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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 4475

Last change on this file since 4475 was 4475, checked in by ldelgass, 10 years ago
merge from trunk
File size: 88.7 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	-axismode "static"
239	-background black
240	-colormap BCGYR
241	-colormapvisible 1
242	-cutplaneedges 0
243	-cutplanelighting 1
244	-cutplaneopacity 100
245	-cutplanepreinterp 1
246	-cutplanesvisible 0
247	-cutplanewireframe 0
248	-field "Default"
249	-isolinecolor white
250	-isosurfaceedges 0
251	-isosurfacelighting 1
252	-isosurfaceopacity 60
253	-isosurfacevisible 1
254	-isosurfacewireframe 0
255	-legendvisible 1
256	-numcontours 10
257	-outline 0
258	-xcutplaneposition 50
259	-xcutplanevisible 1
260	-xgrid 0
261	-ycutplaneposition 50
262	-ycutplanevisible 1
263	-ygrid 0
264	-zcutplaneposition 50
265	-zcutplanevisible 1
266	-zgrid 0
267	}
268	array set _changed {
269	-colormap 0
270	-isosurfaceopacity 0
271	-numcontours 0
272	}
273
274	itk_component add view {
275	canvas $itk_component(plotarea).view \
276	-highlightthickness 0 -borderwidth 0
277	} {
278	usual
279	ignore -highlightthickness -borderwidth -background
280	}
281
282	itk_component add fieldmenu {
283	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
284	-tearoff 0
285	} {
286	usual
287	ignore -background -foreground -relief -tearoff
288	}
289	set c $itk_component(view)
290	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
291	bind $c <4> [itcl::code $this Zoom in 0.25]
292	bind $c <5> [itcl::code $this Zoom out 0.25]
293	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
294	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
295	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
296	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
297	bind $c <Enter> "focus %W"
298	bind $c <Control-F1> [itcl::code $this ToggleConsole]
299
300	# Fix the scrollregion in case we go off screen
301	$c configure -scrollregion [$c bbox all]
302
303	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
304	set _map(cwidth) -1
305	set _map(cheight) -1
306	set _map(zoom) 1.0
307	set _map(original) ""
308
309	set f [$itk_component(main) component controls]
310	itk_component add reset {
311	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
312	-highlightthickness 0 \
313	-image [Rappture::icon reset-view] \
314	-command [itcl::code $this Zoom reset]
315	} {
316	usual
317	ignore -highlightthickness
318	}
319	pack $itk_component(reset) -side top -padx 2 -pady 2
320	Rappture::Tooltip::for $itk_component(reset) \
321	"Reset the view to the default zoom level"
322
323	itk_component add zoomin {
324	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
325	-highlightthickness 0 \
326	-image [Rappture::icon zoom-in] \
327	-command [itcl::code $this Zoom in]
328	} {
329	usual
330	ignore -highlightthickness
331	}
332	pack $itk_component(zoomin) -side top -padx 2 -pady 2
333	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
334
335	itk_component add zoomout {
336	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
337	-highlightthickness 0 \
338	-image [Rappture::icon zoom-out] \
339	-command [itcl::code $this Zoom out]
340	} {
341	usual
342	ignore -highlightthickness
343	}
344	pack $itk_component(zoomout) -side top -padx 2 -pady 2
345	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
346
347	itk_component add contour {
348	Rappture::PushButton $f.contour \
349	-onimage [Rappture::icon volume-on] \
350	-offimage [Rappture::icon volume-off] \
351	-variable [itcl::scope _settings(-isosurfacevisible)] \
352	-command [itcl::code $this AdjustSetting -isosurfacevisible]
353	}
354	$itk_component(contour) select
355	Rappture::Tooltip::for $itk_component(contour) \
356	"Hide the isosurface"
357	pack $itk_component(contour) -padx 2 -pady 2
358
359	itk_component add cutplane {
360	Rappture::PushButton $f.cutplane \
361	-onimage [Rappture::icon cutbutton] \
362	-offimage [Rappture::icon cutbutton] \
363	-variable [itcl::scope _settings(-cutplanesvisible)] \
364	-command [itcl::code $this AdjustSetting -cutplanesvisible]
365	}
366	Rappture::Tooltip::for $itk_component(cutplane) \
367	"Show the cutplanes"
368	pack $itk_component(cutplane) -padx 2 -pady 2
369
370
371	if { [catch {
372	BuildIsosurfaceTab
373	BuildCutplaneTab
374	BuildAxisTab
375	BuildCameraTab
376	} errs] != 0 } {
377	puts stderr errs=$errs
378	}
379	# Legend
380
381	set _image(legend) [image create photo]
382	itk_component add legend {
383	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
384	} {
385	usual
386	ignore -highlightthickness
387	rename -background -plotbackground plotBackground Background
388	}
389
390	# Hack around the Tk panewindow. The problem is that the requested
391	# size of the 3d view isn't set until an image is retrieved from
392	# the server. So the panewindow uses the tiny size.
