Actual source code: dellipse.c

petsc-3.5.0 2014-06-30
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  2: /*
  3:        Provides the calling sequences for all the basic Draw routines.
  4: */
  5: #include <petsc-private/drawimpl.h>  /*I "petscdraw.h" I*/

  9: /*@
 10:   PetscDrawEllipse - Draws an ellipse onto a drawable.

 12:   Not collective

 14:   Input Parameters:
 15: + draw - The drawing context
 16: . x,y  - The center
 17: . a,b  - The major and minor axes lengths
 18: - c    - The color

 20:   Level: beginner

 22: .keywords: draw, ellipse
 23: .seealso: PetscDrawRectangle(), PetscDrawTriangle()
 24: @*/
 25: PetscErrorCode  PetscDrawEllipse(PetscDraw draw, PetscReal x, PetscReal y, PetscReal a, PetscReal b, int c)
 26: {
 27:   PetscBool      isdrawnull;

 32:   PetscObjectTypeCompare((PetscObject) draw, PETSC_DRAW_NULL, &isdrawnull);
 33:   if (isdrawnull) return(0);
 34:   (*draw->ops->ellipse)(draw, x, y, a, b, c);
 35:   return(0);
 36: }