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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 4447

Last change on this file since 4447 was 4431, checked in by ldelgass, 10 years ago
Merge trunk fixes
File size: 89.3 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	protected method Connect {}
66	protected method CurrentDatasets {args}
67	protected method Disconnect {}
68	protected method DoResize {}
69	protected method DoRotate {}
70	protected method DoChangeContourLevels {}
71	protected method AdjustSetting {what {value ""}}
72	protected method InitSettings { args }
73	protected method Pan {option x y}
74	protected method Pick {x y}
75	protected method Rebuild {}
76	protected method ReceiveDataset { args }
77	protected method ReceiveImage { args }
78	protected method ReceiveLegend { colormap title vmin vmax size }
79	protected method Rotate {option x y}
80	protected method Zoom {option}
81
82	# The following methods are only used by this class.
83	private method BuildAxisTab {}
84	private method BuildCameraTab {}
85	private method BuildColormap { name }
86	private method BuildCutplaneTab {}
87	private method BuildDownloadPopup { widget command }
88	private method BuildIsosurfaceTab {}
89	private method Combo { option }
90	private method DrawLegend {}
91	private method EnterLegend { x y }
92	private method EventuallyResize { w h }
93	private method EventuallyChangeContourLevels {}
94	private method EventuallyRotate { q }
95	private method EventuallyRequestLegend {}
96	private method EventuallySetCutplane { axis args }
97	private method GetImage { args }
98	private method GetVtkData { args }
99	private method IsValidObject { dataobj }
100	private method LeaveLegend {}
101	private method MotionLegend { x y }
102	private method PanCamera {}
103	private method RequestLegend {}
104	private method SetLegendTip { x y }
105	private method SetObjectStyle { dataobj comp }
106	private method Slice {option args}
107	private method SetCurrentColormap { color }
108	private method SetOrientation { side }
109	private method GenerateContourList {}
110
111	private variable _arcball ""
112
113	private variable _dlist "" ; # list of data objects
114	private variable _obj2datasets
115	private variable _obj2ovride ; # maps dataobj => style override
116	private variable _datasets ; # contains all the dataobj-component
117	; # datasets in the server
118	private variable _colormaps ; # contains all the colormaps
119	; # in the server.
120	# The name of the current colormap used. The colormap is global to all
121	# heightmaps displayed.
122	private variable _currentColormap ""
123	private variable _currentNumContours -1
124
125	private variable _dataset2style ;# maps dataobj-component to transfunc
126
127	private variable _click ; # info used for rotate operations
128	private variable _limits ; # autoscale min/max for all axes
129	private variable _view ; # view params for 3D view
130	private variable _settings
131	private variable _style; # Array of current component styles.
132	private variable _changed
133	private variable _initialStyle; # Array of initial component styles.
134	private variable _reset 1; # indicates if camera needs to be reset
135	# to starting position.
136
137	private variable _first "" ; # This is the topmost dataset.
138	private variable _start 0
139	private variable _title ""
140	private variable _isolines
141	private variable _contourList
142	private variable _currentLimits ""
143	common _downloadPopup; # download options from popup
144	private common _hardcopy
145	private variable _width 0
146	private variable _height 0
147	private variable _resizePending 0
148	private variable _rotatePending 0
149	private variable _cutplanePending 0
150	private variable _legendPending 0
151	private variable _field ""
152	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
153	private variable _fieldNames {}
154	private variable _fields
155	private variable _curFldName ""
156	private variable _curFldLabel ""
157	}
158
159	itk::usual VtkIsosurfaceViewer {
160	keep -background -foreground -cursor -font
161	keep -plotbackground -plotforeground
162	}
163
164	# ----------------------------------------------------------------------
165	# CONSTRUCTOR
166	# ----------------------------------------------------------------------
167	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
168	package require vtk
169	set _serverType "vtkvis"
170
171	# Rebuild event
172	$_dispatcher register !rebuild
173	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
174
175	# Resize event
176	$_dispatcher register !resize
177	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
178
179	# Rotate event
180	$_dispatcher register !rotate
181	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
182
183	# Legend event
184	$_dispatcher register !legend
185	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
186
187	# Contour levels event
188	$_dispatcher register !contours
189	$_dispatcher dispatch $this !contours \
190	"[itcl::code $this DoChangeContourLevels]; list"
191
192	# X-Cutplane event
193	$_dispatcher register !xcutplane
194	$_dispatcher dispatch $this !xcutplane \
195	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
196
197	# Y-Cutplane event
198	$_dispatcher register !ycutplane
199	$_dispatcher dispatch $this !ycutplane \
200	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
201
202	# Z-Cutplane event
203	$_dispatcher register !zcutplane
204	$_dispatcher dispatch $this !zcutplane \
205	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
206
207	#
208	# Populate parser with commands handle incoming requests
209	#
210	$_parser alias image [itcl::code $this ReceiveImage]
211	$_parser alias dataset [itcl::code $this ReceiveDataset]
212	$_parser alias legend [itcl::code $this ReceiveLegend]
213
214	# Initialize the view to some default parameters.
215	array set _view {
216	qw 0.853553
217	qx -0.353553
218	qy 0.353553
219	qz 0.146447
220	zoom 1.0
221	xpan 0
222	ypan 0
223	ortho 0
224	}
225	set _arcball [blt::arcball create 100 100]
226	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
227	$_arcball quaternion $q
228
229	array set _contourList {
230	numLevels 10
231	reqValues ""
232	updatePending 0
233	values ""
234	}
235	array set _settings {
236	-axesvisible 1
237	-axislabelsvisible 1
238	-background black
239	-colormap BCGYR
240	-colormapvisible 1
241	-cutplaneedges 0
242	-cutplanelighting 1
243	-cutplaneopacity 100
244	-cutplanepreinterp 1
245	-cutplanesvisible 0
246	-cutplanewireframe 0
247	-field "Default"
248	-isolinecolor white
249	-isosurfaceedges 0
250	-isosurfacelighting 1
251	-isosurfaceopacity 60
252	-isosurfacevisible 1
253	-isosurfacewireframe 0
254	-legendvisible 1
255	-numcontours 10
256	-outline 0
257	-xcutplaneposition 50
258	-xcutplanevisible 1
259	-xgrid 0
260	-ycutplaneposition 50
261	-ycutplanevisible 1
262	-ygrid 0
263	-zcutplaneposition 50
264	-zcutplanevisible 1
265	-zgrid 0
266	}
267	array set _changed {
268	-isosurfaceopacity 0
269	-colormap 0
270	-numcontours 0
271	}
272
273	itk_component add view {
274	canvas $itk_component(plotarea).view \
275	-highlightthickness 0 -borderwidth 0
276	} {
277	usual
278	ignore -highlightthickness -borderwidth -background
279	}
280
281	itk_component add fieldmenu {
282	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
283	-tearoff 0
284	} {
285	usual
286	ignore -background -foreground -relief -tearoff
287	}
288	set c $itk_component(view)
289	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
290	bind $c <4> [itcl::code $this Zoom in 0.25]
291	bind $c <5> [itcl::code $this Zoom out 0.25]
292	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
293	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
294	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
295	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
296	bind $c <Enter> "focus %W"
297	bind $c <Control-F1> [itcl::code $this ToggleConsole]
298
299	# Fix the scrollregion in case we go off screen
300	$c configure -scrollregion [$c bbox all]
301
302	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
303	set _map(cwidth) -1
304	set _map(cheight) -1
305	set _map(zoom) 1.0
306	set _map(original) ""
307
308	set f [$itk_component(main) component controls]
309	itk_component add reset {
310	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
311	-highlightthickness 0 \
312	-image [Rappture::icon reset-view] \
313	-command [itcl::code $this Zoom reset]
314	} {
315	usual
316	ignore -highlightthickness
317	}
318	pack $itk_component(reset) -side top -padx 2 -pady 2
319	Rappture::Tooltip::for $itk_component(reset) \
320	"Reset the view to the default zoom level"
321
322	itk_component add zoomin {
323	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
324	-highlightthickness 0 \
325	-image [Rappture::icon zoom-in] \
326	-command [itcl::code $this Zoom in]
327	} {
328	usual
329	ignore -highlightthickness
330	}
331	pack $itk_component(zoomin) -side top -padx 2 -pady 2
332	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
333
334	itk_component add zoomout {
335	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
336	-highlightthickness 0 \
337	-image [Rappture::icon zoom-out] \
338	-command [itcl::code $this Zoom out]
339	} {
340	usual
341	ignore -highlightthickness
342	}
343	pack $itk_component(zoomout) -side top -padx 2 -pady 2
344	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
345
346	itk_component add contour {
347	Rappture::PushButton $f.contour \
348	-onimage [Rappture::icon volume-on] \
349	-offimage [Rappture::icon volume-off] \
350	-variable [itcl::scope _settings(-isosurfacevisible)] \
351	-command [itcl::code $this AdjustSetting -isosurfacevisible]
352	}
353	$itk_component(contour) select
354	Rappture::Tooltip::for $itk_component(contour) \
355	"Hide the isosurface"
356	pack $itk_component(contour) -padx 2 -pady 2
357
358	itk_component add cutplane {
359	Rappture::PushButton $f.cutplane \
360	-onimage [Rappture::icon cutbutton] \
361	-offimage [Rappture::icon cutbutton] \
362	-variable [itcl::scope _settings(-cutplanesvisible)] \
363	-command [itcl::code $this AdjustSetting -cutplanesvisible]
364	}
365	Rappture::Tooltip::for $itk_component(cutplane) \
366	"Show the cutplanes"
367	pack $itk_component(cutplane) -padx 2 -pady 2
368
369
370	if { [catch {
371	BuildIsosurfaceTab
372	BuildCutplaneTab
373	BuildAxisTab
374	BuildCameraTab
375	} errs] != 0 } {
376	puts stderr errs=$errs
377	}
378	# Legend
379
380	set _image(legend) [image create photo]
381	itk_component add legend {
382	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
383	} {
384	usual
385	ignore -highlightthickness
386	rename -background -plotbackground plotBackground Background
387	}
388
389	# Hack around the Tk panewindow. The problem is that the requested
390	# size of the 3d view isn't set until an image is retrieved from
391	# the server. So the panewindow uses the tiny size.
