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source: branches/1.6/gui/scripts/vtkisosurfaceviewer.tcl @ 6213

Last change on this file since 6213 was 6213, checked in by ldelgass, 8 years ago
Merge cleanups from trunk (partial hand merge of r6182, not including custom range support in glyph viewer)
File size: 110.4 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkisosurfaceviewer - Vtk 3D contour object viewer
4	#
5	# It connects to the Vtkvis server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2016 HUBzero Foundation, LLC
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 { args } {
42	Rappture::VisViewer::constructor
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	private method AdjustSetting {what {value ""}}
66	private method BuildAxisTab {}
67	private method BuildCameraTab {}
68	private method BuildColormap { name }
69	private method BuildCutplanesTab {}
70	private method BuildDownloadPopup { widget command }
71	private method BuildIsosurfaceTab {}
72	private method Connect {}
73	private method CurrentDatasets {args}
74	private method DisableMouseRotationBindings {}
75	private method Disconnect {}
76	private method DoChangeContourLevels {}
77	private method DoResize {}
78	private method DoRotate {}
79	private method DrawLegend {}
80	private method EnterLegend { x y }
81	private method EventuallyChangeContourLevels {}
82	private method EventuallyRequestLegend {}
83	private method EventuallyResize { w h }
84	private method EventuallyRotate { q }
85	private method EventuallySetCutplane { axis args }
86	private method GenerateContourList {}
87	private method GetImage { args }
88	private method GetVtkData { args }
89	private method InitSettings { args }
90	private method IsValidObject { dataobj }
91	private method LeaveLegend {}
92	private method LegendB1Motion {status x y}
93	private method LegendPointToValue { x y }
94	private method LegendProbeSingleContour { x y }
95	private method LegendRangeAction { option args }
96	private method LegendRangeValidate { widget which value }
97	private method LegendTitleAction { option }
98	private method MotionLegend { x y }
99	private method MouseOver2Which {}
100	private method Pan {option x y}
101	private method PanCamera {}
102	private method Pick {x y}
103	private method QuaternionToView { q } {
104	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
105	}
106	private method Rebuild {}
107	private method ReceiveDataset { args }
108	private method ReceiveImage { args }
109	private method ReceiveLegend { colormap title vmin vmax size }
110	private method RequestLegend {}
111	private method Rotate {option x y}
112	private method SetCurrentColormap { color }
113	private method SetCurrentFieldName { dataobj }
114	private method SetLegendTip { x y }
115	private method SetMinMaxGauges { min max }
116	private method SetObjectStyle { dataobj comp }
117	private method SetOrientation { side }
118	private method SetupKeyboardBindings {}
119	private method SetupMousePanningBindings {}
120	private method SetupMouseRotationBindings {}
121	private method SetupMouseZoomBindings {}
122	private method Slice {option args}
123	private method ToggleCustomRange { args }
124	private method ViewToQuaternion {} {
125	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
126	}
127	private method Zoom {option}
128
129	private variable _arcball ""
130
131	private variable _dlist ""; # list of data objects
132	private variable _obj2ovride; # maps dataobj => style override
133	private variable _datasets; # contains all the dataobj-component
134	# datasets in the server
135	private variable _colormaps; # contains all the colormaps
136	# in the server.
137	# The name of the current colormap used. The colormap is global to all
138	# heightmaps displayed.
139	private variable _currentColormap ""
140	private variable _currentNumContours -1
141
142	private variable _click; # info used for rotate operations
143	private variable _limits; # autoscale min/max for all axes
144	private variable _view; # view params for 3D view
145	private variable _settings
146	private variable _changed
147	private variable _reset 1; # Connection to server has been reset.
148
149	private variable _first ""; # This is the topmost dataset.
150	private variable _start 0
151	private variable _title ""
152	private variable _isolines
153	private variable _contourList
154	private variable _currentLimits ""
155	private variable _widget
156	private variable _width 0
157	private variable _height 0
158	private variable _resizePending 0
159	private variable _legendPending 0
160	private variable _rotatePending 0
161	private variable _cutplanePending 0
162	private variable _field ""
163	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
164	private variable _fields
165	private variable _curFldName ""
166	private variable _curFldLabel ""
167	private variable _mouseOver ""; # what called LegendRangeAction:
168	# vmin or vmax
169	private variable _customRangeClick 1; # what called ToggleCustomRange
170
171	private common _downloadPopup; # download options from popup
172	private common _hardcopy
173	}
174
175	itk::usual VtkIsosurfaceViewer {
176	keep -background -foreground -cursor -font
177	keep -plotbackground -plotforeground
178	}
179
180	# ----------------------------------------------------------------------
181	# CONSTRUCTOR
182	# ----------------------------------------------------------------------
183	itcl::body Rappture::VtkIsosurfaceViewer::constructor {args} {
184	set _serverType "vtkvis"
185
186	#DebugOn
187	EnableWaitDialog 900
188
189	# Rebuild event
190	$_dispatcher register !rebuild
191	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
192
193	# Resize event
194	$_dispatcher register !resize
195	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
196
197	# Legend event
198	$_dispatcher register !legend
199	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
200
201	# Rotate event
202	$_dispatcher register !rotate
203	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
204
205	# Contour levels event
206	$_dispatcher register !contours
207	$_dispatcher dispatch $this !contours \
208	"[itcl::code $this DoChangeContourLevels]; list"
209
210	# X-Cutplane event
211	$_dispatcher register !xcutplane
212	$_dispatcher dispatch $this !xcutplane \
213	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
214
215	# Y-Cutplane event
216	$_dispatcher register !ycutplane
217	$_dispatcher dispatch $this !ycutplane \
218	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
219
220	# Z-Cutplane event
221	$_dispatcher register !zcutplane
222	$_dispatcher dispatch $this !zcutplane \
223	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
224
225	#
226	# Populate parser with commands handle incoming requests
227	#
228	$_parser alias image [itcl::code $this ReceiveImage]
229	$_parser alias legend [itcl::code $this ReceiveLegend]
230	$_parser alias dataset [itcl::code $this ReceiveDataset]
231
232	# Initialize the view to some default parameters.
233	array set _view {
234	-ortho 0
235	-qw 0.853553
236	-qx -0.353553
237	-qy 0.353553
238	-qz 0.146447
239	-xpan 0
240	-ypan 0
241	-zoom 1.0
242	}
243	set _arcball [blt::arcball create 100 100]
244	$_arcball quaternion [ViewToQuaternion]
245
246	array set _contourList {
247	numLevels 10
248	reqValues ""
249	updatePending 0
250	values ""
251	}
252	array set _settings {
253	-axesvisible 1
254	-axislabels 1
255	-axisminorticks 1
256	-axismode "static"
257	-background black
258	-colormap BCGYR
259	-colormapvisible 1
260	-customrange 0
261	-customrangemin 0
262	-customrangemax 1
263	-cutplaneedges 0
264	-cutplanelighting 1
265	-cutplaneopacity 1.0
266	-cutplanepreinterp 1
267	-cutplanesvisible 0
268	-cutplanewireframe 0
269	-field "Default"
270	-isolinecolor white
271	-isosurfaceedges 0
272	-isosurfacelighting 1
273	-isosurfaceopacity 0.6
274	-isosurfacevisible 1
275	-isosurfacewireframe 0
276	-legendvisible 1
277	-numcontours 10
278	-outline 0
279	-xcutplaneposition 50
280	-xcutplanevisible 1
281	-xgrid 0
282	-ycutplaneposition 50
283	-ycutplanevisible 1
284	-ygrid 0
285	-zcutplaneposition 50
286	-zcutplanevisible 1
287	-zgrid 0
288	}
289	array set _changed {
290	-colormap 0
291	-cutplaneedges 0
292	-cutplanelighting 0
293	-cutplaneopacity 0
294	-cutplanepreinterp 0
295	-cutplanesvisible 0
296	-cutplanewireframe 0
297	-isosurfaceedges 0
298	-isosurfacelighting 0
299	-isosurfaceopacity 0
300	-isosurfacevisible 0
301	-isosurfacewireframe 0
302	-numcontours 0
303	-outline 0
304	-xcutplaneposition 0
305	-xcutplanevisible 0
306	-ycutplaneposition 0
307	-ycutplanevisible 0
308	-zcutplaneposition 0
309	-zcutplanevisible 0
310	}
311	array set _widget {
312	-isosurfaceopacity 60
313	-cutplaneopacity 100
314	}
315
316	itk_component add view {
317	canvas $itk_component(plotarea).view \
318	-highlightthickness 0 -borderwidth 0
319	} {
320	usual
321	ignore -highlightthickness -borderwidth -background
322	}
323
324	itk_component add fieldmenu {
325	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
326	-tearoff 0
327	} {
328	usual
329	ignore -background -foreground -relief -tearoff
330	}
331
332	# add an editor for adjusting the legend min and max values
333	itk_component add editor {
334	Rappture::Editor $itk_interior.editor \
335	-activatecommand [itcl::code $this LegendRangeAction activate] \
336	-validatecommand [itcl::code $this LegendRangeAction validate] \
337	-applycommand [itcl::code $this LegendRangeAction apply]
338	}
339
340	set c $itk_component(view)
341	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
342	bind $c <Control-F1> [itcl::code $this ToggleConsole]
343
344	# Fix the scrollregion in case we go off screen
345	$c configure -scrollregion [$c bbox all]
346
347	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
348	set _map(cwidth) -1
349	set _map(cheight) -1
350	set _map(zoom) 1.0
351	set _map(original) ""
352
353	set f [$itk_component(main) component controls]
354	itk_component add reset {
355	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
356	-highlightthickness 0 \
357	-image [Rappture::icon reset-view] \
358	-command [itcl::code $this Zoom reset]
359	} {
360	usual
361	ignore -highlightthickness
362	}
363	pack $itk_component(reset) -side top -padx 2 -pady 2
364	Rappture::Tooltip::for $itk_component(reset) \
365	"Reset the view to the default zoom level"
366
367	itk_component add zoomin {
368	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
369	-highlightthickness 0 \
370	-image [Rappture::icon zoom-in] \
371	-command [itcl::code $this Zoom in]
372	} {
373	usual
374	ignore -highlightthickness
375	}
376	pack $itk_component(zoomin) -side top -padx 2 -pady 2
377	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
378
379	itk_component add zoomout {
380	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
381	-highlightthickness 0 \
382	-image [Rappture::icon zoom-out] \
383	-command [itcl::code $this Zoom out]
384	} {
385	usual
386	ignore -highlightthickness
387	}
388	pack $itk_component(zoomout) -side top -padx 2 -pady 2
389	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
390
391	itk_component add contour {
392	Rappture::PushButton $f.contour \
393	-onimage [Rappture::icon volume-on] \
394	-offimage [Rappture::icon volume-off] \
395	-variable [itcl::scope _settings(-isosurfacevisible)] \
396	-command [itcl::code $this AdjustSetting -isosurfacevisible]
397	}
398	$itk_component(contour) select
399	Rappture::Tooltip::for $itk_component(contour) \
400	"Hide the isosurface"
401	pack $itk_component(contour) -padx 2 -pady 2
402
403	itk_component add cutplane {
404	Rappture::PushButton $f.cutplane \
405	-onimage [Rappture::icon cutbutton] \
406	-offimage [Rappture::icon cutbutton] \
407	-variable [itcl::scope _settings(-cutplanesvisible)] \
408	-command [itcl::code $this AdjustSetting -cutplanesvisible]
409	}
410	Rappture::Tooltip::for $itk_component(cutplane) \
411	"Show the cutplanes"
412	pack $itk_component(cutplane) -padx 2 -pady 2
413
414	if { [catch {
415	BuildIsosurfaceTab
416	BuildCutplanesTab
417	BuildAxisTab
418	BuildCameraTab
419	} errs] != 0 } {
420	puts stderr errs=$errs
421	}
422
423	# Legend
424	set _image(legend) [image create photo]
425	itk_component add legend {
426	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
427	} {
428	usual
429	ignore -highlightthickness
430	rename -background -plotbackground plotBackground Background
431	}
432
433	# Hack around the Tk panewindow. The problem is that the requested
434	# size of the 3d view isn't set until an image is retrieved from
435	# the server. So the panewindow uses the tiny size.
