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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 4429

Last change on this file since 4429 was 4429, checked in by ldelgass, 10 years ago
Rename isosurfaceoutline setting to outline
File size: 89.7 KB

Line
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	private variable _currentOpacity ""
125
126	private variable _dataset2style ;# maps dataobj-component to transfunc
127
128	private variable _click ; # info used for rotate operations
129	private variable _limits ; # autoscale min/max for all axes
130	private variable _view ; # view params for 3D view
131	private variable _settings
132	private variable _style; # Array of current component styles.
133	private variable _changed
134	private variable _initialStyle; # Array of initial component styles.
135	private variable _reset 1; # indicates if camera needs to be reset
136	# to starting position.
137
138	private variable _first "" ; # This is the topmost dataset.
139	private variable _start 0
140	private variable _title ""
141	private variable _isolines
142	private variable _contourList
143	private variable _currentLimits ""
144	common _downloadPopup; # download options from popup
145	private common _hardcopy
146	private variable _width 0
147	private variable _height 0
148	private variable _resizePending 0
149	private variable _rotatePending 0
150	private variable _cutplanePending 0
151	private variable _legendPending 0
152	private variable _field ""
153	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
154	private variable _fieldNames {}
155	private variable _fields
156	private variable _curFldName ""
157	private variable _curFldLabel ""
158	}
159
160	itk::usual VtkIsosurfaceViewer {
161	keep -background -foreground -cursor -font
162	keep -plotbackground -plotforeground
163	}
164
165	# ----------------------------------------------------------------------
166	# CONSTRUCTOR
167	# ----------------------------------------------------------------------
168	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
169	package require vtk
170	set _serverType "vtkvis"
171
172	# Rebuild event
173	$_dispatcher register !rebuild
174	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
175
176	# Resize event
177	$_dispatcher register !resize
178	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
179
180	# Rotate event
181	$_dispatcher register !rotate
182	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
183
184	# Legend event
185	$_dispatcher register !legend
186	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
187
188	# Contour levels event
189	$_dispatcher register !contours
190	$_dispatcher dispatch $this !contours \
191	"[itcl::code $this DoChangeContourLevels]; list"
192
193	# X-Cutplane event
194	$_dispatcher register !xcutplane
195	$_dispatcher dispatch $this !xcutplane \
196	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
197
198	# Y-Cutplane event
199	$_dispatcher register !ycutplane
200	$_dispatcher dispatch $this !ycutplane \
201	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
202
203	# Z-Cutplane event
204	$_dispatcher register !zcutplane
205	$_dispatcher dispatch $this !zcutplane \
206	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
207
208	#
209	# Populate parser with commands handle incoming requests
210	#
211	$_parser alias image [itcl::code $this ReceiveImage]
212	$_parser alias dataset [itcl::code $this ReceiveDataset]
213	$_parser alias legend [itcl::code $this ReceiveLegend]
214
215	# Initialize the view to some default parameters.
216	array set _view {
217	qw 0.853553
218	qx -0.353553
219	qy 0.353553
220	qz 0.146447
221	zoom 1.0
222	xpan 0
223	ypan 0
224	ortho 0
225	}
226	set _arcball [blt::arcball create 100 100]
227	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
228	$_arcball quaternion $q
229
230	array set _contourList {
231	numLevels 10
232	reqValues ""
233	updatePending 0
234	values ""
235	}
236	array set _settings {
237	-axesvisible 1
238	-axislabelsvisible 1
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	-isosurfaceopacity 0
270	-colormap 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	"Don't display 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/Hide 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	update
457	}
458
459	# ----------------------------------------------------------------------
460	# DESTRUCTOR
461	# ----------------------------------------------------------------------
462	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
463	Disconnect
464	image delete $_image(plot)
465	image delete $_image(download)
466	catch { blt::arcball destroy $_arcball }
467	}
468
469	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
470	if { $_width < 2 } {
471	set _width 500
472	}
473	if { $_height < 2 } {
474	set _height 500
475	}
476	set _start [clock clicks -milliseconds]
477	SendCmd "screen size $_width $_height"
478
479	EventuallyRequestLegend
480	set _resizePending 0
481	}
482
483	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
484	GenerateContourList
485	SendCmd [list contour3d contourlist $_contourList(values)]
486	#SendCmd [list camera reset]
487	DrawLegend
488	set _contourList(updatePending) 0
489	}
490
491	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
492	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
493	SendCmd "camera orient $q"
494	set _rotatePending 0
495	}
496
497	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
498	if { !$_legendPending } {
499	set _legendPending 1
500	$_dispatcher event -idle !legend
501	}
502	}
503
504	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
505	set _width $w
506	set _height $h
507	$_arcball resize $w $h
508	if { !$_resizePending } {
509	set _resizePending 1
510	$_dispatcher event -after 400 !resize
511	}
512	}
513
514	set rotate_delay 100
515
516	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
517	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
518	if { !$_rotatePending } {
519	set _rotatePending 1
520	global rotate_delay
521	$_dispatcher event -after $rotate_delay !rotate
522	}
523	}
524
525	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
526	if { !$_cutplanePending } {
527	set _cutplanePending 1
528	$_dispatcher event -after 100 !${axis}cutplane
529	}
530	}
531
532	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
533	set n $_contourList(numLevels)
534	set _contourList(values) ""
535	if { !$_contourList(updatePending) } {
536	set _contourList(updatePending) 1
537	global rotate_delay
538	$_dispatcher event -after $rotate_delay !contours
539	}
540	}
541
542	# ----------------------------------------------------------------------
543	# USAGE: add <dataobj> ?<settings>?
544	#
545	# Clients use this to add a data object to the plot. The optional
546	# <settings> are used to configure the plot. Allowed settings are
547	# -color, -brightness, -width, -linestyle, and -raise.
548	# ----------------------------------------------------------------------
549	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
550	if { ![$dataobj isvalid] } {
551	return; # Object doesn't contain valid data.
552	}
553	array set params {
554	-color auto
555	-width 1
556	-linestyle solid
557	-brightness 0
558	-raise 0
559	-description ""
560	-param ""
561	-type ""
562	}
563	array set params $settings
564	set params(-description) ""
565	set params(-param) ""
566	array set params $settings
567
568	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
569	# can't handle -autocolors yet
570	set params(-color) black
571	}
572	set pos [lsearch -exact $_dlist $dataobj]
573	if {$pos < 0} {
574	lappend _dlist $dataobj
575	}
576	set _obj2ovride($dataobj-color) $params(-color)
577	set _obj2ovride($dataobj-width) $params(-width)
578	set _obj2ovride($dataobj-raise) $params(-raise)
579	$_dispatcher event -idle !rebuild
580	}
581
582
583	# ----------------------------------------------------------------------
584	# USAGE: delete ?<dataobj1> <dataobj2> ...?
585	#
586	# Clients use this to delete a dataobj from the plot. If no dataobjs
587	# are specified, then all dataobjs are deleted. No data objects are
588	# deleted. They are only removed from the display list.
589	#
590	# ----------------------------------------------------------------------
591	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
592	if { [llength $args] == 0} {
593	set args $_dlist
594	}
595	# Delete all specified dataobjs
596	set changed 0
597	foreach dataobj $args {
598	set pos [lsearch -exact $_dlist $dataobj]
599	if { $pos < 0 } {
600	continue; # Don't know anything about it.
601	}
602	# Remove it from the dataobj list.
603	set _dlist [lreplace $_dlist $pos $pos]
604	array unset _obj2ovride $dataobj-*
605	array unset _settings $dataobj-*
606	set changed 1
607	}
608	# If anything changed, then rebuild the plot
609	if { $changed } {
610	$_dispatcher event -idle !rebuild
611	}
612	}
613
614	# ----------------------------------------------------------------------
615	# USAGE: get ?-objects?
616	# USAGE: get ?-visible?
617	# USAGE: get ?-image view?
618	#
619	# Clients use this to query the list of objects being plotted, in
620	# order from bottom to top of this result. The optional "-image"
621	# flag can also request the internal images being shown.
622	# ----------------------------------------------------------------------
623	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
624	if {[llength $args] == 0} {
625	set args "-objects"
626	}
627
628	set op [lindex $args 0]
629	switch -- $op {
630	"-objects" {
631	# put the dataobj list in order according to -raise options
632	set dlist {}
633	foreach dataobj $_dlist {
634	if { ![IsValidObject $dataobj] } {
635	continue
636	}
637	if {[info exists _obj2ovride($dataobj-raise)] &&
638	$_obj2ovride($dataobj-raise)} {
639	set dlist [linsert $dlist 0 $dataobj]
640	} else {
641	lappend dlist $dataobj
642	}
643	}
644	return $dlist
645	}
646	"-visible" {
647	set dlist {}
648	foreach dataobj $_dlist {
649	if { ![IsValidObject $dataobj] } {
650	continue
651	}
652	if { ![info exists _obj2ovride($dataobj-raise)] } {
653	# No setting indicates that the object isn't visible.
654	continue
655	}
656	# Otherwise use the -raise parameter to put the object to
657	# the front of the list.
