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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 4563

Last change on this file since 4563 was 4533, checked in by gah, 10 years ago
update regression tester
File size: 89.5 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkisosurfaceviewer - Vtk 3D contour object viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2005 Purdue Research Foundation
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *VtkIsosurfaceViewer.width 4i widgetDefault
19	option add VtkIsosurfaceViewercursor crosshair widgetDefault
20	option add *VtkIsosurfaceViewer.height 4i widgetDefault
21	option add *VtkIsosurfaceViewer.foreground black widgetDefault
22	option add *VtkIsosurfaceViewer.controlBackground gray widgetDefault
23	option add *VtkIsosurfaceViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkIsosurfaceViewer.plotBackground black widgetDefault
25	option add *VtkIsosurfaceViewer.plotForeground white widgetDefault
26	option add *VtkIsosurfaceViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkIsosurfaceViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkIsosurfaceViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkIsosurfaceViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { hostlist args } {
42	Rappture::VisViewer::constructor $hostlist
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method limits { colormap }
60	public method parameters {title args} {
61	# do nothing
62	}
63	public method scale {args}
64
65	# The following methods are only used by this class.
66
67	private method AdjustSetting {what {value ""}}
68	private method BuildAxisTab {}
69	private method BuildCameraTab {}
70	private method BuildColormap { name }
71	private method BuildCutplaneTab {}
72	private method BuildDownloadPopup { widget command }
73	private method BuildIsosurfaceTab {}
74	private method Combo { option }
75	private method Connect {}
76	private method CurrentDatasets {args}
77	private method Disconnect {}
78	private method DoChangeContourLevels {}
79	private method DoResize {}
80	private method DoRotate {}
81	private method DrawLegend {}
82	private method EnterLegend { x y }
83	private method EventuallyChangeContourLevels {}
84	private method EventuallyRequestLegend {}
85	private method EventuallyResize { w h }
86	private method EventuallyRotate { q }
87	private method EventuallySetCutplane { axis args }
88	private method GenerateContourList {}
89	private method GetImage { args }
90	private method GetVtkData { args }
91	private method InitSettings { args }
92	private method IsValidObject { dataobj }
93	private method LeaveLegend {}
94	private method MotionLegend { x y }
95	private method Pan {option x y}
96	private method PanCamera {}
97	private method Pick {x y}
98	private method Rebuild {}
99	private method ReceiveDataset { args }
100	private method ReceiveImage { args }
101	private method ReceiveLegend { colormap title vmin vmax size }
102	private method RequestLegend {}
103	private method Rotate {option x y}
104	private method SetCurrentColormap { color }
105	private method SetLegendTip { x y }
106	private method SetObjectStyle { dataobj comp }
107	private method SetOrientation { side }
108	private method Slice {option args}
109	private method Zoom {option}
110	private method ViewToQuaternion {} {
111	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
112	}
113
114	private variable _arcball ""
115
116	private variable _dlist "" ; # list of data objects
117	private variable _obj2datasets
118	private variable _obj2ovride ; # maps dataobj => style override
119	private variable _datasets ; # contains all the dataobj-component
120	; # datasets in the server
121	private variable _colormaps ; # contains all the colormaps
122	; # in the server.
123	# The name of the current colormap used. The colormap is global to all
124	# heightmaps displayed.
125	private variable _currentColormap ""
126	private variable _currentNumContours -1
127
128	private variable _dataset2style ;# maps dataobj-component to transfunc
129
130	private variable _click ; # info used for rotate operations
131	private variable _limits ; # autoscale min/max for all axes
132	private variable _view ; # view params for 3D view
133	private variable _settings
134	private variable _style; # Array of current component styles.
135	private variable _changed
136	private variable _initialStyle; # Array of initial component styles.
137	private variable _reset 1; # indicates if camera needs to be reset
138	# to starting position.
139
140	private variable _first "" ; # This is the topmost dataset.
141	private variable _start 0
142	private variable _title ""
143	private variable _isolines
144	private variable _contourList
145	private variable _currentLimits ""
146	private variable _widget
147
148	common _downloadPopup; # download options from popup
149	private common _hardcopy
150	private variable _width 0
151	private variable _height 0
152	private variable _resizePending 0
153	private variable _rotatePending 0
154	private variable _cutplanePending 0
155	private variable _legendPending 0
156	private variable _field ""
157	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
158	private variable _fieldNames {}
159	private variable _fields
160	private variable _curFldName ""
161	private variable _curFldLabel ""
162	}
163
164	itk::usual VtkIsosurfaceViewer {
165	keep -background -foreground -cursor -font
166	keep -plotbackground -plotforeground
167	}
168
169	# ----------------------------------------------------------------------
170	# CONSTRUCTOR
171	# ----------------------------------------------------------------------
172	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
173	package require vtk
174	set _serverType "vtkvis"
175
176	# Rebuild event
177	$_dispatcher register !rebuild
178	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
179
180	# Resize event
181	$_dispatcher register !resize
182	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
183
184	# Rotate event
185	$_dispatcher register !rotate
186	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
187
188	# Legend event
189	$_dispatcher register !legend
190	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
191
192	# Contour levels event
193	$_dispatcher register !contours
194	$_dispatcher dispatch $this !contours \
195	"[itcl::code $this DoChangeContourLevels]; list"
196
197	# X-Cutplane event
198	$_dispatcher register !xcutplane
199	$_dispatcher dispatch $this !xcutplane \
200	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
201
202	# Y-Cutplane event
203	$_dispatcher register !ycutplane
204	$_dispatcher dispatch $this !ycutplane \
205	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
206
207	# Z-Cutplane event
208	$_dispatcher register !zcutplane
209	$_dispatcher dispatch $this !zcutplane \
210	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
211
212	#
213	# Populate parser with commands handle incoming requests
214	#
215	$_parser alias image [itcl::code $this ReceiveImage]
216	$_parser alias dataset [itcl::code $this ReceiveDataset]
217	$_parser alias legend [itcl::code $this ReceiveLegend]
218
219	# Initialize the view to some default parameters.
220	array set _view {
221	-ortho 0
222	-qw 0.853553
223	-qx -0.353553
224	-qy 0.353553
225	-qz 0.146447
226	-xpan 0
227	-ypan 0
228	-zoom 1.0
229	}
230	set _arcball [blt::arcball create 100 100]
231	$_arcball quaternion [ViewToQuaternion]
232
233	array set _contourList {
234	numLevels 10
235	reqValues ""
236	updatePending 0
237	values ""
238	}
239	array set _settings {
240	-axesvisible 1
241	-axislabelsvisible 1
242	-axismode "static"
243	-background black
244	-colormap BCGYR
245	-colormapvisible 1
246	-cutplaneedges 0
247	-cutplanelighting 1
248	-cutplaneopacity 1.0
249	-cutplanepreinterp 1
250	-cutplanesvisible 0
251	-cutplanewireframe 0
252	-field "Default"
253	-isolinecolor white
254	-isosurfaceedges 0
255	-isosurfacelighting 1
256	-isosurfaceopacity 0.6
257	-isosurfacevisible 1
258	-isosurfacewireframe 0
259	-legendvisible 1
260	-numcontours 10
261	-outline 0
262	-xcutplaneposition 50
263	-xcutplanevisible 1
264	-xgrid 0
265	-ycutplaneposition 50
266	-ycutplanevisible 1
267	-ygrid 0
268	-zcutplaneposition 50
269	-zcutplanevisible 1
270	-zgrid 0
271	}
272	array set _changed {
273	-colormap 0
274	-isosurfaceopacity 0
275	-cutplaneopacity 0
276	-numcontours 0
277	}
278	array set _widget {
279	-isosurfaceopacity 60
280	-cutplaneopacity 100
281	}
282
283	itk_component add view {
284	canvas $itk_component(plotarea).view \
285	-highlightthickness 0 -borderwidth 0
286	} {
287	usual
288	ignore -highlightthickness -borderwidth -background
289	}
290
291	itk_component add fieldmenu {
292	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
293	-tearoff 0
294	} {
295	usual
296	ignore -background -foreground -relief -tearoff
297	}
298	set c $itk_component(view)
299	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
300	bind $c <4> [itcl::code $this Zoom in 0.25]
301	bind $c <5> [itcl::code $this Zoom out 0.25]
302	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
303	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
304	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
305	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
306	bind $c <Enter> "focus %W"
307	bind $c <Control-F1> [itcl::code $this ToggleConsole]
308
309	# Fix the scrollregion in case we go off screen
310	$c configure -scrollregion [$c bbox all]
311
312	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
313	set _map(cwidth) -1
314	set _map(cheight) -1
315	set _map(zoom) 1.0
316	set _map(original) ""
317
318	set f [$itk_component(main) component controls]
319	itk_component add reset {
320	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
321	-highlightthickness 0 \
322	-image [Rappture::icon reset-view] \
323	-command [itcl::code $this Zoom reset]
324	} {
325	usual
326	ignore -highlightthickness
327	}
328	pack $itk_component(reset) -side top -padx 2 -pady 2
329	Rappture::Tooltip::for $itk_component(reset) \
330	"Reset the view to the default zoom level"
331
332	itk_component add zoomin {
333	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
334	-highlightthickness 0 \
335	-image [Rappture::icon zoom-in] \
336	-command [itcl::code $this Zoom in]
337	} {
338	usual
339	ignore -highlightthickness
340	}
341	pack $itk_component(zoomin) -side top -padx 2 -pady 2
342	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
343
344	itk_component add zoomout {
345	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
346	-highlightthickness 0 \
347	-image [Rappture::icon zoom-out] \
348	-command [itcl::code $this Zoom out]
349	} {
350	usual
351	ignore -highlightthickness
352	}
353	pack $itk_component(zoomout) -side top -padx 2 -pady 2
354	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
355
356	itk_component add contour {
357	Rappture::PushButton $f.contour \
358	-onimage [Rappture::icon volume-on] \
359	-offimage [Rappture::icon volume-off] \
360	-variable [itcl::scope _settings(-isosurfacevisible)] \
361	-command [itcl::code $this AdjustSetting -isosurfacevisible]
362	}
363	$itk_component(contour) select
364	Rappture::Tooltip::for $itk_component(contour) \
365	"Hide the isosurface"
366	pack $itk_component(contour) -padx 2 -pady 2
367
368	itk_component add cutplane {
369	Rappture::PushButton $f.cutplane \
370	-onimage [Rappture::icon cutbutton] \
371	-offimage [Rappture::icon cutbutton] \
372	-variable [itcl::scope _settings(-cutplanesvisible)] \
373	-command [itcl::code $this AdjustSetting -cutplanesvisible]
374	}
375	Rappture::Tooltip::for $itk_component(cutplane) \
376	"Show the cutplanes"
377	pack $itk_component(cutplane) -padx 2 -pady 2
378
379
380	if { [catch {
381	BuildIsosurfaceTab
382	BuildCutplaneTab
383	BuildAxisTab
384	BuildCameraTab
385	} errs] != 0 } {
386	puts stderr errs=$errs
387	}
388	# Legend
389
390	set _image(legend) [image create photo]
391	itk_component add legend {
392	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
393	} {
394	usual
395	ignore -highlightthickness
396	rename -background -plotbackground plotBackground Background
397	}
398
399	# Hack around the Tk panewindow. The problem is that the requested
400	# size of the 3d view isn't set until an image is retrieved from
401	# the server. So the panewindow uses the tiny size.
