something like this:  http://www.openprocessing.org/sketch/60524

could you please help me

kind regards,
diane



ArrayList point1 = new ArrayList();

void setup(){
size(1076,672);
smooth();
strokeWeight(2);
}

void draw(){
background(255);
beginShape();
fill(0,95);
for(int i = 0; i < point1.size(); i++){
vertex(((Point)point1.get(i)).x, ((Point)point1.get(i)).y);
}
endShape(CLOSE); 
}

class Point {
int x, y;
Point(int a, int b) {
x = a;
y = b;
}
}

void mousePressed(){
if(mouseButton == LEFT){
point1.add(new Point(mouseX, mouseY));
}
}