1 /* 2 Provides the calling sequences for all the basic PetscDraw routines. 3 */ 4 #include <petsc/private/drawimpl.h> /*I "petscdraw.h" I*/ 5 6 /*@ 7 PetscDrawClear - Clears graphical output. All processors must call this routine. 8 Does not return until the draw in context is clear. 9 10 Collective on PetscDraw 11 12 Input Parameters: 13 . draw - the drawing context 14 15 Level: intermediate 16 17 @*/ 18 PetscErrorCode PetscDrawClear(PetscDraw draw) 19 { 20 PetscFunctionBegin; 21 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 22 if (draw->saveonclear) PetscCall(PetscDrawSave(draw)); 23 if (draw->ops->clear) { 24 PetscCall((*draw->ops->clear)(draw)); 25 } 26 PetscFunctionReturn(0); 27 } 28 29 /*@ 30 PetscDrawBOP - Begins a new page or frame on the selected graphical device. 31 32 Logically Collective on PetscDraw 33 34 Input Parameter: 35 . draw - the drawing context 36 37 Level: advanced 38 39 .seealso: PetscDrawEOP(), PetscDrawClear() 40 @*/ 41 PetscErrorCode PetscDrawBOP(PetscDraw draw) 42 { 43 PetscFunctionBegin; 44 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 45 if (draw->ops->beginpage) { 46 PetscCall((*draw->ops->beginpage)(draw)); 47 } 48 PetscFunctionReturn(0); 49 } 50 /*@ 51 PetscDrawEOP - Ends a page or frame on the selected graphical device. 52 53 Logically Collective on PetscDraw 54 55 Input Parameter: 56 . draw - the drawing context 57 58 Level: advanced 59 60 .seealso: PetscDrawBOP(), PetscDrawClear() 61 @*/ 62 PetscErrorCode PetscDrawEOP(PetscDraw draw) 63 { 64 PetscFunctionBegin; 65 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 66 if (draw->ops->endpage) { 67 PetscCall((*draw->ops->endpage)(draw)); 68 } 69 PetscFunctionReturn(0); 70 } 71