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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 4470

Last change on this file since 4470 was 4470, checked in by ldelgass, 10 years ago
remove debugging print
File size: 88.5 KB

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

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