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  • Python: unable to inherit from a C extension.

    - by celil
    I am trying to add a few extra methods to a matrix type from the pysparse library. Apart from that I want the new class to behave exactly like the original, so I chose to implement the changes using inheritance. However, when I try from pysparse import spmatrix class ll_mat(spmatrix.ll_mat): pass this results in the following error TypeError: Error when calling the metaclass bases cannot create 'builtin_function_or_method' instances What is this causing this error? Is there a way to use delegation so that my new class behaves exactly the same way as the original?

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  • launching mapview from main activity (button)

    - by arc
    Hi all. Going round in circles here i think. I have an activity called Locate; public class Locate extends Activity { public static String lat; public static String lon; public static String number; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.locate); final Button buttonMaps = (Button) findViewById(R.id.ButtonMaps); buttonMaps.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { Toast.makeText(getBaseContext(), "Button Pressed", Toast.LENGTH_SHORT).show(); try { Intent i = new Intent(getBaseContext(), displayMap.class); i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(i); } catch (ActivityNotFoundException e) { Toast.makeText(getBaseContext(), "Activity Not Found", Toast.LENGTH_SHORT).show(); } }}); // Toast.makeText(getBaseContext(), "lat: " + lat + " long: " + lon + " from: " + testname, Toast.LENGTH_LONG).show(); } If I make the displayMap class into a normal Activity, and just have display a toast message confirming it has loaded - then it works fine. If i do this though; public class displayMap extends MapActivity { /** Called when the activity is first created. */ public void onCreate() { setContentView(R.layout.displaymap); Toast.makeText(getBaseContext(), "Display Map", Toast.LENGTH_SHORT).show(); } @Override protected boolean isRouteDisplayed() { // TODO Auto-generated method stub return false; } } Then as soon as I click the Button, I get a force close. I have the correct 'uses-library' tag in my manifest; <application android:icon="@drawable/icon" android:label="@string/app_name"> <uses-library android:name="com.google.android.maps" /> I don't get what it just force closes everytime i try and load it. If I make this my onClick handler then it will fire up a working googlemaps/default mapview public void onClick(View v) { Toast.makeText(getBaseContext(), "Button Pressed", Toast.LENGTH_SHORT).show(); Uri uri=Uri.parse("geo:"+Locate.lat+","+Locate.lon); StartActivity(new Intent(Intent.ACTION_VIEW, uri)); } But that is not what I am trying to do, I want my own - so that I can add overlays etc to it. But it does prove that the permission are set correctly and that the lib is there. The logcat error when the app FCs is a Unexpected DEX error. Can anyone point in the right direction here?

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  • Wanted: a very simple java RegExp API

    - by itsadok
    I'm tired of writing Pattern p = Pattern.compile(... Matcher m = p.matcher(str); if (m.find()) { ... Over and over again in my code. I was going to write a helper class to make it neater, but I then I wondered: is there a library that tries to provide a simpler facade for Regular Expressions in Java? I'm thinking something in the style of commons-lang and Guava.

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  • Why is my javascript function sometimes "not defined"?

    - by harpo
    Problem: I call my javascript function, and sometimes I get the error 'myFunction is not defined'. But it is defined. For example. I'll occasionally get 'copyArray is not defined' even in this example: function copyArray( pa ) { var la = []; for (var i=0; i < pa.length; i++) la.push( pa[i] ); return la; } Function.prototype.bind = function( po ) { var __method = this; var __args = []; // sometimes errors -- in practice I inline the function as a workaround __args = copyArray( arguments ); return function() { /* bind logic omitted for brevity */ } } As you can see, copyArray is defined right there, so this can't be about the order in which script files load. I've been getting this in situations that are harder to work around, where the calling function is located in another file that should be loaded after the called function. But this was the simplest case I could present, and appears to be the same problem. It doesn't happen 100% of the time, so I do suspect some kind of load-timing-related problem. But I have no idea what. @Hojou: That's part of the problem. The function in which I'm now getting this error is itself my addLoadEvent, which is basically a standard version of the common library function. @James: I understand that, and there is no syntax error in the function. When that is the case, the syntax error is reported as well. In this case, I am getting only the 'not defined' error. @David: The script in this case resides in an external file that is referenced using the normal <script src="file.js"></script> method in the page's head section. @Douglas: Interesting idea, but if this were the case, how could we ever call a user-defined function with confidence? In any event, I tried this and it didn't work. @sk: This technique has been tested across browsers and is basically copied from the prototype library.

