Actual source code: drawv.c
petsc-3.8.4 2018-03-24
2: #include <../src/sys/classes/viewer/impls/draw/vdraw.h>
3: #include <petscviewer.h>
5: static PetscErrorCode PetscViewerDestroy_Draw(PetscViewer v)
6: {
7: PetscErrorCode ierr;
8: PetscInt i;
9: PetscViewer_Draw *vdraw = (PetscViewer_Draw*)v->data;
12: if (vdraw->singleton_made) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"Destroying PetscViewer without first restoring singleton");
13: for (i=0; i<vdraw->draw_max; i++) {
14: PetscDrawAxisDestroy(&vdraw->drawaxis[i]);
15: PetscDrawLGDestroy(&vdraw->drawlg[i]);
16: PetscDrawDestroy(&vdraw->draw[i]);
17: }
18: PetscFree(vdraw->display);
19: PetscFree(vdraw->title);
20: PetscFree3(vdraw->draw,vdraw->drawlg,vdraw->drawaxis);
21: PetscFree(vdraw->bounds);
22: PetscFree(vdraw->drawtype);
23: PetscFree(v->data);
24: return(0);
25: }
27: static PetscErrorCode PetscViewerFlush_Draw(PetscViewer v)
28: {
29: PetscErrorCode ierr;
30: PetscInt i;
31: PetscViewer_Draw *vdraw = (PetscViewer_Draw*)v->data;
34: for (i=0; i<vdraw->draw_max; i++) {
35: if (vdraw->draw[i]) {PetscDrawFlush(vdraw->draw[i]);}
36: }
37: return(0);
38: }
40: /*@C
41: PetscViewerDrawGetDraw - Returns PetscDraw object from PetscViewer object.
42: This PetscDraw object may then be used to perform graphics using
43: PetscDrawXXX() commands.
45: Collective on PetscViewer
47: Input Parameters:
48: + viewer - the PetscViewer (created with PetscViewerDrawOpen())
49: - windownumber - indicates which subwindow (usually 0)
51: Ouput Parameter:
52: . draw - the draw object
54: Level: intermediate
56: Concepts: drawing^accessing PetscDraw context from PetscViewer
57: Concepts: graphics
59: .seealso: PetscViewerDrawGetLG(), PetscViewerDrawGetAxis(), PetscViewerDrawOpen()
60: @*/
61: PetscErrorCode PetscViewerDrawGetDraw(PetscViewer viewer,PetscInt windownumber,PetscDraw *draw)
62: {
63: PetscViewer_Draw *vdraw;
64: PetscErrorCode ierr;
65: PetscBool isdraw;
71: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
72: if (!isdraw) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Must be draw type PetscViewer");
73: if (windownumber < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Window number cannot be negative");
74: vdraw = (PetscViewer_Draw*)viewer->data;
76: windownumber += vdraw->draw_base;
77: if (windownumber >= vdraw->draw_max) {
78: /* allocate twice as many slots as needed */
79: PetscInt draw_max = vdraw->draw_max;
80: PetscDraw *tdraw = vdraw->draw;
81: PetscDrawLG *drawlg = vdraw->drawlg;
82: PetscDrawAxis *drawaxis = vdraw->drawaxis;
84: vdraw->draw_max = 2*windownumber;
86: PetscCalloc3(vdraw->draw_max,&vdraw->draw,vdraw->draw_max,&vdraw->drawlg,vdraw->draw_max,&vdraw->drawaxis);
88: PetscMemcpy(vdraw->draw,tdraw,draw_max*sizeof(PetscDraw));
89: PetscMemcpy(vdraw->drawlg,drawlg,draw_max*sizeof(PetscDrawLG));
90: PetscMemcpy(vdraw->drawaxis,drawaxis,draw_max*sizeof(PetscDrawAxis));
92: PetscFree3(tdraw,drawlg,drawaxis);
93: }
95: if (!vdraw->draw[windownumber]) {
96: char *title = vdraw->title, tmp_str[128];
97: if (windownumber) {
98: PetscSNPrintf(tmp_str,sizeof(tmp_str),"%s:%d",vdraw->title?vdraw->title:"",windownumber);
