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  • How to define paper in raphael JS liberary?

    - by cj333
    Hi, I want to learn raphael JS liberary to draw a square. I copied the official code, but it is not work, "paper is not defined on line 34". how to define it? The demo is on http://www.irunmywebsite.com/raphael/additionalhelp.php the left menu "animate" ,Thanks. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Raphaël · Gear</title> <style type="text/css"> body { background: #333; color: #fff; font: 300 100.1% "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif; } #holder { height: 480px; left: 50%; margin: -240px 0 0 -320px; position: absolute; top: 50%; width: 640px; } #copy { bottom: 0; font: 300 .7em "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif; position: absolute; right: 1em; text-align: right; } #copy a { color: #fff; } </style> <script src="raphael-min.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript" charset="utf-8"> var a = paper.circle(320, 100, 60).attr({fill:'#FF0000'}); a.animate({ 'translation': '0,300' }, 500, 'bounce'); var b = paper.circle(320, 100, 60).attr({fill:'#FFFF00'});; b.animate({ cx: 320, cy: 300 }, 500, 'bounce'); var path1=paper.path("M114 253").attr({"stroke": "#f00", "stroke-width":3}); path1.animate({path: "M114 253 L 234 253"},3000,function(){ var path2=paper.path("M234 253").attr({"stroke": "#f00","stroke-width":3}); path2.animate({path: "M234 253 L 234 134"},3000,function(){ var path3=paper.path("M234 134").attr({"stroke": "#f00","stroke-width":3}); path3.animate({path: "M234 134 L 97 134"},3000); }); }); </script> </head> <body> <div id="stroke"></div> </body> </html>

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  • Dynamic inheritance/implementation in PHP 5.*

    - by Rolf
    Hi everyone, I'm implementing a Logger, based on a XML declaration (path to class, method name, custom log message). There is also a Logger interface that defines the function __call, the latter logs what's needed and then relays the call to the target method. The only difficulty is to make each class, declared in the XML file, implement this interface with __call. So finally my question: is there a way to set at runtime the parent class or the implemented interface of another class ? Thanks in advance ! Rolf

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  • c++ class member functions selected by traits

    - by Jive Dadson
    I am reluctant to say I can't figure this out, but I can't figure this out. I've googled and searched stackoverflow, and come up empty. The abstract, and possibly overly vague form of the question is, how can I use the traits-pattern to instantiate non-virtual member functions? The question came up while modernizing a set of multivariate function optimizers that I wrote more than 10 years ago. The optimizers all operate by selecting a straight-line path through the parameter space away from the current best point (the "update"), then finding a better point on that line (the "line search"), then testing for the "done" condition, and if not done, iterating. There are different methods for doing the update, the line-search, and conceivably for the done test, and other things. Mix and match. Different update formulae require different state-variable data. For example, the LMQN update requires a vector, and the BFGS update requires a matrix. If evaluating gradients is cheap, the line-search should do so. If not, it should use function evaluations only. Some methods require more accurate line-searches than others. Those are just some examples. The original version instatiates several of the combinations by means of virtual functions. Some traits are selected by setting mode bits. Yuck. It would be trivial to define the traits with #define's and the member functions with #ifdef's and macros. But that's so twenty years ago. It bugs me that I cannot figure out a whiz-bang modern way. If there were only one trait that varied, I could use the curiously recurring template pattern. But I see no way to extend that to arbitrary combinations of traits. I tried doing it using boost::enable_if, etc.. The specialized state info was easy. I managed to get the functions done, but only by resorting to non-friend external functions that have the this-pointer as a parameter. I never even figured out how to make the functions friends, much less member functions. Perhaps tag-dispatch is the key. I haven't gotten very deeply into that. Surely it's possible, right? If so, what is best practice?

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  • Define data members within constructor

    - by bertsisterwanda
    I have got this little snippet of code, I want to be able to define each array element as a new data member. class Core_User { protected $data_memebers = array( 'id' = '%d', 'email' = '"%s"', 'password' = '"%s"', 'title' = '"%s"', 'first_name' = '"%s"', 'last_name' = '"%s"', 'time_added' = '%d' , 'time_modified' = '%d' , ); function __construct($id = 0, $data = NULL) { foreach($data_memebers as $member){ //protected new data member } }

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  • Splitting input into substrings in PIG (Hadoop)

    - by Niels Basjes
    Assume I have the following input in Pig: some And I would like to convert that into: s so som some I've not (yet) found a way to iterate over a chararray in pig latin. I have found the TOKENIZE function but that splits on word boundries. So can "pig latin" do this or is this something that requires a Java class to do that?

