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source: trunk/gui/scripts/vtkisosurfaceviewer.tcl @ 3416

Last change on this file since 3416 was 3416, checked in by gah, 11 years ago
fix switching between heightmap/contour modes
File size: 85.5 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2
3	# ----------------------------------------------------------------------
4	# COMPONENT: vtkisolinesviewer - Vtk 3D contour object viewer
5	#
6	# It connects to the Vtk server running on a rendering farm,
7	# transmits data, and displays the results.
8	# ======================================================================
9	# AUTHOR: Michael McLennan, Purdue University
10	# Copyright (c) 2004-2005 Purdue Research Foundation
11	#
12	# See the file "license.terms" for information on usage and
13	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14	# ======================================================================
15	package require Itk
16	package require BLT
17	#package require Img
18
19	option add *VtkIsosurfaceViewer.width 4i widgetDefault
20	option add VtkIsosurfaceViewercursor crosshair widgetDefault
21	option add *VtkIsosurfaceViewer.height 4i widgetDefault
22	option add *VtkIsosurfaceViewer.foreground black widgetDefault
23	option add *VtkIsosurfaceViewer.controlBackground gray widgetDefault
24	option add *VtkIsosurfaceViewer.controlDarkBackground #999999 widgetDefault
25	option add *VtkIsosurfaceViewer.plotBackground black widgetDefault
26	option add *VtkIsosurfaceViewer.plotForeground white widgetDefault
27	option add *VtkIsosurfaceViewer.font \
28	--helvetica-medium-r-normal--12-* widgetDefault
29
30	# must use this name -- plugs into Rappture::resources::load
31	proc VtkIsosurfaceViewer_init_resources {} {
32	Rappture::resources::register \
33	vtkvis_server Rappture::VtkIsosurfaceViewer::SetServerList
34	}
35
36	itcl::class Rappture::VtkIsosurfaceViewer {
37	inherit Rappture::VisViewer
38
39	itk_option define -plotforeground plotForeground Foreground ""
40	itk_option define -plotbackground plotBackground Background ""
41
42	constructor { hostlist args } {
43	Rappture::VisViewer::constructor $hostlist
44	} {
45	# defined below
46	}
47	destructor {
48	# defined below
49	}
50	public proc SetServerList { namelist } {
51	Rappture::VisViewer::SetServerList "vtkvis" $namelist
52	}
53	public method add {dataobj {settings ""}}
54	public method camera {option args}
55	public method delete {args}
56	public method disconnect {}
57	public method download {option args}
58	public method get {args}
59	public method isconnected {}
60	public method limits { colormap }
61	public method sendto { string }
62	public method parameters {title args} {
63	# do nothing
64	}
65	public method scale {args}
66
67	protected method Connect {}
68	protected method CurrentDatasets {args}
69	protected method Disconnect {}
70	protected method DoResize {}
71	protected method DoRotate {}
72	protected method AdjustSetting {what {value ""}}
73	protected method InitSettings { args }
74	protected method Pan {option x y}
75	protected method Pick {x y}
76	protected method Rebuild {}
77	protected method ReceiveDataset { args }
78	protected method ReceiveImage { args }
79	protected method ReceiveLegend { colormap title vmin vmax size }
80	protected method Rotate {option x y}
81	protected method SendCmd {string}
82	protected method SendCmdNoWait {string}
83	protected method Zoom {option}
84
85	# The following methods are only used by this class.
86	private method BuildAxisTab {}
87	private method BuildCameraTab {}
88	private method BuildColormap { name colors }
89	private method BuildCutplaneTab {}
90	private method BuildDownloadPopup { widget command }
91	private method BuildIsosurfaceTab {}
92	private method DrawLegend { title }
93	private method Combo { option }
94	private method EnterLegend { x y }
95	private method EventuallyResize { w h }
96	private method EventuallyRotate { q }
97	private method EventuallyRequestLegend {}
98	private method EventuallySetCutplane { axis args }
99	private method GetImage { args }
100	private method GetVtkData { args }
101	private method IsValidObject { dataobj }
102	private method LeaveLegend {}
103	private method MotionLegend { x y }
104	private method PanCamera {}
105	private method RequestLegend {}
106	private method SetLegendTip { x y }
107	private method SetObjectStyle { dataobj comp }
108	private method Slice {option args}
109	private method ResetColormap { color }
110	private method EnterIsoline { x y value }
111	private method LeaveIsoline {}
112	private method SetIsolineTip { x y value }
113	private method SetCurrentColormap { stylelist }
114
115	private variable _arcball ""
116	private variable _outbuf ; # buffer for outgoing commands
117
118	private variable _dlist "" ; # list of data objects
119	private variable _obj2datasets
120	private variable _obj2ovride ; # maps dataobj => style override
121	private variable _datasets ; # contains all the dataobj-component
122	; # datasets in the server
123	private variable _colormaps ; # contains all the colormaps
124	; # in the server.
125	# The name of the current colormap used. The colormap is global to all
126	# heightmaps displayed.
127	private variable _currentColormap "" ;
128
129
130	private variable _dataset2style ;# maps dataobj-component to transfunc
131
132	private variable _click ; # info used for rotate operations
133	private variable _limits ; # autoscale min/max for all axes
134	private variable _view ; # view params for 3D view
135	private variable _settings
136	private variable _style; # Array of current component styles.
137	private variable _initialStyle; # Array of initial component styles.
138	private variable _reset 1; # indicates if camera needs to be reset
139	# to starting position.
140
141	private variable _first "" ; # This is the topmost dataset.
142	private variable _start 0
143	private variable _buffering 0
144	private variable _title ""
145
146	common _downloadPopup; # download options from popup
147	private common _hardcopy
148	private variable _width 0
149	private variable _height 0
150	private variable _resizePending 0
151	private variable _rotatePending 0
152	private variable _cutplanePending 0
153	private variable _legendPending 0
154	private variable _field ""
155	private variable _colorMode "vmag"; # Mode of colormap (vmag or scalar)
156	private variable _fieldNames {}
157	private variable _fields
158	private variable _curFldName ""
159	private variable _curFldLabel ""
160	private variable _numContours 10
161	}
162
163	itk::usual VtkIsosurfaceViewer {
164	keep -background -foreground -cursor -font
165	keep -plotbackground -plotforeground
166	}
167
168	# ----------------------------------------------------------------------
169	# CONSTRUCTOR
170	# ----------------------------------------------------------------------
171	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
172	package require vtk
173	set _serverType "vtkvis"
174
175	# Rebuild event
176	$_dispatcher register !rebuild
177	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
178
179	# Resize event
180	$_dispatcher register !resize
181	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
182
183	# Rotate event
184	$_dispatcher register !rotate
185	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
186
187	# Legend event
188	$_dispatcher register !legend
189	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
190
191	# X-Cutplane event
192	$_dispatcher register !xcutplane
193	$_dispatcher dispatch $this !xcutplane \
194	"[itcl::code $this AdjustSetting cutplaneXPosition]; list"
195
196	# Y-Cutplane event
197	$_dispatcher register !ycutplane
198	$_dispatcher dispatch $this !ycutplane \
199	"[itcl::code $this AdjustSetting cutplaneYPosition]; list"
200
201	# Z-Cutplane event
202	$_dispatcher register !zcutplane
203	$_dispatcher dispatch $this !zcutplane \
204	"[itcl::code $this AdjustSetting cutplaneZPosition]; list"
205
206	#
207	# Populate parser with commands handle incoming requests
208	#
209	$_parser alias image [itcl::code $this ReceiveImage]
210	$_parser alias dataset [itcl::code $this ReceiveDataset]
211	$_parser alias legend [itcl::code $this ReceiveLegend]
212	$_parser alias viserror [itcl::code $this ReceiveError]
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 _settings [subst {
230	background black
231	colormapPalette BCGYR
232	colormapVisible 1
233	field "Default"
234	isolineColor white
235	axesVisible 1
236	axisLabelsVisible 1
237	axisXGrid 0
238	axisYGrid 0
239	axisZGrid 0
240	cutplaneEdges 0
241	cutplaneLighting 1
242	cutplaneOpacity 100
243	cutplaneVisible 0
244	cutplaneWireframe 0
245	cutplaneXPosition 50
246	cutplaneXVisible 1
247	cutplaneYPosition 50
248	cutplaneYVisible 1
249	cutplaneZPosition 50
250	cutplaneZVisible 1
251	isosurfaceEdges 0
252	isosurfaceLighting 1
253	isosurfaceOpacity 60
254	isosurfaceOutline 0
255	isosurfaceVisible 1
256	isosurfaceWireframe 0
257	legendVisible 1
258	}]
259
260	itk_component add view {
261	canvas $itk_component(plotarea).view \
262	-highlightthickness 0 -borderwidth 0
263	} {
264	usual
265	ignore -highlightthickness -borderwidth -background
266	}
267
268	itk_component add fieldmenu {
269	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
270	-tearoff no
271	} {
272	usual
273	ignore -background -foreground -relief -tearoff
274	}
275	set c $itk_component(view)
276	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
277	bind $c <4> [itcl::code $this Zoom in 0.25]
278	bind $c <5> [itcl::code $this Zoom out 0.25]
279	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
280	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
281	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
282	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
283	bind $c <Enter> "focus %W"
284	bind $c <Control-F1> [itcl::code $this ToggleConsole]
285
286	# Fix the scrollregion in case we go off screen
287	$c configure -scrollregion [$c bbox all]
288
289	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
290	set _map(cwidth) -1
291	set _map(cheight) -1
292	set _map(zoom) 1.0
293	set _map(original) ""
294
295	set f [$itk_component(main) component controls]
296	itk_component add reset {
297	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
298	-highlightthickness 0 \
299	-image [Rappture::icon reset-view] \
300	-command [itcl::code $this Zoom reset]
301	} {
302	usual
303	ignore -highlightthickness
304	}
305	pack $itk_component(reset) -side top -padx 2 -pady 2
306	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
307
308	itk_component add zoomin {
309	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
310	-highlightthickness 0 \
311	-image [Rappture::icon zoom-in] \
312	-command [itcl::code $this Zoom in]
313	} {
314	usual
315	ignore -highlightthickness
316	}
317	pack $itk_component(zoomin) -side top -padx 2 -pady 2
318	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
319
320	itk_component add zoomout {
321	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
322	-highlightthickness 0 \
323	-image [Rappture::icon zoom-out] \
324	-command [itcl::code $this Zoom out]
325	} {
326	usual
327	ignore -highlightthickness
328	}
329	pack $itk_component(zoomout) -side top -padx 2 -pady 2
330	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
331
332	itk_component add contour {
333	Rappture::PushButton $f.contour \
334	-onimage [Rappture::icon volume-on] \
335	-offimage [Rappture::icon volume-off] \
336	-variable [itcl::scope _settings(isosurfaceVisible)] \
337	-command [itcl::code $this AdjustSetting isosurfaceVisible]
338	}
339	$itk_component(contour) select
340	Rappture::Tooltip::for $itk_component(contour) \
341	"Don't display the isosurface"
342	pack $itk_component(contour) -padx 2 -pady 2
343
344	itk_component add cutplane {
345	Rappture::PushButton $f.cutplane \
346	-onimage [Rappture::icon cutbutton] \
347	-offimage [Rappture::icon cutbutton] \
348	-variable [itcl::scope _settings(cutplaneVisible)] \
349	-command [itcl::code $this AdjustSetting cutplaneVisible]
350	}
351	Rappture::Tooltip::for $itk_component(cutplane) \
352	"Show/Hide cutplanes"
353	pack $itk_component(cutplane) -padx 2 -pady 2
354
355
356	if { [catch {
357	BuildIsosurfaceTab
358	BuildCutplaneTab
359	BuildAxisTab
360	BuildCameraTab
361	} errs] != 0 } {
362	puts stderr errs=$errs
363	}
364	# Legend
365
366	set _image(legend) [image create photo]
367	itk_component add legend {
368	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
369	} {
370	usual
371	ignore -highlightthickness
372	rename -background -plotbackground plotBackground Background
373	}
374
375	# Hack around the Tk panewindow. The problem is that the requested
376	# size of the 3d view isn't set until an image is retrieved from
377	# the server. So the panewindow uses the tiny size.
