PQP is a library for performing three types of proximity queries on a pair of geometric models composed of triangles:

collision detection - detecting whether the two models overlap, and optionally, all of the triangles that overlap.

distance computation - computing the minimum distance between a pair of models, i.e., the distance between the closest pair of points.

tolerance verification - determining whether two models are closer or farther than a tolerance distance.

-PQP is a library for performing three types proximity of queries on a pair of geometric mode ls composed of triangles : collision detection-detecting whether the tw o models overlap, and optionally, all of the triangles that overlap. distance com putation-computing the minimum distance betw een a pair of models, ie, the distance between the closest pair of points . tolerance verification-determining whethe r two models are closer or farther than a toleran ce distance.