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  • Adding simple marker clusterer to google map

    - by take2
    Hi, I'm having problems with adding marker clusterer functionality to my map. What I want is to use custom icon for my markers and every marker has its own info window which I want to be able to edit. I did accomplish that, but now I have problems adding marker clusterer library functionality. I read something about adding markers to array, but I'm not sure what would it exactly mean. Besides, all of the examples with array I have found, don't have info windows and searching through the code I didn't find appropriate way to add them. Here is my code (mostly from Geocodezip.com): <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/src/markerclusterer.js"></script> <style type="text/css"> html, body { height: 100%; } </style> <script type="text/javascript"> //<![CDATA[ var map = null; function initialize() { var myOptions = { zoom: 8, center: new google.maps.LatLng(43.907787,-79.359741), mapTypeControl: true, mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU}, navigationControl: true, mapTypeId: google.maps.MapTypeId.ROADMAP } map = new google.maps.Map(document.getElementById("map_canvas"), myOptions); var mcOptions = {gridSize: 50, maxZoom: 15}; var mc = new MarkerClusterer(map, [], mcOptions); google.maps.event.addListener(map, 'click', function() { infowindow.close(); }); // Add markers to the map // Set up three markers with info windows var point = new google.maps.LatLng(43.65654,-79.90138); var marker1 = createMarker(point,'Abc'); var point = new google.maps.LatLng(43.91892,-78.89231); var marker2 = createMarker(point,'Abc'); var point = new google.maps.LatLng(43.82589,-79.10040); var marker3 = createMarker(point,'Abc'); var markerArray = new Array(marker1, marker2, marker3); mc.addMarkers(markerArray, true); } var infowindow = new google.maps.InfoWindow( { size: new google.maps.Size(150,50) }); function createMarker(latlng, html) { var image = '/321.png'; var contentString = html; var marker = new google.maps.Marker({ position: latlng, map: map, icon: image, zIndex: Math.round(latlng.lat()*-100000)<<5 }); google.maps.event.addListener(marker, 'click', function() { infowindow.setContent(contentString); infowindow.open(map,marker); }); } //]]> </script>

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  • How do I output a webpage that contains MathML to PDF?

    - by samiz
    My web application displays MathML embedded in HTML using the MathPlayer plugin. I need to output to PDF. I have PDF components (Dynamic PDF, ABCpdf), but they don't know how to parse the MathML, of course. Is there a library that can help me translate the MathML to an image or something that I can feed to the PDF components on the fly in the web application?

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  • SFTP in android

    - by Mr. Kakakuwa Bird
    Hi I want to use SFTP in my android project. Can anybody tell me if android [code]already have SFTP library?? Or i have to implement it. If anybody have already done SFTP client in android then please guide me. Thanks in Advance.

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  • How do I sanitize LaTeX input?

    - by Conley Owens
    I'd like to take user input (sometimes this will be large paragraphs) and generate a LaTeX document. I'm considering a couple of simple regular expressions that replaces all instances of "\" with "\textbackslash " and all instances of "{" or "}" with "\}" or "\{". I doubt this is sufficient. What else do I need to do? Note: In case there is a special library made for this, I'm using python.