393	set w 10000
394	pack forget $itk_component(view)
395	blt::table $itk_component(plotarea) \
396	0,0 $itk_component(view) -fill both -reqwidth $w
397	blt::table configure $itk_component(plotarea) c1 -resize none
398
399	# Bindings for rotation via mouse
400	bind $itk_component(view) <ButtonPress-1> \
401	[itcl::code $this Rotate click %x %y]
402	bind $itk_component(view) <B1-Motion> \
403	[itcl::code $this Rotate drag %x %y]
404	bind $itk_component(view) <ButtonRelease-1> \
405	[itcl::code $this Rotate release %x %y]
406
407	# Bindings for panning via mouse
408	bind $itk_component(view) <ButtonPress-2> \
409	[itcl::code $this Pan click %x %y]
410	bind $itk_component(view) <B2-Motion> \
411	[itcl::code $this Pan drag %x %y]
412	bind $itk_component(view) <ButtonRelease-2> \
413	[itcl::code $this Pan release %x %y]
414
415	#bind $itk_component(view) <ButtonRelease-3> \
416	# [itcl::code $this Pick %x %y]
417
418	# Bindings for panning via keyboard
419	bind $itk_component(view) <KeyPress-Left> \
420	[itcl::code $this Pan set -10 0]
421	bind $itk_component(view) <KeyPress-Right> \
422	[itcl::code $this Pan set 10 0]
423	bind $itk_component(view) <KeyPress-Up> \
424	[itcl::code $this Pan set 0 -10]
425	bind $itk_component(view) <KeyPress-Down> \
426	[itcl::code $this Pan set 0 10]
427	bind $itk_component(view) <Shift-KeyPress-Left> \
428	[itcl::code $this Pan set -2 0]
429	bind $itk_component(view) <Shift-KeyPress-Right> \
430	[itcl::code $this Pan set 2 0]
431	bind $itk_component(view) <Shift-KeyPress-Up> \
432	[itcl::code $this Pan set 0 -2]
433	bind $itk_component(view) <Shift-KeyPress-Down> \
434	[itcl::code $this Pan set 0 2]
435
436	# Bindings for zoom via keyboard
437	bind $itk_component(view) <KeyPress-Prior> \
438	[itcl::code $this Zoom out]
439	bind $itk_component(view) <KeyPress-Next> \
440	[itcl::code $this Zoom in]
441
442	bind $itk_component(view) <Enter> "focus $itk_component(view)"
443
444	if {[string equal "x11" [tk windowingsystem]]} {
445	# Bindings for zoom via mouse
446	bind $itk_component(view) <4> [itcl::code $this Zoom out]
447	bind $itk_component(view) <5> [itcl::code $this Zoom in]
448	}
449
450	set _image(download) [image create photo]
451
452	eval itk_initialize $args
453
454	EnableWaitDialog 500
455	Connect
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} ${pos}"
1439	set _cutplanePending 0
1440	}
1441	"-colormap" {
1442	set _changed($what) 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	} else {
1536	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1537	}
1538	SendCmd "cutplane colormode $_colorMode $_curFldName"
1539	SendCmd "contour3d colormode $_colorMode $_curFldName"
1540	SendCmd "camera reset"
1541	DrawLegend
1542	}
1543	"-legendvisible" {
1544	if { !$_settings($what) } {
1545	$itk_component(view) delete legend
1546	}
1547	DrawLegend
1548	}
1549	default {
1550	error "don't know how to fix $what"
1551	}
1552	}
1553	}
1554
1555
1556	#
1557	# RequestLegend --
1558	#
1559	# Request a new legend from the server. The size of the legend
1560	# is determined from the height of the canvas.
1561	#
1562	# This should be called when
1563	# 1. A new current colormap is set.
1564	# 2. Window is resized.
1565	# 3. The limits of the data have changed. (Just need a redraw).
1566	# 4. Number of isolines have changed. (Just need a redraw).
1567	# 5. Legend becomes visible (Just need a redraw).
1568	#
1569	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1570	set _legendPending 0
1571	if { ![info exists _fields($_curFldName)] } {
1572	return
1573	}
1574	set fname $_curFldName
1575	set font "Arial 8"
1576	set lineht [font metrics $font -linespace]
1577	set w 12
1578	set h [expr {$_height - 2 * ($lineht + 2)}]
1579	if { $h < 1 } {
1580	return
1581	}
1582	if { [string match "component*" $fname] } {
1583	set title ""
1584	} else {
1585	if { [info exists _fields($fname)] } {
1586	foreach { title units } $_fields($fname) break
1587	if { $units != "" } {
1588	set title [format "%s (%s)" $title $units]
1589	}
1590	} else {
1591	set title $fname
1592	}
1593	}
1594	# If there's a title too, subtract one more line
1595	if { $title != "" } {
1596	incr h -$lineht
1597	}
1598	# Set the legend on the first heightmap dataset.
