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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 4766

Last change on this file since 4766 was 4766, checked in by ldelgass, 10 years ago
merge r4765 from trunk
File size: 90.3 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkisosurfaceviewer - Vtk 3D contour object viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2005 Purdue Research Foundation
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *VtkIsosurfaceViewer.width 4i widgetDefault
19	option add VtkIsosurfaceViewercursor crosshair widgetDefault
20	option add *VtkIsosurfaceViewer.height 4i widgetDefault
21	option add *VtkIsosurfaceViewer.foreground black widgetDefault
22	option add *VtkIsosurfaceViewer.controlBackground gray widgetDefault
23	option add *VtkIsosurfaceViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkIsosurfaceViewer.plotBackground black widgetDefault
25	option add *VtkIsosurfaceViewer.plotForeground white widgetDefault
26	option add *VtkIsosurfaceViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkIsosurfaceViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkIsosurfaceViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkIsosurfaceViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { hostlist args } {
42	Rappture::VisViewer::constructor $hostlist
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method parameters {title args} {
60	# do nothing
61	}
62	public method scale {args}
63
64	# The following methods are only used by this class.
65
66	private method AdjustSetting {what {value ""}}
67	private method BuildAxisTab {}
68	private method BuildCameraTab {}
69	private method BuildColormap { name }
70	private method BuildCutplaneTab {}
71	private method BuildDownloadPopup { widget command }
72	private method BuildIsosurfaceTab {}
73	private method Combo { option }
74	private method Connect {}
75	private method CurrentDatasets {args}
76	private method Disconnect {}
77	private method DoChangeContourLevels {}
78	private method DoResize {}
79	private method DoRotate {}
80	private method DrawLegend {}
81	private method EnterLegend { x y }
82	private method EventuallyChangeContourLevels {}
83	private method EventuallyRequestLegend {}
84	private method EventuallyResize { w h }
85	private method EventuallyRotate { q }
86	private method EventuallySetCutplane { axis args }
87	private method GenerateContourList {}
88	private method GetImage { args }
89	private method GetVtkData { args }
90	private method InitSettings { args }
91	private method IsValidObject { dataobj }
92	private method LeaveLegend {}
93	private method MotionLegend { x y }
94	private method Pan {option x y}
95	private method PanCamera {}
96	private method Pick {x y}
97	private method QuaternionToView { q } {
98	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
99	}
100	private method Rebuild {}
101	private method ReceiveDataset { args }
102	private method ReceiveImage { args }
103	private method ReceiveLegend { colormap title vmin vmax size }
104	private method RequestLegend {}
105	private method Rotate {option x y}
106	private method SetCurrentColormap { color }
107	private method SetCurrentFieldName { dataobj }
108	private method SetLegendTip { x y }
109	private method SetObjectStyle { dataobj comp }
110	private method SetOrientation { side }
111	private method Slice {option args}
112	private method ViewToQuaternion {} {
113	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
114	}
115	private method Zoom {option}
116
117	private variable _arcball ""
118
119	private variable _dlist "" ; # list of data objects
120	private variable _obj2datasets
121	private variable _obj2ovride ; # maps dataobj => style override
122	private variable _datasets ; # contains all the dataobj-component
123	; # datasets in the server
124	private variable _colormaps ; # contains all the colormaps
125	; # in the server.
126	# The name of the current colormap used. The colormap is global to all
127	# heightmaps displayed.
128	private variable _currentColormap ""
129	private variable _currentNumContours -1
130
131	private variable _dataset2style ;# maps dataobj-component to transfunc
132
133	private variable _click ; # info used for rotate operations
134	private variable _limits ; # autoscale min/max for all axes
135	private variable _view ; # view params for 3D view
136	private variable _settings
137	private variable _style; # Array of current component styles.
138	private variable _changed
139	private variable _initialStyle; # Array of initial component styles.
140	private variable _reset 1; # indicates if camera needs to be reset
141	# to starting position.
142
143	private variable _first "" ; # This is the topmost dataset.
144	private variable _start 0
145	private variable _title ""
146	private variable _isolines
147	private variable _contourList
148	private variable _currentLimits ""
149	private variable _widget
150
151	common _downloadPopup; # download options from popup
152	private common _hardcopy
153	private variable _width 0
154	private variable _height 0
155	private variable _resizePending 0
156	private variable _rotatePending 0
157	private variable _cutplanePending 0
158	private variable _legendPending 0
159	private variable _field ""
160	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
161	private variable _fieldNames {}
162	private variable _fields
163	private variable _curFldName ""
164	private variable _curFldLabel ""
165	}
166
167	itk::usual VtkIsosurfaceViewer {
168	keep -background -foreground -cursor -font
169	keep -plotbackground -plotforeground
170	}
171
172	# ----------------------------------------------------------------------
173	# CONSTRUCTOR
174	# ----------------------------------------------------------------------
175	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
176	package require vtk
177	set _serverType "vtkvis"
178
179	# Rebuild event
180	$_dispatcher register !rebuild
181	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
182
183	# Resize event
184	$_dispatcher register !resize
185	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
186
187	# Rotate event
188	$_dispatcher register !rotate
189	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
190
191	# Legend event
192	$_dispatcher register !legend
193	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
194
195	# Contour levels event
196	$_dispatcher register !contours
197	$_dispatcher dispatch $this !contours \
198	"[itcl::code $this DoChangeContourLevels]; list"
199
200	# X-Cutplane event
201	$_dispatcher register !xcutplane
202	$_dispatcher dispatch $this !xcutplane \
203	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
204
205	# Y-Cutplane event
206	$_dispatcher register !ycutplane
207	$_dispatcher dispatch $this !ycutplane \
208	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
209
210	# Z-Cutplane event
211	$_dispatcher register !zcutplane
212	$_dispatcher dispatch $this !zcutplane \
213	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
214
215	#
216	# Populate parser with commands handle incoming requests
217	#
218	$_parser alias image [itcl::code $this ReceiveImage]
219	$_parser alias dataset [itcl::code $this ReceiveDataset]
220	$_parser alias legend [itcl::code $this ReceiveLegend]
221
222	# Initialize the view to some default parameters.
223	array set _view {
224	-ortho 0
225	-qw 0.853553
226	-qx -0.353553
227	-qy 0.353553
228	-qz 0.146447
229	-xpan 0
230	-ypan 0
231	-zoom 1.0
232	}
233	set _arcball [blt::arcball create 100 100]
234	$_arcball quaternion [ViewToQuaternion]
235
236	array set _contourList {
237	numLevels 10
238	reqValues ""
239	updatePending 0
240	values ""
241	}
242	array set _settings {
243	-axesvisible 1
244	-axislabels 1
245	-axisminorticks 1
246	-axismode "static"
247	-background black
248	-colormap BCGYR
249	-colormapvisible 1
250	-cutplaneedges 0
251	-cutplanelighting 1
252	-cutplaneopacity 1.0
253	-cutplanepreinterp 1
254	-cutplanesvisible 0
255	-cutplanewireframe 0
256	-field "Default"
257	-isolinecolor white
258	-isosurfaceedges 0
259	-isosurfacelighting 1
260	-isosurfaceopacity 0.6
261	-isosurfacevisible 1
262	-isosurfacewireframe 0
263	-legendvisible 1
264	-numcontours 10
265	-outline 0
266	-xcutplaneposition 50
267	-xcutplanevisible 1
268	-xgrid 0
269	-ycutplaneposition 50
270	-ycutplanevisible 1
271	-ygrid 0
272	-zcutplaneposition 50
273	-zcutplanevisible 1
274	-zgrid 0
275	}
276	array set _changed {
277	-colormap 0
278	-isosurfaceopacity 0
279	-cutplaneopacity 0
280	-numcontours 0
281	}
282	array set _widget {
283	-isosurfaceopacity 60
284	-cutplaneopacity 100
285	}
286
287	itk_component add view {
288	canvas $itk_component(plotarea).view \
289	-highlightthickness 0 -borderwidth 0
290	} {
291	usual
292	ignore -highlightthickness -borderwidth -background
293	}
294
295	itk_component add fieldmenu {
296	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
297	-tearoff 0
298	} {
299	usual
300	ignore -background -foreground -relief -tearoff
301	}
302	set c $itk_component(view)
303	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
304	bind $c <4> [itcl::code $this Zoom in 0.25]
305	bind $c <5> [itcl::code $this Zoom out 0.25]
306	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
307	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
308	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
309	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
310	bind $c <Enter> "focus %W"
311	bind $c <Control-F1> [itcl::code $this ToggleConsole]
312
313	# Fix the scrollregion in case we go off screen
314	$c configure -scrollregion [$c bbox all]
315
316	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
317	set _map(cwidth) -1
318	set _map(cheight) -1
319	set _map(zoom) 1.0
320	set _map(original) ""
321
322	set f [$itk_component(main) component controls]
323	itk_component add reset {
324	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
325	-highlightthickness 0 \
326	-image [Rappture::icon reset-view] \
327	-command [itcl::code $this Zoom reset]
328	} {
329	usual
330	ignore -highlightthickness
331	}
332	pack $itk_component(reset) -side top -padx 2 -pady 2
333	Rappture::Tooltip::for $itk_component(reset) \
334	"Reset the view to the default zoom level"
335
336	itk_component add zoomin {
337	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
338	-highlightthickness 0 \
339	-image [Rappture::icon zoom-in] \
340	-command [itcl::code $this Zoom in]
341	} {
342	usual
343	ignore -highlightthickness
344	}
345	pack $itk_component(zoomin) -side top -padx 2 -pady 2
346	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
347
348	itk_component add zoomout {
349	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
350	-highlightthickness 0 \
351	-image [Rappture::icon zoom-out] \
352	-command [itcl::code $this Zoom out]
353	} {
354	usual
355	ignore -highlightthickness
356	}
357	pack $itk_component(zoomout) -side top -padx 2 -pady 2
358	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
359
360	itk_component add contour {
361	Rappture::PushButton $f.contour \
362	-onimage [Rappture::icon volume-on] \
363	-offimage [Rappture::icon volume-off] \
364	-variable [itcl::scope _settings(-isosurfacevisible)] \
365	-command [itcl::code $this AdjustSetting -isosurfacevisible]
366	}
367	$itk_component(contour) select
368	Rappture::Tooltip::for $itk_component(contour) \
369	"Hide the isosurface"
370	pack $itk_component(contour) -padx 2 -pady 2
371
372	itk_component add cutplane {
373	Rappture::PushButton $f.cutplane \
374	-onimage [Rappture::icon cutbutton] \
375	-offimage [Rappture::icon cutbutton] \
376	-variable [itcl::scope _settings(-cutplanesvisible)] \
377	-command [itcl::code $this AdjustSetting -cutplanesvisible]
378	}
379	Rappture::Tooltip::for $itk_component(cutplane) \
380	"Show the cutplanes"
381	pack $itk_component(cutplane) -padx 2 -pady 2
382
383
384	if { [catch {
385	BuildIsosurfaceTab
386	BuildCutplaneTab
387	BuildAxisTab
388	BuildCameraTab
389	} errs] != 0 } {
390	puts stderr errs=$errs
391	}
392	# Legend
393
394	set _image(legend) [image create photo]
395	itk_component add legend {
396	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
397	} {
398	usual
399	ignore -highlightthickness
400	rename -background -plotbackground plotBackground Background
401	}
402
403	# Hack around the Tk panewindow. The problem is that the requested
404	# size of the 3d view isn't set until an image is retrieved from
405	# the server. So the panewindow uses the tiny size.