436	set w 10000
437	pack forget $itk_component(view)
438	blt::table $itk_component(plotarea) \
439	0,0 $itk_component(view) -fill both -reqwidth $w
440	blt::table configure $itk_component(plotarea) c1 -resize none
441
442	SetupMouseRotationBindings
443	SetupMousePanningBindings
444	SetupMouseZoomBindings
445	SetupKeyboardBindings
446
447	#bind $itk_component(view) <ButtonRelease-3> \
448	# [itcl::code $this Pick %x %y]
449
450	set _image(download) [image create photo]
451
452	eval itk_initialize $args
453
454	Connect
455	}
456
457	# ----------------------------------------------------------------------
458	# DESTRUCTOR
459	# ----------------------------------------------------------------------
460	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
461	Disconnect
462	image delete $_image(plot)
463	image delete $_image(download)
464	catch { blt::arcball destroy $_arcball }
465	}
466
467	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseRotationBindings {} {
468	# Bindings for rotation via mouse
469	bind $itk_component(view) <ButtonPress-1> \
470	[itcl::code $this Rotate click %x %y]
471	bind $itk_component(view) <B1-Motion> \
472	[itcl::code $this Rotate drag %x %y]
473	bind $itk_component(view) <ButtonRelease-1> \
474	[itcl::code $this Rotate release %x %y]
475	}
476
477	itcl::body Rappture::VtkIsosurfaceViewer::DisableMouseRotationBindings {} {
478	# Bindings for rotation via mouse
479	bind $itk_component(view) <ButtonPress-1> ""
480	bind $itk_component(view) <B1-Motion> ""
481	bind $itk_component(view) <ButtonRelease-1> ""
482	}
483
484	itcl::body Rappture::VtkIsosurfaceViewer::SetupMousePanningBindings {} {
485	# Bindings for panning via mouse
486	bind $itk_component(view) <ButtonPress-2> \
487	[itcl::code $this Pan click %x %y]
488	bind $itk_component(view) <B2-Motion> \
489	[itcl::code $this Pan drag %x %y]
490	bind $itk_component(view) <ButtonRelease-2> \
491	[itcl::code $this Pan release %x %y]
492	}
493
494	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseZoomBindings {} {
495	if {[string equal "x11" [tk windowingsystem]]} {
496	# Bindings for zoom via mouse
497	bind $itk_component(view) <4> [itcl::code $this Zoom out]
498	bind $itk_component(view) <5> [itcl::code $this Zoom in]
499	}
500	}
501
502	itcl::body Rappture::VtkIsosurfaceViewer::SetupKeyboardBindings {} {
503	# Bindings for panning via keyboard
504	bind $itk_component(view) <KeyPress-Left> \
505	[itcl::code $this Pan set -10 0]
506	bind $itk_component(view) <KeyPress-Right> \
507	[itcl::code $this Pan set 10 0]
508	bind $itk_component(view) <KeyPress-Up> \
509	[itcl::code $this Pan set 0 -10]
510	bind $itk_component(view) <KeyPress-Down> \
511	[itcl::code $this Pan set 0 10]
512	bind $itk_component(view) <Shift-KeyPress-Left> \
513	[itcl::code $this Pan set -2 0]
514	bind $itk_component(view) <Shift-KeyPress-Right> \
515	[itcl::code $this Pan set 2 0]
516	bind $itk_component(view) <Shift-KeyPress-Up> \
517	[itcl::code $this Pan set 0 -2]
518	bind $itk_component(view) <Shift-KeyPress-Down> \
519	[itcl::code $this Pan set 0 2]
520
521	# Bindings for zoom via keyboard
522	bind $itk_component(view) <KeyPress-Prior> \
523	[itcl::code $this Zoom out]
524	bind $itk_component(view) <KeyPress-Next> \
525	[itcl::code $this Zoom in]
526
527	bind $itk_component(view) <Enter> "focus $itk_component(view)"
528	}
529
530	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
531	if { $_width < 2 } {
532	set _width 500
533	}
534	if { $_height < 2 } {
535	set _height 500
536	}
537	set _start [clock clicks -milliseconds]
538	SendCmd "screen size $_width $_height"
539
540	EventuallyRequestLegend
541	set _resizePending 0
542	}
543
544	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
545	GenerateContourList
546	SendCmd [list contour3d contourlist $_contourList(values)]
547	SendCmd [list camera reset]
548	DrawLegend
549	set _contourList(updatePending) 0
550	}
551
552	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
553	SendCmd "camera orient [ViewToQuaternion]"
554	set _rotatePending 0
555	}
556
557	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
558	if { !$_legendPending } {
559	set _legendPending 1
560	$_dispatcher event -idle !legend
561	}
562	}
563
564	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
565	set _width $w
566	set _height $h
567	$_arcball resize $w $h
568	if { !$_resizePending } {
569	set _resizePending 1
570	$_dispatcher event -after 400 !resize
571	}
572	}
573
574	set rotate_delay 100
575
576	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
577	QuaternionToView $q
578	if { !$_rotatePending } {
579	set _rotatePending 1
580	global rotate_delay
581	$_dispatcher event -after $rotate_delay !rotate
582	}
583	}
584
585	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
586	if { !$_cutplanePending } {
587	set _cutplanePending 1
588	$_dispatcher event -after 100 !${axis}cutplane
589	}
590	}
591
592	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
593	set n $_contourList(numLevels)
594	set _contourList(values) ""
595	if { !$_contourList(updatePending) } {
596	set _contourList(updatePending) 1
597	global rotate_delay
598	$_dispatcher event -after $rotate_delay !contours
599	}
600	}
601
602	# ----------------------------------------------------------------------
603	# USAGE: add <dataobj> ?<settings>?
604	#
605	# Clients use this to add a data object to the plot. The optional
606	# <settings> are used to configure the plot. Allowed settings are
607	# -color, -brightness, -width, -linestyle, and -raise.
608	# ----------------------------------------------------------------------
609	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
610	if { ![$dataobj isvalid] } {
611	return; # Object doesn't contain valid data.
612	}
613	array set params {
614	-color auto
615	-width 1
616	-linestyle solid
617	-brightness 0
618	-raise 0
619	-description ""
620	-param ""
621	-type ""
622	}
623	array set params $settings
624	set params(-description) ""
625	set params(-param) ""
626	array set params $settings
627
628	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
629	# can't handle -autocolors yet
630	set params(-color) black
631	}
632	set pos [lsearch -exact $_dlist $dataobj]
633	if {$pos < 0} {
634	lappend _dlist $dataobj
635	}
636	set _obj2ovride($dataobj-color) $params(-color)
637	set _obj2ovride($dataobj-width) $params(-width)
638	set _obj2ovride($dataobj-raise) $params(-raise)
639	$_dispatcher event -idle !rebuild
640	}
641
642	# ----------------------------------------------------------------------
643	# USAGE: delete ?<dataobj1> <dataobj2> ...?
644	#
645	# Clients use this to delete a dataobj from the plot. If no dataobjs
646	# are specified, then all dataobjs are deleted. No data objects are
647	# deleted. They are only removed from the display list.
648	# ----------------------------------------------------------------------
649	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
650	if { [llength $args] == 0} {
651	set args $_dlist
652	}
653	# Delete all specified dataobjs
654	set changed 0
655	foreach dataobj $args {
656	set pos [lsearch -exact $_dlist $dataobj]
657	if { $pos < 0 } {
658	continue; # Don't know anything about it.
659	}
660	# Remove it from the dataobj list.
661	set _dlist [lreplace $_dlist $pos $pos]
662	array unset _obj2ovride $dataobj-*
663	array unset _settings $dataobj-*
664	set changed 1
665	}
666	# If anything changed, then rebuild the plot
667	if { $changed } {
668	$_dispatcher event -idle !rebuild
669	}
670	}
671
672	# ----------------------------------------------------------------------
673	# USAGE: get ?-objects?
674	# USAGE: get ?-visible?
675	# USAGE: get ?-image view?
676	#
677	# Clients use this to query the list of objects being plotted, in
678	# order from bottom to top of this result. The optional "-image"
679	# flag can also request the internal images being shown.
680	# ----------------------------------------------------------------------
681	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
682	if {[llength $args] == 0} {
683	set args "-objects"
684	}
685
686	set op [lindex $args 0]
687	switch -- $op {
688	"-objects" {
689	# put the dataobj list in order according to -raise options
690	set dlist {}
691	foreach dataobj $_dlist {
692	if { ![IsValidObject $dataobj] } {
693	continue
694	}
695	if {[info exists _obj2ovride($dataobj-raise)] &&
696	$_obj2ovride($dataobj-raise)} {
697	set dlist [linsert $dlist 0 $dataobj]
698	} else {
699	lappend dlist $dataobj
700	}
701	}
702	return $dlist
703	}
704	"-visible" {
705	set dlist {}
706	foreach dataobj $_dlist {
707	if { ![IsValidObject $dataobj] } {
708	continue
709	}
710	if { ![info exists _obj2ovride($dataobj-raise)] } {
711	# No setting indicates that the object isn't visible.
712	continue
713	}
714	# Otherwise use the -raise parameter to put the object to
715	# the front of the list.
716	if { $_obj2ovride($dataobj-raise) } {
717	set dlist [linsert $dlist 0 $dataobj]
718	} else {
719	lappend dlist $dataobj
720	}
721	}
722	return $dlist
723	}
724	-image {
725	if {[llength $args] != 2} {
726	error "wrong # args: should be \"get -image view\""
727	}
728	switch -- [lindex $args end] {
729	view {
730	return $_image(plot)
731	}
732	default {
733	error "bad image name \"[lindex $args end]\": should be view"
734	}
735	}
736	}
737	default {
738	error "bad option \"$op\": should be -objects or -image"
739	}
740	}
741	}
742
743	# ----------------------------------------------------------------------
744	# USAGE: scale ?<data1> <data2> ...?
745	#
746	# Sets the default limits for the overall plot according to the
747	# limits of the data for all of the given <data> objects. This
748	# accounts for all objects--even those not showing on the screen.
749	# Because of this, the limits are appropriate for all objects as
750	# the user scans through data in the ResultSet viewer.
751	# ----------------------------------------------------------------------
752	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
753	foreach dataobj $args {
754	if { ![$dataobj isvalid] } {
755	continue; # Object doesn't contain valid data.
756	}
757	foreach axis { x y z } {
758	set lim [$dataobj limits $axis]
759	if { ![info exists _limits($axis)] } {
760	set _limits($axis) $lim
761	continue
762	}
763	foreach {min max} $lim break
764	foreach {amin amax} $_limits($axis) break
765	if { $amin > $min } {
766	set amin $min
767	}
768	if { $amax < $max } {
769	set amax $max
770	}
771	set _limits($axis) [list $amin $amax]
772	}
773	foreach { fname lim } [$dataobj fieldlimits] {
774	if { ![info exists _limits($fname)] } {
775	set _limits($fname) $lim
776
777	# set reasonable defaults for
778	# customrangevmin and customrangevmax
779	foreach {min max} $lim break
780	SetMinMaxGauges $min $max
781	set _settings(-customrangemin) $min
782	set _settings(-customrangemax) $max
783
784	continue
785	}
786	foreach {min max} $lim break
787	foreach {fmin fmax} $_limits($fname) break
788	if { ! $_settings(-customrange) } {
789	SetMinMaxGauges $fmin $fmax
790	}
791	if { $fmin > $min } {
792	set fmin $min
793	}
794	if { $fmax < $max } {
795	set fmax $max
796	}
797	set _limits($fname) [list $fmin $fmax]
798	}
799	}
800	}
801
802	# ----------------------------------------------------------------------
803	# USAGE: download coming
804	# USAGE: download controls <downloadCommand>
805	# USAGE: download now
806	#
807	# Clients use this method to create a downloadable representation
808	# of the plot. Returns a list of the form {ext string}, where
809	# "ext" is the file extension (indicating the type of data) and
810	# "string" is the data itself.
811	# ----------------------------------------------------------------------
812	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
813	switch $option {
814	coming {
815	if {[catch {
816	blt::winop snap $itk_component(plotarea) $_image(download)
817	}]} {
818	$_image(download) configure -width 1 -height 1
819	$_image(download) put #000000
820	}
821	}
822	controls {
823	set popup .vtkviewerdownload
824	if { ![winfo exists .vtkviewerdownload] } {
825	set inner [BuildDownloadPopup $popup [lindex $args 0]]
826	} else {
827	set inner [$popup component inner]
828	}
829	set _downloadPopup(image_controls) $inner.image_frame
830	set num [llength [get]]
831	set num [expr {($num == 1) ? "1 result" : "$num results"}]
832	set word [Rappture::filexfer::label downloadWord]
833	$inner.summary configure -text "$word $num in the following format:"
834	update idletasks ;# Fix initial sizes
835	return $popup
836	}
837	now {
838	set popup .vtkviewerdownload
839	if {[winfo exists .vtkviewerdownload]} {
840	$popup deactivate
841	}
842	switch -- $_downloadPopup(format) {
843	"image" {
844	return [$this GetImage [lindex $args 0]]
845	}
846	"vtk" {
847	return [$this GetVtkData [lindex $args 0]]
848	}
849	}
850	return ""
851	}
852	default {
853	error "bad option \"$option\": should be coming, controls, now"
854	}
855	}
856	}
857
858	# ----------------------------------------------------------------------
859	# USAGE: Connect ?<host:port>,<host:port>...?
860	#
861	# Clients use this method to establish a connection to a new
862	# server, or to reestablish a connection to the previous server.
863	# Any existing connection is automatically closed.
864	# ----------------------------------------------------------------------
865	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
866	set _hosts [GetServerList "vtkvis"]
867	if { "" == $_hosts } {
868	return 0
869	}
870	set _reset 1
871	set result [VisViewer::Connect $_hosts]
872	if { $result } {
873	if { $_reportClientInfo } {
874	# Tell the server the viewer, hub, user and session.
875	# Do this immediately on connect before buffering any commands
876	global env
877
878	set info {}
879	set user "???"
880	if { [info exists env(USER)] } {
881	set user $env(USER)
882	}
883	set session "???"