392	set w 10000
393	pack forget $itk_component(view)
394	blt::table $itk_component(plotarea) \
395	0,0 $itk_component(view) -fill both -reqwidth $w
396	blt::table configure $itk_component(plotarea) c1 -resize none
397
398	# Bindings for rotation via mouse
399	bind $itk_component(view) <ButtonPress-1> \
400	[itcl::code $this Rotate click %x %y]
401	bind $itk_component(view) <B1-Motion> \
402	[itcl::code $this Rotate drag %x %y]
403	bind $itk_component(view) <ButtonRelease-1> \
404	[itcl::code $this Rotate release %x %y]
405
406	# Bindings for panning via mouse
407	bind $itk_component(view) <ButtonPress-2> \
408	[itcl::code $this Pan click %x %y]
409	bind $itk_component(view) <B2-Motion> \
410	[itcl::code $this Pan drag %x %y]
411	bind $itk_component(view) <ButtonRelease-2> \
412	[itcl::code $this Pan release %x %y]
413
414	#bind $itk_component(view) <ButtonRelease-3> \
415	# [itcl::code $this Pick %x %y]
416
417	# Bindings for panning via keyboard
418	bind $itk_component(view) <KeyPress-Left> \
419	[itcl::code $this Pan set -10 0]
420	bind $itk_component(view) <KeyPress-Right> \
421	[itcl::code $this Pan set 10 0]
422	bind $itk_component(view) <KeyPress-Up> \
423	[itcl::code $this Pan set 0 -10]
424	bind $itk_component(view) <KeyPress-Down> \
425	[itcl::code $this Pan set 0 10]
426	bind $itk_component(view) <Shift-KeyPress-Left> \
427	[itcl::code $this Pan set -2 0]
428	bind $itk_component(view) <Shift-KeyPress-Right> \
429	[itcl::code $this Pan set 2 0]
430	bind $itk_component(view) <Shift-KeyPress-Up> \
431	[itcl::code $this Pan set 0 -2]
432	bind $itk_component(view) <Shift-KeyPress-Down> \
433	[itcl::code $this Pan set 0 2]
434
435	# Bindings for zoom via keyboard
436	bind $itk_component(view) <KeyPress-Prior> \
437	[itcl::code $this Zoom out]
438	bind $itk_component(view) <KeyPress-Next> \
439	[itcl::code $this Zoom in]
440
441	bind $itk_component(view) <Enter> "focus $itk_component(view)"
442
443	if {[string equal "x11" [tk windowingsystem]]} {
444	# Bindings for zoom via mouse
445	bind $itk_component(view) <4> [itcl::code $this Zoom out]
446	bind $itk_component(view) <5> [itcl::code $this Zoom in]
447	}
448
449	set _image(download) [image create photo]
450
451	eval itk_initialize $args
452
453	EnableWaitDialog 500
454	Connect
455	update
456	}
457
458	# ----------------------------------------------------------------------
459	# DESTRUCTOR
460	# ----------------------------------------------------------------------
461	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
462	Disconnect
463	image delete $_image(plot)
464	image delete $_image(download)
465	catch { blt::arcball destroy $_arcball }
466	}
467
468	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
469	if { $_width < 2 } {
470	set _width 500
471	}
472	if { $_height < 2 } {
473	set _height 500
474	}
475	set _start [clock clicks -milliseconds]
476	SendCmd "screen size $_width $_height"
477
478	EventuallyRequestLegend
479	set _resizePending 0
480	}
481
482	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
483	GenerateContourList
484	SendCmd [list contour3d contourlist $_contourList(values)]
485	#SendCmd [list camera reset]
486	DrawLegend
487	set _contourList(updatePending) 0
488	}
489
490	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
491	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
492	SendCmd "camera orient $q"
493	set _rotatePending 0
494	}
495
496	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
497	if { !$_legendPending } {
498	set _legendPending 1
499	$_dispatcher event -idle !legend
500	}
501	}
502
503	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
504	set _width $w
505	set _height $h
506	$_arcball resize $w $h
507	if { !$_resizePending } {
508	set _resizePending 1
509	$_dispatcher event -after 400 !resize
510	}
511	}
512
513	set rotate_delay 100
514
515	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
516	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
517	if { !$_rotatePending } {
518	set _rotatePending 1
519	global rotate_delay
520	$_dispatcher event -after $rotate_delay !rotate
521	}
522	}
523
524	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
525	if { !$_cutplanePending } {
526	set _cutplanePending 1
527	$_dispatcher event -after 100 !${axis}cutplane
528	}
529	}
530
531	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
532	set n $_contourList(numLevels)
533	set _contourList(values) ""
534	if { !$_contourList(updatePending) } {
535	set _contourList(updatePending) 1
536	global rotate_delay
537	$_dispatcher event -after $rotate_delay !contours
538	}
539	}
540
541	# ----------------------------------------------------------------------
542	# USAGE: add <dataobj> ?<settings>?
543	#
544	# Clients use this to add a data object to the plot. The optional
545	# <settings> are used to configure the plot. Allowed settings are
546	# -color, -brightness, -width, -linestyle, and -raise.
547	# ----------------------------------------------------------------------
548	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
549	if { ![$dataobj isvalid] } {
550	return; # Object doesn't contain valid data.
551	}
552	array set params {
553	-color auto
554	-width 1
555	-linestyle solid
556	-brightness 0
557	-raise 0
558	-description ""
559	-param ""
560	-type ""
561	}
562	array set params $settings
563	set params(-description) ""
564	set params(-param) ""
565	array set params $settings
566
567	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
568	# can't handle -autocolors yet
569	set params(-color) black
570	}
571	set pos [lsearch -exact $_dlist $dataobj]
572	if {$pos < 0} {
573	lappend _dlist $dataobj
574	}
575	set _obj2ovride($dataobj-color) $params(-color)
576	set _obj2ovride($dataobj-width) $params(-width)
577	set _obj2ovride($dataobj-raise) $params(-raise)
578	$_dispatcher event -idle !rebuild
579	}
580
581
582	# ----------------------------------------------------------------------
583	# USAGE: delete ?<dataobj1> <dataobj2> ...?
584	#
585	# Clients use this to delete a dataobj from the plot. If no dataobjs
586	# are specified, then all dataobjs are deleted. No data objects are
587	# deleted. They are only removed from the display list.
588	#
589	# ----------------------------------------------------------------------
590	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
591	if { [llength $args] == 0} {
592	set args $_dlist
593	}
594	# Delete all specified dataobjs
595	set changed 0
596	foreach dataobj $args {
597	set pos [lsearch -exact $_dlist $dataobj]
598	if { $pos < 0 } {
599	continue; # Don't know anything about it.
600	}
601	# Remove it from the dataobj list.
602	set _dlist [lreplace $_dlist $pos $pos]
603	array unset _obj2ovride $dataobj-*
604	array unset _settings $dataobj-*
605	set changed 1
606	}
607	# If anything changed, then rebuild the plot
608	if { $changed } {
609	$_dispatcher event -idle !rebuild
610	}
611	}
612
613	# ----------------------------------------------------------------------
614	# USAGE: get ?-objects?
615	# USAGE: get ?-visible?
616	# USAGE: get ?-image view?
617	#
618	# Clients use this to query the list of objects being plotted, in
619	# order from bottom to top of this result. The optional "-image"
620	# flag can also request the internal images being shown.
621	# ----------------------------------------------------------------------
622	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
623	if {[llength $args] == 0} {
624	set args "-objects"
625	}
626
627	set op [lindex $args 0]
628	switch -- $op {
629	"-objects" {
630	# put the dataobj list in order according to -raise options
631	set dlist {}
632	foreach dataobj $_dlist {
633	if { ![IsValidObject $dataobj] } {
634	continue
635	}
636	if {[info exists _obj2ovride($dataobj-raise)] &&
637	$_obj2ovride($dataobj-raise)} {
638	set dlist [linsert $dlist 0 $dataobj]
639	} else {
640	lappend dlist $dataobj
641	}
642	}
643	return $dlist
644	}
645	"-visible" {
646	set dlist {}
647	foreach dataobj $_dlist {
648	if { ![IsValidObject $dataobj] } {
649	continue
650	}
651	if { ![info exists _obj2ovride($dataobj-raise)] } {
652	# No setting indicates that the object isn't visible.
653	continue
654	}
655	# Otherwise use the -raise parameter to put the object to
656	# the front of the list.
657	if { $_obj2ovride($dataobj-raise) } {
658	set dlist [linsert $dlist 0 $dataobj]
659	} else {
660	lappend dlist $dataobj
661	}
662	}
663	return $dlist
664	}
665	-image {
666	if {[llength $args] != 2} {
667	error "wrong # args: should be \"get -image view\""
668	}
669	switch -- [lindex $args end] {
670	view {
671	return $_image(plot)
672	}
673	default {
674	error "bad image name \"[lindex $args end]\": should be view"
675	}
676	}
677	}
678	default {
679	error "bad option \"$op\": should be -objects or -image"
680	}
681	}
682	}
683
684	# ----------------------------------------------------------------------
685	# USAGE: scale ?<data1> <data2> ...?
686	#
687	# Sets the default limits for the overall plot according to the
688	# limits of the data for all of the given <data> objects. This
689	# accounts for all objects--even those not showing on the screen.
690	# Because of this, the limits are appropriate for all objects as
691	# the user scans through data in the ResultSet viewer.
692	# ----------------------------------------------------------------------
693	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
694	foreach dataobj $args {
695	if { ![$dataobj isvalid] } {
696	continue; # Object doesn't contain valid data.