378	set w 10000
379	pack forget $itk_component(view)
380	blt::table $itk_component(plotarea) \
381	0,0 $itk_component(view) -fill both -reqwidth $w
382	blt::table configure $itk_component(plotarea) c1 -resize none
383
384	# Bindings for rotation via mouse
385	bind $itk_component(view) <ButtonPress-1> \
386	[itcl::code $this Rotate click %x %y]
387	bind $itk_component(view) <B1-Motion> \
388	[itcl::code $this Rotate drag %x %y]
389	bind $itk_component(view) <ButtonRelease-1> \
390	[itcl::code $this Rotate release %x %y]
391	bind $itk_component(view) <Configure> \
392	[itcl::code $this EventuallyResize %w %h]
393
394	if 0 {
395	bind $itk_component(view) <Configure> \
396	[itcl::code $this EventuallyResize %w %h]
397	}
398	# Bindings for panning via mouse
399	bind $itk_component(view) <ButtonPress-2> \
400	[itcl::code $this Pan click %x %y]
401	bind $itk_component(view) <B2-Motion> \
402	[itcl::code $this Pan drag %x %y]
403	bind $itk_component(view) <ButtonRelease-2> \
404	[itcl::code $this Pan release %x %y]
405
406	bind $itk_component(view) <ButtonRelease-3> \
407	[itcl::code $this Pick %x %y]
408
409	# Bindings for panning via keyboard
410	bind $itk_component(view) <KeyPress-Left> \
411	[itcl::code $this Pan set -10 0]
412	bind $itk_component(view) <KeyPress-Right> \
413	[itcl::code $this Pan set 10 0]
414	bind $itk_component(view) <KeyPress-Up> \
415	[itcl::code $this Pan set 0 -10]
416	bind $itk_component(view) <KeyPress-Down> \
417	[itcl::code $this Pan set 0 10]
418	bind $itk_component(view) <Shift-KeyPress-Left> \
419	[itcl::code $this Pan set -2 0]
420	bind $itk_component(view) <Shift-KeyPress-Right> \
421	[itcl::code $this Pan set 2 0]
422	bind $itk_component(view) <Shift-KeyPress-Up> \
423	[itcl::code $this Pan set 0 -2]
424	bind $itk_component(view) <Shift-KeyPress-Down> \
425	[itcl::code $this Pan set 0 2]
426
427	# Bindings for zoom via keyboard
428	bind $itk_component(view) <KeyPress-Prior> \
429	[itcl::code $this Zoom out]
430	bind $itk_component(view) <KeyPress-Next> \
431	[itcl::code $this Zoom in]
432
433	bind $itk_component(view) <Enter> "focus $itk_component(view)"
434
435	if {[string equal "x11" [tk windowingsystem]]} {
436	# Bindings for zoom via mouse
437	bind $itk_component(view) <4> [itcl::code $this Zoom out]
438	bind $itk_component(view) <5> [itcl::code $this Zoom in]
439	}
440
441	set _image(download) [image create photo]
442
443	eval itk_initialize $args
444	Connect
445	update
446	}
447
448	# ----------------------------------------------------------------------
449	# DESTRUCTOR
450	# ----------------------------------------------------------------------
451	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
452	Disconnect
453	image delete $_image(plot)
454	image delete $_image(download)
455	catch { blt::arcball destroy $_arcball }
456	}
457
458	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
459	if { $_width < 2 } {
460	set _width 500
461	}
462	if { $_height < 2 } {
463	set _height 500
464	}
465	set _start [clock clicks -milliseconds]
466	SendCmd "screen size $_width $_height"
467
468	#SendCmd "imgflush"
469
470	# Must reset camera to have object scaling to take effect.
471	#SendCmd "camera reset"
472	#SendCmd "camera zoom $_view(zoom)"
473	EventuallyRequestLegend
474	set _resizePending 0
475	}
476
477	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
478	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
479	SendCmd "camera orient $q"
480	set _rotatePending 0
481	}
482
483	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
484	if { !$_legendPending } {
485	set _legendPending 1
486	$_dispatcher event -idle !legend
487	}
488	}
489
490	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
491	set _width $w
492	set _height $h
493	$_arcball resize $w $h
494	if { !$_resizePending } {
495	set _resizePending 1
496	$_dispatcher event -after 400 !resize
497	}
498	}
499
500	set rotate_delay 100
501
502	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
503	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
504	if { !$_rotatePending } {
505	set _rotatePending 1
506	global rotate_delay
507	$_dispatcher event -after $rotate_delay !rotate
508	}
509	}
510
511	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
512	if { !$_cutplanePending } {
513	set _cutplanePending 1
514	$_dispatcher event -after 100 !${axis}cutplane
515	}
516	}
517
518	# ----------------------------------------------------------------------
519	# USAGE: add <dataobj> ?<settings>?
520	#
521	# Clients use this to add a data object to the plot. The optional
522	# <settings> are used to configure the plot. Allowed settings are
523	# -color, -brightness, -width, -linestyle, and -raise.
524	# ----------------------------------------------------------------------
525	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
526	array set params {
527	-color auto
528	-width 1
529	-linestyle solid
530	-brightness 0
531	-raise 0
532	-description ""
533	-param ""
534	-type ""
535	}
536	array set params $settings
537	set params(-description) ""
538	set params(-param) ""
539	foreach {opt val} $settings {
540	if {![info exists params($opt)]} {
541	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
542	}
543	set params($opt) $val
544	}
545	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
546	# can't handle -autocolors yet
547	set params(-color) black
548	}
549	set pos [lsearch -exact $dataobj $_dlist]
550	if {$pos < 0} {
551	lappend _dlist $dataobj
552	}
553	set _obj2ovride($dataobj-color) $params(-color)
554	set _obj2ovride($dataobj-width) $params(-width)
555	set _obj2ovride($dataobj-raise) $params(-raise)
556	$_dispatcher event -idle !rebuild
557	}
558
559
560	# ----------------------------------------------------------------------
561	# USAGE: delete ?<dataobj1> <dataobj2> ...?
562	#
563	# Clients use this to delete a dataobj from the plot. If no dataobjs
564	# are specified, then all dataobjs are deleted. No data objects are
565	# deleted. They are only removed from the display list.
566	#
567	# ----------------------------------------------------------------------
568	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
569	if { [llength $args] == 0} {
570	set args $_dlist
571	}
572	# Delete all specified dataobjs
573	set changed 0
574	foreach dataobj $args {
575	set pos [lsearch -exact $_dlist $dataobj]
576	if { $pos < 0 } {
577	continue; # Don't know anything about it.
578	}
579	# Remove it from the dataobj list.
580	set _dlist [lreplace $_dlist $pos $pos]
581	SendCmd "contour3d visible 0"
582	array unset _obj2ovride $dataobj-*
583	array unset _settings $dataobj-*
584	# Append to the end of the dataobj list.
585	lappend _dlist $dataobj
586	set changed 1
587	}
588	# If anything changed, then rebuild the plot
589	if { $changed } {
590	$_dispatcher event -idle !rebuild
591	}
592	}
593
594	# ----------------------------------------------------------------------
595	# USAGE: get ?-objects?
596	# USAGE: get ?-visible?
597	# USAGE: get ?-image view?
598	#
599	# Clients use this to query the list of objects being plotted, in
600	# order from bottom to top of this result. The optional "-image"
601	# flag can also request the internal images being shown.
602	# ----------------------------------------------------------------------
603	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
604	if {[llength $args] == 0} {
605	set args "-objects"
606	}
607
608	set op [lindex $args 0]
609	switch -- $op {
610	"-objects" {
611	# put the dataobj list in order according to -raise options
612	set dlist {}
613	foreach dataobj $_dlist {
614	if { ![IsValidObject $dataobj] } {
615	continue
616	}
617	if {[info exists _obj2ovride($dataobj-raise)] &&
618	$_obj2ovride($dataobj-raise)} {
619	set dlist [linsert $dlist 0 $dataobj]
620	} else {
621	lappend dlist $dataobj
622	}
623	}
624	return $dlist
625	}
626	"-visible" {
627	set dlist {}
628	foreach dataobj $_dlist {
629	if { ![IsValidObject $dataobj] } {
630	continue
631	}
632	if { ![info exists _obj2ovride($dataobj-raise)] } {
633	# No setting indicates that the object isn't visible.
634	continue
635	}
636	# Otherwise use the -raise parameter to put the object to
637	# the front of the list.
638	if { $_obj2ovride($dataobj-raise) } {
639	set dlist [linsert $dlist 0 $dataobj]
640	} else {
641	lappend dlist $dataobj
642	}
643	}
644	return $dlist
645	}
646	-image {
647	if {[llength $args] != 2} {
648	error "wrong # args: should be \"get -image view\""
649	}
650	switch -- [lindex $args end] {
651	view {
652	return $_image(plot)
653	}
654	default {
655	error "bad image name \"[lindex $args end]\": should be view"
656	}
657	}
658	}
659	default {
660	error "bad option \"$op\": should be -objects or -image"
661	}
662	}
663	}
664
665	# ----------------------------------------------------------------------
666	# USAGE: scale ?<data1> <data2> ...?
667	#
668	# Sets the default limits for the overall plot according to the
669	# limits of the data for all of the given <data> objects. This
670	# accounts for all objects--even those not showing on the screen.
671	# Because of this, the limits are appropriate for all objects as
672	# the user scans through data in the ResultSet viewer.