406	set w 10000
407	pack forget $itk_component(view)
408	blt::table $itk_component(plotarea) \
409	0,0 $itk_component(view) -fill both -reqwidth $w
410	blt::table configure $itk_component(plotarea) c1 -resize none
411
412	# Bindings for rotation via mouse
413	bind $itk_component(view) <ButtonPress-1> \
414	[itcl::code $this Rotate click %x %y]
415	bind $itk_component(view) <B1-Motion> \
416	[itcl::code $this Rotate drag %x %y]
417	bind $itk_component(view) <ButtonRelease-1> \
418	[itcl::code $this Rotate release %x %y]
419
420	# Bindings for panning via mouse
421	bind $itk_component(view) <ButtonPress-2> \
422	[itcl::code $this Pan click %x %y]
423	bind $itk_component(view) <B2-Motion> \
424	[itcl::code $this Pan drag %x %y]
425	bind $itk_component(view) <ButtonRelease-2> \
426	[itcl::code $this Pan release %x %y]
427
428	#bind $itk_component(view) <ButtonRelease-3> \
429	# [itcl::code $this Pick %x %y]
430
431	# Bindings for panning via keyboard
432	bind $itk_component(view) <KeyPress-Left> \
433	[itcl::code $this Pan set -10 0]
434	bind $itk_component(view) <KeyPress-Right> \
435	[itcl::code $this Pan set 10 0]
436	bind $itk_component(view) <KeyPress-Up> \
437	[itcl::code $this Pan set 0 -10]
438	bind $itk_component(view) <KeyPress-Down> \
439	[itcl::code $this Pan set 0 10]
440	bind $itk_component(view) <Shift-KeyPress-Left> \
441	[itcl::code $this Pan set -2 0]
442	bind $itk_component(view) <Shift-KeyPress-Right> \
443	[itcl::code $this Pan set 2 0]
444	bind $itk_component(view) <Shift-KeyPress-Up> \
445	[itcl::code $this Pan set 0 -2]
446	bind $itk_component(view) <Shift-KeyPress-Down> \
447	[itcl::code $this Pan set 0 2]
448
449	# Bindings for zoom via keyboard
450	bind $itk_component(view) <KeyPress-Prior> \
451	[itcl::code $this Zoom out]
452	bind $itk_component(view) <KeyPress-Next> \
453	[itcl::code $this Zoom in]
454
455	bind $itk_component(view) <Enter> "focus $itk_component(view)"
456
457	if {[string equal "x11" [tk windowingsystem]]} {
458	# Bindings for zoom via mouse
459	bind $itk_component(view) <4> [itcl::code $this Zoom out]
460	bind $itk_component(view) <5> [itcl::code $this Zoom in]
461	}
462
463	set _image(download) [image create photo]
464
465	eval itk_initialize $args
466
467	EnableWaitDialog 500
468	Connect
469	# FIXME: Removing this update breaks wizard mode (see examples/3D)
470	# However, it also allows an error in the initialization order
471	# where FieldResult::add is called from ResultViewer before this
472	# constructor is completed.
473	#update
474	}
475
476	# ----------------------------------------------------------------------
477	# DESTRUCTOR
478	# ----------------------------------------------------------------------
479	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
480	Disconnect
481	image delete $_image(plot)
482	image delete $_image(download)
483	catch { blt::arcball destroy $_arcball }
484	}
485
486	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
487	if { $_width < 2 } {
488	set _width 500
489	}
490	if { $_height < 2 } {
491	set _height 500
492	}
493	set _start [clock clicks -milliseconds]
494	SendCmd "screen size $_width $_height"
495
496	EventuallyRequestLegend
497	set _resizePending 0
498	}
499
500	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
501	GenerateContourList
502	SendCmd [list contour3d contourlist $_contourList(values)]
503	SendCmd [list camera reset]
504	DrawLegend
505	set _contourList(updatePending) 0
506	}
507
508	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
509	SendCmd "camera orient [ViewToQuaternion]"
510	set _rotatePending 0
511	}
512
513	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
514	if { !$_legendPending } {
515	set _legendPending 1
516	$_dispatcher event -idle !legend
517	}
518	}
519
520	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
521	set _width $w
522	set _height $h
523	$_arcball resize $w $h
524	if { !$_resizePending } {
525	set _resizePending 1
526	$_dispatcher event -after 400 !resize
527	}
528	}
529
530	set rotate_delay 100
531
532	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
533	QuaternionToView $q
534	if { !$_rotatePending } {
535	set _rotatePending 1
536	global rotate_delay
537	$_dispatcher event -after $rotate_delay !rotate
538	}
539	}
540
541	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
542	if { !$_cutplanePending } {
543	set _cutplanePending 1
544	$_dispatcher event -after 100 !${axis}cutplane
545	}
546	}
547
548	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
549	set n $_contourList(numLevels)
550	set _contourList(values) ""
551	if { !$_contourList(updatePending) } {
552	set _contourList(updatePending) 1
553	global rotate_delay
554	$_dispatcher event -after $rotate_delay !contours
555	}
556	}
557
558	# ----------------------------------------------------------------------
559	# USAGE: add <dataobj> ?<settings>?
560	#
561	# Clients use this to add a data object to the plot. The optional
562	# <settings> are used to configure the plot. Allowed settings are
563	# -color, -brightness, -width, -linestyle, and -raise.
564	# ----------------------------------------------------------------------
565	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
566	if { ![$dataobj isvalid] } {
567	return; # Object doesn't contain valid data.
568	}
569	array set params {
570	-color auto
571	-width 1
572	-linestyle solid
573	-brightness 0
574	-raise 0
575	-description ""
576	-param ""
577	-type ""
578	}
579	array set params $settings
580	set params(-description) ""
581	set params(-param) ""
582	array set params $settings
583
584	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
585	# can't handle -autocolors yet
586	set params(-color) black
587	}
588	set pos [lsearch -exact $_dlist $dataobj]
589	if {$pos < 0} {
590	lappend _dlist $dataobj
591	}
592	set _obj2ovride($dataobj-color) $params(-color)
593	set _obj2ovride($dataobj-width) $params(-width)
594	set _obj2ovride($dataobj-raise) $params(-raise)
595	$_dispatcher event -idle !rebuild
596	}
597
598
599	# ----------------------------------------------------------------------
600	# USAGE: delete ?<dataobj1> <dataobj2> ...?
601	#
602	# Clients use this to delete a dataobj from the plot. If no dataobjs
603	# are specified, then all dataobjs are deleted. No data objects are
604	# deleted. They are only removed from the display list.
605	#
606	# ----------------------------------------------------------------------
607	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
608	if { [llength $args] == 0} {
609	set args $_dlist
610	}
611	# Delete all specified dataobjs
612	set changed 0
613	foreach dataobj $args {
614	set pos [lsearch -exact $_dlist $dataobj]
615	if { $pos < 0 } {
616	continue; # Don't know anything about it.
617	}
618	# Remove it from the dataobj list.
619	set _dlist [lreplace $_dlist $pos $pos]
620	array unset _obj2ovride $dataobj-*
621	array unset _settings $dataobj-*
622	set changed 1
623	}
624	# If anything changed, then rebuild the plot
625	if { $changed } {
626	$_dispatcher event -idle !rebuild
627	}
628	}
629
630	# ----------------------------------------------------------------------
631	# USAGE: get ?-objects?
632	# USAGE: get ?-visible?
633	# USAGE: get ?-image view?
634	#
635	# Clients use this to query the list of objects being plotted, in
636	# order from bottom to top of this result. The optional "-image"
637	# flag can also request the internal images being shown.
638	# ----------------------------------------------------------------------
639	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
640	if {[llength $args] == 0} {
641	set args "-objects"
642	}
643
644	set op [lindex $args 0]
645	switch -- $op {
646	"-objects" {
647	# put the dataobj list in order according to -raise options
648	set dlist {}
649	foreach dataobj $_dlist {
650	if { ![IsValidObject $dataobj] } {
651	continue
652	}
653	if {[info exists _obj2ovride($dataobj-raise)] &&
654	$_obj2ovride($dataobj-raise)} {
655	set dlist [linsert $dlist 0 $dataobj]
656	} else {
657	lappend dlist $dataobj
658	}
659	}
660	return $dlist
661	}
662	"-visible" {
663	set dlist {}
664	foreach dataobj $_dlist {
665	if { ![IsValidObject $dataobj] } {
666	continue
667	}
668	if { ![info exists _obj2ovride($dataobj-raise)] } {
669	# No setting indicates that the object isn't visible.
670	continue
671	}
672	# Otherwise use the -raise parameter to put the object to
673	# the front of the list.
674	if { $_obj2ovride($dataobj-raise) } {
675	set dlist [linsert $dlist 0 $dataobj]
676	} else {
677	lappend dlist $dataobj
678	}
679	}
680	return $dlist
681	}
682	-image {
683	if {[llength $args] != 2} {
684	error "wrong # args: should be \"get -image view\""
685	}
686	switch -- [lindex $args end] {
687	view {
688	return $_image(plot)
689	}
690	default {
691	error "bad image name \"[lindex $args end]\": should be view"
692	}
693	}
694	}
695	default {
696	error "bad option \"$op\": should be -objects or -image"
697	}
698	}
699	}
700
701	# ----------------------------------------------------------------------
702	# USAGE: scale ?<data1> <data2> ...?
703	#
704	# Sets the default limits for the overall plot according to the
705	# limits of the data for all of the given <data> objects. This
706	# accounts for all objects--even those not showing on the screen.
707	# Because of this, the limits are appropriate for all objects as
708	# the user scans through data in the ResultSet viewer.
709	# ----------------------------------------------------------------------
710	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
711	foreach dataobj $args {
712	if { ![$dataobj isvalid] } {
713	continue; # Object doesn't contain valid data.
