PetscViewerDrawOpen#

Opens a PetscDraw window for use as a PetscViewer with type PETSCVIEWERDRAW. If you want to do graphics in this window, you must call PetscViewerDrawGetDraw() and perform the graphics on the PetscDraw object.

Synopsis#

#include "petscdraw.h" 
#include "petscviewer.h" 
PetscErrorCode PetscViewerDrawOpen(MPI_Comm comm, const char display[], const char title[], int x, int y, int w, int h, PetscViewer *viewer)

Collective

Input Parameters#

  • comm - communicator that will share window

  • display - the X display on which to open, or null for the local machine

  • title - the title to put in the title bar, or null for no title

  • x, y - the screen coordinates of the upper left corner of window, or use PETSC_DECIDE

  • w, h - window width and height in pixels, or may use PETSC_DECIDE or PETSC_DRAW_FULL_SIZE, PETSC_DRAW_HALF_SIZE, PETSC_DRAW_THIRD_SIZE, PETSC_DRAW_QUARTER_SIZE

Output Parameter#

Format Options#

Options Database Keys#

  • -draw_type - use x or null

  • -nox - Disables all x-windows output

  • -display - Specifies name of machine for the X display

  • -geometry <x,y,w,h> - allows setting the window location and size

  • -draw_pause - Sets time (in seconds) that the program pauses after PetscDrawPause() has been called (0 is default, -1 implies until user input).

Note for Fortran Programmers#

Whenever indicating null character data in a Fortran code, PETSC_NULL_CHARACTER must be employed; using NULL is not correct for character data! Thus, PETSC_NULL_CHARACTER can be used for the display and title input parameters.

See Also#

Viewers: Looking at PETSc Objects, PETSCVIEWERDRAW, PetscDrawCreate(), PetscViewerDestroy(), PetscViewerDrawGetDraw(), PetscViewerCreate(), PETSC_VIEWER_DRAW_, PETSC_VIEWER_DRAW_WORLD, PETSC_VIEWER_DRAW_SELF

Level#

beginner

Location#

src/sys/classes/viewer/impls/draw/drawv.c

Examples#

src/vec/vec/tutorials/ex3.c.html
src/vec/vec/tutorials/ex3f.F90.html
src/dm/tutorials/ex1.c.html
src/dm/tutorials/ex2.c.html
src/dm/tutorials/ex5.c.html
src/snes/tutorials/ex21.c.html
src/snes/tutorials/ex22.c.html
src/snes/tutorials/ex2.c.html
src/snes/tutorials/ex3.c.html
src/ts/tutorials/ex21.c.html
src/ts/tutorials/ex2.c.html


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Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages