distance.h

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#ifndef COAL_DISTANCE_H
#define COAL_DISTANCE_H
 
#include "coal/collision_object.h"
#include "coal/collision_data.h"
#include "coal/distance_func_matrix.h"
#include "coal/timings.h"
 
namespace coal {
 
COAL_DLLAPI Scalar distance(const CollisionObject* o1,
                            const CollisionObject* o2,
                            const DistanceRequest& request,
                            DistanceResult& result);
 
COAL_DLLAPI Scalar distance(const CollisionGeometry* o1, const Transform3s& tf1,
                            const CollisionGeometry* o2, const Transform3s& tf2,
                            const DistanceRequest& request,
                            DistanceResult& result);
 
class COAL_DLLAPI ComputeDistance {
 public:
  ComputeDistance(const CollisionGeometry* o1, const CollisionGeometry* o2);
 
  Scalar operator()(const Transform3s& tf1, const Transform3s& tf2,
                    const DistanceRequest& request,
                    DistanceResult& result) const;
 
  bool operator==(const ComputeDistance& other) const {
    return o1 == other.o1 && o2 == other.o2 && swap_geoms == other.swap_geoms &&
           solver == other.solver && func == other.func;
  }
 
  bool operator!=(const ComputeDistance& other) const {
    return !(*this == other);
  }
 
  virtual ~ComputeDistance() {};
 
 protected:
  // These pointers are made mutable to let the derived classes to update
  // their values when updating the collision geometry (e.g. creating a new
  // one). This feature should be used carefully to avoid any mis usage (e.g,
  // changing the type of the collision geometry should be avoided).
  mutable const CollisionGeometry* o1;
  mutable const CollisionGeometry* o2;
 
  mutable GJKSolver solver;
 
  DistanceFunctionMatrix::DistanceFunc func;
  bool swap_geoms;
 
  virtual Scalar run(const Transform3s& tf1, const Transform3s& tf2,
                     const DistanceRequest& request,
                     DistanceResult& result) const;
 
 public:
  EIGEN_MAKE_ALIGNED_OPERATOR_NEW
};
 
}  // namespace coal
 
#endif