884	if { [info exists env(SESSION)] } {
885	set session $env(SESSION)
886	}
887	lappend info "version" "$Rappture::version"
888	lappend info "build" "$Rappture::build"
889	lappend info "svnurl" "$Rappture::svnurl"
890	lappend info "installdir" "$Rappture::installdir"
891	lappend info "hub" [exec hostname]
892	lappend info "client" "vtkisosurfaceviewer"
893	lappend info "user" $user
894	lappend info "session" $session
895	SendCmd "clientinfo [list $info]"
896	}
897
898	set w [winfo width $itk_component(view)]
899	set h [winfo height $itk_component(view)]
900	EventuallyResize $w $h
901	}
902	return $result
903	}
904
905	#
906	# isconnected --
907	#
908	# Indicates if we are currently connected to the visualization server.
909	#
910	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
911	return [VisViewer::IsConnected]
912	}
913
914	#
915	# disconnect --
916	#
917	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
918	Disconnect
919	set _reset 1
920	}
921
922	#
923	# Disconnect --
924	#
925	# Clients use this method to disconnect from the current rendering server.
926	#
927	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
928	VisViewer::Disconnect
929
930	$_dispatcher cancel !rebuild
931	$_dispatcher cancel !resize
932	$_dispatcher cancel !rotate
933	$_dispatcher cancel !xcutplane
934	$_dispatcher cancel !ycutplane
935	$_dispatcher cancel !zcutplane
936	$_dispatcher cancel !legend
937	# disconnected -- no more data sitting on server
938	array unset _datasets
939	array unset _colormaps
940	}
941
942	# ----------------------------------------------------------------------
943	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
944	#
945	# Invoked automatically whenever the "image" command comes in from
946	# the rendering server. Indicates that binary image data with the
947	# specified <size> will follow.
948	# ----------------------------------------------------------------------
949	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
950	array set info {
951	-token "???"
952	-bytes 0
953	-type image
954	}
955	array set info $args
956	set bytes [ReceiveBytes $info(-bytes)]
957	if { $info(-type) == "image" } {
958	if 0 {
959	set f [open "last.ppm" "w"]
960	fconfigure $f -encoding binary
961	puts -nonewline $f $bytes
962	close $f
963	}
964	$_image(plot) configure -data $bytes
965	#set time [clock seconds]
966	#set date [clock format $time]
967	#set w [image width $_image(plot)]
968	#set h [image height $_image(plot)]
969	#puts stderr "$date: received image ${w}x${h} image"
970	if { $_start > 0 } {
971	set finish [clock clicks -milliseconds]
972	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
973	set _start 0
974	}
975	} elseif { $info(type) == "print" } {
976	set tag $this-print-$info(-token)
977	set _hardcopy($tag) $bytes
978	}
979	}
980
981	#
982	# ReceiveDataset --
983	#
984	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
985	if { ![isconnected] } {
986	return
987	}
988	set option [lindex $args 0]
989	switch -- $option {
990	"scalar" {
991	set option [lindex $args 1]
992	switch -- $option {
993	"world" {
994	foreach { x y z value tag } [lrange $args 2 end] break
995	}
996	"pixel" {
997	foreach { x y value tag } [lrange $args 2 end] break
998	}
999	}
1000	}
1001	"vector" {
1002	set option [lindex $args 1]
1003	switch -- $option {
1004	"world" {
1005	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
1006	}
1007	"pixel" {
1008	foreach { x y vx vy vz tag } [lrange $args 2 end] break
1009	}
1010	}
1011	}
1012	"names" {
1013	foreach { name } [lindex $args 1] {
1014	#puts stderr "Dataset: $name"
1015	}
1016	}
1017	default {
1018	error "unknown dataset option \"$option\" from server"
1019	}
1020	}
1021	}
1022
1023	# ----------------------------------------------------------------------
1024	# USAGE: Rebuild
1025	#
1026	# Called automatically whenever something changes that affects the
1027	# data in the widget. Clears any existing data and rebuilds the
1028	# widget to display new data.
1029	# ----------------------------------------------------------------------
1030	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
1031	set w [winfo width $itk_component(view)]
1032	set h [winfo height $itk_component(view)]
1033	if { $w < 2 \|\| $h < 2 } {
1034	update
1035	$_dispatcher event -idle !rebuild
1036	return
1037	}
1038
1039	# Turn on buffering of commands to the server. We don't want to
1040	# be preempted by a server disconnect/reconnect (which automatically
1041	# generates a new call to Rebuild).
1042	StartBufferingCommands
1043
1044	if { $_reset } {
1045	set _width $w
1046	set _height $h
1047	$_arcball resize $w $h
1048	DoResize
1049
1050	# Reset the camera and other view parameters
1051	$_arcball quaternion [ViewToQuaternion]
1052	InitSettings -ortho
1053	DoRotate
1054	PanCamera
1055	set _first ""
1056	InitSettings -background \
1057	-xgrid -ygrid -zgrid -axismode \
1058	-axesvisible -axislabels -axisminorticks
1059	#SendCmd "axis lformat all %g"
1060	StopBufferingCommands
1061	SendCmd "imgflush"
1062	StartBufferingCommands
1063	}
1064	set _first ""
1065	SendCmd "dataset visible 0"
1066	eval scale $_dlist
1067	foreach dataobj [get -objects] {
1068	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1069	set _first $dataobj
1070	SetCurrentFieldName $dataobj
1071	}
1072	foreach comp [$dataobj components] {
1073	set tag $dataobj-$comp
1074	if { ![info exists _datasets($tag)] } {
1075	set bytes [$dataobj vtkdata $comp]
1076	if 0 {
1077	set f [open "/tmp/isosurface.vtk" "w"]
1078	fconfigure $f -translation binary -encoding binary
1079	puts -nonewline $f $bytes
1080	close $f
1081	}
1082	set length [string length $bytes]
1083	if { $_reportClientInfo } {
1084	set info {}
1085	lappend info "tool_id" [$dataobj hints toolid]
1086	lappend info "tool_name" [$dataobj hints toolname]
1087	lappend info "tool_title" [$dataobj hints tooltitle]
1088	lappend info "tool_command" [$dataobj hints toolcommand]
1089	lappend info "tool_revision" [$dataobj hints toolrevision]
1090	lappend info "dataset_label" [$dataobj hints label]
1091	lappend info "dataset_size" $length
1092	lappend info "dataset_tag" $tag
1093	SendCmd "clientinfo [list $info]"
1094	}
1095	SendCmd "dataset add $tag data follows $length"
1096	SendData $bytes
1097	set _datasets($tag) 1
1098	SetObjectStyle $dataobj $comp
1099	}
1100	if { [info exists _obj2ovride($dataobj-raise)] } {
1101	SendCmd "contour3d visible 1 $tag"
1102	}
1103	}
1104	}
1105
1106	InitSettings -cutplanesvisible -isosurfacevisible -outline
1107	if { $_reset } {
1108	# These are settings that rely on a dataset being loaded.
1109	InitSettings \
1110	-field -range \
1111	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1112	-isosurfacewireframe \
1113	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1114	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1115	-cutplanepreinterp -numcontours
1116
1117	Zoom reset
1118	foreach axis { x y z } {
1119	set label ""
1120	if { $_first != "" } {
1121	set label [$_first hints ${axis}label]
1122	}
1123	if { $label == "" } {
1124	set label [string toupper $axis]
1125	}
1126	# There may be a space in the axis label.
1127	SendCmd [list axis name $axis $label]
1128	}
1129	if { [array size _fields] < 2 } {
1130	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1131	}
1132	set _reset 0
1133	}
1134	# Redraw the legend even if we're using the same colormap. The position
1135	# of the isolines may have changed because the range of data changed.
1136	DrawLegend
1137
1138	# Actually write the commands to the server socket. If it fails, we don't
1139	# care. We're finished here.
1140	blt::busy hold $itk_component(hull)
1141	StopBufferingCommands; # Turn off buffering and send commands.
1142	blt::busy release $itk_component(hull)
1143	}
1144
1145	# ----------------------------------------------------------------------
1146	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1147	#
1148	# Returns a list of server IDs for the current datasets being displayed. This
1149	# is normally a single ID, but it might be a list of IDs if the current data
1150	# object has multiple components.
1151	# ----------------------------------------------------------------------
1152	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1153	set flag [lindex $args 0]
1154	switch -- $flag {
1155	"-all" {
1156	if { [llength $args] > 1 } {
1157	error "CurrentDatasets: can't specify dataobj after \"-all\""
1158	}
1159	set dlist [get -objects]
1160	}
1161	"-visible" {
1162	if { [llength $args] > 1 } {
1163	set dlist {}
1164	set args [lrange $args 1 end]
1165	foreach dataobj $args {
1166	if { [info exists _obj2ovride($dataobj-raise)] } {
1167	lappend dlist $dataobj
1168	}
1169	}
1170	} else {
1171	set dlist [get -visible]
1172	}
1173	}
1174	default {
1175	set dlist $args
1176	}
1177	}
1178	set rlist ""
1179	foreach dataobj $dlist {
1180	foreach comp [$dataobj components] {
1181	set tag $dataobj-$comp
1182	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1183	lappend rlist $tag
1184	}
1185	}
1186	}
1187	return $rlist
1188	}
1189
1190	# ----------------------------------------------------------------------
1191	# USAGE: Zoom in
1192	# USAGE: Zoom out
1193	# USAGE: Zoom reset
1194	#
1195	# Called automatically when the user clicks on one of the zoom
1196	# controls for this widget. Changes the zoom for the current view.
1197	# ----------------------------------------------------------------------
1198	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1199	switch -- $option {
1200	"in" {
1201	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1202	SendCmd "camera zoom $_view(-zoom)"
1203	}
1204	"out" {
1205	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1206	SendCmd "camera zoom $_view(-zoom)"
1207	}
1208	"reset" {
1209	array set _view {
1210	-qw 0.853553
1211	-qx -0.353553
1212	-qy 0.353553
1213	-qz 0.146447
1214	-xpan 0
1215	-ypan 0
1216	-zoom 1.0
1217	}
1218	if { $_first != "" } {
1219	set location [$_first hints camera]
1220	if { $location != "" } {
1221	array set _view $location
1222	}
1223	}
1224	$_arcball quaternion [ViewToQuaternion]
1225	DoRotate
1226	SendCmd "camera reset"
1227	}
1228	}
1229	}
1230
1231	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1232	set x $_view(-xpan)
1233	set y $_view(-ypan)
1234	SendCmd "camera pan $x $y"
1235	}
1236
1237	# ----------------------------------------------------------------------
1238	# USAGE: Rotate click <x> <y>
1239	# USAGE: Rotate drag <x> <y>
1240	# USAGE: Rotate release <x> <y>
1241	#
1242	# Called automatically when the user clicks/drags/releases in the
1243	# plot area. Moves the plot according to the user's actions.
1244	# ----------------------------------------------------------------------
1245	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1246	switch -- $option {
1247	"click" {
1248	$itk_component(view) configure -cursor fleur
1249	set _click(x) $x
1250	set _click(y) $y
1251	}
1252	"drag" {
1253	if {[array size _click] == 0} {
1254	Rotate click $x $y
1255	} else {
1256	set w [winfo width $itk_component(view)]
1257	set h [winfo height $itk_component(view)]
1258	if {$w <= 0 \|\| $h <= 0} {
1259	return
1260	}
1261
1262	if {[catch {
1263	# this fails sometimes for no apparent reason
1264	set dx [expr {double($x-$_click(x))/$w}]
1265	set dy [expr {double($y-$_click(y))/$h}]
1266	}]} {
1267	return
1268	}
1269	if { $dx == 0 && $dy == 0 } {
1270	return
1271	}
1272	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1273	EventuallyRotate $q
1274	set _click(x) $x
1275	set _click(y) $y
1276	}
1277	}
1278	"release" {
1279	Rotate drag $x $y
1280	$itk_component(view) configure -cursor ""
1281	catch {unset _click}
1282	}
1283	default {
1284	error "bad option \"$option\": should be click, drag, release"
1285	}
1286	}
1287	}
1288
1289	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1290	foreach tag [CurrentDatasets -visible] {
1291	SendCmd "dataset getscalar pixel $x $y $tag"
1292	}
1293	}
1294
1295	# ----------------------------------------------------------------------
1296	# USAGE: $this Pan click x y
1297	# $this Pan drag x y
1298	# $this Pan release x y
1299	#
1300	# Called automatically when the user clicks on one of the zoom
1301	# controls for this widget. Changes the zoom for the current view.
1302	# ----------------------------------------------------------------------
1303	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1304	switch -- $option {
1305	"set" {
1306	set w [winfo width $itk_component(view)]
1307	set h [winfo height $itk_component(view)]
1308	set x [expr $x / double($w)]
1309	set y [expr $y / double($h)]
1310	set _view(-xpan) [expr $_view(-xpan) + $x]
1311	set _view(-ypan) [expr $_view(-ypan) + $y]
1312	PanCamera
1313	return
1314	}
1315	"click" {
1316	set _click(x) $x
1317	set _click(y) $y
1318	$itk_component(view) configure -cursor hand1
1319	}
1320	"drag" {
1321	if { ![info exists _click(x)] } {
1322	set _click(x) $x
1323	}
1324	if { ![info exists _click(y)] } {
1325	set _click(y) $y
1326	}
1327	set w [winfo width $itk_component(view)]
1328	set h [winfo height $itk_component(view)]
1329	set dx [expr ($_click(x) - $x)/double($w)]
1330	set dy [expr ($_click(y) - $y)/double($h)]
1331	set _click(x) $x
1332	set _click(y) $y
1333	set _view(-xpan) [expr $_view(-xpan) - $dx]
1334	set _view(-ypan) [expr $_view(-ypan) - $dy]
1335	PanCamera
1336	}
1337	"release" {
1338	Pan drag $x $y
1339	$itk_component(view) configure -cursor ""
1340	}
1341	default {
1342	error "unknown option \"$option\": should set, click, drag, or release"
1343	}
1344	}
1345	}
1346
1347	# ----------------------------------------------------------------------
1348	# USAGE: InitSettings <what> ?<value>?
