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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
/*
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* FTGL - OpenGL font library
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*
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* Copyright (c) 2001-2004 Henry Maddocks <ftgl@opengl.geek.nz>
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* Copyright (c) 2008 Sam Hocevar <sam@zoy.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "config.h"
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#include <math.h>
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#include "FTGL/ftgl.h"
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bool operator == (const FTPoint &a, const FTPoint &b)
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{
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return((a.values[0] == b.values[0]) && (a.values[1] == b.values[1]) && (a.values[2] == b.values[2]));
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}
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bool operator != (const FTPoint &a, const FTPoint &b)
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{
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return((a.values[0] != b.values[0]) || (a.values[1] != b.values[1]) || (a.values[2] != b.values[2]));
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}
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FTPoint FTPoint::Normalise()
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{
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double norm = sqrt(values[0] * values[0]
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+ values[1] * values[1]
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+ values[2] * values[2]);
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if(norm == 0.0)
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{
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return *this;
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}
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FTPoint temp(values[0] / norm, values[1] / norm, values[2] / norm);
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return temp;
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}
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