1599	if { $_currentColormap != "" } {
1600	set cmap $_currentColormap
1601	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1602	}
1603	}
1604
1605	# ----------------------------------------------------------------------
1606	# CONFIGURATION OPTION: -plotbackground
1607	# ----------------------------------------------------------------------
1608	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1609	if { [isconnected] } {
1610	set rgb [Color2RGB $itk_option(-plotbackground)]
1611	SendCmd "screen bgcolor $rgb"
1612	}
1613	}
1614
1615	# ----------------------------------------------------------------------
1616	# CONFIGURATION OPTION: -plotforeground
1617	# ----------------------------------------------------------------------
1618	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1619	if { [isconnected] } {
1620	set rgb [Color2RGB $itk_option(-plotforeground)]
1621	SendCmd "axis color all $rgb"
1622	SendCmd "outline color $rgb"
1623	SendCmd "cutplane color $rgb"
1624	}
1625	}
1626
1627	itcl::body Rappture::VtkIsosurfaceViewer::limits { dataobj } {
1628	foreach { limits(xmin) limits(xmax) } [$dataobj limits x] break
1629	foreach { limits(ymin) limits(ymax) } [$dataobj limits y] break
1630	foreach { limits(zmin) limits(zmax) } [$dataobj limits z] break
1631	foreach { limits(vmin) limits(vmax) } [$dataobj limits v] break
1632	return [array get limits]
1633	}
1634
1635	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1636
1637	set fg [option get $itk_component(hull) font Font]
1638	#set bfg [option get $itk_component(hull) boldFont Font]
1639
1640	set inner [$itk_component(main) insert end \
1641	-title "Isosurface Settings" \
1642	-icon [Rappture::icon volume-on]]
1643	$inner configure -borderwidth 4
1644
1645	checkbutton $inner.contour \
1646	-text "Isosurfaces" \
1647	-variable [itcl::scope _settings(-isosurfacevisible)] \
1648	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1649	-font "Arial 9"
1650
1651	checkbutton $inner.wireframe \
1652	-text "Wireframe" \
1653	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1654	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1655	-font "Arial 9"
1656
1657	checkbutton $inner.lighting \
1658	-text "Enable Lighting" \
1659	-variable [itcl::scope _settings(-isosurfacelighting)] \
1660	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1661	-font "Arial 9"
1662
1663	checkbutton $inner.edges \
1664	-text "Edges" \
1665	-variable [itcl::scope _settings(-isosurfaceedges)] \
1666	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1667	-font "Arial 9"
1668
1669	checkbutton $inner.outline \
1670	-text "Outline" \
1671	-variable [itcl::scope _settings(-outline)] \
1672	-command [itcl::code $this AdjustSetting -outline] \
1673	-font "Arial 9"
1674
1675	checkbutton $inner.legend \
1676	-text "Legend" \
1677	-variable [itcl::scope _settings(-legendvisible)] \
1678	-command [itcl::code $this AdjustSetting -legendvisible] \
1679	-font "Arial 9"
1680
1681	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1682	itk_component add isolineColor {
1683	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1684	}
1685	$inner.linecolor choices insert end \
1686	"black" "black" \
1687	"blue" "blue" \
1688	"cyan" "cyan" \
1689	"green" "green" \
1690	"grey" "grey" \
1691	"magenta" "magenta" \
1692	"orange" "orange" \
1693	"red" "red" \
1694	"white" "white" \
1695	"none" "none"
1696
1697	$itk_component(isolineColor) value "white"
1698	bind $inner.linecolor <<Value>> \
1699	[itcl::code $this AdjustSetting -isolinecolor]
1700
1701	label $inner.background_l -text "Background" -font "Arial 9"
1702	itk_component add background {
1703	Rappture::Combobox $inner.background -width 10 -editable 0
1704	}
1705	$inner.background choices insert end \
1706	"black" "black" \
1707	"white" "white" \
1708	"grey" "grey"
1709
1710	$itk_component(background) value $_settings(-background)
1711	bind $inner.background <<Value>> \
1712	[itcl::code $this AdjustSetting -background]
1713
1714	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1715	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1716	-variable [itcl::scope _settings(-isosurfaceopacity)] \
1717	-width 10 \
1718	-showvalue off \
1719	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1720
1721	itk_component add field_l {
1722	label $inner.field_l -text "Field" -font "Arial 9"
1723	} {
1724	ignore -font
1725	}
1726	itk_component add field {
1727	Rappture::Combobox $inner.field -width 10 -editable 0
1728	}
1729	bind $inner.field <<Value>> \
1730	[itcl::code $this AdjustSetting -field]
1731
1732	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1733	itk_component add colormap {
1734	Rappture::Combobox $inner.colormap -width 10 -editable 0
1735	}
1736
1737	$inner.colormap choices insert end [GetColormapList]
1738	$itk_component(colormap) value "BCGYR"
1739	bind $inner.colormap <<Value>> \
1740	[itcl::code $this AdjustSetting -colormap]
1741
1742	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1743	itk_component add numcontours {
1744	Rappture::Spinint $inner.numcontours \
1745	-min 0 -max 50 -font "arial 9"
1746	}
1747	$itk_component(numcontours) value $_settings(-numcontours)
1748	bind $itk_component(numcontours) <<Value>> \
1749	[itcl::code $this AdjustSetting -numcontours]
1750
1751	blt::table $inner \
1752	0,0 $inner.field_l -anchor w -pady 2 \
1753	0,1 $inner.field -anchor w -pady 2 -fill x \
1754	1,0 $inner.colormap_l -anchor w -pady 2 \
1755	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1756	2,0 $inner.linecolor_l -anchor w -pady 2 \
1757	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1758	3,0 $inner.background_l -anchor w -pady 2 \
1759	3,1 $inner.background -anchor w -pady 2 -fill x \
1760	4,0 $inner.numcontours_l -anchor w -pady 2 \
1761	4,1 $inner.numcontours -anchor w -pady 2 \
1762	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1763	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1764	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1765	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1766	9,0 $inner.legend -anchor w -pady 2 \
