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  • Java: Netbeans debugging session works faster than normal run

    - by Martijn Courteaux
    Hello, I'm making Braid in Netbeans 6.7.1. Computer Spec: Windows 7 Running processes: 46 Running threads: +/- 650 NVidia GeForce 9200M GS Intel Core 2 Duo CPU P8400 @ 2.26Ghz Game-spec with normal run: Memory: between 80 MB and 110 MB CPU: between 9% and 20% CPU when time rewinding: 90% The same values for the debugging session, except when I rewind the time: CPU: 20%. Is there any reason for? Is there a way to reach the same performance with a normal run. This is my repaint code: @Override public void repaint() { BufferStrategy bs = getBufferStrategy(); // numBuffers: 4 Graphics g = bs.getDrawGraphics(); g.setColor(Color.BLACK); g.fillRect(-1, -1, 2000, 2000); gamePanel.paint(g.create(x, y, gameDim.width, gameDim.height)); bs.show(); g.dispose(); Toolkit.getDefaultToolkit().sync(); update(g); } The game runs in fullscreen (undecorated + frame.size = screensize) Martijn

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  • Is there a general concrete implementation of a KeyedCollection?

    - by CodeSavvyGeek
    The System.Collections.ObjectModel.KeyedCollection class is a very useful alternative to System.Collections.Generic.Dictionary, especially when the key data is part of the object being stored or you want to be able to enumerate the items in order. Unfortunately, the class is abstract, and I am unable to find a general concrete implementation in the core .NET framework. The Framework Design Guidlines book indicates that a concrete implementation should be provided for abstract types (section 4.4 Abstract Class Design). Why would the framework designers leave out a general concrete implementation of such a useful class, especially when it could be provided by simply exposing a constructor that accepts and stores a Converter from the item to its key: public class ConcreteKeyedCollection : KeyedCollection { private Converter getKeyForItem = null; public GenericKeyedCollection(Converter getKeyForItem) { if (getKeyForItem == null) { throw new ArgumentNullException("getKeyForItem"); } this.getKeyForItem = getKeyForItem; } protected override TKey GetKeyForItem(TItem item) { return this.getKeyForItem(item); } }

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  • Logging with log4j on tomcat jruby-rack for a Rails 3 application

