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  • Using jQuery for Effects

    - by OneNerd
    Ok - have been tasked with possibly an impossible (or at least a potentially nightmarish) scenario. Need to come as close as possible to reproducing PowerPoint-like effects via HTML/JavaScript (the spec is large and ugly, so I will spare you the details). Ultimately, I am looking for a solid launching point. I have used both Prototype/Scriptaculous as well as jQuery in many projects, and based on what I am seeing, it appears jQuery has the more plug-in available, so am leaning towards using jQuery. Can anyone point me to some plug-ins, articles, or anything else that would help me in accelerating the research on this so I can define to my client what can and cannot be done. Any other suggestions from you jQuery gurus are welcome of course. Thanks -

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  • Using ActiveRecord::Base.transaction in a rake task?

    - by Brian Jordan
    I am writing a rake task which, at one point, uses a custom YAML file import method to seed the database. At one point in the import code, I have: ActiveRecord::Base.transaction do Trying to run the rake task throws: You have a nil object when you didn't expect it! You might have expected an instance of ActiveRecord::Base. The error occurred while evaluating nil.[] The stack trace points to the aforementioned line in the code. Is there a way to instantiate ActiveRecord::Base during a rake task? Thanks!

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  • How would you create a string of all UTF-8 characters? [PHP]

    - by Xeoncross
    There are many ways to represent the +1 million UTF-8 characters. Take the latin capital "A" with macron (A). This is unicode code point U+0100, hex number 0xc4 0x80, decimal number 196 128, and binary 11000100 10000000. I would like to create a collection of the first 65,535 UTF-8 characters for use in testing applications. These are all unicode characters up to code point U+FFFF (byte3). Is it possible to do something like a for($x=0) loop and then convert the resulting decimal to another base (like hex) which would allow the creation of the matching unicode character? I can create the value A using something like this: $char = "\xc4\x80"; // or $char = chr(196).chr(128); However, I am not sure how to turn this into an automated process. // fail! $char = "\x". dechex($a). "\x". dexhex($$b);

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  • How can one describe a rock-paper-scissors relationship between 3 items?

    - by Madara Uchiha
    Let's say I have the following structure: abstract class Hand {} class Rock extends Hand {} class Paper extends Hand {} class Scissors extends Hand {} The goal is to make a function (or a method) Hand::compareHands(Hand $hand1, Hand $hand2), which would return the winning hand in a rock-paper-scissors match. That would be very easy with a bunch of ifs, but the point is to have a more robust structure, that's relying on polymorphism rather than on procedural code. P.S. this is done in actual production code, if someone is asking. This isn't some sort of challenge or homework. (It's not really rock-paper-scissors, but you get the point).

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  • Determining if and where a photon will collide with a polygon in 3D space.

    - by Peter
    The problem is straight forward: 1) We have a photon traveling from Point 1 (x,y,z) to Point 2 (x,y,z), both of which could be located anywhere in 3D space. 2) We have a polygon that is both rotated randomly on the x-axis and/or y-axis and also located anywhere in 3D space. 3) We want to find: a) if the photon will collide with the polygon at all and b) if it does where will that be (x,y,z)? An image of the problem: http://dl.dropbox.com/u/3150177/Programming/3D/Math/Photon%20Path/Photon%20Path.png The aim of this is to calculate how the photon's path should be altered from an interaction(s) with the polygon(s). I am reading up on this subject now but I was wondering if anyone could give me a head start. Thanks in advance.

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  • how to use listctrl in notebook wxPython

    - by ???
    I have one question.. wxPython listctrl in notebook I created 2 tab use notebook. I added button in first tab and added Listctrl in second tab. If i click the button, Add value in Listctrl to second tab. how to solve this problem? import wx class PageOne(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) self.query_find_btn = wx.Button(self, 4, "BTN", (40,40)) self.Bind(wx.EVT_BUTTON, self.AddList, id = 4) def AddList(self, evt): self.list1.InsertStringItem(0,'Hello') class PageTwo(wx.Panel): def __init__(self, parent): wx.Panel.__init__(self, parent) self.list1 = wx.ListCtrl(self,-1,wx.Point(0,0),wx.Size(400,400),style=wx.LC_REPORT | wx.SUNKEN_BORDER) self.list1.InsertColumn(0,'values') class MyFrame(wx.Frame): def __init__(self, parent, id, title): wx.Frame.__init__(self,parent,id,title,size=(400,400),pos=wx.Point(100,100), style=wx.SYSTEM_MENU |wx.CAPTION ) p = wx.Panel(self) nb = wx.Notebook(p) MainFrame = PageOne(nb) SecondFrame = PageTwo(nb) nb.AddPage(MainFrame, "One") nb.AddPage(SecondFrame, "Two") sizer = wx.BoxSizer() sizer.Add(nb, 1, wx.EXPAND) p.SetSizer(sizer) class MyApp(wx.App): def OnInit(self): self.frame=MyFrame(None,-1,'Unknown.py') self.frame.Centre() self.frame.Show() return True if __name__ == '__main__': app = MyApp(False) app.MainLoop()

