Processing Forum

ToxiclibsSupport import in eclipse not working

[1 Reply]
- 09-Nov-2011 01:44 PM
- Forum: Integration and Hardware
So I can't seem to get:

import toxi.processing.*;

to import. I get "cannot be resolved" when trying to import this library in eclipse.

Having a sketch in eclipse, does this not work? I know running an example (Specifically the PolygonClipping example) in the processing IDE, the sketch and import work fine.

That should mean that the only jar file needed is toxiclibscore.jar if it works in the processing IDE.

I have that toxiclibscore.jar added to my build path in eclipse, all other imports work, just can't seem to get this import to work.

Is this a known issue in eclipse? or am i missing another jar?

I need to use ToxiclibsSupport, and without this import I cant seem to get that work.

Slow Framerate with 800+ Voronoi Points

[7 Replies]
- 03-Nov-2011 03:31 PM
- Forum: Contributed Library Questions
Requires Lee Byrons Voronoi Mesh library.

Problem:

- Slow framerate once 800+ points are added.

Looking for optimization / suggestions to improve performance. As I am hoping to get it running very smoothly at the 1000 - 2000 point mark.
2. import megamu.mesh.*;
4. Voronoi voronoi;
5. float[][] points = new float[0][2];
6. int totalPoints = 800;
7. ArrayList<PVector> pointsList = new ArrayList<PVector>();
8. int selectDistance = 10;
9. boolean selected = false;
10. int index = 0;
12. void setup()
13. {
14. size(1800, 900);
15. //ImportPoints();
16. GenerateVoronoiPoints();
17. }
19. void draw()
20. {
21. background(255);
22. DrawVoronoi();
23. }
25. void ImportPoints()
26. {
27. String[] strLines = loadStrings("VoronoiPoints.txt");
28. for(int i=0;i<strLines.length;i++)
29. {
30. String[] strList = split(strLines[i], ',');
32. float x = new Float(strList[0]);
33. float y = new Float(strList[1]);
34. points = (float[][])append(points, new float[] {x, y});
35. }
36. }
38. void DrawVoronoi()
39. {
40. voronoi = new Voronoi(points);
41. MPolygon[] regions = voronoi.getRegions();
42. for(int r=0;r<regions.length;r++)
43. {
44. regions[r].draw(this);
45. stroke(0);
46. ellipse(points[r][0],points[r][1],5,5);
47. }
48. }
50. void GenerateVoronoiPoints()
51. {
52. PVector pv1;
53. float x;
54. float y;
55. for(int i=0;i<totalPoints;i++)
56. {
57. x = random(5,width);
58. y = random(5,height);
59. pv1 = new PVector(x,y);
60. if(!pointsList.contains(pv1))
61. {
62. pointsList.add(pv1);
63. }
64. }
66. for(int p=0;p<pointsList.size();p++)
67. {
68. x = pointsList.get(p).x;
69. y = pointsList.get(p).y;
70. points = (float[][])append(points, new float[] {x, y});
71. }
72. }
74. void mousePressed()
75. {
76. if(mouseButton == RIGHT)
77. {
78. points = (float[][])append(points, new float[] {mouseX, mouseY});
79. }
80. voronoi = new Voronoi(points);
81. }
83. void mouseDragged()
84. {
85. for(int i =0;i<points.length;i++)
86. {
87. if(!selected)
88. {
89. if (mouseX > points[i][0] - selectDistance
90. && mouseX < points[i][0] + selectDistance
91. && mouseY > points[i][1] - selectDistance
92. && mouseY < points[i][1] + selectDistance)
93. {
94. selected = true;
95. index = i;
96. }
97. }
98. }
99. if(selected)
100. {
101. points[index][0] = mouseX;
102. points[index][1] = mouseY;
103. }
104. }
106. void mouseReleased()
107. {
108. selected = false;
109. index = -1;
110. }
So this is working, however once I hit 800+ points the framerate drops once you start dragging points around / adding points.

Can anyone help me with the framerate issues, possible suggestions for Optimization?

Thanks! This thing is kinda fun to play around with too.

Side note: This is part of a larger project, cut out in its simplest form to test for efficiency.

FBX Export

[1 Reply]
- 18-Oct-2011 04:24 PM
- Forum: General Discussion
Hey does anyone know a way of exporting an FBX file from processing or could stear me towards some libraries?

I'm creating a 2D voronoi mesh, that I am triangulating. I then want to export that mesh as an FBX file. I've exported that image as an OBJ before, but now I'm looking at FBX, any ideas?

Blob edges

[1 Reply]
- 13-Sep-2011 04:11 PM
- Forum: Contributed Library Questions
I'm looking to get each edge drawn as a single line, until the edges angle changes.

Is it just blobscanner or is this the way that all blob detection works?

The code below shows that the scanner goes top to bottom to find the edges of the shape so points are not in a proper order along the line, they bounce back and forth.
2. import Blobscanner.*;
4. PImage img;
5. Detector bd;
6. PVector[] edge;
7. int i;
9. void setup()
10. {
11. size(1800,900);
12. img = loadImage("NavMap1.png");
13. //img.filter(THRESHOLD);
14. bd = new Detector(this,0,0,img.width,img.height,255);
15. DetectBlobs();
16. EdgeDetails();
17. }
19. void draw()
20. {
22. }
24. void EdgeDetails()
25. {
26. for(int i=0;i<bd.getBlobsNumber();i++)
27. {
28. edge = bd.getEdgePoints(i);
29. }
30. for(int p=0;p < edge.length;p++)
31. {
32. stroke(0,255,0);
33. point(edge[p].x,edge[p].y);
34. float p1X = edge[p].x; float p1Y = edge[p].y;
35. float p2X = edge[p+1íge.length].x; float p2Y = edge[p+1íge.length].y;
37. line(p1X,p1Y,p2X,p2Y);
38. p++;
39. }
40. }
42. void DetectBlobs()
43. {
44. color contoursCol = color(255, 0, 0);
45. int contoursThickness = 2;
46. image(img,0,0);
47. img.loadPixels();
48. bd.findBlobs(img.pixels,img.width,img.height);
49. bd.loadBlobsFeatures();
50. //bd.drawContours(contoursCol, contoursThickness);
51. }
Does anyone have a good way to do this?

I can get the edges, but I wind up with 1278 edges when i really want 20.

This is the image I'm currently working with.

Mesh Library - Voronoi Issue

[9 Replies]
- 04-Apr-2011 02:59 PM
- Forum: Contributed Library Questions
This is the image I get. I'll give you a breakdown of what I'm doing.

- Exporting Voronoi Coordinates

- Importing coordinates to make new points.

- Upon re-importing, I've made it so there are no duplicated points using a set.

Problem:

- (Degrees of this problem range from a few cells to a lot) I lose areas of the Voronoi to nothingness

when I used the fill(??) function.

- Why do these black spaces appear? Anyone else run into this issue?

- The skeleton of the Voronoi appears to be fine when I don't use the fill(?,?,?) function.

Creating a set of points

[12 Replies]
- 02-Apr-2011 11:27 AM
- Forum: Programming Questions
I've been using Lee Byron's mesh library and basically I want to create a set of points.
1. for(int c=0;c<coordinates.length;c++)
2. {
3. OUTPUT.println(coordinates[c][0] + "," + coordinates[c][1] + "," + p + "," + "Coordinate");
6. set.add(point(coordinates[c][0],coordinates[c][1]));
7. }
I get this error:
The method add(Object) in the type Set is not applicable for the arguments (void)

I was curious as to how I could either turn these coordinates into an object, or work around whats happening here and just plug the points into the set.

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