    - by John
    I just spent the better part of 3 hours trying to get my Rails application logging with Log4j. I've finally got it working, but I'm not sure if what I did is correct. I tried various methods to no avail until my various last attempt. So I'm really looking for some validation here, perhaps some pointers and tips as well -- anything would be appreciated to be honest. I've summarized all my feeble methods into three attempts below. I'm hoping for some enlightenment on where I went wrong with each attempt -- even if it means I get ripped up. Thanks for the help in advance! System Specs Rails 3.0 Windows Server 2008 Log4j 1.2 Tomact 6.0.29 Java 6 Attempt 1 - Configured Tomcat to Use Log4J I basically followed the guide on the Apache Tomcat website here. The steps are: Create a log4j.properties file in $CATALINA_HOME/lib Download and copy the log4j-x.y.z.jar into $CATALINA_HOME/lib Replace $CATALINA_HOME/bin/tomcat-juli.jar with the tomcat-juli.jar from the Apache Tomcat Extras folder Copy tomcat-juli-adapters.jar from the Apache Tomcat Extras folder into $CATALINA_HOME/lib Delete $CATALINA_BASE/conf/logging.properties Start Tomcat (as a service) Expected Results According to the Guide I should have seen a tomcat.log file in my $CATALINA_BASE/logs folder. Actual Results No tomcat.log Saw three of the standard logs instead jakarta_service_20101231.log stderr_20101231.log stdout_20101231.log Question Shouldn't I have at least seen a tomcat.log file? Attempt 2 - Use default Tomcat logging (commons-logging) Reverted all the changes from the previous setup Modified $CATALINA_BASE/conf/logging.properties by doing the following: Adding a setting for my application in the handlers line: 5rails3.org.apache.juli.FileHandler Adding Handler specific properties 5rails3.org.apache.juli.FileHandler.level = FINE 5rails3.org.apache.juli.FileHandler.directory = ${catalina.base}/logs 5rails3.org.apache.juli.FileHandler.prefix = rails3. Adding Facility specific properties org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/rails3].level = INFO org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/rails3].handlers = 4host-manager.org.apache.juli.FileHandler Modified my web.xml by adding the following context parameter as per the Logging section of the jruby-rack readme (I also modified my warbler.rb accordingly, but I did opted to change the web.xml directly to test things faster). <context-param> <param-name>jruby.rack.logging</param-name> <param-value>commons_logging</param-value> </context-param> Restarted Tomcat Results A log file was created (rails3.log), however there was no log information in the file. Attempt 2A - Use Log4j with existing set up I decided to go Log4j another whirl with this new web.xml setting. Copied the log4j.jar into my WEB-INF/lib folder Created a log4j.properties file and put it into WEB-INF/classes log4j.rootLogger=INFO, R log4j.logger.javax.servlet=DEBUG log4j.appender.R=org.apache.log4j.RollingFileAppender log4j.appender.R.File=${catalina.base}/logs/rails3.log log4j.appender.R.MaxFileSize=5036KB log4j.appender.R.MaxBackupIndex=4 log4j.appender.R.layout=org.apache.log4j.PatternLayout log4j.appender.R.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss} [%t] %-5p %c %x - %m%n Restarted Tomcat Results Same as Attempt 2 NOTE: I used log4j.logger.javax.servlet=DEBUG because I read in the jruby-rack README that all logging output is automatically redirected to the javax.servlet.ServletContext#log method. So I though this would capture it. I was obviously wrong. Question Why didn't this work? Isn't Log4J using the commons_logging API? Attempt 3 - Tried out slf4j (WORKED) A bit uncertain as to why Attempt 2A didn't work, I thought to myself, maybe I can't use commons_logging for the jruby.rack.logging parameter because it's probably not using commons_logging API... (but I was still not sure). I saw slf4j as an option. I have never heard of it and by stroke of luck, I decided to look up what it is. After reading briefly about what it does, I thought it was good of a shot as any and decided to try it out following the instructions here. Continuing from the setup of Attempt 2A: Copied slf4j-api-1.6.1.jar and slf4j-simple-1.6.1.jar into my WEB-INF/lib folder I also copied slf4j-log4j12-1.6.1.jar into my WEB-INF/lib folder Restarted Tomcat And VIOLA! I now have logging information going into my rails3.log file. So the big question is: WTF? Even though logging seems to be working now, I'm really not sure if I did this right. So like I said earlier, I'm really looking for some validation more or less. I'd also appreciate any pointers/tips/advice if you have any. Thanks!

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  • more details in Jboss console ?

    - by worldpython
    Dear all, I am new to JBOSS 4.2. when I start the server on CentOS 5.4(final). it give me simple log in its console. How I can show deployment errors, messages that wars print in Jboss log ? Thanks in advance 15:46:24,207 INFO [Server] Server Log Dir: /home/mebada/jad/jboss-4.2.3.GA/server /nops01/log 15:46:24,207 INFO [Server] Server Temp Dir: /home/mebada/jad/jboss-4.2.3.GA/server /nops01/tmp 15:46:24,208 INFO [Server] Root Deployment Filename: jboss-service.xml 15:46:25,849 INFO [ServerInfo] Java version: 1.6.0,Sun Microsystems Inc. 15:46:25,849 INFO [ServerInfo] Java VM: OpenJDK Client VM 1.6.0-b09,Sun Microsystems Inc. 15:46:25,849 INFO [ServerInfo] OS-System: Linux 2.6.18-164.el5,i386 15:46:26,674 INFO [Server] Core system initialized 15:46:41,567 INFO [WebService] Using RMI server codebase: http://127.0.0.1:8083/ 15:46:41,569 INFO [Log4jService$URLWatchTimerTask] Configuring from URL: resource:jboss-log4j.xml

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  • How do I write to a file and print to a terminal cuncurrently in Unix?

    - by bias
    I have a little bash function to log my Macports outputs to a file (since installs often spew little tidbits that are easy to lose in terminal noise), then I just cat the file to the terminal: function porti { command sudo port install $@ >> $1.log 2>&1; cat $1.log } Is there a way to do this concurrently? I don't care about it being in Bash, that's just how I started it. BTW I pass $@ to install but only $1 for the file name so that I can do something like: porti git-gore +bash_completion and only get the file git-core.log however someone else might prefer to include variants in the file name ...

