SoUnits.h

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**=======================================================================*/
/*=======================================================================
** Author      : Paul S. Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_UNITS_
#define  _SO_UNITS_
 
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/nodes/SoTransformation.h>
 
//
//  Class: SoUnits
//
//  Node that sets the current length unit, effectively scaling
//  objects to the correct relative sizes.
//
 
class  SoUnits : public SoTransformation {
 
  SO_NODE_HEADER(SoUnits);
 
 public: 
  enum Units { 
    METERS, 
    CENTIMETERS, 
    MILLIMETERS, 
    MICROMETERS, 
    MICRONS, 
    NANOMETERS, 
    ANGSTROMS, 
    KILOMETERS, 
    FEET, 
    INCHES, 
    POINTS, 
    YARDS, 
    MILES, 
    NAUTICAL_MILES
  };
 
  // Fields
  SoSFEnum units;
 
  SoUnits();
 
 private:
  virtual void        doAction(SoAction *action);
  virtual void        callback(SoCallbackAction *action);
  virtual void        getBoundingBox(SoGetBoundingBoxAction *action);
  virtual void        getMatrix(SoGetMatrixAction *action);
  virtual void        GLRender(SoGLRenderAction *action);
  virtual void        pick(SoPickAction *action);
  virtual void        getPrimitiveCount(SoGetPrimitiveCountAction *action);
 
 private:
  static void         initClass();
  static void         exitClass();
 
 private:
  virtual ~SoUnits();
 
 private:
  static const float factor[14];
};
 
#endif /* _SO_UNITS_ */