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source: trunk/gui/scripts/vtkisosurfaceviewer.tcl @ 3486

Last change on this file since 3486 was 3486, checked in by ldelgass, 11 years ago
Set axis label format to %g in isosurface viewer
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 parameters {title args} {
62	# do nothing
63	}
64	public method scale {args}
65
66	protected method Connect {}
67	protected method CurrentDatasets {args}
68	protected method Disconnect {}
69	protected method DoResize {}
70	protected method DoRotate {}
71	protected method AdjustSetting {what {value ""}}
72	protected method InitSettings { args }
73	protected method Pan {option x y}
74	protected method Pick {x y}
75	protected method Rebuild {}
76	protected method ReceiveDataset { args }
77	protected method ReceiveImage { args }
78	protected method ReceiveLegend { colormap title vmin vmax size }
79	protected method Rotate {option x y}
80	protected method Zoom {option}
81
82	# The following methods are only used by this class.
83	private method BuildAxisTab {}
84	private method BuildCameraTab {}
85	private method BuildColormap { name colors }
86	private method BuildCutplaneTab {}
87	private method BuildDownloadPopup { widget command }
88	private method BuildIsosurfaceTab {}
89	private method DrawLegend {}
90	private method Combo { option }
91	private method EnterLegend { x y }
92	private method EventuallyResize { w h }
93	private method EventuallyRotate { q }
94	private method EventuallyRequestLegend {}
95	private method EventuallySetCutplane { axis args }
96	private method GetImage { args }
97	private method GetVtkData { args }
98	private method IsValidObject { dataobj }
99	private method LeaveLegend {}
100	private method MotionLegend { x y }
101	private method PanCamera {}
102	private method RequestLegend {}
103	private method SetLegendTip { x y }
104	private method SetObjectStyle { dataobj comp }
105	private method Slice {option args}
106	private method ResetColormap { color }
107	private method SetCurrentColormap { stylelist }
108
109	private variable _arcball ""
110
111	private variable _dlist "" ; # list of data objects
112	private variable _obj2datasets
113	private variable _obj2ovride ; # maps dataobj => style override
114	private variable _datasets ; # contains all the dataobj-component
115	; # datasets in the server
116	private variable _colormaps ; # contains all the colormaps
117	; # in the server.
118	# The name of the current colormap used. The colormap is global to all
119	# heightmaps displayed.
120	private variable _currentColormap "" ;
121
122
123	private variable _dataset2style ;# maps dataobj-component to transfunc
124
125	private variable _click ; # info used for rotate operations
126	private variable _limits ; # autoscale min/max for all axes
127	private variable _view ; # view params for 3D view
128	private variable _settings
129	private variable _style; # Array of current component styles.
130	private variable _initialStyle; # Array of initial component styles.
131	private variable _reset 1; # indicates if camera needs to be reset
132	# to starting position.
133
134	private variable _first "" ; # This is the topmost dataset.
135	private variable _start 0
136	private variable _title ""
137	private variable _isolines
138
139	common _downloadPopup; # download options from popup
140	private common _hardcopy
141	private variable _width 0
142	private variable _height 0
143	private variable _resizePending 0
144	private variable _rotatePending 0
145	private variable _cutplanePending 0
146	private variable _legendPending 0
147	private variable _field ""
148	private variable _colorMode "vmag"; # Mode of colormap (vmag or scalar)
149	private variable _fieldNames {}
150	private variable _fields
151	private variable _curFldName ""
152	private variable _curFldLabel ""
153	private variable _numContours 10
154	}
155
156	itk::usual VtkIsosurfaceViewer {
157	keep -background -foreground -cursor -font
158	keep -plotbackground -plotforeground
159	}
160
161	# ----------------------------------------------------------------------
162	# CONSTRUCTOR
163	# ----------------------------------------------------------------------
164	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
165	package require vtk
166	set _serverType "vtkvis"
167
168	# Rebuild event
169	$_dispatcher register !rebuild
170	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
171
172	# Resize event
173	$_dispatcher register !resize
174	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
175
176	# Rotate event
177	$_dispatcher register !rotate
178	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
179
180	# Legend event
181	$_dispatcher register !legend
182	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
183
184	# X-Cutplane event
185	$_dispatcher register !xcutplane
186	$_dispatcher dispatch $this !xcutplane \
187	"[itcl::code $this AdjustSetting cutplaneXPosition]; list"
188
189	# Y-Cutplane event
190	$_dispatcher register !ycutplane
191	$_dispatcher dispatch $this !ycutplane \
192	"[itcl::code $this AdjustSetting cutplaneYPosition]; list"
193
194	# Z-Cutplane event
195	$_dispatcher register !zcutplane
196	$_dispatcher dispatch $this !zcutplane \
197	"[itcl::code $this AdjustSetting cutplaneZPosition]; list"
198
199	#
200	# Populate parser with commands handle incoming requests
201	#
202	$_parser alias image [itcl::code $this ReceiveImage]
203	$_parser alias dataset [itcl::code $this ReceiveDataset]
204	$_parser alias legend [itcl::code $this ReceiveLegend]
205
206	# Initialize the view to some default parameters.
207	array set _view {
208	qw 0.853553
209	qx -0.353553
210	qy 0.353553
211	qz 0.146447
212	zoom 1.0
213	xpan 0
214	ypan 0
215	ortho 0
216	}
217	set _arcball [blt::arcball create 100 100]
218	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
219	$_arcball quaternion $q
220
221	array set _settings [subst {
222	background black
223	colormapPalette BCGYR
224	colormapVisible 1
225	field "Default"
226	isolineColor white
227	axesVisible 1
228	axisLabelsVisible 1
229	axisXGrid 0
230	axisYGrid 0
231	axisZGrid 0
232	cutplaneEdges 0
233	cutplaneLighting 1
234	cutplaneOpacity 100
235	cutplaneVisible 0
236	cutplaneWireframe 0
237	cutplaneXPosition 50
238	cutplaneXVisible 1
239	cutplaneYPosition 50
240	cutplaneYVisible 1
241	cutplaneZPosition 50
242	cutplaneZVisible 1
243	isosurfaceEdges 0
244	isosurfaceLighting 1
245	isosurfaceOpacity 60
246	isosurfaceOutline 0
247	isosurfaceVisible 1
248	isosurfaceWireframe 0
249	legendVisible 1
250	}]
251
252	itk_component add view {
253	canvas $itk_component(plotarea).view \
254	-highlightthickness 0 -borderwidth 0
255	} {
256	usual
257	ignore -highlightthickness -borderwidth -background
258	}
259
260	itk_component add fieldmenu {
261	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
262	-tearoff no
263	} {
264	usual
265	ignore -background -foreground -relief -tearoff
266	}
267	set c $itk_component(view)
268	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
269	bind $c <4> [itcl::code $this Zoom in 0.25]
270	bind $c <5> [itcl::code $this Zoom out 0.25]
271	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
272	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
273	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
274	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
275	bind $c <Enter> "focus %W"
276	bind $c <Control-F1> [itcl::code $this ToggleConsole]
277
278	# Fix the scrollregion in case we go off screen
279	$c configure -scrollregion [$c bbox all]
280
281	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
282	set _map(cwidth) -1
283	set _map(cheight) -1
284	set _map(zoom) 1.0
285	set _map(original) ""
286
287	set f [$itk_component(main) component controls]
288	itk_component add reset {
289	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
290	-highlightthickness 0 \
291	-image [Rappture::icon reset-view] \
292	-command [itcl::code $this Zoom reset]
293	} {
294	usual
295	ignore -highlightthickness
296	}
297	pack $itk_component(reset) -side top -padx 2 -pady 2
298	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
299
300	itk_component add zoomin {
301	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
302	-highlightthickness 0 \
303	-image [Rappture::icon zoom-in] \
304	-command [itcl::code $this Zoom in]
305	} {
306	usual
307	ignore -highlightthickness
308	}
309	pack $itk_component(zoomin) -side top -padx 2 -pady 2
310	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
311
312	itk_component add zoomout {
313	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
314	-highlightthickness 0 \
315	-image [Rappture::icon zoom-out] \
316	-command [itcl::code $this Zoom out]
317	} {
318	usual
319	ignore -highlightthickness
320	}
321	pack $itk_component(zoomout) -side top -padx 2 -pady 2
322	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
323
324	itk_component add contour {
325	Rappture::PushButton $f.contour \
326	-onimage [Rappture::icon volume-on] \
327	-offimage [Rappture::icon volume-off] \
328	-variable [itcl::scope _settings(isosurfaceVisible)] \
329	-command [itcl::code $this AdjustSetting isosurfaceVisible]
330	}
331	$itk_component(contour) select
332	Rappture::Tooltip::for $itk_component(contour) \
333	"Don't display the isosurface"
334	pack $itk_component(contour) -padx 2 -pady 2
335
336	itk_component add cutplane {
337	Rappture::PushButton $f.cutplane \
338	-onimage [Rappture::icon cutbutton] \
339	-offimage [Rappture::icon cutbutton] \
340	-variable [itcl::scope _settings(cutplaneVisible)] \
341	-command [itcl::code $this AdjustSetting cutplaneVisible]
342	}
343	Rappture::Tooltip::for $itk_component(cutplane) \
344	"Show/Hide cutplanes"
345	pack $itk_component(cutplane) -padx 2 -pady 2
346
347
348	if { [catch {
349	BuildIsosurfaceTab
350	BuildCutplaneTab
351	BuildAxisTab
352	BuildCameraTab
353	} errs] != 0 } {
354	puts stderr errs=$errs
355	}
356	# Legend
357
358	set _image(legend) [image create photo]
359	itk_component add legend {
360	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
361	} {
362	usual
363	ignore -highlightthickness
364	rename -background -plotbackground plotBackground Background
365	}
366
367	# Hack around the Tk panewindow. The problem is that the requested
368	# size of the 3d view isn't set until an image is retrieved from
369	# the server. So the panewindow uses the tiny size.