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  • Target .Net Framework 4 in t4 templates

    - by HeavyWave
    We have a template that goes like this <#@ template language="C#v3.5" #> <#@ assembly name="System.dll" #> <#@ assembly name="System.Core.dll" #> <#@ assembly name="System.Data.Linq.dll" #> It compiles and runs on .Net 3.5, but after we have switched to .Net 4 the template has stopped working, so I've tried using answer from here, but I get errors like this Error 99 Compiling transformation: Metadata file 'System.Data.Linq.dll' could not be found How do I correctly modify the template to run on .Net Framework 4?

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  • Are we in a functional programming fad?

    - by TraumaPony
    I use both functional and imperative languages daily, and it's rather amusing to see the surge of adoption of functional languages from both sides of the fence. It strikes me, however, that it looks rather like a fad. Do you think that it's a fad? I know the reasons for using functional languages at times and imperative languages in others, but do you really think that this trend will continue due to the cliched "many-core" revolution that has been only "18 months from now" since 2004 (sort of like communism's Radiant Future), or do you think that it's only temporary; a fascination of the mainstream developer that will be quickly replaced by the next shiny idea, like Web 3.0 or GPGPU? Note, that I'm not trying to start a flamewar or anything (sorry if it sounds bitter), I'm just curious as to whether people will think functional or functional/imperative languages will become mainstream. Edit: By mainstream, I mean, equal number of programmers to say, Python, Java, C#, etc

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  • Nant task sysinfo verbose - fails

    - by Broken Link
    Nant.core.dll : 0.86.2898.0 I can not get the following tag working on my machine. <sysinfo verbose="true" /> <sysinfo /> It gives me the following error. If I comment out those two lines I'm able to build. I google'd but not much help. Any idea? NAnt 0.85 (Build 0.85.1932.0; rc3; 4/16/2005) Copyright (C) 2001-2005 Gerry Shaw http://nant.sourceforge.net Buildfile: file:///C:/xyz/source/Default.build Target framework: Microsoft .NET Framework 1.1 Target(s) specified: all [tstamp] Thursday, July 30, 2009 3:10:24 PM. [sysinfo] Setting system information properties under sys.* BUILD FAILED Property name 'sys.env.Zen Managed Workstation' is invalid. Total time: 0 seconds.

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  • Appengine not liking my .jspx files

    - by Hans Westerbeek
    I have a little app that runs fine on local dev appengine, but appengine itself is not processing my .jspx files. The jspx files are in WEB-INF so they should not be excluded by appengine (as a static resource) I am using Apache Tiles to define my views. So the html produced looks like this: <html xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:c="http://java.sun.com/jsp/jstl/core" xmlns:tiles="http://tiles.apache.org/tags-tiles" > <jsp:output omit-xml-declaration="yes"/> <jsp:directive.page contentType="text/html;charset=UTF-8" /> <jsp:directive.page isELIgnored="false"/> (etc etc) How can I solve this problem?

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  • What is the typical setup for a laptop used for multi platform development?

    - by iama
    I am planning to build a new laptop for development for both Windows & Linux platforms. On Windows, my development would be primarily on .NET/C#/IIS/MSSQL Server. On Linux, preferably Ubuntu, my development would be on Ruby and Python. I am thinking of buying a laptop with Windows 7 pre-installed with 4GB RAM/Intel Core 2 Duo/320 GB HD & then thinking of running 2 VMs for both Windows and Linux development with the host OS as my work station. Of course, I would be running DBs and web servers on the respective platforms. Is this a typical setup? My only concern is running two VMs side by side. Not sure if this configuration would be optimal. Alternative would be to do my Windows development on the host Windows 7 OS. Any thoughts?