99: title = tmp_str;
100: }
101: PetscDrawCreate(PetscObjectComm((PetscObject)viewer),vdraw->display,title,PETSC_DECIDE,PETSC_DECIDE,vdraw->w,vdraw->h,&vdraw->draw[windownumber]);
102: PetscLogObjectParent((PetscObject)viewer,(PetscObject)vdraw->draw[windownumber]);
103: if (vdraw->drawtype) {
104: PetscDrawSetType(vdraw->draw[windownumber],vdraw->drawtype);
105: }
106: PetscDrawSetPause(vdraw->draw[windownumber],vdraw->pause);
107: PetscDrawSetOptionsPrefix(vdraw->draw[windownumber],((PetscObject)viewer)->prefix);
108: PetscDrawSetFromOptions(vdraw->draw[windownumber]);
109: }
110: if (draw) *draw = vdraw->draw[windownumber];
112: return(0);
113: }
115: /*@C
116: PetscViewerDrawBaseAdd - add to the base integer that is added to the windownumber passed to PetscViewerDrawGetDraw()
118: Logically Collective on PetscViewer
120: Input Parameters:
121: + viewer - the PetscViewer (created with PetscViewerDrawOpen())
122: - windownumber - how much to add to the base
124: Level: developer
126: Concepts: drawing^accessing PetscDraw context from PetscViewer
127: Concepts: graphics
129: .seealso: PetscViewerDrawGetLG(), PetscViewerDrawGetAxis(), PetscViewerDrawOpen(), PetscViewerDrawGetDraw(), PetscViewerDrawBaseSet()
130: @*/
131: PetscErrorCode PetscViewerDrawBaseAdd(PetscViewer viewer,PetscInt windownumber)
132: {
133: PetscViewer_Draw *vdraw;
134: PetscErrorCode ierr;
135: PetscBool isdraw;
140: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
141: if (!isdraw) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Must be draw type PetscViewer");
142: vdraw = (PetscViewer_Draw*)viewer->data;
144: if (windownumber + vdraw->draw_base < 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Resulting base %D cannot be negative",windownumber+vdraw->draw_base);
145: vdraw->draw_base += windownumber;
146: return(0);
147: }
149: /*@C
150: PetscViewerDrawBaseSet - sets the base integer that is added to the windownumber passed to PetscViewerDrawGetDraw()
152: Logically Collective on PetscViewer
154: Input Parameters:
155: + viewer - the PetscViewer (created with PetscViewerDrawOpen())
156: - windownumber - value to set the base
158: Level: developer
160: Concepts: drawing^accessing PetscDraw context from PetscViewer
161: Concepts: graphics
163: .seealso: PetscViewerDrawGetLG(), PetscViewerDrawGetAxis(), PetscViewerDrawOpen(), PetscViewerDrawGetDraw(), PetscViewerDrawBaseAdd()
164: @*/
165: PetscErrorCode PetscViewerDrawBaseSet(PetscViewer viewer,PetscInt windownumber)
166: {
167: PetscViewer_Draw *vdraw;
168: PetscErrorCode ierr;
169: PetscBool isdraw;
174: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
175: if (!isdraw) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Must be draw type PetscViewer");
176: vdraw = (PetscViewer_Draw*)viewer->data;
178: if (windownumber < 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Resulting base %D cannot be negative",windownumber);
179: vdraw->draw_base = windownumber;
180: return(0);
181: }
183: /*@C
184: PetscViewerDrawGetDrawLG - Returns PetscDrawLG object from PetscViewer object.
185: This PetscDrawLG object may then be used to perform graphics using
186: PetscDrawLGXXX() commands.
