PK_ERROR_code_t PK_REGION_make_solid ( --- received arguments --- PK_REGION_t region --- region to be made solid ) This function sets the type of the given region to be solid. The type of region will be set to solid. If region is the exterior region of the owning body, this function will have no effect and region will remain void. If the owning body is a sheet body and region is not the exterior region of the body, then the owning body will become a solid body as a result of calling this function. If the owning body is a solid body and region is an interior void of the body then the owning body will become general as a result of calling this function.