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  • leiningen: missing super-pom

    - by Arthur Ulfeldt
    if I enable eith the clojure-couchdb or swank-clojure then lein deps fails because org.apache.maven:super-pom:jar:2.0 is missing :dependencies [[org.clojure/clojure "1.1.0-master-SNAPSHOT"] [org.clojure/clojure-contrib "1.0-SNAPSHOT"] [clojure-http-client "1.0.0-SNAPSHOT"] [org.apache.activemq/activemq-core "5.3.0"] ; [org.clojars.the-kenny/clojure-couchdb "0.1.3"] ; [org.clojure/swank-clojure "1.1.0"] ]) this error: Path to dependency: 1) org.apache.maven:super-pom:jar:2.0 2) org.clojure:swank-clojure:jar:1.1.0 ---------- 1 required artifact is missing. for artifact: org.apache.maven:super-pom:jar:2.0 from the specified remote repositories: clojars (http://clojars.org/repo/), clojure-snapshots (http://build.clojure.org/snapshots), central (http://repo1.maven.org/maven2) what is super-pom. why do these packages need it and where can I get it.

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  • Multiple complete HTTP requests stuck in TCP CLOSE_WAIT state

    - by Sean Owen
    I have a Java and Tomcat-based server application which initiates many outbound HTTP requests to other web sites. We use Jakarta's HTTP Core/Client libraries, very latest versions. The server locks up at some point since all its worker threads are stuck trying to close completed HTTP connections. Using 'lsof' reveals a bunch of sockets stuck in TCP CLOSE_WAIT state. This doesn't happen for all, or even most connections. In fact, I saw it before and resolved it by making sure to set the Connection: Close response header. So that makes me think it may be bad behavior of remote servers. It may have come up again since I moved the app to a totally new service provider -- different OS, network situation. But, I am still at a loss as to what I could do, if anything, to work around this. Some poking around on the internet didn't turn up anything I'm not already doing. Just thought I'd ask if anyone has seen and solved this?

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  • WxPython Incompatible With Snow Leopard?

    - by Alex
    Hello all, Recently I upgraded to Snow Leopard, and now I can't run programs built with wxPython. The errors I get are (from Eclipse + PyDev): import wx File "/var/tmp/wxWidgets/wxWidgets-13~231/2.6/DSTROOT/System/Library/Frameworks /Python.framework/Versions/2.6/Extras/lib/ python/wx-2.8-mac-unicode/wx/__init__.py", line 45, in <module> File "/var/tmp/wxWidgets/wxWidgets-13~231/2.6/DSTROOT /System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib /python/wx-2.8-mac-unicode/wx/_core.py", line 4, in <module> ImportError:/System/Library/Frameworks /Python.framework/Versions/2.6/Extras/lib/python /wx-2.8-mac-unicode/wx/_core_.so: no appropriate 64-bit architecture (see "man python" for running in 32-bit mode) I don't really understand them and would appreciate if you could help me to do so, also, if you do know what's going on, how can I go about fixing them? Maybe this has something to do with the fact that Snow Leopard is 64-bit? Thanks!!

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  • How do I debug random Timeout::Error: execution expired

    - by ChrisH
    We are using Rails 2.3.5 and have been experiencing seemingly random Timeout::Error: execution expired errors. The errors reported by Hoptoad are not consistently in any particular controller and show up everywhere from user sessions to account settings to some of our core functionality controllers. The vast majority of requests do not Timeout but there are enough to cause concern. Is this normal? If so, what are some things to look at to decrease the occurance? If not, has anyone run into this and what are some common problems that can trigger an error like this.

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  • Content area not expanding with the content within it!

    - by Caleb
    I have been coding a design I had been working on for a week or so and have core across a snag. While doing the HTML/CSS of one of my right column modules the content within it expands however the bg and bordered area it is within does not. htttp://www.gamefriction.com/Coded/ (url with example) http://www.gamefriction.com/Coded/css/style.css (css stylesheet used on page) This website is purely HTML and CSS at this time all code can be viewed through the View Source option on all browsers. The area that is not working properly is the bullet links in the right module with the blue background that says "League Menu". The content above that will make the module background expand however the linked bullet menu will not.

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  • How do I add the j2ee.jar to a Java2WSDL ant script programmatically?