188: Collective on PetscViewer
190: Input Parameter:
191: + PetscViewer - the PetscViewer (created with PetscViewerDrawOpen())
192: - windownumber - indicates which subwindow (usually 0)
194: Ouput Parameter:
195: . draw - the draw line graph object
197: Level: intermediate
199: Concepts: line graph^accessing context
201: .seealso: PetscViewerDrawGetDraw(), PetscViewerDrawGetAxis(), PetscViewerDrawOpen()
202: @*/
203: PetscErrorCode PetscViewerDrawGetDrawLG(PetscViewer viewer,PetscInt windownumber,PetscDrawLG *drawlg)
204: {
205: PetscErrorCode ierr;
206: PetscBool isdraw;
207: PetscViewer_Draw *vdraw;
213: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
214: if (!isdraw) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Must be draw type PetscViewer");
215: if (windownumber < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Window number cannot be negative");
216: vdraw = (PetscViewer_Draw*)viewer->data;
218: if (windownumber+vdraw->draw_base >= vdraw->draw_max || !vdraw->draw[windownumber+vdraw->draw_base]) {
219: PetscViewerDrawGetDraw(viewer,windownumber,NULL);
220: }
221: if (!vdraw->drawlg[windownumber+vdraw->draw_base]) {
222: PetscDrawLGCreate(vdraw->draw[windownumber+vdraw->draw_base],1,&vdraw->drawlg[windownumber+vdraw->draw_base]);
223: PetscLogObjectParent((PetscObject)viewer,(PetscObject)vdraw->drawlg[windownumber+vdraw->draw_base]);
224: PetscDrawLGSetFromOptions(vdraw->drawlg[windownumber+vdraw->draw_base]);
225: }
226: *drawlg = vdraw->drawlg[windownumber+vdraw->draw_base];
227: return(0);
228: }
230: /*@C
231: PetscViewerDrawGetDrawAxis - Returns PetscDrawAxis object from PetscViewer object.
232: This PetscDrawAxis object may then be used to perform graphics using
233: PetscDrawAxisXXX() commands.
235: Collective on PetscViewer
237: Input Parameter:
238: + viewer - the PetscViewer (created with PetscViewerDrawOpen()
239: - windownumber - indicates which subwindow (usually 0)
241: Ouput Parameter:
242: . drawaxis - the draw axis object
244: Level: advanced
246: Concepts: line graph^accessing context
248: .seealso: PetscViewerDrawGetDraw(), PetscViewerDrawGetLG(), PetscViewerDrawOpen()
249: @*/
250: PetscErrorCode PetscViewerDrawGetDrawAxis(PetscViewer viewer,PetscInt windownumber,PetscDrawAxis *drawaxis)
251: {
252: PetscErrorCode ierr;
253: PetscBool isdraw;
254: PetscViewer_Draw *vdraw;
260: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
261: if (!isdraw) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Must be draw type PetscViewer");
262: if (windownumber < 0) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE,"Window number cannot be negative");
263: vdraw = (PetscViewer_Draw*)viewer->data;
265: if (windownumber+vdraw->draw_base >= vdraw->draw_max || !vdraw->draw[windownumber+vdraw->draw_base]) {
266: PetscViewerDrawGetDraw(viewer,windownumber,NULL);
267: }
268: if (!vdraw->drawaxis[windownumber+vdraw->draw_base]) {
269: PetscDrawAxisCreate(vdraw->draw[windownumber+vdraw->draw_base],&vdraw->drawaxis[windownumber+vdraw->draw_base]);
270: PetscLogObjectParent((PetscObject)viewer,(PetscObject)vdraw->drawaxis[windownumber+vdraw->draw_base]);
271: }