402	set w 10000
403	pack forget $itk_component(view)
404	blt::table $itk_component(plotarea) \
405	0,0 $itk_component(view) -fill both -reqwidth $w
406	blt::table configure $itk_component(plotarea) c1 -resize none
407
408	# Bindings for rotation via mouse
409	bind $itk_component(view) <ButtonPress-1> \
410	[itcl::code $this Rotate click %x %y]
411	bind $itk_component(view) <B1-Motion> \
412	[itcl::code $this Rotate drag %x %y]
413	bind $itk_component(view) <ButtonRelease-1> \
414	[itcl::code $this Rotate release %x %y]
415
416	# Bindings for panning via mouse
417	bind $itk_component(view) <ButtonPress-2> \
418	[itcl::code $this Pan click %x %y]
419	bind $itk_component(view) <B2-Motion> \
420	[itcl::code $this Pan drag %x %y]
421	bind $itk_component(view) <ButtonRelease-2> \
422	[itcl::code $this Pan release %x %y]
423
424	#bind $itk_component(view) <ButtonRelease-3> \
425	# [itcl::code $this Pick %x %y]
426
427	# Bindings for panning via keyboard
428	bind $itk_component(view) <KeyPress-Left> \
429	[itcl::code $this Pan set -10 0]
430	bind $itk_component(view) <KeyPress-Right> \
431	[itcl::code $this Pan set 10 0]
432	bind $itk_component(view) <KeyPress-Up> \
433	[itcl::code $this Pan set 0 -10]
434	bind $itk_component(view) <KeyPress-Down> \
435	[itcl::code $this Pan set 0 10]
436	bind $itk_component(view) <Shift-KeyPress-Left> \
437	[itcl::code $this Pan set -2 0]
438	bind $itk_component(view) <Shift-KeyPress-Right> \
439	[itcl::code $this Pan set 2 0]
440	bind $itk_component(view) <Shift-KeyPress-Up> \
441	[itcl::code $this Pan set 0 -2]
442	bind $itk_component(view) <Shift-KeyPress-Down> \
443	[itcl::code $this Pan set 0 2]
444
445	# Bindings for zoom via keyboard
446	bind $itk_component(view) <KeyPress-Prior> \
447	[itcl::code $this Zoom out]
448	bind $itk_component(view) <KeyPress-Next> \
449	[itcl::code $this Zoom in]
450
451	bind $itk_component(view) <Enter> "focus $itk_component(view)"
452
453	if {[string equal "x11" [tk windowingsystem]]} {
454	# Bindings for zoom via mouse
455	bind $itk_component(view) <4> [itcl::code $this Zoom out]
456	bind $itk_component(view) <5> [itcl::code $this Zoom in]
457	}
458
459	set _image(download) [image create photo]
460
461	eval itk_initialize $args
462
463	EnableWaitDialog 500
464	Connect
465	}
466
467	# ----------------------------------------------------------------------
468	# DESTRUCTOR
469	# ----------------------------------------------------------------------
470	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
471	Disconnect
472	image delete $_image(plot)
473	image delete $_image(download)
474	catch { blt::arcball destroy $_arcball }
475	}
476
477	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
478	if { $_width < 2 } {
479	set _width 500
480	}
481	if { $_height < 2 } {
482	set _height 500
483	}
484	set _start [clock clicks -milliseconds]
485	SendCmd "screen size $_width $_height"
486
487	EventuallyRequestLegend
488	set _resizePending 0
489	}
490
491	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
492	GenerateContourList
493	SendCmd [list contour3d contourlist $_contourList(values)]
494	SendCmd [list camera reset]
495	DrawLegend
496	set _contourList(updatePending) 0
497	}
498
499	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
500	SendCmd "camera orient [ViewToQuaternion]"
501	set _rotatePending 0
502	}
503
504	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
505	if { !$_legendPending } {
506	set _legendPending 1
507	$_dispatcher event -idle !legend
508	}
509	}
510
511	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
512	set _width $w
513	set _height $h
514	$_arcball resize $w $h
515	if { !$_resizePending } {
516	set _resizePending 1
517	$_dispatcher event -after 400 !resize
518	}
519	}
520
521	set rotate_delay 100
522
523	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
524	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
525	if { !$_rotatePending } {
526	set _rotatePending 1
527	global rotate_delay
528	$_dispatcher event -after $rotate_delay !rotate
529	}
530	}
531
532	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
533	if { !$_cutplanePending } {
534	set _cutplanePending 1
535	$_dispatcher event -after 100 !${axis}cutplane
536	}
537	}
538
539	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
540	set n $_contourList(numLevels)
541	set _contourList(values) ""
542	if { !$_contourList(updatePending) } {
543	set _contourList(updatePending) 1
544	global rotate_delay
545	$_dispatcher event -after $rotate_delay !contours
546	}
547	}
548
549	# ----------------------------------------------------------------------
550	# USAGE: add <dataobj> ?<settings>?
551	#
552	# Clients use this to add a data object to the plot. The optional
553	# <settings> are used to configure the plot. Allowed settings are
554	# -color, -brightness, -width, -linestyle, and -raise.
555	# ----------------------------------------------------------------------
556	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
557	if { ![$dataobj isvalid] } {
558	return; # Object doesn't contain valid data.
559	}
560	array set params {
561	-color auto
562	-width 1
563	-linestyle solid
564	-brightness 0
565	-raise 0
566	-description ""
567	-param ""
568	-type ""
569	}
570	array set params $settings
571	set params(-description) ""
572	set params(-param) ""
573	array set params $settings
574
575	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
576	# can't handle -autocolors yet
577	set params(-color) black
578	}
579	set pos [lsearch -exact $_dlist $dataobj]
580	if {$pos < 0} {
581	lappend _dlist $dataobj
582	}
583	set _obj2ovride($dataobj-color) $params(-color)
584	set _obj2ovride($dataobj-width) $params(-width)
585	set _obj2ovride($dataobj-raise) $params(-raise)
586	$_dispatcher event -idle !rebuild
587	}
588
589
590	# ----------------------------------------------------------------------
591	# USAGE: delete ?<dataobj1> <dataobj2> ...?
592	#
593	# Clients use this to delete a dataobj from the plot. If no dataobjs
594	# are specified, then all dataobjs are deleted. No data objects are
595	# deleted. They are only removed from the display list.
596	#
597	# ----------------------------------------------------------------------
598	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
599	if { [llength $args] == 0} {
600	set args $_dlist
601	}
602	# Delete all specified dataobjs
603	set changed 0
604	foreach dataobj $args {
605	set pos [lsearch -exact $_dlist $dataobj]
606	if { $pos < 0 } {
607	continue; # Don't know anything about it.
608	}
609	# Remove it from the dataobj list.
610	set _dlist [lreplace $_dlist $pos $pos]
611	array unset _obj2ovride $dataobj-*
612	array unset _settings $dataobj-*
613	set changed 1
614	}
615	# If anything changed, then rebuild the plot
616	if { $changed } {
617	$_dispatcher event -idle !rebuild
618	}
619	}
620
621	# ----------------------------------------------------------------------
622	# USAGE: get ?-objects?
623	# USAGE: get ?-visible?
624	# USAGE: get ?-image view?
625	#
626	# Clients use this to query the list of objects being plotted, in
627	# order from bottom to top of this result. The optional "-image"
628	# flag can also request the internal images being shown.
629	# ----------------------------------------------------------------------
630	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
631	if {[llength $args] == 0} {
632	set args "-objects"
633	}
634
635	set op [lindex $args 0]
636	switch -- $op {
637	"-objects" {
638	# put the dataobj list in order according to -raise options
639	set dlist {}
640	foreach dataobj $_dlist {
641	if { ![IsValidObject $dataobj] } {
642	continue
643	}
644	if {[info exists _obj2ovride($dataobj-raise)] &&
645	$_obj2ovride($dataobj-raise)} {
646	set dlist [linsert $dlist 0 $dataobj]
647	} else {
648	lappend dlist $dataobj
649	}
650	}
651	return $dlist
652	}
653	"-visible" {
654	set dlist {}
655	foreach dataobj $_dlist {
656	if { ![IsValidObject $dataobj] } {
657	continue
658	}
659	if { ![info exists _obj2ovride($dataobj-raise)] } {
660	# No setting indicates that the object isn't visible.
661	continue
662	}
663	# Otherwise use the -raise parameter to put the object to
664	# the front of the list.
665	if { $_obj2ovride($dataobj-raise) } {
666	set dlist [linsert $dlist 0 $dataobj]
667	} else {
668	lappend dlist $dataobj
669	}
670	}
671	return $dlist
672	}
673	-image {
674	if {[llength $args] != 2} {
675	error "wrong # args: should be \"get -image view\""
676	}
677	switch -- [lindex $args end] {
678	view {
679	return $_image(plot)
680	}
681	default {
682	error "bad image name \"[lindex $args end]\": should be view"
683	}
684	}
685	}
686	default {
687	error "bad option \"$op\": should be -objects or -image"
688	}
689	}
690	}
691
692	# ----------------------------------------------------------------------
693	# USAGE: scale ?<data1> <data2> ...?
694	#
695	# Sets the default limits for the overall plot according to the
696	# limits of the data for all of the given <data> objects. This
697	# accounts for all objects--even those not showing on the screen.
698	# Because of this, the limits are appropriate for all objects as
699	# the user scans through data in the ResultSet viewer.
700	# ----------------------------------------------------------------------
701	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
702	foreach dataobj $args {
703	if { ![$dataobj isvalid] } {
704	continue; # Object doesn't contain valid data.
