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Added file for containing polygon based functions (just like triangle)

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Paolo Cignoni 2014-11-12 00:01:32 +00:00
parent 1f369bbf09
commit 144c3ce295
1 changed files with 56 additions and 0 deletions
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vcg/space/polygon.h Normal file
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/****************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
#ifndef POLYGON_H
#define POLYGON_H
namespace vcg {
/*
*/
template<class PolygonType>
typename PolygonType::CoordType PolygonBarycenter(PolygonType &F)
{
typename PolygonType::CoordType bary(0,0,0);
for (int i=0;i<F.VN();i++)
bary+=F.V(i)->P();
bary/=(typename PolygonType::ScalarType)F.VN();
return bary;
}
template<class PolygonType>
typename PolygonType::CoordType PolygonNormal(PolygonType &F)
{
typename PolygonType::CoordType n(0,0,0);
for (int i=0;i<F.VN();i++)
n+=Normal(F.P0(i),F.P(1),F.P2()).Normalize();
return n.Normalize();
}
}
#endif // POLYGON_H