    - by Marcus
    I am using IBM's Rational Application Developer. I have an ant script that contains the Java2WSDL task. When I run it via IBM, it gives compiler errors unless I include the j2ee.jar file in the classpath via the run tool (it does not pick up the jar files in the classpath in the script). However, I need to be able to call this script programmatically, and it is giving me this error: "java.lang.NoClassDefFoundError: org.eclipse.core.runtime.CoreException" I'm not sure which jars need to be added or where? Since a simple echo script runs, I assume that it is the j2ee.jar or another ant jar that needs to be added. I've added it to the project's buildpath, but that doesn't help. (I also have ant.jar, wsanttasks.jar, all the ant jars from the plugin, tools.jar, remoteAnt.jar, and the swt - all which are included in the buildpath when you run the script by itself.) Script: <?xml version="1.0" encoding="UTF-8"?> <project default="build" basedir="."> <path id="lib.path"> <fileset dir="C:\Program Files\IBM\WebSphere\AppServer\lib" includes="*.jar"/> <!-- Adding these does not help. <fileset dir="C:\Program Files\IBM\SDP70Shared\plugins\org.apache.ant_1.6.5\lib" includes="*.jar"/> <fileset dir="C:\Program Files\IBM\SDP70\jdk\lib" includes="*.jar"/> <fileset dir="C:\Program Files\IBM\SDP70\configuration\org.eclipse.osgi\bundles\1139\1\.cp\lib" includes="*.jar"/> <fileset dir="C:\Program Files\IBM\SDP70Shared\plugins" includes="*.jar"/> --> </path> <taskdef name="java2wsdl" classname="com.ibm.websphere.ant.tasks.Java2WSDL"> <classpath refid="lib.path"/> </taskdef> <target name="build"> <echo message="Beginning build"/> <javac srcdir="C:\J2W_Test\Java2Wsdl_Example" destdir="C:\J2W_Test\Java2Wsdl_Example"> <classpath refid="lib.path"/> <include name="WSExample.java"/> </javac> <echo message="Set up javac"/> <echo message="Running java2wsdl"/> <java2wsdl output="C:\J2W_Test\Java2Wsdl_Example\example\META-INF\wsdl\WSExample.wsdl" classpath="C:\J2W_Test\Java2Wsdl_Example" className= "example.WSExample" namespace="http://example" namespaceImpl="http://example" location="http://localhost:9080/example/services/WSExample" style="document" use="literal"> <mapping namespace="http://example" package="example"/> </java2wsdl> <echo message="Complete"/> </target> </project> Code: File buildFile = new File("build.xml"); Project p = new Project(); p.setUserProperty("ant.file", buildFile.getAbsolutePath()); DefaultLogger consoleLogger = new DefaultLogger(); consoleLogger.setErrorPrintStream(System.err); consoleLogger.setOutputPrintStream(System.out); consoleLogger.setMessageOutputLevel(Project.MSG_INFO); p.addBuildListener(consoleLogger); try { p.fireBuildStarted(); p.init(); ProjectHelper helper = ProjectHelper.getProjectHelper(); p.addReference("ant.projectHelper", helper); helper.parse(p, buildFile); p.executeTarget(p.getDefaultTarget()); p.fireBuildFinished(null); } catch (BuildException e) { p.fireBuildFinished(e); } Error: [java2wsdl] java.lang.NoClassDefFoundError: org.eclipse.core.runtime.CoreException [java2wsdl] at java.lang.J9VMInternals.verifyImpl(Native Method) [java2wsdl] at java.lang.J9VMInternals.verify(J9VMInternals.java:68) [java2wsdl] at java.lang.J9VMInternals.initialize(J9VMInternals.java:129) [java2wsdl] at com.ibm.ws.webservices.multiprotocol.discovery.ServiceProviderManager.getDiscoveredServiceProviders(ServiceProviderManager.java:378) [java2wsdl] at com.ibm.ws.webservices.multiprotocol.discovery.ServiceProviderManager.getAllServiceProviders(ServiceProviderManager.java:214) [java2wsdl] at com.ibm.ws.webservices.wsdl.fromJava.Emitter.initPluggableBindings(Emitter.java:2704) [java2wsdl] at com.ibm.ws.webservices.wsdl.fromJava.Emitter.<init>(Emitter.java:389) [java2wsdl] at com.ibm.ws.webservices.tools.ant.Java2WSDL.execute(Java2WSDL.java:122) [java2wsdl] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275) [java2wsdl] at org.apache.tools.ant.Task.perform(Task.java:364) [java2wsdl] at org.apache.tools.ant.Target.execute(Target.java:341) [java2wsdl] at org.apache.tools.ant.Target.performTasks(Target.java:369) [java2wsdl] at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216) [java2wsdl] at org.apache.tools.ant.Project.executeTarget(Project.java:1185) [java2wsdl] at att.ant.RunAnt.main(RunAnt.java:32)