705	}
706	foreach axis { x y z } {
707	set lim [$dataobj limits $axis]
708	if { ![info exists _limits($axis)] } {
709	set _limits($axis) $lim
710	continue
711	}
712	foreach {min max} $lim break
713	foreach {amin amax} $_limits($axis) break
714	if { $amin > $min } {
715	set amin $min
716	}
717	if { $amax < $max } {
718	set amax $max
719	}
720	set _limits($axis) [list $amin $amax]
721	}
722	foreach { fname lim } [$dataobj fieldlimits] {
723	if { ![info exists _limits($fname)] } {
724	set _limits($fname) $lim
725	continue
726	}
727	foreach {min max} $lim break
728	foreach {fmin fmax} $_limits($fname) break
729	if { $fmin > $min } {
730	set fmin $min
731	}
732	if { $fmax < $max } {
733	set fmax $max
734	}
735	set _limits($fname) [list $fmin $fmax]
736	}
737	}
738	}
739
740	# ----------------------------------------------------------------------
741	# USAGE: download coming
742	# USAGE: download controls <downloadCommand>
743	# USAGE: download now
744	#
745	# Clients use this method to create a downloadable representation
746	# of the plot. Returns a list of the form {ext string}, where
747	# "ext" is the file extension (indicating the type of data) and
748	# "string" is the data itself.
749	# ----------------------------------------------------------------------
750	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
751	switch $option {
752	coming {
753	if {[catch {
754	blt::winop snap $itk_component(plotarea) $_image(download)
755	}]} {
756	$_image(download) configure -width 1 -height 1
757	$_image(download) put #000000
758	}
759	}
760	controls {
761	set popup .vtkviewerdownload
762	if { ![winfo exists .vtkviewerdownload] } {
763	set inner [BuildDownloadPopup $popup [lindex $args 0]]
764	} else {
765	set inner [$popup component inner]
766	}
767	set _downloadPopup(image_controls) $inner.image_frame
768	set num [llength [get]]
769	set num [expr {($num == 1) ? "1 result" : "$num results"}]
770	set word [Rappture::filexfer::label downloadWord]
771	$inner.summary configure -text "$word $num in the following format:"
772	update idletasks ;# Fix initial sizes
773	return $popup
774	}
775	now {
776	set popup .vtkviewerdownload
777	if {[winfo exists .vtkviewerdownload]} {
778	$popup deactivate
779	}
780	switch -- $_downloadPopup(format) {
781	"image" {
782	return [$this GetImage [lindex $args 0]]
783	}
784	"vtk" {
785	return [$this GetVtkData [lindex $args 0]]
786	}
787	}
788	return ""
789	}
790	default {
791	error "bad option \"$option\": should be coming, controls, now"
792	}
793	}
794	}
795
796	# ----------------------------------------------------------------------
797	# USAGE: Connect ?<host:port>,<host:port>...?
798	#
799	# Clients use this method to establish a connection to a new
800	# server, or to reestablish a connection to the previous server.
801	# Any existing connection is automatically closed.
802	# ----------------------------------------------------------------------
803	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
804	set _hosts [GetServerList "vtkvis"]
805	if { "" == $_hosts } {
806	return 0
807	}
808	set result [VisViewer::Connect $_hosts]
809	if { $result } {
810	if { $_reportClientInfo } {
811	# Tell the server the viewer, hub, user and session.
812	# Do this immediately on connect before buffering any commands
813	global env
814
815	set info {}
816	set user "???"
817	if { [info exists env(USER)] } {
818	set user $env(USER)
819	}
820	set session "???"
821	if { [info exists env(SESSION)] } {
822	set session $env(SESSION)
823	}
824	lappend info "hub" [exec hostname]
825	lappend info "client" "vtkisosurfaceviewer"
826	lappend info "user" $user
827	lappend info "session" $session
828	SendCmd "clientinfo [list $info]"
829	}
830
831	set w [winfo width $itk_component(view)]
832	set h [winfo height $itk_component(view)]
833	EventuallyResize $w $h
834	}
835	return $result
836	}
837
838	#
839	# isconnected --
840	#
841	# Indicates if we are currently connected to the visualization server.
842	#
843	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
844	return [VisViewer::IsConnected]
845	}
846
847	#
848	# disconnect --
849	#
850	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
851	Disconnect
852	set _reset 1
853	}
854
855	#
856	# Disconnect --
857	#
858	# Clients use this method to disconnect from the current rendering
859	# server.
860	#
861	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
862	VisViewer::Disconnect
863
864	$_dispatcher cancel !rebuild
865	$_dispatcher cancel !resize
866	$_dispatcher cancel !rotate
867	$_dispatcher cancel !xcutplane
868	$_dispatcher cancel !ycutplane
869	$_dispatcher cancel !zcutplane
870	$_dispatcher cancel !legend
871	# disconnected -- no more data sitting on server
872	set _outbuf ""
873	array unset _datasets
874	array unset _data
875	array unset _colormaps
876	array unset _seeds
877	array unset _dataset2style
878	array unset _obj2datasets
879	}
880
881	# ----------------------------------------------------------------------
882	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
883	#
884	# Invoked automatically whenever the "image" command comes in from
885	# the rendering server. Indicates that binary image data with the
886	# specified <size> will follow.
887	# ----------------------------------------------------------------------
888	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
889	array set info {
890	-token "???"
891	-bytes 0
892	-type image
893	}
894	array set info $args
895	set bytes [ReceiveBytes $info(-bytes)]
896	if { $info(-type) == "image" } {
897	if 0 {
898	set f [open "last.ppm" "w"]
899	puts $f $bytes
900	close $f
901	}
902	$_image(plot) configure -data $bytes
903	#set time [clock seconds]
904	#set date [clock format $time]
905	#set w [image width $_image(plot)]
906	#set h [image height $_image(plot)]
907	#puts stderr "$date: received image ${w}x${h} image"
908	if { $_start > 0 } {
909	set finish [clock clicks -milliseconds]
910	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
911	set _start 0
912	}
913	} elseif { $info(type) == "print" } {
914	set tag $this-print-$info(-token)
915	set _hardcopy($tag) $bytes
916	}
917	}
918
919	#
920	# ReceiveDataset --
921	#
922	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
923	if { ![isconnected] } {
924	return
925	}
926	set option [lindex $args 0]
927	switch -- $option {
928	"scalar" {
929	set option [lindex $args 1]
930	switch -- $option {
931	"world" {
932	foreach { x y z value tag } [lrange $args 2 end] break
933	}
934	"pixel" {
935	foreach { x y value tag } [lrange $args 2 end] break
936	}
937	}
938	}
939	"vector" {
940	set option [lindex $args 1]
941	switch -- $option {
942	"world" {
943	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
944	}
945	"pixel" {
946	foreach { x y vx vy vz tag } [lrange $args 2 end] break
947	}
948	}
949	}
950	"names" {
951	foreach { name } [lindex $args 1] {
952	#puts stderr "Dataset: $name"
953	}
954	}
955	default {
956	error "unknown dataset option \"$option\" from server"
957	}
958	}
959	}
960
961	# ----------------------------------------------------------------------
962	# USAGE: Rebuild
963	#
964	# Called automatically whenever something changes that affects the
965	# data in the widget. Clears any existing data and rebuilds the
966	# widget to display new data.
967	# ----------------------------------------------------------------------
968	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
969	set w [winfo width $itk_component(view)]
970	set h [winfo height $itk_component(view)]
971	if { $w < 2 \|\| $h < 2 } {
972	$_dispatcher event -idle !rebuild
973	return
974	}
975
976	# Turn on buffering of commands to the server. We don't want to
977	# be preempted by a server disconnect/reconnect (which automatically
978	# generates a new call to Rebuild).
979	StartBufferingCommands
980	if { $_reset } {
981	set _width $w
982	set _height $h
983	$_arcball resize $w $h
984	DoResize
985
986	# Reset the camera and other view parameters
987	$_arcball quaternion [ViewToQuaternion]
988	DoRotate
989	PanCamera
990	set _first ""
991	InitSettings -xgrid -ygrid -zgrid -axismode \
992	-axesvisible -axislabelsvisible -ortho
993	SendCmd "axis lformat all %g"
994	# Too many major ticks, so turn off minor ticks
995	SendCmd "axis minticks all 0"
996	StopBufferingCommands
997	SendCmd "imgflush"
998	StartBufferingCommands
999	}
1000	set _first ""
1001	SendCmd "dataset visible 0"
1002	foreach dataobj [get -objects] {
1003	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1004	set _first $dataobj
1005	}
1006	set _obj2datasets($dataobj) ""
1007	foreach comp [$dataobj components] {
1008	set tag $dataobj-$comp
1009	if { ![info exists _datasets($tag)] } {
1010	set bytes [$dataobj vtkdata $comp]
1011	if 0 {
1012	set f [open "/tmp/isosurface.vtk" "w"]
1013	puts $f $bytes
1014	close $f
1015	}
1016	set length [string length $bytes]
1017	if { $_reportClientInfo } {
1018	set info {}
1019	lappend info "tool_id" [$dataobj hints toolId]
1020	lappend info "tool_name" [$dataobj hints toolName]
1021	lappend info "tool_version" [$dataobj hints toolRevision]
1022	lappend info "tool_title" [$dataobj hints toolTitle]
1023	lappend info "dataset_label" [$dataobj hints label]
1024	lappend info "dataset_size" $length
1025	lappend info "dataset_tag" $tag
1026	SendCmd "clientinfo [list $info]"
1027	}
1028	append _outbuf "dataset add $tag data follows $length\n"
1029	append _outbuf $bytes
1030	set _datasets($tag) 1
1031	SetObjectStyle $dataobj $comp
1032	}
1033	lappend _obj2datasets($dataobj) $tag
1034	if { [info exists _obj2ovride($dataobj-raise)] } {
1035	SendCmd "contour3d visible 1 $tag"
1036	}
1037	}
1038	}
1039
1040	if { $_first != "" } {
1041	$itk_component(field) choices delete 0 end
1042	$itk_component(fieldmenu) delete 0 end
1043	array unset _fields
1044	set _curFldName ""
1045	foreach cname [$_first components] {
1046	foreach fname [$_first fieldnames $cname] {
1047	if { [info exists _fields($fname)] } {
1048	continue
1049	}
1050	foreach { label units components } \
1051	[$_first fieldinfo $fname] break
1052	$itk_component(field) choices insert end "$fname" "$label"
1053	$itk_component(fieldmenu) add radiobutton -label "$label" \
1054	-value $label -variable [itcl::scope _curFldLabel] \
1055	-selectcolor red \
1056	-activebackground $itk_option(-plotbackground) \
1057	-activeforeground $itk_option(-plotforeground) \
1058	-font "Arial 8" \
1059	-command [itcl::code $this Combo invoke]
1060	set _fields($fname) [list $label $units $components]
1061	if { $_curFldName == "" } {
1062	set _curFldName $fname
1063	set _curFldLabel $label
1064	}
1065	}
1066	}
1067	$itk_component(field) value $_curFldLabel
1068
1069	if { ![info exists _limits($_curFldName)] } {
1070	SendCmd "dataset maprange all"
1071	} else {
1072	set limits $_limits($_curFldName)
1073	SendCmd "dataset maprange explicit $limits $_curFldName"
1074	if { $limits != $_currentLimits } {
1075	set _currentLimits $limits
1076	EventuallyChangeContourLevels
1077	}
1078	}
1079	}
1080	InitSettings -cutplanesvisible -isosurfacevisible -outline
1081	if { $_reset } {
1082	# These are settings that rely on a dataset being loaded.
