57 lines
2.3 KiB
C
57 lines
2.3 KiB
C
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/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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#ifndef POLYGON_H
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#define POLYGON_H
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namespace vcg {
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/*
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*/
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template<class PolygonType>
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typename PolygonType::CoordType PolygonBarycenter(PolygonType &F)
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{
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typename PolygonType::CoordType bary(0,0,0);
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for (int i=0;i<F.VN();i++)
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bary+=F.V(i)->P();
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bary/=(typename PolygonType::ScalarType)F.VN();
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return bary;
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}
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template<class PolygonType>
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typename PolygonType::CoordType PolygonNormal(PolygonType &F)
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{
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typename PolygonType::CoordType n(0,0,0);
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for (int i=0;i<F.VN();i++)
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n+=Normal(F.P0(i),F.P(1),F.P2()).Normalize();
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return n.Normalize();
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}
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}
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#endif // POLYGON_H
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