CvPtIntersector.h

//===========================================================================
// GoTools - SINTEF Geometry Tools
//
// GoTools module: Intersections, version 1.0
//
// 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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//
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// SINTEF ICT, Department of Applied Mathematics,                         
// P.O. Box 124 Blindern,                                                 
// 0314 Oslo, Norway.                                                     
//
// Other licenses are also available for this software, notably licenses
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//===========================================================================
#ifndef _CVPTINTERSECTOR_H
#define _CVPTINTERSECTOR_H


#include "Intersector2Obj.h"


namespace Go {




class CvPtIntersector : public Intersector2Obj {
public:

    CvPtIntersector(boost::shared_ptr<ParamGeomInt> obj1,
                    boost::shared_ptr<ParamGeomInt> obj2,
                    boost::shared_ptr<GeoTol> epsge, 
                    Intersector *prev = 0,
                    int eliminated_parameter = -1,
                    double eliminated_value = 0);

    CvPtIntersector(boost::shared_ptr<ParamGeomInt> obj1,
                    boost::shared_ptr<ParamGeomInt> obj2,
                    double epsge, 
                    Intersector *prev = 0,
                    int eliminated_parameter = -1,
                    double eliminated_value = 0);

    virtual ~CvPtIntersector();

//     // Validation of given intersection results
//     virtual void validate(int level, ValidationStat status);

    virtual int numParams() const
    { return 1; }
        
protected:
    // Data members

    virtual boost::shared_ptr<Intersector> 
    lowerOrderIntersector(boost::shared_ptr<ParamGeomInt> obj1,
                          boost::shared_ptr<ParamGeomInt> obj2, 
                          Intersector* prev = 0,
                          int eliminated_parameter = -1,
                          double eliminated_value = 0);

    virtual int checkCoincidence();

    virtual void microCase();
    
    virtual int updateIntersections();

    virtual int repairIntersections()
    { return 0; }

    virtual int linearCase();

    virtual int doSubdivide();

private:
    int cv_idx_, pt_idx_;  // Indices to the curve object and the
                           // point object, respectivily

    int sortParameterDirections();

    SubdivisionClassification getSubdivisionParameter(double& par);

};


} // namespace Go


#endif  // _CVPTINTERSECTOR_H

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