1767	10,0 $inner.opacity_l -anchor w -pady 2 \
1768	10,1 $inner.opacity -fill x -pady 2 -fill x \
1769
1770	blt::table configure $inner r* c* -resize none
1771	blt::table configure $inner r11 c1 -resize expand
1772	}
1773
1774	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1775
1776	set fg [option get $itk_component(hull) font Font]
1777	#set bfg [option get $itk_component(hull) boldFont Font]
1778
1779	set inner [$itk_component(main) insert end \
1780	-title "Axis Settings" \
1781	-icon [Rappture::icon axis2]]
1782	$inner configure -borderwidth 4
1783
1784	checkbutton $inner.visible \
1785	-text "Show Axes" \
1786	-variable [itcl::scope _settings(-axesvisible)] \
1787	-command [itcl::code $this AdjustSetting -axesvisible] \
1788	-font "Arial 9"
1789
1790	checkbutton $inner.labels \
1791	-text "Show Axis Labels" \
1792	-variable [itcl::scope _settings(-axislabelsvisible)] \
1793	-command [itcl::code $this AdjustSetting -axislabelsvisible] \
1794	-font "Arial 9"
1795
1796	checkbutton $inner.gridx \
1797	-text "Show X Grid" \
1798	-variable [itcl::scope _settings(-xgrid)] \
1799	-command [itcl::code $this AdjustSetting -xgrid] \
1800	-font "Arial 9"
1801	checkbutton $inner.gridy \
1802	-text "Show Y Grid" \
1803	-variable [itcl::scope _settings(-ygrid)] \
1804	-command [itcl::code $this AdjustSetting -ygrid] \
1805	-font "Arial 9"
1806	checkbutton $inner.gridz \
1807	-text "Show Z Grid" \
1808	-variable [itcl::scope _settings(-zgrid)] \
1809	-command [itcl::code $this AdjustSetting -zgrid] \
1810	-font "Arial 9"
1811
1812	label $inner.mode_l -text "Mode" -font "Arial 9"
1813
1814	itk_component add axisMode {
1815	Rappture::Combobox $inner.mode -width 10 -editable 0
1816	}
1817	$inner.mode choices insert end \
1818	"static_triad" "static" \
1819	"closest_triad" "closest" \
1820	"furthest_triad" "farthest" \
1821	"outer_edges" "outer"
1822	$itk_component(axisMode) value $_settings(-axismode)
1823	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1824
1825	blt::table $inner \
1826	0,0 $inner.visible -anchor w -cspan 2 \
1827	1,0 $inner.labels -anchor w -cspan 2 \
1828	2,0 $inner.gridx -anchor w -cspan 2 \
1829	3,0 $inner.gridy -anchor w -cspan 2 \
1830	4,0 $inner.gridz -anchor w -cspan 2 \
1831	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1832	6,0 $inner.mode -fill x -cspan 2
1833
1834	blt::table configure $inner r* c* -resize none
1835	blt::table configure $inner r7 c1 -resize expand
1836	}
1837
1838
1839	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1840	set inner [$itk_component(main) insert end \
1841	-title "Camera Settings" \
1842	-icon [Rappture::icon camera]]
1843	$inner configure -borderwidth 4
1844
1845	label $inner.view_l -text "view" -font "Arial 9"
1846	set f [frame $inner.view]
1847	foreach side { front back left right top bottom } {
1848	button $f.$side -image [Rappture::icon view$side] \
1849	-command [itcl::code $this SetOrientation $side]
1850	Rappture::Tooltip::for $f.$side "Change the view to $side"
1851	pack $f.$side -side left
1852	}
1853
1854	blt::table $inner \
1855	0,0 $inner.view_l -anchor e -pady 2 \
1856	0,1 $inner.view -anchor w -pady 2
1857
1858	set labels { qx qy qz qw xpan ypan zoom }
1859	set row 1
1860	foreach tag $labels {
1861	label $inner.${tag}label -text $tag -font "Arial 9"
1862	entry $inner.${tag} -font "Arial 9" -bg white \
1863	-textvariable [itcl::scope _view($tag)]
1864	bind $inner.${tag} <KeyPress-Return> \
1865	[itcl::code $this camera set ${tag}]
1866	blt::table $inner \
1867	$row,0 $inner.${tag}label -anchor e -pady 2 \
1868	$row,1 $inner.${tag} -anchor w -pady 2
1869	blt::table configure $inner r$row -resize none
1870	incr row
1871	}
1872	checkbutton $inner.ortho \
1873	-text "Orthographic Projection" \
1874	-variable [itcl::scope _view(ortho)] \
1875	-command [itcl::code $this camera set ortho] \
1876	-font "Arial 9"
1877	blt::table $inner \
1878	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1879	blt::table configure $inner r$row -resize none
1880	incr row
1881
1882	blt::table configure $inner c* r* -resize none
1883	blt::table configure $inner c2 -resize expand
1884	blt::table configure $inner r$row -resize expand
1885	}
1886
1887	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1888
1889	set fg [option get $itk_component(hull) font Font]
1890
1891	set inner [$itk_component(main) insert end \
1892	-title "Cutplane Settings" \
1893	-icon [Rappture::icon cutbutton]]
1894
1895	$inner configure -borderwidth 4
1896
1897	checkbutton $inner.visible \
1898	-text "Cutplanes" \
1899	-variable [itcl::scope _settings(-cutplanesvisible)] \
1900	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
1901	-font "Arial 9"
1902
1903	checkbutton $inner.wireframe \
1904	-text "Wireframe" \
1905	-variable [itcl::scope _settings(-cutplanewireframe)] \
1906	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
1907	-font "Arial 9"
1908
1909	checkbutton $inner.lighting \
1910	-text "Enable Lighting" \
1911	-variable [itcl::scope _settings(-cutplanelighting)] \
1912	-command [itcl::code $this AdjustSetting -cutplanelighting] \
1913	-font "Arial 9"
1914
1915	checkbutton $inner.edges \
1916	-text "Edges" \
1917	-variable [itcl::scope _settings(-cutplaneedges)] \
1918	-command [itcl::code $this AdjustSetting -cutplaneedges] \
1919	-font "Arial 9"
1920
1921	checkbutton $inner.preinterp \
1922	-text "Interpolate Scalars" \
1923	-variable [itcl::scope _settings(-cutplanepreinterp)] \
1924	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
1925	-font "Arial 9"
1926
1927	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1928	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1929	-variable [itcl::scope _settings(-cutplaneopacity)] \
1930	-width 10 \
1931	-showvalue off \
1932	-command [itcl::code $this AdjustSetting -cutplaneopacity]
1933	$inner.opacity set $_settings(-cutplaneopacity)
1934
1935	# X-value slicer...
