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source: branches/1.3/gui/scripts/vtkisosurfaceviewer.tcl @ 5181

Last change on this file since 5181 was 5181, checked in by ldelgass, 9 years ago
merge r5157:5158 from trunk (surfaceviewer)
File size: 111.5 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkisosurfaceviewer - Vtk 3D contour object viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2014 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 { hostlist args } {
42	Rappture::VisViewer::constructor $hostlist
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method parameters {title args} {
60	# do nothing
61	}
62	public method scale {args}
63
64	# The following methods are only used by this class.
65	private method AdjustSetting {what {value ""}}
66	private method BuildAxisTab {}
67	private method BuildCameraTab {}
68	private method BuildColormap { name }
69	private method BuildCutplaneTab {}
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 SetupMouseRotationBindings {}
119	private method SetupMousePanningBindings {}
120	private method SetupKeyboardBindings {}
121	private method Slice {option args}
122	private method ToggleCustomRange { args }
123	private method ViewToQuaternion {} {
124	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
125	}
126	private method Zoom {option}
127
128	private variable _arcball ""
129
130	private variable _dlist "" ; # list of data objects
131	private variable _obj2datasets
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 _dataset2style ;# maps dataobj-component to transfunc
143
144	private variable _click ; # info used for rotate operations
145	private variable _limits ; # autoscale min/max for all axes
146	private variable _view ; # view params for 3D view
147	private variable _settings
148	private variable _style; # Array of current component styles.
149	private variable _changed
150	private variable _initialStyle; # Array of initial component styles.
151	private variable _reset 1; # indicates if camera needs to be reset
152	# to starting position.
153
154	private variable _first "" ; # This is the topmost dataset.
155	private variable _start 0
156	private variable _title ""
157	private variable _isolines
158	private variable _contourList
159	private variable _currentLimits ""
160	private variable _widget
161
162	common _downloadPopup; # download options from popup
163	private common _hardcopy
164	private variable _width 0
165	private variable _height 0
166	private variable _resizePending 0
167	private variable _rotatePending 0
168	private variable _cutplanePending 0
169	private variable _legendPending 0
170	private variable _field ""
171	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
172	private variable _fieldNames {}
173	private variable _fields
174	private variable _curFldName ""
175	private variable _curFldLabel ""
176
177	private variable _mouseOver ""; # what called LegendRangeAction, vmin or vmax
178	private variable _customRangeClick 1; # what called ToggleCustomRange
179	}
180
181	itk::usual VtkIsosurfaceViewer {
182	keep -background -foreground -cursor -font
183	keep -plotbackground -plotforeground
184	}
185
186	# ----------------------------------------------------------------------
187	# CONSTRUCTOR
188	# ----------------------------------------------------------------------
189	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
190	package require vtk
191	set _serverType "vtkvis"
192
193	# Rebuild event
194	$_dispatcher register !rebuild
195	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
196
197	# Resize event
198	$_dispatcher register !resize
199	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
200
201	# Rotate event
202	$_dispatcher register !rotate
203	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
204
205	# Legend event
206	$_dispatcher register !legend
207	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
208
209	# Contour levels event
210	$_dispatcher register !contours
211	$_dispatcher dispatch $this !contours \
212	"[itcl::code $this DoChangeContourLevels]; list"
213
214	# X-Cutplane event
215	$_dispatcher register !xcutplane
216	$_dispatcher dispatch $this !xcutplane \
217	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
218
219	# Y-Cutplane event
220	$_dispatcher register !ycutplane
221	$_dispatcher dispatch $this !ycutplane \
222	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
223
224	# Z-Cutplane event
225	$_dispatcher register !zcutplane
226	$_dispatcher dispatch $this !zcutplane \
227	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
228
229	#
230	# Populate parser with commands handle incoming requests
231	#
232	$_parser alias image [itcl::code $this ReceiveImage]
233	$_parser alias dataset [itcl::code $this ReceiveDataset]
234	$_parser alias legend [itcl::code $this ReceiveLegend]
235
236	# Initialize the view to some default parameters.