1349	#
1350	# Used internally to update rendering settings whenever parameters
1351	# change in the popup settings panel. Sends the new settings off
1352	# to the back end.
1353	# ----------------------------------------------------------------------
1354	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1355	foreach spec $args {
1356	if { [info exists _settings($_first${spec})] } {
1357	# Reset global setting with dataobj specific setting
1358	set _settings($spec) $_settings($_first${spec})
1359	}
1360	AdjustSetting $spec
1361	}
1362	}
1363
1364	#
1365	# AdjustSetting --
1366	#
1367	# Changes/updates a specific setting in the widget. There are
1368	# usually user-setable option. Commands are sent to the render
1369	# server.
1370	#
1371	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1372	DebugTrace "Enter"
1373	if { ![isconnected] } {
1374	DebugTrace "Not connected"
1375	return
1376	}
1377	switch -- $what {
1378	"-axesvisible" {
1379	set bool $_settings($what)
1380	SendCmd "axis visible all $bool"
1381	}
1382	"-axislabels" {
1383	set bool $_settings($what)
1384	SendCmd "axis labels all $bool"
1385	}
1386	"-axisminorticks" {
1387	set bool $_settings($what)
1388	SendCmd "axis minticks all $bool"
1389	}
1390	"-axismode" {
1391	set mode [$itk_component(axisMode) value]
1392	set mode [$itk_component(axisMode) translate $mode]
1393	set _settings($what) $mode
1394	SendCmd "axis flymode $mode"
1395	}
1396	"-background" {
1397	set bgcolor [$itk_component(background) value]
1398	array set fgcolors {
1399	"black" "white"
1400	"white" "black"
1401	"grey" "black"
1402	}
1403	configure -plotbackground $bgcolor \
1404	-plotforeground $fgcolors($bgcolor)
1405	$itk_component(view) delete "legend"
1406	DrawLegend
1407	}
1408	"-colormap" {
1409	set _changed($what) 1
1410	StartBufferingCommands
1411	set color [$itk_component(colormap) value]
1412	set _settings($what) $color
1413	if { $color == "none" } {
1414	if { $_settings(-colormapvisible) } {
1415	SendCmd "contour3d colormode constant {}"
1416	set _settings(-colormapvisible) 0
1417	}
1418	} else {
1419	if { !$_settings(-colormapvisible) } {
1420	SendCmd "contour3d colormode $_colorMode $_curFldName"
1421	set _settings(-colormapvisible) 1
1422	}
1423	SetCurrentColormap $color
1424	}
1425	StopBufferingCommands
1426	EventuallyRequestLegend
1427	}
1428	"-cutplaneedges" {
1429	set _changed($what) 1
1430	set bool $_settings($what)
1431	SendCmd "cutplane edges $bool"
1432	}
1433	"-cutplanelighting" {
1434	set _changed($what) 1
1435	set bool $_settings($what)
1436	SendCmd "cutplane lighting $bool"
1437	}
1438	"-cutplaneopacity" {
1439	set _changed($what) 1
1440	set _settings($what) [expr $_widget($what) * 0.01]
1441	SendCmd "cutplane opacity $_settings($what)"
1442	}
1443	"-cutplanepreinterp" {
1444	set _changed($what) 1
1445	set bool $_settings($what)
1446	SendCmd "cutplane preinterp $bool"
1447	}
1448	"-cutplanesvisible" {
1449	set _changed($what) 1
1450	set bool $_settings($what)
1451	SendCmd "cutplane visible 0"
1452	if { $bool } {
1453	foreach tag [CurrentDatasets -visible] {
1454	SendCmd "cutplane visible $bool $tag"
1455	}
1456	}
1457	if { $bool } {
1458	Rappture::Tooltip::for $itk_component(cutplane) \
1459	"Hide the cutplanes"
1460	} else {
1461	Rappture::Tooltip::for $itk_component(cutplane) \
1462	"Show the cutplanes"
1463	}
1464	}
1465	"-cutplanewireframe" {
1466	set _changed($what) 1
1467	set bool $_settings($what)
1468	SendCmd "cutplane wireframe $bool"
1469	}
1470	"-field" {
1471	set label [$itk_component(field) value]
1472	set fname [$itk_component(field) translate $label]
1473	set _settings($what) $fname
1474	if { [info exists _fields($fname)] } {
1475	foreach { label units components } $_fields($fname) break
1476	if { $components > 1 } {
1477	set _colorMode vmag
1478	} else {
1479	set _colorMode scalar
1480	}
1481	set _curFldName $fname
1482	set _curFldLabel $label
1483	} else {
1484	puts stderr "unknown field \"$fname\""
1485	return
1486	}
1487	SendCmd "dataset scalar $_curFldName"
1488	if { ![info exists _limits($_curFldName)] } {
1489	SendCmd "dataset maprange all"
1490	} else {
1491	if { $_settings(-customrange) } {
1492	set vmin [$itk_component(min) value]
1493	set vmax [$itk_component(max) value]
1494	} else {
1495	foreach { vmin vmax } $_limits($_curFldName) break
1496	# set the min / max gauges with limits from the field
1497	# the legend's min and max text will be updated
1498	# when the legend is redrawn in DrawLegend
1499	SetMinMaxGauges $vmin $vmax
1500	}
1501	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1502	}
1503	SendCmd "cutplane colormode $_colorMode $_curFldName"
1504	SendCmd "contour3d colormode $_colorMode $_curFldName"
1505	GenerateContourList
1506	SendCmd [list contour3d contourlist $_contourList(values)]
1507	SendCmd "camera reset"
1508	DrawLegend
1509	}
1510	"-isolinecolor" {
1511	set color [$itk_component(isolineColor) value]
1512	set _settings($what) $color
1513	DrawLegend
1514	}
1515	"-isosurfaceedges" {
1516	set _changed($what) 1
1517	set bool $_settings($what)
1518	SendCmd "contour3d edges $bool"
1519	}
1520	"-isosurfacelighting" {
1521	set _changed($what) 1
1522	set bool $_settings($what)
1523	SendCmd "contour3d lighting $bool"
1524	}
1525	"-isosurfaceopacity" {
1526	set _changed($what) 1
1527	set _settings($what) [expr $_widget($what) * 0.01]
1528	SendCmd "contour3d opacity $_settings($what)"
1529	}
1530	"-isosurfacevisible" {
1531	set _changed($what) 1
1532	set bool $_settings($what)
1533	SendCmd "contour3d visible 0"
1534	if { $bool } {
1535	foreach tag [CurrentDatasets -visible] {
1536	SendCmd "contour3d visible $bool $tag"
1537	}
1538	Rappture::Tooltip::for $itk_component(contour) \
1539	"Hide the isosurface"
1540	} else {
1541	Rappture::Tooltip::for $itk_component(contour) \
1542	"Show the isosurface"
1543	}
1544	}
1545	"-isosurfacewireframe" {
1546	set _changed($what) 1
1547	set bool $_settings($what)
1548	SendCmd "contour3d wireframe $bool"
1549	}
1550	"-legendvisible" {
1551	if { !$_settings($what) } {
1552	$itk_component(view) delete legend
1553	}
1554	DrawLegend
1555	}
1556	"-numcontours" {
1557	set _changed($what) 1
1558	set _settings($what) [$itk_component(numcontours) value]
1559	if { $_contourList(numLevels) != $_settings($what) } {
1560	set _contourList(numLevels) $_settings($what)
1561	EventuallyChangeContourLevels
1562	}
1563	}
1564	"-ortho" {
1565	set bool $_view($what)
1566	if { $bool } {
1567	SendCmd "camera mode ortho"
1568	} else {
1569	SendCmd "camera mode persp"
1570	}
1571	}
1572	"-outline" {
1573	set _changed($what) 1
1574	set bool $_settings($what)
1575	SendCmd "outline visible 0"
1576	if { $bool } {
1577	foreach tag [CurrentDatasets -visible] {
1578	SendCmd "outline visible $bool $tag"
1579	}
1580	}
1581	}
1582	"-range" {
1583	if { $_settings(-customrange) } {
1584	set vmin [$itk_component(min) value]
1585	set vmax [$itk_component(max) value]
1586	} else {
1587	foreach { vmin vmax } $_limits($_curFldName) break
1588	}
1589	GenerateContourList
1590	SendCmd [list contour3d contourlist $_contourList(values)]
1591	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1592	DrawLegend
1593	}
1594	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1595	set _changed($what) 1
1596	set axis [string tolower [string range $what 1 1]]
1597	set bool $_settings($what)
1598	if { $bool } {
1599	$itk_component(${axis}position) configure -state normal \
1600	-troughcolor white
1601	} else {
1602	$itk_component(${axis}position) configure -state disabled \
1603	-troughcolor grey82
1604	}
1605	SendCmd "cutplane axis $axis $bool"
1606	}
1607	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1608	set _changed($what) 1
1609	set axis [string tolower [string range $what 1 1]]
1610	set pos [expr $_settings($what) * 0.01]
1611	SendCmd "cutplane slice ${axis} ${pos}"
1612	set _cutplanePending 0
1613	}
1614	"-xgrid" - "-ygrid" - "-zgrid" {
1615	set axis [string tolower [string range $what 1 1]]
1616	set bool $_settings($what)
1617	SendCmd "axis grid $axis $bool"
1618	}
1619	default {
1620	error "don't know how to fix $what"
1621	}
1622	}
1623	}
1624
1625	#
1626	# RequestLegend --
1627	#
1628	# Request a new legend from the server. The size of the legend
1629	# is determined from the height of the canvas.
1630	#
1631	# This should be called when
1632	# 1. A new current colormap is set.
1633	# 2. Window is resized.
1634	# 3. The limits of the data have changed. (Just need a redraw).
1635	# 4. Number of isolines have changed. (Just need a redraw).
1636	# 5. Legend becomes visible (Just need a redraw).
1637	#
1638	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1639	set _legendPending 0
1640	if { ![info exists _fields($_curFldName)] } {
1641	return
1642	}
1643	set fname $_curFldName
1644	set font "Arial 8"
1645	set lineht [font metrics $font -linespace]
1646	set w 12
1647	set h [expr {$_height - 2 * ($lineht + 2)}]
1648	if { $h < 1 } {
1649	return
1650	}
1651	if { [string match "component*" $fname] } {
1652	set title ""
1653	} else {
1654	if { [info exists _fields($fname)] } {
1655	foreach { title units } $_fields($fname) break
1656	if { $units != "" } {
1657	set title [format "%s (%s)" $title $units]
1658	}
1659	} else {
1660	set title $fname
1661	}
1662	}
1663	# If there's a title too, subtract one more line
1664	if { $title != "" } {
1665	incr h -$lineht
1666	}
1667	# Set the legend on the first dataset.