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  • Optimising speeds in HDF5 using Pytables

    - by Sree Aurovindh
    The problem is with respect to the writing speed of the computer (10 * 32 bit machine) and the postgresql query performance.I will explain the scenario in detail. I have data about 80 Gb (along with approprite database indexes in place). I am trying to read it from Postgresql database and writing it into HDF5 using Pytables.I have 1 table and 5 variable arrays in one hdf5 file.The implementation of Hdf5 is not multithreaded or enabled for symmetric multi processing.I have rented about 10 computers for a day and trying to write them inorder to speed up my data handling. As for as the postgresql table is concerned the overall record size is 140 million and I have 5 primary- foreign key referring tables.I am not using joins as it is not scalable So for a single lookup i do 6 lookup without joins and write them into hdf5 format. For each lookup i do 6 inserts into each of the table and its corresponding arrays. The queries are really simple select * from x.train where tr_id=1 (primary key & indexed) select q_t from x.qt where q_id=2 (non-primary key but indexed) (similarly five queries) Each computer writes two hdf5 files and hence the total count comes around 20 files. Some Calculations and statistics: Total number of records : 14,37,00,000 Total number of records per file : 143700000/20 =71,85,000 The total number of records in each file : 71,85,000 * 5 = 3,59,25,000 Current Postgresql database config : My current Machine : 8GB RAM with i7 2nd generation Processor. I made changes to the following to postgresql configuration file : shared_buffers : 2 GB effective_cache_size : 4 GB Note on current performance: I have run it for about ten hours and the performance is as follows: The total number of records written for each file is about 6,21,000 * 5 = 31,05,000 The bottle neck is that i can only rent it for 10 hours per day (overnight) and if it processes in this speed it will take about 11 days which is too high for my experiments. Please suggest me on how to improve. Questions: 1. Should i use Symmetric multi processing on those desktops(it has 2 cores with about 2 GB of RAM).In that case what is suggested or prefereable? 2. If i change my postgresql configuration file and increase the RAM will it enhance my process. 3. Should i use multi threading.. In that case any links or pointers would be of great help Thanks Sree aurovindh V

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  • Bizarre Son of Suckerfish ie6/ie7 problem - 2 letters from right-most dropdown menu also appearing o

    - by Kevin Burke
    I'm interning for an NGO in India and trying to fix their website, including updating their menu so it's not the last item on the page to load, and it's centered on the screen. Everything works well enough but when I try out my new menu in IE6, I get this weird error where the content below the menu is padded an extra 30px or so and the material in the right-most drop down appears on the far left of the screen, always visible. When I drop down the rightmost link ("Publications") the content appears both in the correct location and in the same spot on the far left of the screen, and changes color when I hover as well. It's tough to describe, so it would probably be best if you took a look: visit http://sevamandir.org/a30/aboutus.htm in your IE6/IE7 browser to see for yourself. I really appreciate your help. Also I'm using a 1000px wide monitor, if there's more hijinks going on outside that space I'd like to know about that too. I took a look at the problem again and it's even weirder than I thought. Only two letters of the bottom-most drop down menu item are shown, no matter how many items are in the left-most drop down menu. When I delete the left-most drop down menu, the bottom item from the next left-most item shows up in the same space. The padding between the menu and the content is always the same. When I hover over the real menu item, the two letters on the left hand side change color to match the hover color. Unfortunately many people that visit our website are using old browsers so IE6 support is pretty crucial, this problem is really weird though, and I would appreciate some help. I uploaded a file with the entire style.css sheet in the and HTML code below, at http://sevamandir.org/a30/aboutus.htm. Here's the relevant code: in the html head: <script> sfHover = function() { var sfEls = document.getElementById("nav").getElementsByTagName("LI"); for (var i=0; i<sfEls.length; i++) { sfEls[i].onmouseover=function() { this.className+=" sfhover"; } sfEls[i].onmouseout=function() { this.className=this.className.replace(new RegExp(" sfhover\\b"), ""); } } } if (window.attachEvent) window.attachEvent("onload", sfHover); </script> text surrounding the menu - the menu is simply <ul id="nav"><li></li></ul> etc. <!--begin catchphrase--> <div style="float:left; height:27px; width:520px; margin:0px; font:16px Arial, Helvetica, sans-serif; font-weight:bold; color:#769841;"> Transforming lives through democratic &amp; participatory development </div> <?php include("menu.php"); ?> </div><!-- end header --> <!--begin main text div--> <div id="maincontent"> Relevant menu CSS: #nav, #nav ul { font:bold 11px Verdana, sans-serif; float: left; width: 980px; list-style: none; line-height: 1; background: white; font-weight: bold; padding: 0; border: solid #769841; border-width: 0; margin: 0 0 1em 0; } #nav a { display: block; width: 140px; /*this is the total width of the upper menu*/ w\idth: 120px; /*this is the width less horizontal padding */ padding: 5px 10px 5px 10px; /*horiz padding is the 2nd & 4th items here - goes Top Right Bottom Left */ color: #ffffff; background:#b6791e; text-decoration: none; } #nav a.daddy { background: url(rightarrow2.gif) center right no-repeat; } #nav li { float: left; padding: 0; width: 140px; /*this needs to be updated to match top #nav a */ background:#b6791e; } #nav li:hover, #nav li a:hover, #nav li:hover a { background:#769841; } #nav li:hover li a { background:#ffffff; color:#769841; } #nav li ul { position: absolute; left: -999em; height: auto; width: 14.4em; w\idth: 13.9em; font-weight: bold; border-width: 0.25em; /*green border around dropdown menu*/ margin: 0; } #nav li ul a { background:#ffffff; color:#769841; } #nav li li { padding-right: 1em; width: 13em; background:#ffffff; } #nav li ul a { width: 13em; w\idth: 9em; } #nav li ul ul { margin: -1.75em 0 0 14em; } #nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfhover ul ul, #nav li.sfhover ul ul ul { left: -999em; } #nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfhover ul, #nav li li.sfhover ul, #nav li li li.sfhover ul { left: auto; } #nav li:hover, #nav li.sfhover, { background: #769841; color:#ffe400; } #nav li a:hover, #nav li li a:hover, #nav li:hover li:hover, #nav li.sfhover a:hover { background: #769841; color:#ffe400; }

