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