92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/**
|
|
* PANDA 3D SOFTWARE
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
*
|
|
* All use of this software is subject to the terms of the revised BSD
|
|
* license. You should have received a copy of this license along
|
|
* with this source code in a file named "LICENSE."
|
|
*
|
|
* @file geometricBoundingVolume.h
|
|
* @author drose
|
|
* @date 1999-10-07
|
|
*/
|
|
|
|
#ifndef GEOMETRICBOUNDINGVOLUME_H
|
|
#define GEOMETRICBOUNDINGVOLUME_H
|
|
|
|
#include "pandabase.h"
|
|
|
|
#include "boundingVolume.h"
|
|
|
|
#include "luse.h"
|
|
#include "lmatrix.h"
|
|
|
|
/**
|
|
* This is another abstract class, for a general class of bounding volumes
|
|
* that actually enclose points in 3-d space, such as BSP's and bounding
|
|
* spheres.
|
|
*/
|
|
class EXPCL_PANDA_MATHUTIL GeometricBoundingVolume : public BoundingVolume {
|
|
public:
|
|
INLINE_MATHUTIL GeometricBoundingVolume();
|
|
|
|
PUBLISHED:
|
|
INLINE_MATHUTIL bool extend_by(const GeometricBoundingVolume *vol);
|
|
INLINE_MATHUTIL bool extend_by(const LPoint3 &point);
|
|
|
|
public:
|
|
// It might be nice to make these template member functions so we could have
|
|
// true STL-style firstlast iterators, but that's impossible for virtual
|
|
// functions.
|
|
INLINE_MATHUTIL bool around(const GeometricBoundingVolume **first,
|
|
const GeometricBoundingVolume **last);
|
|
INLINE_MATHUTIL bool around(const LPoint3 *first, const LPoint3 *last);
|
|
|
|
PUBLISHED:
|
|
INLINE_MATHUTIL int contains(const GeometricBoundingVolume *vol) const;
|
|
INLINE_MATHUTIL int contains(const LPoint3 &point) const;
|
|
INLINE_MATHUTIL int contains(const LPoint3 &a, const LPoint3 &b) const;
|
|
|
|
virtual LPoint3 get_approx_center() const=0;
|
|
virtual void xform(const LMatrix4 &mat)=0;
|
|
|
|
public:
|
|
virtual GeometricBoundingVolume *as_geometric_bounding_volume() final;
|
|
virtual const GeometricBoundingVolume *as_geometric_bounding_volume() const final;
|
|
|
|
protected:
|
|
// Some virtual functions to implement fundamental bounding operations on
|
|
// points in 3-d space.
|
|
|
|
virtual bool extend_by_point(const LPoint3 &point);
|
|
virtual bool around_points(const LPoint3 *first,
|
|
const LPoint3 *last);
|
|
virtual int contains_point(const LPoint3 &point) const;
|
|
virtual int contains_lineseg(const LPoint3 &a, const LPoint3 &b) const;
|
|
|
|
|
|
public:
|
|
static TypeHandle get_class_type() {
|
|
return _type_handle;
|
|
}
|
|
static void init_type() {
|
|
BoundingVolume::init_type();
|
|
register_type(_type_handle, "GeometricBoundingVolume",
|
|
BoundingVolume::get_class_type());
|
|
}
|
|
virtual TypeHandle get_type() const {
|
|
return get_class_type();
|
|
}
|
|
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
|
|
|
|
private:
|
|
static TypeHandle _type_handle;
|
|
};
|
|
|
|
// We can safely redefine this as a no-op.
|
|
template<>
|
|
INLINE void PointerToBase<GeometricBoundingVolume>::update_type(To *ptr) {}
|
|
|
|
#include "geometricBoundingVolume.I"
|
|
|
|
#endif
|