658	if { $_obj2ovride($dataobj-raise) } {
659	set dlist [linsert $dlist 0 $dataobj]
660	} else {
661	lappend dlist $dataobj
662	}
663	}
664	return $dlist
665	}
666	-image {
667	if {[llength $args] != 2} {
668	error "wrong # args: should be \"get -image view\""
669	}
670	switch -- [lindex $args end] {
671	view {
672	return $_image(plot)
673	}
674	default {
675	error "bad image name \"[lindex $args end]\": should be view"
676	}
677	}
678	}
679	default {
680	error "bad option \"$op\": should be -objects or -image"
681	}
682	}
683	}
684
685	# ----------------------------------------------------------------------
686	# USAGE: scale ?<data1> <data2> ...?
687	#
688	# Sets the default limits for the overall plot according to the
689	# limits of the data for all of the given <data> objects. This
690	# accounts for all objects--even those not showing on the screen.
691	# Because of this, the limits are appropriate for all objects as
692	# the user scans through data in the ResultSet viewer.
693	# ----------------------------------------------------------------------
694	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
695	foreach dataobj $args {
696	if { ![$dataobj isvalid] } {
697	continue; # Object doesn't contain valid data.
698	}
699	foreach axis { x y z } {
700	set lim [$dataobj limits $axis]
701	if { ![info exists _limits($axis)] } {
702	set _limits($axis) $lim
703	continue
704	}
705	foreach {min max} $lim break
706	foreach {amin amax} $_limits($axis) break
707	if { $amin > $min } {
708	set amin $min
709	}
710	if { $amax < $max } {
711	set amax $max
712	}
713	set _limits($axis) [list $amin $amax]
714	}
715	foreach { fname lim } [$dataobj fieldlimits] {
716	if { ![info exists _limits($fname)] } {
717	set _limits($fname) $lim
718	continue
719	}
720	foreach {min max} $lim break
721	foreach {fmin fmax} $_limits($fname) break
722	if { $fmin > $min } {
723	set fmin $min
724	}
725	if { $fmax < $max } {
726	set fmax $max
727	}
728	set _limits($fname) [list $fmin $fmax]
729	}
730	}
731	}
732
733	# ----------------------------------------------------------------------
734	# USAGE: download coming
735	# USAGE: download controls <downloadCommand>
736	# USAGE: download now
737	#
738	# Clients use this method to create a downloadable representation
739	# of the plot. Returns a list of the form {ext string}, where
740	# "ext" is the file extension (indicating the type of data) and
741	# "string" is the data itself.
742	# ----------------------------------------------------------------------
743	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
744	switch $option {
745	coming {
746	if {[catch {
747	blt::winop snap $itk_component(plotarea) $_image(download)
748	}]} {
749	$_image(download) configure -width 1 -height 1
750	$_image(download) put #000000
751	}
752	}
753	controls {
754	set popup .vtkviewerdownload
755	if { ![winfo exists .vtkviewerdownload] } {
756	set inner [BuildDownloadPopup $popup [lindex $args 0]]
757	} else {
758	set inner [$popup component inner]
759	}
760	set _downloadPopup(image_controls) $inner.image_frame
761	set num [llength [get]]
762	set num [expr {($num == 1) ? "1 result" : "$num results"}]
763	set word [Rappture::filexfer::label downloadWord]
764	$inner.summary configure -text "$word $num in the following format:"
765	update idletasks ;# Fix initial sizes
766	return $popup
767	}
768	now {
769	set popup .vtkviewerdownload
770	if {[winfo exists .vtkviewerdownload]} {
771	$popup deactivate
772	}
773	switch -- $_downloadPopup(format) {
774	"image" {
775	return [$this GetImage [lindex $args 0]]
776	}
777	"vtk" {
778	return [$this GetVtkData [lindex $args 0]]
779	}
780	}
781	return ""
782	}
783	default {
784	error "bad option \"$option\": should be coming, controls, now"
785	}
786	}
787	}
788
789	# ----------------------------------------------------------------------
790	# USAGE: Connect ?<host:port>,<host:port>...?
791	#
792	# Clients use this method to establish a connection to a new
793	# server, or to reestablish a connection to the previous server.
794	# Any existing connection is automatically closed.
795	# ----------------------------------------------------------------------
796	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
797	set _hosts [GetServerList "vtkvis"]
798	if { "" == $_hosts } {
799	return 0
800	}
801	set result [VisViewer::Connect $_hosts]
802	if { $result } {
803	if { $_reportClientInfo } {
804	# Tell the server the viewer, hub, user and session.
805	# Do this immediately on connect before buffering any commands
806	global env
807
808	set info {}
809	set user "???"
810	if { [info exists env(USER)] } {
811	set user $env(USER)
812	}
813	set session "???"
814	if { [info exists env(SESSION)] } {
815	set session $env(SESSION)
816	}
817	lappend info "hub" [exec hostname]
818	lappend info "client" "vtkisosurfaceviewer"
819	lappend info "user" $user
820	lappend info "session" $session
821	SendCmd "clientinfo [list $info]"
822	}
823
824	set w [winfo width $itk_component(view)]
825	set h [winfo height $itk_component(view)]
826	EventuallyResize $w $h
827	}
828	return $result
829	}
830
831	#
832	# isconnected --
833	#
834	# Indicates if we are currently connected to the visualization server.
835	#
836	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
837	return [VisViewer::IsConnected]
838	}
839
840	#
841	# disconnect --
842	#
843	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
844	Disconnect
845	set _reset 1
846	}
847
848	#
849	# Disconnect --
850	#
851	# Clients use this method to disconnect from the current rendering
852	# server.
853	#
854	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
855	VisViewer::Disconnect
856
857	$_dispatcher cancel !rebuild
858	$_dispatcher cancel !resize
859	$_dispatcher cancel !rotate
860	$_dispatcher cancel !xcutplane
861	$_dispatcher cancel !ycutplane
862	$_dispatcher cancel !zcutplane
863	$_dispatcher cancel !legend
864	# disconnected -- no more data sitting on server
865	set _outbuf ""
866	array unset _datasets
867	array unset _data
868	array unset _colormaps
869	array unset _seeds
870	array unset _dataset2style
871	array unset _obj2datasets
872	}
873
874	# ----------------------------------------------------------------------
875	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
876	#
877	# Invoked automatically whenever the "image" command comes in from
878	# the rendering server. Indicates that binary image data with the
879	# specified <size> will follow.
880	# ----------------------------------------------------------------------
881	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
882	array set info {
883	-token "???"
884	-bytes 0
885	-type image
886	}
887	array set info $args
888	set bytes [ReceiveBytes $info(-bytes)]
889	if { $info(-type) == "image" } {
890	if 0 {
891	set f [open "last.ppm" "w"]
892	puts $f $bytes
893	close $f
894	}
895	$_image(plot) configure -data $bytes
896	#set time [clock seconds]
897	#set date [clock format $time]
898	#set w [image width $_image(plot)]
899	#set h [image height $_image(plot)]
900	#puts stderr "$date: received image ${w}x${h} image"
901	if { $_start > 0 } {
902	set finish [clock clicks -milliseconds]
903	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
904	set _start 0
905	}
906	} elseif { $info(type) == "print" } {
907	set tag $this-print-$info(-token)
908	set _hardcopy($tag) $bytes
909	}
910	}
911
912	#
913	# ReceiveDataset --
914	#
915	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
916	if { ![isconnected] } {
917	return
918	}
919	set option [lindex $args 0]
920	switch -- $option {
921	"scalar" {
922	set option [lindex $args 1]
923	switch -- $option {
924	"world" {
925	foreach { x y z value tag } [lrange $args 2 end] break
926	}
927	"pixel" {
928	foreach { x y value tag } [lrange $args 2 end] break
929	}
930	}
931	}
932	"vector" {
933	set option [lindex $args 1]
934	switch -- $option {
935	"world" {
936	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
937	}
938	"pixel" {
939	foreach { x y vx vy vz tag } [lrange $args 2 end] break
940	}
941	}
942	}
943	"names" {
944	foreach { name } [lindex $args 1] {
945	#puts stderr "Dataset: $name"
946	}
947	}
948	default {
949	error "unknown dataset option \"$option\" from server"
950	}
951	}
952	}
953
954	# ----------------------------------------------------------------------
955	# USAGE: Rebuild
956	#
957	# Called automatically whenever something changes that affects the
958	# data in the widget. Clears any existing data and rebuilds the
959	# widget to display new data.
960	# ----------------------------------------------------------------------
961	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
962	set w [winfo width $itk_component(view)]
963	set h [winfo height $itk_component(view)]
964	if { $w < 2 \|\| $h < 2 } {
965	$_dispatcher event -idle !rebuild
966	return
967	}
968
969	# Turn on buffering of commands to the server. We don't want to
970	# be preempted by a server disconnect/reconnect (which automatically
971	# generates a new call to Rebuild).