1668	if { $_currentColormap != "" } {
1669	set cmap $_currentColormap
1670	if { ![info exists _colormaps($cmap)] } {
1671	BuildColormap $cmap
1672	set _colormaps($cmap) 1
1673	}
1674	#SendCmd "legend $cmap $_colorMode $_curFldName {} $w $h 0"
1675	SendCmd "legend2 $cmap $w $h"
1676	}
1677	}
1678
1679	# ----------------------------------------------------------------------
1680	# CONFIGURATION OPTION: -plotbackground
1681	# ----------------------------------------------------------------------
1682	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1683	if { [isconnected] } {
1684	set rgb [Color2RGB $itk_option(-plotbackground)]
1685	SendCmd "screen bgcolor $rgb"
1686	}
1687	}
1688
1689	# ----------------------------------------------------------------------
1690	# CONFIGURATION OPTION: -plotforeground
1691	# ----------------------------------------------------------------------
1692	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1693	if { [isconnected] } {
1694	set rgb [Color2RGB $itk_option(-plotforeground)]
1695	SendCmd "axis color all $rgb"
1696	SendCmd "outline color $rgb"
1697	SendCmd "cutplane color $rgb"
1698	}
1699	}
1700
1701	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1702	set fg [option get $itk_component(hull) font Font]
1703	#set bfg [option get $itk_component(hull) boldFont Font]
1704
1705	set inner [$itk_component(main) insert end \
1706	-title "Isosurface Settings" \
1707	-icon [Rappture::icon volume-on]]
1708	$inner configure -borderwidth 4
1709
1710	checkbutton $inner.contour \
1711	-text "Isosurfaces" \
1712	-variable [itcl::scope _settings(-isosurfacevisible)] \
1713	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1714	-font "Arial 9"
1715
1716	checkbutton $inner.wireframe \
1717	-text "Wireframe" \
1718	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1719	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1720	-font "Arial 9"
1721
1722	checkbutton $inner.lighting \
1723	-text "Enable Lighting" \
1724	-variable [itcl::scope _settings(-isosurfacelighting)] \
1725	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1726	-font "Arial 9"
1727
1728	checkbutton $inner.edges \
1729	-text "Edges" \
1730	-variable [itcl::scope _settings(-isosurfaceedges)] \
1731	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1732	-font "Arial 9"
1733
1734	checkbutton $inner.outline \
1735	-text "Outline" \
1736	-variable [itcl::scope _settings(-outline)] \
1737	-command [itcl::code $this AdjustSetting -outline] \
1738	-font "Arial 9"
1739
1740	checkbutton $inner.legend \
1741	-text "Legend" \
1742	-variable [itcl::scope _settings(-legendvisible)] \
1743	-command [itcl::code $this AdjustSetting -legendvisible] \
1744	-font "Arial 9"
1745
1746	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1747	itk_component add isolineColor {
1748	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1749	}
1750	$inner.linecolor choices insert end \
1751	"black" "black" \
1752	"blue" "blue" \
1753	"cyan" "cyan" \
1754	"green" "green" \
1755	"grey" "grey" \
1756	"magenta" "magenta" \
1757	"orange" "orange" \
1758	"red" "red" \
1759	"white" "white" \
1760	"none" "none"
1761
1762	$itk_component(isolineColor) value "white"
1763	bind $inner.linecolor <<Value>> \
1764	[itcl::code $this AdjustSetting -isolinecolor]
1765
1766	label $inner.background_l -text "Background" -font "Arial 9"
1767	itk_component add background {
1768	Rappture::Combobox $inner.background -width 10 -editable 0
1769	}
1770	$inner.background choices insert end \
1771	"black" "black" \
1772	"white" "white" \
1773	"grey" "grey"
1774
1775	$itk_component(background) value $_settings(-background)
1776	bind $inner.background <<Value>> \
1777	[itcl::code $this AdjustSetting -background]
1778
1779	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1780	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1781	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1782	-width 10 \
1783	-showvalue off \
1784	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1785	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
1786
1787	itk_component add field_l {
1788	label $inner.field_l -text "Field" -font "Arial 9"
1789	} {
1790	ignore -font
1791	}
1792	itk_component add field {
1793	Rappture::Combobox $inner.field -width 10 -editable 0
1794	}
1795	bind $inner.field <<Value>> \
1796	[itcl::code $this AdjustSetting -field]
1797
1798	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1799	itk_component add colormap {
1800	Rappture::Combobox $inner.colormap -width 10 -editable 0
1801	}
1802	$inner.colormap choices insert end [GetColormapList]
1803	$itk_component(colormap) value "BCGYR"
1804	bind $inner.colormap <<Value>> \
1805	[itcl::code $this AdjustSetting -colormap]
1806
1807	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1808	itk_component add numcontours {
1809	Rappture::Spinint $inner.numcontours \
1810	-min 0 -max 50 -font "arial 9"
1811	}
1812	$itk_component(numcontours) value $_settings(-numcontours)
1813	bind $itk_component(numcontours) <<Value>> \
1814	[itcl::code $this AdjustSetting -numcontours]
1815
1816	# add widgets for setting a custom range on the legend
1817
1818	itk_component add crange {
1819	checkbutton $inner.crange \
1820	-text "Use Custom Range:" \
1821	-variable [itcl::scope _settings(-customrange)] \
1822	-command [itcl::code $this ToggleCustomRange] \
1823	-font "Arial 9"
1824	}
1825
1826	itk_component add l_min {
1827	label $inner.l_min -text "Min" -font "Arial 9"
1828	}
1829	itk_component add min {
1830	Rappture::Gauge $inner.min -font "Arial 9" \
1831	-validatecommand [itcl::code $this LegendRangeValidate "" vmin]
1832	}
1833	bind $itk_component(min) <<Value>> \
1834	[itcl::code $this AdjustSetting -range]
1835
1836	itk_component add l_max {
1837	label $inner.l_max -text "Max" -font "Arial 9"
1838	}
1839	itk_component add max {
1840	Rappture::Gauge $inner.max -font "Arial 9" \
1841	-validatecommand [itcl::code $this LegendRangeValidate "" vmax]
1842	}
1843	bind $itk_component(max) <<Value>> \
1844	[itcl::code $this AdjustSetting -range]
1845
1846	$itk_component(min) configure -state disabled
1847	$itk_component(max) configure -state disabled
1848
1849	blt::table $inner \
1850	0,0 $inner.field_l -anchor w -pady 2 \
1851	0,1 $inner.field -anchor w -pady 2 -fill x \
1852	1,0 $inner.colormap_l -anchor w -pady 2 \
1853	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1854	2,0 $inner.linecolor_l -anchor w -pady 2 \
1855	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1856	3,0 $inner.background_l -anchor w -pady 2 \
1857	3,1 $inner.background -anchor w -pady 2 -fill x \
1858	4,0 $inner.numcontours_l -anchor w -pady 2 \
1859	4,1 $inner.numcontours -anchor w -pady 2 \
1860	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1861	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1862	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1863	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1864	9,0 $inner.legend -anchor w -pady 2 \
1865	10,0 $inner.opacity_l -anchor w -pady 2 \
1866	10,1 $inner.opacity -fill x -pady 2 -fill x \
1867	11,0 $inner.crange -anchor w -pady 2 -cspan 2 \
1868	12,0 $inner.l_min -anchor w -pady 2 \
1869	12,1 $inner.min -anchor w -pady 2 -fill x \
1870	13,0 $inner.l_max -anchor w -pady 2 \
1871	13,1 $inner.max -anchor w -pady 2 -fill x \
1872
1873	blt::table configure $inner r* c* -resize none
1874	blt::table configure $inner r14 c1 -resize expand
1875	}
1876
1877	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1878
1879	set fg [option get $itk_component(hull) font Font]
1880	#set bfg [option get $itk_component(hull) boldFont Font]
1881
1882	set inner [$itk_component(main) insert end \
1883	-title "Axis Settings" \
1884	-icon [Rappture::icon axis2]]
1885	$inner configure -borderwidth 4
1886
1887	checkbutton $inner.visible \
1888	-text "Axes" \
1889	-variable [itcl::scope _settings(-axesvisible)] \
1890	-command [itcl::code $this AdjustSetting -axesvisible] \
1891	-font "Arial 9"
1892
1893	checkbutton $inner.labels \
1894	-text "Axis Labels" \
1895	-variable [itcl::scope _settings(-axislabels)] \
1896	-command [itcl::code $this AdjustSetting -axislabels] \
1897	-font "Arial 9"
1898	label $inner.grid_l -text "Grid" -font "Arial 9"
1899	checkbutton $inner.xgrid \
1900	-text "X" \
1901	-variable [itcl::scope _settings(-xgrid)] \
1902	-command [itcl::code $this AdjustSetting -xgrid] \
1903	-font "Arial 9"
1904	checkbutton $inner.ygrid \
1905	-text "Y" \
1906	-variable [itcl::scope _settings(-ygrid)] \
1907	-command [itcl::code $this AdjustSetting -ygrid] \
1908	-font "Arial 9"
1909	checkbutton $inner.zgrid \
1910	-text "Z" \
1911	-variable [itcl::scope _settings(-zgrid)] \
1912	-command [itcl::code $this AdjustSetting -zgrid] \
1913	-font "Arial 9"
1914	checkbutton $inner.minorticks \
1915	-text "Minor Ticks" \
1916	-variable [itcl::scope _settings(-axisminorticks)] \
1917	-command [itcl::code $this AdjustSetting -axisminorticks] \
1918	-font "Arial 9"
1919
1920	label $inner.mode_l -text "Mode" -font "Arial 9"
1921
1922	itk_component add axisMode {
1923	Rappture::Combobox $inner.mode -width 10 -editable 0
1924	}
1925	$inner.mode choices insert end \
1926	"static_triad" "static" \
1927	"closest_triad" "closest" \
1928	"furthest_triad" "farthest" \
1929	"outer_edges" "outer"
1930	$itk_component(axisMode) value $_settings(-axismode)
1931	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1932
1933	blt::table $inner \
1934	0,0 $inner.visible -anchor w -cspan 4 \
1935	1,0 $inner.labels -anchor w -cspan 4 \
1936	2,0 $inner.minorticks -anchor w -cspan 4 \
1937	4,0 $inner.grid_l -anchor w \
1938	4,1 $inner.xgrid -anchor w \
1939	4,2 $inner.ygrid -anchor w \
1940	4,3 $inner.zgrid -anchor w \
1941	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1942	5,1 $inner.mode -fill x -cspan 3
1943
1944	blt::table configure $inner r* c* -resize none
1945	blt::table configure $inner r7 c6 -resize expand
1946	blt::table configure $inner r3 -height 0.125i
1947	}
1948
1949
1950	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1951	set inner [$itk_component(main) insert end \
1952	-title "Camera Settings" \
1953	-icon [Rappture::icon camera]]
1954	$inner configure -borderwidth 4
1955
1956	label $inner.view_l -text "view" -font "Arial 9"
1957	set f [frame $inner.view]
1958	foreach side { front back left right top bottom } {
1959	button $f.$side -image [Rappture::icon view$side] \
1960	-command [itcl::code $this SetOrientation $side]
1961	Rappture::Tooltip::for $f.$side "Change the view to $side"
1962	pack $f.$side -side left
1963	}
1964
1965	blt::table $inner \
1966	0,0 $inner.view_l -anchor e -pady 2 \
1967	0,1 $inner.view -anchor w -pady 2
1968	blt::table configure $inner r0 -resize none
1969
1970	set labels { qx qy qz qw xpan ypan zoom }
1971	set row 1
1972	foreach tag $labels {
1973	label $inner.${tag}label -text $tag -font "Arial 9"
1974	entry $inner.${tag} -font "Arial 9" -bg white \
1975	-textvariable [itcl::scope _view(-$tag)]
1976	bind $inner.${tag} <Return> \
1977	[itcl::code $this camera set -${tag}]
1978	bind $inner.${tag} <KP_Enter> \
1979	[itcl::code $this camera set -${tag}]
1980	blt::table $inner \
1981	$row,0 $inner.${tag}label -anchor e -pady 2 \
1982	$row,1 $inner.${tag} -anchor w -pady 2
1983	blt::table configure $inner r$row -resize none
1984	incr row
1985	}
1986	checkbutton $inner.ortho \
1987	-text "Orthographic Projection" \
1988	-variable [itcl::scope _view(-ortho)] \
1989	-command [itcl::code $this AdjustSetting -ortho] \
1990	-font "Arial 9"
1991	blt::table $inner \
1992	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1993	blt::table configure $inner r$row -resize none
1994	incr row
1995
1996	blt::table configure $inner c* -resize none
1997	blt::table configure $inner c2 -resize expand
1998	blt::table configure $inner r$row -resize expand
1999	}
2000
2001	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplanesTab {} {
2002
2003	set fg [option get $itk_component(hull) font Font]
2004
2005	set inner [$itk_component(main) insert end \
2006	-title "Cutplane Settings" \
2007	-icon [Rappture::icon cutbutton]]
2008
2009	$inner configure -borderwidth 4
2010
2011	checkbutton $inner.visible \
2012	-text "Cutplanes" \
2013	-variable [itcl::scope _settings(-cutplanesvisible)] \
2014	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2015	-font "Arial 9"
2016
2017	checkbutton $inner.wireframe \
2018	-text "Wireframe" \
2019	-variable [itcl::scope _settings(-cutplanewireframe)] \
2020	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
2021	-font "Arial 9"
2022
2023	checkbutton $inner.lighting \
2024	-text "Enable Lighting" \
2025	-variable [itcl::scope _settings(-cutplanelighting)] \
2026	-command [itcl::code $this AdjustSetting -cutplanelighting] \
2027	-font "Arial 9"
2028
2029	checkbutton $inner.edges \
2030	-text "Edges" \
2031	-variable [itcl::scope _settings(-cutplaneedges)] \
2032	-command [itcl::code $this AdjustSetting -cutplaneedges] \
2033	-font "Arial 9"
2034
2035	checkbutton $inner.preinterp \
2036	-text "Interpolate Scalars" \
2037	-variable [itcl::scope _settings(-cutplanepreinterp)] \
2038	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
2039	-font "Arial 9"
2040
2041	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2042	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2043	-variable [itcl::scope _widget(-cutplaneopacity)] \
2044	-width 10 \
2045	-showvalue off \
2046	-command [itcl::code $this AdjustSetting -cutplaneopacity]
2047	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
2048
2049	# X-value slicer...
2050	itk_component add xbutton {
2051	Rappture::PushButton $inner.xbutton \
2052	-onimage [Rappture::icon x-cutplane-red] \
2053	-offimage [Rappture::icon x-cutplane-red] \
2054	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2055	-variable [itcl::scope _settings(-xcutplanevisible)] \
2056	}
2057	Rappture::Tooltip::for $itk_component(xbutton) \
2058	"Toggle the X-axis cutplane on/off"
2059	$itk_component(xbutton) select
2060	itk_component add xposition {
2061	::scale $inner.xval -from 100 -to 0 \
2062	-width 10 -orient vertical -showvalue 1 \
2063	-borderwidth 1 -highlightthickness 0 \
2064	-command [itcl::code $this EventuallySetCutplane x] \
2065	-variable [itcl::scope _settings(-xcutplaneposition)] \
2066	-foreground red2 -font "Arial 9 bold"
2067	} {
2068	usual
2069	ignore -borderwidth -highlightthickness -foreground -font -background
2070	}
2071	# Set the default cutplane value before disabling the scale.