370	set w 10000
371	pack forget $itk_component(view)
372	blt::table $itk_component(plotarea) \
373	0,0 $itk_component(view) -fill both -reqwidth $w
374	blt::table configure $itk_component(plotarea) c1 -resize none
375
376	# Bindings for rotation via mouse
377	bind $itk_component(view) <ButtonPress-1> \
378	[itcl::code $this Rotate click %x %y]
379	bind $itk_component(view) <B1-Motion> \
380	[itcl::code $this Rotate drag %x %y]
381	bind $itk_component(view) <ButtonRelease-1> \
382	[itcl::code $this Rotate release %x %y]
383	bind $itk_component(view) <Configure> \
384	[itcl::code $this EventuallyResize %w %h]
385
386	if 0 {
387	bind $itk_component(view) <Configure> \
388	[itcl::code $this EventuallyResize %w %h]
389	}
390	# Bindings for panning via mouse
391	bind $itk_component(view) <ButtonPress-2> \
392	[itcl::code $this Pan click %x %y]
393	bind $itk_component(view) <B2-Motion> \
394	[itcl::code $this Pan drag %x %y]
395	bind $itk_component(view) <ButtonRelease-2> \
396	[itcl::code $this Pan release %x %y]
397
398	#bind $itk_component(view) <ButtonRelease-3> \
399	# [itcl::code $this Pick %x %y]
400
401	# Bindings for panning via keyboard
402	bind $itk_component(view) <KeyPress-Left> \
403	[itcl::code $this Pan set -10 0]
404	bind $itk_component(view) <KeyPress-Right> \
405	[itcl::code $this Pan set 10 0]
406	bind $itk_component(view) <KeyPress-Up> \
407	[itcl::code $this Pan set 0 -10]
408	bind $itk_component(view) <KeyPress-Down> \
409	[itcl::code $this Pan set 0 10]
410	bind $itk_component(view) <Shift-KeyPress-Left> \
411	[itcl::code $this Pan set -2 0]
412	bind $itk_component(view) <Shift-KeyPress-Right> \
413	[itcl::code $this Pan set 2 0]
414	bind $itk_component(view) <Shift-KeyPress-Up> \
415	[itcl::code $this Pan set 0 -2]
416	bind $itk_component(view) <Shift-KeyPress-Down> \
417	[itcl::code $this Pan set 0 2]
418
419	# Bindings for zoom via keyboard
420	bind $itk_component(view) <KeyPress-Prior> \
421	[itcl::code $this Zoom out]
422	bind $itk_component(view) <KeyPress-Next> \
423	[itcl::code $this Zoom in]
424
425	bind $itk_component(view) <Enter> "focus $itk_component(view)"
426
427	if {[string equal "x11" [tk windowingsystem]]} {
428	# Bindings for zoom via mouse
429	bind $itk_component(view) <4> [itcl::code $this Zoom out]
430	bind $itk_component(view) <5> [itcl::code $this Zoom in]
431	}
432
433	set _image(download) [image create photo]
434
435	eval itk_initialize $args
436	Connect
437	update
438	}
439
440	# ----------------------------------------------------------------------
441	# DESTRUCTOR
442	# ----------------------------------------------------------------------
443	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
444	Disconnect
445	image delete $_image(plot)
446	image delete $_image(download)
447	catch { blt::arcball destroy $_arcball }
448	}
449
450	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
451	if { $_width < 2 } {
452	set _width 500
453	}
454	if { $_height < 2 } {
455	set _height 500
456	}
457	set _start [clock clicks -milliseconds]
458	SendCmd "screen size $_width $_height"
459
460	EventuallyRequestLegend
461	set _resizePending 0
462	}
463
464	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
465	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
466	SendCmd "camera orient $q"
467	set _rotatePending 0
468	}
469
470	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
471	if { !$_legendPending } {
472	set _legendPending 1
473	$_dispatcher event -idle !legend
474	}
475	}
476
477	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
478	set _width $w
479	set _height $h
480	$_arcball resize $w $h
481	if { !$_resizePending } {
482	set _resizePending 1
483	$_dispatcher event -after 400 !resize
484	}
485	}
486
487	set rotate_delay 100
488
489	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
490	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
491	if { !$_rotatePending } {
492	set _rotatePending 1
493	global rotate_delay
494	$_dispatcher event -after $rotate_delay !rotate
495	}
496	}
497
498	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
499	if { !$_cutplanePending } {
500	set _cutplanePending 1
501	$_dispatcher event -after 100 !${axis}cutplane
502	}
503	}
504
505	# ----------------------------------------------------------------------
506	# USAGE: add <dataobj> ?<settings>?
507	#
508	# Clients use this to add a data object to the plot. The optional
509	# <settings> are used to configure the plot. Allowed settings are
510	# -color, -brightness, -width, -linestyle, and -raise.
511	# ----------------------------------------------------------------------
512	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
513	array set params {
514	-color auto
515	-width 1
516	-linestyle solid
517	-brightness 0
518	-raise 0
519	-description ""
520	-param ""
521	-type ""
522	}
523	array set params $settings
524	set params(-description) ""
525	set params(-param) ""
526	foreach {opt val} $settings {
527	if {![info exists params($opt)]} {
528	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
529	}
530	set params($opt) $val
531	}
532	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
533	# can't handle -autocolors yet
534	set params(-color) black
535	}
536	set pos [lsearch -exact $dataobj $_dlist]
537	if {$pos < 0} {
538	lappend _dlist $dataobj
539	}
540	set _obj2ovride($dataobj-color) $params(-color)
541	set _obj2ovride($dataobj-width) $params(-width)
542	set _obj2ovride($dataobj-raise) $params(-raise)
543	$_dispatcher event -idle !rebuild
544	}
545
546
547	# ----------------------------------------------------------------------
548	# USAGE: delete ?<dataobj1> <dataobj2> ...?
549	#
550	# Clients use this to delete a dataobj from the plot. If no dataobjs
551	# are specified, then all dataobjs are deleted. No data objects are
552	# deleted. They are only removed from the display list.
553	#
554	# ----------------------------------------------------------------------
555	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
556	if { [llength $args] == 0} {
557	set args $_dlist
558	}
559	# Delete all specified dataobjs
560	set changed 0
561	foreach dataobj $args {
562	set pos [lsearch -exact $_dlist $dataobj]
563	if { $pos < 0 } {
564	continue; # Don't know anything about it.
565	}
566	# Remove it from the dataobj list.
567	set _dlist [lreplace $_dlist $pos $pos]
568	SendCmd "contour3d visible 0"
569	array unset _obj2ovride $dataobj-*
570	array unset _settings $dataobj-*
571	# Append to the end of the dataobj list.
572	lappend _dlist $dataobj
573	set changed 1
574	}
575	# If anything changed, then rebuild the plot
576	if { $changed } {
577	$_dispatcher event -idle !rebuild
578	}
579	}
580
581	# ----------------------------------------------------------------------
582	# USAGE: get ?-objects?
583	# USAGE: get ?-visible?
584	# USAGE: get ?-image view?
585	#
586	# Clients use this to query the list of objects being plotted, in
587	# order from bottom to top of this result. The optional "-image"
588	# flag can also request the internal images being shown.
589	# ----------------------------------------------------------------------
590	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
591	if {[llength $args] == 0} {
592	set args "-objects"
593	}
594
595	set op [lindex $args 0]
596	switch -- $op {
597	"-objects" {
598	# put the dataobj list in order according to -raise options
599	set dlist {}
600	foreach dataobj $_dlist {
601	if { ![IsValidObject $dataobj] } {
602	continue
603	}
604	if {[info exists _obj2ovride($dataobj-raise)] &&
605	$_obj2ovride($dataobj-raise)} {
606	set dlist [linsert $dlist 0 $dataobj]
607	} else {
608	lappend dlist $dataobj
609	}
610	}
611	return $dlist
612	}
613	"-visible" {
614	set dlist {}
615	foreach dataobj $_dlist {
616	if { ![IsValidObject $dataobj] } {
617	continue
618	}
619	if { ![info exists _obj2ovride($dataobj-raise)] } {
620	# No setting indicates that the object isn't visible.
621	continue
622	}
623	# Otherwise use the -raise parameter to put the object to
624	# the front of the list.
625	if { $_obj2ovride($dataobj-raise) } {
626	set dlist [linsert $dlist 0 $dataobj]
627	} else {
628	lappend dlist $dataobj
629	}
630	}
631	return $dlist
632	}
633	-image {
634	if {[llength $args] != 2} {
635	error "wrong # args: should be \"get -image view\""
636	}
637	switch -- [lindex $args end] {
638	view {
639	return $_image(plot)
640	}
641	default {
642	error "bad image name \"[lindex $args end]\": should be view"
643	}
644	}
645	}
646	default {
647	error "bad option \"$op\": should be -objects or -image"
648	}
649	}
650	}
651
652	# ----------------------------------------------------------------------
653	# USAGE: scale ?<data1> <data2> ...?
654	#
655	# Sets the default limits for the overall plot according to the
656	# limits of the data for all of the given <data> objects. This
657	# accounts for all objects--even those not showing on the screen.
658	# Because of this, the limits are appropriate for all objects as
659	# the user scans through data in the ResultSet viewer.
660	# ----------------------------------------------------------------------
661	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
662	foreach dataobj $args {
663	foreach axis { x y z } {
664	set lim [$dataobj limits $axis]
665	if { ![info exists _limits($axis)] } {
666	set _limits($axis) $lim
667	continue
668	}
669	foreach {min max} $lim break
670	foreach {amin amax} $_limits($axis) break
671	if { $amin > $min } {
672	set amin $min
673	}
674	if { $amax < $max } {
675	set amax $max
676	}
677	set _limits($axis) [list $amin $amax]
678	}
679	foreach { fname lim } [$dataobj fieldlimits] {
680	if { ![info exists _limits($fname)] } {
681	set _limits($fname) $lim
682	continue
683	}
684	foreach {min max} $lim break
685	foreach {fmin fmax} $_limits($fname) break
686	if { $fmin > $min } {
687	set fmin $min
688	}
689	if { $fmax < $max } {
690	set fmax $max
691	}
692	set _limits($fname) [list $fmin $fmax]
693	}
694	}
695	}
696
697	# ----------------------------------------------------------------------
698	# USAGE: download coming
699	# USAGE: download controls <downloadCommand>
700	# USAGE: download now
701	#
702	# Clients use this method to create a downloadable representation
703	# of the plot. Returns a list of the form {ext string}, where
704	# "ext" is the file extension (indicating the type of data) and
705	# "string" is the data itself.