673	# ----------------------------------------------------------------------
674	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
675	array unset _limits
676	foreach dataobj $args {
677	set string [limits $dataobj]
678	if { $string == "" } {
679	continue
680	}
681	array set lim $string
682	foreach axis { x y z v } {
683	set min ${axis}min
684	set max ${axis}max
685	if {![info exists _limits($min)] \|\| $_limits($min) > $lim($min)} {
686	set _limits($min) $lim($min)
687	}
688	if {![info exists _limits($max)] \|\| $_limits($max) < $lim($max)} {
689	set _limits($max) $lim($max)
690	}
691	}
692	}
693	}
694
695	# ----------------------------------------------------------------------
696	# USAGE: download coming
697	# USAGE: download controls <downloadCommand>
698	# USAGE: download now
699	#
700	# Clients use this method to create a downloadable representation
701	# of the plot. Returns a list of the form {ext string}, where
702	# "ext" is the file extension (indicating the type of data) and
703	# "string" is the data itself.
704	# ----------------------------------------------------------------------
705	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
706	switch $option {
707	coming {
708	if {[catch {
709	blt::winop snap $itk_component(plotarea) $_image(download)
710	}]} {
711	$_image(download) configure -width 1 -height 1
712	$_image(download) put #000000
713	}
714	}
715	controls {
716	set popup .vtkviewerdownload
717	if { ![winfo exists .vtkviewerdownload] } {
718	set inner [BuildDownloadPopup $popup [lindex $args 0]]
719	} else {
720	set inner [$popup component inner]
721	}
722	set _downloadPopup(image_controls) $inner.image_frame
723	set num [llength [get]]
724	set num [expr {($num == 1) ? "1 result" : "$num results"}]
725	set word [Rappture::filexfer::label downloadWord]
726	$inner.summary configure -text "$word $num in the following format:"
727	update idletasks ;# Fix initial sizes
728	return $popup
729	}
730	now {
731	set popup .vtkviewerdownload
732	if {[winfo exists .vtkviewerdownload]} {
733	$popup deactivate
734	}
735	switch -- $_downloadPopup(format) {
736	"image" {
737	return [$this GetImage [lindex $args 0]]
738	}
739	"vtk" {
740	return [$this GetVtkData [lindex $args 0]]
741	}
742	}
743	return ""
744	}
745	default {
746	error "bad option \"$option\": should be coming, controls, now"
747	}
748	}
749	}
750
751	# ----------------------------------------------------------------------
752	# USAGE: Connect ?<host:port>,<host:port>...?
753	#
754	# Clients use this method to establish a connection to a new
755	# server, or to reestablish a connection to the previous server.
756	# Any existing connection is automatically closed.
757	# ----------------------------------------------------------------------
758	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
759	set _hosts [GetServerList "vtkvis"]
760	if { "" == $_hosts } {
761	return 0
762	}
763	set result [VisViewer::Connect $_hosts]
764	if { $result } {
765	set w [winfo width $itk_component(view)]
766	set h [winfo height $itk_component(view)]
767	EventuallyResize $w $h
768	}
769	return $result
770	}
771
772	#
773	# isconnected --
774	#
775	# Indicates if we are currently connected to the visualization server.
776	#
777	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
778	return [VisViewer::IsConnected]
779	}
780
781	#
782	# disconnect --
783	#
784	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
785	Disconnect
786	set _reset 1
787	}
788
789	#
790	# Disconnect --
791	#
792	# Clients use this method to disconnect from the current rendering
793	# server.
794	#
795	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
796	VisViewer::Disconnect
797
798	$_dispatcher cancel !rebuild
799	$_dispatcher cancel !resize
800	$_dispatcher cancel !rotate
801	$_dispatcher cancel !xcutplane
802	$_dispatcher cancel !ycutplane
803	$_dispatcher cancel !zcutplane
804	$_dispatcher cancel !legend
805	# disconnected -- no more data sitting on server
806	set _outbuf ""
807	array unset _datasets
808	array unset _data
809	array unset _colormaps
810	array unset _seeds
811	array unset _dataset2style
812	array unset _obj2datasets
813	}
814
815	#
816	# sendto --
817	#
818	itcl::body Rappture::VtkIsosurfaceViewer::sendto { bytes } {
819	SendBytes "$bytes\n"
820	StartWaiting
821	}
822
823	#
824	# SendCmd
825	#
826	# Send commands off to the rendering server. If we're currently
827	# sending data objects to the server, buffer the commands to be
828	# sent later.
829	#
830	itcl::body Rappture::VtkIsosurfaceViewer::SendCmd {string} {
831	if { $_buffering } {
832	append _outbuf $string "\n"
833	} else {
834	SendBytes "$string\n"
835	StartWaiting
836	}
837	}
838
839	#
840	# SendCmdNoWait
841	#
842	# Send commands off to the rendering server. If we're currently
843	# sending data objects to the server, buffer the commands to be
844	# sent later.
845	#
846	itcl::body Rappture::VtkIsosurfaceViewer::SendCmdNoWait {string} {
847	if { $_buffering } {
848	append _outbuf $string "\n"
849	} else {
850	SendBytes "$string\n"
851	}
852	}
853
854	# ----------------------------------------------------------------------
855	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
856	#
857	# Invoked automatically whenever the "image" command comes in from
858	# the rendering server. Indicates that binary image data with the
859	# specified <size> will follow.
860	# ----------------------------------------------------------------------
861	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
862	array set info {
863	-token "???"
864	-bytes 0
865	-type image
866	}
867	array set info $args
868	set bytes [ReceiveBytes $info(-bytes)]
869	StopWaiting
870	if { $info(-type) == "image" } {
871	if 0 {
872	set f [open "last.ppm" "w"]
873	puts $f $bytes
874	close $f
875	}
876	$_image(plot) configure -data $bytes
877	set time [clock seconds]
878	set date [clock format $time]
879	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
880	if { $_start > 0 } {
881	set finish [clock clicks -milliseconds]
882	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
883	set _start 0
884	}
885	} elseif { $info(type) == "print" } {
886	set tag $this-print-$info(-token)
887	set _hardcopy($tag) $bytes
888	}
889	EventuallyRequestLegend
890	}
891
892	#
893	# ReceiveDataset --
894	#
895	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
896	if { ![isconnected] } {
897	return
898	}
899	set option [lindex $args 0]
900	switch -- $option {
901	"scalar" {
902	set option [lindex $args 1]
903	switch -- $option {
904	"world" {
905	foreach { x y z value tag } [lrange $args 2 end] break
906	}
907	"pixel" {
908	foreach { x y value tag } [lrange $args 2 end] break
909	}
910	}
911	}
912	"vector" {
913	set option [lindex $args 1]
914	switch -- $option {
915	"world" {
916	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
917	}
918	"pixel" {
919	foreach { x y vx vy vz tag } [lrange $args 2 end] break
920	}
921	}
922	}
923	"names" {
924	foreach { name } [lindex $args 1] {
925	#puts stderr "Dataset: $name"
926	}
927	}
928	default {
929	error "unknown dataset option \"$option\" from server"
930	}
931	}
932	}
933
934	# ----------------------------------------------------------------------
935	# USAGE: Rebuild
936	#
937	# Called automatically whenever something changes that affects the
938	# data in the widget. Clears any existing data and rebuilds the
939	# widget to display new data.
940	# ----------------------------------------------------------------------
941	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
942	update
943	set w [winfo width $itk_component(view)]
944	set h [winfo height $itk_component(view)]
945	if { $w < 2 \|\| $h < 2 } {
946	$_dispatcher event -idle !rebuild
947	return
948	}
949
950	# Turn on buffering of commands to the server. We don't want to
951	# be preempted by a server disconnect/reconnect (which automatically
952	# generates a new call to Rebuild).
953	set _buffering 1
954
955	if { $_reset } {
956	if 1 {
957	# Tell the server the name of the tool, the version, and dataset
958	# that we are rendering. Have to do it here because we don't know
959	# what data objects are using the renderer until be get here.
960	global env
961
962	set info {}
963	set user "???"
964	if { [info exists env(USER)] } {
965	set user $env(USER)
966	}
967	set session "???"
968	if { [info exists env(SESSION)] } {
969	set session $env(SESSION)
970	}
971	lappend info "hub" [exec hostname]
972	lappend info "client" "vtkisosurfaceviewer"
973	lappend info "user" $user
974	lappend info "session" $session
975	SendCmd "clientinfo [list $info]"
976	}
977	set _width $w
978	set _height $h
979	$_arcball resize $w $h
980	DoResize
981	#
982	# Reset the camera and other view parameters
983	#
984	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
985	$_arcball quaternion $q
986	if {$_view(ortho)} {
987	SendCmd "camera mode ortho"
988	} else {
989	SendCmd "camera mode persp"
990	}
991	DoRotate
992	PanCamera
993	set _first ""
994	InitSettings axisXGrid axisYGrid axisZGrid axisMode \
995	axesVisible axisLabelsVisible
996
997	SendCmd "imgflush"
998	}
999	set _first ""
1000	foreach dataobj [get -objects] {
1001	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1002	set _first $dataobj
1003	}
1004	set _obj2datasets($dataobj) ""
1005	foreach comp [$dataobj components] {
1006	set tag $dataobj-$comp
1007	if { ![info exists _datasets($tag)] } {
1008	set bytes [$dataobj vtkdata $comp]
1009	if 0 {
1010	set f [open "/tmp/isosurface.vtk" "w"]
1011	puts $f $bytes
1012	close $f
1013	}
1014	set length [string length $bytes]
1015	if 1 {
1016	set info {}
1017	lappend info "tool_id" [$dataobj hints toolId]
1018	lappend info "tool_name" [$dataobj hints toolName]
1019	lappend info "tool_version" [$dataobj hints toolRevision]
1020	lappend info "tool_title" [$dataobj hints toolTitle]
1021	lappend info "dataset_label" [$dataobj hints label]
1022	lappend info "dataset_size" $length
1023	lappend info "dataset_tag" $tag
1024	SendCmd "clientinfo [list $info]"
1025	}
1026	append _outbuf "dataset add $tag data follows $length\n"
1027	append _outbuf $bytes
1028	set _datasets($tag) 1
1029	SetObjectStyle $dataobj $comp
1030	}
1031	lappend _obj2datasets($dataobj) $tag
1032	if { [info exists _obj2ovride($dataobj-raise)] } {
1033	SendCmd "contour3d visible 1 $tag"
1034	#SendCmd "dataset visible 1 $tag"
1035	} else {
1036	SendCmd "contour3d visible 0 $tag"
1037	#SendCmd "dataset visible 0 $tag"
1038	}
1039	}
1040	}
1041	if { $_first != "" } {
1042	$itk_component(field) choices delete 0 end
1043	$itk_component(fieldmenu) delete 0 end
1044	array unset _fields
1045	foreach cname [$_first components] {
1046	foreach fname [$_first fieldnames $cname] {
1047	if { [info exists _fields($fname)] } {
1048	continue
1049	}
1050	foreach { label units components } \
1051	[$_first fieldinfo $fname] break
1052	$itk_component(field) choices insert end "$fname" "$label"
1053	$itk_component(fieldmenu) add radiobutton -label "$label" \
1054	-value $label -variable [itcl::scope _curFldLabel] \
1055	-selectcolor red \
1056	-activebackground $itk_option(-plotbackground) \
1057	-activeforeground $itk_option(-plotforeground) \
1058	-font "Arial 8" \
1059	-command [itcl::code $this Combo invoke]
1060	set _fields($fname) [list $label $units $components]
1061	set _curFldName $fname
1062	set _curFldLabel $label
1063	}
1064	}
1065	$itk_component(field) value $_curFldLabel
1066	}
1067	InitSettings isosurfaceVisible colormapPalette isosurfaceVisible
1068
1069	if { $_reset } {
1070	# These are settings that rely on a dataset being loaded.
