Newton-King JSON.net DLL found here : http://json.codeplex.com/releases/view/37810. After downloading, there is a "Newtonsoft.Json.Compact.dll" which you can add in your Bin folder as a reference Here's my USING's block using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Web.UI.WebControls; using System.Web.Services; using System.Linq.Dynamic; For the Javascript references, I'm using the following scripts in respective order in case that helps some folks: 1) jquery-1.3.2.min.js ... 2) jquery-ui-1.7.2.custom.min.js ... 3) json.min.js ... 4) i18n/grid.locale-en.js ... 5) jquery.jqGrid.min.js For the CSS, I'm using jqGrid's necessities as well as the jQuery UI Theme: 1) jquery_theme/jquery-ui-1.7.2.custom.css ... 2) ui.jqgrid.css The key to getting the parameters from the JS to the WebMethod without having to parse an unserialized string on the backend or having to setup some JS logic to switch methods for different numbers of parameters was this block postData: { searchString: '', searchField: '', searchOper: '' }, Those parameters will still be set correctly when you actually do a search and then reset to empty when you "reset" or want the grid to not do any filtering Hope this helps some others!!!! Please reply if you find major issues or ways of refactoring or doing better that I haven't considered.

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• Can't send FB Notifications with new API

  - by Zak Khalique

  Really need some help with this one! I'm trying to send notifications from a canvas app using the new notifications API but I keep getting the following exception: OAuthException: (#200) Only web canvas apps can send app notifications However, the app IS loaded in the Facebook canvas -- I'm making an ajax call to my server when the user takes a particular action which triggers the notification POST request. The user has also authorized the app. This is the code I'm using: $graphUrl = $user_id . "/notifications"; $params = array( "access_token" => $admintoken, "href" => $link, "template" => "string of text < 180 chars" ); try { $result = $facebook->_graph($graphUrl, 'POST', $params); } catch (Exception $e){ echo $e; }

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• socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access

  - by Sean Ochoa

  Hello all. I'm trying to create a custom TCP stack using Python 2.6.5 on Windows 7 to serve valid http page requests on port 80 locally. But, I've run into a snag with what seems like Windows 7 tightened up security. This code worked on Vista. Here's my sample code: import SocketServer class MyTCPHandler(SocketServer.BaseRequestHandler): def handle(self): headerText = """HTTP/1.0 200 OK Date: Fri, 31 Dec 1999 23:59:59 GMT Content-Type: text/html Content-Length: 1354""" bodyText = "<html><body>some page</body></html>" self.request.send(headerText + "\n" + bodyText) if __name__ == "__main__": HOST, PORT = "localhost", 80 server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) server.serve_forever() C:\pythonpython TestServer.py Traceback (most recent call last): File "TestServer.py", line 19, in server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler) File "C:\Python26\lib\SocketServer.py", line 400, in init self.server_bind() File "C:\Python26\lib\SocketServer.py", line 411, in server_bind self.socket.bind(self.server_address) File "", line 1, in bind socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions How exactly do I get this to work on Windows 7?

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• How to prevent Android bluetooth RFCOMM connection from dying immediately after .connect()?

