123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file boundingHexahedron.h
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* @author drose
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* @date 1999-10-03
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*/
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#ifndef BOUNDINGHEXAHEDRON_H
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#define BOUNDINGHEXAHEDRON_H
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#include "pandabase.h"
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#include "finiteBoundingVolume.h"
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#include "frustum.h"
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#include "plane.h"
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#include "coordinateSystem.h"
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/**
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* This defines a bounding convex hexahedron. It is typically used to
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* represent a frustum, but may represent any enclosing convex hexahedron,
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* including simple boxes. However, if all you want is an axis-aligned
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* bounding box, you may be better off with the simpler BoundingBox class.
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*/
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class EXPCL_PANDA_MATHUTIL BoundingHexahedron : public FiniteBoundingVolume {
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public:
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INLINE_MATHUTIL BoundingHexahedron();
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PUBLISHED:
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BoundingHexahedron(const LFrustum &frustum, bool is_ortho,
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CoordinateSystem cs = CS_default);
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BoundingHexahedron(const LPoint3 &fll, const LPoint3 &flr,
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const LPoint3 &fur, const LPoint3 &ful,
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const LPoint3 &nll, const LPoint3 &nlr,
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const LPoint3 &nur, const LPoint3 &nul);
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public:
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ALLOC_DELETED_CHAIN(BoundingHexahedron);
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virtual BoundingVolume *make_copy() const;
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virtual LPoint3 get_min() const;
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virtual LPoint3 get_max() const;
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virtual LPoint3 get_approx_center() const;
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virtual void xform(const LMatrix4 &mat);
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virtual void output(std::ostream &out) const;
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virtual void write(std::ostream &out, int indent_level = 0) const;
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PUBLISHED:
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INLINE_MATHUTIL int get_num_points() const;
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INLINE_MATHUTIL LPoint3 get_point(int n) const;
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MAKE_SEQ(get_points, get_num_points, get_point);
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INLINE_MATHUTIL int get_num_planes() const;
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INLINE_MATHUTIL LPlane get_plane(int n) const;
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MAKE_SEQ(get_planes, get_num_planes, get_plane);
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MAKE_SEQ_PROPERTY(points, get_num_points, get_point);
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MAKE_SEQ_PROPERTY(planes, get_num_planes, get_plane);
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public:
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virtual const BoundingHexahedron *as_bounding_hexahedron() const;
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protected:
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virtual bool extend_other(BoundingVolume *other) const;
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virtual bool around_other(BoundingVolume *other,
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const BoundingVolume **first,
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const BoundingVolume **last) const;
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virtual int contains_other(const BoundingVolume *other) const;
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virtual int contains_point(const LPoint3 &point) const;
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virtual int contains_lineseg(const LPoint3 &a, const LPoint3 &b) const;
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virtual int contains_sphere(const BoundingSphere *sphere) const;
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virtual int contains_box(const BoundingBox *box) const;
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virtual int contains_plane(const BoundingPlane *plane) const;
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virtual int contains_hexahedron(const BoundingHexahedron *hexahedron) const;
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private:
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void set_planes();
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void set_centroid();
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private:
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enum {
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num_points = 8,
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num_planes = 6
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};
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LPoint3 _points[num_points];
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LPlane _planes[num_planes];
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LPoint3 _centroid;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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FiniteBoundingVolume::init_type();
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register_type(_type_handle, "BoundingHexahedron",
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FiniteBoundingVolume::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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friend class BoundingSphere;
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friend class BoundingBox;
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};
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#include "boundingHexahedron.I"
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#endif
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