void ViewRight();
void ViewFront();
void ViewBack();
+
+ /* view parameters */
+ const char* getViewParameters();
+ void setCameraPosition( double x, double y, double z );
+ void setCameraFocalPoint( double x, double y, double z );
+ void setCameraViewUp( double x, double y, double z );
+ void setViewScale( double parallelScale,double x, double y, double z );
};