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  • VC++ how to change a picturebox from header file

    - by JimboJones
    HI, Just ran into a problem. How to I change a picturebox's picture from within a different header file. If I do it in the same .h file as the Form I am working on I use: sq1-Image = bi; (which loads in a bitmap) but when I do it from another header (i've included the correct header file), I get "sq1 is an undeclared identifier" and "left of '-image' must point to a class/struct/union/generic" What I'm looking for is something like Form1::sq1-Image = bi; Basically I just want to point the program to change picturebox from another location....Is this possible? How can I do this? Cheers!

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  • "Zoom" text to be as big as possible within constraints/box

    - by stolsvik
    First problem: You have 400 pixels width to go on, and need to fit some text within that constraint as large as possible (thus, the text shall use that amount of space). Throw in a new constraint: If the text is just "A", then it shall not zoom this above 100 pixels (or some specific font size). Then, a final situation: Linebreaks. Fit some text in the largest possible way within e.g. 400 x 150 pixels. An obvious way is to simply start with point 1, and then increase until you can't fit it anymore. This would work for all three problems, but would be very crude. The fitting of a single line within bounds could be done by writing it with some fixed point size, check the resulting pixel bounds of the text, and then simply scale it with a transform (the text scales properly too then, check out TransformUI). Any ideas of other ways to attack this would be greatly appreciated!

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  • App.config settings, environment variable as partial path

    - by Jean-Bernard Pellerin
    I'm new to tinkering with app.config and xml, and am currently doing some refactoring in some code I haven't written. Currently we have a snippet which looks like this: <setting name="FirstSetting" serializeAs="String"> <value>Data Source=C:\Documents and Settings\All Users\ApplicationData\Company ...;Persist Security Info=False</value> What I'd like to do is have it instead point to something like ${PROGRAMDATA}\Company\... How can I achieve this, keeping in mind that PROGRAMDATA will not always point to C:\ProgramData ?

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  • How to Generate Embeddable Widgets, and Return PartialView, JS & CSS as JSONP?

    - by DaveDev
    I found this question which is a great starting point towards creating embedded widgets that enable showing dynamic content on remote sites (i.e. a different domain). One problem I'm having is with the following code: public ActionResult SomeAction() { return new JsonpResult { Data = new { Widget = "some partial html for the widget" } }; } It says Widget = "some partial html for the widget" but this doesn't really mean anything to me. I assume that Widget would contain the HTML representing what the user wants to see on the screen, but How do I get the contents of my Partial View into Widget? Can anyone point me in the right direction? Thanks..

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  • Google MAP API v3: Link markers to an external list

    - by meo
    Given is a database with locations, we feed those tho the google map api and all points are displayed. Now there is a list of this location right next to the google map. How can i link the places in the list to the dots on the map? Like this: http://www.local.ch/en/q/ubs.html I want to light up the point on the map on the list item hover and open the info-box by clicking on the list item. Can anyone point me into the right direction?

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  • SQL Server 2008 - Get Geography From Record

    - by user336786
    Hello, I am new to using the geography types in SQL Server 2008. I have a table in my database called "Location". "Location" has the following columns and types: Location -------- City nvarchar(256) State nvarchar(256) PostalCode nvarchar(25) Latitude decimal(9, 6) Longitude decimal(9, 6) Each Location is related to a Store record in my database. I am trying to find the stores within a 10 mile radius or postal code or city/state that a user enters. To accomplish this, I know that I need to rely on geographies. At this time I have: DECLARE @startingPoint geography; SET @startingPoint=geography::STGeomFromText('POINT(-122.34900 47.65100)', 4326); That gives me the starting point from a hard-coded textual value. However, I do not know how to convert a lat/long from my Location table into a geography instance. How do I convert a lat/long in my database to a geography instance so I can continue to work on my query? Thank you!

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  • Searching pgadmin db and grabbing information?

