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