VRS - The Virtual Rendering System

version 3.3

nurbs.h

Go to the documentation of this file.

 /**********************************************************************
 VRS - The Virtual Rendering System
 Copyright (C) 2001 Computer Graphics Systems Group at the 
 Hasso-Plattner-Institute, Potsdam, Germany.
 This library is free software; you can redistribute it and/or 
 modify it under the terms of the GNU Lesser General Public 
 License as published by the Free Software Foundation; either 
 version 2.1 of the License, or (at your option) any later version.
 This library 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 Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser+ General Public
 License along with this library; if not, write to the FreeSoftware 
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA, 02111-1307, USA.
 **********************************************************************/
// $Id: nurbs.h 4633 2005-01-03 01:43:11Z klimetschek $
// $Date: 2005-01-03 02:43:11 +0100 (Mon, 03 Jan 2005) $
// $Revision: 4633 $
// $State$
// $Author: klimetschek $
//
// $Log$
// Revision 1.18  2005/01/03 01:43:08  klimetschek
// - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io
// - removed vrs.vcproj
// minor things:
// - added all glutexamples to vrs4glut.sln
// - fixed some problems in glutexamples
// - removed all project references from all VS projects (using solution wide project dependencies instead)
//
// Revision 1.17  2004/11/05 13:58:09  basch
// Class comment changed (Doxygen style)
//
// Revision 1.16  2004/03/12 16:28:39  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.15  2004/01/19 11:43:57  baumann
// serialization mechanism improved
//
// Revision 1.14  2004/01/19 07:28:03  baumann
// serialization mechanism improved
//
// Revision 1.13  2003/11/07 14:19:24  kirsch
// removed leading underscore from include guards
//
// Revision 1.12  2002/10/29 10:32:52  baumann
// macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed
//
// Revision 1.11  2002/03/04 11:08:34  kersting
// directory structure changes
//
// Revision 1.10  2002/03/03 21:44:25  kosta
// VRS_TYPEINFO-macro rewritten
//
// Revision 1.9  2002/02/19 10:34:10  kosta
// undone all changes since 2002-02-15
//
// Revision 1.6  2002/02/12 15:04:34  kosta
// VRS container classes completely rewritten using STL
//
// Revision 1.5  2002/02/05 07:48:25  kosta
// new persistency macros:
//     VRS_SERIALIZABLE(CLASS_NAME);
//     VRS_SERIALIZABLE_ABSTRACT_CLASS(CLASS_NAME);
//     VRS_SERIALIZABLE_NO_SO_CLASS(CLASS_NAME)
//
// Revision 1.4  2002/02/04 13:07:19  kosta
// VRS_SERIALIZABLE macros completely rewritten
//
// Revision 1.3  2002/01/15 16:25:54  kosta
// macros rewritten for a better namespace support
//
// Revision 1.2  2001/11/13 16:36:30  kirsch
// changed line feed to unix style (removed control-M)
//
// Revision 1.1.1.1  2001/06/08 08:09:20  kirsch
// imported alpha-version by olli 
//


#ifndef VRS_NURBS_H
#define VRS_NURBS_H

#include <vrs/container/array.h>
#include <vrs/shape.h>

namespace VRS {

class VRS_CORE_API Nurbs : public Shape {

public:
    Nurbs(
        int orderU, int orderV,
        int nU, int nV,
        double tolerance = 25.0
    );
        // order: degree - 1, e.g., cubic: order==4

    virtual void setCharacteristic(int orderU, int orderV, int nU, int nV);
    virtual int getNU() const;
    virtual int getNV() const;
    virtual int getOrderU() const;
    virtual int getOrderV() const;
    virtual void setVertex(int iu, int iv, const Vector&);
    virtual Vector getVertex(int iu, int iv) const;
    virtual void setWeight(int ui, int vi, double w);
    virtual double getWeight(int ui, int vi) const;
    virtual void loadVertices(Iterator<Vector>*);
    virtual void loadVertices3fv(int novertices, const double*);
    virtual void loadVertices4fv(int novertices, const double*);
    virtual void loadWeights(const Array<double>& weights);
    virtual void setKnotU(int i, double v);
    virtual void setKnotV(int i, double v);
    virtual double getKnotU(int i) const;
    virtual double getKnotV(int i) const;
    virtual void loadKnotsU(const Array<double>& knotsU);
    virtual void loadKnotsV(const Array<double>& knotsV);
    virtual void loadKnotsUfv(int no, const double*);
    virtual void loadKnotsVfv(int no, const double*);
    virtual bool knotsConsistent() const;

    virtual void setSamplingTolerance(double pixel);
    virtual double getSamplingTolerance() const;
    virtual double* verticesRep() const;
    virtual double* knotsRepU() const;
    virtual double* knotsRepV() const;

    virtual Bounds boundingBox() const;

    VRS_TYPEINFO(Nurbs, Shape);
    VRS_SERIALIZABLE(Nurbs);

protected:
    Nurbs(); // only for serialization

private:
    int orderU_, orderV_;
    int nU_, nV_;
    double tolerance_;
    std::vector<double> coords_;
    std::vector<double> knotsU_;
    std::vector<double> knotsV_;
    Vector llf_;
    Vector urb_;
};

inline int Nurbs::getOrderU() const { return orderU_; }
inline int Nurbs::getOrderV() const { return orderV_; }
inline int Nurbs::getNU() const { return nU_; }
inline int Nurbs::getNV() const { return nV_; }
inline double Nurbs::getSamplingTolerance() const { return tolerance_; }

inline double* Nurbs::verticesRep() const { return const_cast<double*>(&coords_[0]); }
inline double* Nurbs::knotsRepU() const { return const_cast<double*>(&knotsU_[0]); }
inline double* Nurbs::knotsRepV() const { return const_cast<double*>(&knotsV_[0]); }

} // namespace VRS

#endif // VRS_NURBS_H

---

Generated on Wed May 23 06:00:13 2012 by Doxygen 1.5.6

© 2001-2010 Hasso-Plattner-Institut | Impressum | Contact