237	array set _view {
238	-ortho 0
239	-qw 0.853553
240	-qx -0.353553
241	-qy 0.353553
242	-qz 0.146447
243	-xpan 0
244	-ypan 0
245	-zoom 1.0
246	}
247	set _arcball [blt::arcball create 100 100]
248	$_arcball quaternion [ViewToQuaternion]
249
250	array set _contourList {
251	numLevels 10
252	reqValues ""
253	updatePending 0
254	values ""
255	}
256	array set _settings {
257	-axesvisible 1
258	-axislabels 1
259	-axisminorticks 1
260	-axismode "static"
261	-background black
262	-colormap BCGYR
263	-colormapvisible 1
264	-customrange 0
265	-customrangemin 0
266	-customrangemax 1
267	-cutplaneedges 0
268	-cutplanelighting 1
269	-cutplaneopacity 1.0
270	-cutplanepreinterp 1
271	-cutplanesvisible 0
272	-cutplanewireframe 0
273	-field "Default"
274	-isolinecolor white
275	-isosurfaceedges 0
276	-isosurfacelighting 1
277	-isosurfaceopacity 0.6
278	-isosurfacevisible 1
279	-isosurfacewireframe 0
280	-legendvisible 1
281	-numcontours 10
282	-outline 0
283	-xcutplaneposition 50
284	-xcutplanevisible 1
285	-xgrid 0
286	-ycutplaneposition 50
287	-ycutplanevisible 1
288	-ygrid 0
289	-zcutplaneposition 50
290	-zcutplanevisible 1
291	-zgrid 0
292	}
293	array set _changed {
294	-colormap 0
295	-cutplaneedges 0
296	-cutplanelighting 0
297	-cutplaneopacity 0
298	-cutplanepreinterp 0
299	-cutplanesvisible 0
300	-cutplanewireframe 0
301	-isosurfaceedges 0
302	-isosurfacelighting 0
303	-isosurfaceopacity 0
304	-isosurfacevisible 0
305	-isosurfacewireframe 0
306	-numcontours 0
307	-outline 0
308	-xcutplaneposition 0
309	-xcutplanevisible 0
310	-ycutplaneposition 0
311	-ycutplanevisible 0
312	-zcutplaneposition 0
313	-zcutplanevisible 0
314	}
315	array set _widget {
316	-isosurfaceopacity 60
317	-cutplaneopacity 100
318	}
319
320	itk_component add view {
321	canvas $itk_component(plotarea).view \
322	-highlightthickness 0 -borderwidth 0
323	} {
324	usual
325	ignore -highlightthickness -borderwidth -background
326	}
327
328	itk_component add fieldmenu {
329	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
330	-tearoff 0
331	} {
332	usual
333	ignore -background -foreground -relief -tearoff
334	}
335
336	# add an editor for adjusting the legend min and max values
337	itk_component add editor {
338	Rappture::Editor $itk_interior.editor \
339	-activatecommand [itcl::code $this LegendRangeAction activate] \
340	-validatecommand [itcl::code $this LegendRangeAction validate] \
341	-applycommand [itcl::code $this LegendRangeAction apply]
342	}
343
344	set c $itk_component(view)
345	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
346	bind $c <4> [itcl::code $this Zoom in 0.25]
347	bind $c <5> [itcl::code $this Zoom out 0.25]
348	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
349	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
350	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
351	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
352	bind $c <Enter> "focus %W"
353	bind $c <Control-F1> [itcl::code $this ToggleConsole]
354
355	# Fix the scrollregion in case we go off screen
356	$c configure -scrollregion [$c bbox all]
357
358	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
359	set _map(cwidth) -1
360	set _map(cheight) -1
361	set _map(zoom) 1.0
362	set _map(original) ""
363
364	set f [$itk_component(main) component controls]
365	itk_component add reset {
366	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
367	-highlightthickness 0 \
368	-image [Rappture::icon reset-view] \
369	-command [itcl::code $this Zoom reset]
370	} {
371	usual
372	ignore -highlightthickness
373	}
374	pack $itk_component(reset) -side top -padx 2 -pady 2
375	Rappture::Tooltip::for $itk_component(reset) \
376	"Reset the view to the default zoom level"
377
378	itk_component add zoomin {
379	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