272: *drawaxis = vdraw->drawaxis[windownumber+vdraw->draw_base];
273: return(0);
274: }
276: PetscErrorCode PetscViewerDrawResize(PetscViewer v,int w,int h)
277: {
278: PetscErrorCode ierr;
279: PetscViewer_Draw *vdraw;
280: PetscBool isdraw;
284: PetscObjectTypeCompare((PetscObject)v,PETSCVIEWERDRAW,&isdraw);
285: if (!isdraw) return(0);
286: vdraw = (PetscViewer_Draw*)v->data;
288: if (w >= 1) vdraw->w = w;
289: if (h >= 1) vdraw->h = h;
290: return(0);
291: }
293: PetscErrorCode PetscViewerDrawSetInfo(PetscViewer v,const char display[],const char title[],int x,int y,int w,int h)
294: {
295: PetscErrorCode ierr;
296: PetscViewer_Draw *vdraw;
297: PetscBool isdraw;
301: PetscObjectTypeCompare((PetscObject)v,PETSCVIEWERDRAW,&isdraw);
302: if (!isdraw) return(0);
303: vdraw = (PetscViewer_Draw*)v->data;
305: PetscStrallocpy(display,&vdraw->display);
306: PetscStrallocpy(title,&vdraw->title);
307: if (w >= 1) vdraw->w = w;
308: if (h >= 1) vdraw->h = h;
309: return(0);
310: }
312: PetscErrorCode PetscViewerDrawSetDrawType(PetscViewer v,PetscDrawType drawtype)
313: {
314: PetscErrorCode ierr;
315: PetscViewer_Draw *vdraw;
316: PetscBool isdraw;
320: PetscObjectTypeCompare((PetscObject)v,PETSCVIEWERDRAW,&isdraw);
321: if (!isdraw) return(0);
322: vdraw = (PetscViewer_Draw*)v->data;
324: PetscFree(vdraw->drawtype);
325: PetscStrallocpy(drawtype,(char**)&vdraw->drawtype);
326: return(0);
327: }
329: /*@C
330: PetscViewerDrawOpen - Opens a window for use as a PetscViewer. If you want to
331: do graphics in this window, you must call PetscViewerDrawGetDraw() and
332: perform the graphics on the PetscDraw object.
334: Collective on MPI_Comm
336: Input Parameters:
337: + comm - communicator that will share window
338: . display - the X display on which to open, or null for the local machine
339: . title - the title to put in the title bar, or null for no title
340: . x, y - the screen coordinates of the upper left corner of window, or use PETSC_DECIDE
341: - w, h - window width and height in pixels, or may use PETSC_DECIDE or PETSC_DRAW_FULL_SIZE, PETSC_DRAW_HALF_SIZE,
342: PETSC_DRAW_THIRD_SIZE, PETSC_DRAW_QUARTER_SIZE
344: Output Parameters:
345: . viewer - the PetscViewer
347: Format Options:
348: + PETSC_VIEWER_DRAW_BASIC - displays with basic format
349: - PETSC_VIEWER_DRAW_LG - displays using a line graph
351: Options Database Keys:
352: PetscViewerDrawOpen() calls PetscDrawCreate(), so see the manual page for
353: PetscDrawCreate() for runtime options, including
354: + -draw_type x or null
355: . -nox - Disables all x-windows output
356: . -display <name> - Specifies name of machine for the X display
357: . -geometry <x,y,w,h> - allows setting the window location and size
358: - -draw_pause <pause> - Sets time (in seconds) that the
359: program pauses after PetscDrawPause() has been called
360: (0 is default, -1 implies until user input).
362: Level: beginner
364: Note for Fortran Programmers:
365: Whenever indicating null character data in a Fortran code,
366: NULL_CHARACTER must be employed; using NULL is not
367: correct for character data! Thus, NULL_CHARACTER can be
368: used for the display and title input parameters.
