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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 __VCG_SIMILARITY2_H
#define __VCG_SIMILARITY2_H
namespace vcg
{
/*
This class codify a similarity transformation in 2D
The applied transformation is exactly the same of the Similarity class
Tra(Sca(Rot(P)))
*/
template <class SCALAR_TYPE>
class Similarity2
{
public:
Similarity2():rotRad(0),tra(0,0),sca(1) {}
SCALAR_TYPE rotRad;
Point2<SCALAR_TYPE> tra;
SCALAR_TYPE sca;
};
template <class SCALAR_TYPE>
Point2<SCALAR_TYPE> operator*(const Similarity2<SCALAR_TYPE> &m, const Point2<SCALAR_TYPE> &p) {
Point2<SCALAR_TYPE> r = p;
// Apply Rotation to point
r.Rotate(m.rotRad);
r *= m.sca;
r += m.tra;
return r;
}
typedef Similarity2<float> Similarity2f;
typedef Similarity2<double> Similarity2d;
} // end namespace vcg
#endif // __VCG_SIMILARITY2_H
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