Hi,

I've got a sketch here wich is supposed to draw triangles like a 'hexagonal-concentric-snail'
http://studio.sketchpad.cc/sp/pad/view/4nB53waVBp/latest
(I give you the sketchpad version beacause the code don't run in Processing plus i need it in PJS)

You can see that all the colored triangle are placed manually, after the last position

1. int w = triangleWidth;
   int h = triangleHeight;
   
   
2. 
   
3. alTrianglesOffset.add({w, 0}); // goes right from the 1st position
4. alTrianglesOffset.add({0, h/2}); // goes down from the last position
5. alTrianglesOffset.add({0, h/2}); // goes down from the last position
6. alTrianglesOffset.add({-w, 0}); // goes left from the last position
7. alTrianglesOffset.add({0, -h/2}); // goes up from the last position

I'm trying to make this sketch build more dynamicaly, because it's supposed to be connected with external data, but i can't find a way to have something like

1. for (int i=0;i<TriangleNumber; i++)
2. {
3.       xPos = "magic maths goes here" *w;
4.       xPos = "magic maths goes here" *h/2;
5.       alTrianglesOffset.add({xPos, yPos});
6. }

Any idea are welcome, i'm completely lost :(
Thx