1071	InitSettings \
1072	isosurfaceLighting \
1073	field \
1074	isosurfaceEdges isosurfaceLighting isosurfaceOpacity \
1075	isosurfaceWireframe isosurfaceOutline \
1076	cutplaneXPosition cutplaneYPosition cutplaneZPosition \
1077	cutplaneXVisible cutplaneYVisible cutplaneZVisible \
1078	cutplaneVisible
1079	Zoom reset
1080	foreach axis { x y z } {
1081	# Another problem fixed by a <view>. We looking into a data
1082	# object for the name of the axes. This should be global to
1083	# the viewer itself.
1084	set label [$_first hints ${axis}label]
1085	if { $label == "" } {
1086	if {$axis == "z"} {
1087	if { $_curFldName == "component" } {
1088	set label [string toupper $axis]
1089	} else {
1090	set label $_curFldLabel
1091	}
1092	} else {
1093	set label [string toupper $axis]
1094	}
1095	}
1096	# May be a space in the axis label.
1097	SendCmd [list axis name $axis $label]
1098	}
1099	set _reset 0
1100	}
1101	set _buffering 0; # Turn off buffering.
1102
1103	# Actually write the commands to the server socket. If it fails, we don't
1104	# care. We're finished here.
1105	blt::busy hold $itk_component(hull)
1106	sendto $_outbuf;
1107	blt::busy release $itk_component(hull)
1108	set _outbuf ""; # Clear the buffer.
1109	}
1110
1111	# ----------------------------------------------------------------------
1112	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1113	#
1114	# Returns a list of server IDs for the current datasets being displayed. This
1115	# is normally a single ID, but it might be a list of IDs if the current data
1116	# object has multiple components.
1117	# ----------------------------------------------------------------------
1118	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1119	set flag [lindex $args 0]
1120	switch -- $flag {
1121	"-all" {
1122	if { [llength $args] > 1 } {
1123	error "CurrentDatasets: can't specify dataobj after \"-all\""
1124	}
1125	set dlist [get -objects]
1126	}
1127	"-visible" {
1128	if { [llength $args] > 1 } {
1129	set dlist {}
1130	set args [lrange $args 1 end]
1131	foreach dataobj $args {
1132	if { [info exists _obj2ovride($dataobj-raise)] } {
1133	lappend dlist $dataobj
1134	}
1135	}
1136	} else {
1137	set dlist [get -visible]
1138	}
1139	}
1140	default {
1141	set dlist $args
1142	}
1143	}
1144	set rlist ""
1145	foreach dataobj $dlist {
1146	foreach comp [$dataobj components] {
1147	set tag $dataobj-$comp
1148	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1149	lappend rlist $tag
1150	}
1151	}
1152	}
1153	return $rlist
1154	}
1155
1156	# ----------------------------------------------------------------------
1157	# USAGE: Zoom in
1158	# USAGE: Zoom out
1159	# USAGE: Zoom reset
1160	#
1161	# Called automatically when the user clicks on one of the zoom
1162	# controls for this widget. Changes the zoom for the current view.
1163	# ----------------------------------------------------------------------
1164	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1165	switch -- $option {
1166	"in" {
1167	set _view(zoom) [expr {$_view(zoom)*1.25}]
1168	SendCmd "camera zoom $_view(zoom)"
1169	}
1170	"out" {
1171	set _view(zoom) [expr {$_view(zoom)*0.8}]
1172	SendCmd "camera zoom $_view(zoom)"
1173	}
1174	"reset" {
1175	array set _view {
1176	qw 0.853553
1177	qx -0.353553
1178	qy 0.353553
1179	qz 0.146447
1180	zoom 1.0
1181	xpan 0
1182	ypan 0
1183	}
1184	if { $_first != "" } {
1185	set location [$_first hints camera]
1186	if { $location != "" } {
1187	array set _view $location
1188	}
1189	}
1190	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1191	$_arcball quaternion $q
1192	SendCmd "camera reset"
1193	DoRotate
1194	}
1195	}
1196	}
1197
1198	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1199	set x $_view(xpan)
1200	set y $_view(ypan)
1201	SendCmd "camera pan $x $y"
1202	}
1203
1204
1205	# ----------------------------------------------------------------------
1206	# USAGE: Rotate click <x> <y>
1207	# USAGE: Rotate drag <x> <y>
1208	# USAGE: Rotate release <x> <y>
1209	#
1210	# Called automatically when the user clicks/drags/releases in the
1211	# plot area. Moves the plot according to the user's actions.
1212	# ----------------------------------------------------------------------
1213	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1214	switch -- $option {
1215	"click" {
1216	$itk_component(view) configure -cursor fleur
1217	set _click(x) $x
1218	set _click(y) $y
1219	}
1220	"drag" {
1221	if {[array size _click] == 0} {
1222	Rotate click $x $y
1223	} else {
1224	set w [winfo width $itk_component(view)]
1225	set h [winfo height $itk_component(view)]
1226	if {$w <= 0 \|\| $h <= 0} {
1227	return
1228	}
1229
1230	if {[catch {
1231	# this fails sometimes for no apparent reason
1232	set dx [expr {double($x-$_click(x))/$w}]
1233	set dy [expr {double($y-$_click(y))/$h}]
1234	}]} {
1235	return
1236	}
1237	if { $dx == 0 && $dy == 0 } {
1238	return
1239	}
1240	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1241	EventuallyRotate $q
1242	set _click(x) $x
1243	set _click(y) $y
1244	}
1245	}
1246	"release" {
1247	Rotate drag $x $y
1248	$itk_component(view) configure -cursor ""
1249	catch {unset _click}
1250	}
1251	default {
1252	error "bad option \"$option\": should be click, drag, release"
1253	}
1254	}
1255	}
1256
1257	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1258	foreach tag [CurrentDatasets -visible] {
1259	SendCmdNoSplash "dataset getscalar pixel $x $y $tag"
1260	}
1261	}
1262
1263	# ----------------------------------------------------------------------
1264	# USAGE: $this Pan click x y
1265	# $this Pan drag x y
1266	# $this Pan release x y
1267	#
1268	# Called automatically when the user clicks on one of the zoom
1269	# controls for this widget. Changes the zoom for the current view.
1270	# ----------------------------------------------------------------------
1271	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1272	switch -- $option {
1273	"set" {
1274	set w [winfo width $itk_component(view)]
1275	set h [winfo height $itk_component(view)]
1276	set x [expr $x / double($w)]
1277	set y [expr $y / double($h)]
1278	set _view(xpan) [expr $_view(xpan) + $x]
1279	set _view(ypan) [expr $_view(ypan) + $y]
1280	PanCamera
1281	return
1282	}
1283	"click" {
1284	set _click(x) $x
1285	set _click(y) $y
1286	$itk_component(view) configure -cursor hand1
1287	}
1288	"drag" {
1289	if { ![info exists _click(x)] } {
1290	set _click(x) $x
1291	}
1292	if { ![info exists _click(y)] } {
1293	set _click(y) $y
1294	}
1295	set w [winfo width $itk_component(view)]
1296	set h [winfo height $itk_component(view)]
1297	set dx [expr ($_click(x) - $x)/double($w)]
1298	set dy [expr ($_click(y) - $y)/double($h)]
1299	set _click(x) $x
1300	set _click(y) $y
1301	set _view(xpan) [expr $_view(xpan) - $dx]
1302	set _view(ypan) [expr $_view(ypan) - $dy]
1303	PanCamera
1304	}
1305	"release" {
1306	Pan drag $x $y
1307	$itk_component(view) configure -cursor ""
1308	}
1309	default {
1310	error "unknown option \"$option\": should set, click, drag, or release"
1311	}
1312	}
1313	}
1314
1315	# ----------------------------------------------------------------------
1316	# USAGE: InitSettings <what> ?<value>?
1317	#
1318	# Used internally to update rendering settings whenever parameters
1319	# change in the popup settings panel. Sends the new settings off
1320	# to the back end.
1321	# ----------------------------------------------------------------------
1322	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1323	foreach spec $args {
1324	if { [info exists _settings($_first-$spec)] } {
1325	# Reset global setting with dataobj specific setting
1326	set _settings($spec) $_settings($_first-$spec)
1327	}
1328	AdjustSetting $spec
1329	}
1330	}
1331
1332	#
1333	# AdjustSetting --
1334	#
1335	# Changes/updates a specific setting in the widget. There are
1336	# usually user-setable option. Commands are sent to the render
1337	# server.