1083	InitSettings \
1084	-isosurfacelighting \
1085	-field \
1086	-isosurfacevisible \
1087	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1088	-isosurfacewireframe \
1089	-cutplanesvisible \
1090	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1091	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1092	-cutplanepreinterp -numcontours
1093
1094	Zoom reset
1095	foreach axis { x y z } {
1096	# Another problem fixed by a <view>. We looking into a data
1097	# object for the name of the axes. This should be global to
1098	# the viewer itself.
1099	set label [$_first hints ${axis}label]
1100	if { $label == "" } {
1101	set label [string toupper $axis]
1102	}
1103	SendCmd [list axis name $axis $label]
1104	}
1105	if { [array size _fields] < 2 } {
1106	blt::table forget $itk_component(field) $itk_component(field_l)
1107	}
1108	set _reset 0
1109	}
1110	# Redraw the legend even if we're using the same colormap. The position
1111	# of the isolines may have changed because the range of data changed.
1112	DrawLegend
1113
1114	# Actually write the commands to the server socket. If it fails, we don't
1115	# care. We're finished here.
1116	blt::busy hold $itk_component(hull)
1117	StopBufferingCommands; # Turn off buffering and send commands.
1118	blt::busy release $itk_component(hull)
1119	}
1120
1121	# ----------------------------------------------------------------------
1122	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1123	#
1124	# Returns a list of server IDs for the current datasets being displayed. This
1125	# is normally a single ID, but it might be a list of IDs if the current data
1126	# object has multiple components.
1127	# ----------------------------------------------------------------------
1128	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1129	set flag [lindex $args 0]
1130	switch -- $flag {
1131	"-all" {
1132	if { [llength $args] > 1 } {
1133	error "CurrentDatasets: can't specify dataobj after \"-all\""
1134	}
1135	set dlist [get -objects]
1136	}
1137	"-visible" {
1138	if { [llength $args] > 1 } {
1139	set dlist {}
1140	set args [lrange $args 1 end]
1141	foreach dataobj $args {
1142	if { [info exists _obj2ovride($dataobj-raise)] } {
1143	lappend dlist $dataobj
1144	}
1145	}
1146	} else {
1147	set dlist [get -visible]
1148	}
1149	}
1150	default {
1151	set dlist $args
1152	}
1153	}
1154	set rlist ""
1155	foreach dataobj $dlist {
1156	foreach comp [$dataobj components] {
1157	set tag $dataobj-$comp
1158	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1159	lappend rlist $tag
1160	}
1161	}
1162	}
1163	return $rlist
1164	}
1165
1166	# ----------------------------------------------------------------------
1167	# USAGE: Zoom in
1168	# USAGE: Zoom out
1169	# USAGE: Zoom reset
1170	#
1171	# Called automatically when the user clicks on one of the zoom
1172	# controls for this widget. Changes the zoom for the current view.
1173	# ----------------------------------------------------------------------
1174	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1175	switch -- $option {
1176	"in" {
1177	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1178	SendCmd "camera zoom $_view(-zoom)"
1179	}
1180	"out" {
1181	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1182	SendCmd "camera zoom $_view(-zoom)"
1183	}
1184	"reset" {
1185	array set _view {
1186	-qw 0.853553
1187	-qx -0.353553
1188	-qy 0.353553
1189	-qz 0.146447
1190	-xpan 0
1191	-ypan 0
1192	-zoom 1.0
1193	}
1194	if { $_first != "" } {
1195	set location [$_first hints camera]
1196	if { $location != "" } {
1197	array set _view $location
1198	}
1199	}
1200	$_arcball quaternion [ViewToQuaternion]
1201	DoRotate
1202	SendCmd "camera reset"
1203	}
1204	}
1205	}
1206
1207	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1208	set x $_view(-xpan)
1209	set y $_view(-ypan)
1210	SendCmd "camera pan $x $y"
1211	}
1212
1213
1214	# ----------------------------------------------------------------------
1215	# USAGE: Rotate click <x> <y>
1216	# USAGE: Rotate drag <x> <y>
1217	# USAGE: Rotate release <x> <y>
1218	#
1219	# Called automatically when the user clicks/drags/releases in the
1220	# plot area. Moves the plot according to the user's actions.
1221	# ----------------------------------------------------------------------
1222	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1223	switch -- $option {
1224	"click" {
1225	$itk_component(view) configure -cursor fleur
1226	set _click(x) $x
1227	set _click(y) $y
1228	}
1229	"drag" {
1230	if {[array size _click] == 0} {
1231	Rotate click $x $y
1232	} else {
1233	set w [winfo width $itk_component(view)]
1234	set h [winfo height $itk_component(view)]
1235	if {$w <= 0 \|\| $h <= 0} {
1236	return
1237	}
1238
1239	if {[catch {
1240	# this fails sometimes for no apparent reason
1241	set dx [expr {double($x-$_click(x))/$w}]
1242	set dy [expr {double($y-$_click(y))/$h}]
1243	}]} {
1244	return
1245	}
1246	if { $dx == 0 && $dy == 0 } {
1247	return
1248	}
1249	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1250	EventuallyRotate $q
1251	set _click(x) $x
1252	set _click(y) $y
1253	}
1254	}
1255	"release" {
1256	Rotate drag $x $y
1257	$itk_component(view) configure -cursor ""
1258	catch {unset _click}
1259	}
1260	default {
1261	error "bad option \"$option\": should be click, drag, release"
1262	}
1263	}
1264	}
1265
1266	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1267	foreach tag [CurrentDatasets -visible] {
1268	SendCmdNoSplash "dataset getscalar pixel $x $y $tag"
1269	}
1270	}
1271
1272	# ----------------------------------------------------------------------
1273	# USAGE: $this Pan click x y
1274	# $this Pan drag x y
1275	# $this Pan release x y
1276	#
1277	# Called automatically when the user clicks on one of the zoom
1278	# controls for this widget. Changes the zoom for the current view.
1279	# ----------------------------------------------------------------------
1280	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1281	switch -- $option {
1282	"set" {
1283	set w [winfo width $itk_component(view)]
1284	set h [winfo height $itk_component(view)]
1285	set x [expr $x / double($w)]
1286	set y [expr $y / double($h)]
1287	set _view(-xpan) [expr $_view(-xpan) + $x]
1288	set _view(-ypan) [expr $_view(-ypan) + $y]
1289	PanCamera
1290	return
1291	}
1292	"click" {
1293	set _click(x) $x
1294	set _click(y) $y
1295	$itk_component(view) configure -cursor hand1
1296	}
1297	"drag" {
1298	if { ![info exists _click(x)] } {
1299	set _click(x) $x
1300	}
1301	if { ![info exists _click(y)] } {
1302	set _click(y) $y
1303	}
1304	set w [winfo width $itk_component(view)]
1305	set h [winfo height $itk_component(view)]
1306	set dx [expr ($_click(x) - $x)/double($w)]
1307	set dy [expr ($_click(y) - $y)/double($h)]
1308	set _click(x) $x
1309	set _click(y) $y
1310	set _view(-xpan) [expr $_view(-xpan) - $dx]
1311	set _view(-ypan) [expr $_view(-ypan) - $dy]
1312	PanCamera
1313	}
1314	"release" {
1315	Pan drag $x $y
1316	$itk_component(view) configure -cursor ""
1317	}
1318	default {
1319	error "unknown option \"$option\": should set, click, drag, or release"
1320	}
1321	}
1322	}
1323
1324	# ----------------------------------------------------------------------
1325	# USAGE: InitSettings <what> ?<value>?
1326	#
1327	# Used internally to update rendering settings whenever parameters
1328	# change in the popup settings panel. Sends the new settings off
1329	# to the back end.
1330	# ----------------------------------------------------------------------
1331	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1332	foreach spec $args {
1333	if { [info exists _settings($_first-$spec)] } {
1334	# Reset global setting with dataobj specific setting
1335	set _settings($spec) $_settings($_first-$spec)
1336	}
1337	AdjustSetting $spec
1338	}
1339	}
1340
1341	#
1342	# AdjustSetting --
1343	#
1344	# Changes/updates a specific setting in the widget. There are
1345	# usually user-setable option. Commands are sent to the render
1346	# server.