  - by Gilead

  I'm trying to connect to a Zeemote (http://zeemote.com/) gaming controller from Moto Droid running 2.0.1 firmware. The test application below does connect to the device (LED flashes) but connection is dropped immediately after that. I can connect to the device perfectly fine using bluez tools (log attached as well). I'm quite at a loss here, I work on it for so long that I ran out of ideas so any help would be very much appreciated. Thanks, Max =========================================== Code: public class ZeeTest extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); try { test(); } catch (IOException e) { e.printStackTrace(); } } public void test() throws IOException { BluetoothDevice zee = BluetoothAdapter.getDefaultAdapter(). getRemoteDevice("00:1C:4D:02:A6:55"); Log.d("ZeeTest", "++++ Creating socket"); BluetoothSocket sock = zee.createRfcommSocketToServiceRecord( UUID.fromString("8e1f0cf7-508f-4875-b62c-fbb67fd34812")); Log.d("ZeeTest", "++++ Connecting"); sock.connect(); Log.d("ZeeTest", "++++ Connected"); final InputStream in = sock.getInputStream(); new Thread() { @Override public void run() { byte[] buffer = new byte[32]; int bytes = 0; int x = 0; Log.d("ZeeTest", "++++ Listening..."); while (x < 200) { x++; try { bytes = in.read(buffer); Log.d("ZeeTest", "++++ Read "+ bytes +" bytes"); } catch (IOException e) { // java.io.IOException: Software caused connection abort if (x % 50 == 0) { Log.d("ZeeTest", "Tried "+ x +" times ("+ bytes +")"); } try { Thread.sleep(100); } catch (InterruptedException ie) {} } } Log.d("ZeeTest", "++++ Done: thread exit"); } }.start(); Log.d("ZeeTest", "++++ Done: test()"); } } =========================================== Log: I/ActivityManager( 1169): Start proc zee.test for activity zee.test/.ZeeTest: pid=4294 uid=10084 gids={3002, 3001, 3003} I/dalvikvm( 4294): Debugger thread not active, ignoring DDM send (t=0x41504e4d l=38) D/dalvikvm( 4287): LinearAlloc 0x0 used 640700 of 5242880 (12%) I/dalvikvm( 4294): Debugger thread not active, ignoring DDM send (t=0x41504e4d l=20) D/ZeeTest ( 4294): ++++ Creating socket D/ZeeTest ( 4294): ++++ Connecting E/BluetoothEventLoop.cpp( 1169): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/1240/hci0/dev_00_1C_4D_02_A6_55 I/usbd ( 1068): process_usb_uevent_message(): buffer = add@/devices/virtual/bluetooth/hci0/hci0:1 I/usbd ( 1068): main(): call select(...) E/BluetoothEventLoop.cpp( 1169): event_filter: Received signal org.bluez.Adapter:DeviceFound from /org/bluez/1240/hci0 V/BluetoothEventRedirector( 1242): Received android.bluetooth.device.action.FOUND V/BluetoothEventRedirector( 1242): Received android.bleutooth.device.action.UUID D/ZeeTest ( 4294): ++++ Connected D/ZeeTest ( 4294): ++++ Done: test() D/ZeeTest ( 4294): ++++ Listening... I/ActivityManager( 1169): Displayed activity zee.test/.ZeeTest: 2296 ms (total 2296 ms) E/BluetoothEventLoop.cpp( 1169): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/1240/hci0/dev_00_1C_4D_02_A6_55 I/usbd ( 1068): process_usb_uevent_message(): buffer = remove@/devices/virtual/bluetooth/hci0/hci0:1 I/usbd ( 1068): main(): call select(...) V/BluetoothEventRedirector( 1242): Received android.bleutooth.device.action.UUID D/ZeeTest ( 4294): Tried 50 times (0) D/ZeeTest ( 4294): Tried 100 times (0) D/ZeeTest ( 4294): Tried 150 times (0) D/ZeeTest ( 4294): Tried 200 times (0) D/ZeeTest ( 4294): ++++ Done: thread exit =========================================== Terminal log: $ sdptool browse Inquiring ... Browsing 00:1C:4D:02:A6:55 ... $ sdptool records 00:1C:4D:02:A6:55 Service Name: Zeemote Service RecHandle: 0x10015 Service Class ID List: UUID 128: 8e1f0cf7-508f-4875-b62c-fbb67fd34812 Protocol Descriptor List: "L2CAP" (0x0100) "RFCOMM" (0x0003) Channel: 1 Language Base Attr List: code_ISO639: 0x656e encoding: 0x6a base_offset: 0x100 $ rfcomm connect /dev/tty10 00:1C:4D:02:A6:55 Connected /dev/rfcomm0 to 00:1C:4D:02:A6:55 on channel 1 Press CTRL-C for hangup # rfcomm show /dev/tty10 rfcomm0: 00:1F:3A:E4:C8:40 - 00:1C:4D:02:A6:55 channel 1 connected [reuse-dlc release-on-hup tty-attached] # cat /dev/tty10 (nothing here) # hcidump HCI sniffer - Bluetooth packet analyzer ver 1.42 device: hci0 snap_len: 1028 filter: 0xffffffff < HCI Command: Create Connection (0x01|0x0005) plen 13 > HCI Event: Command Status (0x0f) plen 4 > HCI Event: Connect Complete (0x03) plen 11 < HCI Command: Read Remote Supported Features (0x01|0x001b) plen 2 > HCI Event: Read Remote Supported Features (0x0b) plen 11 < ACL data: handle 11 flags 0x02 dlen 10 L2CAP(s): Info req: type 2 > HCI Event: Command Status (0x0f) plen 4 > HCI Event: Page Scan Repetition Mode Change (0x20) plen 7 > HCI Event: Max Slots Change (0x1b) plen 3 < HCI Command: Remote Name Request (0x01|0x0019) plen 10 > HCI Event: Command Status (0x0f) plen 4 > ACL data: handle 11 flags 0x02 dlen 16 L2CAP(s): Info rsp: type 2 result 0 Extended feature mask 0x0000 < ACL data: handle 11 flags 0x02 dlen 12 L2CAP(s): Connect req: psm 3 scid 0x0040 > HCI Event: Number of Completed Packets (0x13) plen 5 > ACL data: handle 11 flags 0x02 dlen 16 L2CAP(s): Connect rsp: dcid 0x04fb scid 0x0040 result 1 status 2 Connection pending - Authorization pending > HCI Event: Remote Name Req Complete (0x07) plen 255 > ACL data: handle 11 flags 0x02 dlen 16 L2CAP(s): Connect rsp: dcid 0x04fb scid 0x0040 result 0 status 0 Connection successful < ACL data: handle 11 flags 0x02 dlen 16 L2CAP(s): Config req: dcid 0x04fb flags 0x00 clen 4 MTU 1013 (events are properly received using bluez)