714	}
715	foreach axis { x y z } {
716	set lim [$dataobj limits $axis]
717	if { ![info exists _limits($axis)] } {
718	set _limits($axis) $lim
719	continue
720	}
721	foreach {min max} $lim break
722	foreach {amin amax} $_limits($axis) break
723	if { $amin > $min } {
724	set amin $min
725	}
726	if { $amax < $max } {
727	set amax $max
728	}
729	set _limits($axis) [list $amin $amax]
730	}
731	foreach { fname lim } [$dataobj fieldlimits] {
732	if { ![info exists _limits($fname)] } {
733	set _limits($fname) $lim
734	continue
735	}
736	foreach {min max} $lim break
737	foreach {fmin fmax} $_limits($fname) break
738	if { $fmin > $min } {
739	set fmin $min
740	}
741	if { $fmax < $max } {
742	set fmax $max
743	}
744	set _limits($fname) [list $fmin $fmax]
745	}
746	}
747	}
748
749	# ----------------------------------------------------------------------
750	# USAGE: download coming
751	# USAGE: download controls <downloadCommand>
752	# USAGE: download now
753	#
754	# Clients use this method to create a downloadable representation
755	# of the plot. Returns a list of the form {ext string}, where
756	# "ext" is the file extension (indicating the type of data) and
757	# "string" is the data itself.
758	# ----------------------------------------------------------------------
759	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
760	switch $option {
761	coming {
762	if {[catch {
763	blt::winop snap $itk_component(plotarea) $_image(download)
764	}]} {
765	$_image(download) configure -width 1 -height 1
766	$_image(download) put #000000
767	}
768	}
769	controls {
770	set popup .vtkviewerdownload
771	if { ![winfo exists .vtkviewerdownload] } {
772	set inner [BuildDownloadPopup $popup [lindex $args 0]]
773	} else {
774	set inner [$popup component inner]
775	}
776	set _downloadPopup(image_controls) $inner.image_frame
777	set num [llength [get]]
778	set num [expr {($num == 1) ? "1 result" : "$num results"}]
779	set word [Rappture::filexfer::label downloadWord]
780	$inner.summary configure -text "$word $num in the following format:"
781	update idletasks ;# Fix initial sizes
782	return $popup
783	}
784	now {
785	set popup .vtkviewerdownload
786	if {[winfo exists .vtkviewerdownload]} {
787	$popup deactivate
788	}
789	switch -- $_downloadPopup(format) {
790	"image" {
791	return [$this GetImage [lindex $args 0]]
792	}
793	"vtk" {
794	return [$this GetVtkData [lindex $args 0]]
795	}
796	}
797	return ""
798	}
799	default {
800	error "bad option \"$option\": should be coming, controls, now"
801	}
802	}
803	}
804
805	# ----------------------------------------------------------------------
806	# USAGE: Connect ?<host:port>,<host:port>...?
807	#
808	# Clients use this method to establish a connection to a new
809	# server, or to reestablish a connection to the previous server.
810	# Any existing connection is automatically closed.
811	# ----------------------------------------------------------------------
812	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
813	set _hosts [GetServerList "vtkvis"]
814	if { "" == $_hosts } {
815	return 0
816	}
817	set result [VisViewer::Connect $_hosts]
818	if { $result } {
819	if { $_reportClientInfo } {
820	# Tell the server the viewer, hub, user and session.
821	# Do this immediately on connect before buffering any commands
822	global env
823
824	set info {}
825	set user "???"
826	if { [info exists env(USER)] } {
827	set user $env(USER)
828	}
829	set session "???"
830	if { [info exists env(SESSION)] } {
831	set session $env(SESSION)
832	}
833	lappend info "version" "$Rappture::version"
834	lappend info "build" "$Rappture::build"
835	lappend info "svnurl" "$Rappture::svnurl"
836	lappend info "installdir" "$Rappture::installdir"
837	lappend info "hub" [exec hostname]
838	lappend info "client" "vtkisosurfaceviewer"
839	lappend info "user" $user
840	lappend info "session" $session
841	SendCmd "clientinfo [list $info]"
842	}
843
844	set w [winfo width $itk_component(view)]
845	set h [winfo height $itk_component(view)]
846	EventuallyResize $w $h
847	}
848	return $result
849	}
850
851	#
852	# isconnected --
853	#
854	# Indicates if we are currently connected to the visualization server.
855	#
856	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
857	return [VisViewer::IsConnected]
858	}
859
860	#
861	# disconnect --
862	#
863	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
864	Disconnect
865	set _reset 1
866	}
867
868	#
869	# Disconnect --
870	#
871	# Clients use this method to disconnect from the current rendering
872	# server.
873	#
874	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
875	VisViewer::Disconnect
876
877	$_dispatcher cancel !rebuild
878	$_dispatcher cancel !resize
879	$_dispatcher cancel !rotate
880	$_dispatcher cancel !xcutplane
881	$_dispatcher cancel !ycutplane
882	$_dispatcher cancel !zcutplane
883	$_dispatcher cancel !legend
884	# disconnected -- no more data sitting on server
885	set _outbuf ""
886	array unset _datasets
887	array unset _data
888	array unset _colormaps
889	array unset _dataset2style
890	array unset _obj2datasets
891	}
892
893	# ----------------------------------------------------------------------
894	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
895	#
896	# Invoked automatically whenever the "image" command comes in from
897	# the rendering server. Indicates that binary image data with the
898	# specified <size> will follow.
899	# ----------------------------------------------------------------------
900	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
901	array set info {
902	-token "???"
903	-bytes 0
904	-type image
905	}
906	array set info $args
907	set bytes [ReceiveBytes $info(-bytes)]
908	if { $info(-type) == "image" } {
909	if 0 {
910	set f [open "last.ppm" "w"]
911	puts $f $bytes
912	close $f
913	}
914	$_image(plot) configure -data $bytes
915	#set time [clock seconds]
916	#set date [clock format $time]
917	#set w [image width $_image(plot)]
918	#set h [image height $_image(plot)]
919	#puts stderr "$date: received image ${w}x${h} image"
920	if { $_start > 0 } {
921	set finish [clock clicks -milliseconds]
922	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
923	set _start 0
924	}
925	} elseif { $info(type) == "print" } {
926	set tag $this-print-$info(-token)
927	set _hardcopy($tag) $bytes
928	}
929	}
930
931	#
932	# ReceiveDataset --
933	#
934	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
935	if { ![isconnected] } {
936	return
937	}
938	set option [lindex $args 0]
939	switch -- $option {
940	"scalar" {
941	set option [lindex $args 1]
942	switch -- $option {
943	"world" {
944	foreach { x y z value tag } [lrange $args 2 end] break
945	}
946	"pixel" {
947	foreach { x y value tag } [lrange $args 2 end] break
948	}
949	}
950	}
951	"vector" {
952	set option [lindex $args 1]
953	switch -- $option {
954	"world" {
955	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
956	}
957	"pixel" {
958	foreach { x y vx vy vz tag } [lrange $args 2 end] break
959	}
960	}
961	}
962	"names" {
963	foreach { name } [lindex $args 1] {
964	#puts stderr "Dataset: $name"
965	}
966	}
967	default {
968	error "unknown dataset option \"$option\" from server"
969	}
970	}
971	}
972
973	# ----------------------------------------------------------------------
974	# USAGE: Rebuild
975	#
976	# Called automatically whenever something changes that affects the
977	# data in the widget. Clears any existing data and rebuilds the
978	# widget to display new data.
979	# ----------------------------------------------------------------------
980	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
981	set w [winfo width $itk_component(view)]
982	set h [winfo height $itk_component(view)]
983	if { $w < 2 \|\| $h < 2 } {
984	$_dispatcher event -idle !rebuild
985	return
986	}
987
988	# Turn on buffering of commands to the server. We don't want to
989	# be preempted by a server disconnect/reconnect (which automatically
990	# generates a new call to Rebuild).
991	StartBufferingCommands
992	if { $_reset } {
993	set _width $w
994	set _height $h
995	$_arcball resize $w $h
996	DoResize
997
998	# Reset the camera and other view parameters
999	$_arcball quaternion [ViewToQuaternion]
1000	InitSettings -ortho
1001	DoRotate
1002	PanCamera
1003	set _first ""
1004	InitSettings -background \
1005	-xgrid -ygrid -zgrid -axismode \
1006	-axesvisible -axislabels -axisminorticks
1007	#SendCmd "axis lformat all %g"
1008	StopBufferingCommands
1009	SendCmd "imgflush"
1010	StartBufferingCommands
1011	}
1012	set _first ""
1013	SendCmd "dataset visible 0"
1014	eval scale $_dlist
1015	foreach dataobj [get -objects] {
1016	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1017	set _first $dataobj
1018	SetCurrentFieldName $dataobj
1019	}
1020	set _obj2datasets($dataobj) ""
1021	foreach comp [$dataobj components] {
1022	set tag $dataobj-$comp
1023	if { ![info exists _datasets($tag)] } {
1024	set bytes [$dataobj vtkdata $comp]
1025	if 0 {
1026	set f [open "/tmp/isosurface.vtk" "w"]
1027	puts $f $bytes
1028	close $f
1029	}
1030	set length [string length $bytes]
1031	if { $_reportClientInfo } {
1032	set info {}
1033	lappend info "tool_id" [$dataobj hints toolid]
1034	lappend info "tool_name" [$dataobj hints toolname]
1035	lappend info "tool_title" [$dataobj hints tooltitle]
1036	lappend info "tool_command" [$dataobj hints toolcommand]
1037	lappend info "tool_revision" [$dataobj hints toolrevision]
1038	lappend info "dataset_label" [$dataobj hints label]
1039	lappend info "dataset_size" $length
1040	lappend info "dataset_tag" $tag
1041	SendCmd "clientinfo [list $info]"
1042	}
1043	SendCmd "dataset add $tag data follows $length"
1044	append _outbuf $bytes
1045	set _datasets($tag) 1
1046	SetObjectStyle $dataobj $comp
1047	}
1048	lappend _obj2datasets($dataobj) $tag
1049	if { [info exists _obj2ovride($dataobj-raise)] } {
1050	SendCmd "contour3d visible 1 $tag"
1051	}
1052	}
1053	}
1054
1055	InitSettings -cutplanesvisible -isosurfacevisible -outline
1056	if { $_reset } {
1057	# These are settings that rely on a dataset being loaded.
1058	InitSettings \
1059	-isosurfacelighting \
1060	-field \
1061	-isosurfacevisible \
1062	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1063	-isosurfacewireframe \
1064	-cutplanesvisible \
1065	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1066	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1067	-cutplanepreinterp -numcontours
1068
1069	Zoom reset
1070	foreach axis { x y z } {
1071	# Another problem fixed by a <view>. We looking into a data
1072	# object for the name of the axes. This should be global to
1073	# the viewer itself.