697	}
698	foreach axis { x y z } {
699	set lim [$dataobj limits $axis]
700	if { ![info exists _limits($axis)] } {
701	set _limits($axis) $lim
702	continue
703	}
704	foreach {min max} $lim break
705	foreach {amin amax} $_limits($axis) break
706	if { $amin > $min } {
707	set amin $min
708	}
709	if { $amax < $max } {
710	set amax $max
711	}
712	set _limits($axis) [list $amin $amax]
713	}
714	foreach { fname lim } [$dataobj fieldlimits] {
715	if { ![info exists _limits($fname)] } {
716	set _limits($fname) $lim
717	continue
718	}
719	foreach {min max} $lim break
720	foreach {fmin fmax} $_limits($fname) break
721	if { $fmin > $min } {
722	set fmin $min
723	}
724	if { $fmax < $max } {
725	set fmax $max
726	}
727	set _limits($fname) [list $fmin $fmax]
728	}
729	}
730	}
731
732	# ----------------------------------------------------------------------
733	# USAGE: download coming
734	# USAGE: download controls <downloadCommand>
735	# USAGE: download now
736	#
737	# Clients use this method to create a downloadable representation
738	# of the plot. Returns a list of the form {ext string}, where
739	# "ext" is the file extension (indicating the type of data) and
740	# "string" is the data itself.
741	# ----------------------------------------------------------------------
742	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
743	switch $option {
744	coming {
745	if {[catch {
746	blt::winop snap $itk_component(plotarea) $_image(download)
747	}]} {
748	$_image(download) configure -width 1 -height 1
749	$_image(download) put #000000
750	}
751	}
752	controls {
753	set popup .vtkviewerdownload
754	if { ![winfo exists .vtkviewerdownload] } {
755	set inner [BuildDownloadPopup $popup [lindex $args 0]]
756	} else {
757	set inner [$popup component inner]
758	}
759	set _downloadPopup(image_controls) $inner.image_frame
760	set num [llength [get]]
761	set num [expr {($num == 1) ? "1 result" : "$num results"}]
762	set word [Rappture::filexfer::label downloadWord]
763	$inner.summary configure -text "$word $num in the following format:"
764	update idletasks ;# Fix initial sizes
765	return $popup
766	}
767	now {
768	set popup .vtkviewerdownload
769	if {[winfo exists .vtkviewerdownload]} {
770	$popup deactivate
771	}
772	switch -- $_downloadPopup(format) {
773	"image" {
774	return [$this GetImage [lindex $args 0]]
775	}
776	"vtk" {
777	return [$this GetVtkData [lindex $args 0]]
778	}
779	}
780	return ""
781	}
782	default {
783	error "bad option \"$option\": should be coming, controls, now"
784	}
785	}
786	}
787
788	# ----------------------------------------------------------------------
789	# USAGE: Connect ?<host:port>,<host:port>...?
790	#
791	# Clients use this method to establish a connection to a new
792	# server, or to reestablish a connection to the previous server.
793	# Any existing connection is automatically closed.
794	# ----------------------------------------------------------------------
795	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
796	set _hosts [GetServerList "vtkvis"]
797	if { "" == $_hosts } {
798	return 0
799	}
800	set result [VisViewer::Connect $_hosts]
801	if { $result } {
802	if { $_reportClientInfo } {
803	# Tell the server the viewer, hub, user and session.
804	# Do this immediately on connect before buffering any commands
805	global env
806
807	set info {}
808	set user "???"
809	if { [info exists env(USER)] } {
810	set user $env(USER)
811	}
812	set session "???"
813	if { [info exists env(SESSION)] } {
814	set session $env(SESSION)
815	}
816	lappend info "hub" [exec hostname]
817	lappend info "client" "vtkisosurfaceviewer"
818	lappend info "user" $user
819	lappend info "session" $session
820	SendCmd "clientinfo [list $info]"
821	}
822
823	set w [winfo width $itk_component(view)]
824	set h [winfo height $itk_component(view)]
825	EventuallyResize $w $h
826	}
827	return $result
828	}
829
830	#
831	# isconnected --
832	#
833	# Indicates if we are currently connected to the visualization server.
834	#
835	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
836	return [VisViewer::IsConnected]
837	}
838
839	#
840	# disconnect --
841	#
842	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
843	Disconnect
844	set _reset 1
845	}
846
847	#
848	# Disconnect --
849	#
850	# Clients use this method to disconnect from the current rendering
851	# server.
852	#
853	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
854	VisViewer::Disconnect
855
856	$_dispatcher cancel !rebuild
857	$_dispatcher cancel !resize
858	$_dispatcher cancel !rotate
859	$_dispatcher cancel !xcutplane
860	$_dispatcher cancel !ycutplane
861	$_dispatcher cancel !zcutplane
862	$_dispatcher cancel !legend
863	# disconnected -- no more data sitting on server
864	set _outbuf ""
865	array unset _datasets
866	array unset _data
867	array unset _colormaps
868	array unset _seeds
869	array unset _dataset2style
870	array unset _obj2datasets
871	}
872
873	# ----------------------------------------------------------------------
874	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
875	#
876	# Invoked automatically whenever the "image" command comes in from
877	# the rendering server. Indicates that binary image data with the
878	# specified <size> will follow.
879	# ----------------------------------------------------------------------
880	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
881	array set info {
882	-token "???"
883	-bytes 0
884	-type image
885	}
886	array set info $args
887	set bytes [ReceiveBytes $info(-bytes)]
888	if { $info(-type) == "image" } {
889	if 0 {
890	set f [open "last.ppm" "w"]
891	puts $f $bytes
892	close $f
893	}
894	$_image(plot) configure -data $bytes
895	#set time [clock seconds]
896	#set date [clock format $time]
897	#set w [image width $_image(plot)]
898	#set h [image height $_image(plot)]
899	#puts stderr "$date: received image ${w}x${h} image"
900	if { $_start > 0 } {
901	set finish [clock clicks -milliseconds]
902	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
903	set _start 0
904	}
905	} elseif { $info(type) == "print" } {
906	set tag $this-print-$info(-token)
907	set _hardcopy($tag) $bytes
908	}
909	}
910
911	#
912	# ReceiveDataset --
913	#
914	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
915	if { ![isconnected] } {
916	return
917	}
918	set option [lindex $args 0]
919	switch -- $option {
920	"scalar" {
921	set option [lindex $args 1]
922	switch -- $option {
923	"world" {
924	foreach { x y z value tag } [lrange $args 2 end] break
925	}
926	"pixel" {
927	foreach { x y value tag } [lrange $args 2 end] break
928	}
929	}
930	}
931	"vector" {
932	set option [lindex $args 1]
933	switch -- $option {
934	"world" {
935	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
936	}
937	"pixel" {
938	foreach { x y vx vy vz tag } [lrange $args 2 end] break
939	}
940	}
941	}
942	"names" {
943	foreach { name } [lindex $args 1] {
944	#puts stderr "Dataset: $name"
945	}
946	}
947	default {
948	error "unknown dataset option \"$option\" from server"
949	}
950	}
951	}
952
953	# ----------------------------------------------------------------------
954	# USAGE: Rebuild
955	#
956	# Called automatically whenever something changes that affects the
957	# data in the widget. Clears any existing data and rebuilds the
958	# widget to display new data.
959	# ----------------------------------------------------------------------
960	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
961	set w [winfo width $itk_component(view)]
962	set h [winfo height $itk_component(view)]
963	if { $w < 2 \|\| $h < 2 } {
964	$_dispatcher event -idle !rebuild
965	return
966	}
967
968	# Turn on buffering of commands to the server. We don't want to
969	# be preempted by a server disconnect/reconnect (which automatically
970	# generates a new call to Rebuild).
971	StartBufferingCommands
972
973	if { $_reset } {
974	set _width $w
975	set _height $h
976	$_arcball resize $w $h
977	DoResize
978	#
979	# Reset the camera and other view parameters
980	#
981	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
982	$_arcball quaternion $q
983	if {$_view(ortho)} {
984	SendCmd "camera mode ortho"
985	} else {
986	SendCmd "camera mode persp"
987	}
988	DoRotate
989	PanCamera
990	set _first ""
991	InitSettings -xgrid -ygrid -zgrid -axismode \
992	-axesvisible -axislabelsvisible
993	foreach axis { x y z } {
994	SendCmd "axis lformat $axis %g"
995	}
996	StopBufferingCommands
997	SendCmd "imgflush"
998	StartBufferingCommands
999	}
1000	set _first ""
1001	SendCmd "dataset visible 0"
1002	foreach dataobj [get -objects] {
1003	if { [info exists _obj2ovride($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	# May be a space in the axis label.
1104	SendCmd [list axis name $axis $label]
1105	}
1106	if { [array size _fields] < 2 } {
1107	blt::table forget $itk_component(field) $itk_component(field_l)
1108	}
1109	set _reset 0
1110	}
1111	# Redraw the legend even if we're using the same colormap. The position
1112	# of the isolines may have changed because the range of data changed.
1113	DrawLegend
1114
1115	# Actually write the commands to the server socket. If it fails, we don't
1116	# care. We're finished here.
1117	blt::busy hold $itk_component(hull)
1118	StopBufferingCommands; # Turn off buffering and send commands.
1119	blt::busy release $itk_component(hull)
1120	}
1121
1122	# ----------------------------------------------------------------------
1123	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1124	#
1125	# Returns a list of server IDs for the current datasets being displayed. This
1126	# is normally a single ID, but it might be a list of IDs if the current data
1127	# object has multiple components.
1128	# ----------------------------------------------------------------------
1129	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1130	set flag [lindex $args 0]
1131	switch -- $flag {
1132	"-all" {
1133	if { [llength $args] > 1 } {
1134	error "CurrentDatasets: can't specify dataobj after \"-all\""
1135	}
1136	set dlist [get -objects]
1137	}
1138	"-visible" {
1139	if { [llength $args] > 1 } {
1140	set dlist {}
1141	set args [lrange $args 1 end]
1142	foreach dataobj $args {
1143	if { [info exists _obj2ovride($dataobj-raise)] } {
1144	lappend dlist $dataobj
1145	}
1146	}
1147	} else {
1148	set dlist [get -visible]
1149	}
1150	}
1151	default {
1152	set dlist $args
1153	}
1154	}
1155	set rlist ""
1156	foreach dataobj $dlist {
1157	foreach comp [$dataobj components] {
1158	set tag $dataobj-$comp
1159	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1160	lappend rlist $tag
1161	}
1162	}
1163	}
1164	return $rlist
1165	}
1166
1167	# ----------------------------------------------------------------------
1168	# USAGE: Zoom in
1169	# USAGE: Zoom out
1170	# USAGE: Zoom reset
1171	#
1172	# Called automatically when the user clicks on one of the zoom
1173	# controls for this widget. Changes the zoom for the current view.