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  • Problem with jquery-droppable in Chrome

    - by ripper234
    I have a simple application that users jquery-ui's draggable and droppable. In Firefox, it works perfectly. In Chrome, however, I'm having problems. This is the code: $(".cell").droppable({ drop: function(event, ui) { var originalTarget = event.originalTarget; ... } }); In Chrome the 'event' object is of type 'Object' (using Chrome Dev Kit), and event.originalTarget is 'undefined'. What am I doing wrong?

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  • Me As Child Type

    - by Steven
    I have a MustInherit Parent class with two Child classes which Inherit from the Parent. How can I use (or Cast) Me in a Parent function as the the child type of that instance? EDIT: My actual goal is to be able to serialize (BinaryFormatter.Serialize(Stream, Object)) either of my child classes. However, "repeating the code" in each child "seems" wrong.

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  • Handles and pointer to object

    - by Tony
    I have a python Interpreter written in C++, the PyRun_String function from the Python API is said to return a handle, however in my code I have it assigned to pointer to a PyObject? PyObject* presult = PyRun_String(code, parse_mode, dict, dict); Is this actually correct? Can you implicitly cast this handle to this object pointer? Should it not be a HANDLE instead?

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  • How do I destruct data associated with an object after the object no longer exists?

    - by Phineas
    I'm creating a class (say, C) that associates data (say, D) with an object (say, O). When O is destructed, O will notify C that it soon will no longer exist :( ... Later, when C feels it is the right time, C will let go of what belonged to O, namely D. If D can be any type of object, what's the best way for C to be able to execute "delete D;"? And what if D is an array of objects? My solution is to have D derive from a base class that C has knowledge of. When the time comes, C calls delete on a pointer to the base class. I've also considered storing void pointers and calling delete, but I found out that's undefined behavior and doesn't call D's destructor. I considered that templates could be a novel solution, but I couldn't work that idea out. Here's what I have so far for C, minus some details: // This class is C in the above description. There may be many instances of C. class Context { public: // D will inherit from this class class Data { public: virtual ~Data() {} }; Context(); ~Context(); // Associates an owner (O) with its data (D) void add(const void* owner, Data* data); // O calls this when he knows its the end (O's destructor). // All instances of C are now aware that O is gone and its time to get rid // of all associated instances of D. static void purge (const void* owner); // This is called periodically in the application. It checks whether // O has called purge, and calls "delete D;" void refresh(); // Side note: sometimes O needs access to D Data *get (const void *owner); private: // Used for mapping owners (O) to data (D) std::map _data; }; // Here's an example of O class Mesh { public: ~Mesh() { Context::purge(this); } void init(Context& c) const { Data* data = new Data; // GL initialization here c.add(this, new Data); } void render(Context& c) const { Data* data = c.get(this); } private: // And here's an example of D struct Data : public Context::Data { ~Data() { glDeleteBuffers(1, &vbo); glDeleteTextures(1, &texture); } GLint vbo; GLint texture; }; }; P.S. If you're familiar with computer graphics and VR, I'm creating a class that separates an object's per-context data (e.g. OpenGL VBO IDs) from its per-application data (e.g. an array of vertices) and frees the per-context data at the appropriate time (when the matching rendering context is current).