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  • How to repeat a particular execution multiple times

    - by Joshua
    The following snippet generates create / drop sql for a particular database, whenever there is a modification to JPA entity classes. How do I perform something equivalent of a 'for' operation where-in the following code can be used to generate sql for all supported databases (e.g. H2, MySQL, Postgres) Currently I have to modify db.groupId, db.artifactId, db.driver.version everytime to generate the sql files <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>hibernate3-maven-plugin</artifactId> <version>${hibernate3-maven-plugin.version}</version> <executions> <execution> <id>create schema</id> <phase>process-test-resources</phase> <goals> <goal>hbm2ddl</goal> </goals> <configuration> <componentProperties> <persistenceunit>${app.module}</persistenceunit> <drop>false</drop> <create>true</create> <outputfilename>${app.sql}-create.sql</outputfilename> </componentProperties> </configuration> </execution> <execution> <id>drop schema</id> <phase>process-test-resources</phase> <goals> <goal>hbm2ddl</goal> </goals> <configuration> <componentProperties> <persistenceunit>${app.module}</persistenceunit> <drop>true</drop> <create>false</create> <outputfilename>${app.sql}-drop.sql</outputfilename> </componentProperties> </configuration> </execution> </executions> <dependencies> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>${hibernate-core.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j-api.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-nop</artifactId> <version>${slf4j-nop.version}</version> </dependency> <dependency> <groupId>${db.groupId}</groupId> <artifactId>${db.artifactId}</artifactId> <version>${db.driver.version}</version> </dependency> </dependencies> <configuration> <components> <component> <name>hbm2cfgxml</name> <implementation>annotationconfiguration</implementation> </component> <component> <name>hbm2dao</name> <implementation>annotationconfiguration</implementation> </component> <component> <name>hbm2ddl</name> <implementation>jpaconfiguration</implementation> <outputDirectory>src/main/sql</outputDirectory> </component> <component> <name>hbm2doc</name> <implementation>annotationconfiguration</implementation> </component> <component> <name>hbm2hbmxml</name> <implementation>annotationconfiguration</implementation> </component> <component> <name>hbm2java</name> <implementation>annotationconfiguration</implementation> </component> <component> <name>hbm2template</name> <implementation>annotationconfiguration</implementation> </component> </components> </configuration> </plugin>

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  • Getting a NullPointerException at seemingly random intervals, not sure why

