closestPtCurves.h

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//===========================================================================
// GoTools - SINTEF Geometry Tools version 1.1
//
// GoTools module: CORE
//
// Copyright (C) 2000-2007 SINTEF ICT, Applied Mathematics, Norway.
//
// 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 version 2 of the License. 
//
// 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 for more details.                           
//
// You should have received a copy of the GNU General Public License      
// along with this program; if not, write to the Free Software            
// Foundation, Inc.,                                                      
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// Boston, MA  02111-1307, USA.                                           
//
// Contact information: E-mail: tor.dokken@sintef.no                      
// SINTEF ICT, Department of Applied Mathematics,                         
// P.O. Box 124 Blindern,                                                 
// 0314 Oslo, Norway.                                                     
//
// Other licenses are also available for this software, notably licenses
// for:
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//===========================================================================
#ifndef _CLOSESTPTCURVES_H
#define _CLOSESTPTCURVES_H

#include "ParamCurve.h"

namespace Go {


  void closestPtCurves(const ParamCurve* cv1, const ParamCurve* cv2,
                       double& par1, double& par2, double& dist,
                       Point& ptc1, Point& ptc2);

  /*
  void closestPtCurves(ParamCurve* cv1, ParamCurve*cv2, double tmin1,
                       double tmax1, double tmin2, double tmax2,
                       double& par1, double& par2, double& dist,
                       Point& ptc1, Point& ptc2)
  */

  void closestPtCurves(const ParamCurve* cv1, const ParamCurve* cv2, double tmin1,
                       double tmax1, double tmin2, double tmax2,
                       double seed1, double seed2, double& par1, double& par2,
                       double& dist, Point& ptc1, Point& ptc2);

  void computeSeedCvCv(const SplineCurve* pc1, const SplineCurve* pc2,
                       double& seed1, double& seed2);


  void insideParamDomain(double& delta, double acoef, double astart,
                         double aend);


  void nextStep(double& cdist, double& cdiff1, double& cdiff2,
                std::vector<Point>& eval1, std::vector<Point>& eval2);

} // namespace Go

#endif // _CLOSESTPTCURVES_H

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