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  • Hexadecimals in python

    - by ryudice
    I don't know python and I'm porting a library to C#, I've encountered the following lines of code that is used in some I/O operation but I'm not sure what it is, my guess is that it's a hexadecimal but I don't know why it's inside a string, neither what the backslashes do? sep1 = '\x04H\xfe\x13' # record separator sep2 = '\x00\xdd\x01\x0fT\x02\x00\x00\x01' # record separator

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  • java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher

    - by user714698
    log when start the tomcat Apr 28, 2011 10:52:57 AM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\software\jdk1.5.0_06\bin;.;C:\WINDOWS\system32;C:\WINDOWS;D:/software/jdk1.5.0_06/bin/../jre/bin/client;D:/software/jdk1.5.0_06/bin/../jre/bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\TortoiseSVN\bin.;D:\software\jdk1.5.0_06\bin;D:\software\Ant 1.7\bin;D:\software\Axis2-1.5.4\axis2-1.5.4-bin\axis2-1.5.4\bin;C:\Program Files\IDM Computer Solutions\UltraEdit\ Apr 28, 2011 10:52:58 AM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:StrutsHelloWorld' did not find a matching property. Apr 28, 2011 10:52:58 AM org.apache.tomcat.util.digester.SetPropertiesRule begin WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:StrutsHelloWorld1' did not find a matching property. Apr 28, 2011 10:53:00 AM org.apache.coyote.http11.Http11Protocol init INFO: Initializing Coyote HTTP/1.1 on http-8080 Apr 28, 2011 10:53:00 AM org.apache.catalina.startup.Catalina load INFO: Initialization processed in 3657 ms Apr 28, 2011 10:53:00 AM org.apache.catalina.core.StandardService start INFO: Starting service Catalina Apr 28, 2011 10:53:00 AM org.apache.catalina.core.StandardEngine start INFO: Starting Servlet Engine: Apache Tomcat/6.0.32 Apr 28, 2011 10:53:01 AM org.apache.catalina.core.StandardContext filterStart SEVERE: Exception starting filter struts2 java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:269) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4071) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4725) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:754) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Apr 28, 2011 10:53:01 AM org.apache.catalina.core.StandardContext start SEVERE: Error filterStart Apr 28, 2011 10:53:01 AM org.apache.catalina.core.StandardContext start SEVERE: Context [/StrutsHelloWorld1] startup failed due to previous errors log4j:WARN No appenders could be found for logger (com.opensymphony.xwork2.config.providers.XmlConfigurationProvider). log4j:WARN Please initialize the log4j system properly. Apr 28, 2011 10:53:05 AM org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8080 Apr 28, 2011 10:53:05 AM org.apache.jk.common.ChannelSocket init INFO: JK: ajp13 listening on /0.0.0.0:8009 Apr 28, 2011 10:53:05 AM org.apache.jk.server.JkMain start INFO: Jk running ID=0 time=0/46 config=null Apr 28, 2011 10:53:05 AM org.apache.catalina.startup.Catalina start INFO: Server startup in 4951 ms

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  • HTML to Markdown with Java

    - by Sergio del Amo
    is there an easy way to transform HTML into markdown with JAVA? I am currently using the Java MarkdownJ library to transform markdown to html. import com.petebevin.markdown.MarkdownProcessor; ... public static String getHTML(String markdown) { MarkdownProcessor markdown_processor = new MarkdownProcessor(); return markdown_processor.markdown(markdown); } public static String getMarkdown(String html) { /* TODO Ask stackoverflow */ }

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  • C# Custom EventArgs with no constructor?

    - by Motig
    I have a problem; I'm using an external library where one particular event has its own custom eventargs; with no constructor. If I want to throw my own event using these eventargs, how can I? I'll give more detail if asked, but I'm not sure what exactly I should be giving. :)

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  • How to implement Open Flash Chart 2 on Symfony

    - by victmo
    I'm trying to use Open Flash Chart 2 on my symfony project by including the ofc2 library on one of my controller's action. Unfortunately it doesn't work. There is a plugin for this, but it doesn't play with the latest version of OFC. Anyone have had any success showing Open Flash Chart 2 on their site? Thanks in advance, Vic

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  • Ruby Hide Console

    - by Ell
    I am attempting to make a game written in Ruby using the Gosu library (http://www.libgosu.org/) but when I run the game, a console also shows. How do I make sure the console is hidden from the start? thanks in advance, ell

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  • Cannot resolve IHttpHandler

    - by baron
    For some reason when I am trying to create a class which implements IHttpHandler I cannot resolve IHttpHandler. Statements like: using System.Web; are not helping either. This is a class library project, I am following example here: http://www.15seconds.com/issue/020417.htm What am I doing wrong?