1936	itk_component add xbutton {
1937	Rappture::PushButton $inner.xbutton \
1938	-onimage [Rappture::icon x-cutplane-red] \
1939	-offimage [Rappture::icon x-cutplane-red] \
1940	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
1941	-variable [itcl::scope _settings(-xcutplanevisible)] \
1942	}
1943	Rappture::Tooltip::for $itk_component(xbutton) \
1944	"Toggle the X-axis cutplane on/off"
1945	$itk_component(xbutton) select
1946	itk_component add xposition {
1947	::scale $inner.xval -from 100 -to 0 \
1948	-width 10 -orient vertical -showvalue 1 \
1949	-borderwidth 1 -highlightthickness 0 \
1950	-command [itcl::code $this EventuallySetCutplane x] \
1951	-variable [itcl::scope _settings(-xcutplaneposition)] \
1952	-foreground red2 -font "Arial 9 bold"
1953	} {
1954	usual
1955	ignore -borderwidth -highlightthickness -foreground -font -background
1956	}
1957	# Set the default cutplane value before disabling the scale.
1958	$itk_component(xposition) set 50
1959	$itk_component(xposition) configure -state disabled
1960	Rappture::Tooltip::for $itk_component(xposition) \
1961	"@[itcl::code $this Slice tooltip x]"
1962
1963	# Y-value slicer...
1964	itk_component add ybutton {
1965	Rappture::PushButton $inner.ybutton \
1966	-onimage [Rappture::icon y-cutplane-green] \
1967	-offimage [Rappture::icon y-cutplane-green] \
1968	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
1969	-variable [itcl::scope _settings(-ycutplanevisible)] \
1970	}
1971	Rappture::Tooltip::for $itk_component(ybutton) \
1972	"Toggle the Y-axis cutplane on/off"
1973	$itk_component(ybutton) select
1974
1975	itk_component add yposition {
1976	::scale $inner.yval -from 100 -to 0 \
1977	-width 10 -orient vertical -showvalue 1 \
1978	-borderwidth 1 -highlightthickness 0 \
1979	-command [itcl::code $this EventuallySetCutplane y] \
1980	-variable [itcl::scope _settings(-ycutplaneposition)] \
1981	-foreground green3 -font "Arial 9 bold"
1982	} {
1983	usual
1984	ignore -borderwidth -highlightthickness -foreground -font
1985	}
1986	Rappture::Tooltip::for $itk_component(yposition) \
1987	"@[itcl::code $this Slice tooltip y]"
1988	# Set the default cutplane value before disabling the scale.
1989	$itk_component(yposition) set 50
1990	$itk_component(yposition) configure -state disabled
1991
1992	# Z-value slicer...
1993	itk_component add zbutton {
1994	Rappture::PushButton $inner.zbutton \
1995	-onimage [Rappture::icon z-cutplane-blue] \
1996	-offimage [Rappture::icon z-cutplane-blue] \
1997	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
1998	-variable [itcl::scope _settings(-zcutplanevisible)] \
1999	} {
2000	usual
2001	ignore -foreground
2002	}
2003	Rappture::Tooltip::for $itk_component(zbutton) \
2004	"Toggle the Z-axis cutplane on/off"
2005	$itk_component(zbutton) select
2006
2007	itk_component add zposition {
2008	::scale $inner.zval -from 100 -to 0 \
2009	-width 10 -orient vertical -showvalue 1 \
2010	-borderwidth 1 -highlightthickness 0 \
2011	-command [itcl::code $this EventuallySetCutplane z] \
2012	-variable [itcl::scope _settings(-zcutplaneposition)] \
2013	-foreground blue3 -font "Arial 9 bold"
2014	} {
2015	usual
2016	ignore -borderwidth -highlightthickness -foreground -font
2017	}
2018	$itk_component(zposition) set 50
2019	$itk_component(zposition) configure -state disabled
2020	Rappture::Tooltip::for $itk_component(zposition) \
2021	"@[itcl::code $this Slice tooltip z]"
2022
2023	blt::table $inner \
2024	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2025	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2026	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2027	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2028	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2029	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2030	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2031	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2032	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2033	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2034	6,1 $inner.xval -fill y -rspan 4 \
2035	6,2 $inner.yval -fill y -rspan 4 \
2036	6,3 $inner.zval -fill y -rspan 4 \
2037
2038
2039	blt::table configure $inner r* c* -resize none
2040	blt::table configure $inner r9 c4 -resize expand
2041	}
2042
2043
2044
2045	#
2046	# camera --
2047	#
2048	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2049	switch -- $option {
2050	"show" {
2051	puts [array get _view]
2052	}
2053	"set" {
2054	set who [lindex $args 0]
2055	set x $_view($who)
2056	set code [catch { string is double $x } result]
2057	if { $code != 0 \|\| !$result } {
2058	return
2059	}
2060	switch -- $who {
2061	"ortho" {
2062	if {$_view(ortho)} {
2063	SendCmd "camera mode ortho"
2064	} else {
2065	SendCmd "camera mode persp"
2066	}
2067	}
2068	"xpan" - "ypan" {
2069	PanCamera
2070	}
2071	"qx" - "qy" - "qz" - "qw" {
2072	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2073	$_arcball quaternion $q
2074	EventuallyRotate $q
2075	}
2076	"zoom" {
2077	SendCmd "camera zoom $_view(zoom)"
2078	}
2079	}
2080	}
2081	}
2082	}
2083
2084	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2085	set bytes ""
2086	foreach dataobj [get] {
2087	foreach cname [$dataobj components] {
2088	set tag $dataobj-$cname
2089	set contents [$dataobj vtkdata $cname]
2090	append bytes "$contents\n"
2091	}
2092	}
2093	return [list .vtk $bytes]
2094	}
2095
2096	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2097	if { [image width $_image(download)] > 0 &&
2098	[image height $_image(download)] > 0 } {
2099	set bytes [$_image(download) data -format "jpeg -quality 100"]
2100	set bytes [Rappture::encoding::decode -as b64 $bytes]
2101	return [list .jpg $bytes]
2102	}
2103	return ""
2104	}
2105
2106	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2107	Rappture::Balloon $popup \
2108	-title "[Rappture::filexfer::label downloadWord] as..."