972	StartBufferingCommands
973
974	if { $_reset } {
975	set _width $w
976	set _height $h
977	$_arcball resize $w $h
978	DoResize
979	#
980	# Reset the camera and other view parameters
981	#
982	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
983	$_arcball quaternion $q
984	if {$_view(ortho)} {
985	SendCmd "camera mode ortho"
986	} else {
987	SendCmd "camera mode persp"
988	}
989	DoRotate
990	PanCamera
991	set _first ""
992	InitSettings -xgrid -ygrid -zgrid -axismode \
993	-axesvisible -axislabelsvisible
994	foreach axis { x y z } {
995	SendCmd "axis lformat $axis %g"
996	}
997	StopBufferingCommands
998	SendCmd "imgflush"
999	StartBufferingCommands
1000	}
1001	set _first ""
1002	SendCmd "dataset visible 0"
1003	foreach dataobj [get -objects] {
1004	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1005	set _first $dataobj
1006	}
1007	set _obj2datasets($dataobj) ""
1008	foreach comp [$dataobj components] {
1009	set tag $dataobj-$comp
1010	if { ![info exists _datasets($tag)] } {
1011	set bytes [$dataobj vtkdata $comp]
1012	if 0 {
1013	set f [open "/tmp/isosurface.vtk" "w"]
1014	puts $f $bytes
1015	close $f
1016	}
1017	set length [string length $bytes]
1018	if { $_reportClientInfo } {
1019	set info {}
1020	lappend info "tool_id" [$dataobj hints toolId]
1021	lappend info "tool_name" [$dataobj hints toolName]
1022	lappend info "tool_version" [$dataobj hints toolRevision]
1023	lappend info "tool_title" [$dataobj hints toolTitle]
1024	lappend info "dataset_label" [$dataobj hints label]
1025	lappend info "dataset_size" $length
1026	lappend info "dataset_tag" $tag
1027	SendCmd "clientinfo [list $info]"
1028	}
1029	append _outbuf "dataset add $tag data follows $length\n"
1030	append _outbuf $bytes
1031	set _datasets($tag) 1
1032	SetObjectStyle $dataobj $comp
1033	}
1034	lappend _obj2datasets($dataobj) $tag
1035	if { [info exists _obj2ovride($dataobj-raise)] } {
1036	SendCmd "contour3d visible 1 $tag"
1037	}
1038	}
1039	}
1040
1041	if { $_first != "" } {
1042	$itk_component(field) choices delete 0 end
1043	$itk_component(fieldmenu) delete 0 end
1044	array unset _fields
1045	set _curFldName ""
1046	foreach cname [$_first components] {
1047	foreach fname [$_first fieldnames $cname] {
1048	if { [info exists _fields($fname)] } {
1049	continue
1050	}
1051	foreach { label units components } \
1052	[$_first fieldinfo $fname] break
1053	$itk_component(field) choices insert end "$fname" "$label"
1054	$itk_component(fieldmenu) add radiobutton -label "$label" \
1055	-value $label -variable [itcl::scope _curFldLabel] \
1056	-selectcolor red \
1057	-activebackground $itk_option(-plotbackground) \
1058	-activeforeground $itk_option(-plotforeground) \
1059	-font "Arial 8" \
1060	-command [itcl::code $this Combo invoke]
1061	set _fields($fname) [list $label $units $components]
1062	if { $_curFldName == "" } {
1063	set _curFldName $fname
1064	set _curFldLabel $label
1065	}
1066	}
1067	}
1068	$itk_component(field) value $_curFldLabel
1069
1070	if { ![info exists _limits($_curFldName)] } {
1071	SendCmd "dataset maprange all"
1072	} else {
1073	set limits $_limits($_curFldName)
1074	SendCmd "dataset maprange explicit $limits $_curFldName"
1075	if { $limits != $_currentLimits } {
1076	set _currentLimits $limits
1077	EventuallyChangeContourLevels
1078	}
1079	}
1080	}
1081	InitSettings -cutplanesvisible -isosurfacevisible -outline
1082	if { $_reset } {
1083	# These are settings that rely on a dataset being loaded.
1084	InitSettings \
1085	-isosurfacelighting \
1086	-field \
1087	-isosurfacevisible \
1088	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1089	-isosurfacewireframe \
1090	-cutplanesvisible \
1091	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1092	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1093	-cutplanepreinterp -numcontours
1094
1095	Zoom reset
1096	foreach axis { x y z } {
1097	# Another problem fixed by a <view>. We looking into a data
1098	# object for the name of the axes. This should be global to
1099	# the viewer itself.
1100	set label [$_first hints ${axis}label]
1101	if { $label == "" } {
1102	set label [string toupper $axis]
1103	}
1104	# May be a space in the axis label.
1105	SendCmd [list axis name $axis $label]
1106	}
1107	if { [array size _fields] < 2 } {
1108	blt::table forget $itk_component(field) $itk_component(field_l)
1109	}
1110	set _reset 0
1111	}
1112	# Redraw the legend even if we're using the same colormap. The position
1113	# of the isolines may have changed because the range of data changed.
1114	DrawLegend
1115
1116	# Actually write the commands to the server socket. If it fails, we don't
1117	# care. We're finished here.
1118	blt::busy hold $itk_component(hull)
1119	StopBufferingCommands; # Turn off buffering and send commands.
1120	blt::busy release $itk_component(hull)
1121	}
1122
1123	# ----------------------------------------------------------------------
1124	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1125	#
1126	# Returns a list of server IDs for the current datasets being displayed. This
1127	# is normally a single ID, but it might be a list of IDs if the current data
1128	# object has multiple components.
1129	# ----------------------------------------------------------------------
1130	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1131	set flag [lindex $args 0]
1132	switch -- $flag {
1133	"-all" {
1134	if { [llength $args] > 1 } {
1135	error "CurrentDatasets: can't specify dataobj after \"-all\""
1136	}
1137	set dlist [get -objects]
1138	}
1139	"-visible" {
1140	if { [llength $args] > 1 } {
1141	set dlist {}
1142	set args [lrange $args 1 end]
1143	foreach dataobj $args {
1144	if { [info exists _obj2ovride($dataobj-raise)] } {
1145	lappend dlist $dataobj
1146	}
1147	}
1148	} else {
1149	set dlist [get -visible]
1150	}
1151	}
1152	default {
1153	set dlist $args
1154	}
1155	}
1156	set rlist ""
1157	foreach dataobj $dlist {
1158	foreach comp [$dataobj components] {
1159	set tag $dataobj-$comp
1160	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1161	lappend rlist $tag
1162	}
1163	}
1164	}
1165	return $rlist
1166	}
1167
1168	# ----------------------------------------------------------------------
1169	# USAGE: Zoom in
1170	# USAGE: Zoom out
1171	# USAGE: Zoom reset
1172	#
1173	# Called automatically when the user clicks on one of the zoom
1174	# controls for this widget. Changes the zoom for the current view.
1175	# ----------------------------------------------------------------------
1176	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1177	switch -- $option {
1178	"in" {
1179	set _view(zoom) [expr {$_view(zoom)*1.25}]
1180	SendCmd "camera zoom $_view(zoom)"
1181	}
1182	"out" {
1183	set _view(zoom) [expr {$_view(zoom)*0.8}]
1184	SendCmd "camera zoom $_view(zoom)"
1185	}
1186	"reset" {
1187	array set _view {
1188	qw 0.853553
1189	qx -0.353553
1190	qy 0.353553
1191	qz 0.146447
1192	zoom 1.0
1193	xpan 0
1194	ypan 0
1195	}
1196	if { $_first != "" } {
1197	set location [$_first hints camera]
1198	if { $location != "" } {
1199	array set _view $location
1200	}
1201	}
1202	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1203	$_arcball quaternion $q
1204	DoRotate
1205	SendCmd "camera reset"
1206	}
1207	}
1208	}
1209
1210	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1211	set x $_view(xpan)
1212	set y $_view(ypan)
1213	SendCmd "camera pan $x $y"
1214	}
1215
1216
1217	# ----------------------------------------------------------------------
1218	# USAGE: Rotate click <x> <y>
1219	# USAGE: Rotate drag <x> <y>
1220	# USAGE: Rotate release <x> <y>
1221	#
1222	# Called automatically when the user clicks/drags/releases in the
1223	# plot area. Moves the plot according to the user's actions.
1224	# ----------------------------------------------------------------------
1225	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1226	switch -- $option {
1227	"click" {
1228	$itk_component(view) configure -cursor fleur
1229	set _click(x) $x
1230	set _click(y) $y
1231	}
1232	"drag" {
1233	if {[array size _click] == 0} {
1234	Rotate click $x $y
1235	} else {
1236	set w [winfo width $itk_component(view)]
1237	set h [winfo height $itk_component(view)]
1238	if {$w <= 0 \|\| $h <= 0} {
1239	return
1240	}
1241
1242	if {[catch {
1243	# this fails sometimes for no apparent reason
1244	set dx [expr {double($x-$_click(x))/$w}]
1245	set dy [expr {double($y-$_click(y))/$h}]
1246	}]} {
1247	return
1248	}
1249	if { $dx == 0 && $dy == 0 } {
1250	return
1251	}
1252	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1253	EventuallyRotate $q
1254	set _click(x) $x
1255	set _click(y) $y
1256	}
1257	}
1258	"release" {
1259	Rotate drag $x $y
1260	$itk_component(view) configure -cursor ""
1261	catch {unset _click}
1262	}
1263	default {
1264	error "bad option \"$option\": should be click, drag, release"
1265	}
1266	}
1267	}
1268
1269	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1270	foreach tag [CurrentDatasets -visible] {
1271	SendCmdNoSplash "dataset getscalar pixel $x $y $tag"
1272	}
1273	}
1274
1275	# ----------------------------------------------------------------------
1276	# USAGE: $this Pan click x y
1277	# $this Pan drag x y
1278	# $this Pan release x y
1279	#
1280	# Called automatically when the user clicks on one of the zoom
1281	# controls for this widget. Changes the zoom for the current view.