    - by Miles
    I'm running an example from a Kinect library for Processing (http://www.shiffman.net/2010/11/14/kinect-and-processing/) and sometimes get a NullPointerException pointing to this line: int rawDepth = depth[offset]; The depth array is created in this line: int[] depth = kinect.getRawDepth(); I'm not exactly sure what a NullPointerException is, and much googling hasn't really helped. It seems odd to me that the code compiles 70% of the time and returns the error unpredictably. Could the hardware itself be affecting it? Here's the whole example if it helps: // Daniel Shiffman // Kinect Point Cloud example // http://www.shiffman.net // https://github.com/shiffman/libfreenect/tree/master/wrappers/java/processing import org.openkinect.*; import org.openkinect.processing.*; // Kinect Library object Kinect kinect; float a = 0; // Size of kinect image int w = 640; int h = 480; // We'll use a lookup table so that we don't have to repeat the math over and over float[] depthLookUp = new float[2048]; void setup() { size(800,600,P3D); kinect = new Kinect(this); kinect.start(); kinect.enableDepth(true); // We don't need the grayscale image in this example // so this makes it more efficient kinect.processDepthImage(false); // Lookup table for all possible depth values (0 - 2047) for (int i = 0; i < depthLookUp.length; i++) { depthLookUp[i] = rawDepthToMeters(i); } } void draw() { background(0); fill(255); textMode(SCREEN); text("Kinect FR: " + (int)kinect.getDepthFPS() + "\nProcessing FR: " + (int)frameRate,10,16); // Get the raw depth as array of integers int[] depth = kinect.getRawDepth(); // We're just going to calculate and draw every 4th pixel (equivalent of 160x120) int skip = 4; // Translate and rotate translate(width/2,height/2,-50); rotateY(a); for(int x=0; x<w; x+=skip) { for(int y=0; y<h; y+=skip) { int offset = x+y*w; // Convert kinect data to world xyz coordinate int rawDepth = depth[offset]; PVector v = depthToWorld(x,y,rawDepth); stroke(255); pushMatrix(); // Scale up by 200 float factor = 200; translate(v.x*factor,v.y*factor,factor-v.z*factor); // Draw a point point(0,0); popMatrix(); } } // Rotate a += 0.015f; } // These functions come from: http://graphics.stanford.edu/~mdfisher/Kinect.html float rawDepthToMeters(int depthValue) { if (depthValue < 2047) { return (float)(1.0 / ((double)(depthValue) * -0.0030711016 + 3.3309495161)); } return 0.0f; } PVector depthToWorld(int x, int y, int depthValue) { final double fx_d = 1.0 / 5.9421434211923247e+02; final double fy_d = 1.0 / 5.9104053696870778e+02; final double cx_d = 3.3930780975300314e+02; final double cy_d = 2.4273913761751615e+02; PVector result = new PVector(); double depth = depthLookUp[depthValue];//rawDepthToMeters(depthValue); result.x = (float)((x - cx_d) * depth * fx_d); result.y = (float)((y - cy_d) * depth * fy_d); result.z = (float)(depth); return result; } void stop() { kinect.quit(); super.stop(); } And here are the errors: processing.app.debug.RunnerException: NullPointerException at processing.app.Sketch.placeException(Sketch.java:1543) at processing.app.debug.Runner.findException(Runner.java:583) at processing.app.debug.Runner.reportException(Runner.java:558) at processing.app.debug.Runner.exception(Runner.java:498) at processing.app.debug.EventThread.exceptionEvent(EventThread.java:367) at processing.app.debug.EventThread.handleEvent(EventThread.java:255) at processing.app.debug.EventThread.run(EventThread.java:89) Exception in thread "Animation Thread" java.lang.NullPointerException at org.openkinect.processing.Kinect.enableDepth(Kinect.java:70) at PointCloud.setup(PointCloud.java:48) at processing.core.PApplet.handleDraw(PApplet.java:1583) at processing.core.PApplet.run(PApplet.java:1503) at java.lang.Thread.run(Thread.java:637)

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  • Debugging segfault on swig/python/c++

    - by Pradyot
    I am trying to figure out what the best way to debug a segault with swig/python/c++. A core file is being generated. I have a basic MessageFactory(defined in c++ that provides a simple interface to accept a few strings as input and return a string as output). This interface is then specified in a .i file. swig is used to generate Wrapper.cpp as well as a MessageFactory.py from the .i file. This along with supporting files is compiled into a dynamic lib. The point of failure , is when the MessageFactory is instantiated within python code. Any suggestions on how I can go about debugging this? I've tried running the script within pdb, what I know from that is import on the generated MessageFactory.py is whats causing the seg-fault.

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  • How do I use the Silicon Laboratories IDE with SDCC?

    - by David Cary
    I'm thinking about using a microcontroller with an 8051 core from Silicon Laboratories. I hope that I can use C rather than assembly language, so I installed SDCC. I installed the "Silicon Laboratories IDE" to download the executable binaries to the on-chip Flash program memory. It also supposedly can be set up (under the Project Tool Chain Integration menu) to use "any" 8051 compiler. I tried to set it up to use SDCC, but every time I hit the "Assemble/Compile File" button it tells me "Compiler process did not sucessfully complete." How do I get new C code I write onto the SiLabs C8051F310 chip? Is there a web site with a step-by-step HOWTO? (Would it be easier to use a MAKEFILE that calls SDCC, only using the "Silicon Laboratories IDE" for the very last step of downloading the executable binary to the chip?)