370: Concepts: graphics^opening PetscViewer
371: Concepts: drawing^opening PetscViewer
374: .seealso: PetscDrawCreate(), PetscViewerDestroy(), PetscViewerDrawGetDraw(), PetscViewerCreate(), PETSC_VIEWER_DRAW_,
375: PETSC_VIEWER_DRAW_WORLD, PETSC_VIEWER_DRAW_SELF
376: @*/
377: PetscErrorCode PetscViewerDrawOpen(MPI_Comm comm,const char display[],const char title[],int x,int y,int w,int h,PetscViewer *viewer)
378: {
382: PetscViewerCreate(comm,viewer);
383: PetscViewerSetType(*viewer,PETSCVIEWERDRAW);
384: PetscViewerDrawSetInfo(*viewer,display,title,x,y,w,h);
385: return(0);
386: }
388: PetscErrorCode PetscViewerGetSubViewer_Draw(PetscViewer viewer,MPI_Comm comm,PetscViewer *sviewer)
389: {
390: PetscErrorCode ierr;
391: PetscMPIInt rank;
392: PetscInt i;
393: PetscViewer_Draw *vdraw = (PetscViewer_Draw*)viewer->data,*svdraw;
396: if (vdraw->singleton_made) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"Trying to get SubViewer without first restoring previous");
397: /* only processor zero can use the PetscViewer draw singleton */
398: if (*sviewer) *sviewer = NULL;
399: MPI_Comm_rank(PetscObjectComm((PetscObject)viewer),&rank);
400: if (!rank) {
401: PetscViewerCreate(PETSC_COMM_SELF,sviewer);
402: PetscViewerSetType(*sviewer,PETSCVIEWERDRAW);
403: svdraw = (PetscViewer_Draw*)(*sviewer)->data;
404: (*sviewer)->format = viewer->format;
405: for (i=0; i<vdraw->draw_max; i++) { /* XXX this is wrong if svdraw->draw_max (initially 5) < vdraw->draw_max */
406: if (vdraw->draw[i]) {PetscDrawGetSingleton(vdraw->draw[i],&svdraw->draw[i]);}
407: }
408: }
409: vdraw->singleton_made = PETSC_TRUE;
410: return(0);
411: }
413: PetscErrorCode PetscViewerRestoreSubViewer_Draw(PetscViewer viewer,MPI_Comm comm,PetscViewer *sviewer)
414: {
415: PetscErrorCode ierr;
416: PetscMPIInt rank;
417: PetscInt i;
418: PetscViewer_Draw *vdraw = (PetscViewer_Draw*)viewer->data,*svdraw;
421: if (!vdraw->singleton_made) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"Trying to restore a singleton that was not gotten");
422: MPI_Comm_rank(PetscObjectComm((PetscObject)viewer),&rank);
423: if (!rank) {
424: svdraw = (PetscViewer_Draw*)(*sviewer)->data;
425: for (i=0; i<vdraw->draw_max; i++) {
426: if (vdraw->draw[i] && svdraw->draw[i]) {
427: PetscDrawRestoreSingleton(vdraw->draw[i],&svdraw->draw[i]);
428: }
429: }
430: PetscFree3(svdraw->draw,svdraw->drawlg,svdraw->drawaxis);
431: PetscFree((*sviewer)->data);
432: PetscHeaderDestroy(sviewer);
433: }
434: vdraw->singleton_made = PETSC_FALSE;
435: return(0);
436: }
438: PetscErrorCode PetscViewerSetFromOptions_Draw(PetscOptionItems *PetscOptionsObject,PetscViewer v)
439: {
441: PetscReal bounds[16];
442: PetscInt nbounds = 16;
443: PetscBool flg;
446: PetscOptionsHead(PetscOptionsObject,"Draw PetscViewer Options");
447: PetscOptionsRealArray("-draw_bounds","Bounds to put on plots axis","PetscViewerDrawSetBounds",bounds,&nbounds,&flg);
448: if (flg) {
449: PetscViewerDrawSetBounds(v,nbounds/2,bounds);
450: }
451: PetscOptionsTail();
452: return(0);
453: }
455: PetscErrorCode PetscViewerView_Draw(PetscViewer viewer,PetscViewer v)
456: {
457: PetscErrorCode ierr;
458: PetscDraw draw;
459: PetscInt i;
460: PetscViewer_Draw *vdraw = (PetscViewer_Draw*)viewer->data;
463: /* If the PetscViewer has just been created then no vdraw->draw yet
464: exists so this will not actually call the viewer on any draws. */
465: for (i=0; i<vdraw->draw_base; i++) {
466: if (vdraw->draw[i]) {
467: PetscViewerDrawGetDraw(viewer,i,&draw);
468: PetscDrawView(draw,v);
469: }
470: }
471: return(0);
472: }
474: /*MC
475: PETSCVIEWERDRAW - A viewer that generates graphics, either to the screen or a file
478: .seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(), PETSC_VIEWER_DRAW_(),PETSC_VIEWER_DRAW_SELF, PETSC_VIEWER_DRAW_WORLD,