1074	set label [$_first hints ${axis}label]
1075	if { $label == "" } {
1076	set label [string toupper $axis]
1077	}
1078	SendCmd [list axis name $axis $label]
1079	}
1080	if { [array size _fields] < 2 } {
1081	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1082	}
1083	set _reset 0
1084	}
1085	# Redraw the legend even if we're using the same colormap. The position
1086	# of the isolines may have changed because the range of data changed.
1087	DrawLegend
1088
1089	# Actually write the commands to the server socket. If it fails, we don't
1090	# care. We're finished here.
1091	blt::busy hold $itk_component(hull)
1092	StopBufferingCommands; # Turn off buffering and send commands.
1093	blt::busy release $itk_component(hull)
1094	}
1095
1096	# ----------------------------------------------------------------------
1097	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1098	#
1099	# Returns a list of server IDs for the current datasets being displayed. This
1100	# is normally a single ID, but it might be a list of IDs if the current data
1101	# object has multiple components.
1102	# ----------------------------------------------------------------------
1103	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1104	set flag [lindex $args 0]
1105	switch -- $flag {
1106	"-all" {
1107	if { [llength $args] > 1 } {
1108	error "CurrentDatasets: can't specify dataobj after \"-all\""
1109	}
1110	set dlist [get -objects]
1111	}
1112	"-visible" {
1113	if { [llength $args] > 1 } {
1114	set dlist {}
1115	set args [lrange $args 1 end]
1116	foreach dataobj $args {
1117	if { [info exists _obj2ovride($dataobj-raise)] } {
1118	lappend dlist $dataobj
1119	}
1120	}
1121	} else {
1122	set dlist [get -visible]
1123	}
1124	}
1125	default {
1126	set dlist $args
1127	}
1128	}
1129	set rlist ""
1130	foreach dataobj $dlist {
1131	foreach comp [$dataobj components] {
1132	set tag $dataobj-$comp
1133	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1134	lappend rlist $tag
1135	}
1136	}
1137	}
1138	return $rlist
1139	}
1140
1141	# ----------------------------------------------------------------------
1142	# USAGE: Zoom in
1143	# USAGE: Zoom out
1144	# USAGE: Zoom reset
1145	#
1146	# Called automatically when the user clicks on one of the zoom
1147	# controls for this widget. Changes the zoom for the current view.
1148	# ----------------------------------------------------------------------
1149	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1150	switch -- $option {
1151	"in" {
1152	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1153	SendCmd "camera zoom $_view(-zoom)"
1154	}
1155	"out" {
1156	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1157	SendCmd "camera zoom $_view(-zoom)"
1158	}
1159	"reset" {
1160	array set _view {
1161	-qw 0.853553
1162	-qx -0.353553
1163	-qy 0.353553
1164	-qz 0.146447
1165	-xpan 0
1166	-ypan 0
1167	-zoom 1.0
1168	}
1169	if { $_first != "" } {
1170	set location [$_first hints camera]
1171	if { $location != "" } {
1172	array set _view $location
1173	}
1174	}
1175	$_arcball quaternion [ViewToQuaternion]
1176	DoRotate
1177	SendCmd "camera reset"
1178	}
1179	}
1180	}
1181
1182	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1183	set x $_view(-xpan)
1184	set y $_view(-ypan)
1185	SendCmd "camera pan $x $y"
1186	}
1187
1188
1189	# ----------------------------------------------------------------------
1190	# USAGE: Rotate click <x> <y>
1191	# USAGE: Rotate drag <x> <y>
1192	# USAGE: Rotate release <x> <y>
1193	#
1194	# Called automatically when the user clicks/drags/releases in the
1195	# plot area. Moves the plot according to the user's actions.
1196	# ----------------------------------------------------------------------
1197	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1198	switch -- $option {
1199	"click" {
1200	$itk_component(view) configure -cursor fleur
1201	set _click(x) $x
1202	set _click(y) $y
1203	}
1204	"drag" {
1205	if {[array size _click] == 0} {
1206	Rotate click $x $y
1207	} else {
1208	set w [winfo width $itk_component(view)]
1209	set h [winfo height $itk_component(view)]
1210	if {$w <= 0 \|\| $h <= 0} {
1211	return
1212	}
1213
1214	if {[catch {
1215	# this fails sometimes for no apparent reason
1216	set dx [expr {double($x-$_click(x))/$w}]
1217	set dy [expr {double($y-$_click(y))/$h}]
1218	}]} {
1219	return
1220	}
1221	if { $dx == 0 && $dy == 0 } {
1222	return
1223	}
1224	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1225	EventuallyRotate $q
1226	set _click(x) $x
1227	set _click(y) $y
1228	}
1229	}
1230	"release" {
1231	Rotate drag $x $y
1232	$itk_component(view) configure -cursor ""
1233	catch {unset _click}
1234	}
1235	default {
1236	error "bad option \"$option\": should be click, drag, release"
1237	}
1238	}
1239	}
1240
1241	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1242	foreach tag [CurrentDatasets -visible] {
1243	SendCmd "dataset getscalar pixel $x $y $tag"
1244	}
1245	}
1246
1247	# ----------------------------------------------------------------------
1248	# USAGE: $this Pan click x y
1249	# $this Pan drag x y
1250	# $this Pan release x y
1251	#
1252	# Called automatically when the user clicks on one of the zoom
1253	# controls for this widget. Changes the zoom for the current view.
1254	# ----------------------------------------------------------------------
1255	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1256	switch -- $option {
1257	"set" {
1258	set w [winfo width $itk_component(view)]
1259	set h [winfo height $itk_component(view)]
1260	set x [expr $x / double($w)]
1261	set y [expr $y / double($h)]
1262	set _view(-xpan) [expr $_view(-xpan) + $x]
1263	set _view(-ypan) [expr $_view(-ypan) + $y]
1264	PanCamera
1265	return
1266	}
1267	"click" {
1268	set _click(x) $x
1269	set _click(y) $y
1270	$itk_component(view) configure -cursor hand1
1271	}
1272	"drag" {
1273	if { ![info exists _click(x)] } {
1274	set _click(x) $x
1275	}
1276	if { ![info exists _click(y)] } {
1277	set _click(y) $y
1278	}
1279	set w [winfo width $itk_component(view)]
1280	set h [winfo height $itk_component(view)]
1281	set dx [expr ($_click(x) - $x)/double($w)]
1282	set dy [expr ($_click(y) - $y)/double($h)]
1283	set _click(x) $x
1284	set _click(y) $y
1285	set _view(-xpan) [expr $_view(-xpan) - $dx]
1286	set _view(-ypan) [expr $_view(-ypan) - $dy]
1287	PanCamera
1288	}
1289	"release" {
1290	Pan drag $x $y
1291	$itk_component(view) configure -cursor ""
1292	}
1293	default {
1294	error "unknown option \"$option\": should set, click, drag, or release"
1295	}
1296	}
1297	}
1298
1299	# ----------------------------------------------------------------------
1300	# USAGE: InitSettings <what> ?<value>?
1301	#
1302	# Used internally to update rendering settings whenever parameters
1303	# change in the popup settings panel. Sends the new settings off
1304	# to the back end.
1305	# ----------------------------------------------------------------------
1306	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1307	foreach spec $args {
1308	if { [info exists _settings($_first-$spec)] } {
1309	# Reset global setting with dataobj specific setting
1310	set _settings($spec) $_settings($_first-$spec)
1311	}
1312	AdjustSetting $spec
1313	}
1314	}
1315
1316	#
1317	# AdjustSetting --
1318	#
1319	# Changes/updates a specific setting in the widget. There are
1320	# usually user-setable option. Commands are sent to the render
1321	# server.
1322	#
1323	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1324	if { ![isconnected] } {
1325	return
1326	}
1327	switch -- $what {
1328	"-axesvisible" {
1329	set bool $_settings($what)
1330	SendCmd "axis visible all $bool"
1331	}
1332	"-axislabels" {
1333	set bool $_settings($what)
1334	SendCmd "axis labels all $bool"
1335	}
1336	"-axisminorticks" {
1337	set bool $_settings($what)
1338	SendCmd "axis minticks all $bool"
1339	}
1340	"-axismode" {
1341	set mode [$itk_component(axisMode) value]
1342	set mode [$itk_component(axisMode) translate $mode]
1343	set _settings($what) $mode
1344	SendCmd "axis flymode $mode"
1345	}
1346	"-background" {
1347	set bgcolor [$itk_component(background) value]
1348	array set fgcolors {
1349	"black" "white"
1350	"white" "black"
1351	"grey" "black"
1352	}
1353	configure -plotbackground $bgcolor \
1354	-plotforeground $fgcolors($bgcolor)
1355	$itk_component(view) delete "legend"
1356	DrawLegend
1357	}
1358	"-cutplaneedges" {
1359	set bool $_settings($what)
1360	SendCmd "cutplane edges $bool"
1361	}
1362	"-cutplanelighting" {
1363	set bool $_settings($what)
1364	SendCmd "cutplane lighting $bool"
1365	}
1366	"-cutplaneopacity" {
1367	set _settings($what) [expr $_widget($what) * 0.01]
1368	SendCmd "cutplane opacity $_settings($what)"
1369	}
1370	"-cutplanepreinterp" {
1371	set bool $_settings($what)
1372	SendCmd "cutplane preinterp $bool"
1373	}
1374	"-cutplanesvisible" {
1375	set bool $_settings($what)
1376	SendCmd "cutplane visible 0"
1377	if { $bool } {
1378	foreach tag [CurrentDatasets -visible] {
1379	SendCmd "cutplane visible $bool $tag"
1380	}
1381	}
1382	if { $bool } {
1383	Rappture::Tooltip::for $itk_component(cutplane) \
1384	"Hide the cutplanes"
1385	} else {
1386	Rappture::Tooltip::for $itk_component(cutplane) \
1387	"Show the cutplanes"
1388	}
1389	}
1390	"-cutplanewireframe" {
1391	set bool $_settings($what)
1392	SendCmd "cutplane wireframe $bool"
1393	}
1394	"-colormap" {
1395	set _changed($what) 1
1396	StartBufferingCommands
1397	set color [$itk_component(colormap) value]
1398	set _settings($what) $color
1399	if { $color == "none" } {
1400	if { $_settings(-colormapvisible) } {
1401	SendCmd "contour3d colormode constant {}"
1402	set _settings(-colormapvisible) 0
1403	}
1404	} else {
1405	if { !$_settings(-colormapvisible) } {
1406	SendCmd "contour3d colormode $_colorMode $_curFldName"
1407	set _settings(-colormapvisible) 1
1408	}
1409	SetCurrentColormap $color
1410	}
1411	StopBufferingCommands
1412	EventuallyRequestLegend
1413	}
1414	"-field" {
1415	set label [$itk_component(field) value]
1416	set fname [$itk_component(field) translate $label]
1417	set _settings($what) $fname
1418	if { [info exists _fields($fname)] } {
1419	foreach { label units components } $_fields($fname) break
1420	if { $components > 1 } {
1421	set _colorMode vmag
1422	} else {
1423	set _colorMode scalar
1424	}
1425	set _curFldName $fname
1426	set _curFldLabel $label
1427	} else {
1428	puts stderr "unknown field \"$fname\""
1429	return
1430	}
1431	SendCmd "dataset scalar $_curFldName"
1432	if { ![info exists _limits($_curFldName)] } {
1433	SendCmd "dataset maprange all"
1434	} else {
1435	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1436	}
1437	SendCmd "cutplane colormode $_colorMode $_curFldName"
1438	SendCmd "contour3d colormode $_colorMode $_curFldName"
1439	SendCmd "camera reset"
1440	GenerateContourList
1441	DrawLegend
1442	}
1443	"-isolinecolor" {
1444	set color [$itk_component(isolineColor) value]
1445	set _settings($what) $color
1446	DrawLegend
1447	}
1448	"-isosurfaceedges" {
1449	set bool $_settings($what)
1450	SendCmd "contour3d edges $bool"
1451	}
1452	"-isosurfacelighting" {
1453	set bool $_settings($what)
1454	SendCmd "contour3d lighting $bool"
1455	}
1456	"-isosurfaceopacity" {
1457	set _settings($what) [expr $_widget($what) * 0.01]
1458	SendCmd "contour3d opacity $_settings($what)"
1459	}
1460	"-isosurfacevisible" {
1461	set bool $_settings($what)
1462	SendCmd "contour3d visible 0"
1463	if { $bool } {
1464	foreach tag [CurrentDatasets -visible] {
1465	SendCmd "contour3d visible $bool $tag"
1466	}
1467	}
1468	if { $bool } {
1469	Rappture::Tooltip::for $itk_component(contour) \
1470	"Hide the isosurface"
1471	} else {
1472	Rappture::Tooltip::for $itk_component(contour) \
1473	"Show the isosurface"
1474	}
1475	}
1476	"-isosurfacewireframe" {
1477	set bool $_settings($what)
1478	SendCmd "contour3d wireframe $bool"
1479	}
1480	"-legendvisible" {
1481	if { !$_settings($what) } {
1482	$itk_component(view) delete legend
1483	}
1484	DrawLegend
1485	}
1486	"-numcontours" {
1487	set _settings($what) [$itk_component(numcontours) value]
1488	if { $_contourList(numLevels) != $_settings($what) } {
1489	set _contourList(numLevels) $_settings($what)
1490	EventuallyChangeContourLevels
1491	}
1492	}
1493	"-ortho" {
1494	set bool $_view($what)
1495	if { $bool } {
1496	SendCmd "camera mode ortho"
1497	} else {
1498	SendCmd "camera mode persp"
1499	}
1500	}
1501	"-outline" {
1502	set bool $_settings($what)
1503	SendCmd "outline visible 0"
1504	if { $bool } {
1505	foreach tag [CurrentDatasets -visible] {
1506	SendCmd "outline visible $bool $tag"
1507	}
1508	}
1509	}
1510	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1511	set axis [string tolower [string range $what 1 1]]
1512	set bool $_settings($what)
1513	if { $bool } {
1514	$itk_component(${axis}position) configure -state normal \
1515	-troughcolor white
1516	} else {
1517	$itk_component(${axis}position) configure -state disabled \
1518	-troughcolor grey82
1519	}
1520	SendCmd "cutplane axis $axis $bool"
1521	}
1522	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1523	set axis [string tolower [string range $what 1 1]]
1524	set pos [expr $_settings($what) * 0.01]
1525	SendCmd "cutplane slice ${axis} ${pos}"
1526	set _cutplanePending 0
1527	}
1528	"-xgrid" - "-ygrid" - "-zgrid" {
1529	set axis [string tolower [string range $what 1 1]]
1530	set bool $_settings($what)
1531	SendCmd "axis grid $axis $bool"
1532	}
1533	default {
1534	error "don't know how to fix $what"
1535	}
1536	}
1537	}
1538
1539
1540	#
1541	# RequestLegend --
1542	#
1543	# Request a new legend from the server. The size of the legend
1544	# is determined from the height of the canvas.
1545	#
1546	# This should be called when
1547	# 1. A new current colormap is set.
1548	# 2. Window is resized.
1549	# 3. The limits of the data have changed. (Just need a redraw).
1550	# 4. Number of isolines have changed. (Just need a redraw).
1551	# 5. Legend becomes visible (Just need a redraw).
1552	#
1553	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1554	set _legendPending 0
1555	if { ![info exists _fields($_curFldName)] } {
1556	return
1557	}
1558	set fname $_curFldName
1559	set font "Arial 8"
1560	set lineht [font metrics $font -linespace]
1561	set w 12
1562	set h [expr {$_height - 2 * ($lineht + 2)}]
1563	if { $h < 1 } {
1564	return
1565	}
1566	if { [string match "component*" $fname] } {
1567	set title ""
1568	} else {
1569	if { [info exists _fields($fname)] } {
1570	foreach { title units } $_fields($fname) break
1571	if { $units != "" } {
1572	set title [format "%s (%s)" $title $units]
1573	}
1574	} else {
1575	set title $fname
1576	}
1577	}
1578	# If there's a title too, subtract one more line
1579	if { $title != "" } {
1580	incr h -$lineht
1581	}
1582	# Set the legend on the first heightmap dataset.
1583	if { $_currentColormap != "" } {
1584	set cmap $_currentColormap
1585	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1586	}
1587	}
1588
1589	# ----------------------------------------------------------------------
1590	# CONFIGURATION OPTION: -plotbackground
1591	# ----------------------------------------------------------------------
1592	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1593	if { [isconnected] } {
1594	set rgb [Color2RGB $itk_option(-plotbackground)]
1595	SendCmd "screen bgcolor $rgb"
1596	}
1597	}
1598
1599	# ----------------------------------------------------------------------
1600	# CONFIGURATION OPTION: -plotforeground
1601	# ----------------------------------------------------------------------
1602	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1603	if { [isconnected] } {
1604	set rgb [Color2RGB $itk_option(-plotforeground)]
1605	SendCmd "axis color all $rgb"
1606	SendCmd "outline color $rgb"
1607	SendCmd "cutplane color $rgb"
1608	}
1609	}
1610
1611	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1612
1613	set fg [option get $itk_component(hull) font Font]
1614	#set bfg [option get $itk_component(hull) boldFont Font]
1615
1616	set inner [$itk_component(main) insert end \
1617	-title "Isosurface Settings" \
1618	-icon [Rappture::icon volume-on]]
1619	$inner configure -borderwidth 4
1620
1621	checkbutton $inner.contour \
1622	-text "Isosurfaces" \
1623	-variable [itcl::scope _settings(-isosurfacevisible)] \
1624	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1625	-font "Arial 9"
1626
1627	checkbutton $inner.wireframe \
1628	-text "Wireframe" \
1629	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1630	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1631	-font "Arial 9"
1632
1633	checkbutton $inner.lighting \
1634	-text "Enable Lighting" \
1635	-variable [itcl::scope _settings(-isosurfacelighting)] \
1636	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1637	-font "Arial 9"
1638
1639	checkbutton $inner.edges \
1640	-text "Edges" \
1641	-variable [itcl::scope _settings(-isosurfaceedges)] \
1642	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1643	-font "Arial 9"
1644
1645	checkbutton $inner.outline \
1646	-text "Outline" \
1647	-variable [itcl::scope _settings(-outline)] \
1648	-command [itcl::code $this AdjustSetting -outline] \
1649	-font "Arial 9"
1650
1651	checkbutton $inner.legend \
1652	-text "Legend" \
1653	-variable [itcl::scope _settings(-legendvisible)] \
1654	-command [itcl::code $this AdjustSetting -legendvisible] \
1655	-font "Arial 9"
1656
1657	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1658	itk_component add isolineColor {
1659	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1660	}
1661	$inner.linecolor choices insert end \
1662	"black" "black" \
1663	"blue" "blue" \
1664	"cyan" "cyan" \
1665	"green" "green" \
1666	"grey" "grey" \
1667	"magenta" "magenta" \
1668	"orange" "orange" \
1669	"red" "red" \
1670	"white" "white" \
1671	"none" "none"
1672
1673	$itk_component(isolineColor) value "white"
1674	bind $inner.linecolor <<Value>> \
1675	[itcl::code $this AdjustSetting -isolinecolor]
1676
1677	label $inner.background_l -text "Background" -font "Arial 9"
1678	itk_component add background {
1679	Rappture::Combobox $inner.background -width 10 -editable 0
1680	}
1681	$inner.background choices insert end \
1682	"black" "black" \
1683	"white" "white" \
1684	"grey" "grey"
1685
1686	$itk_component(background) value $_settings(-background)
1687	bind $inner.background <<Value>> \
1688	[itcl::code $this AdjustSetting -background]
1689
1690	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1691	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1692	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1693	-width 10 \
1694	-showvalue off \
1695	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1696	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
1697
1698	itk_component add field_l {
1699	label $inner.field_l -text "Field" -font "Arial 9"
1700	} {
1701	ignore -font
1702	}
1703	itk_component add field {
1704	Rappture::Combobox $inner.field -width 10 -editable 0
1705	}
1706	bind $inner.field <<Value>> \
1707	[itcl::code $this AdjustSetting -field]
1708
1709	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1710	itk_component add colormap {
1711	Rappture::Combobox $inner.colormap -width 10 -editable 0
1712	}
1713	$inner.colormap choices insert end [GetColormapList]
1714
1715	$itk_component(colormap) value "BCGYR"
1716	bind $inner.colormap <<Value>> \
1717	[itcl::code $this AdjustSetting -colormap]
1718
1719	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1720	itk_component add numcontours {
1721	Rappture::Spinint $inner.numcontours \
1722	-min 0 -max 50 -font "arial 9"
1723	}
1724	$itk_component(numcontours) value $_settings(-numcontours)
1725	bind $itk_component(numcontours) <<Value>> \
1726	[itcl::code $this AdjustSetting -numcontours]
1727
1728	blt::table $inner \
1729	0,0 $inner.field_l -anchor w -pady 2 \
1730	0,1 $inner.field -anchor w -pady 2 -fill x \
1731	1,0 $inner.colormap_l -anchor w -pady 2 \
1732	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1733	2,0 $inner.linecolor_l -anchor w -pady 2 \
1734	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1735	3,0 $inner.background_l -anchor w -pady 2 \
1736	3,1 $inner.background -anchor w -pady 2 -fill x \
1737	4,0 $inner.numcontours_l -anchor w -pady 2 \
1738	4,1 $inner.numcontours -anchor w -pady 2 \
1739	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1740	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1741	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1742	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1743	9,0 $inner.legend -anchor w -pady 2 \
1744	10,0 $inner.opacity_l -anchor w -pady 2 \
1745	10,1 $inner.opacity -fill x -pady 2 -fill x \
1746
1747	blt::table configure $inner r* c* -resize none
1748	blt::table configure $inner r11 c1 -resize expand
1749	}
1750
1751	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1752
1753	set fg [option get $itk_component(hull) font Font]
1754	#set bfg [option get $itk_component(hull) boldFont Font]
1755
1756	set inner [$itk_component(main) insert end \
1757	-title "Axis Settings" \
1758	-icon [Rappture::icon axis2]]
1759	$inner configure -borderwidth 4
1760
1761	checkbutton $inner.visible \
1762	-text "Axes" \
1763	-variable [itcl::scope _settings(-axesvisible)] \
1764	-command [itcl::code $this AdjustSetting -axesvisible] \
1765	-font "Arial 9"
1766
1767	checkbutton $inner.labels \
1768	-text "Axis Labels" \
1769	-variable [itcl::scope _settings(-axislabels)] \
1770	-command [itcl::code $this AdjustSetting -axislabels] \
1771	-font "Arial 9"
1772	label $inner.grid_l -text "Grid" -font "Arial 9"
1773	checkbutton $inner.xgrid \
1774	-text "X" \
1775	-variable [itcl::scope _settings(-xgrid)] \
1776	-command [itcl::code $this AdjustSetting -xgrid] \
1777	-font "Arial 9"
1778	checkbutton $inner.ygrid \
1779	-text "Y" \
1780	-variable [itcl::scope _settings(-ygrid)] \
1781	-command [itcl::code $this AdjustSetting -ygrid] \
1782	-font "Arial 9"
1783	checkbutton $inner.zgrid \
1784	-text "Z" \
1785	-variable [itcl::scope _settings(-zgrid)] \
1786	-command [itcl::code $this AdjustSetting -zgrid] \
1787	-font "Arial 9"
1788	checkbutton $inner.minorticks \
1789	-text "Minor Ticks" \
1790	-variable [itcl::scope _settings(-axisminorticks)] \
1791	-command [itcl::code $this AdjustSetting -axisminorticks] \
1792	-font "Arial 9"
1793
1794	label $inner.mode_l -text "Mode" -font "Arial 9"
1795
1796	itk_component add axisMode {
1797	Rappture::Combobox $inner.mode -width 10 -editable 0
1798	}
1799	$inner.mode choices insert end \
1800	"static_triad" "static" \
1801	"closest_triad" "closest" \
1802	"furthest_triad" "farthest" \
1803	"outer_edges" "outer"
1804	$itk_component(axisMode) value $_settings(-axismode)
1805	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1806
1807	blt::table $inner \
1808	0,0 $inner.visible -anchor w -cspan 4 \
1809	1,0 $inner.labels -anchor w -cspan 4 \
1810	2,0 $inner.minorticks -anchor w -cspan 4 \
1811	4,0 $inner.grid_l -anchor w \
1812	4,1 $inner.xgrid -anchor w \
1813	4,2 $inner.ygrid -anchor w \
1814	4,3 $inner.zgrid -anchor w \
1815	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1816	5,1 $inner.mode -fill x -cspan 3
1817
1818	blt::table configure $inner r* c* -resize none
1819	blt::table configure $inner r7 c6 -resize expand
1820	blt::table configure $inner r3 -height 0.125i
1821	}
1822
1823
1824	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1825	set inner [$itk_component(main) insert end \
1826	-title "Camera Settings" \
1827	-icon [Rappture::icon camera]]
1828	$inner configure -borderwidth 4
1829
1830	label $inner.view_l -text "view" -font "Arial 9"
1831	set f [frame $inner.view]
1832	foreach side { front back left right top bottom } {
1833	button $f.$side -image [Rappture::icon view$side] \
1834	-command [itcl::code $this SetOrientation $side]
1835	Rappture::Tooltip::for $f.$side "Change the view to $side"
1836	pack $f.$side -side left
1837	}
1838
1839	blt::table $inner \
1840	0,0 $inner.view_l -anchor e -pady 2 \
1841	0,1 $inner.view -anchor w -pady 2
1842	blt::table configure $inner r0 -resize none
1843
1844	set labels { qx qy qz qw xpan ypan zoom }
1845	set row 1
1846	foreach tag $labels {
1847	label $inner.${tag}label -text $tag -font "Arial 9"
1848	entry $inner.${tag} -font "Arial 9" -bg white \
1849	-textvariable [itcl::scope _view(-$tag)]
1850	bind $inner.${tag} <Return> \
1851	[itcl::code $this camera set -${tag}]
1852	bind $inner.${tag} <KP_Enter> \
1853	[itcl::code $this camera set -${tag}]
1854	blt::table $inner \
1855	$row,0 $inner.${tag}label -anchor e -pady 2 \
1856	$row,1 $inner.${tag} -anchor w -pady 2
1857	blt::table configure $inner r$row -resize none
1858	incr row
1859	}
1860	checkbutton $inner.ortho \
1861	-text "Orthographic Projection" \
1862	-variable [itcl::scope _view(-ortho)] \
1863	-command [itcl::code $this AdjustSetting -ortho] \
1864	-font "Arial 9"
1865	blt::table $inner \
1866	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1867	blt::table configure $inner r$row -resize none
1868	incr row
1869
1870	blt::table configure $inner c* -resize none
1871	blt::table configure $inner c2 -resize expand
1872	blt::table configure $inner r$row -resize expand
1873	}
1874
1875	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1876
1877	set fg [option get $itk_component(hull) font Font]
1878
1879	set inner [$itk_component(main) insert end \
1880	-title "Cutplane Settings" \
1881	-icon [Rappture::icon cutbutton]]
1882
1883	$inner configure -borderwidth 4
1884
1885	checkbutton $inner.visible \
1886	-text "Cutplanes" \
1887	-variable [itcl::scope _settings(-cutplanesvisible)] \
1888	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
1889	-font "Arial 9"
1890
1891	checkbutton $inner.wireframe \
1892	-text "Wireframe" \
1893	-variable [itcl::scope _settings(-cutplanewireframe)] \
1894	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
1895	-font "Arial 9"
1896
1897	checkbutton $inner.lighting \
1898	-text "Enable Lighting" \
1899	-variable [itcl::scope _settings(-cutplanelighting)] \
1900	-command [itcl::code $this AdjustSetting -cutplanelighting] \
1901	-font "Arial 9"
1902
1903	checkbutton $inner.edges \
1904	-text "Edges" \
1905	-variable [itcl::scope _settings(-cutplaneedges)] \
1906	-command [itcl::code $this AdjustSetting -cutplaneedges] \
1907	-font "Arial 9"
1908
1909	checkbutton $inner.preinterp \
1910	-text "Interpolate Scalars" \
1911	-variable [itcl::scope _settings(-cutplanepreinterp)] \
1912	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
1913	-font "Arial 9"
1914
1915	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1916	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1917	-variable [itcl::scope _widget(-cutplaneopacity)] \
1918	-width 10 \
1919	-showvalue off \
1920	-command [itcl::code $this AdjustSetting -cutplaneopacity]
1921	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
1922
1923	# X-value slicer...
1924	itk_component add xbutton {
1925	Rappture::PushButton $inner.xbutton \
1926	-onimage [Rappture::icon x-cutplane-red] \
1927	-offimage [Rappture::icon x-cutplane-red] \
1928	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
1929	-variable [itcl::scope _settings(-xcutplanevisible)] \
1930	}
1931	Rappture::Tooltip::for $itk_component(xbutton) \
1932	"Toggle the X-axis cutplane on/off"
1933	$itk_component(xbutton) select
1934	itk_component add xposition {
1935	::scale $inner.xval -from 100 -to 0 \
1936	-width 10 -orient vertical -showvalue 1 \
1937	-borderwidth 1 -highlightthickness 0 \
1938	-command [itcl::code $this EventuallySetCutplane x] \
1939	-variable [itcl::scope _settings(-xcutplaneposition)] \
1940	-foreground red2 -font "Arial 9 bold"
1941	} {
1942	usual
1943	ignore -borderwidth -highlightthickness -foreground -font -background
1944	}
1945	# Set the default cutplane value before disabling the scale.
1946	$itk_component(xposition) set 50
1947	$itk_component(xposition) configure -state disabled
1948	Rappture::Tooltip::for $itk_component(xposition) \
1949	"@[itcl::code $this Slice tooltip x]"
1950
1951	# Y-value slicer...
1952	itk_component add ybutton {
1953	Rappture::PushButton $inner.ybutton \
1954	-onimage [Rappture::icon y-cutplane-green] \
1955	-offimage [Rappture::icon y-cutplane-green] \
1956	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
1957	-variable [itcl::scope _settings(-ycutplanevisible)] \
1958	}
1959	Rappture::Tooltip::for $itk_component(ybutton) \
1960	"Toggle the Y-axis cutplane on/off"
1961	$itk_component(ybutton) select
1962
1963	itk_component add yposition {
1964	::scale $inner.yval -from 100 -to 0 \
1965	-width 10 -orient vertical -showvalue 1 \
1966	-borderwidth 1 -highlightthickness 0 \
1967	-command [itcl::code $this EventuallySetCutplane y] \
1968	-variable [itcl::scope _settings(-ycutplaneposition)] \
1969	-foreground green3 -font "Arial 9 bold"
1970	} {
1971	usual
1972	ignore -borderwidth -highlightthickness -foreground -font
1973	}
1974	Rappture::Tooltip::for $itk_component(yposition) \
1975	"@[itcl::code $this Slice tooltip y]"
1976	# Set the default cutplane value before disabling the scale.
1977	$itk_component(yposition) set 50
1978	$itk_component(yposition) configure -state disabled
1979
1980	# Z-value slicer...
