Processing Forum

Line number of error with multiple tabs

[1 Reply]
- 24-Jun-2012 11:38 AM
- Forum: Integration and Hardware
Is there a way of pinpointing the line of an error when you have multiple tabs for a project? For example, the console is telling me that my program is crashing on line 500, but I don't know where line 500 is because each tab starts with a line number of 1, and none of my tabs have more than 100 lines of code. Do I need to add up the number of lines in each tab to figure out where line 500 is?

clear image

[1 Reply]
- 13-Jan-2012 01:47 PM
- Forum: Programming Questions
How can I continually clear the canvas? I essentially want to make sure the entire screen is cleared at the end of each draw(). This is the code I have, which doesn't work.
Thanks!
2. void setup() {
3. size(200, 200);
4. }
6. void draw() {
7. fill(255);
8. ellipseMode(CENTER);
9. ellipse(width/2, height/2,width/2,height/2);
10. delay(1000);
12. fill(0);
13. rect(0,0,width,height);
14. delay(1000);
15. }

OpenGL + selectFolder()

[5 Replies]
- 12-Jan-2012 08:35 PM
- Forum: Contributed Library Questions
I am running into problems using both OpenGL and selectFolder() in my sketch. I am using the PeasyCam, controlP5, and OpenGL libraries, so as a sanity check, I used the following sample code:

http://www.sojamo.de/libraries/controlP5/examples/ControlP5withPeasyCam/ControlP5withPeasyCam.pde

I then added an extra line to select a folder and my program just hangs up without doing anything. BUT, if I change OpenGL to P3D, it works fine. Anyone know how to solve this problem? I need OpenGL for my application so...
2. /**
3. * ControlP5 with PeasyCam support. tested with peasy 0.8.2
4. *
5. * by jeffg 2009
6. * http://processing.org/discourse/yabb2/YaBB.pl?num=1234988194/30#30
7. */
9. import peasy.*;
10. import controlP5.*;
11. import processing.opengl.*;
13. PeasyCam cam;
14. ControlP5 controlP5;
15. PMatrix3D currCameraMatrix;
16. PGraphics3D g3;
18. int buttonValue = 1;
20. int myColor = color(255,0,0);
22. void setup() {
23. size(400,400,OPENGL);
24. String directory = selectInput();
25. g3 = (PGraphics3D)g;
26. cam = new PeasyCam(this, 100);
27. controlP5 = new ControlP5(this);
28. controlP5.addButton("button",10,100,60,80,20).setId(1);
29. controlP5.addButton("buttonValue",4,100,90,80,20).setId(2);
30. controlP5.setAutoDraw(false);
32. }
33. void draw() {
35. background(0);
36. hint(ENABLE_DEPTH_TEST);
37. fill(myColor);
38. box(30);
39. pushMatrix();
40. translate(0,0,20);
41. fill(0,0,255);
42. box(5);
43. popMatrix();
44. // makes the gui stay on top of elements
45. // drawn before.
46. hint(DISABLE_DEPTH_TEST);
47. gui();
49. }
51. void gui() {
52. currCameraMatrix = new PMatrix3D(g3.camera);
53. camera();
54. controlP5.draw();
55. g3.camera = currCameraMatrix;
56. }
58. void controlEvent(ControlEvent theEvent) {
59. println(theEvent.controller().id());
60. }
62. void button(float theValue) {
63. myColor = color(random(255),random(255),random(255));
64. println("a button event. "+theValue);
65. }

sorting a String array?

[5 Replies]
- 01-Dec-2011 08:55 AM
- Forum: Programming Questions
I am trying to sort a string array and am not getting the right order:
2. String[] a = { "1.105", "23.805", "29.31", "53.6", "105.217", "10.896307" };
3. a = sort(a);
4. println(a);
is returning:
{1.105, 10.896307, 105.217, 23.805, 29.31, 53.6}

I am using a string array rather than a float array since I'm using loadStrings to load values from a text file.

Ess AudioChannel - get current time of audio file?

[0 Replies]
- 30-Nov-2011 07:32 PM
- Forum: Contributed Library Questions
I'd like to show the current time of the audio file I am playing using Ess's Audio Channel. Does anyone have an example of how to do this?

Many thanks!

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