706	# ----------------------------------------------------------------------
707	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
708	switch $option {
709	coming {
710	if {[catch {
711	blt::winop snap $itk_component(plotarea) $_image(download)
712	}]} {
713	$_image(download) configure -width 1 -height 1
714	$_image(download) put #000000
715	}
716	}
717	controls {
718	set popup .vtkviewerdownload
719	if { ![winfo exists .vtkviewerdownload] } {
720	set inner [BuildDownloadPopup $popup [lindex $args 0]]
721	} else {
722	set inner [$popup component inner]
723	}
724	set _downloadPopup(image_controls) $inner.image_frame
725	set num [llength [get]]
726	set num [expr {($num == 1) ? "1 result" : "$num results"}]
727	set word [Rappture::filexfer::label downloadWord]
728	$inner.summary configure -text "$word $num in the following format:"
729	update idletasks ;# Fix initial sizes
730	return $popup
731	}
732	now {
733	set popup .vtkviewerdownload
734	if {[winfo exists .vtkviewerdownload]} {
735	$popup deactivate
736	}
737	switch -- $_downloadPopup(format) {
738	"image" {
739	return [$this GetImage [lindex $args 0]]
740	}
741	"vtk" {
742	return [$this GetVtkData [lindex $args 0]]
743	}
744	}
745	return ""
746	}
747	default {
748	error "bad option \"$option\": should be coming, controls, now"
749	}
750	}
751	}
752
753	# ----------------------------------------------------------------------
754	# USAGE: Connect ?<host:port>,<host:port>...?
755	#
756	# Clients use this method to establish a connection to a new
757	# server, or to reestablish a connection to the previous server.
758	# Any existing connection is automatically closed.
759	# ----------------------------------------------------------------------
760	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
761	set _hosts [GetServerList "vtkvis"]
762	if { "" == $_hosts } {
763	return 0
764	}
765	set result [VisViewer::Connect $_hosts]
766	if { $result } {
767	set w [winfo width $itk_component(view)]
768	set h [winfo height $itk_component(view)]
769	EventuallyResize $w $h
770	}
771	return $result
772	}
773
774	#
775	# isconnected --
776	#
777	# Indicates if we are currently connected to the visualization server.
778	#
779	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
780	return [VisViewer::IsConnected]
781	}
782
783	#
784	# disconnect --
785	#
786	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
787	Disconnect
788	set _reset 1
789	}
790
791	#
792	# Disconnect --
793	#
794	# Clients use this method to disconnect from the current rendering
795	# server.
796	#
797	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
798	VisViewer::Disconnect
799
800	$_dispatcher cancel !rebuild
801	$_dispatcher cancel !resize
802	$_dispatcher cancel !rotate
803	$_dispatcher cancel !xcutplane
804	$_dispatcher cancel !ycutplane
805	$_dispatcher cancel !zcutplane
806	$_dispatcher cancel !legend
807	# disconnected -- no more data sitting on server
808	set _outbuf ""
809	array unset _datasets
810	array unset _data
811	array unset _colormaps
812	array unset _seeds
813	array unset _dataset2style
814	array unset _obj2datasets
815	}
816
817	# ----------------------------------------------------------------------
818	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
819	#
820	# Invoked automatically whenever the "image" command comes in from
821	# the rendering server. Indicates that binary image data with the
822	# specified <size> will follow.
823	# ----------------------------------------------------------------------
824	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
825	array set info {
826	-token "???"
827	-bytes 0
828	-type image
829	}
830	array set info $args
831	set bytes [ReceiveBytes $info(-bytes)]
832	if { $info(-type) == "image" } {
833	if 0 {
834	set f [open "last.ppm" "w"]
835	puts $f $bytes
836	close $f
837	}
838	$_image(plot) configure -data $bytes
839	set time [clock seconds]
840	set date [clock format $time]
841	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
842	if { $_start > 0 } {
843	set finish [clock clicks -milliseconds]
844	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
845	set _start 0
846	}
847	} elseif { $info(type) == "print" } {
848	set tag $this-print-$info(-token)
849	set _hardcopy($tag) $bytes
850	}
851	EventuallyRequestLegend
852	}
853
854	#
855	# ReceiveDataset --
856	#
857	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
858	if { ![isconnected] } {
859	return
860	}
861	set option [lindex $args 0]
862	switch -- $option {
863	"scalar" {
864	set option [lindex $args 1]
865	switch -- $option {
866	"world" {
867	foreach { x y z value tag } [lrange $args 2 end] break
868	}
869	"pixel" {
870	foreach { x y value tag } [lrange $args 2 end] break
871	}
872	}
873	}
874	"vector" {
875	set option [lindex $args 1]
876	switch -- $option {
877	"world" {
878	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
879	}
880	"pixel" {
881	foreach { x y vx vy vz tag } [lrange $args 2 end] break
882	}
883	}
884	}
885	"names" {
886	foreach { name } [lindex $args 1] {
887	#puts stderr "Dataset: $name"
888	}
889	}
890	default {
891	error "unknown dataset option \"$option\" from server"
892	}
893	}
894	}
895
896	# ----------------------------------------------------------------------
897	# USAGE: Rebuild
898	#
899	# Called automatically whenever something changes that affects the
900	# data in the widget. Clears any existing data and rebuilds the
901	# widget to display new data.
902	# ----------------------------------------------------------------------
903	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
904	update
905	set w [winfo width $itk_component(view)]
906	set h [winfo height $itk_component(view)]
907	if { $w < 2 \|\| $h < 2 } {
908	$_dispatcher event -idle !rebuild
909	return
910	}
911
912	# Turn on buffering of commands to the server. We don't want to
913	# be preempted by a server disconnect/reconnect (which automatically
914	# generates a new call to Rebuild).
915	StartBufferingCommands
916
917	if { $_reset } {
918	if { $_reportClientInfo } {
919	# Tell the server the name of the tool, the version, and dataset
920	# that we are rendering. Have to do it here because we don't know
921	# what data objects are using the renderer until be get here.
922	global env
923
924	set info {}
925	set user "???"
926	if { [info exists env(USER)] } {
927	set user $env(USER)
928	}
929	set session "???"
930	if { [info exists env(SESSION)] } {
931	set session $env(SESSION)
932	}
933	lappend info "hub" [exec hostname]
934	lappend info "client" "vtkisosurfaceviewer"
935	lappend info "user" $user
936	lappend info "session" $session
937	SendCmd "clientinfo [list $info]"
938	}
939	set _width $w
940	set _height $h
941	$_arcball resize $w $h
942	DoResize
943	#
944	# Reset the camera and other view parameters
945	#
946	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
947	$_arcball quaternion $q
948	if {$_view(ortho)} {
949	SendCmd "camera mode ortho"
950	} else {
951	SendCmd "camera mode persp"
952	}
953	DoRotate
954	PanCamera
955	set _first ""
956	InitSettings axisXGrid axisYGrid axisZGrid axisMode \
957	axesVisible axisLabelsVisible
958	foreach axis { x y z } {
959	SendCmd "axis lformat $axis %g"
960	}
961	SendCmd "imgflush"
962	}
963	set _first ""
964	SendCmd "dataset visible 0"
965	foreach dataobj [get -objects] {
966	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
967	set _first $dataobj
968	}
969	set _obj2datasets($dataobj) ""
970	foreach comp [$dataobj components] {
971	set tag $dataobj-$comp
972	if { ![info exists _datasets($tag)] } {
973	set bytes [$dataobj vtkdata $comp]
974	if 0 {
975	set f [open "/tmp/isosurface.vtk" "w"]
976	puts $f $bytes
977	close $f
978	}
979	set length [string length $bytes]
980	if { $_reportClientInfo } {
981	set info {}
982	lappend info "tool_id" [$dataobj hints toolId]
983	lappend info "tool_name" [$dataobj hints toolName]
984	lappend info "tool_version" [$dataobj hints toolRevision]
985	lappend info "tool_title" [$dataobj hints toolTitle]
986	lappend info "dataset_label" [$dataobj hints label]
987	lappend info "dataset_size" $length
988	lappend info "dataset_tag" $tag
989	SendCmd "clientinfo [list $info]"
990	}
991	append _outbuf "dataset add $tag data follows $length\n"
992	append _outbuf $bytes
993	set _datasets($tag) 1
994	SetObjectStyle $dataobj $comp
995	}
996	lappend _obj2datasets($dataobj) $tag
997	if { [info exists _obj2ovride($dataobj-raise)] } {
998	# Setting dataset visible enables outline (if enabled)
999	# and contour3d
1000	SendCmd "dataset visible 1 $tag"
1001	}
1002	}
1003	}
1004	if { $_first != "" } {
1005	$itk_component(field) choices delete 0 end
1006	$itk_component(fieldmenu) delete 0 end
1007	array unset _fields
1008	set _curFldName ""
1009	foreach cname [$_first components] {
1010	foreach fname [$_first fieldnames $cname] {
1011	if { [info exists _fields($fname)] } {
1012	continue
1013	}
1014	foreach { label units components } \
1015	[$_first fieldinfo $fname] break
1016	$itk_component(field) choices insert end "$fname" "$label"
1017	$itk_component(fieldmenu) add radiobutton -label "$label" \
1018	-value $label -variable [itcl::scope _curFldLabel] \
1019	-selectcolor red \
1020	-activebackground $itk_option(-plotbackground) \
1021	-activeforeground $itk_option(-plotforeground) \
1022	-font "Arial 8" \
1023	-command [itcl::code $this Combo invoke]
1024	set _fields($fname) [list $label $units $components]
1025	if { $_curFldName == "" } {
1026	set _curFldName $fname
1027	set _curFldLabel $label
1028	}
1029	}
1030	}
1031	$itk_component(field) value $_curFldLabel
1032	}
1033	InitSettings isosurfaceVisible colormapPalette isosurfaceVisible
1034
1035	if { $_reset } {
1036	# These are settings that rely on a dataset being loaded.
1037	InitSettings \
1038	isosurfaceLighting \
1039	field \
1040	isosurfaceEdges isosurfaceLighting isosurfaceOpacity \
1041	isosurfaceWireframe isosurfaceOutline \
1042	cutplaneXPosition cutplaneYPosition cutplaneZPosition \
1043	cutplaneXVisible cutplaneYVisible cutplaneZVisible \
1044	cutplaneVisible
1045	Zoom reset
1046	foreach axis { x y z } {
1047	# Another problem fixed by a <view>. We looking into a data
1048	# object for the name of the axes. This should be global to
1049	# the viewer itself.