1174	# ----------------------------------------------------------------------
1175	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1176	switch -- $option {
1177	"in" {
1178	set _view(zoom) [expr {$_view(zoom)*1.25}]
1179	SendCmd "camera zoom $_view(zoom)"
1180	}
1181	"out" {
1182	set _view(zoom) [expr {$_view(zoom)*0.8}]
1183	SendCmd "camera zoom $_view(zoom)"
1184	}
1185	"reset" {
1186	array set _view {
1187	qw 0.853553
1188	qx -0.353553
1189	qy 0.353553
1190	qz 0.146447
1191	zoom 1.0
1192	xpan 0
1193	ypan 0
1194	}
1195	if { $_first != "" } {
1196	set location [$_first hints camera]
1197	if { $location != "" } {
1198	array set _view $location
1199	}
1200	}
1201	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1202	$_arcball quaternion $q
1203	DoRotate
1204	SendCmd "camera reset"
1205	}
1206	}
1207	}
1208
1209	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1210	set x $_view(xpan)
1211	set y $_view(ypan)
1212	SendCmd "camera pan $x $y"
1213	}
1214
1215
1216	# ----------------------------------------------------------------------
1217	# USAGE: Rotate click <x> <y>
1218	# USAGE: Rotate drag <x> <y>
1219	# USAGE: Rotate release <x> <y>
1220	#
1221	# Called automatically when the user clicks/drags/releases in the
1222	# plot area. Moves the plot according to the user's actions.
1223	# ----------------------------------------------------------------------
1224	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1225	switch -- $option {
1226	"click" {
1227	$itk_component(view) configure -cursor fleur
1228	set _click(x) $x
1229	set _click(y) $y
1230	}
1231	"drag" {
1232	if {[array size _click] == 0} {
1233	Rotate click $x $y
1234	} else {
1235	set w [winfo width $itk_component(view)]
1236	set h [winfo height $itk_component(view)]
1237	if {$w <= 0 \|\| $h <= 0} {
1238	return
1239	}
1240
1241	if {[catch {
1242	# this fails sometimes for no apparent reason
1243	set dx [expr {double($x-$_click(x))/$w}]
1244	set dy [expr {double($y-$_click(y))/$h}]
1245	}]} {
1246	return
1247	}
1248	if { $dx == 0 && $dy == 0 } {
1249	return
1250	}
1251	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1252	EventuallyRotate $q
1253	set _click(x) $x
1254	set _click(y) $y
1255	}
1256	}
1257	"release" {
1258	Rotate drag $x $y
1259	$itk_component(view) configure -cursor ""
1260	catch {unset _click}
1261	}
1262	default {
1263	error "bad option \"$option\": should be click, drag, release"
1264	}
1265	}
1266	}
1267
1268	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1269	foreach tag [CurrentDatasets -visible] {
1270	SendCmdNoSplash "dataset getscalar pixel $x $y $tag"
1271	}
1272	}
1273
1274	# ----------------------------------------------------------------------
1275	# USAGE: $this Pan click x y
1276	# $this Pan drag x y
1277	# $this Pan release x y
1278	#
1279	# Called automatically when the user clicks on one of the zoom
1280	# controls for this widget. Changes the zoom for the current view.
1281	# ----------------------------------------------------------------------
1282	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1283	switch -- $option {
1284	"set" {
1285	set w [winfo width $itk_component(view)]
1286	set h [winfo height $itk_component(view)]
1287	set x [expr $x / double($w)]
1288	set y [expr $y / double($h)]
1289	set _view(xpan) [expr $_view(xpan) + $x]
1290	set _view(ypan) [expr $_view(ypan) + $y]
1291	PanCamera
1292	return
1293	}
1294	"click" {
1295	set _click(x) $x
1296	set _click(y) $y
1297	$itk_component(view) configure -cursor hand1
1298	}
1299	"drag" {
1300	if { ![info exists _click(x)] } {
1301	set _click(x) $x
1302	}
1303	if { ![info exists _click(y)] } {
1304	set _click(y) $y
1305	}
1306	set w [winfo width $itk_component(view)]
1307	set h [winfo height $itk_component(view)]
1308	set dx [expr ($_click(x) - $x)/double($w)]
1309	set dy [expr ($_click(y) - $y)/double($h)]
1310	set _click(x) $x
1311	set _click(y) $y
1312	set _view(xpan) [expr $_view(xpan) - $dx]
1313	set _view(ypan) [expr $_view(ypan) - $dy]
1314	PanCamera
1315	}
1316	"release" {
1317	Pan drag $x $y
1318	$itk_component(view) configure -cursor ""
1319	}
1320	default {
1321	error "unknown option \"$option\": should set, click, drag, or release"
1322	}
1323	}
1324	}
1325
1326	# ----------------------------------------------------------------------
1327	# USAGE: InitSettings <what> ?<value>?
1328	#
1329	# Used internally to update rendering settings whenever parameters
1330	# change in the popup settings panel. Sends the new settings off
1331	# to the back end.
1332	# ----------------------------------------------------------------------
1333	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1334	foreach spec $args {
1335	if { [info exists _settings($_first-$spec)] } {
1336	# Reset global setting with dataobj specific setting
1337	set _settings($spec) $_settings($_first-$spec)
1338	}
1339	AdjustSetting $spec
1340	}
1341	}
1342
1343	#
1344	# AdjustSetting --
1345	#
1346	# Changes/updates a specific setting in the widget. There are
1347	# usually user-setable option. Commands are sent to the render
1348	# server.
1349	#
1350	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1351	if { ![isconnected] } {
1352	return
1353	}
1354	switch -- $what {
1355	"-background" {
1356	set bgcolor [$itk_component(background) value]
1357	array set fgcolors {
1358	"black" "white"
1359	"white" "black"
1360	"grey" "black"
1361	}
1362	configure -plotbackground $bgcolor \
1363	-plotforeground $fgcolors($bgcolor)
1364	$itk_component(view) delete "legend"
1365	DrawLegend
1366	}
1367	"-axesvisible" {
1368	set bool $_settings(-axesvisible)
1369	SendCmd "axis visible all $bool"
1370	}
1371	"-axislabelsvisible" {
1372	set bool $_settings(-axislabelsvisible)
1373	SendCmd "axis labels all $bool"
1374	}
1375	"-xgrid" - "-ygrid" - "-zgrid" {
1376	set axis [string tolower [string range $what 1 1]]
1377	set bool $_settings($what)
1378	SendCmd "axis grid $axis $bool"
1379	}
1380	"-axismode" {
1381	set mode [$itk_component(axisMode) value]
1382	set mode [$itk_component(axisMode) translate $mode]
1383	set _settings($what) $mode
1384	SendCmd "axis flymode $mode"
1385	}
1386	"-cutplaneedges" {
1387	set bool $_settings($what)
1388	SendCmd "cutplane edges $bool"
1389	}
1390	"-cutplanesvisible" {
1391	set bool $_settings($what)
1392	SendCmd "cutplane visible 0"
1393	if { $bool } {
1394	foreach tag [CurrentDatasets -visible] {
1395	SendCmd "cutplane visible $bool $tag"
1396	}
1397	}
1398	if { $bool } {
1399	Rappture::Tooltip::for $itk_component(cutplane) \
1400	"Hide the cutplanes"
1401	} else {
1402	Rappture::Tooltip::for $itk_component(cutplane) \
1403	"Show the cutplanes"
1404	}
1405	}
1406	"-cutplanewireframe" {
1407	set bool $_settings($what)
1408	SendCmd "cutplane wireframe $bool"
1409	}
1410	"-cutplanelighting" {
1411	set bool $_settings($what)
1412	SendCmd "cutplane lighting $bool"
1413	}
1414	"-cutplaneopacity" {
1415	set val $_settings($what)
1416	set sval [expr { 0.01 * double($val) }]
1417	SendCmd "cutplane opacity $sval"
1418	}
1419	"-cutplanepreinterp" {
1420	set bool $_settings($what)
1421	SendCmd "cutplane preinterp $bool"
1422	}
1423	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1424	set axis [string tolower [string range $what 1 1]]
1425	set bool $_settings($what)
1426	if { $bool } {
1427	$itk_component(${axis}position) configure -state normal \
1428	-troughcolor white
1429	} else {
1430	$itk_component(${axis}position) configure -state disabled \
1431	-troughcolor grey82
1432	}
1433	SendCmd "cutplane axis $axis $bool"
1434	}
1435	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1436	set axis [string tolower [string range $what 1 1]]
1437	set pos [expr $_settings($what) * 0.01]
1438	SendCmd "cutplane slice ${axis} ${pos}"
1439	set _cutplanePending 0
1440	}
1441	"-colormap" {
1442	set _changed(-colormap) 1
1443	StartBufferingCommands
1444	set color [$itk_component(colormap) value]
1445	set _settings(-colormap) $color
1446	if { $color == "none" } {
1447	if { $_settings(-colormapvisible) } {
1448	SendCmd "contour3d colormode constant {}"
1449	set _settings(-colormapvisible) 0
1450	}
1451	} else {
1452	if { !$_settings(-colormapvisible) } {
1453	SendCmd "contour3d colormode $_colorMode $_curFldName"
1454	set _settings(-colormapvisible) 1
1455	}
1456	SetCurrentColormap $color
1457	}
1458	StopBufferingCommands
1459	EventuallyRequestLegend
1460	}
1461	"-numcontours" {
1462	set _settings($what) [$itk_component(numcontours) value]
1463	if { $_contourList(numLevels) != $_settings($what) } {
1464	set _contourList(numLevels) $_settings($what)
1465	EventuallyChangeContourLevels
1466	}
1467	}
1468	"-isosurfacewireframe" {
1469	set bool $_settings($what)
1470	SendCmd "contour3d wireframe $bool"
1471	}
1472	"-isosurfacevisible" {
1473	set bool $_settings($what)
1474	SendCmd "contour3d visible 0"
1475	if { $bool } {
1476	foreach tag [CurrentDatasets -visible] {
1477	SendCmd "contour3d visible $bool $tag"
1478	}
1479	}
1480	if { $bool } {