2072	$itk_component(xposition) set 50
2073	$itk_component(xposition) configure -state disabled
2074	Rappture::Tooltip::for $itk_component(xposition) \
2075	"@[itcl::code $this Slice tooltip x]"
2076
2077	# Y-value slicer...
2078	itk_component add ybutton {
2079	Rappture::PushButton $inner.ybutton \
2080	-onimage [Rappture::icon y-cutplane-green] \
2081	-offimage [Rappture::icon y-cutplane-green] \
2082	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2083	-variable [itcl::scope _settings(-ycutplanevisible)] \
2084	}
2085	Rappture::Tooltip::for $itk_component(ybutton) \
2086	"Toggle the Y-axis cutplane on/off"
2087	$itk_component(ybutton) select
2088
2089	itk_component add yposition {
2090	::scale $inner.yval -from 100 -to 0 \
2091	-width 10 -orient vertical -showvalue 1 \
2092	-borderwidth 1 -highlightthickness 0 \
2093	-command [itcl::code $this EventuallySetCutplane y] \
2094	-variable [itcl::scope _settings(-ycutplaneposition)] \
2095	-foreground green3 -font "Arial 9 bold"
2096	} {
2097	usual
2098	ignore -borderwidth -highlightthickness -foreground -font
2099	}
2100	Rappture::Tooltip::for $itk_component(yposition) \
2101	"@[itcl::code $this Slice tooltip y]"
2102	# Set the default cutplane value before disabling the scale.
2103	$itk_component(yposition) set 50
2104	$itk_component(yposition) configure -state disabled
2105
2106	# Z-value slicer...
2107	itk_component add zbutton {
2108	Rappture::PushButton $inner.zbutton \
2109	-onimage [Rappture::icon z-cutplane-blue] \
2110	-offimage [Rappture::icon z-cutplane-blue] \
2111	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2112	-variable [itcl::scope _settings(-zcutplanevisible)] \
2113	} {
2114	usual
2115	ignore -foreground
2116	}
2117	Rappture::Tooltip::for $itk_component(zbutton) \
2118	"Toggle the Z-axis cutplane on/off"
2119	$itk_component(zbutton) select
2120
2121	itk_component add zposition {
2122	::scale $inner.zval -from 100 -to 0 \
2123	-width 10 -orient vertical -showvalue 1 \
2124	-borderwidth 1 -highlightthickness 0 \
2125	-command [itcl::code $this EventuallySetCutplane z] \
2126	-variable [itcl::scope _settings(-zcutplaneposition)] \
2127	-foreground blue3 -font "Arial 9 bold"
2128	} {
2129	usual
2130	ignore -borderwidth -highlightthickness -foreground -font
2131	}
2132	$itk_component(zposition) set 50
2133	$itk_component(zposition) configure -state disabled
2134	Rappture::Tooltip::for $itk_component(zposition) \
2135	"@[itcl::code $this Slice tooltip z]"
2136
2137	blt::table $inner \
2138	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2139	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2140	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2141	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2142	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2143	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2144	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2145	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2146	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2147	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2148	6,1 $inner.xval -fill y -rspan 4 \
2149	6,2 $inner.yval -fill y -rspan 4 \
2150	6,3 $inner.zval -fill y -rspan 4 \
2151
2152	blt::table configure $inner r* c* -resize none
2153	blt::table configure $inner r9 c4 -resize expand
2154	}
2155
2156	#
2157	# camera --
2158	#
2159	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2160	switch -- $option {
2161	"show" {
2162	puts [array get _view]
2163	}
2164	"set" {
2165	set what [lindex $args 0]
2166	set x $_view($what)
2167	set code [catch { string is double $x } result]
2168	if { $code != 0 \|\| !$result } {
2169	return
2170	}
2171	switch -- $what {
2172	"-ortho" {
2173	if {$_view($what)} {
2174	SendCmd "camera mode ortho"
2175	} else {
2176	SendCmd "camera mode persp"
2177	}
2178	}
2179	"-xpan" - "-ypan" {
2180	PanCamera
2181	}
2182	"-qx" - "-qy" - "-qz" - "-qw" {
2183	set q [ViewToQuaternion]
2184	$_arcball quaternion $q
2185	EventuallyRotate $q
2186	}
2187	"-zoom" {
2188	SendCmd "camera zoom $_view($what)"
2189	}
2190	}
2191	}
2192	}
2193	}
2194
2195	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2196	set bytes ""
2197	foreach dataobj [get] {
2198	foreach cname [$dataobj components] {
2199	set tag $dataobj-$cname
2200	set contents [$dataobj vtkdata $cname]
2201	append bytes "$contents\n"
2202	}
2203	}
2204	return [list .vtk $bytes]
2205	}
2206
2207	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2208	if { [image width $_image(download)] > 0 &&
2209	[image height $_image(download)] > 0 } {
2210	set bytes [$_image(download) data -format "jpeg -quality 100"]
2211	set bytes [Rappture::encoding::decode -as b64 $bytes]
2212	return [list .jpg $bytes]
2213	}
2214	return ""
2215	}
2216
2217	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2218	Rappture::Balloon $popup \
2219	-title "[Rappture::filexfer::label downloadWord] as..."
2220	set inner [$popup component inner]
2221	label $inner.summary -text "" -anchor w
2222	radiobutton $inner.vtk_button -text "VTK data file" \
2223	-variable [itcl::scope _downloadPopup(format)] \
2224	-font "Arial 9 " \
2225	-value vtk
2226	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2227	radiobutton $inner.image_button -text "Image File" \
2228	-variable [itcl::scope _downloadPopup(format)] \
2229	-font "Arial 9 " \
2230	-value image
2231	Rappture::Tooltip::for $inner.image_button \
2232	"Save as digital image."
2233
2234	button $inner.ok -text "Save" \
2235	-highlightthickness 0 -pady 2 -padx 3 \
2236	-command $command \
2237	-compound left \
2238	-image [Rappture::icon download]
2239
2240	button $inner.cancel -text "Cancel" \
2241	-highlightthickness 0 -pady 2 -padx 3 \
2242	-command [list $popup deactivate] \
2243	-compound left \
2244	-image [Rappture::icon cancel]
2245
2246	blt::table $inner \
2247	0,0 $inner.summary -cspan 2 \
2248	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2249	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2250	4,1 $inner.cancel -width .9i -fill y \
2251	4,0 $inner.ok -padx 2 -width .9i -fill y
2252	blt::table configure $inner r3 -height 4
2253	blt::table configure $inner r4 -pady 4
2254	raise $inner.image_button
2255	$inner.vtk_button invoke
2256	return $inner
2257	}
2258
2259	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2260	DebugTrace "Enter"
2261	# Parse style string.
2262	set tag $dataobj-$comp
2263	array set style {
2264	-color BCGYR
2265	-cutplaneedges 0
2266	-cutplanelighting 1
2267	-cutplaneopacity 1.0
2268	-cutplanepreinterp 1
2269	-cutplanesvisible 0
2270	-cutplanewireframe 0
2271	-edgecolor black
2272	-edges 0
2273	-isosurfacevisible 1
2274	-levels 10
2275	-lighting 1
2276	-linewidth 1.0
2277	-opacity 0.6
2278	-outline 0
2279	-wireframe 0
2280	-xcutplaneposition 50
2281	-xcutplanevisible 1
2282	-ycutplaneposition 50
2283	-ycutplanevisible 1
2284	-zcutplaneposition 50
2285	-zcutplanevisible 1
2286	}
2287	if { $style(-levels) == 1 } {
2288	set style(-opacity) 1.0
2289	}
2290	array set style [$dataobj style $comp]
2291	#DebugTrace [array get style]
2292
2293	# This is too complicated. We want to set the colormap, number of
2294	# isolines and opacity for the dataset. They can be the default values,
2295	# the style hints loaded with the dataset, or set by user controls. As
2296	# datasets get loaded, they first use the defaults that are overidden
2297	# by the style hints. If the user changes the global controls, then that
2298	# overrides everything else. I don't know what it means when global
2299	# controls are specified as style hints by each dataset. It complicates
2300	# the code to handle aberrant cases.
2301
2302	if { $_changed(-isosurfaceedges) } {
2303	set style(-edges) $_settings(-isosurfaceedges)
2304	}
2305	if { $_changed(-isosurfacelighting) } {
2306	set style(-lighting) $_settings(-isosurfacelighting)
2307	}
2308	if { $_changed(-isosurfaceopacity) } {
2309	set style(-opacity) $_settings(-isosurfaceopacity)
2310	}
2311	if { $_changed(-isosurfacewireframe) } {
2312	set style(-wireframe) $_settings(-isosurfacewireframe)
2313	}
2314	if { $_changed(-numcontours) } {
2315	set style(-levels) $_settings(-numcontours)
2316	}
2317	if { $_changed(-colormap) } {
2318	set style(-color) $_settings(-colormap)
2319	}
2320	if { $_currentColormap == "" } {
2321	SetCurrentColormap $style(-color)
2322	$itk_component(colormap) value $style(-color)
2323	}
2324	if { $_contourList(numLevels) != $style(-levels) } {
2325	if { [llength $style(-levels)] > 1 } {
2326	set _contourList(reqValues) [lsort -real $style(-levels)]
2327	} else {
2328	set _settings(-numcontours) $style(-levels)
2329	$itk_component(numcontours) value $style(-levels)
2330	set _contourList(numLevels) $style(-levels)
2331	}
2332	EventuallyChangeContourLevels
2333	}
2334	foreach setting {-outline -isosurfacevisible -cutplanesvisible \
2335	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
2336	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
2337	-cutplaneedges -cutplanelighting -cutplaneopacity \
2338	-cutplanepreinterp -cutplanewireframe} {
2339	if {$_changed($setting)} {
2340	# User-modified UI setting overrides style
2341	set style($setting) $_settings($setting)
2342	} else {
2343	# Set UI control to style setting (tool provided or default)
2344	set _settings($setting) $style($setting)
2345	}
2346	}
2347
2348	SendCmd "cutplane add $tag"
2349	SendCmd "cutplane color [Color2RGB $itk_option(-plotforeground)] $tag"
2350	foreach axis {x y z} {
2351	set pos [expr $style(-${axis}cutplaneposition) * 0.01]
2352	set visible $style(-${axis}cutplanevisible)
2353	SendCmd "cutplane slice $axis $pos $tag"
2354	SendCmd "cutplane axis $axis $visible $tag"
2355	}
2356	SendCmd "cutplane edges $style(-cutplaneedges) $tag"
2357	SendCmd "cutplane lighting $style(-cutplanelighting) $tag"
2358	SendCmd "cutplane opacity $style(-cutplaneopacity) $tag"
2359	set _widget(-cutplaneopacity) [expr $style(-cutplaneopacity) * 100]
2360	SendCmd "cutplane preinterp $style(-cutplanepreinterp) $tag"
2361	SendCmd "cutplane wireframe $style(-cutplanewireframe) $tag"
2362	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2363
2364	SendCmd "outline add $tag"
2365	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2366	SendCmd "outline visible $style(-outline) $tag"
2367
2368	GenerateContourList
2369	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2370	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2371	SendCmd "contour3d edges $style(-edges) $tag"
2372	set _settings(-isosurfaceedges) $style(-edges)
2373	#SendCmd "contour3d color [Color2RGB $style(-color)] $tag"
2374	SendCmd "contour3d lighting $style(-lighting) $tag"
2375	set _settings(-isosurfacelighting) $style(-lighting)
2376	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2377	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2378	SendCmd "contour3d opacity $style(-opacity) $tag"
2379	set _settings(-isosurfaceopacity) $style(-opacity)
2380	set _widget(-isosurfaceopacity) [expr $style(-opacity) * 100]
2381	SetCurrentColormap $style(-color)
2382	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2383	set _settings(-isosurfacewireframe) $style(-wireframe)
2384	}
2385
2386	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2387	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2388	return 0
2389	}
2390	return 1
2391	}
2392
2393	#
2394	# EnterLegend --
2395	#
2396	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2397	SetLegendTip $x $y
2398	}
2399
2400	#
2401	# MotionLegend --
2402	#
2403	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2404	Rappture::Tooltip::tooltip cancel
2405	set c $itk_component(view)
2406	set cw [winfo width $c]
2407	set ch [winfo height $c]
2408	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2409	SetLegendTip $x $y
2410	}
2411	}
2412
2413	#
2414	# LeaveLegend --
2415	#
2416	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2417	Rappture::Tooltip::tooltip cancel
2418	.rappturetooltip configure -icon ""
2419	}
2420
2421	# ----------------------------------------------------------------------
2422	# USAGE: LegendB1Motion press <x> <y>
2423	# USAGE: LegendB1Motion motion <x> <y>
2424	# USAGE: LegendB1Motion release <x> <y>
2425	#
2426	# Manage actions for Button 1 presses that happen over the legend.
