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 .seealso: `PetscDrawGetCoordinates()` 21 22 @*/ 23 PetscErrorCode PetscDrawSetCoordinates(PetscDraw draw,PetscReal xl,PetscReal yl,PetscReal xr,PetscReal yr) 24 { 25 PetscFunctionBegin; 26 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 27 draw->coor_xl = xl; draw->coor_yl = yl; 28 draw->coor_xr = xr; draw->coor_yr = yr; 29 if (draw->ops->setcoordinates) PetscCall((*draw->ops->setcoordinates)(draw,xl,yl,xr,yr)); 30 PetscFunctionReturn(0); 31 } 32 33 /*@ 34 PetscDrawGetCoordinates - Gets the application coordinates of the corners of 35 the window (or page). 36 37 Not Collective 38 39 Input Parameter: 40 . draw - the drawing object 41 42 Level: advanced 43 44 Output Parameters: 45 + xl - the horizontal coordinate of the lower left corner of the drawing region. 46 . yl - the vertical coordinate of the lower left corner of the drawing region. 47 . xr - the horizontal coordinate of the upper right corner of the drawing region. 48 - yr - the vertical coordinate of the upper right corner of the drawing region. 49 50 .seealso: `PetscDrawSetCoordinates()` 51 52 @*/ 53 PetscErrorCode PetscDrawGetCoordinates(PetscDraw draw,PetscReal *xl,PetscReal *yl,PetscReal *xr,PetscReal *yr) 54 { 55 PetscFunctionBegin; 56 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 57 PetscValidRealPointer(xl,2); 58 PetscValidRealPointer(yl,3); 59 PetscValidRealPointer(xr,4); 60 PetscValidRealPointer(yr,5); 61 *xl = draw->coor_xl; *yl = draw->coor_yl; 62 *xr = draw->coor_xr; *yr = draw->coor_yr; 63 PetscFunctionReturn(0); 64 } 65