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  • Adding Parsekit To An Xcode Project

    - by Garry
    I am trying to add the Parsekit framework to my OSX Xcode project. I've never added a 3rd party framework before and I can't get it to work right. I dragged the included Xcode project into my 'Groups & Files' pane and chose to Add it to my project. I then dragged Parsekit.framework underneath the Link Binary With Libraries heading. Then I double-clicked my target app and added Parsekit as a Direct Dependency. I also added libicucore.dylib as a Linked Library (as it says to do this on their site). Finally, in the Build settings tab of my target info I set the Header Search Paths to /Users/path/to/include/directory and the Other Linker Flags to -ObjC -all_load. Running this as a debug build work fine with no errors. However, when I build my app to release and then try to run the executable created, the app fails to load with the following error message: MyApp cannot be opened because of a problem. Check with the developer to make sure myApp works with this version of Mac OS X. Here is the dump from the crash reporter: Process: MyApp [11658] Path: /Users/Garry/Programming/Xcode/Mac/MyApp/build/Release/MyApp.app/Contents/MacOS/MyApp Identifier: com.yourcompany.MyApp Version: ??? (???) Code Type: X86-64 (Native) Parent Process: launchd [135] Date/Time: 2010-05-24 17:08:08.475 +0100 OS Version: Mac OS X 10.6.3 (10D573) Report Version: 6Interval Since Last Report: 133300 sec Crashes Since Last Report: 3 Per-App Crashes Since Last Report: 3 Anonymous UUID: DF0265E4-B5A0-45E1-8B71-D52A27CFDDCA Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Crashed Thread: 0 Dyld Error Message: Library not loaded: @executable_path/../Frameworks/ParseKit.framework/Versions/A/ParseKit Referenced from: /Users/Garry/Programming/Xcode/Mac/MyApp/build/Release/MyApp.app/Contents/MacOS/MyApp Reason: image not found Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.53 GHz, 4 GB, SMC 1.47f2 Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB Memory Module: global_name AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.10.91.27) Bluetooth: Version 2.3.1f4, 2 service, 2 devices, 1 incoming serial ports Network Service: AirPort, AirPort, en1 Network Service: Ethernet Adaptor (en6), Ethernet, en6 Serial ATA Device: Hitachi HTS545025B9SA02, 232.89 GB Serial ATA Device: HL-DT-ST DVDRW GS23N USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0x24400000 USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0x26500000 USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x04500000 USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0237, 0x04600000 USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8213, 0x06110000 After building the app, in addition to the executable file, Xcode is also creating a file called MyApp.app.dSYM. Any idea what that is?? I am developing with Xcode 3.2.2 on an Intel MBP running 10.6.3. Many thanks for any help offered.

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  • Using MOA to classify new examples?

    - by Sam Zetoloth
    I'm trying to use the java machine learning library MOA to train on a training data stream, then predict classes for a test data stream. The first part works fine, using (for example) java -cp .:moa.jar:weka.jar -javaagent:sizeofag.jar moa.DoTask "LearnModel -l MajorityClass -s (ArffFileStream -f atrain.arff -c -1) -O amodel.moa" But then I cannot figure out how to use the trained model (amodel.moa) on another stream (atest.arff) to predict the classes. Has anyone done this before?

