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 PetscErrorCode ierr; 26 27 PetscFunctionBegin; 28 PetscValidHeaderSpecific(draw,PETSC_DRAW_CLASSID,1); 29 draw->coor_xl = xl; draw->coor_yl = yl; 30 draw->coor_xr = xr; draw->coor_yr = yr; 31 if (draw->ops->setcoordinates) { 32 ierr = (*draw->ops->setcoordinates)(draw,xl,yl,xr,yr);CHKERRQ(ierr); 33 } 34 PetscFunctionReturn(0); 35 } 36 37 /*@ 38 PetscDrawGetCoordinates - Gets the application coordinates of the corners of 39 the window (or page). 40 41 Not Collective 42 43 Input Parameter: 44 . draw - the drawing object 45 46 Level: advanced 47 48 Output Parameters: 49 + xl - the horizontal coordinate of the lower left corner of the drawing region. 50 . yl - the vertical coordinate of the lower left corner of the drawing region. 51 . xr - the horizontal coordinate of the upper right corner of the drawing region. 52 - yr - the vertical coordinate of the upper right corner of the drawing region. 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