Triangle.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2006 Refractions Research Inc.
00007  *
00008  * This is free software; you can redistribute and/or modify it under
00009  * the terms of the GNU Lesser General Public Licence as published
00010  * by the Free Software Foundation. 
00011  * See the COPYING file for more information.
00012  *
00013  **********************************************************************/
00014 
00015 #ifndef GEOS_GEOM_TRIANGLE_H
00016 #define GEOS_GEOM_TRIANGLE_H
00017 
00018 #include <geos/export.h>
00019 #include <geos/geom/Coordinate.h> 
00020 
00021 #include <geos/inline.h>
00022 
00023 namespace geos {
00024 namespace geom { // geos::geom
00025 
00031 class GEOS_DLL Triangle {
00032 public:
00033         Coordinate p0, p1, p2;
00034 
00035         Triangle(const Coordinate& nP0, const Coordinate& nP1, const Coordinate& nP2)
00036                 :
00037                 p0(nP0),
00038                 p1(nP1),
00039                 p2(nP2)
00040         {}
00041 
00049         void inCentre(Coordinate& resultPoint);
00050 
00067         void circumcentre(Coordinate& resultPoint);
00068 
00069 private:
00070 
00085         double det(double m00 , double m01 , double m10 , double m11) const;
00086 
00087 };
00088 
00089 
00090 } // namespace geos::geom
00091 } // namespace geos
00092 
00093 //#ifdef GEOS_INLINE
00094 //# include "geos/geom/Triangle.inl"
00095 //#endif
00096 
00097 #endif // ndef GEOS_GEOM_TRIANGLE_H

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