479: PetscViewerCreate(), PetscViewerASCIIOpen(), PetscViewerBinaryOpen(), PETSCVIEWERBINARY,
480: PetscViewerMatlabOpen(), VecView(), DMView(), PetscViewerMatlabPutArray(), PETSCVIEWERASCII, PETSCVIEWERMATLAB,
481: PetscViewerFileSetName(), PetscViewerFileSetMode(), PetscViewerFormat, PetscViewerType, PetscViewerSetType()
483: Level: beginner
485: M*/
486: PETSC_EXTERN PetscErrorCode PetscViewerCreate_Draw(PetscViewer viewer)
487: {
488: PetscErrorCode ierr;
489: PetscViewer_Draw *vdraw;
492: PetscNewLog(viewer,&vdraw);
493: viewer->data = (void*)vdraw;
495: viewer->ops->flush = PetscViewerFlush_Draw;
496: viewer->ops->view = PetscViewerView_Draw;
497: viewer->ops->destroy = PetscViewerDestroy_Draw;
498: viewer->ops->setfromoptions = PetscViewerSetFromOptions_Draw;
499: viewer->ops->getsubviewer = PetscViewerGetSubViewer_Draw;
500: viewer->ops->restoresubviewer = PetscViewerRestoreSubViewer_Draw;
502: /* these are created on the fly if requested */
503: vdraw->draw_max = 5;
504: vdraw->draw_base = 0;
505: vdraw->w = PETSC_DECIDE;
506: vdraw->h = PETSC_DECIDE;
508: PetscCalloc3(vdraw->draw_max,&vdraw->draw,vdraw->draw_max,&vdraw->drawlg,vdraw->draw_max,&vdraw->drawaxis);
509: vdraw->singleton_made = PETSC_FALSE;
510: return(0);
511: }
513: /*@
514: PetscViewerDrawClear - Clears a PetscDraw graphic associated with a PetscViewer.
516: Not Collective
518: Input Parameter:
519: . viewer - the PetscViewer
521: Level: intermediate
523: .seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
525: @*/
526: PetscErrorCode PetscViewerDrawClear(PetscViewer viewer)
527: {
528: PetscErrorCode ierr;
529: PetscViewer_Draw *vdraw;
530: PetscBool isdraw;
531: PetscInt i;
535: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
536: if (!isdraw) return(0);
537: vdraw = (PetscViewer_Draw*)viewer->data;
539: for (i=0; i<vdraw->draw_max; i++) {
540: if (vdraw->draw[i]) {PetscDrawClear(vdraw->draw[i]);}
541: }
542: return(0);
543: }
545: /*@
546: PetscViewerDrawGetPause - Gets a pause for the first present draw
548: Not Collective
550: Input Parameter:
551: . viewer - the PetscViewer
553: Output Parameter:
554: . pause - the pause value
556: Level: intermediate
558: .seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
560: @*/
561: PetscErrorCode PetscViewerDrawGetPause(PetscViewer viewer,PetscReal *pause)
562: {
563: PetscErrorCode ierr;
564: PetscViewer_Draw *vdraw;
565: PetscBool isdraw;
566: PetscInt i;
567: PetscDraw draw;
571: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
572: if (!isdraw) {*pause = 0.0; return(0);}
573: vdraw = (PetscViewer_Draw*)viewer->data;
575: for (i=0; i<vdraw->draw_max; i++) {
576: if (vdraw->draw[i]) {
577: PetscDrawGetPause(vdraw->draw[i],pause);
578: return(0);
579: }
580: }
581: /* none exist yet so create one and get its pause */
582: PetscViewerDrawGetDraw(viewer,0,&draw);
583: PetscDrawGetPause(draw,pause);
584: return(0);
585: }
587: /*@
588: PetscViewerDrawSetPause - Sets a pause for each PetscDraw in the viewer
590: Not Collective
592: Input Parameters:
593: + viewer - the PetscViewer
594: - pause - the pause value
596: Level: intermediate
598: .seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
600: @*/
601: PetscErrorCode PetscViewerDrawSetPause(PetscViewer viewer,PetscReal pause)
602: {
603: PetscErrorCode ierr;
604: PetscViewer_Draw *vdraw;
605: PetscBool isdraw;
606: PetscInt i;
610: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
611: if (!isdraw) return(0);
612: vdraw = (PetscViewer_Draw*)viewer->data;
614: vdraw->pause = pause;
615: for (i=0; i<vdraw->draw_max; i++) {
616: if (vdraw->draw[i]) {PetscDrawSetPause(vdraw->draw[i],pause);}
617: }
618: return(0);
619: }
622: /*@
623: PetscViewerDrawSetHold - Holds previous image when drawing new image
625: Not Collective