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  • Help setup my .git/config file for Heroku AND my Unfuddle Account

    - by 05WRXSTi
    Ok, I have three different computers that I work from and right now their configurations are all different so I have to push/pull a certain on each and its very bothersome. What I want to do is have ONE config file that I can use for all three that will allow me to do the following: git push unfuddle git pull heroku git push unfuddle git pull heroku And I'm new to git, so I know that maybe I need heroku master or 'heroku origin` or somethign? Here is what my config file looks like right now: [core] repositoryformatversion = 0 filemode = true bare = false logallrefupdates = true [remote "origin"] fetch = +refs/heads/*:refs/remotes/origin/* url = [email protected]:HEROKU-APP.git [branch "master"] remote = origin merge = refs/heads/master [remote "unfuddle"] fetch = +refs/heads/*:refs/remotes/origin/* url = [email protected]:UNFUDDLE-APP/UNFUDDLE-APP.git obviously the git urls were changed to protect the innocent. What should I change so that I can easily push and pull to/from both of these repos? Thanks!

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  • How to get reference to SqlConnection (or Connection string) in Castle ActiveRecord?

    - by VoimiX
    how can I get reference to current SqlConnection or Sqlconnection in config? I found http://svn.castleproject.org:8080/svn/castle/trunk/ActiveRecord/Castle.ActiveRecord.Tests/DifferentDatabaseScopeTestCase.cs and code private string GetSqlConnection() { IConfigurationSource config = GetConfigSource(); IConfiguration db2 = config.GetConfiguration(typeof(ActiveRecordBase)); string conn = string.Empty; foreach (IConfiguration child in db2.Children) { if (child.Name == "connection.connection_string") { conn = child.Value; } } return conn; } But I cant understand where I can find "GetConfigSource" implementation? Is this standart Castle helper function or not? I use these namespaces using Castle.ActiveRecord; using NHibernate.Criterion; using NHibernate; using Castle.Core.Configuration; using Castle.ActiveRecord.Framework;

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  • setting up/installing/configuring nginx LEMP stack on fresh VPS server

    - by grant tailor
    I need some help in settingup/installing and configuring nginx LEMP stack on a fresh new VPS i have. The specs of the CentOS 5.7 VPS are 2GB DDR3 ECC RAM(4GB burst), 1 core 1.5Ghz(3Ghz burst) and 100GB RAID 10 storage, unmetered bandwidth @ 100Mpbs all for a whopping $25/month(unbeatable, yeah i know :) Anyways i have followed this LEMP(will also need MySQL and PHP) stack guide on linode http://library.linode.com/lemp-guides/centos-5 but basically what i want is to be able to host multiple website on this webserver after everything is setup. I am used to using DirectAdmin control panel on other server and want to have things setup so i can host multiple websites...mostly wordpress and drupal themes. Lets say 10 websites on this nginx web server. So can someone please help me on what i need to do to take "full" advantage of nginx power and performance, while been able to easily manage these multiple websites (wordpress and drupal themes)? Thanks.

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  • iPhone animation: how do I animate the filling up of an area?

    - by Sandeep
    Consider a circle. Now consider a radius of the circle, drawn from the center of the circle towards the right. Now imagine that the radius is rotating about the center of the circle, sweeping out an area as it rotates. My problem is: I want to use iPhone's animation techniques to fill up the swept out area with a different color from the background area of the circle, as the radius rotates from 0 degrees to any chosen number of degrees about the circle. I've looked through the Core Animation API, KeyFrame Animations, etc. but I am not able to find out how to do this. Any hints will be most welcome. Thanks, Sandeep

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  • OAuth java implementation, oauth_callback missing

    - by l245c4l
    Hey, My problem is I get error while trying to get request token from Yahoo. The error says Im missing oauth_callback parameter and yes I miss it because I dont need it. Ive read I need to set it to "oob" value if I dont want to use it(desktop app). And I did that but to no avail. If I set it to null the same happens. Im using OAuth for java: http://oauth.googlecode.com/svn/code/java/core/ OAuthServiceProvider serviceProvider = new OAuthServiceProvider("https://api.login.yahoo.com/oauth/v2/get_request_token", "https://api.login.yahoo.com/oauth/v2/request_auth", "https://api.login.yahoo.com/oauth/v2/get_token"); OAuthConsumer consumer = new OAuthConsumer("oob", consumerKey, consumerSecret, serviceProvider); OAuthAccessor accessor = new OAuthAccessor(consumer); OAuthClient client = new OAuthClient(new HttpClient4()); OAuthMessage response = client.getRequestTokenResponse(accessor, OAuthMessage.POST, null); System.out.println(response.getBodyAsStream());

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