1282	# ----------------------------------------------------------------------
1283	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1284	switch -- $option {
1285	"set" {
1286	set w [winfo width $itk_component(view)]
1287	set h [winfo height $itk_component(view)]
1288	set x [expr $x / double($w)]
1289	set y [expr $y / double($h)]
1290	set _view(xpan) [expr $_view(xpan) + $x]
1291	set _view(ypan) [expr $_view(ypan) + $y]
1292	PanCamera
1293	return
1294	}
1295	"click" {
1296	set _click(x) $x
1297	set _click(y) $y
1298	$itk_component(view) configure -cursor hand1
1299	}
1300	"drag" {
1301	if { ![info exists _click(x)] } {
1302	set _click(x) $x
1303	}
1304	if { ![info exists _click(y)] } {
1305	set _click(y) $y
1306	}
1307	set w [winfo width $itk_component(view)]
1308	set h [winfo height $itk_component(view)]
1309	set dx [expr ($_click(x) - $x)/double($w)]
1310	set dy [expr ($_click(y) - $y)/double($h)]
1311	set _click(x) $x
1312	set _click(y) $y
1313	set _view(xpan) [expr $_view(xpan) - $dx]
1314	set _view(ypan) [expr $_view(ypan) - $dy]
1315	PanCamera
1316	}
1317	"release" {
1318	Pan drag $x $y
1319	$itk_component(view) configure -cursor ""
1320	}
1321	default {
1322	error "unknown option \"$option\": should set, click, drag, or release"
1323	}
1324	}
1325	}
1326
1327	# ----------------------------------------------------------------------
1328	# USAGE: InitSettings <what> ?<value>?
1329	#
1330	# Used internally to update rendering settings whenever parameters
1331	# change in the popup settings panel. Sends the new settings off
1332	# to the back end.
1333	# ----------------------------------------------------------------------
1334	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1335	foreach spec $args {
1336	if { [info exists _settings($_first-$spec)] } {
1337	# Reset global setting with dataobj specific setting
1338	set _settings($spec) $_settings($_first-$spec)
1339	}
1340	AdjustSetting $spec
1341	}
1342	}
1343
1344	#
1345	# AdjustSetting --
1346	#
1347	# Changes/updates a specific setting in the widget. There are
1348	# usually user-setable option. Commands are sent to the render
1349	# server.
1350	#
1351	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1352	if { ![isconnected] } {
1353	return
1354	}
1355	switch -- $what {
1356	"-background" {
1357	set bgcolor [$itk_component(background) value]
1358	array set fgcolors {
1359	"black" "white"
1360	"white" "black"
1361	"grey" "black"
1362	}
1363	configure -plotbackground $bgcolor \
1364	-plotforeground $fgcolors($bgcolor)
1365	$itk_component(view) delete "legend"
1366	DrawLegend
1367	}
1368	"-axesvisible" {
1369	set bool $_settings(-axesvisible)
1370	SendCmd "axis visible all $bool"
1371	}
1372	"-axislabelsvisible" {
1373	set bool $_settings(-axislabelsvisible)
1374	SendCmd "axis labels all $bool"
1375	}
1376	"-xgrid" - "-ygrid" - "-zgrid" {
1377	set axis [string tolower [string range $what 1 1]]
1378	set bool $_settings($what)
1379	SendCmd "axis grid $axis $bool"
1380	}
1381	"-axismode" {
1382	set mode [$itk_component(axisMode) value]
1383	set mode [$itk_component(axisMode) translate $mode]
1384	set _settings($what) $mode
1385	SendCmd "axis flymode $mode"
1386	}
1387	"-cutplaneedges" {
1388	set bool $_settings($what)
1389	SendCmd "cutplane edges $bool"
1390	}
1391	"-cutplanesvisible" {
1392	set bool $_settings($what)
1393	SendCmd "cutplane visible 0"
1394	if { $bool } {
1395	foreach tag [CurrentDatasets -visible] {
1396	SendCmd "cutplane visible $bool $tag"
1397	}
1398	}
1399	if { $bool } {
1400	Rappture::Tooltip::for $itk_component(cutplane) \
1401	"Hide the cutplanes"
1402	} else {
1403	Rappture::Tooltip::for $itk_component(cutplane) \
1404	"Show the cutplanes"
1405	}
1406	}
1407	"-cutplanewireframe" {
1408	set bool $_settings($what)
1409	SendCmd "cutplane wireframe $bool"
1410	}
1411	"-cutplanelighting" {
1412	set bool $_settings($what)
1413	SendCmd "cutplane lighting $bool"
1414	}
1415	"-cutplaneopacity" {
1416	set val $_settings($what)
1417	set sval [expr { 0.01 * double($val) }]
1418	SendCmd "cutplane opacity $sval"
1419	}
1420	"-cutplanepreinterp" {
1421	set bool $_settings($what)
1422	SendCmd "cutplane preinterp $bool"
1423	}
1424	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1425	set axis [string tolower [string range $what 1 1]]
1426	set bool $_settings($what)
1427	if { $bool } {
1428	$itk_component(${axis}position) configure -state normal \
1429	-troughcolor white
1430	} else {
1431	$itk_component(${axis}position) configure -state disabled \
1432	-troughcolor grey82
1433	}
1434	SendCmd "cutplane axis $axis $bool"
1435	}
1436	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1437	set axis [string tolower [string range $what 1 1]]
1438	set pos [expr $_settings($what) * 0.01]
1439	SendCmd "cutplane slice ${axis} ${pos}"
1440	set _cutplanePending 0
1441	}
1442	"-colormap" {
1443	set _changed(-colormap) 1
1444	StartBufferingCommands
1445	set color [$itk_component(colormap) value]
1446	set _settings(-colormap) $color
1447	if { $color == "none" } {
1448	if { $_settings(-colormapvisible) } {
1449	SendCmd "contour3d colormode constant {}"
1450	set _settings(-colormapvisible) 0
1451	}
1452	} else {
1453	if { !$_settings(-colormapvisible) } {
1454	SendCmd "contour3d colormode $_colorMode $_curFldName"
1455	set _settings(-colormapvisible) 1
1456	}
1457	SetCurrentColormap $color
1458	}
1459	StopBufferingCommands
1460	EventuallyRequestLegend
1461	}
1462	"-numcontours" {
1463	set _settings($what) [$itk_component(numcontours) value]
1464	if { $_contourList(numLevels) != $_settings($what) } {
1465	set _contourList(numLevels) $_settings($what)
1466	EventuallyChangeContourLevels
1467	}
1468	}
1469	"-isosurfacewireframe" {
1470	set bool $_settings($what)
1471	SendCmd "contour3d wireframe $bool"
1472	}
1473	"-isosurfacevisible" {
1474	set bool $_settings($what)
1475	SendCmd "contour3d visible 0"
1476	if { $bool } {
1477	foreach tag [CurrentDatasets -visible] {
1478	SendCmd "contour3d visible $bool $tag"
1479	}
1480	}
1481	if { $bool } {
1482	Rappture::Tooltip::for $itk_component(contour) \
1483	"Hide the isosurface"
1484	} else {
1485	Rappture::Tooltip::for $itk_component(contour) \
1486	"Show the isosurface"
1487	}
1488	}
1489	"-isosurfacelighting" {
1490	set bool $_settings($what)
1491	SendCmd "contour3d lighting $bool"
1492	}
1493	"-isosurfaceedges" {
1494	set bool $_settings($what)
1495	SendCmd "contour3d edges $bool"
1496	}
1497	"-outline" {
1498	set bool $_settings($what)
1499	SendCmd "outline visible 0"
1500	if { $bool } {
1501	foreach tag [CurrentDatasets -visible] {
1502	SendCmd "outline visible $bool $tag"
1503	}
1504	}
1505	}
1506	"-isolinecolor" {
1507	set color [$itk_component(isolineColor) value]
1508	set _settings($what) $color
1509	DrawLegend
1510	}
1511	"-isosurfaceopacity" {
1512	set val $_settings($what)
1513	set sval [expr { 0.01 * double($val) }]
1514	SendCmd "contour3d opacity $sval"
1515	}
1516	"-field" {
1517	set label [$itk_component(field) value]
1518	set fname [$itk_component(field) translate $label]
1519	set _settings($what) $fname
1520	if { [info exists _fields($fname)] } {
1521	foreach { label units components } $_fields($fname) break
1522	if { $components > 1 } {
1523	set _colorMode vmag
1524	} else {
1525	set _colorMode scalar
1526	}
1527	set _curFldName $fname
1528	set _curFldLabel $label
1529	} else {
1530	puts stderr "unknown field \"$fname\""
1531	return
1532	}
1533	SendCmd "dataset scalar $_curFldName"
1534	if { ![info exists _limits($_curFldName)] } {
1535	SendCmd "dataset maprange all"
1536	puts stderr "dataset maprange all"
1537	} else {
1538	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1539	}
1540	SendCmd "cutplane colormode $_colorMode $_curFldName"
1541	SendCmd "contour3d colormode $_colorMode $_curFldName"
1542	SendCmd "camera reset"
1543	DrawLegend
1544	}
1545	"-legendvisible" {
1546	if { !$_settings($what) } {
1547	$itk_component(view) delete legend
1548	}
1549	DrawLegend
1550	}
1551	default {
1552	error "don't know how to fix $what"
1553	}
1554	}
1555	}
1556
1557
1558	#
1559	# RequestLegend --
1560	#
1561	# Request a new legend from the server. The size of the legend
1562	# is determined from the height of the canvas.