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  • Odd "Object reference not set to an instance of an object" involving xWinForms

    - by Kyle
    Hey, I've been trying to get the xWinForms 3.0 library (a library with forms support in xna) working with my C# XNA Game project but I keep getting the same problem. I add the reference to my project, put in the using statement, declare a formCollection variable and then I try to initialize it. whenever I run the project I get stopped on this line: formCollection = new FormCollection(this.Window, Services, ref graphics); it gives me the error: " System.NullReferenceException was unhandled Message="Object reference not set to an instance of an object." Source="Microsoft.Xna.Framework" StackTrace: at Microsoft.Xna.Framework.Graphics.VertexShader..ctor(GraphicsDevice graphicsDevice, Byte[] shaderCode) at Microsoft.Xna.Framework.Graphics.SpriteBatch.ConstructPlatformData() at Microsoft.Xna.Framework.Graphics.SpriteBatch..ctor(GraphicsDevice graphicsDevice) at xWinFormsLib.FormCollection..ctor(GameWindow window, IServiceProvider services, GraphicsDeviceManager& graphics) at GameSolution.Game2.LoadContent() in C:\Users\Owner\Documents\School\Year 3\Winter\Soen 390\TeamWTF_3\SourceCode\GameSolution\GameSolution\Game2.cs:line 45 at Microsoft.Xna.Framework.Game.Initialize() at GameSolution.Game2.Initialize() in C:\Users\Owner\Documents\School\Year 3\Winter\Soen 390\TeamWTF_3\SourceCode\GameSolution\GameSolution\Game2.cs:line 37 at Microsoft.Xna.Framework.Game.Run() at GameSolution.Program.Main(String[] args) in C:\Users\Owner\Documents\School\Year 3\Winter\Soen 390\TeamWTF_3\SourceCode\GameSolution\GameSolution\Program.cs:line 14 InnerException: " In a project I downloaded that used the xWinForms, I put the following code in and it compiled and ran no error. but when I put it in my project I get the error. Am I making some stupid mistake about including dlls or something? I've been at this for hours and I can't seem to find anything that would cause this. using System; using System.Collections.Generic; using System.Linq; using System.Text; using Microsoft.Xna.Framework; using Microsoft.Xna.Framework.Audio; using Microsoft.Xna.Framework.Content; using Microsoft.Xna.Framework.GamerServices; using Microsoft.Xna.Framework.Graphics; using Microsoft.Xna.Framework.Input; using Microsoft.Xna.Framework.Media; using Microsoft.Xna.Framework.Net; using Microsoft.Xna.Framework.Storage; using xWinFormsLib; namespace GameSolution { public class Game2 : Microsoft.Xna.Framework.Game { GraphicsDeviceManager graphics; SpriteBatch spriteBatch; FormCollection formCollection; public Game2() { graphics = new GraphicsDeviceManager(this); Content.RootDirectory = "Content"; } protected override void Initialize() { // TODO: Add your initialization logic here base.Initialize(); } protected override void LoadContent() { // Create a new SpriteBatch, which can be used to draw textures. spriteBatch = new SpriteBatch(GraphicsDevice); formCollection = new FormCollection(this.Window, Services, ref graphics); } protected override void Update(GameTime gameTime) { base.Update(gameTime); } protected override void Draw(GameTime gameTime) { base.Draw(gameTime); } } } Any help would be greatly appreciated ._.

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  • Motion detection of a specific object in .net

    - by abinop
    I need to make a .net application where I must detect a specific object the user is holding, using a camera. If the object must have some specific characteristics so that it can be easily recognized and detected from the surrounding space, please give me some tips (ex a green cube?) What would be the best technique/.net library to use? I need to translate in realtime the user's hand movement and display an animation on screen accordingly.

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  • Algorithm for dividing very large numbers

    - by pocoa
    I need to write an algorithm(I cannot use any 3rd party library, because this is an assignment) to divide(integer division, floating parts are not important) very large numbers like 100 - 1000 digits. I found http://en.wikipedia.org/wiki/Fourier_division algorithm but I don't know if it's the right way to go. Do you have any suggestions?

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