Processing Forum

Processing 2 and Sublime-Processing Bundle working?

[3 Replies]
- 29-May-2013 10:29 AM
- Forum: Integration and Hardware
Hi,
I have come to love using the Sublime-Processing bundle by @bndktgrs.

Since installing the latest version of Processing (v2.0b9) I'm now seeing the error below when working in Sublime.

Is anyone else seeing this? I am not surprised given Processing 2 is still clearly labeled as beta. Hopefully once it is 'finalized' the integration will work again.
2. Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/jdi/Bootstrap
3. at processing.mode.java.runner.Runner.findConnector(Runner.java:759)
4. at processing.mode.java.runner.Runner.launchVirtualMachine(Runner.java:215)
5. at processing.mode.java.runner.Runner.launch(Runner.java:120)
6. at processing.mode.java.Commander.<init>(Commander.java:260)
7. at processing.mode.java.Commander.main(Commander.java:97)
8. Caused by: java.lang.ClassNotFoundException: org.eclipse.jdi.Bootstrap
9. at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
10. at java.security.AccessController.doPrivileged(Native Method)
11. at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
12. at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
13. at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
14. at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
15. ... 5 more

Getting extra empty childNodes in XML

[5 Replies]

27-Nov-2012 10:17 AM
Forum: Programming Questions

I am pulling an XML feed from the We Feel Fine api. When I try to parse the feed every other childNode is empty.

The XML validates on W3School's XML validator.

Here's a snippet of what the xml looks like:

<?xml version="1.0"?>

<feeling sentence="i was smiling all weekend had this easing feeling in me and it was just good" feeling="good" born="1992" />
...

<feeling sentence="i think people feel this way some of the time it's just that i feel that way most of the time" born="1981" />
	</feelings>

Here's the code I'm using to test the feed.

void setup() {
background(255);
size(100, 100);
String url = "http://api.wefeelfine.org:8080/ShowFeelings?returnfields=sentence,feeling,gender,born&display=xml&agerange=0,10,20,30,40,50";
XML xml = loadXML(url);
for (int i = 0; i<xml.getChildCount(); i++){
XML childNode = xml.getChild(i);
println("childNode("+i+") = " + childNode);
}
}

The console output looks like this:

childNode(0) =
childNode(1) = <feeling born="1992" feeling="high" sentence="i don t feel so high now but it was predictable"/>
childNode(2) =
childNode(3) = <feeling born="1992" feeling="good" sentence="i feel good"/>

Any ideas?

Thanks,

Stephen

What does the console warning "Adding same texture twice" mean?

[1 Reply]

03-Nov-2012 06:28 PM
Forum: Core Library Questions

I am working on a sketch using the OpenGL render mode and I am getting an error "Adding same texture twice" and I'm trying to figure out what that means.

I looked it up in the source code and it is generated by a function called createTextureObject. Anyone know what the significance of this message is?

// Texture Objects -----------------------------------------------------------

protected int createTextureObject(int context) {

deleteFinalizedTextureObjects();

int[] temp = new int[1];

pgl.genTextures(1, temp, 0);

int id = temp[0];

GLResource res = new GLResource(id, context);

if (glTextureObjects.containsKey(res)) {

showWarning("Adding same texture twice");

} else {

glTextureObjects.put(res, false);

}

return id;

}

http://code.google.com/p/processing/source/browse/trunk/processing/core/src/processing/opengl/PGraphicsOpenGL.java?spec=svn10243&r=10243#663

Here's the code I'm running that's generating the warning:

import processing.opengl.*;
//Declare Globals
float PHI = 0.618033989;
int rotationMode = 0;
// 0 = rotate in 90deg increments
// 1 = fine increments (cn.val * TWO_PI)
int xRes, yRes;
float cellH, cellW;
PImage src;
float imgTileW;
float imgTileH;
Node[] nodeField;
void setup() {
background(255);
size(1200, 800, OPENGL);
smooth();
colorMode(RGB, 255, 255, 255, 255);
xRes = 30;
yRes = 20;
cellH = height/yRes;
cellW = width/xRes;
src = loadImage("andrew.jpeg");
imgTileW = src.width/xRes;
imgTileH = src.height/yRes;
nodeField = new Node[xRes * yRes];
for (int i=0; i < nodeField.length; i++) {
Node n = new Node();
n.gridLoc.x = i % xRes;
n.gridLoc.y = floor(i / xRes);
n.loc.x = n.gridLoc.x * cellW;
n.loc.y = n.gridLoc.y * cellH;
nodeField[i] = n;
}
}
void draw() {
background(255);
for (Node n : nodeField) {
n.val = noise((n.gridLoc.x + frameCount/10) * 0.05, (n.gridLoc.y) * .05);
}
for (int i=0; i < nodeField.length; i++) {
Node cn = nodeField[i];
fill(0);
noStroke();
smooth();
pushMatrix();
translate(cn.loc.x + (cellW/2), cn.loc.y + (cellH/2));
if (rotationMode == 0) {
if (cn.val < 0.25) {
rotate(0);
}
else if (cn.val > 0.25 && cn.val < 0.5) {
rotate(PI/2);
}
else if (cn.val > 0.5 && cn.val < 0.75) {
rotate(PI);
}
else if (cn.val > 0.75) {
rotate(PI/2+PI);
}
}
else if (rotationMode == 1) {
rotate(cn.val * TWO_PI);
}
PImage tile = src.get(int(cn.gridLoc.x * imgTileW), int(cn.gridLoc.y * imgTileH), int(imgTileW), int(imgTileH));
image(tile, -cellW/2, -cellH/2, cellW, cellH);
popMatrix();
}
}
class Node {
PVector loc = new PVector();
float val;
PVector gridLoc = new PVector();
}

Vertlet Springs vs AttractionBehaviours

[4 Replies]
- 24-Nov-2011 05:06 PM
- Forum: Contributed Library Questions
Hi,
I'm getting started with toxiclibs and I have a question about whether to use springs or attraction.

I'm trying to show four separate clusters of nodes grouped around different points. I'd like to have each node 'attracted' to the centre of its cluster and also slightly repelled from other nodes to avoid overlap.

Should I be using springs to attach all the different nodes to their cluster's centre? Or, can / should I be applying an AttractionBehaviour that would attract a cluster's nodes to the centre?

Thanks

Steve

Testing if mouse is over an arc

[1 Reply]
- 31-Oct-2011 01:52 AM
- Forum: General Discussion
I am drawing a graph with about 50 arcs. I'd like to highlight individual arcs as they are moused over or clicked on.
Any suggestions for how to test if the mouse is over (or 'near enough') to an arc?

Thanks,

Stephen

Twitter4j v 2.2.x experience?

[4 Replies]
- 04-Apr-2011 01:56 PM
- Forum: Contributed Library Questions
Has anyone successfully used the latest Twitter4j library? I am able to authenticate using 2.1.7 but in the move to 2.2.2 I am running into issues.

This is the code that used to work (and currently works with v2.1.7):
1. Twitter myTwitter;
  
  void setup() {
  
  myTwitter = new Twitter("username", "password");
When using v2.2.2, that code now throws an error saying:

"Cannot instantiate the type Twitter"

Stephen

Possible to convert a date in milliseconds back to a date string using Core date/time functions?

[1 Reply]
- 28-Feb-2011 11:31 AM
- Forum: Processing with Other Languages
Is it possible to convert a date in milliseconds back to a date string without using the Java Date object? I would like to a way that uses 'regular' Processing commands so I can run it later for Processing.js.
I've asked this question on the Processing.js Google Group but not gotten any traction yet.
Thanks,
Stephen

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