1563	#
1564	# This should be called when
1565	# 1. A new current colormap is set.
1566	# 2. Window is resized.
1567	# 3. The limits of the data have changed. (Just need a redraw).
1568	# 4. Number of isolines have changed. (Just need a redraw).
1569	# 5. Legend becomes visible (Just need a redraw).
1570	#
1571	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1572	set _legendPending 0
1573	if { ![info exists _fields($_curFldName)] } {
1574	return
1575	}
1576	set fname $_curFldName
1577	set font "Arial 8"
1578	set lineht [font metrics $font -linespace]
1579	set w 12
1580	set h [expr {$_height - 2 * ($lineht + 2)}]
1581	if { $h < 1 } {
1582	return
1583	}
1584	if { [string match "component*" $fname] } {
1585	set title ""
1586	} else {
1587	if { [info exists _fields($fname)] } {
1588	foreach { title units } $_fields($fname) break
1589	if { $units != "" } {
1590	set title [format "%s (%s)" $title $units]
1591	}
1592	} else {
1593	set title $fname
1594	}
1595	}
1596	# If there's a title too, subtract one more line
1597	if { $title != "" } {
1598	incr h -$lineht
1599	}
1600	# Set the legend on the first heightmap dataset.
1601	if { $_currentColormap != "" } {
1602	set cmap $_currentColormap
1603	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1604	}
1605	}
1606
1607	# ----------------------------------------------------------------------
1608	# CONFIGURATION OPTION: -plotbackground
1609	# ----------------------------------------------------------------------
1610	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1611	if { [isconnected] } {
1612	set rgb [Color2RGB $itk_option(-plotbackground)]
1613	SendCmd "screen bgcolor $rgb"
1614	}
1615	}
1616
1617	# ----------------------------------------------------------------------
1618	# CONFIGURATION OPTION: -plotforeground
1619	# ----------------------------------------------------------------------
1620	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1621	if { [isconnected] } {
1622	set rgb [Color2RGB $itk_option(-plotforeground)]
1623	SendCmd "axis color all $rgb"
1624	SendCmd "outline color $rgb"
1625	SendCmd "cutplane color $rgb"
1626	}
1627	}
1628
1629	itcl::body Rappture::VtkIsosurfaceViewer::limits { dataobj } {
1630	foreach { limits(xmin) limits(xmax) } [$dataobj limits x] break
1631	foreach { limits(ymin) limits(ymax) } [$dataobj limits y] break
1632	foreach { limits(zmin) limits(zmax) } [$dataobj limits z] break
1633	foreach { limits(vmin) limits(vmax) } [$dataobj limits v] break
1634	return [array get limits]
1635	}
1636
1637	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1638
1639	set fg [option get $itk_component(hull) font Font]
1640	#set bfg [option get $itk_component(hull) boldFont Font]
1641
1642	set inner [$itk_component(main) insert end \
1643	-title "Isosurface Settings" \
1644	-icon [Rappture::icon volume-on]]
1645	$inner configure -borderwidth 4
1646
1647	checkbutton $inner.contour \
1648	-text "Isosurfaces" \
1649	-variable [itcl::scope _settings(-isosurfacevisible)] \
1650	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1651	-font "Arial 9"
1652
1653	checkbutton $inner.wireframe \
1654	-text "Wireframe" \
1655	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1656	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1657	-font "Arial 9"
1658
1659	checkbutton $inner.lighting \
1660	-text "Enable Lighting" \
1661	-variable [itcl::scope _settings(-isosurfacelighting)] \
1662	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1663	-font "Arial 9"
1664
1665	checkbutton $inner.edges \
1666	-text "Edges" \
1667	-variable [itcl::scope _settings(-isosurfaceedges)] \
1668	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1669	-font "Arial 9"
1670
1671	checkbutton $inner.outline \
1672	-text "Outline" \
1673	-variable [itcl::scope _settings(-outline)] \
1674	-command [itcl::code $this AdjustSetting -outline] \
1675	-font "Arial 9"
1676
1677	checkbutton $inner.legend \
1678	-text "Legend" \
1679	-variable [itcl::scope _settings(-legendvisible)] \
1680	-command [itcl::code $this AdjustSetting -legendvisible] \
1681	-font "Arial 9"
1682
1683	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1684	itk_component add isolineColor {
1685	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1686	}
1687	$inner.linecolor choices insert end \
1688	"black" "black" \
1689	"blue" "blue" \
1690	"cyan" "cyan" \
1691	"green" "green" \
1692	"grey" "grey" \
1693	"magenta" "magenta" \
1694	"orange" "orange" \
1695	"red" "red" \
1696	"white" "white" \
1697	"none" "none"
1698
1699	$itk_component(isolineColor) value "white"
1700	bind $inner.linecolor <<Value>> \
1701	[itcl::code $this AdjustSetting -isolinecolor]
1702
1703	label $inner.background_l -text "Background" -font "Arial 9"
1704	itk_component add background {
1705	Rappture::Combobox $inner.background -width 10 -editable 0
1706	}
1707	$inner.background choices insert end \
1708	"black" "black" \
1709	"white" "white" \
1710	"grey" "grey"
1711
1712	$itk_component(background) value $_settings(-background)
1713	bind $inner.background <<Value>> \
1714	[itcl::code $this AdjustSetting -background]
1715
1716	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1717	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1718	-variable [itcl::scope _settings(-isosurfaceopacity)] \
1719	-width 10 \
1720	-showvalue off \
1721	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1722
1723	label $inner.scale_l -text "Scale" -font "Arial 9"
1724	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1725	-variable [itcl::scope _settings(-contourscale)] \
1726	-width 10 \
1727	-showvalue off \
1728	-command [itcl::code $this AdjustSetting -contourscale]
1729
1730	itk_component add field_l {
1731	label $inner.field_l -text "Field" -font "Arial 9"
1732	} {
1733	ignore -font
1734	}
1735	itk_component add field {
1736	Rappture::Combobox $inner.field -width 10 -editable 0
1737	}
1738	bind $inner.field <<Value>> \
1739	[itcl::code $this AdjustSetting -field]
1740
1741	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1742	itk_component add colormap {
1743	Rappture::Combobox $inner.colormap -width 10 -editable 0
1744	}
1745	$inner.colormap choices insert end \
1746	"BCGYR" "BCGYR" \
1747	"BGYOR" "BGYOR" \
1748	"blue" "blue" \
1749	"blue-to-brown" "blue-to-brown" \
1750	"blue-to-orange" "blue-to-orange" \
1751	"blue-to-grey" "blue-to-grey" \
1752	"green-to-magenta" "green-to-magenta" \
1753	"greyscale" "greyscale" \
1754	"nanohub" "nanohub" \
1755	"rainbow" "rainbow" \
1756	"spectral" "spectral" \
1757	"ROYGB" "ROYGB" \
1758	"RYGCB" "RYGCB" \
1759	"brown-to-blue" "brown-to-blue" \
1760	"grey-to-blue" "grey-to-blue" \
1761	"orange-to-blue" "orange-to-blue"
1762
1763	$itk_component(colormap) value "BCGYR"
1764	bind $inner.colormap <<Value>> \
1765	[itcl::code $this AdjustSetting -colormap]
1766
1767	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1768	itk_component add numcontours {
1769	Rappture::Spinint $inner.numcontours \
1770	-min 0 -max 50 -font "arial 9"
1771	}
1772	$itk_component(numcontours) value $_settings(-numcontours)
1773	bind $itk_component(numcontours) <<Value>> \
1774	[itcl::code $this AdjustSetting -numcontours]
1775
1776	blt::table $inner \
1777	0,0 $inner.field_l -anchor w -pady 2 \
1778	0,1 $inner.field -anchor w -pady 2 -fill x \
1779	1,0 $inner.colormap_l -anchor w -pady 2 \
1780	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1781	2,0 $inner.linecolor_l -anchor w -pady 2 \
1782	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1783	3,0 $inner.background_l -anchor w -pady 2 \
1784	3,1 $inner.background -anchor w -pady 2 -fill x \
1785	4,0 $inner.numcontours_l -anchor w -pady 2 \
1786	4,1 $inner.numcontours -anchor w -pady 2 \
1787	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1788	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1789	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1790	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1791	9,0 $inner.legend -anchor w -pady 2 \
1792	10,0 $inner.opacity_l -anchor w -pady 2 \
1793	10,1 $inner.opacity -fill x -pady 2 -fill x \