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• WPF: Asynchronous progress bar

  - by SumGuy

  I'm trying to create a progress bar that will work asynchronously to the main process. I'm created a new event and invoked it however everytime I then try to perform operations on the progress bar I recieve the following error: "The calling thread cannot access this object because a different thread owns it" The following code is an attempt to send an instance of the progress bar to the event as an object, it obviously failed but it gives you an idea of what the code looks like. private event EventHandler importing; void MdbDataImport_importing(object sender, EventArgs e) { ProgressBar pb = (ProgressBar)sender; while (true) { if (pb.Value >= 200) pb.Value = 0; pb.Value += 10; } } private void btnImport_Click(object sender, RoutedEventArgs e) { importing += new EventHandler(MdbDataImport_importing); IAsyncResult aResult = null; aResult = importing.BeginInvoke(pbDataImport, null, null, null); importing.EndInvoke(aResult); } Does anyone have ideas of how to do this. Thanks in advance SumGuy.

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• SQL Server 2005: Improving performance for thousands or Insert requests. logout-login time= 120ms.

  - by Rad

  Can somebody shed some lights on how SQL Server 2005 deals with may request issued by a client using ADO.NET 2.0. Below is the shortend output of SQL Trace. I can see that connection pooling is working (I believe there is only one connection being pooled). What is not clear to me is why we have so many sp_reset_connection calls i.e a series of: Audit Login, SQL:BatchStarting, RPC:Starting and Audit Logout for each loop in for loop below. I can see that there is constant switching between tempdb and master database which leads me to conclude that we lost the context when next connection is created by fetching it from the pool based on ConectionString argument. I can see that every 15ms I can get 100-200 login/logout per second (reported at the same time by Profiler). The after 15ms I have again a series fo 100-200 login/logout per second. I need clarification on how this might affect much complex insert queries in production environment. I use Enterprise Library 2006, the code is compiled with VS 2005 and it is a console application that parses a flat file with 10 of thousand of rows grouping parent-child rows, runs on an application server and runs 2 stored procedure on a remote SQL Server 2005 inserting a parent record, retrieves Identity value and using it calls the second stored procedure 1, 2 or multiple times (sometimes several thousands) inserting child records. The child table has close to 10 million records with 5-10 indexes some of them being covering non-clustered. There is a pretty complex Insert trigger that copies inserted detail record to an archive table. All in all I only have 7 inserts per second which means it can take 2-4 hours for 50 thousand records. When I run Profiler on the test server (that is almost equivalent with production server) I can see that there is about 120ms between Audit Logout and Audit Login trace entries which almost give me chance to insert about 8 records. So my question is if there is some way to improve inserting of records since the company loads 100 thousands of records and does daily planning and has SLA to fulfill client request coming as flat file orders and some big files 10 thousands have to be processed(imported quickly). 