i am starting with geomerative library, so i still have troubles with the basic. hope somebody could give me a suggestion.

I have a shape and an array of points.

I need to check if the points are inside the shape with the boolean contains, and storage the ones that returns true into an array. The problem is that i can not simply add them into an array list, because for my project i need always the same amount of elements in my storage. 

Probably i will have to use somehow the getPoints() command but i simply can not figure it out.....  

Would somebody please have a suggestion?

Thanks a lot!!

I made this basic sketch just to test on...

2. import geomerative.*;
3. 
   
4. RShape shp;
5. RPoint [] pts=  new RPoint [50];
6. 
   
7. void setup() {
8.   size(1000, 1000);
9.   RG.init( this );
10. }
11. 
    
12. void draw () {
13.   background (255);
14.   stroke(0);
15.   strokeWeight(2);
16. 
    
17. shp = new RShape();
18. 
    
19.   shp.addMoveTo(width/2-200,height/2-100);
20.   shp.addLineTo(width/2+200,height/2-100);
21.   shp.addLineTo(width/2+200,height/2+100);
22.   shp.addLineTo(width/2-200,height/2+100);
23.   shp.addClose();
24.   shp.draw();
25. 
    
26.   float a= shp.getArea();
27.   //println(a);
28.    
29.   strokeWeight(1);
30.    for (int i=0; i<pts.length; i++) {
31.     for (int j=0; j<pts.length;j=j+20) {
32.       pts[i]= new RPoint (j*i, j*i);
33.       ellipse (pts[i].x,pts[i].y,5,5);
34.     }
35.   }
36.   
37.    // RPoint [] valid pts = shp.contains();
38.     
39. }