1481	Rappture::Tooltip::for $itk_component(contour) \
1482	"Hide the isosurface"
1483	} else {
1484	Rappture::Tooltip::for $itk_component(contour) \
1485	"Show the isosurface"
1486	}
1487	}
1488	"-isosurfacelighting" {
1489	set bool $_settings($what)
1490	SendCmd "contour3d lighting $bool"
1491	}
1492	"-isosurfaceedges" {
1493	set bool $_settings($what)
1494	SendCmd "contour3d edges $bool"
1495	}
1496	"-outline" {
1497	set bool $_settings($what)
1498	SendCmd "outline visible 0"
1499	if { $bool } {
1500	foreach tag [CurrentDatasets -visible] {
1501	SendCmd "outline visible $bool $tag"
1502	}
1503	}
1504	}
1505	"-isolinecolor" {
1506	set color [$itk_component(isolineColor) value]
1507	set _settings($what) $color
1508	DrawLegend
1509	}
1510	"-isosurfaceopacity" {
1511	set val $_settings($what)
1512	set sval [expr { 0.01 * double($val) }]
1513	SendCmd "contour3d opacity $sval"
1514	}
1515	"-field" {
1516	set label [$itk_component(field) value]
1517	set fname [$itk_component(field) translate $label]
1518	set _settings($what) $fname
1519	if { [info exists _fields($fname)] } {
1520	foreach { label units components } $_fields($fname) break
1521	if { $components > 1 } {
1522	set _colorMode vmag
1523	} else {
1524	set _colorMode scalar
1525	}
1526	set _curFldName $fname
1527	set _curFldLabel $label
1528	} else {
1529	puts stderr "unknown field \"$fname\""
1530	return
1531	}
1532	SendCmd "dataset scalar $_curFldName"
1533	if { ![info exists _limits($_curFldName)] } {
1534	SendCmd "dataset maprange all"
1535	puts stderr "dataset maprange all"
1536	} else {
1537	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1538	}
1539	SendCmd "cutplane colormode $_colorMode $_curFldName"
1540	SendCmd "contour3d colormode $_colorMode $_curFldName"
1541	SendCmd "camera reset"
1542	DrawLegend
1543	}
1544	"-legendvisible" {
1545	if { !$_settings($what) } {
1546	$itk_component(view) delete legend
1547	}
1548	DrawLegend
1549	}
1550	default {
1551	error "don't know how to fix $what"
1552	}
1553	}
1554	}
1555
1556
1557	#
1558	# RequestLegend --
1559	#
1560	# Request a new legend from the server. The size of the legend
1561	# is determined from the height of the canvas.
1562	#
1563	# This should be called when
1564	# 1. A new current colormap is set.
1565	# 2. Window is resized.
1566	# 3. The limits of the data have changed. (Just need a redraw).
1567	# 4. Number of isolines have changed. (Just need a redraw).
1568	# 5. Legend becomes visible (Just need a redraw).
1569	#
1570	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1571	set _legendPending 0
1572	if { ![info exists _fields($_curFldName)] } {
1573	return
1574	}
1575	set fname $_curFldName
1576	set font "Arial 8"
1577	set lineht [font metrics $font -linespace]
1578	set w 12
1579	set h [expr {$_height - 2 * ($lineht + 2)}]
1580	if { $h < 1 } {
1581	return
1582	}
1583	if { [string match "component*" $fname] } {
1584	set title ""
1585	} else {
1586	if { [info exists _fields($fname)] } {
1587	foreach { title units } $_fields($fname) break
1588	if { $units != "" } {
1589	set title [format "%s (%s)" $title $units]
1590	}
1591	} else {
1592	set title $fname
1593	}
1594	}
1595	# If there's a title too, subtract one more line
1596	if { $title != "" } {
1597	incr h -$lineht
1598	}
1599	# Set the legend on the first heightmap dataset.
1600	if { $_currentColormap != "" } {
1601	set cmap $_currentColormap
1602	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1603	}
1604	}
1605
1606	# ----------------------------------------------------------------------
1607	# CONFIGURATION OPTION: -plotbackground
1608	# ----------------------------------------------------------------------
1609	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1610	if { [isconnected] } {
1611	set rgb [Color2RGB $itk_option(-plotbackground)]
1612	SendCmd "screen bgcolor $rgb"
1613	}
1614	}
1615
1616	# ----------------------------------------------------------------------
1617	# CONFIGURATION OPTION: -plotforeground
1618	# ----------------------------------------------------------------------
1619	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1620	if { [isconnected] } {
1621	set rgb [Color2RGB $itk_option(-plotforeground)]
1622	SendCmd "axis color all $rgb"
1623	SendCmd "outline color $rgb"
1624	SendCmd "cutplane color $rgb"
1625	}
1626	}
1627
1628	itcl::body Rappture::VtkIsosurfaceViewer::limits { dataobj } {
1629	foreach { limits(xmin) limits(xmax) } [$dataobj limits x] break
1630	foreach { limits(ymin) limits(ymax) } [$dataobj limits y] break
1631	foreach { limits(zmin) limits(zmax) } [$dataobj limits z] break
1632	foreach { limits(vmin) limits(vmax) } [$dataobj limits v] break
1633	return [array get limits]
1634	}
1635
1636	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1637
1638	set fg [option get $itk_component(hull) font Font]
1639	#set bfg [option get $itk_component(hull) boldFont Font]
1640
1641	set inner [$itk_component(main) insert end \
1642	-title "Isosurface Settings" \
1643	-icon [Rappture::icon volume-on]]
1644	$inner configure -borderwidth 4
1645
1646	checkbutton $inner.contour \
1647	-text "Isosurfaces" \
1648	-variable [itcl::scope _settings(-isosurfacevisible)] \
1649	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1650	-font "Arial 9"
1651
1652	checkbutton $inner.wireframe \
1653	-text "Wireframe" \
1654	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1655	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1656	-font "Arial 9"
1657
1658	checkbutton $inner.lighting \
1659	-text "Enable Lighting" \
1660	-variable [itcl::scope _settings(-isosurfacelighting)] \
1661	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1662	-font "Arial 9"
1663
1664	checkbutton $inner.edges \
1665	-text "Edges" \
1666	-variable [itcl::scope _settings(-isosurfaceedges)] \
1667	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1668	-font "Arial 9"
1669
1670	checkbutton $inner.outline \
1671	-text "Outline" \
1672	-variable [itcl::scope _settings(-outline)] \
1673	-command [itcl::code $this AdjustSetting -outline] \
1674	-font "Arial 9"
1675
1676	checkbutton $inner.legend \
1677	-text "Legend" \
1678	-variable [itcl::scope _settings(-legendvisible)] \
1679	-command [itcl::code $this AdjustSetting -legendvisible] \
1680	-font "Arial 9"
1681
1682	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1683	itk_component add isolineColor {
1684	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1685	}
1686	$inner.linecolor choices insert end \
1687	"black" "black" \
1688	"blue" "blue" \
1689	"cyan" "cyan" \
1690	"green" "green" \
1691	"grey" "grey" \
1692	"magenta" "magenta" \
1693	"orange" "orange" \
1694	"red" "red" \
1695	"white" "white" \
1696	"none" "none"
1697
1698	$itk_component(isolineColor) value "white"
1699	bind $inner.linecolor <<Value>> \
1700	[itcl::code $this AdjustSetting -isolinecolor]
1701
1702	label $inner.background_l -text "Background" -font "Arial 9"
1703	itk_component add background {
1704	Rappture::Combobox $inner.background -width 10 -editable 0
1705	}
1706	$inner.background choices insert end \
1707	"black" "black" \
1708	"white" "white" \
1709	"grey" "grey"
1710
1711	$itk_component(background) value $_settings(-background)
1712	bind $inner.background <<Value>> \
1713	[itcl::code $this AdjustSetting -background]
1714
1715	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1716	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1717	-variable [itcl::scope _settings(-isosurfaceopacity)] \
1718	-width 10 \
1719	-showvalue off \
1720	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1721
1722	itk_component add field_l {
1723	label $inner.field_l -text "Field" -font "Arial 9"
1724	} {
1725	ignore -font
1726	}
1727	itk_component add field {
1728	Rappture::Combobox $inner.field -width 10 -editable 0
1729	}
1730	bind $inner.field <<Value>> \
1731	[itcl::code $this AdjustSetting -field]
1732
1733	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1734	itk_component add colormap {
1735	Rappture::Combobox $inner.colormap -width 10 -editable 0
1736	}
1737	$inner.colormap choices insert end \
1738	"BCGYR" "BCGYR" \
1739	"BGYOR" "BGYOR" \
1740	"blue" "blue" \
1741	"blue-to-brown" "blue-to-brown" \
1742	"blue-to-orange" "blue-to-orange" \
1743	"blue-to-grey" "blue-to-grey" \
1744	"green-to-magenta" "green-to-magenta" \
1745	"greyscale" "greyscale" \
1746	"nanohub" "nanohub" \
1747	"rainbow" "rainbow" \
1748	"spectral" "spectral" \
1749	"ROYGB" "ROYGB" \
1750	"RYGCB" "RYGCB" \
1751	"brown-to-blue" "brown-to-blue" \
1752	"grey-to-blue" "grey-to-blue" \
1753	"orange-to-blue" "orange-to-blue"
1754
1755	$itk_component(colormap) value "BCGYR"
1756	bind $inner.colormap <<Value>> \
1757	[itcl::code $this AdjustSetting -colormap]
1758
1759	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1760	itk_component add numcontours {
1761	Rappture::Spinint $inner.numcontours \
1762	-min 0 -max 50 -font "arial 9"
1763	}
1764	$itk_component(numcontours) value $_settings(-numcontours)
