Actual source code: dpoint.c


  2: #include <petsc/private/drawimpl.h>

  4: /*@
  5:    PetscDrawPoint - draws a point onto a drawable.

  7:    Not Collective

  9:    Input Parameters:
 10: +  draw - the drawing context
 11: .  xl - horizatonal coordinate of the point
 12: .  yl - vertical coordinate of the point
 13: -  cl - the color of the point

 15:    Level: beginner

 17: .seealso: `PetscDraw`, `PetscDrawPointPixel()`, `PetscDrawPointSetSize()`, `PetscDrawLine()`, `PetscDrawRectangle()`, `PetscDrawTriangle()`, `PetscDrawEllipse()`,
 18:           `PetscDrawMarker()`, `PetscDrawString()`, `PetscDrawArrow()`
 19: @*/
 20: PetscErrorCode PetscDrawPoint(PetscDraw draw, PetscReal xl, PetscReal yl, int cl)
 21: {
 22:   PetscFunctionBegin;
 24:   PetscUseTypeMethod(draw, point, xl, yl, cl);
 25:   PetscFunctionReturn(PETSC_SUCCESS);
 26: }

 28: /*@
 29:    PetscDrawPointPixel - draws a point onto a drawable, in pixel coordinates

 31:    Not Collective

 33:    Input Parameters:
 34: +  draw - the drawing context
 35: .  x - horizontal pixel coordinates of the point
 36: .  y - vertical pixel coordinates of the point
 37: -  c - the color of the point

 39:    Level: beginner

 41: .seealso: `PetscDraw`, `PetscDrawPoint()`, `PetscDrawPointSetSize()`
 42: @*/
 43: PetscErrorCode PetscDrawPointPixel(PetscDraw draw, int x, int y, int c)
 44: {
 45:   PetscFunctionBegin;
 47:   PetscUseTypeMethod(draw, pointpixel, x, y, c);
 48:   PetscFunctionReturn(PETSC_SUCCESS);
 49: }

 51: /*@
 52:    PetscDrawPointSetSize - Sets the point size for future draws.  The size is
 53:    relative to the user coordinates of the window; 0.0 denotes the natural
 54:    width, 1.0 denotes the entire viewport.

 56:    Not Collective

 58:    Input Parameters:
 59: +  draw - the drawing context
 60: -  width - the width in user coordinates

 62:    Level: advanced

 64:    Note:
 65:    Even a size of zero insures that a single pixel is colored.

 67: .seealso: `PetscDraw`, `PetscDrawPoint()`, `PetscDrawMarker()`
 68: @*/
 69: PetscErrorCode PetscDrawPointSetSize(PetscDraw draw, PetscReal width)
 70: {
 71:   PetscFunctionBegin;
 73:   PetscCheck(width >= 0.0 && width <= 1.0, PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Bad size %g, should be between 0 and 1", (double)width);
 74:   PetscTryTypeMethod(draw, pointsetsize, width);
 75:   PetscFunctionReturn(PETSC_SUCCESS);
 76: }