Get contact area in cuda

satri

Hello

I have two spheroCyl particles or two sphere particles. I am running them through Cuda. I wanted to compute the contact area of them when I define a variable real coA = contact.getContactNormalArea(), I always get the value zero even though the particles are inside the contact radius. Why is this so, and how can I fix this?

I get zero even if I print 30 significant digits after the decimal point.

satri

if i put that inside this i get 0 if i print outside

if (contact.getNormalPhysicalOverlap() <= REAL_CONST(0.0))

{


    return;

}

I do not get 0. Is there any in built variable that keeps track of this? I am asking this because for sphere i can write based on geometry. but i am not sure what to do for spherocyl.

Stephen Cole

Hi Satri,

Contact overlap is for Polyhedral only, the Spheres and Sphero-Cylinders give overlap as a normal distance not area.

Regards

Stephen