627: Input Parameters:
628: + viewer - the PetscViewer
629: - hold - indicates to hold or not
631: Level: intermediate
633: .seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
635: @*/
636: PetscErrorCode PetscViewerDrawSetHold(PetscViewer viewer,PetscBool hold)
637: {
638: PetscErrorCode ierr;
639: PetscViewer_Draw *vdraw;
640: PetscBool isdraw;
644: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
645: if (!isdraw) return(0);
646: vdraw = (PetscViewer_Draw*)viewer->data;
648: vdraw->hold = hold;
649: return(0);
650: }
652: /*@
653: PetscViewerDrawGetHold - Checks if holds previous image when drawing new image
655: Not Collective
657: Input Parameter:
658: . viewer - the PetscViewer
660: Output Parameter:
661: . hold - indicates to hold or not
663: Level: intermediate
665: .seealso: PetscViewerDrawOpen(), PetscViewerDrawGetDraw(),
667: @*/
668: PetscErrorCode PetscViewerDrawGetHold(PetscViewer viewer,PetscBool *hold)
669: {
670: PetscErrorCode ierr;
671: PetscViewer_Draw *vdraw;
672: PetscBool isdraw;
676: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
677: if (!isdraw) {*hold = PETSC_FALSE; return(0);}
678: vdraw = (PetscViewer_Draw*)viewer->data;
680: *hold = vdraw->hold;
681: return(0);
682: }
684: /* ---------------------------------------------------------------------*/
685: /*
686: The variable Petsc_Viewer_Draw_keyval is used to indicate an MPI attribute that
687: is attached to a communicator, in this case the attribute is a PetscViewer.
688: */
689: PetscMPIInt Petsc_Viewer_Draw_keyval = MPI_KEYVAL_INVALID;
691: /*@C
692: PETSC_VIEWER_DRAW_ - Creates a window PetscViewer shared by all processors
693: in a communicator.
695: Collective on MPI_Comm
697: Input Parameter:
698: . comm - the MPI communicator to share the window PetscViewer
700: Level: intermediate
702: Notes:
703: Unlike almost all other PETSc routines, PETSC_VIEWER_DRAW_ does not return
704: an error code. The window is usually used in the form
705: $ XXXView(XXX object,PETSC_VIEWER_DRAW_(comm));
707: .seealso: PETSC_VIEWER_DRAW_WORLD, PETSC_VIEWER_DRAW_SELF, PetscViewerDrawOpen(),
708: @*/
709: PetscViewer PETSC_VIEWER_DRAW_(MPI_Comm comm)
710: {
712: PetscMPIInt flag;
713: PetscViewer viewer;
714: MPI_Comm ncomm;
717: PetscCommDuplicate(comm,&ncomm,NULL);if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
718: if (Petsc_Viewer_Draw_keyval == MPI_KEYVAL_INVALID) {
719: MPI_Keyval_create(MPI_NULL_COPY_FN,MPI_NULL_DELETE_FN,&Petsc_Viewer_Draw_keyval,0);
720: if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
721: }
722: MPI_Attr_get(ncomm,Petsc_Viewer_Draw_keyval,(void**)&viewer,&flag);
723: if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
724: if (!flag) { /* PetscViewer not yet created */
725: PetscViewerDrawOpen(ncomm,0,0,PETSC_DECIDE,PETSC_DECIDE,300,300,&viewer);
726: if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
727: PetscObjectRegisterDestroy((PetscObject)viewer);
728: if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
729: MPI_Attr_put(ncomm,Petsc_Viewer_Draw_keyval,(void*)viewer);
730: if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
731: }
732: PetscCommDestroy(&ncomm);
733: if (ierr) {PetscError(PETSC_COMM_SELF,__LINE__,"PETSC_VIEWER_DRAW_",__FILE__,PETSC_ERR_PLIB,PETSC_ERROR_INITIAL," ");return(0);}
734: PetscFunctionReturn(viewer);
735: }
737: /*@
738: PetscViewerDrawSetBounds - sets the upper and lower bounds to be used in plotting
740: Collective on PetscViewer
742: Input Parameters:
743: + viewer - the PetscViewer (created with PetscViewerDrawOpen())
744: . nbounds - number of plots that can be made with this viewer, for example the dof passed to DMDACreate()
745: - bounds - the actual bounds, the size of this is 2*nbounds, the values are stored in the order min F_0, max F_0, min F_1, max F_1, .....
