Actual source code: drawreg.c

  1: /*
  2:        Provides the registration process for PETSc PetscDraw routines
  3: */
  4: #include <petsc/private/drawimpl.h>
  5: #if PetscDefined(HAVE_SAWS)
  6: #include <petscviewersaws.h>
  7: #endif

  9: /*
 10:    Contains the list of registered PetscDraw routines
 11: */
 12: PetscFunctionList PetscDrawList = NULL;

 14: /*@
 15:   PetscDrawView - Prints the `PetscDraw` data structure.

 17:   Collective

 19:   Input Parameters:
 20: + indraw - the `PetscDraw` context
 21: - viewer - visualization context

 23:    See PetscDrawSetFromOptions() for options database keys

 25:   Note:
 26:   The available visualization contexts include
 27: +     `PETSC_VIEWER_STDOUT_SELF` - standard output (default)
 28: -     `PETSC_VIEWER_STDOUT_WORLD` - synchronized standard
 29:   output where only the first processor opens
 30:   the file.  All other processors send their
 31:   data to the first processor to print.

 33:   The user can open an alternative visualization context with
 34:   `PetscViewerASCIIOpen()` - output to a specified file.

 36:   Level: beginner

 38: .seealso: `PetscDraw`, `PetscViewerASCIIOpen()`, `PetscViewer`
 39: @*/
 40: PetscErrorCode PetscDrawView(PetscDraw indraw, PetscViewer viewer)
 41: {
 42:   PetscBool isdraw;
 43: #if PetscDefined(HAVE_SAWS)
 44:   PetscBool issaws;
 45: #endif

 47:   PetscFunctionBegin;
 49:   if (!viewer) PetscCall(PetscViewerASCIIGetStdout(PetscObjectComm((PetscObject)indraw), &viewer));
 51:   PetscCheckSameComm(indraw, 1, viewer, 2);

 53:   PetscCall(PetscObjectPrintClassNamePrefixType((PetscObject)indraw, viewer));
 54:   PetscCall(PetscObjectTypeCompare((PetscObject)viewer, PETSCVIEWERDRAW, &isdraw));
 55: #if PetscDefined(HAVE_SAWS)
 56:   PetscCall(PetscObjectTypeCompare((PetscObject)viewer, PETSCVIEWERSAWS, &issaws));
 57: #endif
 58:   if (isdraw) {
 59:     PetscDraw draw;
 60:     char      str[36];
 61:     PetscReal x, y, bottom, h;

 63:     PetscCall(PetscViewerDrawGetDraw(viewer, 0, &draw));
 64:     PetscCall(PetscDrawGetCurrentPoint(draw, &x, &y));
 65:     PetscCall(PetscStrncpy(str, "PetscDraw: ", sizeof(str)));
 66:     PetscCall(PetscStrlcat(str, ((PetscObject)indraw)->type_name, sizeof(str)));
 67:     PetscCall(PetscDrawStringBoxed(draw, x, y, PETSC_DRAW_RED, PETSC_DRAW_BLACK, str, NULL, &h));
 68:     bottom = y - h;
 69:     PetscCall(PetscDrawPushCurrentPoint(draw, x, bottom));
 70: #if PetscDefined(HAVE_SAWS)
 71:   } else if (issaws) {
 72:     PetscMPIInt rank;

 74:     PetscCall(PetscObjectName((PetscObject)indraw));
 75:     PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD, &rank));
 76:     if (!((PetscObject)indraw)->amsmem && rank == 0) PetscCall(PetscObjectViewSAWs((PetscObject)indraw, viewer));
 77: #endif
 78:   } else PetscTryTypeMethod(indraw, view, viewer);
 79:   PetscFunctionReturn(PETSC_SUCCESS);
 80: }

 82: /*@
 83:   PetscDrawViewFromOptions - View a `PetscDraw` from the option database

 85:   Collective

 87:   Input Parameters:
 88: + A    - the `PetscDraw` context
 89: . obj  - optional object that provides the prefix for the option names, pass `NULL` to use the options prefix of `A`
 90: - name - command line option

 92:   Options Database Key:
 93: . -name viewer_specification - See `PetscOptionsCreateViewer()` for the values of `viewer_specification`

 95:   Level: intermediate

 97:   Note:
 98:   This checks the options database, creates the viewer on-the-fly, uses it and then destroys it. Hence it should not be called in heavily used routines,
 99:   rather `PetscOptionsCreateViewer()` should be used to construct the viewer once which can then be utilized in the heavily used routine.