1050	set label [$_first hints ${axis}label]
1051	if { $label == "" } {
1052	if {$axis == "z"} {
1053	if { [string match "component*" $_curFldName] } {
1054	set label [string toupper $axis]
1055	} else {
1056	set label $_curFldLabel
1057	}
1058	} else {
1059	set label [string toupper $axis]
1060	}
1061	}
1062	# May be a space in the axis label.
1063	SendCmd [list axis name $axis $label]
1064	}
1065	set _reset 0
1066	}
1067
1068	# Actually write the commands to the server socket. If it fails, we don't
1069	# care. We're finished here.
1070	blt::busy hold $itk_component(hull)
1071	StopBufferingCommands; # Turn off buffering and send commands.
1072	blt::busy release $itk_component(hull)
1073	}
1074
1075	# ----------------------------------------------------------------------
1076	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1077	#
1078	# Returns a list of server IDs for the current datasets being displayed. This
1079	# is normally a single ID, but it might be a list of IDs if the current data
1080	# object has multiple components.
1081	# ----------------------------------------------------------------------
1082	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1083	set flag [lindex $args 0]
1084	switch -- $flag {
1085	"-all" {
1086	if { [llength $args] > 1 } {
1087	error "CurrentDatasets: can't specify dataobj after \"-all\""
1088	}
1089	set dlist [get -objects]
1090	}
1091	"-visible" {
1092	if { [llength $args] > 1 } {
1093	set dlist {}
1094	set args [lrange $args 1 end]
1095	foreach dataobj $args {
1096	if { [info exists _obj2ovride($dataobj-raise)] } {
1097	lappend dlist $dataobj
1098	}
1099	}
1100	} else {
1101	set dlist [get -visible]
1102	}
1103	}
1104	default {
1105	set dlist $args
1106	}
1107	}
1108	set rlist ""
1109	foreach dataobj $dlist {
1110	foreach comp [$dataobj components] {
1111	set tag $dataobj-$comp
1112	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1113	lappend rlist $tag
1114	}
1115	}
1116	}
1117	return $rlist
1118	}
1119
1120	# ----------------------------------------------------------------------
1121	# USAGE: Zoom in
1122	# USAGE: Zoom out
1123	# USAGE: Zoom reset
1124	#
1125	# Called automatically when the user clicks on one of the zoom
1126	# controls for this widget. Changes the zoom for the current view.
1127	# ----------------------------------------------------------------------
1128	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1129	switch -- $option {
1130	"in" {
1131	set _view(zoom) [expr {$_view(zoom)*1.25}]
1132	SendCmd "camera zoom $_view(zoom)"
1133	}
1134	"out" {
1135	set _view(zoom) [expr {$_view(zoom)*0.8}]
1136	SendCmd "camera zoom $_view(zoom)"
1137	}
1138	"reset" {
1139	array set _view {
1140	qw 0.853553
1141	qx -0.353553
1142	qy 0.353553
1143	qz 0.146447
1144	zoom 1.0
1145	xpan 0
1146	ypan 0
1147	}
1148	if { $_first != "" } {
1149	set location [$_first hints camera]
1150	if { $location != "" } {
1151	array set _view $location
1152	}
1153	}
1154	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1155	$_arcball quaternion $q
1156	SendCmd "camera reset"
1157	DoRotate
1158	}
1159	}
1160	}
1161
1162	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1163	set x $_view(xpan)
1164	set y $_view(ypan)
1165	SendCmd "camera pan $x $y"
1166	}
1167
1168
1169	# ----------------------------------------------------------------------
1170	# USAGE: Rotate click <x> <y>
1171	# USAGE: Rotate drag <x> <y>
1172	# USAGE: Rotate release <x> <y>
1173	#
1174	# Called automatically when the user clicks/drags/releases in the
1175	# plot area. Moves the plot according to the user's actions.
1176	# ----------------------------------------------------------------------
1177	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1178	switch -- $option {
1179	"click" {
1180	$itk_component(view) configure -cursor fleur
1181	set _click(x) $x
1182	set _click(y) $y
1183	}
1184	"drag" {
1185	if {[array size _click] == 0} {
1186	Rotate click $x $y
1187	} else {
1188	set w [winfo width $itk_component(view)]
1189	set h [winfo height $itk_component(view)]
1190	if {$w <= 0 \|\| $h <= 0} {
1191	return
1192	}
1193
1194	if {[catch {
1195	# this fails sometimes for no apparent reason
1196	set dx [expr {double($x-$_click(x))/$w}]
1197	set dy [expr {double($y-$_click(y))/$h}]
1198	}]} {
1199	return
1200	}
1201	if { $dx == 0 && $dy == 0 } {
1202	return
1203	}
1204	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1205	EventuallyRotate $q
1206	set _click(x) $x
1207	set _click(y) $y
1208	}
1209	}
1210	"release" {
1211	Rotate drag $x $y
1212	$itk_component(view) configure -cursor ""
1213	catch {unset _click}
1214	}
1215	default {
1216	error "bad option \"$option\": should be click, drag, release"
1217	}
1218	}
1219	}
1220
1221	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1222	foreach tag [CurrentDatasets -visible] {
1223	SendCmdNoSplash "dataset getscalar pixel $x $y $tag"
1224	}
1225	}
1226
1227	# ----------------------------------------------------------------------
1228	# USAGE: $this Pan click x y
1229	# $this Pan drag x y
1230	# $this Pan release x y
1231	#
1232	# Called automatically when the user clicks on one of the zoom
1233	# controls for this widget. Changes the zoom for the current view.
1234	# ----------------------------------------------------------------------
1235	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1236	switch -- $option {
1237	"set" {
1238	set w [winfo width $itk_component(view)]
1239	set h [winfo height $itk_component(view)]
1240	set x [expr $x / double($w)]
1241	set y [expr $y / double($h)]
1242	set _view(xpan) [expr $_view(xpan) + $x]
1243	set _view(ypan) [expr $_view(ypan) + $y]
1244	PanCamera
1245	return
1246	}
1247	"click" {
1248	set _click(x) $x
1249	set _click(y) $y
1250	$itk_component(view) configure -cursor hand1
1251	}
1252	"drag" {
1253	if { ![info exists _click(x)] } {
1254	set _click(x) $x
1255	}
1256	if { ![info exists _click(y)] } {
1257	set _click(y) $y
1258	}
1259	set w [winfo width $itk_component(view)]
1260	set h [winfo height $itk_component(view)]
1261	set dx [expr ($_click(x) - $x)/double($w)]
1262	set dy [expr ($_click(y) - $y)/double($h)]
1263	set _click(x) $x
1264	set _click(y) $y
1265	set _view(xpan) [expr $_view(xpan) - $dx]
1266	set _view(ypan) [expr $_view(ypan) - $dy]
1267	PanCamera
1268	}
1269	"release" {
1270	Pan drag $x $y
1271	$itk_component(view) configure -cursor ""
1272	}
1273	default {
1274	error "unknown option \"$option\": should set, click, drag, or release"
1275	}
1276	}
1277	}
1278
1279	# ----------------------------------------------------------------------
1280	# USAGE: InitSettings <what> ?<value>?
1281	#
1282	# Used internally to update rendering settings whenever parameters
1283	# change in the popup settings panel. Sends the new settings off
1284	# to the back end.
1285	# ----------------------------------------------------------------------
1286	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1287	foreach spec $args {
1288	if { [info exists _settings($_first-$spec)] } {
1289	# Reset global setting with dataobj specific setting
1290	set _settings($spec) $_settings($_first-$spec)
1291	}
1292	AdjustSetting $spec
1293	}
1294	}
1295
1296	#
1297	# AdjustSetting --
1298	#
1299	# Changes/updates a specific setting in the widget. There are
1300	# usually user-setable option. Commands are sent to the render
1301	# server.
