Function: PGELLIPSE Purpose: Draw ellipse (PGPLOT) Category: PLOTTING File: pgellipse.c Author: M. Vogelaar Use: CALL PGELLIPSE( XCENTRE, Input real YCENTRE, Input real MAJOR, Input real MINOR, Input real PA, Input real STARTANG, Input real ENDANG, Input real DELTA ) Input real XCENTRE X position of centre of ellipse in world coordinates. YCENTRE Same for Y position MAJOR Major axis of ellipse. MINOR Minor axis of ellipse. PA Position angle of ellipse wrt. pos x-axis in degrees. STARTANG Angle to start drawing ellipse (Degrees). ENDANG Angle to end drawing the ellipse (Degrees). DELTA Calculate plot points from STARTANG to ENDANG in steps of DELTA degrees. Note: The length of MAJOR can be smaller than the length of MINOR! Description: Draw an ellipse with specifications (origin and axes) in world coordinates. The position angle of the major axis is wrt. the pos. x-axis. The ellipse is rotated counter-clockwise. The plotting starts at 'STARTANG' degrees from the major axis and stops at 'ENDANG' degrees from this major axis. Updates: Aug 03, 1992: VOG, Document created Jun 08, 2000: VOG, Added DELTA