1981	itk_component add zbutton {
1982	Rappture::PushButton $inner.zbutton \
1983	-onimage [Rappture::icon z-cutplane-blue] \
1984	-offimage [Rappture::icon z-cutplane-blue] \
1985	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
1986	-variable [itcl::scope _settings(-zcutplanevisible)] \
1987	} {
1988	usual
1989	ignore -foreground
1990	}
1991	Rappture::Tooltip::for $itk_component(zbutton) \
1992	"Toggle the Z-axis cutplane on/off"
1993	$itk_component(zbutton) select
1994
1995	itk_component add zposition {
1996	::scale $inner.zval -from 100 -to 0 \
1997	-width 10 -orient vertical -showvalue 1 \
1998	-borderwidth 1 -highlightthickness 0 \
1999	-command [itcl::code $this EventuallySetCutplane z] \
2000	-variable [itcl::scope _settings(-zcutplaneposition)] \
2001	-foreground blue3 -font "Arial 9 bold"
2002	} {
2003	usual
2004	ignore -borderwidth -highlightthickness -foreground -font
2005	}
2006	$itk_component(zposition) set 50
2007	$itk_component(zposition) configure -state disabled
2008	Rappture::Tooltip::for $itk_component(zposition) \
2009	"@[itcl::code $this Slice tooltip z]"
2010
2011	blt::table $inner \
2012	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2013	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2014	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2015	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2016	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2017	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2018	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2019	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2020	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2021	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2022	6,1 $inner.xval -fill y -rspan 4 \
2023	6,2 $inner.yval -fill y -rspan 4 \
2024	6,3 $inner.zval -fill y -rspan 4 \
2025
2026
2027	blt::table configure $inner r* c* -resize none
2028	blt::table configure $inner r9 c4 -resize expand
2029	}
2030
2031	#
2032	# camera --
2033	#
2034	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2035	switch -- $option {
2036	"show" {
2037	puts [array get _view]
2038	}
2039	"set" {
2040	set what [lindex $args 0]
2041	set x $_view($what)
2042	set code [catch { string is double $x } result]
2043	if { $code != 0 \|\| !$result } {
2044	return
2045	}
2046	switch -- $what {
2047	"-ortho" {
2048	if {$_view($what)} {
2049	SendCmd "camera mode ortho"
2050	} else {
2051	SendCmd "camera mode persp"
2052	}
2053	}
2054	"-xpan" - "-ypan" {
2055	PanCamera
2056	}
2057	"-qx" - "-qy" - "-qz" - "-qw" {
2058	set q [ViewToQuaternion]
2059	$_arcball quaternion $q
2060	EventuallyRotate $q
2061	}
2062	"-zoom" {
2063	SendCmd "camera zoom $_view($what)"
2064	}
2065	}
2066	}
2067	}
2068	}
2069
2070	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2071	set bytes ""
2072	foreach dataobj [get] {
2073	foreach cname [$dataobj components] {
2074	set tag $dataobj-$cname
2075	set contents [$dataobj vtkdata $cname]
2076	append bytes "$contents\n"
2077	}
2078	}
2079	return [list .vtk $bytes]
2080	}
2081
2082	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2083	if { [image width $_image(download)] > 0 &&
2084	[image height $_image(download)] > 0 } {
2085	set bytes [$_image(download) data -format "jpeg -quality 100"]
2086	set bytes [Rappture::encoding::decode -as b64 $bytes]
2087	return [list .jpg $bytes]
2088	}
2089	return ""
2090	}
2091
2092	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2093	Rappture::Balloon $popup \
2094	-title "[Rappture::filexfer::label downloadWord] as..."
2095	set inner [$popup component inner]
2096	label $inner.summary -text "" -anchor w
2097	radiobutton $inner.vtk_button -text "VTK data file" \
2098	-variable [itcl::scope _downloadPopup(format)] \
2099	-font "Arial 9 " \
2100	-value vtk
2101	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2102	radiobutton $inner.image_button -text "Image File" \
2103	-variable [itcl::scope _downloadPopup(format)] \
2104	-font "Arial 9 " \
2105	-value image
2106	Rappture::Tooltip::for $inner.image_button \
2107	"Save as digital image."
2108
2109	button $inner.ok -text "Save" \
2110	-highlightthickness 0 -pady 2 -padx 3 \
2111	-command $command \
2112	-compound left \
2113	-image [Rappture::icon download]
2114
2115	button $inner.cancel -text "Cancel" \
2116	-highlightthickness 0 -pady 2 -padx 3 \
2117	-command [list $popup deactivate] \
2118	-compound left \
2119	-image [Rappture::icon cancel]
2120
2121	blt::table $inner \
2122	0,0 $inner.summary -cspan 2 \
2123	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2124	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2125	4,1 $inner.cancel -width .9i -fill y \
2126	4,0 $inner.ok -padx 2 -width .9i -fill y
2127	blt::table configure $inner r3 -height 4
2128	blt::table configure $inner r4 -pady 4
2129	raise $inner.image_button
2130	$inner.vtk_button invoke
2131	return $inner
2132	}
2133
2134	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2135	# Parse style string.
2136	set tag $dataobj-$comp
2137	array set style {
2138	-color BCGYR
2139	-cutplanesvisible 0
2140	-edgecolor black
2141	-edges 0
2142	-isosurfacevisible 1
2143	-levels 10
2144	-lighting 1
2145	-linewidth 1.0
2146	-opacity 0.6
2147	-outline 0
2148	-wireframe 0
2149	-xcutplaneposition 50
2150	-xcutplanevisible 1
2151	-ycutplaneposition 50
2152	-ycutplanevisible 1
2153	-zcutplaneposition 50
2154	-zcutplanevisible 1
2155	}
2156	array set style [$dataobj style $comp]
2157	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2158	set style(-opacity) 1.0
2159	}
2160
2161	# This is too complicated. We want to set the colormap, number of
2162	# isolines and opacity for the dataset. They can be the default values,
2163	# the style hints loaded with the dataset, or set by user controls. As
2164	# datasets get loaded, they first use the defaults that are overidden
2165	# by the style hints. If the user changes the global controls, then that
2166	# overrides everything else. I don't know what it means when global
2167	# controls are specified as style hints by each dataset. It complicates
2168	# the code to handle aberrant cases.
2169
2170	if { $_changed(-isosurfaceopacity) } {
2171	set style(-opacity) $_settings(-isosurfaceopacity)
2172	}
2173	if { $_changed(-numcontours) } {
2174	set style(-levels) $_settings(-numcontours)
2175	}
2176	if { $_changed(-colormap) } {
2177	set style(-color) $_settings(-colormap)
2178	}
2179	if { $_currentColormap == "" } {
2180	SetCurrentColormap $style(-color)
2181	$itk_component(colormap) value $style(-color)
2182	}
2183	if { $_contourList(numLevels) != $style(-levels) } {
2184	if { [llength $style(-levels)] > 1 } {
2185	set _contourList(reqValues) [lsort -real $style(-levels)]
2186	} else {
2187	set _settings(-numcontours) $style(-levels)
2188	$itk_component(numcontours) value $style(-levels)
2189	set _contourList(numLevels) $style(-levels)
2190	}
2191	EventuallyChangeContourLevels
2192	}
2193	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
2194	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
2195	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
2196	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
2197	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
2198	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
2199	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
2200	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
2201
2202	SendCmd "cutplane add $tag"
2203	SendCmd "cutplane color [Color2RGB $itk_option(-plotforeground)] $tag"
2204	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2205
2206	SendCmd "outline add $tag"
2207	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2208	SendCmd "outline visible $style(-outline) $tag"
2209	set _settings(-outline) $style(-outline)
2210
2211	GenerateContourList
2212	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2213	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2214	SendCmd "contour3d edges $style(-edges) $tag"
2215	set _settings(-isosurfaceedges) $style(-edges)
2216	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2217	SendCmd "contour3d lighting $style(-lighting) $tag"
2218	set _settings(-isosurfacelighting) $style(-lighting)
2219	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2220	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2221	SendCmd "contour3d opacity $style(-opacity) $tag"
2222	set _settings(-isosurfaceopacity) $style(-opacity)
2223	SetCurrentColormap $style(-color)
2224	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2225	set _settings(-isosurfacewireframe) $style(-wireframe)
2226	}
2227
2228	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2229	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2230	return 0
2231	}
2232	return 1
2233	}
2234
2235	#
2236	# EnterLegend --
2237	#
2238	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2239	SetLegendTip $x $y
2240	}
2241
2242	#
2243	# MotionLegend --
2244	#
2245	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2246	Rappture::Tooltip::tooltip cancel
2247	set c $itk_component(view)
2248	set cw [winfo width $c]
2249	set ch [winfo height $c]
2250	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2251	SetLegendTip $x $y
2252	}
2253	}
2254
2255	#
2256	# LeaveLegend --
2257	#
2258	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2259	Rappture::Tooltip::tooltip cancel
2260	.rappturetooltip configure -icon ""
2261	}
2262
2263	#
2264	# SetLegendTip --
2265	#
2266	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2267	set fname $_curFldName
2268	set c $itk_component(view)
2269	set w [winfo width $c]
2270	set h [winfo height $c]
2271
2272	set font "Arial 8"
2273	set lineht [font metrics $font -linespace]
2274
2275	set ih [image height $_image(legend)]
2276	set iy [expr $y - ($lineht + 2)]
2277
2278	if { [string match "component*" $fname] } {
2279	set title ""
2280	} else {
2281	if { [info exists _fields($fname)] } {
2282	foreach { title units } $_fields($fname) break
2283	if { $units != "" } {
2284	set title [format "%s (%s)" $title $units]
2285	}
2286	} else {
2287	set title $fname
2288	}
2289	}
2290	# If there's a legend title, increase the offset by the line height.
2291	if { $title != "" } {
2292	incr iy -$lineht
2293	}
2294	# Make a swatch of the selected color
2295	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2296	return
2297	}
2298	if { ![info exists _image(swatch)] } {
2299	set _image(swatch) [image create photo -width 24 -height 24]
2300	}
2301	set color [eval format "\#%02x%02x%02x" $pixel]
2302	$_image(swatch) put black -to 0 0 23 23
2303	$_image(swatch) put $color -to 1 1 22 22
2304	.rappturetooltip configure -icon $_image(swatch)
2305
2306	# Compute the value of the point
2307	if { [info exists _limits($_curFldName)] } {
2308	foreach { vmin vmax } $_limits($_curFldName) break
2309	set t [expr 1.0 - (double($iy) / double($ih-1))]
2310	set value [expr $t * ($vmax - $vmin) + $vmin]
2311	} else {
2312	set value 0.0
2313	}
2314	set tx [expr $x + 15]
2315	set ty [expr $y - 5]
2316	if { [info exists _isolines($y)] } {
2317	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2318	} else {
2319	Rappture::Tooltip::text $c [format "$title %g" $value]
2320	}
2321	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2322	}
2323
2324
2325	# ----------------------------------------------------------------------
2326	# USAGE: Slice move x\|y\|z <newval>
2327	#
2328	# Called automatically when the user drags the slider to move the
2329	# cut plane that slices 3D data. Gets the current value from the
2330	# slider and moves the cut plane to the appropriate point in the
2331	# data set.