101: .seealso: `PetscDraw`, `PetscDrawView()`, `PetscObjectViewFromOptions()`, `PetscDrawCreate()`, `PetscOptionsCreateViewer()`
102: @*/
103: PetscErrorCode PetscDrawViewFromOptions(PetscDraw A, PetscObject obj, const char name[])
104: {
105:   PetscFunctionBegin;
107:   PetscCall(PetscObjectViewFromOptions((PetscObject)A, obj, name));
108:   PetscFunctionReturn(PETSC_SUCCESS);
109: }

111: /*@
112:   PetscDrawCreate - Creates a graphics context.

114:   Collective

116:   Input Parameters:
117: + comm    - MPI communicator
118: . display - X display when using X Windows
119: . title   - optional title added to top of window
120: . x       - horizonatl coordinate of lower left corner of window or `PETSC_DECIDE`
121: . y       - vertical coordinate of lower left corner of window or `PETSC_DECIDE`
122: . w       - width of window, `PETSC_DECIDE`, `PETSC_DRAW_HALF_SIZE`, `PETSC_DRAW_FULL_SIZE`, `PETSC_DRAW_THIRD_SIZE` or `PETSC_DRAW_QUARTER_SIZE`
123: - h       - height of window, `PETSC_DECIDE`, `PETSC_DRAW_HALF_SIZE`, `PETSC_DRAW_FULL_SIZE`, `PETSC_DRAW_THIRD_SIZE` or `PETSC_DRAW_QUARTER_SIZE`

125:   Output Parameter:
126: . indraw - location to put the `PetscDraw` context

128:   Level: beginner

130: .seealso: `PetscDrawSetType()`, `PetscDrawSetFromOptions()`, `PetscDrawDestroy()`, `PetscDrawLGCreate()`, `PetscDrawSPCreate()`,
131:           `PetscDrawViewPortsCreate()`, `PetscDrawViewPortsSet()`, `PetscDrawAxisCreate()`, `PetscDrawHGCreate()`, `PetscDrawBarCreate()`,
132:           `PetscViewerDrawGetDraw()`, `PetscDrawSetSave()`, `PetscDrawSetSaveMovie()`, `PetscDrawSetSaveFinalImage()`,
133:           `PetscDrawOpenX()`, `PetscDrawOpenImage()`, `PetscDrawIsNull()`, `PetscDrawGetPopup()`, `PetscDrawCheckResizedWindow()`, `PetscDrawResizeWindow()`,
134:           `PetscDrawGetWindowSize()`, `PetscDrawLine()`, `PetscDrawArrow()`, `PetscDrawLineSetWidth()`, `PetscDrawLineGetWidth()`, `PetscDrawMarker()`,
135:           `PetscDrawPoint()`, `PetscDrawRectangle()`, `PetscDrawTriangle()`, `PetscDrawEllipse()`, `PetscDrawString()`, `PetscDrawStringCentered()`,
136:           `PetscDrawStringBoxed()`, `PetscDrawStringVertical()`, `PetscDrawSetViewPort()`, `PetscDrawGetViewPort()`,
137:           `PetscDrawSplitViewPort()`, `PetscDrawSetTitle()`, `PetscDrawAppendTitle()`, `PetscDrawGetTitle()`, `PetscDrawSetPause()`, `PetscDrawGetPause()`,
138:           `PetscDrawPause()`, `PetscDrawSetDoubleBuffer()`, `PetscDrawClear()`, `PetscDrawFlush()`, `PetscDrawGetSingleton()`, `PetscDrawGetMouseButton()`,
139:           `PetscDrawZoom()`, `PetscDrawGetBoundingBox()`
140: @*/
141: PetscErrorCode PetscDrawCreate(MPI_Comm comm, const char display[], const char title[], int x, int y, int w, int h, PetscDraw *indraw)
142: {
143:   PetscDraw draw;
144:   PetscReal dpause = 0.0;
145:   PetscBool flag;

