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 - horizatonal coordinate of the point 12 . yl - vertical coordinate of the point 13 - cl - the color of the point 14 15 Level: beginner 16 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; 23 PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 24 PetscUseTypeMethod(draw, point, xl, yl, cl); 25 PetscFunctionReturn(PETSC_SUCCESS); 26 } 27 28 /*@ 29 PetscDrawPointPixel - draws a point onto a drawable, in pixel coordinates 30 31 Not Collective 32 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 38 39 Level: beginner 40 41 .seealso: `PetscDraw`, `PetscDrawPoint()`, `PetscDrawPointSetSize()` 42 @*/ 43 PetscErrorCode PetscDrawPointPixel(PetscDraw draw, int x, int y, int c) 44 { 45 PetscFunctionBegin; 46 PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 47 PetscUseTypeMethod(draw, pointpixel, x, y, c); 48 PetscFunctionReturn(PETSC_SUCCESS); 49 } 50 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. 55 56 Not Collective 57 58 Input Parameters: 59 + draw - the drawing context 60 - width - the width in user coordinates 61 62 Level: advanced 63 64 Note: 65 Even a size of zero insures that a single pixel is colored. 66 67 .seealso: `PetscDraw`, `PetscDrawPoint()`, `PetscDrawMarker()` 68 @*/ 69 PetscErrorCode PetscDrawPointSetSize(PetscDraw draw, PetscReal width) 70 { 71 PetscFunctionBegin; 72 PetscValidHeaderSpecific(draw, PETSC_DRAW_CLASSID, 1); 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 } 77