Vector2.cpp
Go to the documentation of this file.
00001 /*
00002  This file is part of the VRender library.
00003  Copyright (C) 2005 Cyril Soler (Cyril.Soler@imag.fr)
00004  Version 1.0.0, released on June 27, 2005.
00005 
00006  http://artis.imag.fr/Members/Cyril.Soler/VRender
00007 
00008  VRender is free software; you can redistribute it and/or modify
00009  it under the terms of the GNU General Public License as published by
00010  the Free Software Foundation; either version 2 of the License, or
00011  (at your option) any later version.
00012 
00013  VRender is distributed in the hope that it will be useful,
00014  but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  GNU General Public License for more details.
00017 
00018  You should have received a copy of the GNU General Public License
00019  along with VRender; if not, write to the Free Software Foundation, Inc.,
00020  51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
00021 */
00022 
00023 /****************************************************************************
00024 
00025  Copyright (C) 2002-2013 Gilles Debunne. All rights reserved.
00026 
00027  This file is part of the QGLViewer library version 2.4.0.
00028 
00029  http://www.libqglviewer.com - contact@libqglviewer.com
00030 
00031  This file may be used under the terms of the GNU General Public License 
00032  versions 2.0 or 3.0 as published by the Free Software Foundation and
00033  appearing in the LICENSE file included in the packaging of this file.
00034  In addition, as a special exception, Gilles Debunne gives you certain 
00035  additional rights, described in the file GPL_EXCEPTION in this package.
00036 
00037  libQGLViewer uses dual licensing. Commercial/proprietary software must
00038  purchase a libQGLViewer Commercial License.
00039 
00040  This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00041  WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00042 
00043 *****************************************************************************/
00044 
00045 #include "Vector2.h"
00046 #include "Vector3.h"
00047 #include <math.h>
00048 
00049 #ifdef WIN32
00050 # include <windows.h>
00051 #endif
00052 
00053 using namespace vrender;
00054 using namespace std;
00055 
00056 const Vector2 Vector2::inf(FLT_MAX, FLT_MAX);
00057 
00059 Vector2::Vector2 ()
00060 {
00061   _xyz[0] = 0.0;
00062   _xyz[1] = 0.0;
00063 }
00064 
00065 // -----------------------------------------------------------------------------
00067 Vector2::~Vector2 ()
00068 {
00069 }
00070 
00071 // -----------------------------------------------------------------------------
00073 Vector2::Vector2 (const Vector2& u)
00074 {
00075   setXY(u[0],u[1]);
00076 }
00077 
00078 // -----------------------------------------------------------------------------
00080 Vector2::Vector2 (double x,double y)
00081 {
00082   setXY(x,y);
00083 }
00084 
00085 Vector2::Vector2 (const Vector3& u)
00086 {
00087   _xyz[0] = u[0];
00088   _xyz[1] = u[1];
00089 }
00090 
00091 // -----------------------------------------------------------------------------
00093 Vector2 vrender::operator- (const Vector2& u)
00094 {
00095   return Vector2(-u[0], -u[1]) ;
00096 }
00097 
00098 
00099 // -----------------------------------------------------------------------------
00101 Vector2 operator* (double r,const Vector2& u)
00102 {
00103   return Vector2(r*u[0], r*u[1]) ;
00104 }
00105 
00106 
00107 // -----------------------------------------------------------------------------
00109 double Vector2::norm () const
00110 {
00111   return sqrt( _xyz[0]*_xyz[0] + _xyz[1]*_xyz[1] );
00112 }
00113 
00114 // -----------------------------------------------------------------------------
00116 double Vector2::squareNorm () const
00117 {
00118   return _xyz[0]*_xyz[0] + _xyz[1]*_xyz[1] ;
00119 }
00120 
00121 // -----------------------------------------------------------------------------
00123 double Vector2::infNorm() const
00124 {
00125   return max(fabs(_xyz[0]),fabs(_xyz[1])) ;
00126 }
00127 
00128 
00129 // -----------------------------------------------------------------------------
00131 std::ostream& operator<< (std::ostream& out,const Vector2& u)
00132 {
00133   out << u[0] << " " << u[1] ;
00134   return ( out );
00135 }
00136 
00137 Vector2 Vector2::mini(const Vector2& v1,const Vector2& v2)
00138 {
00139   return Vector2(min(v1[0],v2[0]),min(v1[1],v2[1])) ;
00140 }
00141 
00142 Vector2 Vector2::maxi(const Vector2& v1,const Vector2& v2)
00143 {
00144   return Vector2(max(v1[0],v2[0]),max(v1[1],v2[1])) ;
00145 }
00146 


octovis
Author(s): Kai M. Wurm , Armin Hornung
autogenerated on Thu Feb 11 2016 23:51:20