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?