BezierSurface.hpp

Go to the documentation of this file.

/**************************************************************************************/
/*                                                                                    */
/*  Visualization Library                                                             */
/*  http://visualizationlibrary.org                                                   */
/*                                                                                    */
/*  Copyright (c) 2005-2020, Michele Bosi                                             */
/*  All rights reserved.                                                              */
/*                                                                                    */
/*  Redistribution and use in source and binary forms, with or without modification,  */
/*  are permitted provided that the following conditions are met:                     */
/*                                                                                    */
/*  - Redistributions of source code must retain the above copyright notice, this     */
/*  list of conditions and the following disclaimer.                                  */
/*                                                                                    */
/*  - Redistributions in binary form must reproduce the above copyright notice, this  */
/*  list of conditions and the following disclaimer in the documentation and/or       */
/*  other materials provided with the distribution.                                   */
/*                                                                                    */
/*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
/*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
/*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
/*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
/*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
/*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
/*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
/*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
/*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
/*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
/*                                                                                    */
/**************************************************************************************/

#ifndef BezierSurface_INCLUDE_ONCE
#define BezierSurface_INCLUDE_ONCE

#include <vlGraphics/Geometry.hpp>

namespace vl
{
  class VLGRAPHICS_EXPORT BezierPatch: public Object
  {
    VL_INSTRUMENT_CLASS(vl::BezierPatch, Object)

  public:
    typedef std::vector< vec3 > Points;
    BezierPatch(): mX(0), mY(0)
    {
      VL_DEBUG_SET_OBJECT_NAME()
    }
    BezierPatch(int x, int y): mX(0), mY(0)
    {
      VL_DEBUG_SET_OBJECT_NAME()
      resize(x,y);
    }
    void resize(int x, int y);
    int x() const { return mX; }
    int y() const { return mY; }
    Points& points() { return mControlPoints; }
    const Points& points() const { return mControlPoints; }
    vec3& at(int i, int j) { return mControlPoints[i + mX*j]; }
    const vec3& at(int i, int j) const { return mControlPoints[i + mX*j]; }
  protected:
    Points mControlPoints;
    int mX;
    int mY;
  };

  class VLGRAPHICS_EXPORT BezierSurface: public Geometry
  {
    VL_INSTRUMENT_CLASS(vl::BezierSurface, Geometry)

  public:
    BezierSurface(): mDetail(16)
    {
      VL_DEBUG_SET_OBJECT_NAME()
    }

    std::vector< ref<BezierPatch> >& patches() { return mPatches; }
    const std::vector< ref<BezierPatch> >& patches() const { return mPatches; }

    void setDetail(unsigned i) { mDetail = i; }

    unsigned detail() const { return mDetail; }

    void updateBezierSurface(bool gen_tex_coords=true);

  protected:
    std::vector< ref<BezierPatch> > mPatches;
    unsigned mDetail;
  };
}

#endif