1794
1795	blt::table configure $inner r* c* -resize none
1796	blt::table configure $inner r11 c1 -resize expand
1797	}
1798
1799	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1800
1801	set fg [option get $itk_component(hull) font Font]
1802	#set bfg [option get $itk_component(hull) boldFont Font]
1803
1804	set inner [$itk_component(main) insert end \
1805	-title "Axis Settings" \
1806	-icon [Rappture::icon axis2]]
1807	$inner configure -borderwidth 4
1808
1809	checkbutton $inner.visible \
1810	-text "Show Axes" \
1811	-variable [itcl::scope _settings(-axesvisible)] \
1812	-command [itcl::code $this AdjustSetting -axesvisible] \
1813	-font "Arial 9"
1814
1815	checkbutton $inner.labels \
1816	-text "Show Axis Labels" \
1817	-variable [itcl::scope _settings(-axislabelsvisible)] \
1818	-command [itcl::code $this AdjustSetting -axislabelsvisible] \
1819	-font "Arial 9"
1820
1821	checkbutton $inner.gridx \
1822	-text "Show X Grid" \
1823	-variable [itcl::scope _settings(-xgrid)] \
1824	-command [itcl::code $this AdjustSetting -xgrid] \
1825	-font "Arial 9"
1826	checkbutton $inner.gridy \
1827	-text "Show Y Grid" \
1828	-variable [itcl::scope _settings(-ygrid)] \
1829	-command [itcl::code $this AdjustSetting -ygrid] \
1830	-font "Arial 9"
1831	checkbutton $inner.gridz \
1832	-text "Show Z Grid" \
1833	-variable [itcl::scope _settings(-zgrid)] \
1834	-command [itcl::code $this AdjustSetting -zgrid] \
1835	-font "Arial 9"
1836
1837	label $inner.mode_l -text "Mode" -font "Arial 9"
1838
1839	itk_component add axisMode {
1840	Rappture::Combobox $inner.mode -width 10 -editable 0
1841	}
1842	$inner.mode choices insert end \
1843	"static_triad" "static" \
1844	"closest_triad" "closest" \
1845	"furthest_triad" "farthest" \
1846	"outer_edges" "outer"
1847	$itk_component(axisMode) value "static"
1848	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1849
1850	blt::table $inner \
1851	0,0 $inner.visible -anchor w -cspan 2 \
1852	1,0 $inner.labels -anchor w -cspan 2 \
1853	2,0 $inner.gridx -anchor w -cspan 2 \
1854	3,0 $inner.gridy -anchor w -cspan 2 \
1855	4,0 $inner.gridz -anchor w -cspan 2 \
1856	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1857	6,0 $inner.mode -fill x -cspan 2
1858
1859	blt::table configure $inner r* c* -resize none
1860	blt::table configure $inner r7 c1 -resize expand
1861	}
1862
1863
1864	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1865	set inner [$itk_component(main) insert end \
1866	-title "Camera Settings" \
1867	-icon [Rappture::icon camera]]
1868	$inner configure -borderwidth 4
1869
1870	label $inner.view_l -text "view" -font "Arial 9"
1871	set f [frame $inner.view]
1872	foreach side { front back left right top bottom } {
1873	button $f.$side -image [Rappture::icon view$side] \
1874	-command [itcl::code $this SetOrientation $side]
1875	Rappture::Tooltip::for $f.$side "Change the view to $side"
1876	pack $f.$side -side left
1877	}
1878
1879	blt::table $inner \
1880	0,0 $inner.view_l -anchor e -pady 2 \
1881	0,1 $inner.view -anchor w -pady 2
1882
1883	set labels { qx qy qz qw xpan ypan zoom }
1884	set row 1
1885	foreach tag $labels {
1886	label $inner.${tag}label -text $tag -font "Arial 9"
1887	entry $inner.${tag} -font "Arial 9" -bg white \
1888	-textvariable [itcl::scope _view($tag)]
1889	bind $inner.${tag} <KeyPress-Return> \
1890	[itcl::code $this camera set ${tag}]
1891	blt::table $inner \
1892	$row,0 $inner.${tag}label -anchor e -pady 2 \
1893	$row,1 $inner.${tag} -anchor w -pady 2
1894	blt::table configure $inner r$row -resize none
1895	incr row
1896	}
1897	checkbutton $inner.ortho \
1898	-text "Orthographic Projection" \
1899	-variable [itcl::scope _view(ortho)] \
1900	-command [itcl::code $this camera set ortho] \
1901	-font "Arial 9"
1902	blt::table $inner \
1903	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1904	blt::table configure $inner r$row -resize none
1905	incr row
1906
1907	blt::table configure $inner c* r* -resize none
1908	blt::table configure $inner c2 -resize expand
1909	blt::table configure $inner r$row -resize expand
1910	}
1911
1912	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1913
1914	set fg [option get $itk_component(hull) font Font]
1915
1916	set inner [$itk_component(main) insert end \
1917	-title "Cutplane Settings" \
1918	-icon [Rappture::icon cutbutton]]
1919
1920	$inner configure -borderwidth 4
1921
1922	checkbutton $inner.visible \
1923	-text "Cutplanes" \
1924	-variable [itcl::scope _settings(-cutplanesvisible)] \
1925	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
1926	-font "Arial 9"
1927
1928	checkbutton $inner.wireframe \
1929	-text "Wireframe" \
1930	-variable [itcl::scope _settings(-cutplanewireframe)] \
1931	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
1932	-font "Arial 9"
1933
1934	checkbutton $inner.lighting \
1935	-text "Enable Lighting" \
1936	-variable [itcl::scope _settings(-cutplanelighting)] \
1937	-command [itcl::code $this AdjustSetting -cutplanelighting] \
1938	-font "Arial 9"
1939
1940	checkbutton $inner.edges \
1941	-text "Edges" \
1942	-variable [itcl::scope _settings(-cutplaneedges)] \
1943	-command [itcl::code $this AdjustSetting -cutplaneedges] \
1944	-font "Arial 9"
1945
1946	checkbutton $inner.preinterp \
1947	-text "Interpolate Scalars" \
1948	-variable [itcl::scope _settings(-cutplanepreinterp)] \
1949	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
1950	-font "Arial 9"
1951
1952	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1953	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1954	-variable [itcl::scope _settings(-cutplaneopacity)] \
1955	-width 10 \
1956	-showvalue off \
1957	-command [itcl::code $this AdjustSetting -cutplaneopacity]
1958	$inner.opacity set $_settings(-cutplaneopacity)
1959
1960	# X-value slicer...
1961	itk_component add xbutton {
1962	Rappture::PushButton $inner.xbutton \
1963	-onimage [Rappture::icon x-cutplane-red] \
1964	-offimage [Rappture::icon x-cutplane-red] \
1965	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
1966	-variable [itcl::scope _settings(-xcutplanevisible)] \
1967	}
1968	Rappture::Tooltip::for $itk_component(xbutton) \
1969	"Toggle the X-axis cutplane on/off"
1970	$itk_component(xbutton) select
1971	itk_component add xposition {
1972	::scale $inner.xval -from 100 -to 0 \
1973	-width 10 -orient vertical -showvalue 1 \
1974	-borderwidth 1 -highlightthickness 0 \
1975	-command [itcl::code $this EventuallySetCutplane x] \
1976	-variable [itcl::scope _settings(-xcutplaneposition)] \
1977	-foreground red2 -font "Arial 9 bold"
1978	} {
1979	usual
1980	ignore -borderwidth -highlightthickness -foreground -font -background
1981	}
1982	# Set the default cutplane value before disabling the scale.
1983	$itk_component(xposition) set 50
1984	$itk_component(xposition) configure -state disabled
1985	Rappture::Tooltip::for $itk_component(xposition) \
1986	"@[itcl::code $this Slice tooltip x]"
1987
1988	# Y-value slicer...
1989	itk_component add ybutton {
1990	Rappture::PushButton $inner.ybutton \
1991	-onimage [Rappture::icon y-cutplane-green] \
1992	-offimage [Rappture::icon y-cutplane-green] \
1993	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
1994	-variable [itcl::scope _settings(-ycutplanevisible)] \
1995	}
1996	Rappture::Tooltip::for $itk_component(ybutton) \
1997	"Toggle the Y-axis cutplane on/off"
1998	$itk_component(ybutton) select
1999
2000	itk_component add yposition {
2001	::scale $inner.yval -from 100 -to 0 \
2002	-width 10 -orient vertical -showvalue 1 \
2003	-borderwidth 1 -highlightthickness 0 \
2004	-command [itcl::code $this EventuallySetCutplane y] \
2005	-variable [itcl::scope _settings(-ycutplaneposition)] \
2006	-foreground green3 -font "Arial 9 bold"
2007	} {
2008	usual
2009	ignore -borderwidth -highlightthickness -foreground -font
2010	}
2011	Rappture::Tooltip::for $itk_component(yposition) \
2012	"@[itcl::code $this Slice tooltip y]"
2013	# Set the default cutplane value before disabling the scale.
2014	$itk_component(yposition) set 50
2015	$itk_component(yposition) configure -state disabled
2016
2017	# Z-value slicer...
