I have this following code - a modified version of Toxiclibs Example:

2. import toxi.color.*;
3. import toxi.geom.*;
4. import toxi.processing.*;
5. 
   
6. // number of vertices in each polygon
7. int num=8;
8. 
   
9. List<ColoredPolygon> polygons = new ArrayList<ColoredPolygon>();
10. 
    
11. ToxiclibsSupport gfx;
12. 
    
13. void setup() {
14.   size(680, 382);
15.   noStroke();
16.   smooth();
17.   gfx=new ToxiclibsSupport(this);
18. }
19. 
    
20. void draw() {
21.   background(255);
22.   // iterate over all polygon created so far
23.   for (ColoredPolygon p : polygons) {
24.     // apply vertex smoothing
25.     //p.smooth(0.01,0.05);
26.     // and draw
27.     stroke(p.col.toARGB());
28.     gfx.polygon2D(p);
29.   }
30. }
31. 
    
32. // create a new polygon around the mouse position using a random radius for each vertex
33. void mousePressed() {
34.   // pick a random bright color and set its alpha to 50-80%
35.   TColor col=ColorRange.BRIGHT.getColor().setAlpha(random(0.5, 0.8));
36.   // add randomized vertices
37.   ColoredPolygon poly=new ColoredPolygon(col);
38.   float radius=random(50,100);
39.   for (int i=0; i<num; i++) {
40.     poly.add(Vec2D.fromTheta((float)i/num*TWO_PI).scaleSelf(random(0.2, 1)*radius).addSelf(mouseX, mouseY));
41.   }
42.   // add poly to list of polygons
43.   polygons.add(poly);
44. }
45. 
    
46. 
    
47. // extend the standard Polygon2D class to include color information
48. class ColoredPolygon extends Polygon2D {
49.   ReadonlyTColor col;
50. 
    
51.   public ColoredPolygon(ReadonlyTColor col) {
52.     this.col=col;
53.   }
54. }
    
    

In this, if two polygons intersect, I would like to clip the recently generated polygon against the boundary of the intersecting polygon.

Could someone please help me with the above mentioned code?

The following is my code:

2. Tri pTri;
3. 
   
4. void setup()
5. {
6.   size (500, 500);
7.   pTri = new Tri();
8. }
9. 
   
10. 
    
11. void draw()
12. {
13.   background (255);
14.   pTri.display();
15. }
17. 
    
19. class Tri
20. {
21.   color c;
22.   float x1, y1;
23.   float x2, y2;
24.   float x3, y3;
25. 
    
26.   Tri()
27.   {
28.     c = color (255, 0, 0);
29.     x1 = random(0, 150);
30.     y1 = random(0, 150);
31.     x2 = random(0, 150);
32.     y2 = random(0, 150);
33.     x3 = random(0, 150);
34.     y3 = random(0, 150);
35.   }
36. 
    
37.   void display()
38.   {
39.     if (mousePressed=true)
40.     {
41.       stroke (c);
42.       triangle (mouseX, y1, x2, mouseY, x3, y3);
43.     }
44.   }
45. }

In this, how do i say, if mousePressed create the triangle around the mouse, using random radius for each vertices????

For my project, I need to make different polygons to join at their edges and probably, using GA, fill a given space.

Being new to processing, my coding skills are very slow. For now I have managed to come up to the following:

2. void setup()
3. {
4.   size(500, 500);
5.   background(0);
6. //triangle
7.   fill(255);
8.   polygon(3, 50, 75, 35, 75, -PI/2);
9. //rect
10.   fill(255,0,0);
11.   polygon(4, (width-75), 100, 75, 50, PI/4);
12. //pentagon
13.   fill(255, 204, 255);
14.   polygon(5, 150, 200,55, 75, -PI/20);
15. //hexagon
16.   fill(0, 255, 255);
17.   polygon(6, 80, (height-80), 75, 75, -PI);
18. //octagon
19.   fill(0, 0, 255);
20.   polygon(8, (width-150), (height-150), 75, 50, 0);
21. }
22. 
    
23. void polygon(int n, float px, float py, float w, float h, float startAngle)
24. {
25.   float angle = TWO_PI/ n;
26.   beginShape();
27.   for (int i = 0; i < n; i++)
28.   {
29.     vertex(px + w * cos(startAngle + angle * i), 
30.     py + h * sin(startAngle + angle * i));
31.   }
32.   endShape(CLOSE);
33. }

After this, how do incorporate "if the edge length of 2 polygons = a, then join them at that edge. If suppose if each polygon drawn has one of their edge lengths = a, it doesn't matter which polygon joins with which. The choice can be random."...

Also, it is to be noted that that this code doesn't define the polygons with respect to their edge length.

I am working on a research project, and being an infant in the world of processing usage, I have some starting trouble.

For my project, I need to fill a rectangular space with a cluster of standard sized geometric shapes, be it another rectangle, a square, trapezium or any other polygon. I understand that there are many ways of accomplishing this, but I want to do this using Genetic Algorithm. I have understood the concept of GA, but I am unable to relate it to this particular problem.

Could someone please guide me with how I should start going about this code?