1302	#
1303	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1304	if { ![isconnected] } {
1305	return
1306	}
1307	switch -- $what {
1308	"isosurfaceOpacity" {
1309	set val $_settings(isosurfaceOpacity)
1310	set sval [expr { 0.01 * double($val) }]
1311	SendCmd "contour3d opacity $sval"
1312	}
1313	"isosurfaceWireframe" {
1314	set bool $_settings(isosurfaceWireframe)
1315	SendCmd "contour3d wireframe $bool"
1316	}
1317	"isosurfaceVisible" {
1318	set bool $_settings(isosurfaceVisible)
1319	SendCmd "contour3d visible $bool"
1320	if { $bool } {
1321	Rappture::Tooltip::for $itk_component(contour) \
1322	"Hide the isosurface"
1323	} else {
1324	Rappture::Tooltip::for $itk_component(contour) \
1325	"Show the isosurface"
1326	}
1327	}
1328	"isosurfaceLighting" {
1329	set bool $_settings(isosurfaceLighting)
1330	SendCmd "contour3d lighting $bool"
1331	}
1332	"isosurfaceEdges" {
1333	set bool $_settings(isosurfaceEdges)
1334	SendCmd "contour3d edges $bool"
1335	}
1336	"isosurfaceOutline" {
1337	set bool $_settings(isosurfaceOutline)
1338	SendCmd "dataset outline $bool"
1339	}
1340	"background" {
1341	set bgcolor [$itk_component(background) value]
1342	array set fgcolors {
1343	"black" "white"
1344	"white" "black"
1345	"grey" "black"
1346	}
1347	configure -plotbackground $bgcolor \
1348	-plotforeground $fgcolors($bgcolor)
1349	$itk_component(view) delete "legend"
1350	DrawLegend
1351	}
1352	"axesVisible" {
1353	set bool $_settings(axesVisible)
1354	SendCmd "axis visible all $bool"
1355	}
1356	"axisLabelsVisible" {
1357	set bool $_settings(axisLabelsVisible)
1358	SendCmd "axis labels all $bool"
1359	}
1360	"axisXGrid" - "axisYGrid" - "axisZGrid" {
1361	set axis [string tolower [string range $what 4 4]]
1362	set bool $_settings($what)
1363	SendCmd "axis grid $axis $bool"
1364	}
1365	"axisMode" {
1366	set mode [$itk_component(axisMode) value]
1367	set mode [$itk_component(axisMode) translate $mode]
1368	set _settings($what) $mode
1369	SendCmd "axis flymode $mode"
1370	}
1371	"cutplaneEdges" {
1372	set bool $_settings($what)
1373	foreach dataset [CurrentDatasets -visible] {
1374	SendCmd "cutplane edges $bool $dataset"
1375	}
1376	}
1377	"cutplaneVisible" {
1378	set bool $_settings($what)
1379	foreach dataset [CurrentDatasets -visible] {
1380	SendCmd "cutplane visible $bool $dataset"
1381	}
1382	}
1383	"cutplaneWireframe" {
1384	set bool $_settings($what)
1385	foreach dataset [CurrentDatasets -visible] {
1386	SendCmd "cutplane wireframe $bool $dataset"
1387	}
1388	}
1389	"cutplaneLighting" {
1390	set bool $_settings($what)
1391	foreach dataset [CurrentDatasets -visible] {
1392	SendCmd "cutplane lighting $bool $dataset"
1393	}
1394	}
1395	"cutplaneOpacity" {
1396	set val $_settings($what)
1397	set sval [expr { 0.01 * double($val) }]
1398	foreach dataset [CurrentDatasets -visible] {
1399	SendCmd "cutplane opacity $sval $dataset"
1400	}
1401	}
1402	"cutplaneXVisible" - "cutplaneYVisible" - "cutplaneZVisible" {
1403	set axis [string tolower [string range $what 8 8]]
1404	set bool $_settings($what)
1405	if { $bool } {
1406	$itk_component(${axis}position) configure -state normal \
1407	-troughcolor white
1408	} else {
1409	$itk_component(${axis}position) configure -state disabled \
1410	-troughcolor grey82
1411	}
1412	SendCmd "cutplane axis $axis $bool"
1413	}
1414	"cutplaneXPosition" - "cutplaneYPosition" - "cutplaneZPosition" {
1415	set axis [string tolower [string range $what 8 8]]
1416	set pos [expr $_settings($what) * 0.01]
1417	foreach dataset [CurrentDatasets -visible] {
1418	SendCmd "cutplane slice ${axis} ${pos} $dataset"
1419	}
1420	set _cutplanePending 0
1421	}
1422	"isosurfaceVisible" {
1423	set bool $_settings($what)
1424	foreach dataset [CurrentDatasets -visible] {
1425	SendCmd "contour3d visible $bool $dataset"
1426	}
1427	set _settings(isosurfaceVisible) $bool
1428	if { $bool } {
1429	Rappture::Tooltip::for $itk_component(contour) \
1430	"Hide the isosurface"
1431	} else {
1432	Rappture::Tooltip::for $itk_component(contour) \
1433	"Show the isosurface"
1434	}
1435	DrawLegend
1436	}
1437	"colormapPalette" {
1438	set color [$itk_component(palette) value]
1439	set _settings(colormapPalette) $color
1440	if { $color == "none" } {
1441	if { $_settings(colormapVisible) } {
1442	SendCmd "contour3d surface 0"
1443	set _settings(colormapVisible) 0
1444	}
1445	} else {
1446	if { !$_settings(colormapVisible) } {
1447	SendCmd "contour3d surface 1"
1448	set _settings(colormapVisible) 1
1449	}
1450	ResetColormap $color
1451	SendCmd "contour3d colormap $_currentColormap"
1452	SendCmd "cutplane colormap $_currentColormap"
1453	}
1454	EventuallyRequestLegend
1455	}
1456	"isolineColor" {
1457	set color [$itk_component(isolineColor) value]
1458	set _settings(isolineColor) $color
1459	DrawLegend
1460	}
1461	"isosurfaceOpacity" {
1462	set val $_settings(isosurfaceOpacity)
1463	set sval [expr { 0.01 * double($val) }]
1464	foreach dataset [CurrentDatasets -visible $_first] {
1465	SendCmd "contour3d opacity $sval $dataset"
1466	}
1467	}
1468	"isosurfaceLighting" {
1469	set bool $_settings(isosurfaceLighting)
1470	foreach dataset [CurrentDatasets -visible $_first] {
1471	SendCmd "contour3d lighting $bool $dataset"
1472	}
1473	}
1474	"field" {
1475	set label [$itk_component(field) value]
1476	set fname [$itk_component(field) translate $label]
1477	set _settings(field) $fname
1478	if { [info exists _fields($fname)] } {
1479	foreach { label units components } $_fields($fname) break
1480	if { $components > 1 } {
1481	set _colorMode vmag
1482	} else {
1483	set _colorMode scalar
1484	}
1485	set _curFldName $fname
1486	set _curFldLabel $label
1487	} else {
1488	puts stderr "unknown field \"$fname\""
1489	return
1490	}
1491	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1492	SendCmd "contour3d colormode $_colorMode $_curFldName"
1493	SendCmd "cutplane colormode $_colorMode $_curFldName"
1494	SendCmd "camera reset"
1495	DrawLegend
1496	}
1497	"legendVisible" {
1498	if { !$_settings(legendVisible) } {
1499	$itk_component(view) delete legend
1500	}
1501	DrawLegend
1502	}
1503	default {
1504	error "don't know how to fix $what"
1505	}
1506	}
1507	}
1508
1509
1510	#
1511	# RequestLegend --
1512	#
1513	# Request a new legend from the server. The size of the legend
1514	# is determined from the height of the canvas.
1515	#
1516	# This should be called when
1517	# 1. A new current colormap is set.
1518	# 2. Window is resized.
1519	# 3. The limits of the data have changed. (Just need a redraw).
1520	# 4. Number of isolines have changed. (Just need a redraw).
1521	# 5. Legend becomes visible (Just need a redraw).
1522	#
1523	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1524	if { ![info exists _fields($_curFldName)] } {
1525	return
1526	}
1527	set fname $_curFldName
1528	set _legendPending 0
1529	set font "Arial 8"
1530	set lineht [font metrics $font -linespace]
1531	set c $itk_component(view)
1532	set w 12
1533	set h [expr {$_height - 2 * ($lineht + 2)}]
1534	if { $h < 1} {
1535	return
1536	}
1537	if { [string match "component*" $fname] } {
1538	set title ""
1539	} else {
1540	if { [info exists _fields($fname)] } {
1541	foreach { title units } $_fields($fname) break
1542	if { $units != "" } {
1543	set title [format "%s (%s)" $title $units]
1544	}
1545	} else {
1546	set title $fname
1547	}
1548	}
1549	# If there's a title too, substract one more line
1550	if { $title != "" } {
1551	incr h -$lineht
1552	}
1553	# Set the legend on the first heightmap dataset.
1554	if { $_currentColormap != "" } {
1555	set cmap $_currentColormap
1556	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1557	}
1558	}
1559
1560	#
1561	# BuildColormap --
1562	#
1563	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name stylelist } {
1564	array set style $stylelist
1565	set cmap [ColorsToColormap $style(-color)]
1566	if { [llength $cmap] == 0 } {
1567	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1568	}
1569	if { ![info exists _settings(contour-opacity)] } {
1570	set _settings(contour-opacity) $style(-opacity)
1571	}
1572	set max $_settings(contour-opacity)
1573
1574	set wmap "0.0 1.0 1.0 1.0"
1575	SendCmd "colormap add $name { $cmap } { $wmap }"
1576	}
1577
1578	# ----------------------------------------------------------------------
1579	# CONFIGURATION OPTION: -plotbackground
1580	# ----------------------------------------------------------------------
1581	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1582	if { [isconnected] } {
1583	set rgb [Color2RGB $itk_option(-plotbackground)]
1584	SendCmd "screen bgcolor $rgb"
1585	}
1586	}
1587
1588	# ----------------------------------------------------------------------
1589	# CONFIGURATION OPTION: -plotforeground
1590	# ----------------------------------------------------------------------
1591	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1592	if { [isconnected] } {
1593	set rgb [Color2RGB $itk_option(-plotforeground)]
1594	SendCmd "axis color all $rgb"
1595	SendCmd "dataset color $rgb"
1596	SendCmd "cutplane ccolor $rgb"
1597	}
1598	}
1599
1600	itcl::body Rappture::VtkIsosurfaceViewer::limits { dataobj } {
1601	foreach { limits(xmin) limits(xmax) } [$dataobj limits x] break
1602	foreach { limits(ymin) limits(ymax) } [$dataobj limits y] break
1603	foreach { limits(zmin) limits(zmax) } [$dataobj limits z] break
1604	foreach { limits(vmin) limits(vmax) } [$dataobj limits v] break
1605	return [array get limits]
1606	}
1607
1608	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1609
1610	set fg [option get $itk_component(hull) font Font]
1611	#set bfg [option get $itk_component(hull) boldFont Font]
1612
1613	set inner [$itk_component(main) insert end \
1614	-title "Isosurface Settings" \
1615	-icon [Rappture::icon volume-on]]
1616	$inner configure -borderwidth 4
1617
1618	checkbutton $inner.contour \
1619	-text "Isosurfaces" \
1620	-variable [itcl::scope _settings(isosurfaceVisible)] \
1621	-command [itcl::code $this AdjustSetting isosurfaceVisible] \
1622	-font "Arial 9"
1623
1624	checkbutton $inner.wireframe \
1625	-text "Wireframe" \
1626	-variable [itcl::scope _settings(isosurfaceWireframe)] \
1627	-command [itcl::code $this AdjustSetting isosurfaceWireframe] \
1628	-font "Arial 9"
1629
1630	checkbutton $inner.lighting \
1631	-text "Enable Lighting" \
1632	-variable [itcl::scope _settings(isosurfaceLighting)] \
