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SegmentIntersection.h

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00001 //------------------------------------------------------------------------------
00002 // Lamp : Open source game middleware
00003 // Copyright (C) 2004  Junpei Ohtani ( Email : junpee@users.sourceforge.jp )
00004 //
00005 // This library is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU Lesser General Public
00007 // License as published by the Free Software Foundation; either
00008 // version 2.1 of the License, or (at your option) any later version.
00009 //
00010 // This library is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013 // Lesser General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU Lesser General Public
00016 // License along with this library; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018 //------------------------------------------------------------------------------
00019 
00020 /** @file
00021  * セグメント交差ヘッダ
00022  * @author Junpee
00023  */
00024 
00025 #ifndef SEGMENT_INTERSECTION_H_
00026 #define SEGMENT_INTERSECTION_H_
00027 
00028 namespace Lamp{
00029 
00030 class Segment;
00031 class Sphere;
00032 class Triangle;
00033 
00034 //------------------------------------------------------------------------------
00035 /**
00036  * セグメント交差
00037  */
00038 class SegmentIntersection{
00039 public:
00040     //--------------------------------------------------------------------------
00041     // 点
00042     //--------------------------------------------------------------------------
00043     /**
00044      * 点交差
00045      * @param segment セグメント
00046      * @param point 点
00047      * @param range 交差範囲
00048      * @return 交差していればtrue
00049      */
00050     static bool intersect(const Segment& segment, const Vector3& point,
00051         float range = Math::epsilon);
00052 
00053     //--------------------------------------------------------------------------
00054     // セグメント
00055     //--------------------------------------------------------------------------
00056     /**
00057      * 交差
00058      * @param segment0 セグメント
00059      * @param segment1 セグメント
00060      * @param range 交差範囲
00061      * @return 交差していればtrue
00062      */
00063     static bool intersect(const Segment& segment0, const Segment& segment1,
00064         float range = Math::epsilon);
00065 
00066     //--------------------------------------------------------------------------
00067     // 球
00068     //--------------------------------------------------------------------------
00069     /**
00070      * 球交差
00071      * @param segment セグメント
00072      * @param sphere 球
00073      * @return 交差していればtrue
00074      */
00075     static bool intersect(const Segment& segment, const Sphere& sphere);
00076 
00077     //--------------------------------------------------------------------------
00078     // 三角
00079     //--------------------------------------------------------------------------
00080     /**
00081      * 三角交差
00082      * @param segment セグメント
00083      * @param triangle 三角
00084      * @return 交差していればtrue
00085      */
00086     static bool intersect(const Segment& segment, const Triangle& triangle);
00087 
00088 private:
00089     //--------------------------------------------------------------------------
00090     // コンストラクタの隠蔽
00091     SegmentIntersection();
00092 
00093 };
00094 
00095 //------------------------------------------------------------------------------
00096 } // End of namespace Lamp
00097 #endif // End of SEGMENT_INTERSECTION_H_
00098 //------------------------------------------------------------------------------

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