1 #include <petsc/private/drawimpl.h> /*I "petscdraw.h" I*/ 2 3 /*@ 4 PetscDrawPoint - draws a point onto a drawable. 5 6 Not Collective 7 8 Input Parameters: 9 + draw - the drawing context 10 . xl - horizatonal coordinate of the point 11 . yl - vertical coordinate of the point 12 - cl - the color of the point 13 14 Level: beginner 15 16 .seealso: `PetscDraw`, `PetscDrawPointPixel()`, `PetscDrawPointSetSize()`, `PetscDrawLine()`, `PetscDrawRectangle()`, `PetscDrawTriangle()`, `PetscDrawEllipse()`, 17 `PetscDrawMarker()`, `PetscDrawString()`, `PetscDrawArrow()` 18 @*/ 19 PetscErrorCode PetscDrawPoint(PetscDraw draw, PetscReal xl, PetscReal yl, int cl) 20 { 21 PetscFunctionBegin; 22 PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 23 PetscUseTypeMethod(draw, point, xl, yl, cl); 24 PetscFunctionReturn(PETSC_SUCCESS); 25 } 26 27 /*@ 28 PetscDrawPointPixel - draws a point onto a drawable, in pixel coordinates 29 30 Not Collective 31 32 Input Parameters: 33 + draw - the drawing context 34 . x - horizontal pixel coordinates of the point 35 . y - vertical pixel coordinates of the point 36 - c - the color of the point 37 38 Level: beginner 39 40 .seealso: `PetscDraw`, `PetscDrawPoint()`, `PetscDrawPointSetSize()` 41 @*/ 42 PetscErrorCode PetscDrawPointPixel(PetscDraw draw, int x, int y, int c) 43 { 44 PetscFunctionBegin; 45 PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 46 PetscUseTypeMethod(draw, pointpixel, x, y, c); 47 PetscFunctionReturn(PETSC_SUCCESS); 48 } 49 50 /*@ 51 PetscDrawPointSetSize - Sets the point size for future draws. The size is 52 relative to the user coordinates of the window; 0.0 denotes the natural 53 width, 1.0 denotes the entire viewport. 54 55 Not Collective 56 57 Input Parameters: 58 + draw - the drawing context 59 - width - the width in user coordinates 60 61 Level: advanced 62 63 Note: 64 Even a size of zero insures that a single pixel is colored. 65 66 .seealso: `PetscDraw`, `PetscDrawPoint()`, `PetscDrawMarker()` 67 @*/ 68 PetscErrorCode PetscDrawPointSetSize(PetscDraw draw, PetscReal width) 69 { 70 PetscFunctionBegin; 71 PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 72 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); 73 PetscTryTypeMethod(draw, pointsetsize, width); 74 PetscFunctionReturn(PETSC_SUCCESS); 75 } 76