1 2 /* 3 Provides the calling sequences for all the basic PetscDraw routines. 4 */ 5 #include <petsc/private/drawimpl.h> /*I "petscdraw.h" I*/ 6 7 /*@ 8 PetscDrawSetCoordinates - Sets the application coordinates of the corners of 9 the window (or page). 10 11 Not collective 12 13 Input Parameters: 14 + draw - the drawing object 15 - xl,yl,xr,yr - the coordinates of the lower left corner and upper 16 right corner of the drawing region. 17 18 Level: advanced 19 20 21 .seealso: PetscDrawGetCoordinates() 22 23 @*/ 24 PetscErrorCode PetscDrawSetCoordinates(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr) 25 { 26 PetscErrorCode ierr; 27 28 PetscFunctionBegin; 29 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 30 draw->coor_xl = xl; draw->coor_yl = yl; 31 draw->coor_xr = xr; draw->coor_yr = yr; 32 if (draw->ops->setcoordinates) { 33 ierr = (*draw->ops->setcoordinates)(draw,xl,yl,xr,yr);CHKERRQ(ierr); 34 } 35 PetscFunctionReturn(0); 36 } 37 38 /*@ 39 PetscDrawGetCoordinates - Gets the application coordinates of the corners of 40 the window (or page). 41 42 Not Collective 43 44 Input Parameter: 45 . draw - the drawing object 46 47 Level: advanced 48 49 Ouput Parameters: 50 . xl,yl,xr,yr - the coordinates of the lower left corner and upper 51 right corner of the drawing region. 52 53 54 .seealso: PetscDrawSetCoordinates() 55 56 @*/ 57 PetscErrorCode PetscDrawGetCoordinates(PetscDraw draw,PetscReal *xl,PetscReal *yl,PetscReal *xr,PetscReal *yr) 58 { 59 PetscFunctionBegin; 60 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 61 PetscValidRealPointer(xl,2); 62 PetscValidRealPointer(yl,3); 63 PetscValidRealPointer(xr,4); 64 PetscValidRealPointer(yr,5); 65 *xl = draw->coor_xl; *yl = draw->coor_yl; 66 *xr = draw->coor_xr; *yr = draw->coor_yr; 67 PetscFunctionReturn(0); 68 } 69