2018	itk_component add zbutton {
2019	Rappture::PushButton $inner.zbutton \
2020	-onimage [Rappture::icon z-cutplane-blue] \
2021	-offimage [Rappture::icon z-cutplane-blue] \
2022	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2023	-variable [itcl::scope _settings(-zcutplanevisible)] \
2024	} {
2025	usual
2026	ignore -foreground
2027	}
2028	Rappture::Tooltip::for $itk_component(zbutton) \
2029	"Toggle the Z-axis cutplane on/off"
2030	$itk_component(zbutton) select
2031
2032	itk_component add zposition {
2033	::scale $inner.zval -from 100 -to 0 \
2034	-width 10 -orient vertical -showvalue 1 \
2035	-borderwidth 1 -highlightthickness 0 \
2036	-command [itcl::code $this EventuallySetCutplane z] \
2037	-variable [itcl::scope _settings(-zcutplaneposition)] \
2038	-foreground blue3 -font "Arial 9 bold"
2039	} {
2040	usual
2041	ignore -borderwidth -highlightthickness -foreground -font
2042	}
2043	$itk_component(zposition) set 50
2044	$itk_component(zposition) configure -state disabled
2045	Rappture::Tooltip::for $itk_component(zposition) \
2046	"@[itcl::code $this Slice tooltip z]"
2047
2048	blt::table $inner \
2049	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2050	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2051	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2052	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2053	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2054	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2055	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2056	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2057	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2058	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2059	6,1 $inner.xval -fill y -rspan 4 \
2060	6,2 $inner.yval -fill y -rspan 4 \
2061	6,3 $inner.zval -fill y -rspan 4 \
2062
2063
2064	blt::table configure $inner r* c* -resize none
2065	blt::table configure $inner r9 c4 -resize expand
2066	}
2067
2068
2069
2070	#
2071	# camera --
2072	#
2073	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2074	switch -- $option {
2075	"show" {
2076	puts [array get _view]
2077	}
2078	"set" {
2079	set who [lindex $args 0]
2080	set x $_view($who)
2081	set code [catch { string is double $x } result]
2082	if { $code != 0 \|\| !$result } {
2083	return
2084	}
2085	switch -- $who {
2086	"ortho" {
2087	if {$_view(ortho)} {
2088	SendCmd "camera mode ortho"
2089	} else {
2090	SendCmd "camera mode persp"
2091	}
2092	}
2093	"xpan" - "ypan" {
2094	PanCamera
2095	}
2096	"qx" - "qy" - "qz" - "qw" {
2097	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2098	$_arcball quaternion $q
2099	EventuallyRotate $q
2100	}
2101	"zoom" {
2102	SendCmd "camera zoom $_view(zoom)"
2103	}
2104	}
2105	}
2106	}
2107	}
2108
2109	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2110	set bytes ""
2111	foreach dataobj [get] {
2112	foreach cname [$dataobj components] {
2113	set tag $dataobj-$cname
2114	set contents [$dataobj vtkdata $cname]
2115	append bytes "$contents\n"
2116	}
2117	}
2118	return [list .vtk $bytes]
2119	}
2120
2121	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2122	if { [image width $_image(download)] > 0 &&
2123	[image height $_image(download)] > 0 } {
2124	set bytes [$_image(download) data -format "jpeg -quality 100"]
2125	set bytes [Rappture::encoding::decode -as b64 $bytes]
2126	return [list .jpg $bytes]
2127	}
2128	return ""
2129	}
2130
2131	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2132	Rappture::Balloon $popup \
2133	-title "[Rappture::filexfer::label downloadWord] as..."
2134	set inner [$popup component inner]
2135	label $inner.summary -text "" -anchor w
2136	radiobutton $inner.vtk_button -text "VTK data file" \
2137	-variable [itcl::scope _downloadPopup(format)] \
2138	-font "Arial 9 " \
2139	-value vtk
2140	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2141	radiobutton $inner.image_button -text "Image File" \
2142	-variable [itcl::scope _downloadPopup(format)] \
2143	-font "Arial 9 " \
2144	-value image
2145	Rappture::Tooltip::for $inner.image_button \
2146	"Save as digital image."
2147
2148	button $inner.ok -text "Save" \
2149	-highlightthickness 0 -pady 2 -padx 3 \
2150	-command $command \
2151	-compound left \
2152	-image [Rappture::icon download]
2153
2154	button $inner.cancel -text "Cancel" \
2155	-highlightthickness 0 -pady 2 -padx 3 \
2156	-command [list $popup deactivate] \
2157	-compound left \
2158	-image [Rappture::icon cancel]
2159
2160	blt::table $inner \
2161	0,0 $inner.summary -cspan 2 \
2162	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2163	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2164	4,1 $inner.cancel -width .9i -fill y \
2165	4,0 $inner.ok -padx 2 -width .9i -fill y
2166	blt::table configure $inner r3 -height 4
2167	blt::table configure $inner r4 -pady 4
2168	raise $inner.image_button
2169	$inner.vtk_button invoke
2170	return $inner
2171	}
2172
2173	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2174	# Parse style string.
2175	set tag $dataobj-$comp
2176	array set style {
2177	-color BCGYR
2178	-cutplanesvisible 0
2179	-edgecolor black
2180	-edges 0
2181	-isosurfacevisible 1
2182	-levels 10
2183	-lighting 1
2184	-linewidth 1.0
2185	-opacity 0.6
2186	-outline 0
2187	-wireframe 0
2188	-xcutplaneposition 50
2189	-xcutplanevisible 1
2190	-ycutplaneposition 50
2191	-ycutplanevisible 1
2192	-zcutplaneposition 50
2193	-zcutplanevisible 1
2194	}
2195	array set style [$dataobj style $comp]
2196	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2197	set style(-opacity) 1
2198	}
2199	SendCmd "cutplane add $tag"
2200	SendCmd "cutplane visible 0 $tag"
2201
2202	# This is too complicated. We want to set the colormap, number of
2203	# isolines and opacity for the dataset. They can be the default values,
2204	# the style hints loaded with the dataset, or set by user controls. As
2205	# datasets get loaded, they first use the defaults that are overidden
2206	# by the style hints. If the user changes the global controls, then that
2207	# overrides everything else. I don't know what it means when global
2208	# controls are specified as style hints by each dataset. It complicates
2209	# the code to handle aberrant cases.
2210
2211	if { $_changed(-isosurfaceopacity) } {
2212	set style(-opacity) $_settings(-isosurfaceopacity)
2213	}
2214	if { $_changed(-numcontours) } {
2215	set style(-levels) $_settings(-numcontours)
2216	}
2217	if { $_changed(-colormap) } {
2218	set style(-color) $_settings(-colormap)
2219	}
2220	if { $_currentColormap == "" } {
2221	SetCurrentColormap $style(-color)
2222	$itk_component(colormap) value $style(-color)
2223	}
2224	set _currentOpacity $style(-opacity)
2225	if { $_contourList(numLevels) != $style(-levels) } {
2226	set _settings(-numcontours) $style(-levels)
2227	$itk_component(numcontours) value $style(-levels)
2228	set _contourList(numLevels) $style(-levels)
2229	EventuallyChangeContourLevels
2230	}
2231	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
2232	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
2233	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
2234	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
2235	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
2236	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
2237	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
2238	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
2239
2240	GenerateContourList
2241	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2242
2243	SendCmd "contour3d edges $style(-edges) $tag"
2244	SendCmd "outline add $tag"
2245	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2246	SendCmd "outline visible $style(-outline) $tag"
2247	set _settings(-outline) $style(-outline)
2248	set _settings(-isosurfaceedges) $style(-edges)
2249	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2250	SendCmd "contour3d lighting $style(-lighting) $tag"
2251	set _settings(-isosurfacelighting) $style(-lighting)
2252	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2253	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2254	SendCmd "contour3d opacity $_currentOpacity $tag"
2255	set _settings(-isosurfaceopacity) $style(-opacity)
2256	SetCurrentColormap $style(-color)
2257	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2258	set _settings(-isosurfacewireframe) $style(-wireframe)
2259	set _settings(-isosurfaceopacity) [expr $style(-opacity) * 100.0]
2260	}
2261
2262	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2263	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2264	return 0
2265	}
2266	return 1
2267	}
2268
2269	#
2270	# EnterLegend --
2271	#
2272	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2273	SetLegendTip $x $y
2274	}
2275
2276	#
2277	# MotionLegend --
2278	#
2279	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2280	Rappture::Tooltip::tooltip cancel
2281	set c $itk_component(view)
2282	set cw [winfo width $c]
2283	set ch [winfo height $c]
2284	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2285	SetLegendTip $x $y
2286	}
2287	}
2288
2289	#
2290	# LeaveLegend --
2291	#
2292	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2293	Rappture::Tooltip::tooltip cancel
2294	.rappturetooltip configure -icon ""
2295	}
2296
2297	#
2298	# SetLegendTip --
2299	#
2300	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2301	set fname $_curFldName
2302	set c $itk_component(view)
2303	set w [winfo width $c]
2304	set h [winfo height $c]
2305
2306	set font "Arial 8"
2307	set lineht [font metrics $font -linespace]
2308
2309	set ih [image height $_image(legend)]
2310	set iy [expr $y - ($lineht + 2)]
2311
2312	if { [string match "component*" $fname] } {
2313	set title ""
2314	} else {
2315	if { [info exists _fields($fname)] } {
2316	foreach { title units } $_fields($fname) break
2317	if { $units != "" } {
2318	set title [format "%s (%s)" $title $units]
2319	}
2320	} else {
2321	set title $fname
2322	}
2323	}
2324	# If there's a legend title, increase the offset by the line height.
2325	if { $title != "" } {
2326	incr iy -$lineht
2327	}
2328	# Make a swatch of the selected color
2329	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2330	return
2331	}
2332	if { ![info exists _image(swatch)] } {
2333	set _image(swatch) [image create photo -width 24 -height 24]
2334	}
2335	set color [eval format "\#%02x%02x%02x" $pixel]
2336	$_image(swatch) put black -to 0 0 23 23
2337	$_image(swatch) put $color -to 1 1 22 22
2338	.rappturetooltip configure -icon $_image(swatch)
2339
2340	# Compute the value of the point
2341	if { [info exists _limits($_curFldName)] } {
2342	foreach { vmin vmax } $_limits($_curFldName) break
2343	set t [expr 1.0 - (double($iy) / double($ih-1))]
2344	set value [expr $t * ($vmax - $vmin) + $vmin]
2345	} else {
2346	set value 0.0
2347	}
2348	set tx [expr $x + 15]
2349	set ty [expr $y - 5]
2350	if { [info exists _isolines($y)] } {
2351	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2352	} else {
2353	Rappture::Tooltip::text $c [format "$title %g" $value]
2354	}
2355	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2356	}
2357
2358
2359	# ----------------------------------------------------------------------
2360	# USAGE: Slice move x\|y\|z <newval>
2361	#
2362	# Called automatically when the user drags the slider to move the
2363	# cut plane that slices 3D data. Gets the current value from the
2364	# slider and moves the cut plane to the appropriate point in the
2365	# data set.