2332	# ----------------------------------------------------------------------
2333	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2334	switch -- $option {
2335	"move" {
2336	set axis [lindex $args 0]
2337	set newval [lindex $args 1]
2338	if {[llength $args] != 2} {
2339	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2340	}
2341	set newpos [expr {0.01*$newval}]
2342	SendCmd "cutplane slice $axis $newpos"
2343	}
2344	"tooltip" {
2345	set axis [lindex $args 0]
2346	set val [$itk_component(${axis}position) get]
2347	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2348	}
2349	default {
2350	error "bad option \"$option\": should be axis, move, or tooltip"
2351	}
2352	}
2353	}
2354
2355	#
2356	# ReceiveLegend --
2357	#
2358	# Invoked automatically whenever the "legend" command comes in from
2359	# the rendering server. Indicates that binary image data with the
2360	# specified <size> will follow.
2361	#
2362	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2363	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2364	set _title $title
2365	regsub {\(mag\)} $title "" _title
2366	if { [IsConnected] } {
2367	set bytes [ReceiveBytes $size]
2368	if { ![info exists _image(legend)] } {
2369	set _image(legend) [image create photo]
2370	}
2371	$_image(legend) configure -data $bytes
2372	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2373	if { [catch {DrawLegend} errs] != 0 } {
2374	global errorInfo
2375	puts stderr "errs=$errs errorInfo=$errorInfo"
2376	}
2377	}
2378	}
2379
2380	#
2381	# DrawLegend --
2382	#
2383	# Draws the legend in the own canvas on the right side of the plot area.
2384	#
2385	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2386	set fname $_curFldName
2387	set c $itk_component(view)
2388	set w [winfo width $c]
2389	set h [winfo height $c]
2390	set font "Arial 8"
2391	set lineht [font metrics $font -linespace]
2392
2393	if { [string match "component*" $fname] } {
2394	set title ""
2395	} else {
2396	if { [info exists _fields($fname)] } {
2397	foreach { title units } $_fields($fname) break
2398	if { $units != "" } {
2399	set title [format "%s (%s)" $title $units]
2400	}
2401	} else {
2402	set title $fname
2403	}
2404	}
2405	set x [expr $w - 2]
2406	if { !$_settings(-legendvisible) } {
2407	$c delete legend
2408	return
2409	}
2410	if { [$c find withtag "legend"] == "" } {
2411	set y 2
2412	# If there's a legend title, create a text item for the title.
2413	$c create text $x $y \
2414	-anchor ne \
2415	-fill $itk_option(-plotforeground) -tags "title legend" \
2416	-font $font
2417	if { $title != "" } {
2418	incr y $lineht
2419	}
2420	$c create text $x $y \
2421	-anchor ne \
2422	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2423	-font $font
2424	incr y $lineht
2425	$c create image $x $y \
2426	-anchor ne \
2427	-image $_image(legend) -tags "colormap legend"
2428	$c create rectangle $x $y 1 1 \
2429	-fill "" -outline "" -tags "sensor legend"
2430	$c create text $x [expr {$h-2}] \
2431	-anchor se \
2432	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2433	-font $font
2434	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2435	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2436	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2437	}
2438	$c delete isoline
2439	set x2 $x
2440	set iw [image width $_image(legend)]
2441	set ih [image height $_image(legend)]
2442	set x1 [expr $x2 - ($iw*12)/10]
2443	set color $_settings(-isolinecolor)
2444	# Draw the isolines on the legend.
2445	array unset _isolines
2446	if { $color != "none" && [info exists _limits($_curFldName)] &&
2447	$_settings(-numcontours) > 0 } {
2448
2449	foreach { vmin vmax } $_limits($_curFldName) break
2450	set range [expr double($vmax - $vmin)]
2451	if { $range <= 0.0 } {
2452	set range 1.0; # Min is greater or equal to max.
2453	}
2454	set tags "isoline legend"
2455	set offset [expr 2 + $lineht]
2456	if { $title != "" } {
2457	incr offset $lineht
2458	}
2459	foreach value $_contourList(values) {
2460	set norm [expr 1.0 - (($value - $vmin) / $range)]
2461	set y1 [expr int(round(($norm * $ih) + $offset))]
2462	for { set off 0 } { $off < 3 } { incr off } {
2463	set _isolines([expr $y1 + $off]) $value
2464	set _isolines([expr $y1 - $off]) $value
2465	}
2466	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2467	}
2468	}
2469
2470	$c bind title <ButtonPress> [itcl::code $this Combo post]
2471	$c bind title <Enter> [itcl::code $this Combo activate]
2472	$c bind title <Leave> [itcl::code $this Combo deactivate]
2473	# Reset the item coordinates according the current size of the plot.
2474	$c itemconfigure title -text $title
2475	if { [info exists _limits($_curFldName)] } {
2476	foreach { vmin vmax } $_limits($_curFldName) break
2477	$c itemconfigure vmin -text [format %g $vmin]
2478	$c itemconfigure vmax -text [format %g $vmax]
2479	}
2480	set y 2
2481	# If there's a legend title, move the title to the correct position
2482	if { $title != "" } {
2483	$c itemconfigure title -text $title
2484	$c coords title $x $y
2485	incr y $lineht
2486	$c raise title
2487	}
2488	$c coords vmax $x $y
2489	incr y $lineht
2490	$c coords colormap $x $y
2491	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2492	$c raise sensor
2493	$c coords vmin $x [expr {$h - 2}]
2494	}
2495
2496	# ----------------------------------------------------------------------
2497	# USAGE: _dropdown post
2498	# USAGE: _dropdown unpost
2499	# USAGE: _dropdown select
2500	#
2501	# Used internally to handle the dropdown list for this combobox. The
2502	# post/unpost options are invoked when the list is posted or unposted
2503	# to manage the relief of the controlling button. The select option
2504	# is invoked whenever there is a selection from the list, to assign
2505	# the value back to the gauge.
2506	# ----------------------------------------------------------------------
2507	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2508	set c $itk_component(view)
2509	switch -- $option {
2510	post {
2511	foreach { x1 y1 x2 y2 } [$c bbox title] break
2512	set cw [winfo width $itk_component(view)]
2513	set mw [winfo reqwidth $itk_component(fieldmenu)]
2514	set x1 [expr $cw - $mw]
2515	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2516	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2517	tk_popup $itk_component(fieldmenu) $x $y
2518	}
2519	activate {
2520	$c itemconfigure title -fill red
2521	}
2522	deactivate {
2523	$c itemconfigure title -fill $itk_option(-plotforeground)
2524	}
2525	invoke {
2526	$itk_component(field) value $_curFldLabel
2527	AdjustSetting -field
2528	}
2529	default {
2530	error "bad option \"$option\": should be post, unpost, select"
2531	}
2532	}
2533	}
2534
2535	#
2536	# SetCurrentColormap --
2537	#
2538	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
2539	# Keep track of the colormaps that we build.
2540	if { ![info exists _colormaps($name)] } {
2541	BuildColormap $name
2542	set _colormaps($name) 1
2543	}
2544	set _currentColormap $name
2545	SendCmd "contour3d colormap $_currentColormap"
2546	SendCmd "cutplane colormap $_currentColormap"
2547	}
2548
2549	#
2550	# BuildColormap --
2551	#
2552	# Build the designated colormap on the server.
2553	#
2554	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
2555	set cmap [ColorsToColormap $name]
2556	if { [llength $cmap] == 0 } {
2557	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2558	}
2559	set wmap "0.0 1.0 1.0 1.0"
2560	SendCmd "colormap add $name { $cmap } { $wmap }"
2561	}
2562
2563	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
2564	array set positions {
2565	front "1 0 0 0"
2566	back "0 0 1 0"
2567	left "0.707107 0 -0.707107 0"
2568	right "0.707107 0 0.707107 0"
2569	top "0.707107 -0.707107 0 0"
2570	bottom "0.707107 0.707107 0 0"
2571	}
2572	foreach name { -qw -qx -qy -qz } value $positions($side) {
2573	set _view($name) $value
2574	}
2575	set q [ViewToQuaternion]
2576	$_arcball quaternion $q
2577	SendCmd "camera orient $q"
2578	SendCmd "camera reset"
2579	set _view(-xpan) 0
2580	set _view(-ypan) 0
2581	set _view(-zoom) 1.0
2582	}
2583
2584	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
2585	if { ![info exists _limits($_curFldName)] } {
2586	puts stderr "no _curFldName"
2587	return ""
2588	}
2589	if { $_contourList(numLevels) < 1 } {
2590	# There are tools that set 0 levels to get cutplanes only
2591	#puts stderr "numLevels < 1"
2592	return ""
2593	}
2594	if { [llength $_contourList(reqValues)] > 1 } {
2595	set values $_contourList(reqValues)
2596	} else {
2597	foreach { vmin vmax } $_limits($_curFldName) break
2598	set v [blt::vector create \#auto]
2599	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
2600	$v delete end 0
2601	set values [$v range 0 end]
2602	blt::vector destroy $v
2603	}
2604	set _contourList(values) $values
2605	}
2606
2607	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
2608	set _first $dataobj
2609	$itk_component(field) choices delete 0 end
2610	$itk_component(fieldmenu) delete 0 end
2611	array unset _fields
2612	set _curFldName ""
2613	foreach cname [$_first components] {
2614	foreach fname [$_first fieldnames $cname] {
2615	if { [info exists _fields($fname)] } {
2616	continue
2617	}
2618	foreach { label units components } \
2619	[$_first fieldinfo $fname] break
2620	$itk_component(field) choices insert end "$fname" "$label"
2621	$itk_component(fieldmenu) add radiobutton -label "$label" \
2622	-value $label -variable [itcl::scope _curFldLabel] \
2623	-selectcolor red \
2624	-activebackground $itk_option(-plotbackground) \
2625	-activeforeground $itk_option(-plotforeground) \
2626	-font "Arial 8" \
2627	-command [itcl::code $this Combo invoke]
2628	set _fields($fname) [list $label $units $components]
2629	if { $_curFldName == "" } {
2630	set _curFldName $fname
2631	set _curFldLabel $label
2632	}
2633	}
2634	}
2635	$itk_component(field) value $_curFldLabel
2636	if { ![info exists _limits($_curFldName)] } {
2637	SendCmd "dataset maprange all"
2638	} else {
2639	set limits $_limits($_curFldName)
2640	SendCmd "dataset maprange explicit $limits $_curFldName"
2641	if { $limits != $_currentLimits } {
2642	set _currentLimits $limits
2643	EventuallyChangeContourLevels
2644	}
2645	}
2646	}

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