1347	#
1348	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1349	if { ![isconnected] } {
1350	return
1351	}
1352	switch -- $what {
1353	"-axesvisible" {
1354	set bool $_settings($what)
1355	SendCmd "axis visible all $bool"
1356	}
1357	"-axislabelsvisible" {
1358	set bool $_settings($what)
1359	SendCmd "axis labels all $bool"
1360	}
1361	"-axismode" {
1362	set mode [$itk_component(axisMode) value]
1363	set mode [$itk_component(axisMode) translate $mode]
1364	set _settings($what) $mode
1365	SendCmd "axis flymode $mode"
1366	}
1367	"-background" {
1368	set bgcolor [$itk_component(background) value]
1369	array set fgcolors {
1370	"black" "white"
1371	"white" "black"
1372	"grey" "black"
1373	}
1374	configure -plotbackground $bgcolor \
1375	-plotforeground $fgcolors($bgcolor)
1376	$itk_component(view) delete "legend"
1377	DrawLegend
1378	}
1379	"-cutplaneedges" {
1380	set bool $_settings($what)
1381	SendCmd "cutplane edges $bool"
1382	}
1383	"-cutplanelighting" {
1384	set bool $_settings($what)
1385	SendCmd "cutplane lighting $bool"
1386	}
1387	"-cutplaneopacity" {
1388	set _settings($what) [expr $_widget($what) * 0.01]
1389	SendCmd "cutplane opacity $_settings($what)"
1390	}
1391	"-cutplanepreinterp" {
1392	set bool $_settings($what)
1393	SendCmd "cutplane preinterp $bool"
1394	}
1395	"-cutplanesvisible" {
1396	set bool $_settings($what)
1397	SendCmd "cutplane visible 0"
1398	if { $bool } {
1399	foreach tag [CurrentDatasets -visible] {
1400	SendCmd "cutplane visible $bool $tag"
1401	}
1402	}
1403	if { $bool } {
1404	Rappture::Tooltip::for $itk_component(cutplane) \
1405	"Hide the cutplanes"
1406	} else {
1407	Rappture::Tooltip::for $itk_component(cutplane) \
1408	"Show the cutplanes"
1409	}
1410	}
1411	"-cutplanewireframe" {
1412	set bool $_settings($what)
1413	SendCmd "cutplane wireframe $bool"
1414	}
1415	"-colormap" {
1416	set _changed($what) 1
1417	StartBufferingCommands
1418	set color [$itk_component(colormap) value]
1419	set _settings($what) $color
1420	if { $color == "none" } {
1421	if { $_settings(-colormapvisible) } {
1422	SendCmd "contour3d colormode constant {}"
1423	set _settings(-colormapvisible) 0
1424	}
1425	} else {
1426	if { !$_settings(-colormapvisible) } {
1427	SendCmd "contour3d colormode $_colorMode $_curFldName"
1428	set _settings(-colormapvisible) 1
1429	}
1430	SetCurrentColormap $color
1431	}
1432	StopBufferingCommands
1433	EventuallyRequestLegend
1434	}
1435	"-field" {
1436	set label [$itk_component(field) value]
1437	set fname [$itk_component(field) translate $label]
1438	set _settings($what) $fname
1439	if { [info exists _fields($fname)] } {
1440	foreach { label units components } $_fields($fname) break
1441	if { $components > 1 } {
1442	set _colorMode vmag
1443	} else {
1444	set _colorMode scalar
1445	}
1446	set _curFldName $fname
1447	set _curFldLabel $label
1448	} else {
1449	puts stderr "unknown field \"$fname\""
1450	return
1451	}
1452	SendCmd "dataset scalar $_curFldName"
1453	if { ![info exists _limits($_curFldName)] } {
1454	SendCmd "dataset maprange all"
1455	} else {
1456	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1457	}
1458	SendCmd "cutplane colormode $_colorMode $_curFldName"
1459	SendCmd "contour3d colormode $_colorMode $_curFldName"
1460	SendCmd "camera reset"
1461	GenerateContourList
1462	DrawLegend
1463	}
1464	"-isolinecolor" {
1465	set color [$itk_component(isolineColor) value]
1466	set _settings(-isolinecolor) $color
1467	set _settings($what) $color
1468	DrawLegend
1469	}
1470	"-isosurfaceedges" {
1471	set bool $_settings($what)
1472	SendCmd "contour3d edges $bool"
1473	}
1474	"-isosurfacelighting" {
1475	set bool $_settings($what)
1476	SendCmd "contour3d lighting $bool"
1477	}
1478	"-isosurfaceopacity" {
1479	set _settings($what) [expr $_widget($what) * 0.01]
1480	SendCmd "contour3d opacity $_settings($what)"
1481	}
1482	"-isosurfacevisible" {
1483	set bool $_settings($what)
1484	SendCmd "contour3d visible 0"
1485	if { $bool } {
1486	foreach tag [CurrentDatasets -visible] {
1487	SendCmd "contour3d visible $bool $tag"
1488	}
1489	}
1490	if { $bool } {
1491	Rappture::Tooltip::for $itk_component(contour) \
1492	"Hide the isosurface"
1493	} else {
1494	Rappture::Tooltip::for $itk_component(contour) \
1495	"Show the isosurface"
1496	}
1497	}
1498	"-isosurfacewireframe" {
1499	set bool $_settings($what)
1500	SendCmd "contour3d wireframe $bool"
1501	}
1502	"-legendvisible" {
1503	if { !$_settings($what) } {
1504	$itk_component(view) delete legend
1505	}
1506	DrawLegend
1507	}
1508	"-numcontours" {
1509	set _settings($what) [$itk_component(numcontours) value]
1510	if { $_contourList(numLevels) != $_settings($what) } {
1511	set _contourList(numLevels) $_settings($what)
1512	EventuallyChangeContourLevels
1513	}
1514	}
1515	"-ortho" {
1516	set bool $_view($what)
1517	if { $bool } {
1518	SendCmd "camera mode ortho"
1519	} else {
1520	SendCmd "camera mode persp"
1521	}
1522	}
1523	"-outline" {
1524	set bool $_settings($what)
1525	SendCmd "outline visible 0"
1526	if { $bool } {
1527	foreach tag [CurrentDatasets -visible] {
1528	SendCmd "outline visible $bool $tag"
1529	}
1530	}
1531	}
1532	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1533	set axis [string tolower [string range $what 1 1]]
1534	set bool $_settings($what)
1535	if { $bool } {
1536	$itk_component(${axis}position) configure -state normal \
1537	-troughcolor white
1538	} else {
1539	$itk_component(${axis}position) configure -state disabled \
1540	-troughcolor grey82
1541	}
1542	SendCmd "cutplane axis $axis $bool"
1543	}
1544	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1545	set axis [string tolower [string range $what 1 1]]
1546	set pos [expr $_settings($what) * 0.01]
1547	SendCmd "cutplane slice ${axis} ${pos}"
1548	set _cutplanePending 0
1549	}
1550	"-xgrid" - "-ygrid" - "-zgrid" {
1551	set axis [string tolower [string range $what 1 1]]
1552	set bool $_settings($what)
1553	SendCmd "axis grid $axis $bool"
1554	}
1555	default {
1556	error "don't know how to fix $what"
1557	}
1558	}
1559	}
1560
1561
1562	#
1563	# RequestLegend --
1564	#
1565	# Request a new legend from the server. The size of the legend
1566	# is determined from the height of the canvas.
1567	#
1568	# This should be called when
1569	# 1. A new current colormap is set.
1570	# 2. Window is resized.
1571	# 3. The limits of the data have changed. (Just need a redraw).
1572	# 4. Number of isolines have changed. (Just need a redraw).
1573	# 5. Legend becomes visible (Just need a redraw).
1574	#
1575	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1576	set _legendPending 0
1577	if { ![info exists _fields($_curFldName)] } {
1578	return
1579	}
1580	set fname $_curFldName
1581	set font "Arial 8"
1582	set lineht [font metrics $font -linespace]
1583	set w 12
1584	set h [expr {$_height - 2 * ($lineht + 2)}]
1585	if { $h < 1 } {
1586	return
1587	}
1588	if { [string match "component*" $fname] } {
1589	set title ""
1590	} else {
1591	if { [info exists _fields($fname)] } {
1592	foreach { title units } $_fields($fname) break
1593	if { $units != "" } {
1594	set title [format "%s (%s)" $title $units]
1595	}
1596	} else {
1597	set title $fname
1598	}
1599	}
1600	# If there's a title too, subtract one more line
1601	if { $title != "" } {
1602	incr h -$lineht
1603	}
1604	# Set the legend on the first heightmap dataset.
1605	if { $_currentColormap != "" } {
1606	set cmap $_currentColormap
1607	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1608	}
1609	}
1610
1611	# ----------------------------------------------------------------------
1612	# CONFIGURATION OPTION: -plotbackground
1613	# ----------------------------------------------------------------------
1614	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1615	if { [isconnected] } {
1616	set rgb [Color2RGB $itk_option(-plotbackground)]
1617	SendCmd "screen bgcolor $rgb"
1618	}
1619	}
1620
1621	# ----------------------------------------------------------------------
1622	# CONFIGURATION OPTION: -plotforeground
1623	# ----------------------------------------------------------------------
1624	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1625	if { [isconnected] } {
1626	set rgb [Color2RGB $itk_option(-plotforeground)]
1627	SendCmd "axis color all $rgb"
1628	SendCmd "outline color $rgb"
1629	SendCmd "cutplane color $rgb"
1630	}
1631	}
1632
1633	itcl::body Rappture::VtkIsosurfaceViewer::limits { dataobj } {
1634	foreach { limits(xmin) limits(xmax) } [$dataobj limits x] break
1635	foreach { limits(ymin) limits(ymax) } [$dataobj limits y] break
1636	foreach { limits(zmin) limits(zmax) } [$dataobj limits z] break
1637	foreach { limits(vmin) limits(vmax) } [$dataobj limits v] break
1638	return [array get limits]
1639	}
1640
1641	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1642
1643	set fg [option get $itk_component(hull) font Font]
1644	#set bfg [option get $itk_component(hull) boldFont Font]
1645
1646	set inner [$itk_component(main) insert end \
1647	-title "Isosurface Settings" \
1648	-icon [Rappture::icon volume-on]]
1649	$inner configure -borderwidth 4
1650
1651	checkbutton $inner.contour \
1652	-text "Isosurfaces" \
1653	-variable [itcl::scope _settings(-isosurfacevisible)] \
1654	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1655	-font "Arial 9"
1656
1657	checkbutton $inner.wireframe \
1658	-text "Wireframe" \
1659	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1660	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1661	-font "Arial 9"
1662
1663	checkbutton $inner.lighting \
1664	-text "Enable Lighting" \
1665	-variable [itcl::scope _settings(-isosurfacelighting)] \
1666	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1667	-font "Arial 9"
1668
1669	checkbutton $inner.edges \
1670	-text "Edges" \
1671	-variable [itcl::scope _settings(-isosurfaceedges)] \
1672	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1673	-font "Arial 9"
1674
1675	checkbutton $inner.outline \
1676	-text "Outline" \
1677	-variable [itcl::scope _settings(-outline)] \
1678	-command [itcl::code $this AdjustSetting -outline] \
1679	-font "Arial 9"
1680
1681	checkbutton $inner.legend \
1682	-text "Legend" \
1683	-variable [itcl::scope _settings(-legendvisible)] \
1684	-command [itcl::code $this AdjustSetting -legendvisible] \
1685	-font "Arial 9"