2427	# Pressing mouse Button 1 on the legend sends a command to the
2428	# visualization server to show a specific isosurface.
2429	# ----------------------------------------------------------------------
2430	itcl::body Rappture::VtkIsosurfaceViewer::LegendB1Motion { status x y } {
2431
2432	switch -- $status {
2433	"press" {
2434	DisableMouseRotationBindings
2435	LegendProbeSingleContour $x $y
2436	}
2437	"motion" {
2438	DisableMouseRotationBindings
2439	LegendProbeSingleContour $x $y
2440	}
2441	"release" {
2442	AdjustSetting -range
2443	SetupMouseRotationBindings
2444	}
2445	default {
2446	error "bad option \"$option\": should be one of press, motion, release."
2447	}
2448	}
2449	}
2450
2451	# ----------------------------------------------------------------------
2452	# USAGE: LegendPointToValue <x> <y>
2453	#
2454	# Convert an x,y point on the legend to a numeric field value.
2455	# ----------------------------------------------------------------------
2456	itcl::body Rappture::VtkIsosurfaceViewer::LegendPointToValue { x y } {
2457	set fname $_curFldName
2458
2459	set font "Arial 8"
2460	set lineht [font metrics $font -linespace]
2461
2462	set ih [image height $_image(legend)]
2463	set iy [expr $y - ($lineht + 2)]
2464
2465	# Compute the value of the point
2466	if { [info exists _limits($fname)] } {
2467	if { $_settings(-customrange) } {
2468	set vmin [$itk_component(min) value]
2469	set vmax [$itk_component(max) value]
2470	} else {
2471	foreach { vmin vmax } $_limits($fname) break
2472	}
2473	set t [expr 1.0 - (double($iy) / double($ih-1))]
2474	set value [expr $t * ($vmax - $vmin) + $vmin]
2475	} else {
2476	set value 0.0
2477	}
2478	return $value
2479	}
2480
2481	# ----------------------------------------------------------------------
2482	# USAGE: LegendProbeSingleContour <x> <y>
2483	#
2484	# Calculate the isosurface value for the x,y point and send a commands
2485	# to the visualization server to show that isosurface.
2486	# ----------------------------------------------------------------------
2487	itcl::body Rappture::VtkIsosurfaceViewer::LegendProbeSingleContour { x y } {
2488
2489	set value [LegendPointToValue $x $y]
2490	SendCmd [list contour3d contourlist $value]
2491	}
2492
2493	#
2494	# SetLegendTip --
2495	#
2496	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2497	set fname $_curFldName
2498	set c $itk_component(view)
2499	set w [winfo width $c]
2500	set h [winfo height $c]
2501
2502	set font "Arial 8"
2503	set lineht [font metrics $font -linespace]
2504
2505	set ih [image height $_image(legend)]
2506	set iy [expr $y - ($lineht + 2)]
2507
2508	if { [string match "component*" $fname] } {
2509	set title ""
2510	} else {
2511	if { [info exists _fields($fname)] } {
2512	foreach { title units } $_fields($fname) break
2513	if { $units != "" } {
2514	set title [format "%s (%s)" $title $units]
2515	}
2516	} else {
2517	set title $fname
2518	}
2519	}
2520	# If there's a legend title, increase the offset by the line height.
2521	if { $title != "" } {
2522	incr iy -$lineht
2523	}
2524	# Make a swatch of the selected color
2525	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2526	return
2527	}
2528	if { ![info exists _image(swatch)] } {
2529	set _image(swatch) [image create photo -width 24 -height 24]
2530	}
2531	set color [eval format "\#%02x%02x%02x" $pixel]
2532	$_image(swatch) put black -to 0 0 23 23
2533	$_image(swatch) put $color -to 1 1 22 22
2534	.rappturetooltip configure -icon $_image(swatch)
2535
2536	# Compute the value of the point
2537	set value [LegendPointToValue $x $y]
2538
2539	# Setup the location of the tooltip
2540	set tx [expr $x + 15]
2541	set ty [expr $y - 5]
2542
2543	# Setup the text for the tooltip
2544	if { [info exists _isolines($y)] } {
2545	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2546	} else {
2547	Rappture::Tooltip::text $c [format "$title %g" $value]
2548	}
2549
2550	# Show the tooltip
2551	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2552	}
2553
2554	# ----------------------------------------------------------------------
2555	# USAGE: Slice move x\|y\|z <newval>
2556	#
2557	# Called automatically when the user drags the slider to move the
2558	# cut plane that slices 3D data. Gets the current value from the
2559	# slider and moves the cut plane to the appropriate point in the
2560	# data set.
2561	# ----------------------------------------------------------------------
2562	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2563	switch -- $option {
2564	"move" {
2565	set axis [lindex $args 0]
2566	set newval [lindex $args 1]
2567	if {[llength $args] != 2} {
2568	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2569	}
2570	set newpos [expr {0.01*$newval}]
2571	SendCmd "cutplane slice $axis $newpos"
2572	}
2573	"tooltip" {
2574	set axis [lindex $args 0]
2575	set val [$itk_component(${axis}position) get]
2576	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2577	}
2578	default {
2579	error "bad option \"$option\": should be axis, move, or tooltip"
2580	}
2581	}
2582	}
2583
2584	#
2585	# ReceiveLegend --
2586	#
2587	# Invoked automatically whenever the "legend" command comes in from
2588	# the rendering server. Indicates that binary image data with the
2589	# specified <size> will follow.
2590	#
2591	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2592	DebugTrace "Enter"
2593	set _title $title
2594	regsub {\(mag\)} $title "" _title
2595	if { [IsConnected] } {
2596	set bytes [ReceiveBytes $size]
2597	if { ![info exists _image(legend)] } {
2598	set _image(legend) [image create photo]
2599	}
2600	$_image(legend) configure -data $bytes
2601	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2602	if { [catch {DrawLegend} errs] != 0 } {
2603	global errorInfo
2604	puts stderr "errs=$errs errorInfo=$errorInfo"
2605	}
2606	}
2607	}
2608
2609	#
2610	# DrawLegend --
2611	#
2612	# Draws the legend on the canvas on the right side of the plot area.
2613	#
2614	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2615	set fname $_curFldName
2616	set c $itk_component(view)
2617	set w [winfo width $c]
2618	set h [winfo height $c]
2619	set font "Arial 8"
2620	set lineht [font metrics $font -linespace]
2621
2622	if { [string match "component*" $fname] } {
2623	set title ""
2624	} else {
2625	if { [info exists _fields($fname)] } {
2626	foreach { title units } $_fields($fname) break
2627	if { $units != "" } {
2628	set title [format "%s (%s)" $title $units]
2629	}
2630	} else {
2631	set title $fname
2632	}
2633	}
2634	set x [expr $w - 2]
2635	if { !$_settings(-legendvisible) } {
2636	$c delete legend
2637	return
2638	}
2639	if { [$c find withtag "legend"] == "" } {
2640	set y 2
2641	# If there's a legend title, create a text item for the title.
2642	$c create text $x $y \
2643	-anchor ne \
2644	-fill $itk_option(-plotforeground) -tags "title legend" \
2645	-font $font
2646	if { $title != "" } {
2647	incr y $lineht
2648	}
2649	$c create text $x $y \
2650	-anchor ne \
2651	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2652	-font $font
2653	incr y $lineht
2654	$c create image $x $y \
2655	-anchor ne \
2656	-image $_image(legend) -tags "colormap legend"
2657	$c create rectangle $x $y 1 1 \
2658	-fill "" -outline "" -tags "sensor legend"
2659	$c create text $x [expr {$h-2}] \
2660	-anchor se \
2661	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2662	-font $font
2663	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2664	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2665	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2666	# $c bind sensor <ButtonPress-1> [itcl::code $this LegendB1Motion press %x %y]
2667	# $c bind sensor <B1-Motion> [itcl::code $this LegendB1Motion motion %x %y]
2668	# $c bind sensor <ButtonRelease-1> [itcl::code $this LegendB1Motion release %x %y]
2669	}
2670	$c delete isoline
2671	set x2 $x
2672	set iw [image width $_image(legend)]
2673	set ih [image height $_image(legend)]
2674	set x1 [expr $x2 - ($iw*12)/10]
2675	set color $_settings(-isolinecolor)
2676	# Draw the isolines on the legend.
2677	array unset _isolines
2678	if { $color != "none" && [info exists _limits($_curFldName)] &&
2679	$_settings(-numcontours) > 0 } {
2680
2681	if { $_settings(-customrange) } {
2682	set vmin [$itk_component(min) value]
2683	set vmax [$itk_component(max) value]
2684	} else {
2685	foreach { vmin vmax } $_limits($_curFldName) break
2686	}
2687	set range [expr double($vmax - $vmin)]
2688	if { $range <= 0.0 } {
2689	set range 1.0; # Min is greater or equal to max.
2690	}
2691	set tags "isoline legend"
2692	set offset [expr 2 + $lineht]
2693	if { $title != "" } {
2694	incr offset $lineht
2695	}
2696	foreach value $_contourList(values) {
2697	set norm [expr 1.0 - (($value - $vmin) / $range)]
2698	set y1 [expr int(round(($norm * $ih) + $offset))]
2699	for { set off 0 } { $off < 3 } { incr off } {
2700	set _isolines([expr $y1 + $off]) $value
2701	set _isolines([expr $y1 - $off]) $value
2702	}
2703	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2704	}
2705	}
2706
2707	$c bind title <ButtonPress> [itcl::code $this LegendTitleAction post]
2708	$c bind title <Enter> [itcl::code $this LegendTitleAction enter]
2709	$c bind title <Leave> [itcl::code $this LegendTitleAction leave]
2710	# Reset the item coordinates according the current size of the plot.
2711	$c itemconfigure title -text $title
2712	if { [info exists _limits($_curFldName)] } {
2713	if { $_settings(-customrange) } {
2714	set vmin [$itk_component(min) value]
2715	set vmax [$itk_component(max) value]
2716	} else {
2717	foreach { vmin vmax } $_limits($_curFldName) break
2718	}
2719	$c itemconfigure vmin -text [format %g $vmin]
2720	$c itemconfigure vmax -text [format %g $vmax]
2721	}
2722	set y 2
2723	# If there's a legend title, move the title to the correct position
2724	if { $title != "" } {
2725	$c itemconfigure title -text $title
2726	$c coords title $x $y
2727	incr y $lineht
2728	$c raise title
2729	}
2730	$c coords vmax $x $y
2731	incr y $lineht
2732	$c coords colormap $x $y
2733	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2734	$c raise sensor
2735	$c coords vmin $x [expr {$h - 2}]
2736
2737	$c bind vmin <ButtonPress> [itcl::code $this LegendRangeAction popup vmin]
2738	$c bind vmin <Enter> [itcl::code $this LegendRangeAction enter vmin]
2739	$c bind vmin <Leave> [itcl::code $this LegendRangeAction leave vmin]
2740
2741	$c bind vmax <ButtonPress> [itcl::code $this LegendRangeAction popup vmax]
2742	$c bind vmax <Enter> [itcl::code $this LegendRangeAction enter vmax]
2743	$c bind vmax <Leave> [itcl::code $this LegendRangeAction leave vmax]
2744	}
2745
2746	# ----------------------------------------------------------------------
2747	# USAGE: LegendTitleAction post
2748	# USAGE: LegendTitleAction enter
2749	# USAGE: LegendTitleAction leave
2750	# USAGE: LegendTitleAction save
2751	#
2752	# Used internally to handle the dropdown list for the fields menu combobox.
2753	# The post option is invoked when the field title is pressed to launch the
2754	# dropdown. The enter option is invoked when the user mouses over the field
2755	# title. The leave option is invoked when the user moves the mouse away
2756	# from the field title. The save option is invoked whenever there is a
2757	# selection from the list, to alert the visualization server.
2758	# ----------------------------------------------------------------------
2759	itcl::body Rappture::VtkIsosurfaceViewer::LegendTitleAction {option} {
2760	set c $itk_component(view)
2761	switch -- $option {
2762	post {
2763	foreach { x1 y1 x2 y2 } [$c bbox title] break
2764	set cw [winfo width $itk_component(view)]
2765	set mw [winfo reqwidth $itk_component(fieldmenu)]
2766	set x1 [expr $cw - $mw]
2767	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2768	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2769	tk_popup $itk_component(fieldmenu) $x $y
2770	}
2771	enter {
2772	$c itemconfigure title -fill red
2773	}
2774	leave {
2775	$c itemconfigure title -fill $itk_option(-plotforeground)
2776	}
2777	save {
2778	$itk_component(field) value $_curFldLabel
2779	AdjustSetting -field
2780	}
2781	default {
2782	error "bad option \"$option\": should be post, enter, leave or save"
2783	}
2784	}
2785	}
2786
2787	# ----------------------------------------------------------------------
2788	# USAGE: LegendRangeValidate <widget> <which> <value>
2789	#
2790	# Used internally to validate a legend range min/max value.
2791	# Returns a boolean value telling if <value> was accepted (1) or rejected (0)
2792	# If the value is rejected, a tooltip/warning message is popped up
2793	# near the widget that asked for the validation, specified by <widget>
2794	#
2795	# <widget> is the widget where a tooltip/warning message should show up on
2796	# <which> is either "vmin" or "vmax".
