/home/master/UCL/VisualizationLibrary/src/vlGraphics/BezierSurface.hpp

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/*  Visualization Library                                                             */
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#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