PointNode.hh

/*===========================================================================*\
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\*===========================================================================*/
 
 
 
 
 
 
//=============================================================================
//
//  CLASS PointNode
//
//=============================================================================
 
 
#ifndef ACG_POINTNODE_HH
#define ACG_POINTNODE_HH
 
 
//== INCLUDES =================================================================
 
#include "BaseNode.hh"
#include "DrawModes.hh"
#include <ACG/GL/VertexDeclaration.hh>
#include <vector>
 
//== NAMESPACES ===============================================================
 
namespace ACG {
namespace SceneGraph {
 
//== CLASS DEFINITION =========================================================
 
              
 
class ACGDLLEXPORT PointNode : public BaseNode
{
public:
   
  // typedefs
  typedef std::vector<ACG::Vec3d>      PointVector;
  typedef PointVector::iterator        PointIter;
  typedef PointVector::const_iterator  ConstPointIter;
  typedef std::vector<ACG::Vec4f>      ColorVector;
  typedef ColorVector::iterator        ColorIter;
  typedef ColorVector::const_iterator  ConstColorIter;
 
 
  PointNode( BaseNode*         _parent=0,
         const std::string &  _name="<PointNode>" )
    : BaseNode(_parent, _name)
  {}
 
  ~PointNode() {}
 
  ACG_CLASSNAME(PointNode);
 
  DrawModes::DrawMode availableDrawModes() const override;
 
  void boundingBox(Vec3d& _bbMin, Vec3d& _bbMax) override;
 
  void draw(GLState& _state, const DrawModes::DrawMode& _drawMode) override;
 
  void getRenderObjects(IRenderer* _renderer, GLState&  _state , const DrawModes::DrawMode&  _drawMode , const Material* _mat) override;
 
  void reserve(unsigned int _np, unsigned int _nn, unsigned int _nc) {
    points_.reserve(_np); normals_.reserve(_nn); colors_.reserve(_nc);
  }
 
  void add_point(const ACG::Vec3d& _p) { points_.push_back(_p); vbo_needs_update_ = true;}
  void add_normal(const ACG::Vec3d& _n) { normals_.push_back(_n); vbo_needs_update_ = true;}
  void add_color(const ACG::Vec4f& _c) { colors_.push_back(_c); vbo_needs_update_ = true;}
 
  size_t n_points() const { return points_.size(); }
 
  void clear_points() { points_.clear(); vbo_needs_update_ = true;}
  void clear_normals() { normals_.clear(); vbo_needs_update_ = true;}
  void clear_colors() { colors_.clear(); vbo_needs_update_ = true;}
  void clear() { clear_points(); clear_normals(); clear_colors(); }
 
  const PointVector& points() const { return points_; }
  const PointVector& normals() const { return normals_; }
  const ColorVector& colors() const { return colors_; }
 
 
private:
 
  void update_vbo();
  PointVector  points_, normals_;
  ColorVector  colors_;
 
  GLuint vbo_ = 0;
  std::vector<float> vbo_data_;
  bool vbo_needs_update_ = true;
 
  VertexDeclaration vertexDecl_;
};
 
 
//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================
#endif // ACG_POINTNODE_HH defined
//=============================================================================