OpenMesh
OpenMesh/Core/Geometry/Plane3d.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
00004  *      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen      *
00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------* 
00008  *  This file is part of OpenMesh.                                           *
00009  *                                                                           *
00010  *  OpenMesh is free software: you can redistribute it and/or modify         * 
00011  *  it under the terms of the GNU Lesser General Public License as           *
00012  *  published by the Free Software Foundation, either version 3 of           *
00013  *  the License, or (at your option) any later version with the              *
00014  *  following exceptions:                                                    *
00015  *                                                                           *
00016  *  If other files instantiate templates or use macros                       *
00017  *  or inline functions from this file, or you compile this file and         *
00018  *  link it with other files to produce an executable, this file does        *
00019  *  not by itself cause the resulting executable to be covered by the        *
00020  *  GNU Lesser General Public License. This exception does not however       *
00021  *  invalidate any other reasons why the executable file might be            *
00022  *  covered by the GNU Lesser General Public License.                        *
00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
00025  *  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
00026  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
00027  *  GNU Lesser General Public License for more details.                      *
00028  *                                                                           *
00029  *  You should have received a copy of the GNU LesserGeneral Public          *
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00032  *                                                                           *
00033 \*===========================================================================*/ 
00034 
00035 /*===========================================================================*\
00036  *                                                                           *             
00037  *   $Revision: 362 $                                                         *
00038  *   $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 //=============================================================================
00043 //
00044 //  CLASS Plane3D
00045 //
00046 //=============================================================================
00047 
00048 
00049 #ifndef OPENMESH_PLANE3D_HH
00050 #define OPENMESH_PLANE3D_HH
00051 
00052 
00053 //== INCLUDES =================================================================
00054 
00055 #include <OpenMesh/Core/Geometry/VectorT.hh>
00056 
00057 
00058 //== FORWARDDECLARATIONS ======================================================
00059 
00060 //== NAMESPACES ===============================================================
00061 
00062 namespace OpenMesh {
00063 namespace VDPM {
00064 
00065 //== CLASS DEFINITION =========================================================
00066 
00067               
00074 class Plane3d
00075 {
00076 public:
00077 
00078   typedef OpenMesh::Vec3f         vector_type;
00079   typedef vector_type::value_type value_type;
00080 
00081 public:
00082 
00083   Plane3d()
00084     : d_(0)
00085   { }
00086 
00087   Plane3d(const vector_type &_dir, const vector_type &_pnt)
00088     : n_(_dir), d_(0)
00089   { 
00090     n_.normalize();
00091     d_ = -dot(n_,_pnt); 
00092   }
00093 
00094   value_type signed_distance(const OpenMesh::Vec3f &_p)
00095   {
00096     return  dot(n_ , _p) + d_;
00097   }
00098 
00099   // back compatibility
00100   value_type singed_distance(const OpenMesh::Vec3f &point)
00101   { return signed_distance( point ); }
00102 
00103 public:
00104 
00105   vector_type n_;
00106   value_type  d_;
00107 
00108 };
00109 
00110 //=============================================================================
00111 } // namespace VDPM
00112 } // namespace OpenMesh
00113 //=============================================================================
00114 #endif // OPENMESH_PLANE3D_HH defined
00115 //=============================================================================
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