4 hours to import 60 thousands should be reduced to 30 minutes. I was thinking to use BatchSize of DataAdapter to send multiple stored procedure calls, SQL Bulk inserts to batch multiple inserts from DataReader or DataTable, SSIS fast load. But I don't know how to properly analyze re-indexing and stats population and maybe this has to take some time to finish. What is worse is that the company uses the biggest table for reporting and other online processing and indexes cannot be dropped. I manage transaction manually by setting a field to a value and do an transactional update changing that value to a new value that other applications are using to get committed rows. Please advise how to approach this problem. For now I am trying to have a staging tables with minimal logging in a separate database and no indexes and I will try to do batched (massive) parent child inserts. I believe Production DB has simple recovery model, but it could be full recovery. If DB user that is being used by my .NET console application has bulkadmin role does it mean its bulk inserts are minimally logged. I understand that when a table has clustered and many non-clustered indexes that inserts are still logged for each row. Connection pooling is working, but with many login/logouts. Why? for (int i = 1; i <= 10000; i++){ using (SqlConnection conn = new SqlConnection("server=(local);database=master;integrated security=sspi;")) {conn.Open(); using (SqlCommand cmd = conn.CreateCommand()){ cmd.CommandText = "use tempdb"; cmd.ExecuteNonQuery();}}} SQL Server Profiler trace: Audit Login master 2010-01-13 23:18:45.337 1 - Nonpooled SQL:BatchStarting use tempdb master 2010-01-13 23:18:45.337 RPC:Starting exec sp_reset_conn tempdb 2010-01-13 23:18:45.337 Audit Logout tempdb 2010-01-13 23:18:45.337 2 - Pooled Audit Login -- network protocol master 2010-01-13 23:18:45.383 2 - Pooled SQL:BatchStarting use tempdb master 2010-01-13 23:18:45.383 RPC:Starting exec sp_reset_conn tempdb 2010-01-13 23:18:45.383 Audit Logout tempdb 2010-01-13 23:18:45.383 2 - Pooled Audit Login -- network protocol master 2010-01-13 23:18:45.383 2 - Pooled SQL:BatchStarting use tempdb master 2010-01-13 23:18:45.383 RPC:Starting exec sp_reset_conn tempdb 2010-01-13 23:18:45.383 Audit Logout tempdb 2010-01-13 23:18:45.383 2 - Pooled

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• Jquery and live act wired but act ok after force refresh in IE

  - by Y.G.J

  hi guys - somthing is wrong with my code and i can't get what it is... i have a div id = "personaltab" i have a form in side it to login the user with username and password. if success the jquery empty the div and puts in the form of the bidding. if the user try to bid the other ajax that assign to the button is working but for some reason skips the empty and just adding the responded ajax to the div i have checked that in IE and chrome and it is working fine in chrome here are my codes $("#login").click(function() { var id = $("input#pid").val(); var user = $("input#puser").val(); var pass = $("input#ppass").val(); var dataString = 'id='+ id + '&user='+ user + '&pass=' + pass; if (user == "") { alert("error"); $("input#puser").focus(); return false; } if (pass == "") { alert("error"); $("input#ppass").focus(); return false; } $.ajax({ type: "POST", url: "loginpersonal.asp", data: dataString, success: function(msg) { if (msg=="False") { alert("error"); $("#personaltab").show(); } else { $("#personaltab").fadeOut("normal",function(){ $("#personaltab").empty(); $("#personaltab").append(msg); $("#personaltab").slideDown(); }); } }, error: function (XMLHttpRequest, textStatus, errorThrown) { alert('error'); } }); return false; }); $("#sendbid").live("click", function(){ var startat = $("input[name=startat]").val(); var sprice = $("input[name=sprice]").val(); if (parseInt(sprice)<=parseInt(startat)) { alert("error"); $("input[name=sprice]").focus(); return false; } else { var payment = $("select[name=payment]").val(); if ($('input[name=credit]').is(':checked') ){ var credit = true; } var prodid = $("input[name=id]").val(); var dataString = 'id='+ prodid + '&price='+ sprice + '&payment=' + payment + '&credit=' + credit; $.ajax({ type: "POST", url: "loginpersonal.asp", data: dataString, success: function(msg) { $("#personaltab").empty(); $("#personaltab").append(msg); $("#personaltab").show(); }, error: function (XMLHttpRequest, textStatus, errorThrown) { alert('error'); } }); } return false; });

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• How to disable scrolling in ScrollViewer while Ctrl is pressed

