Interpenetration Box2d

[carisma_fe]

Hi I've a problem using box2d. I made a world with 3 bodies, 2 of which are dynamic (a CircleShape and a PolygonShape) and the third is a static platform (ChainShape), I've disposed these object in the world as showed in the picture just below.



The problem is that the ball interacts well with the platform, while the box interpenetrates as showed in the next picture.



I've tried to add some point in the chainshape just below the box, where the problem happens, and it looks fixed,
but is there an explanation for that?

Thanks a lot for any answer.

[Semtiko]

Hi! Nobody can't solve this problem without your code, because there a million variants of your problem. Just give a parameters of objects and world init.

[carisma_fe]

I've solved the problem.
I passed as parameter to the function createLoop(), a Vector2[] containing the first couple of coordinates (x,y) equal to the last:
like [x0, y0, x1, y1, ... xN,yN, x0 y0].

An array like this works only if you use the function createChain instead createLoop.