SoPointCloud.h

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#ifndef SMALLCHANGE_SOPOINTCLOUD_H
#define SMALLCHANGE_SOPOINTCLOUD_H

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#include <Inventor/nodes/SoSubNode.h>
#include <Inventor/nodes/SoNonIndexedShape.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoMFFloat.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFEnum.h>

#include <SmallChange/basic.h>

class SoPointCloudP;

class SMALLCHANGE_DLL_API SoPointCloud : public SoNonIndexedShape {
  typedef SoNonIndexedShape inherited;

  SO_NODE_HEADER(SoPointCloud);

public:
  static void initClass(void);
  SoPointCloud(void);

  SoSFInt32 numPoints;
  SoSFFloat detailDistance;
  SoSFFloat itemSize;

  enum Mode {
    ALWAYS_POINTS,
    DISTANCE_BASED,
    ALWAYS_SHAPE
  };
  SoSFEnum mode;

  enum Shape {
    BILLBOARD_DIAMOND,
    CUBE,
    SPHERE
  };
  SoSFEnum shape;

  virtual void GLRender(SoGLRenderAction * action);
  virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action);

protected:
  virtual ~SoPointCloud();

  virtual void generatePrimitives(SoAction * action);
  virtual void computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center);

  virtual SbBool generateDefaultNormals(SoState *, SoNormalCache * nc);
  virtual SbBool generateDefaultNormals(SoState * state,
                                        SoNormalBundle * bundle);

private:
  enum Binding {
    OVERALL = 0,
    PER_VERTEX
  };

  Binding findMaterialBinding(SoState * const state) const;

  SoPointCloudP * pimpl;
};

#endif // !SMALLCHANGE_SOPOINTSET_H