1338	#
1339	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1340	if { ![isconnected] } {
1341	return
1342	}
1343	switch -- $what {
1344	"isosurfaceOpacity" {
1345	set val $_settings(isosurfaceOpacity)
1346	set sval [expr { 0.01 * double($val) }]
1347	SendCmd "contour3d opacity $sval"
1348	}
1349	"isosurfaceWireframe" {
1350	set bool $_settings(isosurfaceWireframe)
1351	SendCmd "contour3d wireframe $bool"
1352	}
1353	"isosurfaceVisible" {
1354	set bool $_settings(isosurfaceVisible)
1355	SendCmd "contour3d visible $bool"
1356	if { $bool } {
1357	Rappture::Tooltip::for $itk_component(contour) \
1358	"Hide the isosurface"
1359	} else {
1360	Rappture::Tooltip::for $itk_component(contour) \
1361	"Show the isosurface"
1362	}
1363	}
1364	"isosurfaceLighting" {
1365	set bool $_settings(isosurfaceLighting)
1366	SendCmd "contour3d lighting $bool"
1367	}
1368	"isosurfaceEdges" {
1369	set bool $_settings(isosurfaceEdges)
1370	SendCmd "contour3d edges $bool"
1371	}
1372	"isosurfaceOutline" {
1373	set bool $_settings(isosurfaceOutline)
1374	SendCmd "dataset outline $bool"
1375	}
1376	"background" {
1377	set bgcolor [$itk_component(background) value]
1378	array set fgcolors {
1379	"black" "white"
1380	"white" "black"
1381	"grey" "black"
1382	}
1383	configure -plotbackground $bgcolor \
1384	-plotforeground $fgcolors($bgcolor)
1385	$itk_component(view) delete "legend"
1386	DrawLegend $_curFldName
1387	}
1388	"axesVisible" {
1389	set bool $_settings(axesVisible)
1390	SendCmd "axis visible all $bool"
1391	}
1392	"axisLabelsVisible" {
1393	set bool $_settings(axisLabelsVisible)
1394	SendCmd "axis labels all $bool"
1395	}
1396	"axisXGrid" - "axisYGrid" - "axisZGrid" {
1397	set axis [string tolower [string range $what 4 4]]
1398	set bool $_settings($what)
1399	SendCmd "axis grid $axis $bool"
1400	}
1401	"axisMode" {
1402	set mode [$itk_component(axisMode) value]
1403	set mode [$itk_component(axisMode) translate $mode]
1404	set _settings($what) $mode
1405	SendCmd "axis flymode $mode"
1406	}
1407	"cutplaneEdges" {
1408	set bool $_settings($what)
1409	foreach dataset [CurrentDatasets -visible] {
1410	SendCmd "cutplane edges $bool $dataset"
1411	}
1412	}
1413	"cutplaneVisible" {
1414	set bool $_settings($what)
1415	foreach dataset [CurrentDatasets -visible] {
1416	SendCmd "cutplane visible $bool $dataset"
1417	}
1418	}
1419	"cutplaneWireframe" {
1420	set bool $_settings($what)
1421	foreach dataset [CurrentDatasets -visible] {
1422	SendCmd "cutplane wireframe $bool $dataset"
1423	}
1424	}
1425	"cutplaneLighting" {
1426	set bool $_settings($what)
1427	foreach dataset [CurrentDatasets -visible] {
1428	SendCmd "cutplane lighting $bool $dataset"
1429	}
1430	}
1431	"cutplaneOpacity" {
1432	set val $_settings($what)
1433	set sval [expr { 0.01 * double($val) }]
1434	foreach dataset [CurrentDatasets -visible] {
1435	SendCmd "cutplane opacity $sval $dataset"
1436	}
1437	}
1438	"cutplaneXVisible" - "cutplaneYVisible" - "cutplaneZVisible" {
1439	set axis [string tolower [string range $what 8 8]]
1440	set bool $_settings($what)
1441	if { $bool } {
1442	$itk_component(${axis}position) configure -state normal \
1443	-troughcolor white
1444	} else {
1445	$itk_component(${axis}position) configure -state disabled \
1446	-troughcolor grey82
1447	}
1448	SendCmd "cutplane axis $axis $bool"
1449	}
1450	"cutplaneXPosition" - "cutplaneYPosition" - "cutplaneZPosition" {
1451	set axis [string tolower [string range $what 8 8]]
1452	set pos [expr $_settings($what) * 0.01]
1453	foreach dataset [CurrentDatasets -visible] {
1454	SendCmd "cutplane slice ${axis} ${pos} $dataset"
1455	}
1456	set _cutplanePending 0
1457	}
1458	"isosurfaceVisible" {
1459	set bool $_settings($what)
1460	foreach dataset [CurrentDatasets -visible] {
1461	SendCmd "contour3d visible $bool $dataset"
1462	}
1463	set _settings(isosurfaceVisible) $bool
1464	if { $bool } {
1465	Rappture::Tooltip::for $itk_component(contour) \
1466	"Hide the isosurface"
1467	} else {
1468	Rappture::Tooltip::for $itk_component(contour) \
1469	"Show the isosurface"
1470	}
1471	DrawLegend $_curFldName
1472	}
1473	"colormapPalette" {
1474	set color [$itk_component(palette) value]
1475	set _settings(colormapPalette) $color
1476	if { $color == "none" } {
1477	if { $_settings(colormapVisible) } {
1478	SendCmd "contour3d surface 0"
1479	set _settings(colormapVisible) 0
1480	}
1481	} else {
1482	if { !$_settings(colormapVisible) } {
1483	SendCmd "contour3d surface 1"
1484	set _settings(colormapVisible) 1
1485	}
1486	ResetColormap $color
1487	SendCmd "contour3d colormap $_currentColormap"
1488	SendCmd "cutplane colormap $_currentColormap"
1489	}
1490	EventuallyRequestLegend
1491	}
1492	"isolineColor" {
1493	set color [$itk_component(isolineColor) value]
1494	set _settings(isolineColor) $color
1495	DrawLegend $_curFldName
1496	}
1497	"isosurfaceOpacity" {
1498	set val $_settings(isosurfaceOpacity)
1499	set sval [expr { 0.01 * double($val) }]
1500	foreach dataset [CurrentDatasets -visible $_first] {
1501	SendCmd "contour3d opacity $sval $dataset"
1502	}
1503	}
1504	"isosurfaceLighting" {
1505	set bool $_settings(isosurfaceLighting)
1506	foreach dataset [CurrentDatasets -visible $_first] {
1507	SendCmd "contour3d lighting $bool $dataset"
1508	}
1509	}
1510	"field" {
1511	set new [$itk_component(field) value]
1512	set value [$itk_component(field) translate $new]
1513	set _settings(field) $value
1514	if { [info exists _fields($new)] } {
1515	set _colorMode scalar
1516	set _curFldName $new
1517	} else {
1518	puts stderr "unknown field \"$new\""
1519	return
1520	}
1521	EventuallyRequestLegend
1522	}
1523	"legendVisible" {
1524	if { !$_settings(legendVisible) } {
1525	$itk_component(view) delete legend
1526	}
1527	DrawLegend $_settings(field)
1528	}
1529	default {
1530	error "don't know how to fix $what"
1531	}
1532	}
1533	}
1534
1535
1536	#
1537	# RequestLegend --
1538	#
1539	# Request a new legend from the server. The size of the legend
1540	# is determined from the height of the canvas.
1541	#
1542	# This should be called when
1543	# 1. A new current colormap is set.
1544	# 2. Window is resized.
1545	# 3. The limits of the data have changed. (Just need a redraw).
1546	# 4. Number of isolines have changed. (Just need a redraw).
1547	# 5. Legend becomes visible (Just need a redraw).
1548	#
1549	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1550	set _legendPending 0
1551	set font "Arial 8"
1552	set lineht [font metrics $font -linespace]
1553	set c $itk_component(view)
1554	set w 12
1555	set h [expr {$_height - 2 * ($lineht + 2)}]
1556	if { $h < 1} {
1557	return
1558	}
1559	if { [info exists _fields($_curFldName)] } {
1560	set title [lindex $_fields($_curFldName) 0]
1561	if { $title != "component" } {
1562	set h [expr $h - ($lineht + 2)]
1563	}
1564	} else {
1565	return
1566	}
1567	# Set the legend on the first heightmap dataset.
1568	if { $_currentColormap != "" } {
1569	set cmap $_currentColormap
1570	SendCmdNoWait "legend $cmap scalar $title {} $w $h 0"
1571	}
1572	}
1573
1574	#
1575	# BuildColormap --
1576	#
1577	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name stylelist } {
1578	array set style $stylelist
1579	set cmap [ColorsToColormap $style(-color)]
1580	if { [llength $cmap] == 0 } {
1581	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1582	}
1583	if { ![info exists _settings(contour-opacity)] } {
1584	set _settings(contour-opacity) $style(-opacity)
1585	}
1586	set max $_settings(contour-opacity)
1587
1588	set wmap "0.0 1.0 1.0 1.0"
1589	SendCmd "colormap add $name { $cmap } { $wmap }"
1590	}
1591
1592	# ----------------------------------------------------------------------
1593	# CONFIGURATION OPTION: -plotbackground
1594	# ----------------------------------------------------------------------
1595	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1596	if { [isconnected] } {
1597	set rgb [Color2RGB $itk_option(-plotbackground)]
1598	SendCmd "screen bgcolor $rgb"
1599	}
1600	}
1601
1602	# ----------------------------------------------------------------------
1603	# CONFIGURATION OPTION: -plotforeground
1604	# ----------------------------------------------------------------------
1605	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1606	if { [isconnected] } {
1607	set rgb [Color2RGB $itk_option(-plotforeground)]
1608	SendCmd "axis color all $rgb"
1609	SendCmd "dataset color $rgb"
1610	SendCmd "cutplane ccolor $rgb"
1611	}
1612	}
1613
1614	itcl::body Rappture::VtkIsosurfaceViewer::limits { dataobj } {
1615	foreach { limits(xmin) limits(xmax) } [$dataobj limits x] break
1616	foreach { limits(ymin) limits(ymax) } [$dataobj limits y] break
1617	foreach { limits(zmin) limits(zmax) } [$dataobj limits z] break
1618	foreach { limits(vmin) limits(vmax) } [$dataobj limits v] break
1619	return [array get limits]
1620	}
1621
1622	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1623
1624	set fg [option get $itk_component(hull) font Font]
1625	#set bfg [option get $itk_component(hull) boldFont Font]
1626
1627	set inner [$itk_component(main) insert end \
1628	-title "Isosurface Settings" \
1629	-icon [Rappture::icon volume-on]]
1630	$inner configure -borderwidth 4
1631
1632	checkbutton $inner.contour \
1633	-text "Isosurfaces" \
1634	-variable [itcl::scope _settings(isosurfaceVisible)] \
1635	-command [itcl::code $this AdjustSetting isosurfaceVisible] \
1636	-font "Arial 9"
1637
1638	checkbutton $inner.wireframe \
1639	-text "Wireframe" \
1640	-variable [itcl::scope _settings(isosurfaceWireframe)] \
1641	-command [itcl::code $this AdjustSetting isosurfaceWireframe] \
1642	-font "Arial 9"
1643
1644	checkbutton $inner.lighting \
1645	-text "Enable Lighting" \
1646	-variable [itcl::scope _settings(isosurfaceLighting)] \
1647	-command [itcl::code $this AdjustSetting isosurfaceLighting] \
1648	-font "Arial 9"
1649
1650	checkbutton $inner.edges \
1651	-text "Edges" \
1652	-variable [itcl::scope _settings(isosurfaceEdges)] \
1653	-command [itcl::code $this AdjustSetting isosurfaceEdges] \
1654	-font "Arial 9"