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  • Divs over images using JavaScript

    - by Abhi
    Say I have an image with a couple of dots in a web page. When someone clicks on the dots I want a JavaScript function to be executed and then a div placed over the clicked dot in the image. Something akin to markers in maps. How do I go about doing this?

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  • Google maps kml layer

    - by TiagoMartins
    Hi, my code is: var ctaLayer = new google.maps.KmlLayer( 'http://.../per1.kml', {suppressInfoWindows: true}); ctaLayer.setMap(map); var info_percurso = new google.maps.InfoWindow({ content: 'hi' }); google.maps.event.addListener(ctaLayer, 'click', function() { info_percurso.open(map,ctaLayer); alert("dd"); }); this is possible? this code doesn't work...but the operation is possible? I need to create my own infoWindow for database queries

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  • JQuery fadeIn after src changed but fadeIn on the previous src anyway !

    - by Anna
    Hello ! I have a jquery bug and I've been looking for hours now, I can't figure out what's wrong... I have this code : $(document).ready(function(){ $('#ulPhotos a').click(function() { var newSrc= $(this).find('img').attr('src').split("/"); bigPictureName = 'big'+newSrc[2]; $('#pho').hide(); $('#imageBig').attr("src", "images/photos/"+bigPictureName); $('#pho').fadeIn('slow'); var alt = $(this).find('img').attr('alt'); $('#legend').html(alt); }); }); and this in html : <ul id="ulPhotos"> <li><a href="#centre"><img src="images/photos/09.jpg" title="La Reine de la Nuit au Comedia" alt="<em>La Reine de la Nuit</em> au Comedia"/></a> <a href="#centre"><img src="images/photos/03.jpg" title="Manuelita, La Périchole à l&rsquo;Opéra Comique" alt="Manuelita, <em>La Périchole</em> à l&#8217;Opéra Comique" /></a></li> <li><a href="#centre" ><img src="images/photos/12.png" title="" alt="Marion Baglan Carnac Ré" /></a> and this in for bigImage : </div> <div id="pho" a name="centre"> <p id="legend"> La Reine de la Nuit</p> <img src="images/photos/big09.jpg" alt="Marion Baglan" id="imageBig"/> </div> It simply changes the source of my img in a div named pho... but sometimes when the new image is too heavy, the fadeIn executes on the previous src !! so we see the fadeIn first on the previous image, and then, the right picture appears without fadeIn.... am I missing something? ps : the page is here http://www.marion-baglan.net/photos.htm#centre if you click fast you can see it... and when I try to put some bigger photos, it's very obvious...

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  • AudioQueue on iPhone

    - by Sridhar
    Hi, Is there anyway to record the sound in slow manner using AudioQueues in Iphone(may be in call back function ?). Currently I am recording in Linear PCM with 22050 Hz. Basically I want to adjust the audio samples to match my video frame rate (which is 10 FPS). Thanks

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  • Initialize static members in PHP

    - by Senthil
    class Person { public static function ShowQualification() { } } class School { public static $Headmaster = new Person(); // NetBeans complains about this line } Why is this not possible? I want to be able to use this like School::Headmaster::ShowQualification(); ..without instantiating any class. How can I do it?

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  • jQuery selectors - parental problems

