geometric_shapes_utility.h

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#ifndef COAL_GEOMETRIC_SHAPES_UTILITY_H
#define COAL_GEOMETRIC_SHAPES_UTILITY_H
 
#include <vector>
#include "coal/shape/geometric_shapes.h"
#include "coal/BV/BV.h"
#include "coal/internal/BV_fitter.h"
 
namespace coal {
 
namespace details {
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const Box& box,
                                                const Transform3s& tf);
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const Sphere& sphere,
                                                const Transform3s& tf);
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const Ellipsoid& ellipsoid,
                                                const Transform3s& tf);
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const Capsule& capsule,
                                                const Transform3s& tf);
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const Cone& cone,
                                                const Transform3s& tf);
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const Cylinder& cylinder,
                                                const Transform3s& tf);
COAL_DLLAPI std::vector<Vec3s> getBoundVertices(const TriangleP& triangle,
                                                const Transform3s& tf);
template <typename IndexType>
std::vector<Vec3s> getBoundVertices(const ConvexBaseTpl<IndexType>& convex,
                                    const Transform3s& tf) {
  std::vector<Vec3s> result(convex.num_points);
  const std::vector<Vec3s>& points_ = *(convex.points);
  for (std::size_t i = 0; i < convex.num_points; ++i) {
    result[i] = tf.transform(points_[i]);
  }
 
  return result;
}
}  // namespace details
 
template <typename BV, typename S>
inline void computeBV(const S& s, const Transform3s& tf, BV& bv) {
  if (s.getSweptSphereRadius() > 0) {
    COAL_THROW_PRETTY("Swept-sphere radius not yet supported.",
                      std::runtime_error);
  }
  std::vector<Vec3s> convex_bound_vertices = details::getBoundVertices(s, tf);
  fit(&convex_bound_vertices[0], (unsigned int)convex_bound_vertices.size(),
      bv);
}
 
template <>
COAL_DLLAPI void computeBV<AABB, Box>(const Box& s, const Transform3s& tf,
                                      AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Sphere>(const Sphere& s, const Transform3s& tf,
                                         AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Ellipsoid>(const Ellipsoid& e,
                                            const Transform3s& tf, AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Capsule>(const Capsule& s,
                                          const Transform3s& tf, AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Cone>(const Cone& s, const Transform3s& tf,
                                       AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Cylinder>(const Cylinder& s,
                                           const Transform3s& tf, AABB& bv);
template <>
COAL_DLLAPI void computeBV<AABB, ConvexBase32>(const ConvexBase32& s,
                                               const Transform3s& tf, AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, ConvexBase16>(const ConvexBase16& s,
                                               const Transform3s& tf, AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, TriangleP>(const TriangleP& s,
                                            const Transform3s& tf, AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Halfspace>(const Halfspace& s,
                                            const Transform3s& tf, AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<AABB, Plane>(const Plane& s, const Transform3s& tf,
                                        AABB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Box>(const Box& s, const Transform3s& tf,
                                     OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Sphere>(const Sphere& s, const Transform3s& tf,
                                        OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Capsule>(const Capsule& s,
                                         const Transform3s& tf, OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Cone>(const Cone& s, const Transform3s& tf,
                                      OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Cylinder>(const Cylinder& s,
                                          const Transform3s& tf, OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, ConvexBase32>(const ConvexBase32& s,
                                              const Transform3s& tf, OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, ConvexBase16>(const ConvexBase16& s,
                                              const Transform3s& tf, OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Halfspace>(const Halfspace& s,
                                           const Transform3s& tf, OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<RSS, Halfspace>(const Halfspace& s,
                                           const Transform3s& tf, RSS& bv);
 
template <>
COAL_DLLAPI void computeBV<OBBRSS, Halfspace>(const Halfspace& s,
                                              const Transform3s& tf,
                                              OBBRSS& bv);
 
template <>
COAL_DLLAPI void computeBV<kIOS, Halfspace>(const Halfspace& s,
                                            const Transform3s& tf, kIOS& bv);
 
template <>
COAL_DLLAPI void computeBV<KDOP<16>, Halfspace>(const Halfspace& s,
                                                const Transform3s& tf,
                                                KDOP<16>& bv);
 
template <>
COAL_DLLAPI void computeBV<KDOP<18>, Halfspace>(const Halfspace& s,
                                                const Transform3s& tf,
                                                KDOP<18>& bv);
 
template <>
COAL_DLLAPI void computeBV<KDOP<24>, Halfspace>(const Halfspace& s,
                                                const Transform3s& tf,
                                                KDOP<24>& bv);
 
template <>
COAL_DLLAPI void computeBV<OBB, Plane>(const Plane& s, const Transform3s& tf,
                                       OBB& bv);
 
template <>
COAL_DLLAPI void computeBV<RSS, Plane>(const Plane& s, const Transform3s& tf,
                                       RSS& bv);
 
template <>
COAL_DLLAPI void computeBV<OBBRSS, Plane>(const Plane& s, const Transform3s& tf,
                                          OBBRSS& bv);
 
template <>
COAL_DLLAPI void computeBV<kIOS, Plane>(const Plane& s, const Transform3s& tf,
                                        kIOS& bv);
 
template <>
COAL_DLLAPI void computeBV<KDOP<16>, Plane>(const Plane& s,
                                            const Transform3s& tf,
                                            KDOP<16>& bv);
 
template <>
COAL_DLLAPI void computeBV<KDOP<18>, Plane>(const Plane& s,
                                            const Transform3s& tf,
                                            KDOP<18>& bv);
 
template <>
COAL_DLLAPI void computeBV<KDOP<24>, Plane>(const Plane& s,
                                            const Transform3s& tf,
                                            KDOP<24>& bv);
 
COAL_DLLAPI void constructBox(const AABB& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const OBB& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const OBBRSS& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const kIOS& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const RSS& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const KDOP<16>& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const KDOP<18>& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const KDOP<24>& bv, Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const AABB& bv, const Transform3s& tf_bv,
                              Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const OBB& bv, const Transform3s& tf_bv, Box& box,
                              Transform3s& tf);
 
COAL_DLLAPI void constructBox(const OBBRSS& bv, const Transform3s& tf_bv,
                              Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const kIOS& bv, const Transform3s& tf_bv,
                              Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const RSS& bv, const Transform3s& tf_bv, Box& box,
                              Transform3s& tf);
 
COAL_DLLAPI void constructBox(const KDOP<16>& bv, const Transform3s& tf_bv,
                              Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const KDOP<18>& bv, const Transform3s& tf_bv,
                              Box& box, Transform3s& tf);
 
COAL_DLLAPI void constructBox(const KDOP<24>& bv, const Transform3s& tf_bv,
                              Box& box, Transform3s& tf);
 
COAL_DLLAPI Halfspace transform(const Halfspace& a, const Transform3s& tf);
 
COAL_DLLAPI Plane transform(const Plane& a, const Transform3s& tf);
 
COAL_DLLAPI std::array<Halfspace, 2> transformToHalfspaces(
    const Plane& a, const Transform3s& tf);
 
}  // namespace coal
 
#endif