1655
1656	checkbutton $inner.outline \
1657	-text "Outline" \
1658	-variable [itcl::scope _settings(isosurfaceOutline)] \
1659	-command [itcl::code $this AdjustSetting isosurfaceOutline] \
1660	-font "Arial 9"
1661
1662	checkbutton $inner.legend \
1663	-text "Legend" \
1664	-variable [itcl::scope _settings(legendVisible)] \
1665	-command [itcl::code $this AdjustSetting legendVisible] \
1666	-font "Arial 9"
1667
1668	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1669	itk_component add isolineColor {
1670	Rappture::Combobox $inner.linecolor -width 10 -editable no
1671	}
1672	$inner.linecolor choices insert end \
1673	"black" "black" \
1674	"blue" "blue" \
1675	"cyan" "cyan" \
1676	"green" "green" \
1677	"grey" "grey" \
1678	"magenta" "magenta" \
1679	"orange" "orange" \
1680	"red" "red" \
1681	"white" "white" \
1682	"none" "none"
1683
1684	$itk_component(isolineColor) value "white"
1685	bind $inner.linecolor <<Value>> \
1686	[itcl::code $this AdjustSetting isolineColor]
1687
1688	label $inner.background_l -text "Background" -font "Arial 9"
1689	itk_component add background {
1690	Rappture::Combobox $inner.background -width 10 -editable no
1691	}
1692	$inner.background choices insert end \
1693	"black" "black" \
1694	"white" "white" \
1695	"grey" "grey"
1696
1697	$itk_component(background) value $_settings(background)
1698	bind $inner.background <<Value>> [itcl::code $this AdjustSetting background]
1699
1700	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1701	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1702	-variable [itcl::scope _settings(isosurfaceOpacity)] \
1703	-width 10 \
1704	-showvalue off \
1705	-command [itcl::code $this AdjustSetting isosurfaceOpacity]
1706
1707	label $inner.scale_l -text "Scale" -font "Arial 9"
1708	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1709	-variable [itcl::scope _settings(contour-scale)] \
1710	-width 10 \
1711	-showvalue off \
1712	-command [itcl::code $this AdjustSetting contour-scale]
1713
1714	label $inner.field_l -text "Field" -font "Arial 9"
1715	itk_component add field {
1716	Rappture::Combobox $inner.field -width 10 -editable no
1717	}
1718	bind $inner.field <<Value>> \
1719	[itcl::code $this AdjustSetting field]
1720
1721	label $inner.palette_l -text "Palette" -font "Arial 9"
1722	itk_component add palette {
1723	Rappture::Combobox $inner.palette -width 10 -editable no
1724	}
1725	$inner.palette choices insert end \
1726	"BCGYR" "BCGYR" \
1727	"BGYOR" "BGYOR" \
1728	"blue" "blue" \
1729	"blue-to-brown" "blue-to-brown" \
1730	"blue-to-orange" "blue-to-orange" \
1731	"blue-to-grey" "blue-to-grey" \
1732	"green-to-magenta" "green-to-magenta" \
1733	"greyscale" "greyscale" \
1734	"nanohub" "nanohub" \
1735	"rainbow" "rainbow" \
1736	"spectral" "spectral" \
1737	"ROYGB" "ROYGB" \
1738	"RYGCB" "RYGCB" \
1739	"brown-to-blue" "brown-to-blue" \
1740	"grey-to-blue" "grey-to-blue" \
1741	"orange-to-blue" "orange-to-blue"
1742
1743	$itk_component(palette) value "BCGYR"
1744	bind $inner.palette <<Value>> \
1745	[itcl::code $this AdjustSetting colormapPalette]
1746
1747	blt::table $inner \
1748	0,0 $inner.palette_l -anchor w -pady 2 \
1749	0,1 $inner.palette -anchor w -pady 2 -fill x \
1750	1,0 $inner.linecolor_l -anchor w -pady 2 \
1751	1,1 $inner.linecolor -anchor w -pady 2 -fill x \
1752	2,0 $inner.background_l -anchor w -pady 2 \
1753	2,1 $inner.background -anchor w -pady 2 -fill x \
1754	3,0 $inner.contour -anchor w -pady 2 -cspan 2 \
1755	4,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1756	5,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1757	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1758	7,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1759	8,0 $inner.legend -anchor w -pady 2 \
1760	9,0 $inner.opacity_l -anchor w -pady 2 \
1761	9,1 $inner.opacity -fill x -pady 2 -fill x \
1762	10,0 $inner.field_l -anchor w -pady 2 \
1763	10,1 $inner.field -anchor w -pady 2 -fill x \
1764
1765	blt::table configure $inner r* c* -resize none
1766	blt::table configure $inner r11 c1 -resize expand
1767	}
1768
1769	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1770
1771	set fg [option get $itk_component(hull) font Font]
1772	#set bfg [option get $itk_component(hull) boldFont Font]
1773
1774	set inner [$itk_component(main) insert end \
1775	-title "Axis Settings" \
1776	-icon [Rappture::icon axis1]]
1777	$inner configure -borderwidth 4
1778
1779	checkbutton $inner.visible \
1780	-text "Show Axes" \
1781	-variable [itcl::scope _settings(axesVisible)] \
1782	-command [itcl::code $this AdjustSetting axesVisible] \
1783	-font "Arial 9"
1784
1785	checkbutton $inner.labels \
1786	-text "Show Axis Labels" \
1787	-variable [itcl::scope _settings(axisLabelsVisible)] \
1788	-command [itcl::code $this AdjustSetting axisLabelsVisible] \
1789	-font "Arial 9"
1790
1791	checkbutton $inner.gridx \
1792	-text "Show X Grid" \
1793	-variable [itcl::scope _settings(axisXGrid)] \
1794	-command [itcl::code $this AdjustSetting axisXGrid] \
1795	-font "Arial 9"
1796	checkbutton $inner.gridy \
1797	-text "Show Y Grid" \
1798	-variable [itcl::scope _settings(axisYGrid)] \
1799	-command [itcl::code $this AdjustSetting axisYGrid] \
1800	-font "Arial 9"
1801	checkbutton $inner.gridz \
1802	-text "Show Z Grid" \
1803	-variable [itcl::scope _settings(axisZGrid)] \
1804	-command [itcl::code $this AdjustSetting axisZGrid] \
1805	-font "Arial 9"
1806
1807	label $inner.mode_l -text "Mode" -font "Arial 9"
1808
1809	itk_component add axisMode {
1810	Rappture::Combobox $inner.mode -width 10 -editable no
1811	}
1812	$inner.mode choices insert end \
1813	"static_triad" "static" \
1814	"closest_triad" "closest" \
1815	"furthest_triad" "furthest" \
1816	"outer_edges" "outer"
1817	$itk_component(axisMode) value "static"
1818	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axisMode]
1819
1820	blt::table $inner \
1821	0,0 $inner.visible -anchor w -cspan 2 \
1822	1,0 $inner.labels -anchor w -cspan 2 \
1823	2,0 $inner.gridx -anchor w -cspan 2 \
1824	3,0 $inner.gridy -anchor w -cspan 2 \
1825	4,0 $inner.gridz -anchor w -cspan 2 \
1826	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1827	6,0 $inner.mode -fill x -cspan 2
1828
1829	blt::table configure $inner r* c* -resize none
1830	blt::table configure $inner r7 c1 -resize expand
1831	}
1832
1833
1834	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1835	set inner [$itk_component(main) insert end \
1836	-title "Camera Settings" \
1837	-icon [Rappture::icon camera]]
1838	$inner configure -borderwidth 4
1839
1840	set labels { qx qy qz qw xpan ypan zoom }
1841	set row 0
1842	foreach tag $labels {
1843	label $inner.${tag}label -text $tag -font "Arial 9"
1844	entry $inner.${tag} -font "Arial 9" -bg white \
1845	-textvariable [itcl::scope _view($tag)]
1846	bind $inner.${tag} <KeyPress-Return> \
1847	[itcl::code $this camera set ${tag}]
1848	blt::table $inner \
1849	$row,0 $inner.${tag}label -anchor e -pady 2 \
1850	$row,1 $inner.${tag} -anchor w -pady 2
1851	blt::table configure $inner r$row -resize none
1852	incr row
1853	}
1854	checkbutton $inner.ortho \
1855	-text "Orthographic Projection" \
1856	-variable [itcl::scope _view(ortho)] \
1857	-command [itcl::code $this camera set ortho] \
1858	-font "Arial 9"
1859	blt::table $inner \
1860	$row,0 $inner.ortho -columnspan 2 -anchor w -pady 2
1861	blt::table configure $inner r$row -resize none
1862	incr row
1863
1864	blt::table configure $inner c0 c1 -resize none
1865	blt::table configure $inner c2 -resize expand
1866	blt::table configure $inner r$row -resize expand
1867	}
1868
1869	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1870
1871	set fg [option get $itk_component(hull) font Font]
1872
1873	set inner [$itk_component(main) insert end \
1874	-title "Cutplane Settings" \
1875	-icon [Rappture::icon cutbutton]]
1876
1877	$inner configure -borderwidth 4
1878
1879	checkbutton $inner.visible \
1880	-text "Cutplanes" \
1881	-variable [itcl::scope _settings(cutplaneVisible)] \
1882	-command [itcl::code $this AdjustSetting cutplaneVisible] \
1883	-font "Arial 9"
1884
1885	checkbutton $inner.wireframe \
1886	-text "Wireframe" \
1887	-variable [itcl::scope _settings(cutplaneWireframe)] \
1888	-command [itcl::code $this AdjustSetting cutplaneWireframe] \
1889	-font "Arial 9"
1890
1891	checkbutton $inner.lighting \
1892	-text "Enable Lighting" \
1893	-variable [itcl::scope _settings(cutplaneLighting)] \
1894	-command [itcl::code $this AdjustSetting cutplaneLighting] \
1895	-font "Arial 9"
1896
1897	checkbutton $inner.edges \
1898	-text "Edges" \
1899	-variable [itcl::scope _settings(cutplaneEdges)] \
1900	-command [itcl::code $this AdjustSetting cutplaneEdges] \
1901	-font "Arial 9"
1902
1903	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1904	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1905	-variable [itcl::scope _settings(cutplaneOpacity)] \
1906	-width 10 \
1907	-showvalue off \
1908	-command [itcl::code $this AdjustSetting cutplaneOpacity]
1909	$inner.opacity set $_settings(cutplaneOpacity)
1910
1911	# X-value slicer...
1912	itk_component add xbutton {
1913	Rappture::PushButton $inner.xbutton \
1914	-onimage [Rappture::icon x-cutplane-red] \
1915	-offimage [Rappture::icon x-cutplane-red] \
1916	-command [itcl::code $this AdjustSetting cutplaneXVisible] \
1917	-variable [itcl::scope _settings(cutplaneXVisible)] \
1918	}
1919	Rappture::Tooltip::for $itk_component(xbutton) \
1920	"Toggle the X-axis cutplane on/off"
1921	$itk_component(xbutton) select
1922	itk_component add xposition {
1923	::scale $inner.xval -from 100 -to 0 \
1924	-width 10 -orient vertical -showvalue yes \
1925	-borderwidth 1 -highlightthickness 0 \
1926	-command [itcl::code $this EventuallySetCutplane x] \
1927	-variable [itcl::scope _settings(cutplaneXPosition)] \
1928	-foreground red2 -font "Arial 9 bold"
1929	} {
1930	usual
1931	ignore -borderwidth -highlightthickness -foreground -font -background
1932	}
1933	# Set the default cutplane value before disabling the scale.