380	-highlightthickness 0 \
381	-image [Rappture::icon zoom-in] \
382	-command [itcl::code $this Zoom in]
383	} {
384	usual
385	ignore -highlightthickness
386	}
387	pack $itk_component(zoomin) -side top -padx 2 -pady 2
388	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
389
390	itk_component add zoomout {
391	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
392	-highlightthickness 0 \
393	-image [Rappture::icon zoom-out] \
394	-command [itcl::code $this Zoom out]
395	} {
396	usual
397	ignore -highlightthickness
398	}
399	pack $itk_component(zoomout) -side top -padx 2 -pady 2
400	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
401
402	itk_component add contour {
403	Rappture::PushButton $f.contour \
404	-onimage [Rappture::icon volume-on] \
405	-offimage [Rappture::icon volume-off] \
406	-variable [itcl::scope _settings(-isosurfacevisible)] \
407	-command [itcl::code $this AdjustSetting -isosurfacevisible]
408	}
409	$itk_component(contour) select
410	Rappture::Tooltip::for $itk_component(contour) \
411	"Hide the isosurface"
412	pack $itk_component(contour) -padx 2 -pady 2
413
414	itk_component add cutplane {
415	Rappture::PushButton $f.cutplane \
416	-onimage [Rappture::icon cutbutton] \
417	-offimage [Rappture::icon cutbutton] \
418	-variable [itcl::scope _settings(-cutplanesvisible)] \
419	-command [itcl::code $this AdjustSetting -cutplanesvisible]
420	}
421	Rappture::Tooltip::for $itk_component(cutplane) \
422	"Show the cutplanes"
423	pack $itk_component(cutplane) -padx 2 -pady 2
424
425
426	if { [catch {
427	BuildIsosurfaceTab
428	BuildCutplaneTab
429	BuildAxisTab
430	BuildCameraTab
431	} errs] != 0 } {
432	puts stderr errs=$errs
433	}
434
435	# Legend
436	set _image(legend) [image create photo]
437	itk_component add legend {
438	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
439	} {
440	usual
441	ignore -highlightthickness
442	rename -background -plotbackground plotBackground Background
443	}
444
445	# Hack around the Tk panewindow. The problem is that the requested
446	# size of the 3d view isn't set until an image is retrieved from
447	# the server. So the panewindow uses the tiny size.
448	set w 10000
449	pack forget $itk_component(view)
450	blt::table $itk_component(plotarea) \
451	0,0 $itk_component(view) -fill both -reqwidth $w
452	blt::table configure $itk_component(plotarea) c1 -resize none
453
454	SetupMouseRotationBindings
455	SetupMousePanningBindings
456	SetupKeyboardBindings
457
458
459	#bind $itk_component(view) <ButtonRelease-3> \
460	# [itcl::code $this Pick %x %y]
461
462
463	if {[string equal "x11" [tk windowingsystem]]} {
464	# Bindings for zoom via mouse
465	bind $itk_component(view) <4> [itcl::code $this Zoom out]
466	bind $itk_component(view) <5> [itcl::code $this Zoom in]
467	}
468
469	set _image(download) [image create photo]
470
471	eval itk_initialize $args
472
473	EnableWaitDialog 900
474	Connect
475	}
476
477	# ----------------------------------------------------------------------
478	# DESTRUCTOR
479	# ----------------------------------------------------------------------
480	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
481	Disconnect
482	image delete $_image(plot)
483	image delete $_image(download)
484	catch { blt::arcball destroy $_arcball }
485	}
486
487	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseRotationBindings {} {
488	# Bindings for rotation via mouse
489	bind $itk_component(view) <ButtonPress-1> \
490	[itcl::code $this Rotate click %x %y]
491	bind $itk_component(view) <B1-Motion> \
492	[itcl::code $this Rotate drag %x %y]
493	bind $itk_component(view) <ButtonRelease-1> \
494	[itcl::code $this Rotate release %x %y]
495	}
496
497	itcl::body Rappture::VtkIsosurfaceViewer::DisableMouseRotationBindings {} {
498	# Bindings for rotation via mouse
