SoLinearProfile.h

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**=======================================================================*/
/*=======================================================================
** Author      : Thad Beier (MMM yyyy)
** Modified by : Dave Immel (MMM yyyy)
** Modified by : Paul Strauss (MMM yyyy)
**=======================================================================*/
/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Modified by : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _SO_LINEAR_PROFILE_
#define  _SO_LINEAR_PROFILE_
 
#include <Inventor/nodes/SoProfile.h>
 
//
//  Class: SoLinearProfile
//
//  Piecwise linear 2D profile. The profile is defined as line
//  segments between the current profile coordinates.
//
 
// This value, when used as the last value of the index field, 
// the coordinates, starting from the last index+1 (zero if there is
// only one value in the index field).
#define SO_LINEAR_PROFILE_USE_REST_OF_VERTICES  (-1)
 
class  SoLinearProfile : public SoProfile{
 
  SO_NODE_HEADER(SoLinearProfile);
 
 public:
  // Inherits all fields from parent class
 
  SoLinearProfile();
 
 private:
  // Returns a profile as a trim curve.
  // floatsPerVec will be either 2 or 3 depending on whether the
  // curve is non-rational or rational.
  virtual void        getTrimCurve(SoState *state, int32_t &numPoints,
                                   float *&points, int &floatsPerVec,
                                   int32_t &numKnots, float *&knotVector);
 
  // Returns vertices defining the profile
  virtual void        getVertices(SoState *state, int32_t &nVertices,
                                  SbVec2f *&vertices);
 
 private:
  static void         initClass();
  static void         exitClass();
 
 private:
  virtual ~SoLinearProfile();
};
 
#endif /* _SO_LINEAR_PROFILE_ */