Processing Forum

Questions on concurrency and containers (get IllegalStateException)

[5 Replies]
- 06-Jun-2013 01:52 PM
- Forum: Programming Questions
I am not really sure why I am getting this error (IllegalStateException).

I am using a pair of ArrayLists and iterating through them with some nested loops.

This list (where I get the exception) is populated in a keyPressed() routine.

In the draw() routine I am doing something as follows:
1. ArrayList m,s;
2. ...
3. void draw(){
4. //...
5. Iterator<PVector> i,j;
6. i = s.iterator();
7. j = m.iterator();
8. while (i.hasNext()){
9. //...
10. while (j.hasNext()){
11. if ( /* some condition */) {
12. i.remove();
13. j.remove();
14. }
15. }
16. }
17. }
18. void keyPressed() {
19. if (key == ' ') s.add(new PVector(x,y));
20. }
I am getting the exception on line 12. It could be happening at the same time as the keyPressed() if they are in fact in different threads.

Problem with PeasyCam on 2.0b7 and OS X 10.8.2

[4 Replies]
- 16-Feb-2013 07:46 AM
- Forum: Contributed Library Questions
I am getting an error somewhere in the draw() loop...

CODE:

import peasy.test.*;

import peasy.org.apache.commons.math.*;

import peasy.*;

import peasy.org.apache.commons.math.geometry.*;

PeasyCam cam;

void setup(){

size (500,500, P3D);

background(0);

lights();

cam = new PeasyCam(this,300);

}

void draw(){

background(0);

stroke(#ffffff);

noFill();

box(100);

}

ERROR:

PeasyCam v105

Exception in thread "Animation Thread" java.lang.IllegalArgumentException: argument type mismatch

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:597)

at processing.core.PApplet$RegisteredMethods.handle(PApplet.java:1084)

at processing.core.PApplet.handleMouseEvent(PApplet.java:2532)

at processing.core.PApplet.dequeueEvents(PApplet.java:2463)

at processing.core.PApplet.handleDraw(PApplet.java:2153)

at processing.opengl.PGL$PGLListener.display(PGL.java:2472)

at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:548)

at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:533)

at jogamp.opengl.GLAutoDrawableBase$2.run(GLAutoDrawableBase.java:280)

at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:904)

at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:822)

at com.jogamp.newt.opengl.GLWindow.display(GLWindow.java:543)

at processing.opengl.PGL.requestDraw(PGL.java:814)

at processing.opengl.PGraphicsOpenGL.requestDraw(PGraphicsOpenGL.java:1566)

at processing.core.PApplet.run(PApplet.java:2020)

at java.lang.Thread.run(Thread.java:680)

processing.exe command line options

[2 Replies]
- 26-Nov-2011 04:27 PM
- Forum: General Discussion
Processing is not finding the correct JDK. I am getting the following error when launching processing:

I have a JDK on my machine; however, it is not my default instance of Java. I have tried to create a .bat file that points to the java version; however, it doesn't appear to look at my modified ENV:
2. SETLOCAL
3. SET CLASSPATH=C:\glassfish3\jdk\bin;%CLASSPATH%
4. SET PATH=C:\glassfish3\jdk\bin;%HOMEPATH%\Documents\jp\bin\processing\processing-1.5.1;%PATH%
5. cmd processing
Here is the version of Java that my ENV is pointed to:
2. C:\glassfish3\jdk\bin>.\java -version
3. java version "1.6.0_27"
4. Java(TM) SE Runtime Environment (build 1.6.0_27-b07)
5. Java HotSpot(TM) 64-Bit Server VM (build 20.2-b06, mixed mode)
How else can I launch this?

Tnx,

Jon

w1jp

NegativeArraySizeException in shape()

[1 Reply]
- 06-Aug-2011 05:29 PM
- Forum: Programming Questions
I am having an issue with the following code:
2. // GLOBALS
3. PShape[] spzlSet;
4. String baseURL = "";
5. String[] spzlURLs = {
6. "spazzl1.svg",
7. "spazzl2.svg",
8. "spazzl3.svg"
9. };
12. // SETUP
13. void setup(){
14. // use full screen
15. size(screen.width, screen.height);
16. background(255);
17. smooth();
18. // load shapes
19. spzlSet = new PShape[spzlURLs.length];
20. String s;
21. for (int i=0; i<spzlURLs.length; i++){
22. s = baseURL+spzlURLs[i];
23. println(s);
24. spzlSet[i] = loadShape(s);
26. }
27. println("size: "+spzlSet.length);
28. shapeMode(CORNER);
29. noLoop();
30. }
32. // DRAW
33. void draw(){
34. background(255);
35. for (int i=0; i<spzlSet.length; i++){
36. shape(spzlSet[i], 30+130*i, 30, 100, 111);
37. }
38. }
I am getting the exception on line 36.
Any ideas?

Jon

Use of beginCamera/endCamera

[0 Replies]
- 19-Jul-2011 03:34 PM
- Forum: Programming Questions
Given: size(500,500,P3D);

I am having some issues trying to use these functions correctly.

I am expecting that if I create a camera(0,0,100,0,0,0,0,-1,0) that I'll have a camera looking at the origin down the z axis (PVector(0,0,-1)).

I would expect if I do this:

beginCamera();
rotateY(-PI/2);
endCamera();

That my camera will now be looking down the X axis (i.e., camera(100,0,0,0,0,0,0,-1,0)). However, this is not the case.

What am I conceiving incorrectly here?

BTW, I added a printCamera(); command and it gave me a 4x4 matrix which I can't find any documentation on what that matrix stands for.

The default camera position for a size(100,100,P3D) is:

1      0      0      -50
0      1      0      -50
0      0      1      -86.6025
0      0      0      1

I am assuming that the last column is my x,y,z,1 (looks like there is a unity matrix in here).

Can anyone shed any light on this?

Thanks,
Jon
w1jp

Trouble finding an error.

[4 Replies]
- 12-Jul-2011 05:53 PM
- Forum: Programming Questions
Maybe it is me working in a bar at 20:47—however, I am having some issue locating the following error:

To me, it doesn't look like I have any unclosed '()'s.

I don't have a lot of Processing experience; however, I am fairly fluent in Java. I used the explicit version of String, because I don't know what a processing String is.

Cheers,
Jon
w1jp

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