147:   PetscFunctionBegin;
148:   PetscAssertPointer(indraw, 8);
149:   PetscCall(PetscDrawInitializePackage());

151:   PetscCall(PetscHeaderCreate(draw, PETSC_DRAW_CLASSID, "Draw", "Graphics", "Draw", comm, PetscDrawDestroy, PetscDrawView));
152:   draw->data = NULL;
153:   PetscCall(PetscStrallocpy(display, &draw->display));
154:   PetscCall(PetscStrallocpy(title, &draw->title));
155:   draw->x       = x;
156:   draw->y       = y;
157:   draw->w       = w;
158:   draw->h       = h;
159:   draw->pause   = 0.0;
160:   draw->coor_xl = 0.0;
161:   draw->coor_xr = 1.0;
162:   draw->coor_yl = 0.0;
163:   draw->coor_yr = 1.0;
164:   draw->port_xl = 0.0;
165:   draw->port_xr = 1.0;
166:   draw->port_yl = 0.0;
167:   draw->port_yr = 1.0;
168:   draw->popup   = NULL;

170:   PetscCall(PetscOptionsGetReal(NULL, NULL, "-draw_pause", &dpause, &flag));
171:   if (flag) draw->pause = dpause;

173:   draw->savefilename   = NULL;
174:   draw->saveimageext   = NULL;
175:   draw->savemovieext   = NULL;
176:   draw->savefilecount  = 0;
177:   draw->savesinglefile = PETSC_FALSE;
178:   draw->savemoviefps   = PETSC_DECIDE;

180:   PetscCall(PetscDrawSetCurrentPoint(draw, .5, .9));

182:   draw->boundbox_xl = .5;
183:   draw->boundbox_xr = .5;
184:   draw->boundbox_yl = .9;
185:   draw->boundbox_yr = .9;

187:   *indraw = draw;
188:   PetscFunctionReturn(PETSC_SUCCESS);
189: }

191: /*@
192:   PetscDrawSetType - Builds graphics object for a particular implementation

194:   Collective

196:   Input Parameters:
197: + draw - the graphics context
198: - type - for example, `PETSC_DRAW_X`

200:   Options Database Key:
201: . -draw_type (x|null|win32|tikz|image) - Sets the type; see `PetscDrawType`

203:   Level: intermediate

205:   Notes:
206:   See `PetscDrawSetFromOptions()` for additional options database keys

208:   See `PetscDrawType` for available methods (for instance,
209:   `PETSC_DRAW_X`, `PETSC_DRAW_TIKZ` or `PETSC_DRAW_IMAGE`)

211: .seealso: `PetscDraw`, `PETSC_DRAW_X`, `PETSC_DRAW_TIKZ`, `PETSC_DRAW_IMAGE`, `PetscDrawSetFromOptions()`, `PetscDrawCreate()`, `PetscDrawDestroy()`, `PetscDrawType`
212: @*/
213: PetscErrorCode PetscDrawSetType(PetscDraw draw, PetscDrawType type)
214: {
215:   PetscBool match;
216:   PetscBool flg = PETSC_FALSE;
217:   PetscErrorCode (*r)(PetscDraw);

219:   PetscFunctionBegin;
221:   PetscAssertPointer(type, 2);

223:   PetscCall(PetscObjectTypeCompare((PetscObject)draw, type, &match));
224:   if (match) PetscFunctionReturn(PETSC_SUCCESS);

226:   /*  User requests no graphics */
227:   PetscCall(PetscOptionsHasName(((PetscObject)draw)->options, NULL, "-nox", &flg));

