89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
// Filename: geometricBoundingVolume.h
|
|
// Created by: drose (07Oct99)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// 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."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef GEOMETRICBOUNDINGVOLUME_H
|
|
#define GEOMETRICBOUNDINGVOLUME_H
|
|
|
|
#include "pandabase.h"
|
|
|
|
#include "boundingVolume.h"
|
|
|
|
#include "luse.h"
|
|
#include "lmatrix.h"
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Class : GeometricBoundingVolume
|
|
// Description : 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 LPoint3f &point);
|
|
|
|
// It might be nice to make these template member functions so we
|
|
// could have true STL-style first/last iterators, but that's
|
|
// impossible for virtual functions.
|
|
INLINE_MATHUTIL bool around(const GeometricBoundingVolume **first,
|
|
const GeometricBoundingVolume **last);
|
|
INLINE_MATHUTIL bool around(const LPoint3f *first,
|
|
const LPoint3f *last);
|
|
|
|
INLINE_MATHUTIL int contains(const GeometricBoundingVolume *vol) const;
|
|
INLINE_MATHUTIL int contains(const LPoint3f &point) const;
|
|
INLINE_MATHUTIL int contains(const LPoint3f &a, const LPoint3f &b) const;
|
|
|
|
virtual LPoint3f get_approx_center() const=0;
|
|
virtual void xform(const LMatrix4f &mat)=0;
|
|
|
|
public:
|
|
virtual const GeometricBoundingVolume *as_geometric_bounding_volume() const;
|
|
|
|
protected:
|
|
// Some virtual functions to implement fundamental bounding
|
|
// operations on points in 3-d space.
|
|
|
|
virtual bool extend_by_point(const LPoint3f &point);
|
|
virtual bool around_points(const LPoint3f *first,
|
|
const LPoint3f *last);
|
|
virtual int contains_point(const LPoint3f &point) const;
|
|
virtual int contains_lineseg(const LPoint3f &a, const LPoint3f &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;
|
|
};
|
|
|
|
#include "geometricBoundingVolume.I"
|
|
|
|
#endif
|