2109	set inner [$popup component inner]
2110	label $inner.summary -text "" -anchor w
2111	radiobutton $inner.vtk_button -text "VTK data file" \
2112	-variable [itcl::scope _downloadPopup(format)] \
2113	-font "Arial 9 " \
2114	-value vtk
2115	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2116	radiobutton $inner.image_button -text "Image File" \
2117	-variable [itcl::scope _downloadPopup(format)] \
2118	-font "Arial 9 " \
2119	-value image
2120	Rappture::Tooltip::for $inner.image_button \
2121	"Save as digital image."
2122
2123	button $inner.ok -text "Save" \
2124	-highlightthickness 0 -pady 2 -padx 3 \
2125	-command $command \
2126	-compound left \
2127	-image [Rappture::icon download]
2128
2129	button $inner.cancel -text "Cancel" \
2130	-highlightthickness 0 -pady 2 -padx 3 \
2131	-command [list $popup deactivate] \
2132	-compound left \
2133	-image [Rappture::icon cancel]
2134
2135	blt::table $inner \
2136	0,0 $inner.summary -cspan 2 \
2137	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2138	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2139	4,1 $inner.cancel -width .9i -fill y \
2140	4,0 $inner.ok -padx 2 -width .9i -fill y
2141	blt::table configure $inner r3 -height 4
2142	blt::table configure $inner r4 -pady 4
2143	raise $inner.image_button
2144	$inner.vtk_button invoke
2145	return $inner
2146	}
2147
2148	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2149	# Parse style string.
2150	set tag $dataobj-$comp
2151	array set style {
2152	-color BCGYR
2153	-cutplanesvisible 0
2154	-edgecolor black
2155	-edges 0
2156	-isosurfacevisible 1
2157	-levels 10
2158	-lighting 1
2159	-linewidth 1.0
2160	-opacity 0.6
2161	-outline 0
2162	-wireframe 0
2163	-xcutplaneposition 50
2164	-xcutplanevisible 1
2165	-ycutplaneposition 50
2166	-ycutplanevisible 1
2167	-zcutplaneposition 50
2168	-zcutplanevisible 1
2169	}
2170	array set style [$dataobj style $comp]
2171	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2172	set style(-opacity) 1
2173	}
2174
2175	# This is too complicated. We want to set the colormap, number of
2176	# isolines and opacity for the dataset. They can be the default values,
2177	# the style hints loaded with the dataset, or set by user controls. As
2178	# datasets get loaded, they first use the defaults that are overidden
2179	# by the style hints. If the user changes the global controls, then that
2180	# overrides everything else. I don't know what it means when global
2181	# controls are specified as style hints by each dataset. It complicates
2182	# the code to handle aberrant cases.
2183
2184	if { $_changed(-isosurfaceopacity) } {
2185	set style(-opacity) [expr $_settings(-isosurfaceopacity) * 0.01]
2186	}
2187	if { $_changed(-numcontours) } {
2188	set style(-levels) $_settings(-numcontours)
2189	}
2190	if { $_changed(-colormap) } {
2191	set style(-color) $_settings(-colormap)
2192	}
2193	if { $_currentColormap == "" } {
2194	SetCurrentColormap $style(-color)
2195	$itk_component(colormap) value $style(-color)
2196	}
2197	if { $_contourList(numLevels) != $style(-levels) } {
2198	set _settings(-numcontours) $style(-levels)
2199	$itk_component(numcontours) value $style(-levels)
2200	set _contourList(numLevels) $style(-levels)
2201	EventuallyChangeContourLevels
2202	}
2203	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
2204	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
2205	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
2206	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
2207	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
2208	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
2209	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
2210	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
2211
2212	SendCmd "cutplane add $tag"
2213	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2214
2215	SendCmd "outline add $tag"
2216	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2217	SendCmd "outline visible $style(-outline) $tag"
2218	set _settings(-outline) $style(-outline)
2219
2220	GenerateContourList
2221	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2222	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2223	SendCmd "contour3d edges $style(-edges) $tag"
2224	set _settings(-isosurfaceedges) $style(-edges)
2225	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2226	SendCmd "contour3d lighting $style(-lighting) $tag"
2227	set _settings(-isosurfacelighting) $style(-lighting)
2228	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2229	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2230	SendCmd "contour3d opacity $style(-opacity) $tag"
2231	set _settings(-isosurfaceopacity) [expr $style(-opacity) * 100.0]
2232	SetCurrentColormap $style(-color)
2233	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2234	set _settings(-isosurfacewireframe) $style(-wireframe)
2235	}
2236
2237	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2238	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2239	return 0
2240	}
2241	return 1
2242	}
2243
2244	#
2245	# EnterLegend --
2246	#
2247	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2248	SetLegendTip $x $y
2249	}
2250
2251	#
2252	# MotionLegend --
2253	#
2254	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2255	Rappture::Tooltip::tooltip cancel
2256	set c $itk_component(view)
2257	set cw [winfo width $c]
2258	set ch [winfo height $c]
2259	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2260	SetLegendTip $x $y
2261	}
2262	}
2263
2264	#
2265	# LeaveLegend --
2266	#
2267	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2268	Rappture::Tooltip::tooltip cancel
2269	.rappturetooltip configure -icon ""
2270	}
2271
2272	#
2273	# SetLegendTip --
2274	#
2275	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2276	set fname $_curFldName
2277	set c $itk_component(view)
2278	set w [winfo width $c]
2279	set h [winfo height $c]
2280
2281	set font "Arial 8"
2282	set lineht [font metrics $font -linespace]
2283
2284	set ih [image height $_image(legend)]
2285	set iy [expr $y - ($lineht + 2)]
2286
2287	if { [string match "component*" $fname] } {
2288	set title ""
2289	} else {
2290	if { [info exists _fields($fname)] } {
2291	foreach { title units } $_fields($fname) break
2292	if { $units != "" } {
2293	set title [format "%s (%s)" $title $units]
2294	}
2295	} else {
2296	set title $fname
2297	}
2298	}
2299	# If there's a legend title, increase the offset by the line height.