229:   /*
230:      This is not ideal, but it allows codes to continue to run if X graphics
231:    was requested but is not installed on this machine. Mostly this is for
232:    testing.
233:    */
234: #if !PetscDefined(HAVE_X)
235:   if (!flg) {
236:     PetscCall(PetscStrcmp(type, PETSC_DRAW_X, &match));
237:     if (match) {
238:       PetscBool dontwarn = PETSC_TRUE;
239:       flg                = PETSC_TRUE;
240:       PetscCall(PetscOptionsHasName(NULL, NULL, "-nox_warning", &dontwarn));
241:       if (!dontwarn) PetscCall((*PetscErrorPrintf)("PETSc installed without X Windows on this machine\nproceeding without graphics\n"));
242:     }
243:   }
244: #endif
245:   if (flg) {
246:     PetscCall(PetscStrcmp(type, "tikz", &flg));
247:     if (!flg) type = PETSC_DRAW_NULL;
248:   }

250:   PetscCall(PetscStrcmp(type, PETSC_DRAW_NULL, &match));
251:   if (match) {
252:     PetscCall(PetscOptionsHasName(NULL, NULL, "-draw_double_buffer", NULL));
253:     PetscCall(PetscOptionsHasName(NULL, NULL, "-draw_virtual", NULL));
254:     PetscCall(PetscOptionsHasName(NULL, NULL, "-draw_fast", NULL));
255:     PetscCall(PetscOptionsHasName(NULL, NULL, "-draw_ports", NULL));
256:     PetscCall(PetscOptionsHasName(NULL, NULL, "-draw_coordinates", NULL));
257:   }

259:   PetscCall(PetscFunctionListFind(PetscDrawList, type, &r));
260:   PetscCheck(r, PetscObjectComm((PetscObject)draw), PETSC_ERR_ARG_UNKNOWN_TYPE, "Unknown PetscDraw type given: %s", type);
261:   PetscTryTypeMethod(draw, destroy);
262:   PetscCall(PetscMemzero(draw->ops, sizeof(struct _PetscDrawOps)));
263:   PetscCall(PetscObjectChangeTypeName((PetscObject)draw, type));
264:   PetscCall((*r)(draw));
265:   PetscFunctionReturn(PETSC_SUCCESS);
266: }

268: /*@
269:   PetscDrawGetType - Gets the `PetscDraw` type as a string from the `PetscDraw` object.

271:   Not Collective

273:   Input Parameter:
274: . draw - Krylov context

276:   Output Parameter:
277: . type - name of PetscDraw method

279:   Level: advanced

281:   Note:
282:   `type` should not be retained for later use as it will be an invalid pointer if the `PetscDrawType` of `draw` is changed.

284: .seealso: `PetscDraw`, `PetscDrawType`, `PetscDrawSetType()`, `PetscDrawCreate()`, `PetscObjectTypeCompare()`, `PetscObjectTypeCompareAny()`
285: @*/
286: PetscErrorCode PetscDrawGetType(PetscDraw draw, PetscDrawType *type)
287: {
288:   PetscFunctionBegin;
290:   PetscAssertPointer(type, 2);
291:   *type = ((PetscObject)draw)->type_name;
292:   PetscFunctionReturn(PETSC_SUCCESS);
293: }

295: /*@
296:   PetscDrawRegister - Adds a method to the graphics package.

298:   Not Collective, No Fortran Support

300:   Input Parameters:
301: + sname    - name of a new user-defined graphics class
302: - function - routine to create method context

304:   Level: developer

306:   Note:
307:   `PetscDrawRegister()` may be called multiple times to add several user-defined graphics classes

309:   Example Usage:
310: .vb
311:    PetscDrawRegister("my_draw_type", MyDrawCreate);
312: .ve

314:   Then, your specific graphics package can be chosen with the procedural interface via
315: .vb
316:   PetscDrawSetType(ksp, "my_draw_type")
317: .ve
318:   or at runtime via the option
319: .vb
320:   -draw_type my_draw_type
321: .ve