1934	$itk_component(xposition) set 50
1935	$itk_component(xposition) configure -state disabled
1936	Rappture::Tooltip::for $itk_component(xposition) \
1937	"@[itcl::code $this Slice tooltip x]"
1938
1939	# Y-value slicer...
1940	itk_component add ybutton {
1941	Rappture::PushButton $inner.ybutton \
1942	-onimage [Rappture::icon y-cutplane-green] \
1943	-offimage [Rappture::icon y-cutplane-green] \
1944	-command [itcl::code $this AdjustSetting cutplaneYVisible] \
1945	-variable [itcl::scope _settings(cutplaneYVisible)] \
1946	}
1947	Rappture::Tooltip::for $itk_component(ybutton) \
1948	"Toggle the Y-axis cutplane on/off"
1949	$itk_component(ybutton) select
1950
1951	itk_component add yposition {
1952	::scale $inner.yval -from 100 -to 0 \
1953	-width 10 -orient vertical -showvalue yes \
1954	-borderwidth 1 -highlightthickness 0 \
1955	-command [itcl::code $this EventuallySetCutplane y] \
1956	-variable [itcl::scope _settings(cutplaneYPosition)] \
1957	-foreground green3 -font "Arial 9 bold"
1958	} {
1959	usual
1960	ignore -borderwidth -highlightthickness -foreground -font
1961	}
1962	Rappture::Tooltip::for $itk_component(yposition) \
1963	"@[itcl::code $this Slice tooltip y]"
1964	# Set the default cutplane value before disabling the scale.
1965	$itk_component(yposition) set 50
1966	$itk_component(yposition) configure -state disabled
1967
1968	# Z-value slicer...
1969	itk_component add zbutton {
1970	Rappture::PushButton $inner.zbutton \
1971	-onimage [Rappture::icon z-cutplane-blue] \
1972	-offimage [Rappture::icon z-cutplane-blue] \
1973	-command [itcl::code $this AdjustSetting cutplaneZVisible] \
1974	-variable [itcl::scope _settings(cutplaneZVisible)] \
1975	} {
1976	usual
1977	ignore -foreground
1978	}
1979	Rappture::Tooltip::for $itk_component(zbutton) \
1980	"Toggle the Z-axis cutplane on/off"
1981	$itk_component(zbutton) select
1982
1983	itk_component add zposition {
1984	::scale $inner.zval -from 100 -to 0 \
1985	-width 10 -orient vertical -showvalue yes \
1986	-borderwidth 1 -highlightthickness 0 \
1987	-command [itcl::code $this EventuallySetCutplane z] \
1988	-variable [itcl::scope _settings(cutplaneZPosition)] \
1989	-foreground blue3 -font "Arial 9 bold"
1990	} {
1991	usual
1992	ignore -borderwidth -highlightthickness -foreground -font
1993	}
1994	$itk_component(zposition) set 50
1995	$itk_component(zposition) configure -state disabled
1996	Rappture::Tooltip::for $itk_component(zposition) \
1997	"@[itcl::code $this Slice tooltip z]"
1998
1999	blt::table $inner \
2000	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2001	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2002	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2003	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2004	4,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2005	4,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2006	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2007	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2008	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2009	6,1 $inner.xval -fill y -rspan 4 \
2010	6,2 $inner.yval -fill y -rspan 4 \
2011	6,3 $inner.zval -fill y -rspan 4 \
2012
2013
2014	blt::table configure $inner r* c* -resize none
2015	blt::table configure $inner r9 c4 -resize expand
2016	blt::table configure $inner r5 -height 0.12i
2017	}
2018
2019
2020
2021	#
2022	# camera --
2023	#
2024	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2025	switch -- $option {
2026	"show" {
2027	puts [array get _view]
2028	}
2029	"set" {
2030	set who [lindex $args 0]
2031	set x $_view($who)
2032	set code [catch { string is double $x } result]
2033	if { $code != 0 \|\| !$result } {
2034	return
2035	}
2036	switch -- $who {
2037	"ortho" {
2038	if {$_view(ortho)} {
2039	SendCmd "camera mode ortho"
2040	} else {
2041	SendCmd "camera mode persp"
2042	}
2043	}
2044	"xpan" - "ypan" {
2045	PanCamera
2046	}
2047	"qx" - "qy" - "qz" - "qw" {
2048	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2049	$_arcball quaternion $q
2050	EventuallyRotate $q
2051	}
2052	"zoom" {
2053	SendCmd "camera zoom $_view(zoom)"
2054	}
2055	}
2056	}
2057	}
2058	}
2059
2060	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2061	set bytes ""
2062	foreach dataobj [get] {
2063	foreach cname [$dataobj components] {
2064	set tag $dataobj-$cname
2065	set contents [$dataobj vtkdata $cname]
2066	append bytes "$contents\n\n"
2067	}
2068	}
2069	return [list .vtk $bytes]
2070	}
2071
2072	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2073	if { [image width $_image(download)] > 0 &&
2074	[image height $_image(download)] > 0 } {
2075	set bytes [$_image(download) data -format "jpeg -quality 100"]
2076	set bytes [Rappture::encoding::decode -as b64 $bytes]
2077	return [list .jpg $bytes]
2078	}
2079	return ""
2080	}
2081
2082	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2083	Rappture::Balloon $popup \
2084	-title "[Rappture::filexfer::label downloadWord] as..."
2085	set inner [$popup component inner]
2086	label $inner.summary -text "" -anchor w
2087	radiobutton $inner.vtk_button -text "VTK data file" \
2088	-variable [itcl::scope _downloadPopup(format)] \
2089	-font "Arial 9 " \
2090	-value vtk
2091	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2092	radiobutton $inner.image_button -text "Image File" \
2093	-variable [itcl::scope _downloadPopup(format)] \
2094	-font "Arial 9 " \
2095	-value image
2096	Rappture::Tooltip::for $inner.image_button \
2097	"Save as digital image."
2098
2099	button $inner.ok -text "Save" \
2100	-highlightthickness 0 -pady 2 -padx 3 \
2101	-command $command \
2102	-compound left \
2103	-image [Rappture::icon download]
2104
2105	button $inner.cancel -text "Cancel" \
2106	-highlightthickness 0 -pady 2 -padx 3 \
2107	-command [list $popup deactivate] \
2108	-compound left \
2109	-image [Rappture::icon cancel]
2110
2111	blt::table $inner \
2112	0,0 $inner.summary -cspan 2 \
2113	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2114	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2115	4,1 $inner.cancel -width .9i -fill y \
2116	4,0 $inner.ok -padx 2 -width .9i -fill y
2117	blt::table configure $inner r3 -height 4
2118	blt::table configure $inner r4 -pady 4
2119	raise $inner.image_button
2120	$inner.vtk_button invoke
2121	return $inner
2122	}
2123
2124	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2125	# Parse style string.
2126	set tag $dataobj-$comp
2127	array set style {
2128	-color BCGYR
2129	-edges 0
2130	-edgecolor black
2131	-linewidth 1.0
2132	-opacity 0.6
2133	-wireframe 0
2134	-lighting 1
2135	-outline 0
2136	-levels 10
2137	}
2138	array set style [$dataobj style $comp]
2139	if { $dataobj != $_first } {
2140	set style(-opacity) 1
2141	}
2142	if { $_currentColormap == "" } {
2143	set stylelist [$dataobj style $comp]
2144	if { $stylelist != "" } {
2145	array set style $stylelist
2146	set stylelist [array get style]
2147	SetCurrentColormap $stylelist
2148	}
2149	$itk_component(palette) value $style(-color)
2150	}
2151	SendCmd "cutplane add $tag"
2152	SendCmd "cutplane edges 0 $tag"
2153	SendCmd "cutplane wireframe 0 $tag"
2154	SendCmd "cutplane lighting 1 $tag"
2155	SendCmd "cutplane linewidth 1 $tag"
2156
2157	#SendCmd "cutplane linecolor 1 1 1 $tag"
2158	#SendCmd "cutplane visible $tag"
2159	foreach axis { x y z } {
2160	SendCmd "cutplane slice $axis 0.5 $tag"
2161	SendCmd "cutplane axis $axis 0 $tag"
2162	}
2163	set _numContours $style(-levels)
2164	SendCmd "contour3d add numcontours $_numContours $tag"
2165	SendCmd "contour3d edges $style(-edges) $tag"
2166	SendCmd "dataset outline $style(-outline) $tag"
2167	set _settings(isosurfaceOutline) $style(-outline)
2168	set _settings(isosurfaceEdges) $style(-edges)
2169	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2170	SendCmd "contour3d lighting $style(-lighting) $tag"
2171	set _settings(isosurfaceLighting) $style(-lighting)
2172	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2173	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2174	SendCmd "contour3d opacity $style(-opacity) $tag"
2175	set _settings(isosurfaceOpacity) $style(-opacity)
2176	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2177	set _settings(isosurfaceWireframe) $style(-wireframe)
2178	set _settings(isosurfaceOpacity) [expr $style(-opacity) * 100.0]
2179	}
2180
2181	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2182	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2183	return 0
2184	}
2185	return 1
2186	}
2187
2188	#
2189	# EnterLegend --
2190	#
2191	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2192	SetLegendTip $x $y
2193	}
2194
2195	#
2196	# MotionLegend --
2197	#
2198	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2199	Rappture::Tooltip::tooltip cancel
2200	set c $itk_component(view)
2201	SetLegendTip $x $y
2202	}
2203
2204	#
2205	# LeaveLegend --
2206	#
2207	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2208	Rappture::Tooltip::tooltip cancel
2209	.rappturetooltip configure -icon ""
2210	}
2211
2212	#
2213	# SetLegendTip --
2214	#
2215	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2216	set c $itk_component(view)
2217	set w [winfo width $c]
2218	set h [winfo height $c]
2219
2220	set font "Arial 8"
2221	set lineht [font metrics $font -linespace]
2222
2223	set ih [image height $_image(legend)]
2224	set iy [expr $y - ($lineht + 2)]
2225
2226	set title ""
2227	if { [info exists _fields($_title)] } {
2228	foreach { title units } $_fields($_title) break
2229	if { $title == "component" } {
2230	set title ""
2231	}
2232	if { $units != "" } {
2233	append title [format " (%s)" $units]
2234	}
2235	} else {
2236	set title $_title
2237	if { $title == "component" } {
2238	set title ""
2239	}
2240	}
2241	# If there's a legend title, increase the offset by the line height.