499	bind $itk_component(view) <ButtonPress-1> ""
500	bind $itk_component(view) <B1-Motion> ""
501	bind $itk_component(view) <ButtonRelease-1> ""
502	}
503
504	itcl::body Rappture::VtkIsosurfaceViewer::SetupMousePanningBindings {} {
505	# Bindings for panning via mouse
506	bind $itk_component(view) <ButtonPress-2> \
507	[itcl::code $this Pan click %x %y]
508	bind $itk_component(view) <B2-Motion> \
509	[itcl::code $this Pan drag %x %y]
510	bind $itk_component(view) <ButtonRelease-2> \
511	[itcl::code $this Pan release %x %y]
512	}
513
514	itcl::body Rappture::VtkIsosurfaceViewer::SetupKeyboardBindings {} {
515	# Bindings for panning via keyboard
516	bind $itk_component(view) <KeyPress-Left> \
517	[itcl::code $this Pan set -10 0]
518	bind $itk_component(view) <KeyPress-Right> \
519	[itcl::code $this Pan set 10 0]
520	bind $itk_component(view) <KeyPress-Up> \
521	[itcl::code $this Pan set 0 -10]
522	bind $itk_component(view) <KeyPress-Down> \
523	[itcl::code $this Pan set 0 10]
524	bind $itk_component(view) <Shift-KeyPress-Left> \
525	[itcl::code $this Pan set -2 0]
526	bind $itk_component(view) <Shift-KeyPress-Right> \
527	[itcl::code $this Pan set 2 0]
528	bind $itk_component(view) <Shift-KeyPress-Up> \
529	[itcl::code $this Pan set 0 -2]
530	bind $itk_component(view) <Shift-KeyPress-Down> \
531	[itcl::code $this Pan set 0 2]
532
533	# Bindings for zoom via keyboard
534	bind $itk_component(view) <KeyPress-Prior> \
535	[itcl::code $this Zoom out]
536	bind $itk_component(view) <KeyPress-Next> \
537	[itcl::code $this Zoom in]
538
539	bind $itk_component(view) <Enter> "focus $itk_component(view)"
540	}
541
542	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
543	if { $_width < 2 } {
544	set _width 500
545	}
546	if { $_height < 2 } {
547	set _height 500
548	}
549	set _start [clock clicks -milliseconds]
550	SendCmd "screen size $_width $_height"
551
552	EventuallyRequestLegend
553	set _resizePending 0
554	}
555
556	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
557	GenerateContourList
558	SendCmd [list contour3d contourlist $_contourList(values)]
559	SendCmd [list camera reset]
560	DrawLegend
561	set _contourList(updatePending) 0
562	}
563
564	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
565	SendCmd "camera orient [ViewToQuaternion]"
566	set _rotatePending 0
567	}
568
569	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
570	if { !$_legendPending } {
571	set _legendPending 1
572	$_dispatcher event -idle !legend
573	}
574	}
575
576	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
577	set _width $w
578	set _height $h
579	$_arcball resize $w $h
580	if { !$_resizePending } {
581	set _resizePending 1
582	$_dispatcher event -after 400 !resize
583	}
584	}
585
586	set rotate_delay 100
587
588	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
589	QuaternionToView $q
590	if { !$_rotatePending } {
591	set _rotatePending 1
592	global rotate_delay
593	$_dispatcher event -after $rotate_delay !rotate
594	}
595	}
596
597	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
598	if { !$_cutplanePending } {
599	set _cutplanePending 1
600	$_dispatcher event -after 100 !${axis}cutplane
601	}
602	}
603
604	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
605	set n $_contourList(numLevels)
606	set _contourList(values) ""
607	if { !$_contourList(updatePending) } {
608	set _contourList(updatePending) 1
609	global rotate_delay
610	$_dispatcher event -after $rotate_delay !contours
611	}
612	}
613
614	# ----------------------------------------------------------------------
615	# USAGE: add <dataobj> ?<settings>?
616	#
617	# Clients use this to add a data object to the plot. The optional
618	# <settings> are used to configure the plot. Allowed settings are
619	# -color, -brightness, -width, -linestyle, and -raise.
