95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
// Filename: boundingLine.h
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// Created by: drose (04Jul00)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef BOUNDINGLINE_H
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#define BOUNDINGLINE_H
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#include <pandabase.h>
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#include "geometricBoundingVolume.h"
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///////////////////////////////////////////////////////////////////
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// Class : BoundingLine
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// Description : This funny bounding volume is an infinite line with
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// no thickness and extending to infinity in both
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// directions.
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//
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// Note that it *always* extends in both directions,
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// despite the fact that you specify two points to the
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// constructor. These are not endpoints, they are two
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// arbitrary points on the line.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA BoundingLine : public GeometricBoundingVolume {
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PUBLISHED:
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INLINE_MATHUTIL BoundingLine();
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INLINE_MATHUTIL BoundingLine(const LPoint3f &a, const LPoint3f &b);
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public:
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virtual BoundingVolume *make_copy() const;
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virtual LPoint3f get_approx_center() const;
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virtual void xform(const LMatrix4f &mat);
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virtual void output(ostream &out) const;
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PUBLISHED:
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INLINE_MATHUTIL const LPoint3f &get_point_a() const;
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INLINE_MATHUTIL LPoint3f get_point_b() 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 bool extend_by_line(const BoundingLine *line);
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virtual int contains_sphere(const BoundingSphere *sphere) const;
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float sqr_dist_to_line(const LPoint3f &point) const;
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private:
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LPoint3f _origin;
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LVector3f _vector;
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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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GeometricBoundingVolume::init_type();
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register_type(_type_handle, "BoundingLine",
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GeometricBoundingVolume::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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};
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#include "boundingLine.I"
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#endif
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