1765	bind $itk_component(numcontours) <<Value>> \
1766	[itcl::code $this AdjustSetting -numcontours]
1767
1768	blt::table $inner \
1769	0,0 $inner.field_l -anchor w -pady 2 \
1770	0,1 $inner.field -anchor w -pady 2 -fill x \
1771	1,0 $inner.colormap_l -anchor w -pady 2 \
1772	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1773	2,0 $inner.linecolor_l -anchor w -pady 2 \
1774	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1775	3,0 $inner.background_l -anchor w -pady 2 \
1776	3,1 $inner.background -anchor w -pady 2 -fill x \
1777	4,0 $inner.numcontours_l -anchor w -pady 2 \
1778	4,1 $inner.numcontours -anchor w -pady 2 \
1779	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1780	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1781	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1782	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1783	9,0 $inner.legend -anchor w -pady 2 \
1784	10,0 $inner.opacity_l -anchor w -pady 2 \
1785	10,1 $inner.opacity -fill x -pady 2 -fill x \
1786
1787	blt::table configure $inner r* c* -resize none
1788	blt::table configure $inner r11 c1 -resize expand
1789	}
1790
1791	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1792
1793	set fg [option get $itk_component(hull) font Font]
1794	#set bfg [option get $itk_component(hull) boldFont Font]
1795
1796	set inner [$itk_component(main) insert end \
1797	-title "Axis Settings" \
1798	-icon [Rappture::icon axis2]]
1799	$inner configure -borderwidth 4
1800
1801	checkbutton $inner.visible \
1802	-text "Show Axes" \
1803	-variable [itcl::scope _settings(-axesvisible)] \
1804	-command [itcl::code $this AdjustSetting -axesvisible] \
1805	-font "Arial 9"
1806
1807	checkbutton $inner.labels \
1808	-text "Show Axis Labels" \
1809	-variable [itcl::scope _settings(-axislabelsvisible)] \
1810	-command [itcl::code $this AdjustSetting -axislabelsvisible] \
1811	-font "Arial 9"
1812
1813	checkbutton $inner.gridx \
1814	-text "Show X Grid" \
1815	-variable [itcl::scope _settings(-xgrid)] \
1816	-command [itcl::code $this AdjustSetting -xgrid] \
1817	-font "Arial 9"
1818	checkbutton $inner.gridy \
1819	-text "Show Y Grid" \
1820	-variable [itcl::scope _settings(-ygrid)] \
1821	-command [itcl::code $this AdjustSetting -ygrid] \
1822	-font "Arial 9"
1823	checkbutton $inner.gridz \
1824	-text "Show Z Grid" \
1825	-variable [itcl::scope _settings(-zgrid)] \
1826	-command [itcl::code $this AdjustSetting -zgrid] \
1827	-font "Arial 9"
1828
1829	label $inner.mode_l -text "Mode" -font "Arial 9"
1830
1831	itk_component add axisMode {
1832	Rappture::Combobox $inner.mode -width 10 -editable 0
1833	}
1834	$inner.mode choices insert end \
1835	"static_triad" "static" \
1836	"closest_triad" "closest" \
1837	"furthest_triad" "farthest" \
1838	"outer_edges" "outer"
1839	$itk_component(axisMode) value "static"
1840	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1841
1842	blt::table $inner \
1843	0,0 $inner.visible -anchor w -cspan 2 \
1844	1,0 $inner.labels -anchor w -cspan 2 \
1845	2,0 $inner.gridx -anchor w -cspan 2 \
1846	3,0 $inner.gridy -anchor w -cspan 2 \
1847	4,0 $inner.gridz -anchor w -cspan 2 \
1848	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1849	6,0 $inner.mode -fill x -cspan 2
1850
1851	blt::table configure $inner r* c* -resize none
1852	blt::table configure $inner r7 c1 -resize expand
1853	}
1854
1855
1856	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1857	set inner [$itk_component(main) insert end \
1858	-title "Camera Settings" \
1859	-icon [Rappture::icon camera]]
1860	$inner configure -borderwidth 4
1861
1862	label $inner.view_l -text "view" -font "Arial 9"
1863	set f [frame $inner.view]
1864	foreach side { front back left right top bottom } {
1865	button $f.$side -image [Rappture::icon view$side] \
1866	-command [itcl::code $this SetOrientation $side]
1867	Rappture::Tooltip::for $f.$side "Change the view to $side"
1868	pack $f.$side -side left
1869	}
1870
1871	blt::table $inner \
1872	0,0 $inner.view_l -anchor e -pady 2 \
1873	0,1 $inner.view -anchor w -pady 2
1874
1875	set labels { qx qy qz qw xpan ypan zoom }
1876	set row 1
1877	foreach tag $labels {
1878	label $inner.${tag}label -text $tag -font "Arial 9"
1879	entry $inner.${tag} -font "Arial 9" -bg white \
1880	-textvariable [itcl::scope _view($tag)]
1881	bind $inner.${tag} <KeyPress-Return> \
1882	[itcl::code $this camera set ${tag}]
1883	blt::table $inner \
1884	$row,0 $inner.${tag}label -anchor e -pady 2 \
1885	$row,1 $inner.${tag} -anchor w -pady 2
1886	blt::table configure $inner r$row -resize none
1887	incr row
1888	}
1889	checkbutton $inner.ortho \
1890	-text "Orthographic Projection" \
1891	-variable [itcl::scope _view(ortho)] \
1892	-command [itcl::code $this camera set ortho] \
1893	-font "Arial 9"
1894	blt::table $inner \
1895	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1896	blt::table configure $inner r$row -resize none
1897	incr row
1898
1899	blt::table configure $inner c* r* -resize none
1900	blt::table configure $inner c2 -resize expand
1901	blt::table configure $inner r$row -resize expand
1902	}
1903
1904	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1905
1906	set fg [option get $itk_component(hull) font Font]
1907
1908	set inner [$itk_component(main) insert end \
1909	-title "Cutplane Settings" \
1910	-icon [Rappture::icon cutbutton]]
1911
1912	$inner configure -borderwidth 4
1913
1914	checkbutton $inner.visible \
1915	-text "Cutplanes" \
1916	-variable [itcl::scope _settings(-cutplanesvisible)] \
1917	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
1918	-font "Arial 9"
1919
1920	checkbutton $inner.wireframe \
1921	-text "Wireframe" \
1922	-variable [itcl::scope _settings(-cutplanewireframe)] \
1923	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
1924	-font "Arial 9"
1925
1926	checkbutton $inner.lighting \
1927	-text "Enable Lighting" \
1928	-variable [itcl::scope _settings(-cutplanelighting)] \
1929	-command [itcl::code $this AdjustSetting -cutplanelighting] \
1930	-font "Arial 9"
1931
1932	checkbutton $inner.edges \
1933	-text "Edges" \
1934	-variable [itcl::scope _settings(-cutplaneedges)] \
1935	-command [itcl::code $this AdjustSetting -cutplaneedges] \
1936	-font "Arial 9"
1937
1938	checkbutton $inner.preinterp \
1939	-text "Interpolate Scalars" \
1940	-variable [itcl::scope _settings(-cutplanepreinterp)] \
1941	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
1942	-font "Arial 9"
1943
1944	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1945	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1946	-variable [itcl::scope _settings(-cutplaneopacity)] \
1947	-width 10 \
1948	-showvalue off \
1949	-command [itcl::code $this AdjustSetting -cutplaneopacity]
1950	$inner.opacity set $_settings(-cutplaneopacity)
1951
1952	# X-value slicer...
1953	itk_component add xbutton {
1954	Rappture::PushButton $inner.xbutton \
1955	-onimage [Rappture::icon x-cutplane-red] \
1956	-offimage [Rappture::icon x-cutplane-red] \
1957	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
1958	-variable [itcl::scope _settings(-xcutplanevisible)] \
1959	}
1960	Rappture::Tooltip::for $itk_component(xbutton) \
1961	"Toggle the X-axis cutplane on/off"
1962	$itk_component(xbutton) select
1963	itk_component add xposition {
1964	::scale $inner.xval -from 100 -to 0 \
1965	-width 10 -orient vertical -showvalue 1 \
1966	-borderwidth 1 -highlightthickness 0 \
1967	-command [itcl::code $this EventuallySetCutplane x] \
1968	-variable [itcl::scope _settings(-xcutplaneposition)] \
1969	-foreground red2 -font "Arial 9 bold"
1970	} {
1971	usual
1972	ignore -borderwidth -highlightthickness -foreground -font -background
1973	}
1974	# Set the default cutplane value before disabling the scale.
1975	$itk_component(xposition) set 50
1976	$itk_component(xposition) configure -state disabled
1977	Rappture::Tooltip::for $itk_component(xposition) \
1978	"@[itcl::code $this Slice tooltip x]"
1979
1980	# Y-value slicer...
1981	itk_component add ybutton {
1982	Rappture::PushButton $inner.ybutton \
1983	-onimage [Rappture::icon y-cutplane-green] \
1984	-offimage [Rappture::icon y-cutplane-green] \
1985	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
1986	-variable [itcl::scope _settings(-ycutplanevisible)] \
1987	}
1988	Rappture::Tooltip::for $itk_component(ybutton) \
1989	"Toggle the Y-axis cutplane on/off"
1990	$itk_component(ybutton) select
1991
1992	itk_component add yposition {
1993	::scale $inner.yval -from 100 -to 0 \
1994	-width 10 -orient vertical -showvalue 1 \
1995	-borderwidth 1 -highlightthickness 0 \
1996	-command [itcl::code $this EventuallySetCutplane y] \
1997	-variable [itcl::scope _settings(-ycutplaneposition)] \
1998	-foreground green3 -font "Arial 9 bold"
1999	} {
2000	usual
2001	ignore -borderwidth -highlightthickness -foreground -font
2002	}
2003	Rappture::Tooltip::for $itk_component(yposition) \
2004	"@[itcl::code $this Slice tooltip y]"
2005	# Set the default cutplane value before disabling the scale.