1633	-command [itcl::code $this AdjustSetting isosurfaceLighting] \
1634	-font "Arial 9"
1635
1636	checkbutton $inner.edges \
1637	-text "Edges" \
1638	-variable [itcl::scope _settings(isosurfaceEdges)] \
1639	-command [itcl::code $this AdjustSetting isosurfaceEdges] \
1640	-font "Arial 9"
1641
1642	checkbutton $inner.outline \
1643	-text "Outline" \
1644	-variable [itcl::scope _settings(isosurfaceOutline)] \
1645	-command [itcl::code $this AdjustSetting isosurfaceOutline] \
1646	-font "Arial 9"
1647
1648	checkbutton $inner.legend \
1649	-text "Legend" \
1650	-variable [itcl::scope _settings(legendVisible)] \
1651	-command [itcl::code $this AdjustSetting legendVisible] \
1652	-font "Arial 9"
1653
1654	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1655	itk_component add isolineColor {
1656	Rappture::Combobox $inner.linecolor -width 10 -editable no
1657	}
1658	$inner.linecolor choices insert end \
1659	"black" "black" \
1660	"blue" "blue" \
1661	"cyan" "cyan" \
1662	"green" "green" \
1663	"grey" "grey" \
1664	"magenta" "magenta" \
1665	"orange" "orange" \
1666	"red" "red" \
1667	"white" "white" \
1668	"none" "none"
1669
1670	$itk_component(isolineColor) value "white"
1671	bind $inner.linecolor <<Value>> \
1672	[itcl::code $this AdjustSetting isolineColor]
1673
1674	label $inner.background_l -text "Background" -font "Arial 9"
1675	itk_component add background {
1676	Rappture::Combobox $inner.background -width 10 -editable no
1677	}
1678	$inner.background choices insert end \
1679	"black" "black" \
1680	"white" "white" \
1681	"grey" "grey"
1682
1683	$itk_component(background) value $_settings(background)
1684	bind $inner.background <<Value>> [itcl::code $this AdjustSetting background]
1685
1686	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1687	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1688	-variable [itcl::scope _settings(isosurfaceOpacity)] \
1689	-width 10 \
1690	-showvalue off \
1691	-command [itcl::code $this AdjustSetting isosurfaceOpacity]
1692
1693	label $inner.scale_l -text "Scale" -font "Arial 9"
1694	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1695	-variable [itcl::scope _settings(contour-scale)] \
1696	-width 10 \
1697	-showvalue off \
1698	-command [itcl::code $this AdjustSetting contour-scale]
1699
1700	label $inner.field_l -text "Field" -font "Arial 9"
1701	itk_component add field {
1702	Rappture::Combobox $inner.field -width 10 -editable no
1703	}
1704	bind $inner.field <<Value>> \
1705	[itcl::code $this AdjustSetting field]
1706
1707	label $inner.palette_l -text "Palette" -font "Arial 9"
1708	itk_component add palette {
1709	Rappture::Combobox $inner.palette -width 10 -editable no
1710	}
1711	$inner.palette choices insert end \
1712	"BCGYR" "BCGYR" \
1713	"BGYOR" "BGYOR" \
1714	"blue" "blue" \
1715	"blue-to-brown" "blue-to-brown" \
1716	"blue-to-orange" "blue-to-orange" \
1717	"blue-to-grey" "blue-to-grey" \
1718	"green-to-magenta" "green-to-magenta" \
1719	"greyscale" "greyscale" \
1720	"nanohub" "nanohub" \
1721	"rainbow" "rainbow" \
1722	"spectral" "spectral" \
1723	"ROYGB" "ROYGB" \
1724	"RYGCB" "RYGCB" \
1725	"brown-to-blue" "brown-to-blue" \
1726	"grey-to-blue" "grey-to-blue" \
1727	"orange-to-blue" "orange-to-blue"
1728
1729	$itk_component(palette) value "BCGYR"
1730	bind $inner.palette <<Value>> \
1731	[itcl::code $this AdjustSetting colormapPalette]
1732
1733	blt::table $inner \
1734	0,0 $inner.palette_l -anchor w -pady 2 \
1735	0,1 $inner.palette -anchor w -pady 2 -fill x \
1736	1,0 $inner.linecolor_l -anchor w -pady 2 \
1737	1,1 $inner.linecolor -anchor w -pady 2 -fill x \
1738	2,0 $inner.background_l -anchor w -pady 2 \
1739	2,1 $inner.background -anchor w -pady 2 -fill x \
1740	3,0 $inner.contour -anchor w -pady 2 -cspan 2 \
1741	4,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1742	5,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1743	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1744	7,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1745	8,0 $inner.legend -anchor w -pady 2 \
1746	9,0 $inner.opacity_l -anchor w -pady 2 \
1747	9,1 $inner.opacity -fill x -pady 2 -fill x \
1748	10,0 $inner.field_l -anchor w -pady 2 \
1749	10,1 $inner.field -anchor w -pady 2 -fill x \
1750
1751	blt::table configure $inner r* c* -resize none
1752	blt::table configure $inner r11 c1 -resize expand
1753	}
1754
1755	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1756
1757	set fg [option get $itk_component(hull) font Font]
1758	#set bfg [option get $itk_component(hull) boldFont Font]
1759
1760	set inner [$itk_component(main) insert end \
1761	-title "Axis Settings" \
1762	-icon [Rappture::icon axis1]]
1763	$inner configure -borderwidth 4
1764
1765	checkbutton $inner.visible \
1766	-text "Show Axes" \
1767	-variable [itcl::scope _settings(axesVisible)] \
1768	-command [itcl::code $this AdjustSetting axesVisible] \
1769	-font "Arial 9"
1770
1771	checkbutton $inner.labels \
1772	-text "Show Axis Labels" \
1773	-variable [itcl::scope _settings(axisLabelsVisible)] \
1774	-command [itcl::code $this AdjustSetting axisLabelsVisible] \
1775	-font "Arial 9"
1776
1777	checkbutton $inner.gridx \
1778	-text "Show X Grid" \
1779	-variable [itcl::scope _settings(axisXGrid)] \
1780	-command [itcl::code $this AdjustSetting axisXGrid] \
1781	-font "Arial 9"
1782	checkbutton $inner.gridy \
1783	-text "Show Y Grid" \
1784	-variable [itcl::scope _settings(axisYGrid)] \
1785	-command [itcl::code $this AdjustSetting axisYGrid] \
1786	-font "Arial 9"
1787	checkbutton $inner.gridz \
1788	-text "Show Z Grid" \
1789	-variable [itcl::scope _settings(axisZGrid)] \
1790	-command [itcl::code $this AdjustSetting axisZGrid] \
1791	-font "Arial 9"
1792
1793	label $inner.mode_l -text "Mode" -font "Arial 9"
1794
1795	itk_component add axisMode {
1796	Rappture::Combobox $inner.mode -width 10 -editable no
1797	}
1798	$inner.mode choices insert end \
1799	"static_triad" "static" \
1800	"closest_triad" "closest" \
1801	"furthest_triad" "furthest" \
1802	"outer_edges" "outer"
1803	$itk_component(axisMode) value "static"
1804	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axisMode]
1805
1806	blt::table $inner \
1807	0,0 $inner.visible -anchor w -cspan 2 \
1808	1,0 $inner.labels -anchor w -cspan 2 \
1809	2,0 $inner.gridx -anchor w -cspan 2 \
1810	3,0 $inner.gridy -anchor w -cspan 2 \
1811	4,0 $inner.gridz -anchor w -cspan 2 \
1812	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1813	6,0 $inner.mode -fill x -cspan 2
1814
1815	blt::table configure $inner r* c* -resize none
1816	blt::table configure $inner r7 c1 -resize expand
1817	}
1818
1819
1820	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1821	set inner [$itk_component(main) insert end \
1822	-title "Camera Settings" \
1823	-icon [Rappture::icon camera]]
1824	$inner configure -borderwidth 4
1825
1826	set labels { qx qy qz qw xpan ypan zoom }
1827	set row 0
1828	foreach tag $labels {
1829	label $inner.${tag}label -text $tag -font "Arial 9"
1830	entry $inner.${tag} -font "Arial 9" -bg white \
1831	-textvariable [itcl::scope _view($tag)]
1832	bind $inner.${tag} <KeyPress-Return> \
1833	[itcl::code $this camera set ${tag}]
1834	blt::table $inner \
1835	$row,0 $inner.${tag}label -anchor e -pady 2 \
1836	$row,1 $inner.${tag} -anchor w -pady 2
1837	blt::table configure $inner r$row -resize none
1838	incr row
1839	}
1840	checkbutton $inner.ortho \
1841	-text "Orthographic Projection" \
1842	-variable [itcl::scope _view(ortho)] \
1843	-command [itcl::code $this camera set ortho] \
1844	-font "Arial 9"
1845	blt::table $inner \
1846	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1847	blt::table configure $inner r$row -resize none
1848	incr row
1849
1850	blt::table configure $inner c0 c1 -resize none
1851	blt::table configure $inner c2 -resize expand
1852	blt::table configure $inner r$row -resize expand
1853	}
1854
1855	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
1856
1857	set fg [option get $itk_component(hull) font Font]
1858
1859	set inner [$itk_component(main) insert end \
1860	-title "Cutplane Settings" \
1861	-icon [Rappture::icon cutbutton]]
1862
1863	$inner configure -borderwidth 4
1864
1865	checkbutton $inner.visible \
1866	-text "Cutplanes" \
1867	-variable [itcl::scope _settings(cutplaneVisible)] \
1868	-command [itcl::code $this AdjustSetting cutplaneVisible] \
1869	-font "Arial 9"
1870
1871	checkbutton $inner.wireframe \
1872	-text "Wireframe" \
1873	-variable [itcl::scope _settings(cutplaneWireframe)] \
1874	-command [itcl::code $this AdjustSetting cutplaneWireframe] \
1875	-font "Arial 9"
1876
1877	checkbutton $inner.lighting \
1878	-text "Enable Lighting" \
1879	-variable [itcl::scope _settings(cutplaneLighting)] \
1880	-command [itcl::code $this AdjustSetting cutplaneLighting] \
1881	-font "Arial 9"
1882
1883	checkbutton $inner.edges \
1884	-text "Edges" \
1885	-variable [itcl::scope _settings(cutplaneEdges)] \
1886	-command [itcl::code $this AdjustSetting cutplaneEdges] \
1887	-font "Arial 9"
1888
1889	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1890	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1891	-variable [itcl::scope _settings(cutplaneOpacity)] \
1892	-width 10 \
1893	-showvalue off \
1894	-command [itcl::code $this AdjustSetting cutplaneOpacity]
1895	$inner.opacity set $_settings(cutplaneOpacity)
1896
1897	# X-value slicer...
1898	itk_component add xbutton {
1899	Rappture::PushButton $inner.xbutton \
1900	-onimage [Rappture::icon x-cutplane-red] \
1901	-offimage [Rappture::icon x-cutplane-red] \
1902	-command [itcl::code $this AdjustSetting cutplaneXVisible] \
1903	-variable [itcl::scope _settings(cutplaneXVisible)] \
1904	}
1905	Rappture::Tooltip::for $itk_component(xbutton) \
1906	"Toggle the X-axis cutplane on/off"
1907	$itk_component(xbutton) select
1908	itk_component add xposition {
1909	::scale $inner.xval -from 100 -to 0 \
1910	-width 10 -orient vertical -showvalue yes \
1911	-borderwidth 1 -highlightthickness 0 \
1912	-command [itcl::code $this EventuallySetCutplane x] \
1913	-variable [itcl::scope _settings(cutplaneXPosition)] \
1914	-foreground red2 -font "Arial 9 bold"
1915	} {
1916	usual
1917	ignore -borderwidth -highlightthickness -foreground -font -background
1918	}
1919	# Set the default cutplane value before disabling the scale.
