adding a hollow cylinder as a body?

[remoe]

Hi

I have a bowl as a 3D model and try to add a hollow cylinder as a collision wall on the side. Is this possible? I don't want to add multiple boxes on the side of the bowl. Here are the sample:

[lo-th]

yes is possible with the rev version just add static cylinder

[remoe]

thanks, but sorry, I don't get it to work when the other objects are IN the cylinder. They throw out.

[lo-th]

how yes, cylinder only work outside not in the cylinder. you have to use fixe box , you can use many box if fixed. is easy to make simple script for that.

[remoe]

Ok, thanks.

[remoe]

Here is a quick and dirty sample to create some boxes around a circle:

           var r=10.7;
           var box_angle = 20.0;
           var l = Math.abs(r * Math.cos(box_angle)) ;

           for(var a = 0.0; a < 360; a+=box_angle) {
               var a_ = a * (Math.PI/180);
               var x = r * Math.cos(a_);
               var y = r * Math.sin(a_);
               physics.add_static_box(l,2.0,100,[x,y,0],[0,0,a+90]);
           }