2300	if { $title != "" } {
2301	incr iy -$lineht
2302	}
2303	# Make a swatch of the selected color
2304	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2305	return
2306	}
2307	if { ![info exists _image(swatch)] } {
2308	set _image(swatch) [image create photo -width 24 -height 24]
2309	}
2310	set color [eval format "\#%02x%02x%02x" $pixel]
2311	$_image(swatch) put black -to 0 0 23 23
2312	$_image(swatch) put $color -to 1 1 22 22
2313	.rappturetooltip configure -icon $_image(swatch)
2314
2315	# Compute the value of the point
2316	if { [info exists _limits($_curFldName)] } {
2317	foreach { vmin vmax } $_limits($_curFldName) break
2318	set t [expr 1.0 - (double($iy) / double($ih-1))]
2319	set value [expr $t * ($vmax - $vmin) + $vmin]
2320	} else {
2321	set value 0.0
2322	}
2323	set tx [expr $x + 15]
2324	set ty [expr $y - 5]
2325	if { [info exists _isolines($y)] } {
2326	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2327	} else {
2328	Rappture::Tooltip::text $c [format "$title %g" $value]
2329	}
2330	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2331	}
2332
2333
2334	# ----------------------------------------------------------------------
2335	# USAGE: Slice move x\|y\|z <newval>
2336	#
2337	# Called automatically when the user drags the slider to move the
2338	# cut plane that slices 3D data. Gets the current value from the
2339	# slider and moves the cut plane to the appropriate point in the
2340	# data set.
2341	# ----------------------------------------------------------------------
2342	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2343	switch -- $option {
2344	"move" {
2345	set axis [lindex $args 0]
2346	set newval [lindex $args 1]
2347	if {[llength $args] != 2} {
2348	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2349	}
2350	set newpos [expr {0.01*$newval}]
2351	SendCmd "cutplane slice $axis $newpos"
2352	}
2353	"tooltip" {
2354	set axis [lindex $args 0]
2355	set val [$itk_component(${axis}position) get]
2356	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2357	}
2358	default {
2359	error "bad option \"$option\": should be axis, move, or tooltip"
2360	}
2361	}
2362	}
2363
2364	#
2365	# ReceiveLegend --
2366	#
2367	# Invoked automatically whenever the "legend" command comes in from
2368	# the rendering server. Indicates that binary image data with the
2369	# specified <size> will follow.
2370	#
2371	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2372	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2373	set _title $title
2374	regsub {\(mag\)} $title "" _title
2375	if { [IsConnected] } {
2376	set bytes [ReceiveBytes $size]
2377	if { ![info exists _image(legend)] } {
2378	set _image(legend) [image create photo]
2379	}
2380	$_image(legend) configure -data $bytes
2381	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2382	if { [catch {DrawLegend} errs] != 0 } {
2383	global errorInfo
2384	puts stderr "errs=$errs errorInfo=$errorInfo"
2385	}
2386	}
2387	}
2388
2389	#
2390	# DrawLegend --
2391	#
2392	# Draws the legend in the own canvas on the right side of the plot area.
2393	#
2394	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2395	set fname $_curFldName
2396	set c $itk_component(view)
2397	set w [winfo width $c]
2398	set h [winfo height $c]
2399	set font "Arial 8"
2400	set lineht [font metrics $font -linespace]
2401
2402	if { [string match "component*" $fname] } {
2403	set title ""
2404	} else {
2405	if { [info exists _fields($fname)] } {
2406	foreach { title units } $_fields($fname) break
2407	if { $units != "" } {
2408	set title [format "%s (%s)" $title $units]
2409	}
2410	} else {
2411	set title $fname
2412	}
2413	}
2414	set x [expr $w - 2]
2415	if { !$_settings(-legendvisible) } {
2416	$c delete legend
2417	return
2418	}
2419	if { [$c find withtag "legend"] == "" } {
2420	set y 2
2421	# If there's a legend title, create a text item for the title.
2422	$c create text $x $y \
2423	-anchor ne \
2424	-fill $itk_option(-plotforeground) -tags "title legend" \
2425	-font $font
2426	if { $title != "" } {
2427	incr y $lineht
2428	}
2429	$c create text $x $y \
2430	-anchor ne \
2431	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2432	-font $font
2433	incr y $lineht
2434	$c create image $x $y \
2435	-anchor ne \
2436	-image $_image(legend) -tags "colormap legend"
2437	$c create rectangle $x $y 1 1 \
2438	-fill "" -outline "" -tags "sensor legend"
2439	$c create text $x [expr {$h-2}] \
2440	-anchor se \
2441	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2442	-font $font
2443	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2444	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2445	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2446	}
2447	$c delete isoline
2448	set x2 $x
2449	set iw [image width $_image(legend)]
2450	set ih [image height $_image(legend)]
2451	set x1 [expr $x2 - ($iw*12)/10]
2452	set color $_settings(-isolinecolor)
2453	# Draw the isolines on the legend.