620	# ----------------------------------------------------------------------
621	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
622	if { ![$dataobj isvalid] } {
623	return; # Object doesn't contain valid data.
624	}
625	array set params {
626	-color auto
627	-width 1
628	-linestyle solid
629	-brightness 0
630	-raise 0
631	-description ""
632	-param ""
633	-type ""
634	}
635	array set params $settings
636	set params(-description) ""
637	set params(-param) ""
638	array set params $settings
639
640	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
641	# can't handle -autocolors yet
642	set params(-color) black
643	}
644	set pos [lsearch -exact $_dlist $dataobj]
645	if {$pos < 0} {
646	lappend _dlist $dataobj
647	}
648	set _obj2ovride($dataobj-color) $params(-color)
649	set _obj2ovride($dataobj-width) $params(-width)
650	set _obj2ovride($dataobj-raise) $params(-raise)
651	$_dispatcher event -idle !rebuild
652	}
653
654	# ----------------------------------------------------------------------
655	# USAGE: delete ?<dataobj1> <dataobj2> ...?
656	#
657	# Clients use this to delete a dataobj from the plot. If no dataobjs
658	# are specified, then all dataobjs are deleted. No data objects are
659	# deleted. They are only removed from the display list.
660	#
661	# ----------------------------------------------------------------------
662	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
663	if { [llength $args] == 0} {
664	set args $_dlist
665	}
666	# Delete all specified dataobjs
667	set changed 0
668	foreach dataobj $args {
669	set pos [lsearch -exact $_dlist $dataobj]
670	if { $pos < 0 } {
671	continue; # Don't know anything about it.
672	}
673	# Remove it from the dataobj list.
674	set _dlist [lreplace $_dlist $pos $pos]
675	array unset _obj2ovride $dataobj-*
676	array unset _settings $dataobj-*
677	set changed 1
678	}
679	# If anything changed, then rebuild the plot
680	if { $changed } {
681	$_dispatcher event -idle !rebuild
682	}
683	}
684
685	# ----------------------------------------------------------------------
686	# USAGE: get ?-objects?
687	# USAGE: get ?-visible?
688	# USAGE: get ?-image view?
689	#
690	# Clients use this to query the list of objects being plotted, in
691	# order from bottom to top of this result. The optional "-image"
692	# flag can also request the internal images being shown.
693	# ----------------------------------------------------------------------
694	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
695	if {[llength $args] == 0} {
696	set args "-objects"
697	}
698
699	set op [lindex $args 0]
700	switch -- $op {
701	"-objects" {
702	# put the dataobj list in order according to -raise options
703	set dlist {}
704	foreach dataobj $_dlist {
705	if { ![IsValidObject $dataobj] } {
706	continue
707	}
708	if {[info exists _obj2ovride($dataobj-raise)] &&
709	$_obj2ovride($dataobj-raise)} {
710	set dlist [linsert $dlist 0 $dataobj]
711	} else {
712	lappend dlist $dataobj
713	}
714	}
715	return $dlist
716	}
717	"-visible" {
718	set dlist {}
719	foreach dataobj $_dlist {
720	if { ![IsValidObject $dataobj] } {
721	continue
722	}
723	if { ![info exists _obj2ovride($dataobj-raise)] } {
724	# No setting indicates that the object isn't visible.
725	continue
726	}
727	# Otherwise use the -raise parameter to put the object to
728	# the front of the list.
729	if { $_obj2ovride($dataobj-raise) } {
730	set dlist [linsert $dlist 0 $dataobj]
731	} else {
732	lappend dlist $dataobj
733	}
734	}
735	return $dlist
736	}
737	-image {
738	if {[llength $args] != 2} {
739	error "wrong # args: should be \"get -image view\""
740	}
741	switch -- [lindex $args end] {
742	view {
743	return $_image(plot)
744	}
745	default {
746	error "bad image name \"[lindex $args end]\": should be view"
747	}
748	}
749	}
750	default {
751	error "bad option \"$op\": should be -objects or -image"
752	}
753	}
754	}
755
756	# ----------------------------------------------------------------------
757	# USAGE: scale ?<data1> <data2> ...?