323: .seealso: `PetscDraw`, `PetscDrawRegisterAll()`, `PetscDrawRegisterDestroy()`, `PetscDrawType`, `PetscDrawSetType()`
324: @*/
325: PetscErrorCode PetscDrawRegister(const char *sname, PetscErrorCode (*function)(PetscDraw))
326: {
327:   PetscFunctionBegin;
328:   PetscCall(PetscDrawInitializePackage());
329:   PetscCall(PetscFunctionListAdd(&PetscDrawList, sname, function));
330:   PetscFunctionReturn(PETSC_SUCCESS);
331: }

333: /*@
334:   PetscDrawSetOptionsPrefix - Sets the prefix used for searching for all
335:   `PetscDraw` options in the database.

337:   Logically Collective

339:   Input Parameters:
340: + draw   - the draw context
341: - prefix - the prefix to prepend to all option names

343:   Level: advanced

345: .seealso: `PetscDraw`, `PetscDrawSetFromOptions()`, `PetscDrawCreate()`
346: @*/
347: PetscErrorCode PetscDrawSetOptionsPrefix(PetscDraw draw, const char prefix[])
348: {
349:   PetscFunctionBegin;
351:   PetscCall(PetscObjectSetOptionsPrefix((PetscObject)draw, prefix));
352:   PetscFunctionReturn(PETSC_SUCCESS);
353: }

355: /*@
356:   PetscDrawSetFromOptions - Sets the graphics type from the options database as well as other draw options.

358:   Collective

360:   Input Parameter:
361: . draw - the graphics context

363:   Options Database Keys:
364: + -nox                                        - do not use X graphics (ignore graphics calls, but run program correctly)
365: . -nox_warning                                - when X Windows support is not installed this prevents the warning message from being printed
366: . -draw_pause seconds                         - -1 indicates wait for mouse input, -2 indicates pause when window is to be destroyed
367: . -draw_marker_type (cross|point|plus|circle) - set the marker type, see `PetscDrawMarkerType`
368: . -draw_save [filename]                       - (X Windows only) saves each image before it is cleared to a file
369: . -draw_save_final_image [filename]           - (X Windows only) saves the final image displayed in a window
370: . -draw_save_movie [.ext]                     - converts image files to a movie  at the end of the run. See `PetscDrawSetSaveMovie()`
371: . -draw_save_single_file (true|false)         - saves each new image in the same file, normally each new image is saved in a new file with 'filename/filename_%d.ext'
372: . -draw_save_on_clear (true|false)            - saves an image on each clear, mainly for debugging
373: - -draw_save_on_flush (true|false)            - saves an image on each flush, mainly for debugging

375:   Level: intermediate

377:   Notes:
378:   Must be called after `PetscDrawCreate()` but before the `PetscDraw` is used.

380:   Defaults to a PETSc X Windows graphics.

382: .seealso: `PetscDraw`, `PetscDrawCreate()`, `PetscDrawSetType()`, `PetscDrawSetSave()`, `PetscDrawSetSaveFinalImage()`, `PetscDrawPause()`, `PetscDrawSetPause()`,
383:           `PetscDrawSetSaveMovie()`
384: @*/
385: PetscErrorCode PetscDrawSetFromOptions(PetscDraw draw)
386: {
387:   PetscBool   flg, nox;
388:   char        vtype[256];
389:   const char *def;
390: #if !PetscDefined(USE_WINDOWS_GRAPHICS) && !PetscDefined(HAVE_X)
391:   PetscBool warn;
392: #endif

394:   PetscFunctionBegin;

397:   PetscCall(PetscDrawRegisterAll());

