SplineSurfaceInt.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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//
// 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:
// - Building commercial software.                                        
// - Building software whose source code you wish to keep private.        
//===========================================================================
#ifndef _SPLINESURFACEINT_H
#define _SPLINESURFACEINT_H


#include "ParamSurfaceInt.h"


namespace Go {



class SplineSurface;
class AlgObj3DInt;



class SplineSurfaceInt : public ParamSurfaceInt {
public:

    explicit SplineSurfaceInt(boost::shared_ptr<ParamSurface> surf);

    explicit SplineSurfaceInt(boost::shared_ptr<ParamSurface> surf,
                              ParamGeomInt *parent);

    virtual ~SplineSurfaceInt(){};

    virtual boost::shared_ptr<ParamSurfaceInt> 
    makeIntObject(boost::shared_ptr<ParamSurface> surf);

    virtual boost::shared_ptr<ParamCurveInt> 
    makeIntCurve(boost::shared_ptr<ParamCurve> crv, ParamGeomInt* parent);

    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();

    virtual DirectionCone directionCone() const;    

    virtual DirectionCone reducedDirectionCone(bool reduce_at_bd[4],
                                               double epsge) const;

    virtual void 
    getBoundaryObjects(std::vector<boost::
                       shared_ptr<BoundaryGeomInt> >& bd_objs);

    virtual int checkPeriodicity(int pardir) const;

    virtual bool isSimple();

    virtual bool isSpline();

    virtual bool isIsoParametric(ParamCurveInt *curve, int dir, double par,
                                 double ptol, double tol);

    virtual double getOptimizedConeAngle(Point& axis1, Point& axis2);

    virtual void knotIntervalFuzzy(double& u, double&v,
                                   double utol, double vtol) const; 

    virtual double nextSegmentVal(int dir, double par,
                                  bool forward, double tol) const;

    virtual RotatedBox getRotatedBox(std::vector<Point>& axis) const;

    virtual void splitAtG0(double angtol,
                           std::vector<boost::
                           shared_ptr<ParamSurfaceInt> >& subG1);

    virtual boost::shared_ptr<ParamSurfaceInt> getNormalSurface() const;

    virtual bool canImplicitize();

    virtual bool implicitize(double tol);

    // @@sbr Todo (tol2)!!!
    virtual bool getImplicit(double tol, double& tol2,
                             AlgObj3DInt& alg_obj_3d_int);

    SplineCurve* constParamCurve(double parameter,
                                 bool pardir_is_u) const;

    boost::shared_ptr<SplineSurface> getSplineSurface()
    { return spsf_; }

    virtual boost::shared_ptr<const SplineSurface> splineSurface() const
    { return spsf_; }

    void setImplicitDeg();

protected:
    // Data members
    boost::shared_ptr<SplineSurface> spsf_;   // boost::shared_ptr to
                                              // this surface
    mutable boost::shared_ptr<SplineSurface> normalsf_;  // Normal
                                                         // surface
                                                         // corresponding
                                                         // to this
                                                         // spline
                                                         // surface

private:

};


} // namespace Go


#endif // _SPLINESURFACEINT_H

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