1686
1687	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1688	itk_component add isolineColor {
1689	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1690	}
1691	$inner.linecolor choices insert end \
1692	"black" "black" \
1693	"blue" "blue" \
1694	"cyan" "cyan" \
1695	"green" "green" \
1696	"grey" "grey" \
1697	"magenta" "magenta" \
1698	"orange" "orange" \
1699	"red" "red" \
1700	"white" "white" \
1701	"none" "none"
1702
1703	$itk_component(isolineColor) value "white"
1704	bind $inner.linecolor <<Value>> \
1705	[itcl::code $this AdjustSetting -isolinecolor]
1706
1707	label $inner.background_l -text "Background" -font "Arial 9"
1708	itk_component add background {
1709	Rappture::Combobox $inner.background -width 10 -editable 0
1710	}
1711	$inner.background choices insert end \
1712	"black" "black" \
1713	"white" "white" \
1714	"grey" "grey"
1715
1716	$itk_component(background) value $_settings(-background)
1717	bind $inner.background <<Value>> \
1718	[itcl::code $this AdjustSetting -background]
1719
1720	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1721	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1722	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1723	-width 10 \
1724	-showvalue off \
1725	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1726	set _widget(-isosurfaceopacity) \
1727	[expr $_settings(-isosurfaceopacity) * 100.0]
1728
1729	itk_component add field_l {
1730	label $inner.field_l -text "Field" -font "Arial 9"
1731	} {
1732	ignore -font
1733	}
1734	itk_component add field {
1735	Rappture::Combobox $inner.field -width 10 -editable 0
1736	}
1737	bind $inner.field <<Value>> \
1738	[itcl::code $this AdjustSetting -field]
1739
1740	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1741	itk_component add colormap {
1742	Rappture::Combobox $inner.colormap -width 10 -editable 0
1743	}
1744	$inner.colormap choices insert end [GetColormapList]
1745
1746	$itk_component(colormap) value "BCGYR"
1747	bind $inner.colormap <<Value>> \
1748	[itcl::code $this AdjustSetting -colormap]
1749
1750	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1751	itk_component add numcontours {
1752	Rappture::Spinint $inner.numcontours \
1753	-min 0 -max 50 -font "arial 9"
1754	}
1755	$itk_component(numcontours) value $_settings(-numcontours)
1756	bind $itk_component(numcontours) <<Value>> \
1757	[itcl::code $this AdjustSetting -numcontours]
1758
1759	blt::table $inner \
1760	0,0 $inner.field_l -anchor w -pady 2 \
1761	0,1 $inner.field -anchor w -pady 2 -fill x \
1762	1,0 $inner.colormap_l -anchor w -pady 2 \
1763	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1764	2,0 $inner.linecolor_l -anchor w -pady 2 \
1765	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1766	3,0 $inner.background_l -anchor w -pady 2 \
1767	3,1 $inner.background -anchor w -pady 2 -fill x \
1768	4,0 $inner.numcontours_l -anchor w -pady 2 \
1769	4,1 $inner.numcontours -anchor w -pady 2 \
1770	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1771	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1772	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1773	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1774	9,0 $inner.legend -anchor w -pady 2 \
1775	10,0 $inner.opacity_l -anchor w -pady 2 \
1776	10,1 $inner.opacity -fill x -pady 2 -fill x \
1777
1778	blt::table configure $inner r* c* -resize none
1779	blt::table configure $inner r11 c1 -resize expand
1780	}
1781
1782	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1783
1784	set fg [option get $itk_component(hull) font Font]
1785	#set bfg [option get $itk_component(hull) boldFont Font]
1786
1787	set inner [$itk_component(main) insert end \
1788	-title "Axis Settings" \
1789	-icon [Rappture::icon axis2]]
1790	$inner configure -borderwidth 4
1791
1792	checkbutton $inner.visible \
1793	-text "Show Axes" \
1794	-variable [itcl::scope _settings(-axesvisible)] \
1795	-command [itcl::code $this AdjustSetting -axesvisible] \
1796	-font "Arial 9"
1797
1798	checkbutton $inner.labels \
1799	-text "Show Axis Labels" \
1800	-variable [itcl::scope _settings(-axislabelsvisible)] \
1801	-command [itcl::code $this AdjustSetting -axislabelsvisible] \
1802	-font "Arial 9"
1803
1804	checkbutton $inner.gridx \
1805	-text "Show X Grid" \
1806	-variable [itcl::scope _settings(-xgrid)] \
1807	-command [itcl::code $this AdjustSetting -xgrid] \
1808	-font "Arial 9"
1809	checkbutton $inner.gridy \
1810	-text "Show Y Grid" \
1811	-variable [itcl::scope _settings(-ygrid)] \
1812	-command [itcl::code $this AdjustSetting -ygrid] \
1813	-font "Arial 9"
1814	checkbutton $inner.gridz \
1815	-text "Show Z Grid" \
1816	-variable [itcl::scope _settings(-zgrid)] \
1817	-command [itcl::code $this AdjustSetting -zgrid] \
1818	-font "Arial 9"
1819
1820	label $inner.mode_l -text "Mode" -font "Arial 9"
1821
1822	itk_component add axisMode {
1823	Rappture::Combobox $inner.mode -width 10 -editable 0
1824	}
1825	$inner.mode choices insert end \
1826	"static_triad" "static" \
1827	"closest_triad" "closest" \
1828	"furthest_triad" "farthest" \
1829	"outer_edges" "outer"
1830	$itk_component(axisMode) value $_settings(-axismode)
1831	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1832
1833	blt::table $inner \
1834	0,0 $inner.visible -anchor w -cspan 2 \
1835	1,0 $inner.labels -anchor w -cspan 2 \
1836	2,0 $inner.gridx -anchor w -cspan 2 \
1837	3,0 $inner.gridy -anchor w -cspan 2 \
1838	4,0 $inner.gridz -anchor w -cspan 2 \
1839	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1840	6,0 $inner.mode -fill x -cspan 2
1841
1842	blt::table configure $inner r* c* -resize none
1843	blt::table configure $inner r7 c1 -resize expand
1844	}
1845
1846
1847	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1848	set inner [$itk_component(main) insert end \
1849	-title "Camera Settings" \
1850	-icon [Rappture::icon camera]]
1851	$inner configure -borderwidth 4
1852
1853	label $inner.view_l -text "view" -font "Arial 9"
1854	set f [frame $inner.view]
1855	foreach side { front back left right top bottom } {
1856	button $f.$side -image [Rappture::icon view$side] \
1857	-command [itcl::code $this SetOrientation $side]
1858	Rappture::Tooltip::for $f.$side "Change the view to $side"
1859	pack $f.$side -side left
1860	}
1861
1862	blt::table $inner \
1863	0,0 $inner.view_l -anchor e -pady 2 \
1864	0,1 $inner.view -anchor w -pady 2
1865
1866	set labels { qx qy qz qw xpan ypan zoom }
1867	set row 1
1868	foreach tag $labels {
1869	label $inner.${tag}label -text $tag -font "Arial 9"
1870	entry $inner.${tag} -font "Arial 9" -bg white \
1871	-textvariable [itcl::scope _view(-$tag)]
1872	bind $inner.${tag} <KeyPress-Return> \
1873	[itcl::code $this camera set ${tag}]
1874	blt::table $inner \
1875	$row,0 $inner.${tag}label -anchor e -pady 2 \
1876	$row,1 $inner.${tag} -anchor w -pady 2
1877	blt::table configure $inner r$row -resize none
1878	incr row
1879	}
1880	checkbutton $inner.ortho \
1881	-text "Orthographic Projection" \
1882	-variable [itcl::scope _view(-ortho)] \
1883	-command [itcl::code $this AdjustSetting -ortho] \
1884	-font "Arial 9"
1885	blt::table $inner \
1886	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1887	blt::table configure $inner r$row -resize none
1888	incr row
1889
1890	blt::table configure $inner c* r* -resize none
1891	blt::table configure $inner c2 -resize expand
1892	blt::table configure $inner r$row -resize expand
1893	}
1894
1895	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1896
1897	set fg [option get $itk_component(hull) font Font]
1898
1899	set inner [$itk_component(main) insert end \
1900	-title "Cutplane Settings" \
1901	-icon [Rappture::icon cutbutton]]
1902
1903	$inner configure -borderwidth 4
1904
1905	checkbutton $inner.visible \
1906	-text "Cutplanes" \
1907	-variable [itcl::scope _settings(-cutplanesvisible)] \
1908	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
1909	-font "Arial 9"
1910
1911	checkbutton $inner.wireframe \
1912	-text "Wireframe" \
1913	-variable [itcl::scope _settings(-cutplanewireframe)] \
1914	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
1915	-font "Arial 9"
1916
1917	checkbutton $inner.lighting \
1918	-text "Enable Lighting" \
1919	-variable [itcl::scope _settings(-cutplanelighting)] \
1920	-command [itcl::code $this AdjustSetting -cutplanelighting] \
1921	-font "Arial 9"
1922
1923	checkbutton $inner.edges \
1924	-text "Edges" \
1925	-variable [itcl::scope _settings(-cutplaneedges)] \
1926	-command [itcl::code $this AdjustSetting -cutplaneedges] \
1927	-font "Arial 9"
1928
1929	checkbutton $inner.preinterp \
1930	-text "Interpolate Scalars" \
1931	-variable [itcl::scope _settings(-cutplanepreinterp)] \
1932	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
1933	-font "Arial 9"
1934
1935	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1936	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1937	-variable [itcl::scope _widget(-cutplaneopacity)] \
1938	-width 10 \
1939	-showvalue off \
1940	-command [itcl::code $this AdjustSetting -cutplaneopacity]
1941	set _widget(-cutplaneopacity) [expr $_settings(-cutplaneopacity) * 100.0]
1942
1943	# X-value slicer...
1944	itk_component add xbutton {
1945	Rappture::PushButton $inner.xbutton \
1946	-onimage [Rappture::icon x-cutplane-red] \
1947	-offimage [Rappture::icon x-cutplane-red] \
1948	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
1949	-variable [itcl::scope _settings(-xcutplanevisible)] \
1950	}
1951	Rappture::Tooltip::for $itk_component(xbutton) \
1952	"Toggle the X-axis cutplane on/off"
1953	$itk_component(xbutton) select
1954	itk_component add xposition {
1955	::scale $inner.xval -from 100 -to 0 \
1956	-width 10 -orient vertical -showvalue 1 \
1957	-borderwidth 1 -highlightthickness 0 \
1958	-command [itcl::code $this EventuallySetCutplane x] \
1959	-variable [itcl::scope _settings(-xcutplaneposition)] \
1960	-foreground red2 -font "Arial 9 bold"
1961	} {
1962	usual
1963	ignore -borderwidth -highlightthickness -foreground -font -background
1964	}
1965	# Set the default cutplane value before disabling the scale.
1966	$itk_component(xposition) set 50
1967	$itk_component(xposition) configure -state disabled
1968	Rappture::Tooltip::for $itk_component(xposition) \
1969	"@[itcl::code $this Slice tooltip x]"
1970
1971	# Y-value slicer...