758	#
759	# Sets the default limits for the overall plot according to the
760	# limits of the data for all of the given <data> objects. This
761	# accounts for all objects--even those not showing on the screen.
762	# Because of this, the limits are appropriate for all objects as
763	# the user scans through data in the ResultSet viewer.
764	# ----------------------------------------------------------------------
765	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
766	foreach dataobj $args {
767	if { ![$dataobj isvalid] } {
768	continue; # Object doesn't contain valid data.
769	}
770	foreach axis { x y z } {
771	set lim [$dataobj limits $axis]
772	if { ![info exists _limits($axis)] } {
773	set _limits($axis) $lim
774	continue
775	}
776	foreach {min max} $lim break
777	foreach {amin amax} $_limits($axis) break
778	if { $amin > $min } {
779	set amin $min
780	}
781	if { $amax < $max } {
782	set amax $max
783	}
784	set _limits($axis) [list $amin $amax]
785	}
786	foreach { fname lim } [$dataobj fieldlimits] {
787	if { ![info exists _limits($fname)] } {
788	set _limits($fname) $lim
789
790	# set reasonable defaults for
791	# customrangevmin and customrangevmax
792	foreach {min max} $lim break
793	SetMinMaxGauges $min $max
794	set _settings(-customrangemin) $min
795	set _settings(-customrangemax) $max
796
797	continue
798	}
799	foreach {min max} $lim break
800	foreach {fmin fmax} $_limits($fname) break
801	if { ! $_settings(-customrange) } {
802	SetMinMaxGauges $fmin $fmax
803	}
804	if { $fmin > $min } {
805	set fmin $min
806	}
807	if { $fmax < $max } {
808	set fmax $max
809	}
810	set _limits($fname) [list $fmin $fmax]
811	}
812	}
813	}
814
815	# ----------------------------------------------------------------------
816	# USAGE: download coming
817	# USAGE: download controls <downloadCommand>
818	# USAGE: download now
819	#
820	# Clients use this method to create a downloadable representation
821	# of the plot. Returns a list of the form {ext string}, where
822	# "ext" is the file extension (indicating the type of data) and
823	# "string" is the data itself.
824	# ----------------------------------------------------------------------
825	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
826	switch $option {
827	coming {
828	if {[catch {
829	blt::winop snap $itk_component(plotarea) $_image(download)
830	}]} {
831	$_image(download) configure -width 1 -height 1
832	$_image(download) put #000000
833	}
834	}
835	controls {
836	set popup .vtkviewerdownload
837	if { ![winfo exists .vtkviewerdownload] } {
838	set inner [BuildDownloadPopup $popup [lindex $args 0]]
839	} else {
840	set inner [$popup component inner]
841	}
842	set _downloadPopup(image_controls) $inner.image_frame
843	set num [llength [get]]
844	set num [expr {($num == 1) ? "1 result" : "$num results"}]
845	set word [Rappture::filexfer::label downloadWord]
846	$inner.summary configure -text "$word $num in the following format:"
847	update idletasks ;# Fix initial sizes
848	return $popup
849	}
850	now {
851	set popup .vtkviewerdownload
852	if {[winfo exists .vtkviewerdownload]} {
853	$popup deactivate
854	}
855	switch -- $_downloadPopup(format) {
856	"image" {
857	return [$this GetImage [lindex $args 0]]
858	}
859	"vtk" {
860	return [$this GetVtkData [lindex $args 0]]
861	}
862	}
863	return ""
864	}
865	default {
866	error "bad option \"$option\": should be coming, controls, now"
867	}
868	}
869	}
870
871	# ----------------------------------------------------------------------
872	# USAGE: Connect ?<host:port>,<host:port>...?
873	#
874	# Clients use this method to establish a connection to a new
875	# server, or to reestablish a connection to the previous server.
876	# Any existing connection is automatically closed.
877	# ----------------------------------------------------------------------
878	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
879	set _hosts [GetServerList "vtkvis"]
880	if { "" == $_hosts } {
881	return 0
882	}
883	set result [VisViewer::Connect $_hosts]
884	if { $result } {
885	if { $_reportClientInfo } {
886	# Tell the server the viewer, hub, user and session.