2797	# <value> is the value to be validated.
2798	# ----------------------------------------------------------------------
2799	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeValidate {widget which value} {
2800	#check for a valid value
2801	if {[string is double $value] != 1} {
2802	set msg "should be valid number"
2803	if {$widget != ""} {
2804	Rappture::Tooltip::cue $widget $msg
2805	} else {
2806	# error "bad value \"$value\": $msg"
2807	error $msg
2808	}
2809	return 0
2810	}
2811
2812	switch -- $which {
2813	vmin {
2814	# check for min > max
2815	if {$value > [$itk_component(max) value]} {
2816	set msg "min > max, change max first"
2817	if {$widget != ""} {
2818	Rappture::Tooltip::cue $widget $msg
2819	} else {
2820	# error "bad value \"$value\": $msg"
2821	error $msg
2822	}
2823	return 0
2824	}
2825	}
2826	vmax {
2827	# check for max < min
2828	if {$value < [$itk_component(min) value]} {
2829	set msg "max < min, change min first"
2830	if {$widget != ""} {
2831	Rappture::Tooltip::cue $widget $msg
2832	} else {
2833	# error "bad value \"$value\": $msg"
2834	error $msg
2835	}
2836	return 0
2837	}
2838	}
2839	default {
2840	error "bad option \"$which\": should be vmin, vmax"
2841	}
2842	}
2843	}
2844
2845	itcl::body Rappture::VtkIsosurfaceViewer::MouseOver2Which {} {
2846	switch -- $_mouseOver {
2847	vmin {
2848	set which min
2849	}
2850	vmax {
2851	set which max
2852	}
2853	default {
2854	error "bad _mouseOver \"$_mouseOver\": should be vmin, vmax"
2855	}
2856	}
2857	return $which
2858	}
2859
2860	# ----------------------------------------------------------------------
2861	# USAGE: LegendRangeAction enter <which>
2862	# USAGE: LegendRangeAction leave <which>
2863	#
2864	# USAGE: LegendRangeAction popup <which>
2865	# USAGE: LegendRangeAction activate
2866	# USAGE: LegendRangeAction validate <value>
2867	# USAGE: LegendRangeAction apply <value>
2868	#
2869	# Used internally to handle the mouseover and popup entry for the field range
2870	# inputs. The enter option is invoked when the user moves the mouse over the
2871	# min or max field range. The leave option is invoked when the user moves the
2872	# mouse away from the min or max field range. The popup option is invoked when
2873	# the user click's on a field range. The popup option stores internally which
2874	# widget is requesting a popup ( in the _mouseOver variable) and calls the
2875	# activate command of the widget. The widget's activate command calls back to
2876	# this method to get the xywh dimensions of the popup editor. After the user
2877	# changes focus or sets the value in the editor, the editor calls this methods
2878	# validate and apply options to set the value.
2879	# ----------------------------------------------------------------------
2880	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeAction {option args} {
2881	set c $itk_component(view)
2882
2883	switch -- $option {
2884	enter {
2885	set which [lindex $args 0]
2886	$c itemconfigure $which -fill red
2887	}
2888	leave {
2889	set which [lindex $args 0]
2890	$c itemconfigure $which -fill $itk_option(-plotforeground)
2891	}
2892	popup {
2893	DisableMouseRotationBindings
2894	set which [lindex $args 0]
2895	set _mouseOver $which
2896	$itk_component(editor) activate
2897	}
2898	activate {
2899	foreach { x1 y1 x2 y2 } [$c bbox $_mouseOver] break
2900	set which [MouseOver2Which]
2901	set info(text) [$itk_component($which) value]
2902	set info(x) [expr $x1 + [winfo rootx $c]]
2903	set info(y) [expr $y1 + [winfo rooty $c]]
2904	set info(w) [expr $x2 - $x1]
2905	set info(h) [expr $y2 - $y1]
2906	return [array get info]
2907	}
2908	validate {
2909	if {[llength $args] != 1} {
2910	error "wrong # args: should be \"editor validate value\""
2911	}
2912
2913	set value [lindex $args 0]
2914	if {[LegendRangeValidate $itk_component(editor) $_mouseOver $value] == 0} {
2915	return 0
2916	}
2917
2918	# value was good, apply it
2919	# reset the mouse rotation bindings
2920	SetupMouseRotationBindings
2921	}
2922	apply {
2923	if {[llength $args] != 1} {
2924	error "wrong # args: should be \"editor apply value\""
2925	}
2926	set value [string trim [lindex $args 0]]
2927
2928	set which [MouseOver2Which]
2929
2930	# only set custom range if value changed
2931	if {[$itk_component($which) value] != $value} {
2932	# set the flag stating the custom range came from the legend
2933	# change the value in the gauge
2934	# turn on crange to enable the labels and gauges
2935	# call AdjustSetting -range (inside ToggleCustomRange)
2936	# to update drawing and legend
2937	set _customRangeClick 0
2938	$itk_component($which) value $value
2939	$itk_component(crange) select
2940	ToggleCustomRange
2941	}
2942	}
2943	default {
2944	error "bad option \"$option\": should be enter, leave, activate, validate, apply"
2945	}
2946	}
2947	}
2948
2949	# ----------------------------------------------------------------------
2950	# USAGE: ToggleCustomRange
2951	#
2952	# Called whenever the custom range is turned on or off. Used to save
2953	# the custom min and custom max set by the user. When the -customrange
2954	# setting is turned on, the range min and range max gauges are set
2955	# with the last value set by the user, or the default range if no
2956	# previous min and max were set.
2957	#
2958	# When the custom range is turned on, we check how it was turned on
2959	# by querying _customRangeClick. If the variable is 1, this means
2960	# the user clicked the crange checkbutton and we should pull the
2961	# custom range values from our backup variables. If the variable is 0,
2962	# the custom range was enabled through the user manipulating the
2963	# min and max value in the legend.
2964	# ----------------------------------------------------------------------
2965	itcl::body Rappture::VtkIsosurfaceViewer::ToggleCustomRange {args} {
2966	if { ! $_settings(-customrange) } {
2967	# custom range was turned off
2968
2969	# disable the min/max labels and gauge widgets
2970	$itk_component(l_min) configure -state disabled
2971	$itk_component(min) configure -state disabled
2972	$itk_component(l_max) configure -state disabled
2973	$itk_component(max) configure -state disabled
2974
2975	# backup the custom range
2976	set _settings(-customrangemin) [$itk_component(min) value]
2977	set _settings(-customrangemax) [$itk_component(max) value]
2978
2979	# set the gauges to dataset's min and max
2980	foreach { vmin vmax } $_limits($_curFldName) break
2981	SetMinMaxGauges $vmin $vmax
2982	} else {
2983	# custom range was turned on
2984
2985	# enable the min/max labels and gauge widgets
2986	$itk_component(l_min) configure -state normal
2987	$itk_component(min) configure -state normal
2988	$itk_component(l_max) configure -state normal
2989	$itk_component(max) configure -state normal
2990
2991	# if the custom range is being turned on by clicking the
2992	# checkbox, restore the min and max gauges from the backup
2993	# variables. otherwise, new values for the min and max
2994	# widgets will be set later from the legend's editor.
2995	if { $_customRangeClick } {
2996	SetMinMaxGauges $_settings(-customrangemin) $_settings(-customrangemax)
2997	}
2998
2999	# reset the click flag
3000	set _customRangeClick 1
3001	}
3002	AdjustSetting -range
3003	}
3004
3005	# ----------------------------------------------------------------------
3006	# USAGE: SetMinMaxGauges <min> <max>
3007	#
3008	# Set the min and max gauges in the correct order, avoiding the
3009	# error where you try to set the min > max before updating the max or
3010	# set the max < min before updating the min.
3011	#
3012	# There are five range cases to consider with our current range validation.
3013	# For example:
3014	# [2,3] -> [0,1] : update min first, max last
3015	# [2,3] -> [4,5] : update max first, min last
3016	# [2,3] -> [0,2.5] : update min or max first
3017	# [2,3] -> [2.5,5] : update min or max first
3018	# [2,3] -> [2.25,2.75] : update min or max first
3019	#
3020	# In 4 of the cases we can update min first and max last, so we only
3021	# need to check the case where old max < new min, where we update
3022	# max first and min last.
3023	# ----------------------------------------------------------------------
3024	itcl::body Rappture::VtkIsosurfaceViewer::SetMinMaxGauges {min max} {
3025
3026	if { [$itk_component(max) value] < $min} {
3027	# old max < new min
3028	# shift range toward right
3029	# extend max first, then update min
3030	$itk_component(max) value $max
3031	$itk_component(min) value $min
3032	} else {
3033	# extend min first, then update max
3034	$itk_component(min) value $min
3035	$itk_component(max) value $max
3036	}
3037	}
3038
3039	#
3040	# SetCurrentColormap --
3041	#
3042	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
3043	# Keep track of the colormaps that we build.
3044	if { ![info exists _colormaps($name)] } {
3045	BuildColormap $name
3046	set _colormaps($name) 1
3047	}
3048	set _currentColormap $name
3049	SendCmd "contour3d colormap $_currentColormap"
3050	SendCmd "cutplane colormap $_currentColormap"
3051	}
3052
3053	#
3054	# BuildColormap --
3055	#
3056	# Build the designated colormap on the server.
3057	#
3058	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
3059	set cmap [ColorsToColormap $name]
3060	if { [llength $cmap] == 0 } {
3061	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
3062	}
3063	set amap "0.0 1.0 1.0 1.0"
3064	SendCmd "colormap add $name { $cmap } { $amap }"
3065	}
3066
3067	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
3068	array set positions {
3069	front "1 0 0 0"
3070	back "0 0 1 0"
3071	left "0.707107 0 -0.707107 0"
3072	right "0.707107 0 0.707107 0"
3073	top "0.707107 -0.707107 0 0"
3074	bottom "0.707107 0.707107 0 0"
3075	}
3076	foreach name { -qw -qx -qy -qz } value $positions($side) {
3077	set _view($name) $value
3078	}
3079	set q [ViewToQuaternion]
3080	$_arcball quaternion $q
3081	SendCmd "camera orient $q"
3082	SendCmd "camera reset"
3083	set _view(-xpan) 0
3084	set _view(-ypan) 0
3085	set _view(-zoom) 1.0
3086	}
3087
3088	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
3089	if { ![info exists _limits($_curFldName)] } {
3090	puts stderr "no _curFldName"
3091	return ""
3092	}
3093	if { $_contourList(numLevels) < 1 } {
3094	# There are tools that set 0 levels to get cutplanes only
3095	#puts stderr "numLevels < 1"
3096	return ""
3097	}
3098	if { [llength $_contourList(reqValues)] > 1 } {
3099	set values $_contourList(reqValues)
3100	} else {
3101	# if custom range has been set, use the custom min and max
3102	# to generate contour list values
3103	if { $_settings(-customrange) } {
3104	set vmin [$itk_component(min) value]
3105	set vmax [$itk_component(max) value]
3106	} else {
3107	# use the field limits to calculate the contour list values
3108	foreach { vmin vmax } $_limits($_curFldName) break
3109	}
3110
3111	set v [blt::vector create \#auto]
3112	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
3113	$v delete end 0
3114	set values [$v range 0 end]
3115	blt::vector destroy $v
3116	}
3117	set _contourList(values) $values
3118	}
3119
3120	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
3121	set _first $dataobj
3122	$itk_component(field) choices delete 0 end
3123	$itk_component(fieldmenu) delete 0 end
3124	array unset _fields
3125	set _curFldName ""
3126	foreach cname [$_first components] {
3127	foreach fname [$_first fieldnames $cname] {
3128	if { [info exists _fields($fname)] } {
3129	continue
3130	}
3131	foreach { label units components } \
3132	[$_first fieldinfo $fname] break
3133	$itk_component(field) choices insert end "$fname" "$label"
3134	$itk_component(fieldmenu) add radiobutton -label "$label" \
3135	-value $label -variable [itcl::scope _curFldLabel] \
3136	-selectcolor red \
3137	-activebackground $itk_option(-plotbackground) \
3138	-activeforeground $itk_option(-plotforeground) \
3139	-font "Arial 8" \
3140	-command [itcl::code $this LegendTitleAction save]
3141	set _fields($fname) [list $label $units $components]
3142	if { $_curFldName == "" } {
3143	set _curFldName $fname
3144	set _curFldLabel $label
3145	}
3146	}
3147	}
3148	$itk_component(field) value $_curFldLabel
3149	if { $_settings(-customrange) } {
3150	set limits [list [$itk_component(min) value] [$itk_component(max) value]]
3151	SendCmd "dataset maprange explicit $limits $_curFldName"
3152	if { $limits != $_currentLimits } {
3153	set _currentLimits $limits
3154	EventuallyChangeContourLevels
3155	}
3156	} else {
3157	if { ![info exists _limits($_curFldName)] } {
3158	SendCmd "dataset maprange all"
3159	} else {
3160	set limits $_limits($_curFldName)
3161	SendCmd "dataset maprange explicit $limits $_curFldName"
3162	if { $limits != $_currentLimits } {
3163	set _currentLimits $limits
3164	EventuallyChangeContourLevels
3165	}
3166	}
3167	}
3168	}

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