    - by Bootstrotter
    I'm currently trying to write a script in RoR to go into my PGAdmin database and look at a list of users, THEN ignore users that have an image path but look at users who don't have one and then upload a link of a generic photo into their row. My database looks Something like this: id integer | name | email | image path | 12 Bob [email protected] www.faces.org 81 Sally [email protected] 114 Mark [email protected] www.faces.org How would I start grabbing those users, I only have 103 users right now, but I also need to think about scaling for the future. Here is a starting point. I know this is kind of vague but really all I need is just a starting point. to get into it. Thanks for the information. require 'sqlite3' db = SQlite3 users = users.find([1, 103]) Any help would be great.

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  • Calculating very large exponents in python

    - by miraclesoul
    Dear All, Currently i am simulating my cryptographic scheme to test it. I have developed the code but i am stuck at one point. I am trying to take : g**x where g = 256 bit number x = 256 bit number Python hangs at this point, i have read alot of forums, threads etcc but only come to the conclusion that python hangs, as its hard for it to process such large numbers. any idea how can it be done? any two line piece of code, any library, anything that can be done.(ALSO PLEASE I AM A NEW PYTHON USER AND THIS IS FIRST TIME I DID PROGRAMMING IN IT, SO NO COMPLEX METHODS ...HOPE YOU UNDERSTAND :s)

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  • Objective-c pointer assignment and reassignment dilema

    - by moshe
    Hi, If I do this: 1 NSMutableArray *near = [[NSMutableArray alloc] init]; 2 NSMutableArray *all = [[NSMutableArray alloc] init]; 3 NSMutableArray *current = near; 4 current = all; What happens to near? At line 3, am I setting current to point to the same address as near so that I now have two variables pointing to the same place in memory, or am I setting current to point to the location of near in memory such that I now have this structure: current - near - NSMutableArray The obvious difference would be the value of near at line 4. If the former is happening, near is untouched and still points to its initial place in memory. If the latter is happening,

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  • Drop duplicated axis label in Flex Chart

    - by Sean Chen
    Hi, All. I use LineChart in Flex with horizontal category axis and I need drop duplicated category label on the chart. The data I use are like that: {Product: "C1", Store: "S1", Profit: "1500}, {Product: "C2", Store: "S1", Profit: "1000}, {Product: "C3", Store: "S2", Profit: "800}, {Product: "C4", Store: "S2", Profit: "1200}, {Product: "C5", Store: "S3", Profit: "1800} Beacuse I set horizontalAxis.categoryField = "Store" , the chart show label "S1,S1,S2,S2,S3" on ths axes. However, both C1 and C2 data point group on the second "S1" category (as same as C3,C4 on second S2). If I accept group data point on the same x-poistion, is there any idea to drop duplicated label?

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  • Two parallel line segments intersection

    - by Judarkness
    I know there are many algorithms to verify whether two line segments are intersected. But once they encountered parallel condition, they just tell the user a big "No" and pretend there is no overlap, share end point, or end point collusion. I know I can can calculate the distance between 2 lines segments. If the distance is 0, check the end points located in the other line segments or not. And this means I have to use a lot of if else and && || conditions. This is not difficult, but my question is "Is there a trick( or mathematics) method to calculate this special parallel case?"

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  • Illegal Instruction When Programming C++ on Linux