1920	$itk_component(xposition) set 50
1921	$itk_component(xposition) configure -state disabled
1922	Rappture::Tooltip::for $itk_component(xposition) \
1923	"@[itcl::code $this Slice tooltip x]"
1924
1925	# Y-value slicer...
1926	itk_component add ybutton {
1927	Rappture::PushButton $inner.ybutton \
1928	-onimage [Rappture::icon y-cutplane-green] \
1929	-offimage [Rappture::icon y-cutplane-green] \
1930	-command [itcl::code $this AdjustSetting cutplaneYVisible] \
1931	-variable [itcl::scope _settings(cutplaneYVisible)] \
1932	}
1933	Rappture::Tooltip::for $itk_component(ybutton) \
1934	"Toggle the Y-axis cutplane on/off"
1935	$itk_component(ybutton) select
1936
1937	itk_component add yposition {
1938	::scale $inner.yval -from 100 -to 0 \
1939	-width 10 -orient vertical -showvalue yes \
1940	-borderwidth 1 -highlightthickness 0 \
1941	-command [itcl::code $this EventuallySetCutplane y] \
1942	-variable [itcl::scope _settings(cutplaneYPosition)] \
1943	-foreground green3 -font "Arial 9 bold"
1944	} {
1945	usual
1946	ignore -borderwidth -highlightthickness -foreground -font
1947	}
1948	Rappture::Tooltip::for $itk_component(yposition) \
1949	"@[itcl::code $this Slice tooltip y]"
1950	# Set the default cutplane value before disabling the scale.
1951	$itk_component(yposition) set 50
1952	$itk_component(yposition) configure -state disabled
1953
1954	# Z-value slicer...
1955	itk_component add zbutton {
1956	Rappture::PushButton $inner.zbutton \
1957	-onimage [Rappture::icon z-cutplane-blue] \
1958	-offimage [Rappture::icon z-cutplane-blue] \
1959	-command [itcl::code $this AdjustSetting cutplaneZVisible] \
1960	-variable [itcl::scope _settings(cutplaneZVisible)] \
1961	} {
1962	usual
1963	ignore -foreground
1964	}
1965	Rappture::Tooltip::for $itk_component(zbutton) \
1966	"Toggle the Z-axis cutplane on/off"
1967	$itk_component(zbutton) select
1968
1969	itk_component add zposition {
1970	::scale $inner.zval -from 100 -to 0 \
1971	-width 10 -orient vertical -showvalue yes \
1972	-borderwidth 1 -highlightthickness 0 \
1973	-command [itcl::code $this EventuallySetCutplane z] \
1974	-variable [itcl::scope _settings(cutplaneZPosition)] \
1975	-foreground blue3 -font "Arial 9 bold"
1976	} {
1977	usual
1978	ignore -borderwidth -highlightthickness -foreground -font
1979	}
1980	$itk_component(zposition) set 50
1981	$itk_component(zposition) configure -state disabled
1982	Rappture::Tooltip::for $itk_component(zposition) \
1983	"@[itcl::code $this Slice tooltip z]"
1984
1985	blt::table $inner \
1986	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
1987	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
1988	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
1989	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
1990	4,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
1991	4,1 $inner.opacity -fill x -pady 2 -cspan 3 \
1992	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
1993	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
1994	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
1995	6,1 $inner.xval -fill y -rspan 4 \
1996	6,2 $inner.yval -fill y -rspan 4 \
1997	6,3 $inner.zval -fill y -rspan 4 \
1998
1999
2000	blt::table configure $inner r* c* -resize none
2001	blt::table configure $inner r9 c4 -resize expand
2002	blt::table configure $inner r5 -height 0.12i
2003	}
2004
2005
2006
2007	#
2008	# camera --
2009	#
2010	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2011	switch -- $option {
2012	"show" {
2013	puts [array get _view]
2014	}
2015	"set" {
2016	set who [lindex $args 0]
2017	set x $_view($who)
2018	set code [catch { string is double $x } result]
2019	if { $code != 0 \|\| !$result } {
2020	return
2021	}
2022	switch -- $who {
2023	"ortho" {
2024	if {$_view(ortho)} {
2025	SendCmd "camera mode ortho"
2026	} else {
2027	SendCmd "camera mode persp"
2028	}
2029	}
2030	"xpan" - "ypan" {
2031	PanCamera
2032	}
2033	"qx" - "qy" - "qz" - "qw" {
2034	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2035	$_arcball quaternion $q
2036	EventuallyRotate $q
2037	}
2038	"zoom" {
2039	SendCmd "camera zoom $_view(zoom)"
2040	}
2041	}
2042	}
2043	}
2044	}
2045
2046	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2047	set bytes ""
2048	foreach dataobj [get] {
2049	foreach cname [$dataobj components] {
2050	set tag $dataobj-$cname
2051	set contents [$dataobj vtkdata $cname]
2052	append bytes "$contents\n\n"
2053	}
2054	}
2055	return [list .vtk $bytes]
2056	}
2057
2058	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2059	if { [image width $_image(download)] > 0 &&
2060	[image height $_image(download)] > 0 } {
2061	set bytes [$_image(download) data -format "jpeg -quality 100"]
2062	set bytes [Rappture::encoding::decode -as b64 $bytes]
2063	return [list .jpg $bytes]
2064	}
2065	return ""
2066	}
2067
2068	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2069	Rappture::Balloon $popup \
2070	-title "[Rappture::filexfer::label downloadWord] as..."
2071	set inner [$popup component inner]
2072	label $inner.summary -text "" -anchor w
2073	radiobutton $inner.vtk_button -text "VTK data file" \
2074	-variable [itcl::scope _downloadPopup(format)] \
2075	-font "Arial 9 " \
2076	-value vtk
2077	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2078	radiobutton $inner.image_button -text "Image File" \
2079	-variable [itcl::scope _downloadPopup(format)] \
2080	-font "Arial 9 " \
2081	-value image
2082	Rappture::Tooltip::for $inner.image_button \
2083	"Save as digital image."
2084
2085	button $inner.ok -text "Save" \
2086	-highlightthickness 0 -pady 2 -padx 3 \
2087	-command $command \
2088	-compound left \
2089	-image [Rappture::icon download]
2090
2091	button $inner.cancel -text "Cancel" \
2092	-highlightthickness 0 -pady 2 -padx 3 \
2093	-command [list $popup deactivate] \
2094	-compound left \
2095	-image [Rappture::icon cancel]
2096
2097	blt::table $inner \
2098	0,0 $inner.summary -cspan 2 \
2099	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2100	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2101	4,1 $inner.cancel -width .9i -fill y \
2102	4,0 $inner.ok -padx 2 -width .9i -fill y
2103	blt::table configure $inner r3 -height 4
2104	blt::table configure $inner r4 -pady 4
2105	raise $inner.image_button
2106	$inner.vtk_button invoke
2107	return $inner
2108	}
2109
2110	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2111	# Parse style string.
2112	set tag $dataobj-$comp
2113	array set style {
2114	-color BCGYR
2115	-edges 0
2116	-edgecolor black
2117	-linewidth 1.0
2118	-opacity 0.6
2119	-wireframe 0
2120	-lighting 1
2121	-outline 0
2122	-levels 10
2123	}
2124	array set style [$dataobj style $comp]
2125	if { $dataobj != $_first } {
2126	set style(-opacity) 1
2127	}
2128	if { $_currentColormap == "" } {
2129	set stylelist [$dataobj style $comp]
2130	if { $stylelist != "" } {
2131	array set style $stylelist
2132	set stylelist [array get style]
2133	SetCurrentColormap $stylelist
2134	}
2135	$itk_component(palette) value $style(-color)
2136	}
2137	SendCmd "cutplane add $tag"
2138	SendCmd "cutplane edges 0 $tag"
2139	SendCmd "cutplane wireframe 0 $tag"
2140	SendCmd "cutplane lighting 1 $tag"
2141	SendCmd "cutplane linewidth 1 $tag"
2142
2143	#SendCmd "cutplane linecolor 1 1 1 $tag"
2144	#SendCmd "cutplane visible $tag"
2145	foreach axis { x y z } {
2146	SendCmd "cutplane slice $axis 0.5 $tag"
2147	SendCmd "cutplane axis $axis 0 $tag"
2148	}
2149	set _numContours $style(-levels)
2150	SendCmd "contour3d add numcontours $_numContours $tag"
2151	SendCmd "contour3d edges $style(-edges) $tag"
2152	SendCmd "dataset outline $style(-outline) $tag"
2153	SendCmd "dataset color [Color2RGB $itk_option(-plotforeground)]"
2154	set _settings(isosurfaceOutline) $style(-outline)
2155	set _settings(isosurfaceEdges) $style(-edges)
2156	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2157	SendCmd "contour3d lighting $style(-lighting) $tag"
2158	set _settings(isosurfaceLighting) $style(-lighting)
2159	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2160	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2161	SendCmd "contour3d opacity $style(-opacity) $tag"
2162	set _settings(isosurfaceOpacity) $style(-opacity)
2163	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2164	set _settings(isosurfaceWireframe) $style(-wireframe)
2165	set _settings(isosurfaceOpacity) [expr $style(-opacity) * 100.0]
2166	}
2167
2168	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2169	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2170	return 0
2171	}
2172	return 1
2173	}
2174
2175	#
2176	# EnterLegend --
2177	#
2178	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2179	SetLegendTip $x $y
2180	}
2181
2182	#
2183	# MotionLegend --
2184	#
2185	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2186	Rappture::Tooltip::tooltip cancel
2187	set c $itk_component(view)
2188	set cw [winfo width $c]
2189	set ch [winfo height $c]
2190	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2191	SetLegendTip $x $y
2192	}
2193	}
2194
2195	#
2196	# LeaveLegend --
2197	#
2198	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2199	Rappture::Tooltip::tooltip cancel
2200	.rappturetooltip configure -icon ""
2201	}
2202
2203	#
2204	# SetLegendTip --
2205	#
2206	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2207	set fname $_curFldName
2208	set c $itk_component(view)
2209	set w [winfo width $c]
2210	set h [winfo height $c]
2211
2212	set font "Arial 8"
2213	set lineht [font metrics $font -linespace]
2214
2215	set ih [image height $_image(legend)]
2216	set iy [expr $y - ($lineht + 2)]
2217
2218	if { [string match "component*" $fname] } {
2219	set title ""
2220	} else {
2221	if { [info exists _fields($fname)] } {
2222	foreach { title units } $_fields($fname) break
2223	if { $units != "" } {
2224	set title [format "%s (%s)" $title $units]
2225	}
2226	} else {
2227	set title $fname
2228	}
2229	}
2230	# If there's a legend title, increase the offset by the line height.