2454	array unset _isolines
2455	if { $color != "none" && [info exists _limits($_curFldName)] &&
2456	$_settings(-numcontours) > 0 } {
2457
2458	foreach { vmin vmax } $_limits($_curFldName) break
2459	set range [expr double($vmax - $vmin)]
2460	if { $range <= 0.0 } {
2461	set range 1.0; # Min is greater or equal to max.
2462	}
2463	set tags "isoline legend"
2464	set offset [expr 2 + $lineht]
2465	if { $title != "" } {
2466	incr offset $lineht
2467	}
2468	foreach value $_contourList(values) {
2469	set norm [expr 1.0 - (($value - $vmin) / $range)]
2470	set y1 [expr int(round(($norm * $ih) + $offset))]
2471	for { set off 0 } { $off < 3 } { incr off } {
2472	set _isolines([expr $y1 + $off]) $value
2473	set _isolines([expr $y1 - $off]) $value
2474	}
2475	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2476	}
2477	}
2478
2479	$c bind title <ButtonPress> [itcl::code $this Combo post]
2480	$c bind title <Enter> [itcl::code $this Combo activate]
2481	$c bind title <Leave> [itcl::code $this Combo deactivate]
2482	# Reset the item coordinates according the current size of the plot.
2483	$c itemconfigure title -text $title
2484	if { [info exists _limits($_curFldName)] } {
2485	foreach { vmin vmax } $_limits($_curFldName) break
2486	$c itemconfigure vmin -text [format %g $vmin]
2487	$c itemconfigure vmax -text [format %g $vmax]
2488	}
2489	set y 2
2490	# If there's a legend title, move the title to the correct position
2491	if { $title != "" } {
2492	$c itemconfigure title -text $title
2493	$c coords title $x $y
2494	incr y $lineht
2495	$c raise title
2496	}
2497	$c coords vmax $x $y
2498	incr y $lineht
2499	$c coords colormap $x $y
2500	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2501	$c raise sensor
2502	$c coords vmin $x [expr {$h - 2}]
2503	}
2504
2505	# ----------------------------------------------------------------------
2506	# USAGE: _dropdown post
2507	# USAGE: _dropdown unpost
2508	# USAGE: _dropdown select
2509	#
2510	# Used internally to handle the dropdown list for this combobox. The
2511	# post/unpost options are invoked when the list is posted or unposted
2512	# to manage the relief of the controlling button. The select option
2513	# is invoked whenever there is a selection from the list, to assign
2514	# the value back to the gauge.
2515	# ----------------------------------------------------------------------
2516	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2517	set c $itk_component(view)
2518	switch -- $option {
2519	post {
2520	foreach { x1 y1 x2 y2 } [$c bbox title] break
2521	set cw [winfo width $itk_component(view)]
2522	set mw [winfo reqwidth $itk_component(fieldmenu)]
2523	set x1 [expr $cw - $mw]
2524	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2525	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2526	tk_popup $itk_component(fieldmenu) $x $y
2527	}
2528	activate {
2529	$c itemconfigure title -fill red
2530	}
2531	deactivate {
2532	$c itemconfigure title -fill $itk_option(-plotforeground)
2533	}
2534	invoke {
2535	$itk_component(field) value $_curFldLabel
2536	AdjustSetting -field
2537	}
2538	default {
2539	error "bad option \"$option\": should be post, unpost, select"
2540	}
2541	}
2542	}
2543
2544	#
2545	# SetCurrentColormap --
2546	#
2547	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
2548	# Keep track of the colormaps that we build.
2549	if { ![info exists _colormaps($name)] } {
2550	BuildColormap $name
2551	set _colormaps($name) 1
2552	}
2553	set _currentColormap $name
2554	SendCmd "contour3d colormap $_currentColormap"
2555	SendCmd "cutplane colormap $_currentColormap"
2556	}
2557
2558	#
2559	# BuildColormap --
2560	#
2561	# Build the designated colormap on the server.
2562	#
2563	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
2564	set cmap [ColorsToColormap $name]
2565	if { [llength $cmap] == 0 } {
2566	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2567	}
2568	set wmap "0.0 1.0 1.0 1.0"
2569	SendCmd "colormap add $name { $cmap } { $wmap }"
2570	}
2571
2572	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
2573	array set positions {
2574	front "1 0 0 0"
2575	back "0 0 1 0"
2576	left "0.707107 0 -0.707107 0"
2577	right "0.707107 0 0.707107 0"
2578	top "0.707107 -0.707107 0 0"
2579	bottom "0.707107 0.707107 0 0"
2580	}
2581	foreach name { qw qx qy qz } value $positions($side) {
2582	set _view($name) $value
2583	}
2584	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2585	$_arcball quaternion $q
2586	SendCmd "camera orient $q"
2587	SendCmd "camera reset"
2588	set _view(xpan) 0
2589	set _view(ypan) 0
2590	set _view(zoom) 1.0
2591	}
2592
2593	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
2594	if { ![info exists _limits($_curFldName)] } {
2595	return ""
2596	}
2597	if { $_contourList(numLevels) < 1 } {
2598	return ""
2599	}
2600	foreach { vmin vmax } $_limits($_curFldName) break
2601	set v [blt::vector create \#auto]
2602	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
2603	$v delete end 0
2604	set values [$v range 0 end]
2605	blt::vector destroy $v
2606	set _contourList(values) $values
2607	}

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