1972	itk_component add ybutton {
1973	Rappture::PushButton $inner.ybutton \
1974	-onimage [Rappture::icon y-cutplane-green] \
1975	-offimage [Rappture::icon y-cutplane-green] \
1976	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
1977	-variable [itcl::scope _settings(-ycutplanevisible)] \
1978	}
1979	Rappture::Tooltip::for $itk_component(ybutton) \
1980	"Toggle the Y-axis cutplane on/off"
1981	$itk_component(ybutton) select
1982
1983	itk_component add yposition {
1984	::scale $inner.yval -from 100 -to 0 \
1985	-width 10 -orient vertical -showvalue 1 \
1986	-borderwidth 1 -highlightthickness 0 \
1987	-command [itcl::code $this EventuallySetCutplane y] \
1988	-variable [itcl::scope _settings(-ycutplaneposition)] \
1989	-foreground green3 -font "Arial 9 bold"
1990	} {
1991	usual
1992	ignore -borderwidth -highlightthickness -foreground -font
1993	}
1994	Rappture::Tooltip::for $itk_component(yposition) \
1995	"@[itcl::code $this Slice tooltip y]"
1996	# Set the default cutplane value before disabling the scale.
1997	$itk_component(yposition) set 50
1998	$itk_component(yposition) configure -state disabled
1999
2000	# Z-value slicer...
2001	itk_component add zbutton {
2002	Rappture::PushButton $inner.zbutton \
2003	-onimage [Rappture::icon z-cutplane-blue] \
2004	-offimage [Rappture::icon z-cutplane-blue] \
2005	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2006	-variable [itcl::scope _settings(-zcutplanevisible)] \
2007	} {
2008	usual
2009	ignore -foreground
2010	}
2011	Rappture::Tooltip::for $itk_component(zbutton) \
2012	"Toggle the Z-axis cutplane on/off"
2013	$itk_component(zbutton) select
2014
2015	itk_component add zposition {
2016	::scale $inner.zval -from 100 -to 0 \
2017	-width 10 -orient vertical -showvalue 1 \
2018	-borderwidth 1 -highlightthickness 0 \
2019	-command [itcl::code $this EventuallySetCutplane z] \
2020	-variable [itcl::scope _settings(-zcutplaneposition)] \
2021	-foreground blue3 -font "Arial 9 bold"
2022	} {
2023	usual
2024	ignore -borderwidth -highlightthickness -foreground -font
2025	}
2026	$itk_component(zposition) set 50
2027	$itk_component(zposition) configure -state disabled
2028	Rappture::Tooltip::for $itk_component(zposition) \
2029	"@[itcl::code $this Slice tooltip z]"
2030
2031	blt::table $inner \
2032	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2033	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2034	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2035	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2036	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2037	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2038	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2039	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2040	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2041	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2042	6,1 $inner.xval -fill y -rspan 4 \
2043	6,2 $inner.yval -fill y -rspan 4 \
2044	6,3 $inner.zval -fill y -rspan 4 \
2045
2046
2047	blt::table configure $inner r* c* -resize none
2048	blt::table configure $inner r9 c4 -resize expand
2049	}
2050
2051
2052
2053	#
2054	# camera --
2055	#
2056	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2057	switch -- $option {
2058	"show" {
2059	puts [array get _view]
2060	}
2061	"set" {
2062	set what [lindex $args 0]
2063	set x $_view($what)
2064	set code [catch { string is double $x } result]
2065	if { $code != 0 \|\| !$result } {
2066	return
2067	}
2068	switch -- $what {
2069	"-ortho" {
2070	if {$_view($what)} {
2071	SendCmd "camera mode ortho"
2072	} else {
2073	SendCmd "camera mode persp"
2074	}
2075	}
2076	"-xpan" - "-ypan" {
2077	PanCamera
2078	}
2079	"-qx" - "-qy" - "-qz" - "-qw" {
2080	set q [ViewToQuaternion]
2081	$_arcball quaternion $q
2082	EventuallyRotate $q
2083	}
2084	"-zoom" {
2085	SendCmd "camera zoom $_view(-zoom)"
2086	}
2087	}
2088	}
2089	}
2090	}
2091
2092	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2093	set bytes ""
2094	foreach dataobj [get] {
2095	foreach cname [$dataobj components] {
2096	set tag $dataobj-$cname
2097	set contents [$dataobj vtkdata $cname]
2098	append bytes "$contents\n"
2099	}
2100	}
2101	return [list .vtk $bytes]
2102	}
2103
2104	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2105	if { [image width $_image(download)] > 0 &&
2106	[image height $_image(download)] > 0 } {
2107	set bytes [$_image(download) data -format "jpeg -quality 100"]
2108	set bytes [Rappture::encoding::decode -as b64 $bytes]
2109	return [list .jpg $bytes]
2110	}
2111	return ""
2112	}
2113
2114	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2115	Rappture::Balloon $popup \
2116	-title "[Rappture::filexfer::label downloadWord] as..."
2117	set inner [$popup component inner]
2118	label $inner.summary -text "" -anchor w
2119	radiobutton $inner.vtk_button -text "VTK data file" \
2120	-variable [itcl::scope _downloadPopup(format)] \
2121	-font "Arial 9 " \
2122	-value vtk
2123	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2124	radiobutton $inner.image_button -text "Image File" \
2125	-variable [itcl::scope _downloadPopup(format)] \
2126	-font "Arial 9 " \
2127	-value image
2128	Rappture::Tooltip::for $inner.image_button \
2129	"Save as digital image."
2130
2131	button $inner.ok -text "Save" \
2132	-highlightthickness 0 -pady 2 -padx 3 \
2133	-command $command \
2134	-compound left \
2135	-image [Rappture::icon download]
2136
2137	button $inner.cancel -text "Cancel" \
2138	-highlightthickness 0 -pady 2 -padx 3 \
2139	-command [list $popup deactivate] \
2140	-compound left \
2141	-image [Rappture::icon cancel]
2142
2143	blt::table $inner \
2144	0,0 $inner.summary -cspan 2 \
2145	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2146	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2147	4,1 $inner.cancel -width .9i -fill y \
2148	4,0 $inner.ok -padx 2 -width .9i -fill y
2149	blt::table configure $inner r3 -height 4
2150	blt::table configure $inner r4 -pady 4
2151	raise $inner.image_button
2152	$inner.vtk_button invoke
2153	return $inner
2154	}
2155
2156	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2157	# Parse style string.
2158	set tag $dataobj-$comp
2159	array set style {
2160	-color BCGYR
2161	-cutplanesvisible 0
2162	-edgecolor black
2163	-edges 0
2164	-isosurfaceopacity 0.6
2165	-isosurfacevisible 1
2166	-levels 10
2167	-lighting 1
2168	-linewidth 1.0
2169	-outline 0
2170	-wireframe 0
2171	-xcutplaneposition 50
2172	-xcutplanevisible 1
2173	-ycutplaneposition 50
2174	-ycutplanevisible 1
2175	-zcutplaneposition 50
2176	-zcutplanevisible 1
2177	}
2178	array set style [$dataobj style $comp]
2179	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2180	set style(-isosurfaceopacity) 1.0
2181	}
2182
2183	# This is too complicated. We want to set the colormap, number of
2184	# isolines and opacity for the dataset. They can be the default values,
2185	# the style hints loaded with the dataset, or set by user controls. As
2186	# datasets get loaded, they first use the defaults that are overidden
2187	# by the style hints. If the user changes the global controls, then that
2188	# overrides everything else. I don't know what it means when global
2189	# controls are specified as style hints by each dataset. It complicates
2190	# the code to handle aberrant cases.
2191
2192	if { $_changed(-isosurfaceopacity) } {
2193	set style(-isosurfaceopacity) $_settings(-isosurfaceopacity)
2194	}
2195	if { $_changed(-numcontours) } {
2196	set style(-levels) $_settings(-numcontours)
2197	}
2198	if { $_changed(-colormap) } {
2199	set style(-color) $_settings(-colormap)
2200	}
2201	if { $_currentColormap == "" } {
2202	SetCurrentColormap $style(-color)
2203	$itk_component(colormap) value $style(-color)
2204	}
2205	if { $_contourList(numLevels) != $style(-levels) } {
2206	if { [llength $style(-levels)] > 1 } {
2207	set _contourList(reqValues) [lsort -real $style(-levels)]
2208	} else {
2209	set _settings(-numcontours) $style(-levels)
2210	$itk_component(numcontours) value $style(-levels)
2211	set _contourList(numLevels) $style(-levels)
2212	}
2213	EventuallyChangeContourLevels
2214	}
2215	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
2216	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
2217	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
2218	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
2219	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
2220	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
2221	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
2222	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
2223
2224	SendCmd "cutplane add $tag"
2225	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2226
2227	SendCmd "outline add $tag"
2228	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2229	SendCmd "outline visible $style(-outline) $tag"
2230	set _settings(-outline) $style(-outline)
2231
2232	GenerateContourList
2233	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2234	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2235	SendCmd "contour3d edges $style(-edges) $tag"
2236	set _settings(-isosurfaceedges) $style(-edges)
2237	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2238	SendCmd "contour3d lighting $style(-lighting) $tag"
2239	set _settings(-isosurfacelighting) $style(-lighting)
2240	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2241	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2242	SendCmd "contour3d opacity $style(-isosurfaceopacity) $tag"
2243	set _settings(-isosurfaceopacity) $style(-isosurfaceopacity)
2244	SetCurrentColormap $style(-color)
2245	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2246	set _settings(-isosurfacewireframe) $style(-wireframe)
2247	}
2248
2249	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2250	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2251	return 0
2252	}
2253	return 1
2254	}
2255
2256	#
2257	# EnterLegend --
2258	#
2259	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2260	SetLegendTip $x $y
2261	}
2262
2263	#
2264	# MotionLegend --
2265	#
2266	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2267	Rappture::Tooltip::tooltip cancel
2268	set c $itk_component(view)
2269	set cw [winfo width $c]
2270	set ch [winfo height $c]
2271	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2272	SetLegendTip $x $y
2273	}
2274	}
2275
2276	#
2277	# LeaveLegend --
2278	#
2279	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2280	Rappture::Tooltip::tooltip cancel
2281	.rappturetooltip configure -icon ""
2282	}
2283
2284	#
2285	# SetLegendTip --
2286	#
2287	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2288	set fname $_curFldName
2289	set c $itk_component(view)
2290	set w [winfo width $c]
2291	set h [winfo height $c]
2292
2293	set font "Arial 8"
2294	set lineht [font metrics $font -linespace]
2295
2296	set ih [image height $_image(legend)]
2297	set iy [expr $y - ($lineht + 2)]
2298
2299	if { [string match "component*" $fname] } {
2300	set title ""
2301	} else {
2302	if { [info exists _fields($fname)] } {
2303	foreach { title units } $_fields($fname) break
2304	if { $units != "" } {
2305	set title [format "%s (%s)" $title $units]
2306	}
2307	} else {
2308	set title $fname
2309	}
2310	}
2311	# If there's a legend title, increase the offset by the line height.