2006	$itk_component(yposition) set 50
2007	$itk_component(yposition) configure -state disabled
2008
2009	# Z-value slicer...
2010	itk_component add zbutton {
2011	Rappture::PushButton $inner.zbutton \
2012	-onimage [Rappture::icon z-cutplane-blue] \
2013	-offimage [Rappture::icon z-cutplane-blue] \
2014	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2015	-variable [itcl::scope _settings(-zcutplanevisible)] \
2016	} {
2017	usual
2018	ignore -foreground
2019	}
2020	Rappture::Tooltip::for $itk_component(zbutton) \
2021	"Toggle the Z-axis cutplane on/off"
2022	$itk_component(zbutton) select
2023
2024	itk_component add zposition {
2025	::scale $inner.zval -from 100 -to 0 \
2026	-width 10 -orient vertical -showvalue 1 \
2027	-borderwidth 1 -highlightthickness 0 \
2028	-command [itcl::code $this EventuallySetCutplane z] \
2029	-variable [itcl::scope _settings(-zcutplaneposition)] \
2030	-foreground blue3 -font "Arial 9 bold"
2031	} {
2032	usual
2033	ignore -borderwidth -highlightthickness -foreground -font
2034	}
2035	$itk_component(zposition) set 50
2036	$itk_component(zposition) configure -state disabled
2037	Rappture::Tooltip::for $itk_component(zposition) \
2038	"@[itcl::code $this Slice tooltip z]"
2039
2040	blt::table $inner \
2041	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2042	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2043	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2044	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2045	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2046	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2047	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2048	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2049	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2050	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2051	6,1 $inner.xval -fill y -rspan 4 \
2052	6,2 $inner.yval -fill y -rspan 4 \
2053	6,3 $inner.zval -fill y -rspan 4 \
2054
2055
2056	blt::table configure $inner r* c* -resize none
2057	blt::table configure $inner r9 c4 -resize expand
2058	}
2059
2060
2061
2062	#
2063	# camera --
2064	#
2065	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2066	switch -- $option {
2067	"show" {
2068	puts [array get _view]
2069	}
2070	"set" {
2071	set who [lindex $args 0]
2072	set x $_view($who)
2073	set code [catch { string is double $x } result]
2074	if { $code != 0 \|\| !$result } {
2075	return
2076	}
2077	switch -- $who {
2078	"ortho" {
2079	if {$_view(ortho)} {
2080	SendCmd "camera mode ortho"
2081	} else {
2082	SendCmd "camera mode persp"
2083	}
2084	}
2085	"xpan" - "ypan" {
2086	PanCamera
2087	}
2088	"qx" - "qy" - "qz" - "qw" {
2089	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2090	$_arcball quaternion $q
2091	EventuallyRotate $q
2092	}
2093	"zoom" {
2094	SendCmd "camera zoom $_view(zoom)"
2095	}
2096	}
2097	}
2098	}
2099	}
2100
2101	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2102	set bytes ""
2103	foreach dataobj [get] {
2104	foreach cname [$dataobj components] {
2105	set tag $dataobj-$cname
2106	set contents [$dataobj vtkdata $cname]
2107	append bytes "$contents\n"
2108	}
2109	}
2110	return [list .vtk $bytes]
2111	}
2112
2113	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2114	if { [image width $_image(download)] > 0 &&
2115	[image height $_image(download)] > 0 } {
2116	set bytes [$_image(download) data -format "jpeg -quality 100"]
2117	set bytes [Rappture::encoding::decode -as b64 $bytes]
2118	return [list .jpg $bytes]
2119	}
2120	return ""
2121	}
2122
2123	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2124	Rappture::Balloon $popup \
2125	-title "[Rappture::filexfer::label downloadWord] as..."
2126	set inner [$popup component inner]
2127	label $inner.summary -text "" -anchor w
2128	radiobutton $inner.vtk_button -text "VTK data file" \
2129	-variable [itcl::scope _downloadPopup(format)] \
2130	-font "Arial 9 " \
2131	-value vtk
2132	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2133	radiobutton $inner.image_button -text "Image File" \
2134	-variable [itcl::scope _downloadPopup(format)] \
2135	-font "Arial 9 " \
2136	-value image
2137	Rappture::Tooltip::for $inner.image_button \
2138	"Save as digital image."
2139
2140	button $inner.ok -text "Save" \
2141	-highlightthickness 0 -pady 2 -padx 3 \
2142	-command $command \
2143	-compound left \
2144	-image [Rappture::icon download]
2145
2146	button $inner.cancel -text "Cancel" \
2147	-highlightthickness 0 -pady 2 -padx 3 \
2148	-command [list $popup deactivate] \
2149	-compound left \
2150	-image [Rappture::icon cancel]
2151
2152	blt::table $inner \
2153	0,0 $inner.summary -cspan 2 \
2154	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2155	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2156	4,1 $inner.cancel -width .9i -fill y \
2157	4,0 $inner.ok -padx 2 -width .9i -fill y
2158	blt::table configure $inner r3 -height 4
2159	blt::table configure $inner r4 -pady 4
2160	raise $inner.image_button
2161	$inner.vtk_button invoke
2162	return $inner
2163	}
2164
2165	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2166	# Parse style string.
2167	set tag $dataobj-$comp
2168	array set style {
2169	-color BCGYR
2170	-cutplanesvisible 0
2171	-edgecolor black
2172	-edges 0
2173	-isosurfacevisible 1
2174	-levels 10
2175	-lighting 1
2176	-linewidth 1.0
2177	-opacity 0.6
2178	-outline 0
2179	-wireframe 0
2180	-xcutplaneposition 50
2181	-xcutplanevisible 1
2182	-ycutplaneposition 50
2183	-ycutplanevisible 1
2184	-zcutplaneposition 50
2185	-zcutplanevisible 1
2186	}
2187	array set style [$dataobj style $comp]
2188	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2189	set style(-opacity) 1
2190	}
2191	SendCmd "cutplane add $tag"
2192	SendCmd "cutplane visible 0 $tag"
2193
2194	# This is too complicated. We want to set the colormap, number of
2195	# isolines and opacity for the dataset. They can be the default values,
2196	# the style hints loaded with the dataset, or set by user controls. As
2197	# datasets get loaded, they first use the defaults that are overidden
2198	# by the style hints. If the user changes the global controls, then that
2199	# overrides everything else. I don't know what it means when global
2200	# controls are specified as style hints by each dataset. It complicates
2201	# the code to handle aberrant cases.
2202
2203	if { $_changed(-isosurfaceopacity) } {
2204	set style(-opacity) [expr $_settings(-isosurfaceopacity) * 0.01]
2205	}
2206	if { $_changed(-numcontours) } {
2207	set style(-levels) $_settings(-numcontours)
2208	}
2209	if { $_changed(-colormap) } {
2210	set style(-color) $_settings(-colormap)
2211	}
2212	if { $_currentColormap == "" } {
2213	SetCurrentColormap $style(-color)
2214	$itk_component(colormap) value $style(-color)
2215	}
2216	if { $_contourList(numLevels) != $style(-levels) } {
2217	set _settings(-numcontours) $style(-levels)
2218	$itk_component(numcontours) value $style(-levels)
2219	set _contourList(numLevels) $style(-levels)
2220	EventuallyChangeContourLevels
2221	}
2222	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
2223	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
2224	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
2225	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
2226	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
2227	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
2228	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
2229	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
2230
2231	GenerateContourList
2232	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2233
2234	SendCmd "contour3d edges $style(-edges) $tag"
2235	SendCmd "outline add $tag"
2236	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2237	SendCmd "outline visible $style(-outline) $tag"
2238	set _settings(-outline) $style(-outline)
2239	set _settings(-isosurfaceedges) $style(-edges)
2240	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2241	SendCmd "contour3d lighting $style(-lighting) $tag"
2242	set _settings(-isosurfacelighting) $style(-lighting)
2243	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2244	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2245	SendCmd "contour3d opacity $style(-opacity) $tag"
2246	set _settings(-isosurfaceopacity) [expr $style(-opacity) * 100.0]
2247	SetCurrentColormap $style(-color)
2248	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2249	set _settings(-isosurfacewireframe) $style(-wireframe)
2250	}
2251
2252	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2253	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2254	return 0
2255	}
2256	return 1
2257	}
2258
2259	#
2260	# EnterLegend --
2261	#
2262	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2263	SetLegendTip $x $y
2264	}
2265
2266	#
2267	# MotionLegend --
2268	#
2269	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2270	Rappture::Tooltip::tooltip cancel
2271	set c $itk_component(view)
2272	set cw [winfo width $c]
2273	set ch [winfo height $c]
2274	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2275	SetLegendTip $x $y
2276	}
2277	}
2278
2279	#
2280	# LeaveLegend --
2281	#
2282	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2283	Rappture::Tooltip::tooltip cancel
2284	.rappturetooltip configure -icon ""
2285	}
2286
2287	#
2288	# SetLegendTip --
2289	#
2290	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2291	set fname $_curFldName
2292	set c $itk_component(view)
2293	set w [winfo width $c]
2294	set h [winfo height $c]
2295
2296	set font "Arial 8"
2297	set lineht [font metrics $font -linespace]
2298
2299	set ih [image height $_image(legend)]
2300	set iy [expr $y - ($lineht + 2)]
2301
2302	if { [string match "component*" $fname] } {
2303	set title ""
2304	} else {
2305	if { [info exists _fields($fname)] } {
2306	foreach { title units } $_fields($fname) break
2307	if { $units != "" } {
2308	set title [format "%s (%s)" $title $units]
2309	}
2310	} else {
2311	set title $fname
2312	}
2313	}
2314	# If there's a legend title, increase the offset by the line height.
