Spline1FunctionInt.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. 
//
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// 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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// SINTEF ICT, Department of Applied Mathematics,                         
// P.O. Box 124 Blindern,                                                 
// 0314 Oslo, Norway.                                                     
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// Other licenses are also available for this software, notably licenses
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//===========================================================================
#ifndef _SPLINE1FUNCTIONINT_H
#define _SPLINE1FUNCTIONINT_H


#include "Param1FunctionInt.h"


namespace Go {



class SplineCurve;



class Spline1FunctionInt : public Param1FunctionInt {
public:
    explicit Spline1FunctionInt(boost::shared_ptr<ParamCurve> curve);

    explicit Spline1FunctionInt(boost::shared_ptr<ParamCurve> curve, 
                                ParamFunctionInt *parent);

    virtual ~Spline1FunctionInt() {};

    virtual boost::shared_ptr<Param1FunctionInt> 
    makeIntFunction(boost::shared_ptr<ParamCurve> curve);
    
    virtual bool hasInnerKnots(int pardir) const;

    virtual bool hasCriticalValsOrKnots(int pardir) const;

    virtual std::vector<double> getInnerKnotVals(int pardir,
                                                 bool sort = false) const;

    virtual std::vector<double> getCriticalValsAndKnots(int pardir) const; 

    virtual int getMeshSize(int dir);

    virtual double paramFromMesh(int dir, int idx);

    virtual std::vector<double>::iterator getMesh();

    // Accepts non-strict monotonicity, as long as sf is not totally flat.
    virtual bool monotone(Point& dir, double tol=1.0e-15) const;

    // Functions used for coincidence testint

    // Find the interval in which t lies, if t is within tol of an
    // existing knot, t will be changed to that knot.
    virtual int knotIntervalFuzzy(double& t, double tol) const;

    virtual double nextSegmentVal(double par, bool forward) const;

protected:

    // Data members
    boost::shared_ptr<SplineCurve> spcv_; // Same cv as in
                                          // Param1FunctionInt, casted
                                          // to spline.

};


} // namespace Go


#endif // _SPLINE1FUNCTIONINT_H

    

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