  - by zunyite

  I'd like to implement zoom function while Ctrl key is pressed. But the MouseWheel event is not trigger while the mouse is over the ScrollView. Is there any way to do it? ps:SilverLight 4.0 <UserControl x:Class="SilverlightApplication11.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="400"> <Grid x:Name="LayoutRoot" Background="White"> <ScrollViewer Background="Gray" MouseWheel="ScrollViewer_MouseWheel" x:Name="scrollViewer"> <Rectangle Width="200" Height="2000" MouseWheel="ScrollViewer_MouseWheel" Fill="AliceBlue" /> </ScrollViewer> </Grid> private void ScrollViewer_MouseWheel(object sender, MouseWheelEventArgs e) { if (Keyboard.Modifiers.HasFlag(ModifierKeys.Control)) { zoom+=0.1; e.Handled = true; } }

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• Using Aggregate functions in DataView filters

  - by Shrewd Demon

  hi, i have a DataTable that has a column ("Profit"). What i want is to get the Sum of all the values in this table. I tried to do this in the following manner... DataTable dsTemp = new DataTable(); dsTemp.Columns.Add("Profit"); DataRow dr = null; dr = dsTemp.NewRow(); dr["Profit"] = 100; dsTemp.Rows.Add(dr); dr = dsTemp.NewRow(); dr["Profit"] = 200; dsTemp.Rows.Add(dr); DataView dvTotal = dsTemp.DefaultView; dvTotal.RowFilter = " SUM ( Profit ) "; DataTable dt = dvTotal.ToTable(); But i get an error while applying the filter... how can i get the Sum of the Profit column in a variable thank you...

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• AutoMapper Mapping IEnumerable to DataReader Issue

  - by user74825

  I am using AutoMapper to datareader using code as discussed below http://elegantcode.com/2009/10/16/mapping-from-idatareaderidatarecord-with-automapper/ I see it being very flakky...and unpredictable. 1) Same code with same datareader at times brings value back to the dto result set and at times doesnot. 2) I have an ID value coming from database as 100, 200. When it maps to the DTO that is of type integer this 100 is changed to a large value (like 234343211). Any ideas on why am I seeing this inconsitency. Should I be using the standard while (reader.Read())? and stop using automapper?

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• JSON request failing because of line breaks, how to escape them?

  - by mrblah

  Hi, My JSON request seems to be failing because of line breaks (I am programatically weaving my own JSON string). How can I escape for line breaks? {"rc": "200", "m" : "", "o": "<div class='s1'> <div class='avatar'> <a href='\/asdf'>asdf<\/a><br \/> <strong>0<\/strong> <\/div> <div class='sl'> <p> 444444444 <\/p> <\/div> <div class='clear'> <\/div> <\/div>"} string jsonString = BuildJSON(someCollection).Replace(@"/", @"\/");

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• Proper way to add record to many to many relationship in Django

  - by blcArmadillo

  First off, I'm planning on running my project on google app engine so I'm using djangoappengine which as far as I know doesn't support django's ManyToManyField type. Because of this I've setup my models like this: from django.db import models from django.contrib.auth.models import User class Group(models.Model): name = models.CharField(max_length=200) class UserGroup(models.Model): user = models.ForeignKey(User) group = models.ForeignKey(Group) On a page I have a form field where people can enter a group name. I want the results from this form field to create a UserGroup object for the user - group combination and if the group doesn't yet exist create a new Group object. At first I started putting this logic in the UserGroup class with a add_group method but quickly realized that it doesn't really make sense to put this in the UserGroup class. What would the proper way of doing this be? I saw some stuff about model managers. Is this what those are for?

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• Drupal JSON POST from PhoneGap

  - by abritez

  I am trying to send a POST request to Drupal's Services module & JSON_Server module, however I am getting { "#error": true, "#data": "Invalid method " } Since PhoneGap runs html files from locally on the phone, should i need to worry about JSONP. The issue I have with that is that I must POST data, and JSONP only allows for GET. Any ideas would be helpful. Thanks! //SEND REQUEST AND CALLBACK FUNCTION var req; DrupalService.prototype.request = function(dataObject, callback){ req = false; var url = DRUPAL_JSON_URL; var params = "data="+dataObject; try { req = new XMLHttpRequest(); } catch(e) { req = false; } if(req) { req.onreadystatechange = function() {//Call a function when the state changes. if(req.readyState == 4 && req.status == 200) { console.log(" "+req.responseText); } } req.open("POST", url, false); req.send(params); } }

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• UIWebView frame resize does not resize the inner content...