2242	if { $title != "" } {
2243	incr iy $lineht
2244	}
2245
2246	# Make a swatch of the selected color
2247	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2248	return
2249	}
2250	if { ![info exists _image(swatch)] } {
2251	set _image(swatch) [image create photo -width 24 -height 24]
2252	}
2253	set color [eval format "\#%02x%02x%02x" $pixel]
2254	$_image(swatch) put black -to 0 0 23 23
2255	$_image(swatch) put $color -to 1 1 22 22
2256	.rappturetooltip configure -icon $_image(swatch)
2257
2258	# Compute the value of the point
2259	if { [info exists _limits(vmax)] && [info exists _limits(vmin)] } {
2260	set t [expr 1.0 - (double($iy) / double($ih-1))]
2261	set value [expr $t * ($_limits(vmax) - $_limits(vmin)) + $_limits(vmin)]
2262	} else {
2263	set value 0.0
2264	}
2265	set tx [expr $x + 15]
2266	set ty [expr $y - 5]
2267	Rappture::Tooltip::text $c "$title $value"
2268	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2269	}
2270
2271
2272	# ----------------------------------------------------------------------
2273	# USAGE: Slice move x\|y\|z <newval>
2274	#
2275	# Called automatically when the user drags the slider to move the
2276	# cut plane that slices 3D data. Gets the current value from the
2277	# slider and moves the cut plane to the appropriate point in the
2278	# data set.
2279	# ----------------------------------------------------------------------
2280	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2281	switch -- $option {
2282	"move" {
2283	set axis [lindex $args 0]
2284	set a [string toupper $axis]
2285	set oldval $_settings(cutplane${a}Position)
2286	set newval [lindex $args 1]
2287	if {[llength $args] != 2} {
2288	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2289	}
2290	set newpos [expr {0.01*$newval}]
2291	SendCmd "cutplane slice $axis $newpos"
2292	}
2293	"tooltip" {
2294	set axis [lindex $args 0]
2295	set val [$itk_component(${axis}position) get]
2296	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2297	}
2298	default {
2299	error "bad option \"$option\": should be axis, move, or tooltip"
2300	}
2301	}
2302	}
2303
2304	#
2305	# ReceiveLegend --
2306	#
2307	# Invoked automatically whenever the "legend" command comes in from
2308	# the rendering server. Indicates that binary image data with the
2309	# specified <size> will follow.
2310	#
2311	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2312	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2313	set _title $title
2314	regsub {\(mag\)} $title "" _title
2315	if { [IsConnected] } {
2316	set bytes [ReceiveBytes $size]
2317	if { ![info exists _image(legend)] } {
2318	set _image(legend) [image create photo]
2319	}
2320	$_image(legend) configure -data $bytes
2321	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2322	if { [catch {DrawLegend $_title} errs] != 0 } {
2323	global errorInfo
2324	puts stderr "errs=$errs errorInfo=$errorInfo"
2325	}
2326	}
2327	}
2328
2329	#
2330	# DrawLegend --
2331	#
2332	# Draws the legend in the own canvas on the right side of the plot area.
2333	#
2334	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend { name } {
2335	set c $itk_component(view)
2336	set w [winfo width $c]
2337	set h [winfo height $c]
2338	set font "Arial 8"
2339	set lineht [font metrics $font -linespace]
2340
2341	if { $name == "component" } {
2342	set title ""
2343	} else {
2344	if { [info exists _fields($name)] } {
2345	foreach { title units } $_fields($name) break
2346	if { $units != "" } {
2347	set title [format "%s (%s)" $title $units]
2348	}
2349	} else {
2350	set title $name
2351	}
2352	}
2353	set x [expr $w - 2]
2354	if { !$_settings(legendVisible) } {
2355	$c delete legend
2356	return
2357	}
2358	if { [$c find withtag "legend"] == "" } {
2359	set y 2
2360	# If there's a legend title, create a text item for the title.
2361	if { $title != "" } {
2362	$c create text $x $y \
2363	-anchor ne \
2364	-fill $itk_option(-plotforeground) -tags "title legend" \
2365	-font $font
2366	incr y $lineht
2367	}
2368	$c create text $x $y \
2369	-anchor ne \
2370	-fill $itk_option(-plotforeground) -tags "zmax legend" \
2371	-font $font
2372	incr y $lineht
2373	$c create image $x $y \
2374	-anchor ne \
2375	-image $_image(legend) -tags "colormap legend"
2376	$c create text $x [expr {$h-2}] \
2377	-anchor se \
2378	-fill $itk_option(-plotforeground) -tags "zmin legend" \
2379	-font $font
2380	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2381	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2382	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2383	}
2384	$c delete isoline
2385	set x2 $x
2386	set iw [image width $_image(legend)]
2387	set ih [image height $_image(legend)]
2388	set x1 [expr $x2 - ($iw*12)/10]
2389	set color $_settings(isolineColor)
2390	# Draw the isolines on the legend.
2391	if { $color != "none" && $_numContours > 0 } {
2392	set pixels [blt::vector create \#auto]
2393	set values [blt::vector create \#auto]
2394	set range [image height $_image(legend)]
2395	# Order of pixels is max to min (max is at top of legend).
2396	$pixels seq $ih 0 $_numContours
2397	set offset [expr 2 + $lineht]
2398	# If there's a legend title, increase the offset by the line height.
2399	if { $title != "" } {
2400	incr offset $lineht
2401	}
2402	$pixels expr {round($pixels + $offset)}
2403	# Order of values is min to max.
2404	$values seq $_limits(zmin) $_limits(zmax) $_numContours
2405	set tags "isoline legend"
2406	foreach pos [$pixels range 0 end] value [$values range end 0] {
2407	set y1 [expr int($pos)]
2408	set id [$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags]
2409	$c bind $id <Enter> [itcl::code $this EnterIsoline %x %y $value]
2410	$c bind $id <Leave> [itcl::code $this LeaveIsoline]
2411	}
2412	blt::vector destroy $pixels $values
2413	}
2414
2415	$c bind title <ButtonPress> [itcl::code $this Combo post]
2416	$c bind title <Enter> [itcl::code $this Combo activate]
2417	$c bind title <Leave> [itcl::code $this Combo deactivate]
2418	# Reset the item coordinates according the current size of the plot.
2419	$c itemconfigure title -text $title
2420	if { [info exists _limits(zmin)] && $_limits(zmin) != "" } {
2421	$c itemconfigure zmin -text [format %g $_limits(zmin)]
2422	}
2423	if { [info exists _limits(zmax)] && $_limits(zmax) != "" } {
2424	$c itemconfigure zmax -text [format %g $_limits(zmax)]
2425	}
2426	set y 2
2427	# If there's a legend title, move the title to the correct position
2428	if { $title != "" } {
2429	$c coords title $x $y
2430	incr y $lineht
2431	}
2432	$c coords zmax $x $y
2433	incr y $lineht
2434	$c coords colormap $x $y
2435	$c coords zmin $x [expr {$h - 2}]
2436	}
2437
2438	#
2439	# EnterIsoline --
2440	#
2441	itcl::body Rappture::VtkIsosurfaceViewer::EnterIsoline { x y value } {
2442	SetIsolineTip $x $y $value
2443	}
2444
2445	#
2446	# LeaveIsoline --
2447	#
2448	itcl::body Rappture::VtkIsosurfaceViewer::LeaveIsoline { } {
2449	Rappture::Tooltip::tooltip cancel
2450	.rappturetooltip configure -icon ""
2451	}
2452
2453	#
2454	# SetIsolineTip --
2455	#
2456	itcl::body Rappture::VtkIsosurfaceViewer::SetIsolineTip { x y value } {
2457	set c $itk_component(view)
2458	.rappturetooltip configure -icon ""
2459
2460	# Compute the position of the tip
2461	set tx [expr $x + 15]
2462	set ty [expr $y - 5]
2463	Rappture::Tooltip::text $c "Isosurface $value"
2464	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2465	}
2466
2467	# ----------------------------------------------------------------------
2468	# USAGE: _dropdown post
2469	# USAGE: _dropdown unpost
2470	# USAGE: _dropdown select
2471	#
2472	# Used internally to handle the dropdown list for this combobox. The
2473	# post/unpost options are invoked when the list is posted or unposted
2474	# to manage the relief of the controlling button. The select option
2475	# is invoked whenever there is a selection from the list, to assign
2476	# the value back to the gauge.
2477	# ----------------------------------------------------------------------
2478	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2479	set c $itk_component(view)
2480	switch -- $option {
2481	post {
2482	foreach { x1 y1 x2 y2 } [$c bbox title] break
2483	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2484	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2485	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2486	tk_popup $itk_component(fieldmenu) $x $y
2487	}
2488	activate {
2489	$c itemconfigure title -fill red
2490	}
2491	deactivate {
2492	$c itemconfigure title -fill $itk_option(-plotforeground)
2493	}
2494	invoke {
2495	$itk_component(field) value $_curFldLabel
2496	AdjustSetting field
2497	}
2498	default {
2499	error "bad option \"$option\": should be post, unpost, select"
2500	}
2501	}
2502	}
2503
2504	#
2505	# SetCurrentColormap --
2506	#
2507	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { stylelist } {
2508	array set style {
2509	-color BCGYR
2510	-levels 10
2511	-opacity 1.0
2512	}
2513	array set style $stylelist
2514
2515	set name "$style(-color):$style(-levels):$style(-opacity)"
2516	if { ![info exists _colormaps($name)] } {
2517	set stylelist [array get style]
2518	BuildColormap $name $stylelist
2519	set _colormaps($name) $stylelist
2520	}
2521	set _currentColormap $name
2522	}
2523
2524	#
2525	# BuildColormap --
2526	#
2527	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name stylelist } {
2528	array set style $stylelist
2529	set cmap [ColorsToColormap $style(-color)]
2530	if { [llength $cmap] == 0 } {
2531	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2532	}
2533	if { ![info exists _settings(isosurfaceOpacity)] } {
2534	set _settings(isosurfaceOpacity) $style(-opacity)
2535	}
2536	set max $_settings(isosurfaceOpacity)
2537
2538	set wmap "0.0 1.0 1.0 1.0"
2539	SendCmd "colormap add $name { $cmap } { $wmap }"
2540	}
2541
2542	itcl::body Rappture::VtkIsosurfaceViewer::ResetColormap { color } {
2543	array set style {
2544	-color BCGYR
2545	-levels 10
2546	-opacity 1.0
2547	}
2548	if { [info exists _colormap($_currentColormap)] } {
2549	array set style $_colormap($_currentColormap)
2550	}
2551	set style(-color) $color
2552	SetCurrentColormap [array get style]
2553	}

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