2315	if { $title != "" } {
2316	incr iy -$lineht
2317	}
2318	# Make a swatch of the selected color
2319	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2320	return
2321	}
2322	if { ![info exists _image(swatch)] } {
2323	set _image(swatch) [image create photo -width 24 -height 24]
2324	}
2325	set color [eval format "\#%02x%02x%02x" $pixel]
2326	$_image(swatch) put black -to 0 0 23 23
2327	$_image(swatch) put $color -to 1 1 22 22
2328	.rappturetooltip configure -icon $_image(swatch)
2329
2330	# Compute the value of the point
2331	if { [info exists _limits($_curFldName)] } {
2332	foreach { vmin vmax } $_limits($_curFldName) break
2333	set t [expr 1.0 - (double($iy) / double($ih-1))]
2334	set value [expr $t * ($vmax - $vmin) + $vmin]
2335	} else {
2336	set value 0.0
2337	}
2338	set tx [expr $x + 15]
2339	set ty [expr $y - 5]
2340	if { [info exists _isolines($y)] } {
2341	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2342	} else {
2343	Rappture::Tooltip::text $c [format "$title %g" $value]
2344	}
2345	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2346	}
2347
2348
2349	# ----------------------------------------------------------------------
2350	# USAGE: Slice move x\|y\|z <newval>
2351	#
2352	# Called automatically when the user drags the slider to move the
2353	# cut plane that slices 3D data. Gets the current value from the
2354	# slider and moves the cut plane to the appropriate point in the
2355	# data set.
2356	# ----------------------------------------------------------------------
2357	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2358	switch -- $option {
2359	"move" {
2360	set axis [lindex $args 0]
2361	set newval [lindex $args 1]
2362	if {[llength $args] != 2} {
2363	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2364	}
2365	set newpos [expr {0.01*$newval}]
2366	SendCmd "cutplane slice $axis $newpos"
2367	}
2368	"tooltip" {
2369	set axis [lindex $args 0]
2370	set val [$itk_component(${axis}position) get]
2371	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2372	}
2373	default {
2374	error "bad option \"$option\": should be axis, move, or tooltip"
2375	}
2376	}
2377	}
2378
2379	#
2380	# ReceiveLegend --
2381	#
2382	# Invoked automatically whenever the "legend" command comes in from
2383	# the rendering server. Indicates that binary image data with the
2384	# specified <size> will follow.
2385	#
2386	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2387	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2388	set _title $title
2389	regsub {\(mag\)} $title "" _title
2390	if { [IsConnected] } {
2391	set bytes [ReceiveBytes $size]
2392	if { ![info exists _image(legend)] } {
2393	set _image(legend) [image create photo]
2394	}
2395	$_image(legend) configure -data $bytes
2396	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2397	if { [catch {DrawLegend} errs] != 0 } {
2398	global errorInfo
2399	puts stderr "errs=$errs errorInfo=$errorInfo"
2400	}
2401	}
2402	}
2403
2404	#
2405	# DrawLegend --
2406	#
2407	# Draws the legend in the own canvas on the right side of the plot area.
2408	#
2409	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2410	set fname $_curFldName
2411	set c $itk_component(view)
2412	set w [winfo width $c]
2413	set h [winfo height $c]
2414	set font "Arial 8"
2415	set lineht [font metrics $font -linespace]
2416
2417	if { [string match "component*" $fname] } {
2418	set title ""
2419	} else {
2420	if { [info exists _fields($fname)] } {
2421	foreach { title units } $_fields($fname) break
2422	if { $units != "" } {
2423	set title [format "%s (%s)" $title $units]
2424	}
2425	} else {
2426	set title $fname
2427	}
2428	}
2429	set x [expr $w - 2]
2430	if { !$_settings(-legendvisible) } {
2431	$c delete legend
2432	return
2433	}
2434	if { [$c find withtag "legend"] == "" } {
2435	set y 2
2436	# If there's a legend title, create a text item for the title.
2437	$c create text $x $y \
2438	-anchor ne \
2439	-fill $itk_option(-plotforeground) -tags "title legend" \
2440	-font $font
2441	if { $title != "" } {
2442	incr y $lineht
2443	}
2444	$c create text $x $y \
2445	-anchor ne \
2446	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2447	-font $font
2448	incr y $lineht
2449	$c create image $x $y \
2450	-anchor ne \
2451	-image $_image(legend) -tags "colormap legend"
2452	$c create rectangle $x $y 1 1 \
2453	-fill "" -outline "" -tags "sensor legend"
2454	$c create text $x [expr {$h-2}] \
2455	-anchor se \
2456	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2457	-font $font
2458	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2459	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2460	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2461	}
2462	$c delete isoline
2463	set x2 $x
2464	set iw [image width $_image(legend)]
2465	set ih [image height $_image(legend)]
2466	set x1 [expr $x2 - ($iw*12)/10]
2467	set color $_settings(-isolinecolor)
2468	# Draw the isolines on the legend.
2469	array unset _isolines
2470	if { $color != "none" && [info exists _limits($_curFldName)] &&
2471	$_settings(-numcontours) > 0 } {
2472
2473	foreach { vmin vmax } $_limits($_curFldName) break
2474	set range [expr double($vmax - $vmin)]
2475	if { $range <= 0.0 } {
2476	set range 1.0; # Min is greater or equal to max.
2477	}
2478	set tags "isoline legend"
2479	set offset [expr 2 + $lineht]
2480	if { $title != "" } {
2481	incr offset $lineht
2482	}
2483	foreach value $_contourList(values) {
2484	set norm [expr 1.0 - (($value - $vmin) / $range)]
2485	set y1 [expr int(round(($norm * $ih) + $offset))]
2486	for { set off 0 } { $off < 3 } { incr off } {
2487	set _isolines([expr $y1 + $off]) $value
2488	set _isolines([expr $y1 - $off]) $value
2489	}
2490	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2491	}
2492	}
2493
2494	$c bind title <ButtonPress> [itcl::code $this Combo post]
2495	$c bind title <Enter> [itcl::code $this Combo activate]
2496	$c bind title <Leave> [itcl::code $this Combo deactivate]
2497	# Reset the item coordinates according the current size of the plot.
2498	$c itemconfigure title -text $title
2499	if { [info exists _limits($_curFldName)] } {
2500	foreach { vmin vmax } $_limits($_curFldName) break
2501	$c itemconfigure vmin -text [format %g $vmin]
2502	$c itemconfigure vmax -text [format %g $vmax]
2503	}
2504	set y 2
2505	# If there's a legend title, move the title to the correct position
2506	if { $title != "" } {
2507	$c itemconfigure title -text $title
2508	$c coords title $x $y
2509	incr y $lineht
2510	$c raise title
2511	}
2512	$c coords vmax $x $y
2513	incr y $lineht
2514	$c coords colormap $x $y
2515	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2516	$c raise sensor
2517	$c coords vmin $x [expr {$h - 2}]
2518	}
2519
2520	# ----------------------------------------------------------------------
2521	# USAGE: _dropdown post
2522	# USAGE: _dropdown unpost
2523	# USAGE: _dropdown select
2524	#
2525	# Used internally to handle the dropdown list for this combobox. The
2526	# post/unpost options are invoked when the list is posted or unposted
2527	# to manage the relief of the controlling button. The select option
2528	# is invoked whenever there is a selection from the list, to assign
2529	# the value back to the gauge.
2530	# ----------------------------------------------------------------------
2531	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2532	set c $itk_component(view)
2533	switch -- $option {
2534	post {
2535	foreach { x1 y1 x2 y2 } [$c bbox title] break
2536	set cw [winfo width $itk_component(view)]
2537	set mw [winfo reqwidth $itk_component(fieldmenu)]
2538	set x1 [expr $cw - $mw]
2539	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2540	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2541	tk_popup $itk_component(fieldmenu) $x $y
2542	}
2543	activate {
2544	$c itemconfigure title -fill red
2545	}
2546	deactivate {
2547	$c itemconfigure title -fill $itk_option(-plotforeground)
2548	}
2549	invoke {
2550	$itk_component(field) value $_curFldLabel
2551	AdjustSetting -field
2552	}
2553	default {
2554	error "bad option \"$option\": should be post, unpost, select"
2555	}
2556	}
2557	}
2558
2559	#
2560	# SetCurrentColormap --
2561	#
2562	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
2563	# Keep track of the colormaps that we build.
2564	if { ![info exists _colormaps($name)] } {
2565	BuildColormap $name
2566	set _colormaps($name) 1
2567	}
2568	set _currentColormap $name
2569	SendCmd "contour3d colormap $_currentColormap"
2570	SendCmd "cutplane colormap $_currentColormap"
2571	}
2572
2573	#
2574	# BuildColormap --
2575	#
2576	# Build the designated colormap on the server.
2577	#
2578	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
2579	set cmap [ColorsToColormap $name]
2580	if { [llength $cmap] == 0 } {
2581	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2582	}
2583	set wmap "0.0 1.0 1.0 1.0"
2584	SendCmd "colormap add $name { $cmap } { $wmap }"
2585	}
2586
2587	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
2588	array set positions {
2589	front "1 0 0 0"
2590	back "0 0 1 0"
2591	left "0.707107 0 -0.707107 0"
2592	right "0.707107 0 0.707107 0"
2593	top "0.707107 -0.707107 0 0"
2594	bottom "0.707107 0.707107 0 0"
2595	}
2596	foreach name { qw qx qy qz } value $positions($side) {
2597	set _view($name) $value
2598	}
2599	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2600	$_arcball quaternion $q
2601	SendCmd "camera orient $q"
2602	SendCmd "camera reset"
2603	set _view(xpan) 0
2604	set _view(ypan) 0
2605	set _view(zoom) 1.0
2606	}
2607
2608	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
2609	if { ![info exists _limits($_curFldName)] } {
2610	return ""
2611	}
2612	if { $_contourList(numLevels) < 1 } {
2613	return ""
2614	}
2615	foreach { vmin vmax } $_limits($_curFldName) break
2616	set v [blt::vector create \#auto]
2617	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
2618	$v delete end 0
2619	set values [$v range 0 end]
2620	blt::vector destroy $v
2621	set _contourList(values) $values
2622	}

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