887	# Do this immediately on connect before buffering any commands
888	global env
889
890	set info {}
891	set user "???"
892	if { [info exists env(USER)] } {
893	set user $env(USER)
894	}
895	set session "???"
896	if { [info exists env(SESSION)] } {
897	set session $env(SESSION)
898	}
899	lappend info "version" "$Rappture::version"
900	lappend info "build" "$Rappture::build"
901	lappend info "svnurl" "$Rappture::svnurl"
902	lappend info "installdir" "$Rappture::installdir"
903	lappend info "hub" [exec hostname]
904	lappend info "client" "vtkisosurfaceviewer"
905	lappend info "user" $user
906	lappend info "session" $session
907	SendCmd "clientinfo [list $info]"
908	}
909
910	set w [winfo width $itk_component(view)]
911	set h [winfo height $itk_component(view)]
912	EventuallyResize $w $h
913	}
914	return $result
915	}
916
917	#
918	# isconnected --
919	#
920	# Indicates if we are currently connected to the visualization server.
921	#
922	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
923	return [VisViewer::IsConnected]
924	}
925
926	#
927	# disconnect --
928	#
929	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
930	Disconnect
931	set _reset 1
932	}
933
934	#
935	# Disconnect --
936	#
937	# Clients use this method to disconnect from the current rendering
938	# server.
939	#
940	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
941	VisViewer::Disconnect
942
943	$_dispatcher cancel !rebuild
944	$_dispatcher cancel !resize
945	$_dispatcher cancel !rotate
946	$_dispatcher cancel !xcutplane
947	$_dispatcher cancel !ycutplane
948	$_dispatcher cancel !zcutplane
949	$_dispatcher cancel !legend
950	# disconnected -- no more data sitting on server
951	set _outbuf ""
952	array unset _datasets
953	array unset _data
954	array unset _colormaps
955	array unset _dataset2style
956	array unset _obj2datasets
957	}
958
959	# ----------------------------------------------------------------------
960	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
961	#
962	# Invoked automatically whenever the "image" command comes in from
963	# the rendering server. Indicates that binary image data with the
964	# specified <size> will follow.
965	# ----------------------------------------------------------------------
966	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
967	array set info {
968	-token "???"
969	-bytes 0
970	-type image
971	}
972	array set info $args
973	set bytes [ReceiveBytes $info(-bytes)]
974	if { $info(-type) == "image" } {
975	if 0 {
976	set f [open "last.ppm" "w"]
977	fconfigure $f -encoding binary
978	puts -nonewline $f $bytes
979	close $f
980	}
981	$_image(plot) configure -data $bytes
982	#set time [clock seconds]
983	#set date [clock format $time]
984	#set w [image width $_image(plot)]
985	#set h [image height $_image(plot)]
986	#puts stderr "$date: received image ${w}x${h} image"
987	if { $_start > 0 } {
988	set finish [clock clicks -milliseconds]
989	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
990	set _start 0
991	}
992	} elseif { $info(type) == "print" } {
993	set tag $this-print-$info(-token)
994	set _hardcopy($tag) $bytes
995	}
996	}
997
998	#
999	# ReceiveDataset --
1000	#
1001	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
1002	if { ![isconnected] } {
1003	return
1004	}
1005	set option [lindex $args 0]
1006	switch -- $option {
1007	"scalar" {
1008	set option [lindex $args 1]
1009	switch -- $option {
1010	"world" {
1011	foreach { x y z value tag } [lrange $args 2 end] break
1012	}
1013	"pixel" {
1014	foreach { x y value tag } [lrange $args 2 end] break
1015	}
1016	}
1017	}
1018	"vector" {
1019	set option [lindex $args 1]
1020	switch -- $option {
1021	"world" {
1022	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
1023	}
1024	"pixel" {
1025	foreach { x y vx vy vz tag } [lrange $args 2 end] break
1026	}
1027	}
1028	}
1029	"names" {
1030	foreach { name } [lindex $args 1] {
1031	#puts stderr "Dataset: $name"
1032	}
1033	}
1034	default {
1035	error "unknown dataset option \"$option\" from server"
1036	}
1037	}
1038	}
1039
1040	# ----------------------------------------------------------------------
1041	# USAGE: Rebuild
1042	#
1043	# Called automatically whenever something changes that affects the
1044	# data in the widget. Clears any existing data and rebuilds the
1045	# widget to display new data.