2312	if { $title != "" } {
2313	incr iy -$lineht
2314	}
2315	# Make a swatch of the selected color
2316	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2317	return
2318	}
2319	if { ![info exists _image(swatch)] } {
2320	set _image(swatch) [image create photo -width 24 -height 24]
2321	}
2322	set color [eval format "\#%02x%02x%02x" $pixel]
2323	$_image(swatch) put black -to 0 0 23 23
2324	$_image(swatch) put $color -to 1 1 22 22
2325	.rappturetooltip configure -icon $_image(swatch)
2326
2327	# Compute the value of the point
2328	if { [info exists _limits($_curFldName)] } {
2329	foreach { vmin vmax } $_limits($_curFldName) break
2330	set t [expr 1.0 - (double($iy) / double($ih-1))]
2331	set value [expr $t * ($vmax - $vmin) + $vmin]
2332	} else {
2333	set value 0.0
2334	}
2335	set tx [expr $x + 15]
2336	set ty [expr $y - 5]
2337	if { [info exists _isolines($y)] } {
2338	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2339	} else {
2340	Rappture::Tooltip::text $c [format "$title %g" $value]
2341	}
2342	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2343	}
2344
2345
2346	# ----------------------------------------------------------------------
2347	# USAGE: Slice move x\|y\|z <newval>
2348	#
2349	# Called automatically when the user drags the slider to move the
2350	# cut plane that slices 3D data. Gets the current value from the
2351	# slider and moves the cut plane to the appropriate point in the
2352	# data set.
2353	# ----------------------------------------------------------------------
2354	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2355	switch -- $option {
2356	"move" {
2357	set axis [lindex $args 0]
2358	set newval [lindex $args 1]
2359	if {[llength $args] != 2} {
2360	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2361	}
2362	set newpos [expr {0.01*$newval}]
2363	SendCmd "cutplane slice $axis $newpos"
2364	}
2365	"tooltip" {
2366	set axis [lindex $args 0]
2367	set val [$itk_component(${axis}position) get]
2368	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2369	}
2370	default {
2371	error "bad option \"$option\": should be axis, move, or tooltip"
2372	}
2373	}
2374	}
2375
2376	#
2377	# ReceiveLegend --
2378	#
2379	# Invoked automatically whenever the "legend" command comes in from
2380	# the rendering server. Indicates that binary image data with the
2381	# specified <size> will follow.
2382	#
2383	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2384	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2385	set _title $title
2386	regsub {\(mag\)} $title "" _title
2387	if { [IsConnected] } {
2388	set bytes [ReceiveBytes $size]
2389	if { ![info exists _image(legend)] } {
2390	set _image(legend) [image create photo]
2391	}
2392	$_image(legend) configure -data $bytes
2393	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2394	if { [catch {DrawLegend} errs] != 0 } {
2395	global errorInfo
2396	puts stderr "errs=$errs errorInfo=$errorInfo"
2397	}
2398	}
2399	}
2400
2401	#
2402	# DrawLegend --
2403	#
2404	# Draws the legend in the own canvas on the right side of the plot area.
2405	#
2406	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2407	set fname $_curFldName
2408	set c $itk_component(view)
2409	set w [winfo width $c]
2410	set h [winfo height $c]
2411	set font "Arial 8"
2412	set lineht [font metrics $font -linespace]
2413
2414	if { [string match "component*" $fname] } {
2415	set title ""
2416	} else {
2417	if { [info exists _fields($fname)] } {
2418	foreach { title units } $_fields($fname) break
2419	if { $units != "" } {
2420	set title [format "%s (%s)" $title $units]
2421	}
2422	} else {
2423	set title $fname
2424	}
2425	}
2426	set x [expr $w - 2]
2427	if { !$_settings(-legendvisible) } {
2428	$c delete legend
2429	return
2430	}
2431	if { [$c find withtag "legend"] == "" } {
2432	set y 2
2433	# If there's a legend title, create a text item for the title.
2434	$c create text $x $y \
2435	-anchor ne \
2436	-fill $itk_option(-plotforeground) -tags "title legend" \
2437	-font $font
2438	if { $title != "" } {
2439	incr y $lineht
2440	}
2441	$c create text $x $y \
2442	-anchor ne \
2443	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2444	-font $font
2445	incr y $lineht
2446	$c create image $x $y \
2447	-anchor ne \
2448	-image $_image(legend) -tags "colormap legend"
2449	$c create rectangle $x $y 1 1 \
2450	-fill "" -outline "" -tags "sensor legend"
2451	$c create text $x [expr {$h-2}] \
2452	-anchor se \
2453	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2454	-font $font
2455	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2456	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2457	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2458	}
2459	$c delete isoline
2460	set x2 $x
2461	set iw [image width $_image(legend)]
2462	set ih [image height $_image(legend)]
2463	set x1 [expr $x2 - ($iw*12)/10]
2464	set color $_settings(-isolinecolor)
2465	# Draw the isolines on the legend.
2466	array unset _isolines
2467	if { $color != "none" && [info exists _limits($_curFldName)] &&
2468	$_settings(-numcontours) > 0 } {
2469
2470	foreach { vmin vmax } $_limits($_curFldName) break
2471	set range [expr double($vmax - $vmin)]
2472	if { $range <= 0.0 } {
2473	set range 1.0; # Min is greater or equal to max.
2474	}
2475	set tags "isoline legend"
2476	set offset [expr 2 + $lineht]
2477	if { $title != "" } {
2478	incr offset $lineht
2479	}
2480	foreach value $_contourList(values) {
2481	set norm [expr 1.0 - (($value - $vmin) / $range)]
2482	set y1 [expr int(round(($norm * $ih) + $offset))]
2483	for { set off 0 } { $off < 3 } { incr off } {
2484	set _isolines([expr $y1 + $off]) $value
2485	set _isolines([expr $y1 - $off]) $value
2486	}
2487	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2488	}
2489	}
2490
2491	$c bind title <ButtonPress> [itcl::code $this Combo post]
2492	$c bind title <Enter> [itcl::code $this Combo activate]
2493	$c bind title <Leave> [itcl::code $this Combo deactivate]
2494	# Reset the item coordinates according the current size of the plot.
2495	$c itemconfigure title -text $title
2496	if { [info exists _limits($_curFldName)] } {
2497	foreach { vmin vmax } $_limits($_curFldName) break
2498	$c itemconfigure vmin -text [format %g $vmin]
2499	$c itemconfigure vmax -text [format %g $vmax]
2500	}
2501	set y 2
2502	# If there's a legend title, move the title to the correct position
2503	if { $title != "" } {
2504	$c itemconfigure title -text $title
2505	$c coords title $x $y
2506	incr y $lineht
2507	$c raise title
2508	}
2509	$c coords vmax $x $y
2510	incr y $lineht
2511	$c coords colormap $x $y
2512	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2513	$c raise sensor
2514	$c coords vmin $x [expr {$h - 2}]
2515	}
2516
2517	# ----------------------------------------------------------------------
2518	# USAGE: _dropdown post
2519	# USAGE: _dropdown unpost
2520	# USAGE: _dropdown select
2521	#
2522	# Used internally to handle the dropdown list for this combobox. The
2523	# post/unpost options are invoked when the list is posted or unposted
2524	# to manage the relief of the controlling button. The select option
2525	# is invoked whenever there is a selection from the list, to assign
2526	# the value back to the gauge.
2527	# ----------------------------------------------------------------------
2528	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2529	set c $itk_component(view)
2530	switch -- $option {
2531	post {
2532	foreach { x1 y1 x2 y2 } [$c bbox title] break
2533	set cw [winfo width $itk_component(view)]
2534	set mw [winfo reqwidth $itk_component(fieldmenu)]
2535	set x1 [expr $cw - $mw]
2536	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2537	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2538	tk_popup $itk_component(fieldmenu) $x $y
2539	}
2540	activate {
2541	$c itemconfigure title -fill red
2542	}
2543	deactivate {
2544	$c itemconfigure title -fill $itk_option(-plotforeground)
2545	}
2546	invoke {
2547	$itk_component(field) value $_curFldLabel
2548	AdjustSetting -field
2549	}
2550	default {
2551	error "bad option \"$option\": should be post, unpost, select"
2552	}
2553	}
2554	}
2555
2556	#
2557	# SetCurrentColormap --
2558	#
2559	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
2560	# Keep track of the colormaps that we build.
2561	if { ![info exists _colormaps($name)] } {
2562	BuildColormap $name
2563	set _colormaps($name) 1
2564	}
2565	set _currentColormap $name
2566	SendCmd "contour3d colormap $_currentColormap"
2567	SendCmd "cutplane colormap $_currentColormap"
2568	}
2569
2570	#
2571	# BuildColormap --
2572	#
2573	# Build the designated colormap on the server.
2574	#
2575	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
2576	set cmap [ColorsToColormap $name]
2577	if { [llength $cmap] == 0 } {
2578	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2579	}
2580	set wmap "0.0 1.0 1.0 1.0"
2581	SendCmd "colormap add $name { $cmap } { $wmap }"
2582	}
2583
2584	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
2585	array set positions {
2586	front "1 0 0 0"
2587	back "0 0 1 0"
2588	left "0.707107 0 -0.707107 0"
2589	right "0.707107 0 0.707107 0"
2590	top "0.707107 -0.707107 0 0"
2591	bottom "0.707107 0.707107 0 0"
2592	}
2593	foreach name { -qw -qx -qy -qz } value $positions($side) {
2594	set _view($name) $value
2595	}
2596	set q [ViewToQuaternion]
2597	$_arcball quaternion $q
2598	SendCmd "camera orient $q"
2599	SendCmd "camera reset"
2600	set _view(-xpan) 0
2601	set _view(-ypan) 0
2602	set _view(-zoom) 1.0
2603	}
2604
2605	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
2606	if { ![info exists _limits($_curFldName)] } {
2607	puts stderr "no _curFldName"
2608	return ""
2609	}
2610	if { $_contourList(numLevels) < 1 } {
2611	puts stderr "numLevels < 1"
2612	return ""
2613	}
2614	if { [llength $_contourList(reqValues)] > 1 } {
2615	set values $_contourList(reqValues)
2616	} else {
2617	foreach { vmin vmax } $_limits($_curFldName) break
2618	set v [blt::vector create \#auto]
2619	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
2620	$v delete end 0
2621	set values [$v range 0 end]
2622	blt::vector destroy $v
2623	}
2624	set _contourList(values) $values
2625	}

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