748: Options Database:
749: . -draw_bounds minF0,maxF0,minF1,maxF1
751: Level: intermediate
753: Notes: this determines the colors used in 2d contour plots generated with VecView() for DMDA in 2d. Any values in the vector below or above the
754: bounds are moved to the bound value before plotting. In this way the color index from color to physical value remains the same for all plots generated with
755: this viewer. Otherwise the color to physical value meaning changes with each new image if this is not set.
757: Concepts: drawing^accessing PetscDraw context from PetscViewer
758: Concepts: graphics
760: .seealso: PetscViewerDrawGetLG(), PetscViewerDrawGetAxis(), PetscViewerDrawOpen()
761: @*/
762: PetscErrorCode PetscViewerDrawSetBounds(PetscViewer viewer,PetscInt nbounds,const PetscReal *bounds)
763: {
764: PetscViewer_Draw *vdraw;
765: PetscBool isdraw;
766: PetscErrorCode ierr;
771: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
772: if (!isdraw) return(0);
773: vdraw = (PetscViewer_Draw*)viewer->data;
775: vdraw->nbounds = nbounds;
776: PetscFree(vdraw->bounds);
777: PetscMalloc1(2*nbounds,&vdraw->bounds);
778: PetscMemcpy(vdraw->bounds,bounds,2*nbounds*sizeof(PetscReal));
779: return(0);
780: }
782: /*@C
783: PetscViewerDrawGetBounds - gets the upper and lower bounds to be used in plotting set with PetscViewerDrawSetBounds()
785: Collective on PetscViewer
787: Input Parameter:
788: . viewer - the PetscViewer (created with PetscViewerDrawOpen())
790: Output Paramters:
791: + nbounds - number of plots that can be made with this viewer, for example the dof passed to DMDACreate()
792: - bounds - the actual bounds, the size of this is 2*nbounds, the values are stored in the order min F_0, max F_0, min F_1, max F_1, .....
794: Level: intermediate
796: Concepts: drawing^accessing PetscDraw context from PetscViewer
797: Concepts: graphics
799: .seealso: PetscViewerDrawGetLG(), PetscViewerDrawGetAxis(), PetscViewerDrawOpen(), PetscViewerDrawSetBounds()
800: @*/
801: PetscErrorCode PetscViewerDrawGetBounds(PetscViewer viewer,PetscInt *nbounds,const PetscReal **bounds)
802: {
803: PetscViewer_Draw *vdraw;
804: PetscBool isdraw;
805: PetscErrorCode ierr;
809: PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERDRAW,&isdraw);
810: if (!isdraw) {if (nbounds) *nbounds = 0; if (bounds) *bounds = NULL; return(0);}
811: vdraw = (PetscViewer_Draw*)viewer->data;
813: if (nbounds) *nbounds = vdraw->nbounds;
814: if (bounds) *bounds = vdraw->bounds;
815: return(0);
816: }