2366	# ----------------------------------------------------------------------
2367	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2368	switch -- $option {
2369	"move" {
2370	set axis [lindex $args 0]
2371	set newval [lindex $args 1]
2372	if {[llength $args] != 2} {
2373	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2374	}
2375	set newpos [expr {0.01*$newval}]
2376	SendCmd "cutplane slice $axis $newpos"
2377	}
2378	"tooltip" {
2379	set axis [lindex $args 0]
2380	set val [$itk_component(${axis}position) get]
2381	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2382	}
2383	default {
2384	error "bad option \"$option\": should be axis, move, or tooltip"
2385	}
2386	}
2387	}
2388
2389	#
2390	# ReceiveLegend --
2391	#
2392	# Invoked automatically whenever the "legend" command comes in from
2393	# the rendering server. Indicates that binary image data with the
2394	# specified <size> will follow.
2395	#
2396	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2397	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2398	set _title $title
2399	regsub {\(mag\)} $title "" _title
2400	if { [IsConnected] } {
2401	set bytes [ReceiveBytes $size]
2402	if { ![info exists _image(legend)] } {
2403	set _image(legend) [image create photo]
2404	}
2405	$_image(legend) configure -data $bytes
2406	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2407	if { [catch {DrawLegend} errs] != 0 } {
2408	global errorInfo
2409	puts stderr "errs=$errs errorInfo=$errorInfo"
2410	}
2411	}
2412	}
2413
2414	#
2415	# DrawLegend --
2416	#
2417	# Draws the legend in the own canvas on the right side of the plot area.
2418	#
2419	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2420	set fname $_curFldName
2421	set c $itk_component(view)
2422	set w [winfo width $c]
2423	set h [winfo height $c]
2424	set font "Arial 8"
2425	set lineht [font metrics $font -linespace]
2426
2427	if { [string match "component*" $fname] } {
2428	set title ""
2429	} else {
2430	if { [info exists _fields($fname)] } {
2431	foreach { title units } $_fields($fname) break
2432	if { $units != "" } {
2433	set title [format "%s (%s)" $title $units]
2434	}
2435	} else {
2436	set title $fname
2437	}
2438	}
2439	set x [expr $w - 2]
2440	if { !$_settings(-legendvisible) } {
2441	$c delete legend
2442	return
2443	}
2444	if { [$c find withtag "legend"] == "" } {
2445	set y 2
2446	# If there's a legend title, create a text item for the title.
2447	$c create text $x $y \
2448	-anchor ne \
2449	-fill $itk_option(-plotforeground) -tags "title legend" \
2450	-font $font
2451	if { $title != "" } {
2452	incr y $lineht
2453	}
2454	$c create text $x $y \
2455	-anchor ne \
2456	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2457	-font $font
2458	incr y $lineht
2459	$c create image $x $y \
2460	-anchor ne \
2461	-image $_image(legend) -tags "colormap legend"
2462	$c create rectangle $x $y 1 1 \
2463	-fill "" -outline "" -tags "sensor legend"
2464	$c create text $x [expr {$h-2}] \
2465	-anchor se \
2466	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2467	-font $font
2468	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2469	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2470	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2471	}
2472	$c delete isoline
2473	set x2 $x
2474	set iw [image width $_image(legend)]
2475	set ih [image height $_image(legend)]
2476	set x1 [expr $x2 - ($iw*12)/10]
2477	set color $_settings(-isolinecolor)
2478	# Draw the isolines on the legend.
2479	array unset _isolines
2480	if { $color != "none" && [info exists _limits($_curFldName)] &&
2481	$_settings(-numcontours) > 0 } {
2482
2483	foreach { vmin vmax } $_limits($_curFldName) break
2484	set range [expr double($vmax - $vmin)]
2485	if { $range <= 0.0 } {
2486	set range 1.0; # Min is greater or equal to max.
2487	}
2488	set tags "isoline legend"
2489	set offset [expr 2 + $lineht]
2490	if { $title != "" } {
2491	incr offset $lineht
2492	}
2493	foreach value $_contourList(values) {
2494	set norm [expr 1.0 - (($value - $vmin) / $range)]
2495	set y1 [expr int(round(($norm * $ih) + $offset))]
2496	for { set off 0 } { $off < 3 } { incr off } {
2497	set _isolines([expr $y1 + $off]) $value
2498	set _isolines([expr $y1 - $off]) $value
2499	}
2500	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2501	}
2502	}
2503
2504	$c bind title <ButtonPress> [itcl::code $this Combo post]
2505	$c bind title <Enter> [itcl::code $this Combo activate]
2506	$c bind title <Leave> [itcl::code $this Combo deactivate]
2507	# Reset the item coordinates according the current size of the plot.
2508	$c itemconfigure title -text $title
2509	if { [info exists _limits($_curFldName)] } {
2510	foreach { vmin vmax } $_limits($_curFldName) break
2511	$c itemconfigure vmin -text [format %g $vmin]
2512	$c itemconfigure vmax -text [format %g $vmax]
2513	}
2514	set y 2
2515	# If there's a legend title, move the title to the correct position
2516	if { $title != "" } {
2517	$c itemconfigure title -text $title
2518	$c coords title $x $y
2519	incr y $lineht
2520	$c raise title
2521	}
2522	$c coords vmax $x $y
2523	incr y $lineht
2524	$c coords colormap $x $y
2525	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2526	$c raise sensor
2527	$c coords vmin $x [expr {$h - 2}]
2528	}
2529
2530	# ----------------------------------------------------------------------
2531	# USAGE: _dropdown post
2532	# USAGE: _dropdown unpost
2533	# USAGE: _dropdown select
2534	#
2535	# Used internally to handle the dropdown list for this combobox. The
2536	# post/unpost options are invoked when the list is posted or unposted
2537	# to manage the relief of the controlling button. The select option
2538	# is invoked whenever there is a selection from the list, to assign
2539	# the value back to the gauge.
2540	# ----------------------------------------------------------------------
2541	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2542	set c $itk_component(view)
2543	switch -- $option {
2544	post {
2545	foreach { x1 y1 x2 y2 } [$c bbox title] break
2546	set cw [winfo width $itk_component(view)]
2547	set mw [winfo reqwidth $itk_component(fieldmenu)]
2548	set x1 [expr $cw - $mw]
2549	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2550	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2551	tk_popup $itk_component(fieldmenu) $x $y
2552	}
2553	activate {
2554	$c itemconfigure title -fill red
2555	}
2556	deactivate {
2557	$c itemconfigure title -fill $itk_option(-plotforeground)
2558	}
2559	invoke {
2560	$itk_component(field) value $_curFldLabel
2561	AdjustSetting -field
2562	}
2563	default {
2564	error "bad option \"$option\": should be post, unpost, select"
2565	}
2566	}
2567	}
2568
2569	#
2570	# SetCurrentColormap --
2571	#
2572	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
2573	# Keep track of the colormaps that we build.
2574	if { ![info exists _colormaps($name)] } {
2575	BuildColormap $name
2576	set _colormaps($name) 1
2577	}
2578	set _currentColormap $name
2579	SendCmd "contour3d colormap $_currentColormap"
2580	SendCmd "cutplane colormap $_currentColormap"
2581	}
2582
2583	#
2584	# BuildColormap --
2585	#
2586	# Build the designated colormap on the server.
2587	#
2588	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
2589	set cmap [ColorsToColormap $name]
2590	if { [llength $cmap] == 0 } {
2591	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2592	}
2593	set wmap "0.0 1.0 1.0 1.0"
2594	SendCmd "colormap add $name { $cmap } { $wmap }"
2595	}
2596
2597	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
2598	array set positions {
2599	front "1 0 0 0"
2600	back "0 0 1 0"
2601	left "0.707107 0 -0.707107 0"
2602	right "0.707107 0 0.707107 0"
2603	top "0.707107 -0.707107 0 0"
2604	bottom "0.707107 0.707107 0 0"
2605	}
2606	foreach name { qw qx qy qz } value $positions($side) {
2607	set _view($name) $value
2608	}
2609	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2610	$_arcball quaternion $q
2611	SendCmd "camera orient $q"
2612	SendCmd "camera reset"
2613	set _view(xpan) 0
2614	set _view(ypan) 0
2615	set _view(zoom) 1.0
2616	}
2617
2618	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
2619	if { ![info exists _limits($_curFldName)] } {
2620	return ""
2621	}
2622	if { $_contourList(numLevels) < 1 } {
2623	return ""
2624	}
2625	foreach { vmin vmax } $_limits($_curFldName) break
2626	set v [blt::vector create \#auto]
2627	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
2628	$v delete end 0
2629	set values [$v range 0 end]
2630	blt::vector destroy $v
2631	set _contourList(values) $values
2632	}

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