  - by Markus Gömmel

  Hi, if I change the frame of a UIWebView (scalesPageToFit property is YES), what do I have to do that the zooming level of a currently displayed webpage persists? Let's say I have a UIWebView frame with a width of 200 pixels, and has zoomed into a website so that only one column is visible. After changing the width to 300, I still see the column with the same size, and additional space at the left and right. But what I would need is that I still only see this column, but bigger. Any ideas what I have to do to achive this? I tried a lot of things, but nothing worked so far. By the way, the iPhone built in Safari browser does exactly this thing (with the same website, so it's not content related) when rotating the iPhone... I see the same content, bug bigger, NOT more content as it happens with my current version of code. Thanks for helping! Markus

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• jQuery issue - #<an Object> has no method

  - by Shaun

  I've tried a veriety of jQuery plugins recently and I keep getting this error … … regardless of what plugin I try to use. I've checked the links to the JS files which are all there and working fine. I'm using Drupal if that makes any difference. I've run the plugins away from the main site to demonstrate that they are working and that I am doing things right with 100% success. Any ideas? Update: My jQuery file called in the footer: $(document).ready(function() { $('#footer_holder').hide(); // Fancy Box $("a.fancybox").fancybox({ 'hideOnContentClick': true, 'titlePosition' : 'over', 'transitionIn' : 'elastic', 'transitionOut' : 'elastic', 'speedIn' : 600, 'speedOut' : 200, 'overlayShow' : false, }); $("#homepage_slider").easySlider({ auto: true, continuous: true, }); }); *note - fancy box works fine. jQuery is sorted out by Drupal. I'm running version 1.4

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• How to convert SSRS 2008 Server reports to SSRS 2008 Client Reports

  - by Nasser Hajloo

  I have a large SSRS 2008 Server Report Project (more than 200 reports). Currently my companystrategy has been changed and we want to convert these server reports to client reports. All of the Server reports uses Storeprocedures (or in some cases from the SQl Functions) All of them work properly andthere is no problem Beause of project scale it is not a good idea to create all of server reports in client again. SO I want to check How to convert SSRS 2008 Server reports to SSRS 2008 Client Reports? RDL to RDLC. Note : I knowthat Client reports use Dataset And I have to create Dataset. I'm also looking for a way to generate these dataset too.but for now I'm just looking for a way to convert RDL files to RDLC files. If there are anyApplication which can convert RDL XML to RDLC XML let me know. Any help appriciate.

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• Space partitioning algorithm

  - by Karol Kolenda

  I have a set of points which are contained within the rectangle. I'd like to split the rectangles into subrectangles based on point density (giving a number of subrectangles or desired density, whichever is easiest). The partitioning doesn't have to be exact (almost any approximation better than regular grid would do), but the algorithm have to cope with the large number of points - approx. 200 millions. The desired number of subrectangles however is substantially lower (around 1000). Does anyone knows any algorithm which may help me with this particular task?

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• jQuery getJSON response null for Firefox, works for IE

  - by user186106

  $.getJSON(service + "/GetJobTags", { tag: "a" }, function(json) { $.each(json, function(i,val) { alert(val.Title); }); }); It calls: http://127.0.0.1:20087/ClientService.svc/GetJobTags?tag=a This is probably of note, the service is running on a different port to the client application, which is on: http://127.0.0.1:32017/index.htm Firefox says HTTP 200 OK but the response data is null (and it highlights in red in Firebug). In IE it works fine, and the server is returning json. Is this a permissions problem? Do I need to use JSONP?

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• Headers to set for AJAX calls in a custom webserver

  - by ErJab

  I'm writing a custom web server. When I enter the URL of my server in the browser, I get the sample text I write out to the socket in my browser correctly. This is the HTTP response that I write: HTTP/1.1 200 OK\r\n Server: My Server\r\n Date: Blah\r\n \r\n This is some sample text. This appears in my browser correctly when I connect directly to the server entering the URL. However, if I use Ajax (jQuery) to access the same URL and then set the innerHTML of an element on the HTML page, I do not get any data printed. Is there any other header I need to set on my web server so that the browser's XMLHttpRequest object detects the response?

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