    - by remagen
    Heyo, My program, which does exactly the same thing every time it runs (moves a point sprite into the distance) will randomly fail with the text on the terminal 'Illegal Instruction'. My googling has found people encountering this when writing assembly which makes sense because assembly throws those kinds of errors. But why would g++ be generating an illegal instruction like this? It's not like I'm compiling for Windows then running on Linux (which even then, as long as both are on x86 shouldn't AFAIK cause an Illegal Instruction). I'll post the main file below. I can't reliably reproduce the error. Although, if I make random changes (add a space here, change a constant there) that force a recompile I can get a binary which will fail with Illegal Instruction every time it is run, until I try setting a break point, which makes the illegal instruction 'dissapear'. :( #include <stdio.h> #include <stdlib.h> #include <GL/gl.h> #include <GL/glu.h> #include <SDL/SDL.h> #include "Screen.h" //Simple SDL wrapper #include "Textures.h" //Simple OpenGL texture wrapper #include "PointSprites.h" //Simple point sprites wrapper double counter = 0; /* Here goes our drawing code */ int drawGLScene() { /* These are to calculate our fps */ static GLint T0 = 0; static GLint Frames = 0; /* Move Left 1.5 Units And Into The Screen 6.0 */ glLoadIdentity(); glTranslatef(0.0f, 0.0f, -6); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); glEnable(GL_POINT_SPRITE_ARB); glTexEnvi(GL_POINT_SPRITE, GL_COORD_REPLACE, GL_TRUE); glBegin( GL_POINTS ); /* Drawing Using Triangles */ glVertex3d(0.0,0.0, 0); glVertex3d(1.0,0.0, 0); glVertex3d(1.0,1.0, counter); glVertex3d(0.0,1.0, 0); glEnd( ); /* Finished Drawing The Triangle */ /* Move Right 3 Units */ /* Draw it to the screen */ SDL_GL_SwapBuffers( ); /* Gather our frames per second */ Frames++; { GLint t = SDL_GetTicks(); if (t - T0 >= 50) { GLfloat seconds = (t - T0) / 1000.0; GLfloat fps = Frames / seconds; printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps); T0 = t; Frames = 0; counter -= .1; } } return 1; } GLuint objectID; int main( int argc, char **argv ) { Screen screen; screen.init(); screen.resize(800,600); LoadBMP("./dist/Debug/GNU-Linux-x86/particle.bmp"); InitPointSprites(); while(true){drawGLScene();} }

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  • How do I remove descendant elements from a jQuery wrapped set?

    - by Bungle
    I'm a little confused about which jQuery method and/or selectors to use when trying to select an element, and then remove certain descendant elements from the wrapped set. For example, given the following HTML: <div id="article"> <div id="inset"> <ul> <li>This is bullet point #1.</li> <li>This is bullet point #2.</li> <li>This is bullet point #3.</li> </ul> </div> <p>This is the first paragraph of the article</p> <p>This is the second paragraph of the article</p> <p>This is the third paragraph of the article</p> </div> I want to select the article: var $article = $('#article'); but then remove <div id="inset"></div> and its descendants from the wrapped set. I tried the following: var $article = $('#article').not('#inset'); but that didn't work, and in retrospect, I think I can see why. I also tried using remove() unsuccessfully. What would be the correct way to do this? Ultimately, I need to set this up in such a way that I can define a configuration array, such as: var selectors = [ { select: '#article', exclude: ['#inset'] } ]; where select defines a single element that contains text content, and exclude is an optional array that defines one or more selectors to disregard text content from. Given the final wrapped set with the excluded elements removed, I would like to be able to call jQuery's text() method to end up with the following text: This is the first paragraph of the article.This is the second paragraph of the article.This is the third paragraph of the article. The configuration array doesn't need to work exactly like that, but it should provide roughly equivalent configuration potential. Thanks for any help you can provide!

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  • rendering a new line in a string (\n) with drawRect

    - by Mrwolfy
    I am trying to render a string with a new line (line break \n), using drawRect. The code below renders the my string as a single line, with no line break, even though I am using the \n character. See the second to last line. UIFont *font = [UIFont fontWithName:@"HelveticaNeue-CondensedBlack" size:fontSize]; CGPoint point = CGPointMake(0,0); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetRGBFillColor(context, 1.0, 1.0, 1.0, 1.0); CGContextSetRGBStrokeColor(context, 0.0, 0.0, 0.0, 1.0); CGContextSetLineWidth(context, 4.0); CGContextSetTextDrawingMode(context, kCGTextFillStroke); CGContextSaveGState(context); [@"test \n test" drawAtPoint:point withFont:font]; CGContextRestoreGState(context);

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  • How to enable indexing of pages with dynamic data?

    - by mithunb
    I have a site that has certain urls that point to pages with permanent data and others that point to dynamic web pages. Google indexes both these regularly. By the time a user finds one of the dynamic content urls, the data on the page has already changed and the user does not find what he was looking for. Further, the dynamic url pages contains links to the permanent urls (which I want Google or any crawler to index). Google crawler controls (webmaster tools) cannot be made to read urls from a page but not index them. Solutions? crawling strategies *system architecture*.

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  • Draw rectangle using Core Graphics with live preview

    - by mikawber
    I'm creating a simple drawing application and would like some help with drawing rectangles based on the user's touch events. I'm able to draw a rectangle using Core Graphics from the point in touchesBegan to the point in touchesEnded. This rectangle is then displayed once the touchesEnded event is fired. However, I would like to be able to do this in a 'live' fashion. Meaning, the rectangle is updated as the user drags their finger. Is this possible? Any help would be greatly appreciated, thank you!

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