2231	if { $title != "" } {
2232	incr iy -$lineht
2233	}
2234	# Make a swatch of the selected color
2235	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2236	return
2237	}
2238	if { ![info exists _image(swatch)] } {
2239	set _image(swatch) [image create photo -width 24 -height 24]
2240	}
2241	set color [eval format "\#%02x%02x%02x" $pixel]
2242	$_image(swatch) put black -to 0 0 23 23
2243	$_image(swatch) put $color -to 1 1 22 22
2244	.rappturetooltip configure -icon $_image(swatch)
2245
2246	# Compute the value of the point
2247	if { [info exists _limits($_curFldName)] } {
2248	foreach { vmin vmax } $_limits($_curFldName) break
2249	set t [expr 1.0 - (double($iy) / double($ih-1))]
2250	set value [expr $t * ($vmax - $vmin) + $vmin]
2251	} else {
2252	set value 0.0
2253	}
2254	set tx [expr $x + 15]
2255	set ty [expr $y - 5]
2256	if { [info exists _isolines($y)] } {
2257	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2258	} else {
2259	Rappture::Tooltip::text $c [format "$title %g" $value]
2260	}
2261	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2262	}
2263
2264
2265	# ----------------------------------------------------------------------
2266	# USAGE: Slice move x\|y\|z <newval>
2267	#
2268	# Called automatically when the user drags the slider to move the
2269	# cut plane that slices 3D data. Gets the current value from the
2270	# slider and moves the cut plane to the appropriate point in the
2271	# data set.
2272	# ----------------------------------------------------------------------
2273	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2274	switch -- $option {
2275	"move" {
2276	set axis [lindex $args 0]
2277	set a [string toupper $axis]
2278	set oldval $_settings(cutplane${a}Position)
2279	set newval [lindex $args 1]
2280	if {[llength $args] != 2} {
2281	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2282	}
2283	set newpos [expr {0.01*$newval}]
2284	SendCmd "cutplane slice $axis $newpos"
2285	}
2286	"tooltip" {
2287	set axis [lindex $args 0]
2288	set val [$itk_component(${axis}position) get]
2289	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2290	}
2291	default {
2292	error "bad option \"$option\": should be axis, move, or tooltip"
2293	}
2294	}
2295	}
2296
2297	#
2298	# ReceiveLegend --
2299	#
2300	# Invoked automatically whenever the "legend" command comes in from
2301	# the rendering server. Indicates that binary image data with the
2302	# specified <size> will follow.
2303	#
2304	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2305	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2306	set _title $title
2307	regsub {\(mag\)} $title "" _title
2308	if { [IsConnected] } {
2309	set bytes [ReceiveBytes $size]
2310	if { ![info exists _image(legend)] } {
2311	set _image(legend) [image create photo]
2312	}
2313	$_image(legend) configure -data $bytes
2314	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2315	if { [catch {DrawLegend} errs] != 0 } {
2316	global errorInfo
2317	puts stderr "errs=$errs errorInfo=$errorInfo"
2318	}
2319	}
2320	}
2321
2322	#
2323	# DrawLegend --
2324	#
2325	# Draws the legend in the own canvas on the right side of the plot area.
2326	#
2327	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2328	set fname $_curFldName
2329	set c $itk_component(view)
2330	set w [winfo width $c]
2331	set h [winfo height $c]
2332	set font "Arial 8"
2333	set lineht [font metrics $font -linespace]
2334
2335	if { [string match "component*" $fname] } {
2336	set title ""
2337	} else {
2338	if { [info exists _fields($fname)] } {
2339	foreach { title units } $_fields($fname) break
2340	if { $units != "" } {
2341	set title [format "%s (%s)" $title $units]
2342	}
2343	} else {
2344	set title $fname
2345	}
2346	}
2347	set x [expr $w - 2]
2348	if { !$_settings(legendVisible) } {
2349	$c delete legend
2350	return
2351	}
2352	if { [$c find withtag "legend"] == "" } {
2353	set y 2
2354	# If there's a legend title, create a text item for the title.
2355	if { $title != "" } {
2356	$c create text $x $y \
2357	-anchor ne \
2358	-fill $itk_option(-plotforeground) -tags "title legend" \
2359	-font $font
2360	incr y $lineht
2361	}
2362	$c create text $x $y \
2363	-anchor ne \
2364	-fill $itk_option(-plotforeground) -tags "zmax legend" \
2365	-font $font
2366	incr y $lineht
2367	$c create image $x $y \
2368	-anchor ne \
2369	-image $_image(legend) -tags "colormap legend"
2370	$c create rectangle $x $y 1 1 \
2371	-fill "" -outline "" -tags "sensor legend"
2372	$c create text $x [expr {$h-2}] \
2373	-anchor se \
2374	-fill $itk_option(-plotforeground) -tags "zmin legend" \
2375	-font $font
2376	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2377	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2378	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2379	}
2380	$c delete isoline
2381	set x2 $x
2382	set iw [image width $_image(legend)]
2383	set ih [image height $_image(legend)]
2384	set x1 [expr $x2 - ($iw*12)/10]
2385	set color $_settings(isolineColor)
2386	# Draw the isolines on the legend.
2387	array unset _isolines
2388	if { $color != "none" && [info exists _limits($_curFldName)] &&
2389	$_numContours > 0 } {
2390	set pixels [blt::vector create \#auto]
2391	set values [blt::vector create \#auto]
2392	set range [image height $_image(legend)]
2393	# Order of pixels is max to min (max is at top of legend).
2394	$pixels seq $ih 0 $_numContours
2395	set offset [expr 2 + $lineht]
2396	# If there's a legend title, increase the offset by the line height.
2397	if { $title != "" } {
2398	incr offset $lineht
2399	}
2400	# Order of values is min to max.
2401	$pixels expr {round($pixels + $offset)}
2402	foreach { vmin vmax } $_limits($_curFldName) break
2403	$values seq $vmin $vmax $_numContours
2404	set tags "isoline legend"
2405	foreach pos [$pixels range 0 end] value [$values range end 0] {
2406	set y1 [expr int($pos)]
2407	for { set off 0 } { $off < 3 } { incr off } {
2408	set _isolines([expr $y1 + $off]) $value
2409	set _isolines([expr $y1 - $off]) $value
2410	}
2411	set id [$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags]
2412	}
2413	blt::vector destroy $pixels $values
2414	}
2415
2416	$c bind title <ButtonPress> [itcl::code $this Combo post]
2417	$c bind title <Enter> [itcl::code $this Combo activate]
2418	$c bind title <Leave> [itcl::code $this Combo deactivate]
2419	# Reset the item coordinates according the current size of the plot.
2420	$c itemconfigure title -text $title
2421	if { [info exists _limits($_curFldName)] } {
2422	foreach { vmin vmax } $_limits($_curFldName) break
2423	$c itemconfigure zmin -text [format %g $vmin]
2424	$c itemconfigure zmax -text [format %g $vmax]
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	set ix [image width $_image(legend)]
2436	set ih [image height $_image(legend)]
2437	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2438	$c raise sensor
2439	$c coords zmin $x [expr {$h - 2}]
2440	}
2441
2442	# ----------------------------------------------------------------------
2443	# USAGE: _dropdown post
2444	# USAGE: _dropdown unpost
2445	# USAGE: _dropdown select
2446	#
2447	# Used internally to handle the dropdown list for this combobox. The
2448	# post/unpost options are invoked when the list is posted or unposted
2449	# to manage the relief of the controlling button. The select option
2450	# is invoked whenever there is a selection from the list, to assign
2451	# the value back to the gauge.
2452	# ----------------------------------------------------------------------
2453	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
2454	set c $itk_component(view)
2455	switch -- $option {
2456	post {
2457	foreach { x1 y1 x2 y2 } [$c bbox title] break
2458	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2459	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2460	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2461	tk_popup $itk_component(fieldmenu) $x $y
2462	}
2463	activate {
2464	$c itemconfigure title -fill red
2465	}
2466	deactivate {
2467	$c itemconfigure title -fill $itk_option(-plotforeground)
2468	}
2469	invoke {
2470	$itk_component(field) value $_curFldLabel
2471	AdjustSetting field
2472	}
2473	default {
2474	error "bad option \"$option\": should be post, unpost, select"
2475	}
2476	}
2477	}
2478
2479	#
2480	# SetCurrentColormap --
2481	#
2482	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { stylelist } {
2483	array set style {
2484	-color BCGYR
2485	-levels 10
2486	-opacity 1.0
2487	}
2488	array set style $stylelist
2489
2490	set name "$style(-color):$style(-levels):$style(-opacity)"
2491	if { ![info exists _colormaps($name)] } {
2492	set stylelist [array get style]
2493	BuildColormap $name $stylelist
2494	set _colormaps($name) $stylelist
2495	}
2496	set _currentColormap $name
2497	}
2498
2499	#
2500	# BuildColormap --
2501	#
2502	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name stylelist } {
2503	array set style $stylelist
2504	set cmap [ColorsToColormap $style(-color)]
2505	if { [llength $cmap] == 0 } {
2506	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2507	}
2508	if { ![info exists _settings(isosurfaceOpacity)] } {
2509	set _settings(isosurfaceOpacity) $style(-opacity)
2510	}
2511	set max $_settings(isosurfaceOpacity)
2512
2513	set wmap "0.0 1.0 1.0 1.0"
2514	SendCmd "colormap add $name { $cmap } { $wmap }"
2515	}
2516
2517	itcl::body Rappture::VtkIsosurfaceViewer::ResetColormap { color } {
2518	array set style {
2519	-color BCGYR
2520	-levels 10
2521	-opacity 1.0
2522	}
2523	if { [info exists _colormap($_currentColormap)] } {
2524	array set style $_colormap($_currentColormap)
2525	}
2526	set style(-color) $color
2527	SetCurrentColormap [array get style]
2528	}

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