    - by aressidi
    Hi there, I have an emote selector that opens up when a user clicks an entry in a diary. The way I've worked it is that the emote selector panel lives hidden at the top of the page. When a user clicks on the 'emote control' associated with an entry, I use JavaScript to grab the HTML of the emote selector panel from the top of the page and insert it next to the entry. Using Firebug, here's what the finished product would look like in the page (snippet from element inspect). I'm trying to get the ID for the class 'emote-control-container' which contains the entry id: <td> <div id="1467002" class="emote-select emote-default">&nbsp;</div> <div class="emote-control-container" id="emote-controls-1467002"> <div id="emote-control-selector"> <div id="emote-control-selector-body"> <ul> <li id="emote-1"><img src="/images/default_emote.gif?1276134900" class="emote-image" alt="Default_emote"></li> <li id="emote-2"><img src="/images/default_emote.gif?1276134900" class="emote-image" alt="Default_emote"></li> <li id="emote-3"><img src="/images/default_emote.gif?1276134900" class="emote-image" alt="Default_emote"></li> <li id="emote-4"><img src="/images/default_emote.gif?1276134900" class="emote-image" alt="Default_emote"></li> </ul> </div> <div id="emote-control-selector-footer"> &nbsp; </div> </div> </div> </td> I need the entry ID along with the emote ID to make a post via AJAX when a user selects an emote from the selector panel by clicking on it. I'm able to get the emote ID just fine with this, which I'm using to alert-out the selected emote ID: jQuery('li').live('click', function(e) { e.preventDefault; var emoteId = this.id; alert(emoteId); }); I'm having trouble traversing up DOM to get the element ID from '.emote-control-container. I've tried everything, but I'd expect this to work, but it doesn't: jQuery('li').live('click', function(e) { e.preventDefault; var entryId = jQuery(this.id).parent(".emote-control-container").attr("id"); alert(entryId); }); What am I doing wrong.? I can't target the ID of the .emote-control-container.

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  • How to assign class property as display data member in datagridview

    - by KoolKabin
    hi guys, I am trying to display my data in datagridview. I created a class with different property and used its list as the datasource. it worked fine. but I got confused how to do that in case we have nested class. My Classes are as follows: class Category property UIN as integer property Name as string end class class item property uin as integer property name as string property mycategory as category end class my data list as follows: dim myDataList as list(of Item) = new List(of Item) myDataList.Add(new Item(1,"item1",new category(1,"cat1"))) myDataList.Add(new Item(2,"item2",new category(1,"cat1"))) myDataList.Add(new Item(3,"item3",new category(1,"cat1"))) myDataList.Add(new Item(4,"item4",new category(2,"cat2"))) myDataList.Add(new Item(5,"item5",new category(2,"cat2"))) myDataList.Add(new Item(6,"item6",new category(2,"cat2"))) Now I binded the datagridview control like: DGVMain.AutoGenerateColumns = False DGVMain.ColumnCount = 3 DGVMain.Columns(0).DataPropertyName = "UIN" DGVMain.Columns(0).HeaderText = "ID" DGVMain.Columns(1).DataPropertyName = "Name" DGVMain.Columns(1).HeaderText = "Name" DGVMain.Columns(2).DataPropertyName = "" **'here i want my category name** DGVMain.Columns(2).HeaderText = "category" DGVMain.datasource = myDataList DGVMain.refresh() I have tried using mycategory.name but it didn't worked. What can be done to get expected result? Is there any better idea other than this to accomplish the same task? Edited My question as per comment: I have checked the link given by u. It was nice n very usefull. Since the code was in c# i tried to convert it in vb. Everything went good but failed at a point of case sensitive and next one is that i had my nested class name itemcategory and my property name was category. there it arouse the problem. it didn't searched for category but it searched for itemcategory. so confused on it. My Code as follows: Private Sub DGVMain_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DGVMain.CellFormatting Dim DGVMain As DataGridView = CType(sender, DataGridView) e.Value = EvaluateValue(DGVMain.Rows(e.RowIndex).DataBoundItem, DGVMain.Columns(e.ColumnIndex).DataPropertyName) End Sub Private Function EvaluateValue(ByRef myObj As Object, ByRef myProp As String) As String Dim Ret As String = "" Dim Props As System.Reflection.PropertyInfo() Dim PropA As System.Reflection.PropertyInfo Dim ObjA As Object If myProp.Contains(".") Then myProp = myProp.Substring(0, myProp.IndexOf(".")) Props = myObj.GetType().GetProperties() For Each PropA In Props ObjA = PropA.GetValue(myObj, New Object() {}) If ObjA.GetType().Name = myProp Then Ret = EvaluateValue(ObjA, myProp.Substring(myProp.IndexOf(".") + 1)) Exit For End If Next Else PropA = myObj.GetType().GetProperty(myProp) Ret = PropA.GetValue(myObj, New Object() {}).ToString() End If Return Ret End Function

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  • How do I step through and debug a Scheme program using Dr. Racket?

    - by Thomas Owens
    I'm using the Dr. Racket development environment and the language definition #lang scheme to do work for a course. However, I'm not sure how to best use this tool for debugging. I would like to be able to execute a function and step through it, observing the values of different functions at various points in execution. Is this possible? If not, what is the typical method of stepping through the execution of a Scheme program and debugging it?

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