399:   if (((PetscObject)draw)->type_name) def = ((PetscObject)draw)->type_name;
400:   else {
401:     PetscCall(PetscOptionsHasName(((PetscObject)draw)->options, NULL, "-nox", &nox));
402:     def = PETSC_DRAW_NULL;
403: #if PetscDefined(USE_WINDOWS_GRAPHICS)
404:     if (!nox) def = PETSC_DRAW_WIN32;
405: #elif PetscDefined(HAVE_X)
406:     if (!nox) def = PETSC_DRAW_X;
407: #else
408:     PetscCall(PetscOptionsHasName(NULL, NULL, "-nox_warning", &warn));
409:     if (!nox && !warn) PetscCall((*PetscErrorPrintf)("PETSc installed without X Windows or Microsoft Graphics on this machine\nproceeding without graphics\n"));
410: #endif
411:   }
412:   PetscObjectOptionsBegin((PetscObject)draw);
413:   PetscCall(PetscOptionsFList("-draw_type", "Type of graphical output", "PetscDrawSetType", PetscDrawList, def, vtype, sizeof(vtype), &flg));
414:   if (flg) {
415:     PetscCall(PetscDrawSetType(draw, vtype));
416:   } else if (!((PetscObject)draw)->type_name) {
417:     PetscCall(PetscDrawSetType(draw, def));
418:   }
419:   PetscCall(PetscOptionsName("-nox", "Run without graphics", "None", &nox));
420:   {
421:     char      filename[PETSC_MAX_PATH_LEN];
422:     char      movieext[32];
423:     PetscBool image, movie;
424:     PetscCall(PetscSNPrintf(filename, sizeof(filename), "%s%s", draw->savefilename ? draw->savefilename : "", draw->saveimageext ? draw->saveimageext : ""));
425:     PetscCall(PetscSNPrintf(movieext, sizeof(movieext), "%s", draw->savemovieext ? draw->savemovieext : ""));
426:     PetscCall(PetscOptionsString("-draw_save", "Save graphics to image file", "PetscDrawSetSave", filename, filename, sizeof(filename), &image));
427:     PetscCall(PetscOptionsString("-draw_save_movie", "Make a movie from saved images", "PetscDrawSetSaveMovie", movieext, movieext, sizeof(movieext), &movie));
428:     PetscCall(PetscOptionsInt("-draw_save_movie_fps", "Set frames per second in saved movie", PETSC_FUNCTION_NAME, draw->savemoviefps, &draw->savemoviefps, NULL));
429:     PetscCall(PetscOptionsBool("-draw_save_single_file", "Each new image replaces previous image in file", PETSC_FUNCTION_NAME, draw->savesinglefile, &draw->savesinglefile, NULL));
430:     if (image) PetscCall(PetscDrawSetSave(draw, filename));
431:     if (movie) PetscCall(PetscDrawSetSaveMovie(draw, movieext));
432:     PetscCall(PetscOptionsString("-draw_save_final_image", "Save final graphics to image file", "PetscDrawSetSaveFinalImage", filename, filename, sizeof(filename), &image));
433:     if (image) PetscCall(PetscDrawSetSaveFinalImage(draw, filename));
434:     PetscCall(PetscOptionsBool("-draw_save_on_clear", "Save graphics to file on each clear", PETSC_FUNCTION_NAME, draw->saveonclear, &draw->saveonclear, NULL));
435:     PetscCall(PetscOptionsBool("-draw_save_on_flush", "Save graphics to file on each flush", PETSC_FUNCTION_NAME, draw->saveonflush, &draw->saveonflush, NULL));
436:   }
437:   PetscCall(PetscOptionsReal("-draw_pause", "Amount of time that program pauses after plots", "PetscDrawSetPause", draw->pause, &draw->pause, NULL));
438:   PetscCall(PetscOptionsEnum("-draw_marker_type", "Type of marker to use on plots", "PetscDrawSetMarkerType", PetscDrawMarkerTypes, (PetscEnum)draw->markertype, (PetscEnum *)&draw->markertype, NULL));

440:   /* process any options handlers added with PetscObjectAddOptionsHandler() */
441:   PetscCall(PetscObjectProcessOptionsHandlers((PetscObject)draw, PetscOptionsObject));

443:   PetscCall(PetscDrawViewFromOptions(draw, NULL, "-draw_view"));
444:   PetscOptionsEnd();
445:   PetscFunctionReturn(PETSC_SUCCESS);
446: }