1046	# ----------------------------------------------------------------------
1047	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
1048	set w [winfo width $itk_component(view)]
1049	set h [winfo height $itk_component(view)]
1050	if { $w < 2 \|\| $h < 2 } {
1051	update
1052	$_dispatcher event -idle !rebuild
1053	return
1054	}
1055
1056	# Turn on buffering of commands to the server. We don't want to
1057	# be preempted by a server disconnect/reconnect (which automatically
1058	# generates a new call to Rebuild).
1059	StartBufferingCommands
1060
1061	if { $_reset } {
1062	set _width $w
1063	set _height $h
1064	$_arcball resize $w $h
1065	DoResize
1066
1067	# Reset the camera and other view parameters
1068	$_arcball quaternion [ViewToQuaternion]
1069	InitSettings -ortho
1070	DoRotate
1071	PanCamera
1072	set _first ""
1073	InitSettings -background \
1074	-xgrid -ygrid -zgrid -axismode \
1075	-axesvisible -axislabels -axisminorticks
1076	#SendCmd "axis lformat all %g"
1077	StopBufferingCommands
1078	SendCmd "imgflush"
1079	StartBufferingCommands
1080	}
1081	set _first ""
1082	SendCmd "dataset visible 0"
1083	eval scale $_dlist
1084	foreach dataobj [get -objects] {
1085	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1086	set _first $dataobj
1087	SetCurrentFieldName $dataobj
1088	}
1089	set _obj2datasets($dataobj) ""
1090	foreach comp [$dataobj components] {
1091	set tag $dataobj-$comp
1092	if { ![info exists _datasets($tag)] } {
1093	set bytes [$dataobj vtkdata $comp]
1094	if 0 {
1095	set f [open "/tmp/isosurface.vtk" "w"]
1096	fconfigure $f -translation binary -encoding binary
1097	puts -nonewline $f $bytes
1098	close $f
1099	}
1100	set length [string length $bytes]
1101	if { $_reportClientInfo } {
1102	set info {}
1103	lappend info "tool_id" [$dataobj hints toolid]
1104	lappend info "tool_name" [$dataobj hints toolname]
1105	lappend info "tool_title" [$dataobj hints tooltitle]
1106	lappend info "tool_command" [$dataobj hints toolcommand]
1107	lappend info "tool_revision" [$dataobj hints toolrevision]
1108	lappend info "dataset_label" [$dataobj hints label]
1109	lappend info "dataset_size" $length
1110	lappend info "dataset_tag" $tag
1111	SendCmd "clientinfo [list $info]"
1112	}
1113	SendCmd "dataset add $tag data follows $length"
1114	append _outbuf $bytes
1115	set _datasets($tag) 1
1116	SetObjectStyle $dataobj $comp
1117	}
1118	lappend _obj2datasets($dataobj) $tag
1119	if { [info exists _obj2ovride($dataobj-raise)] } {
1120	SendCmd "contour3d visible 1 $tag"
1121	}
1122	}
1123	}
1124
1125	InitSettings -cutplanesvisible -isosurfacevisible -outline
1126	if { $_reset } {
1127	# These are settings that rely on a dataset being loaded.
1128	InitSettings \
1129	-isosurfacelighting \
1130	-field \
1131	-range \
1132	-isosurfacevisible \
1133	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1134	-isosurfacewireframe \
1135	-cutplanesvisible \
1136	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1137	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1138	-cutplanepreinterp -numcontours
1139
1140	Zoom reset
1141	foreach axis { x y z } {
1142	# Another problem fixed by a <view>. We looking into a data
1143	# object for the name of the axes. This should be global to
1144	# the viewer itself.
1145	set label [$_first hints ${axis}label]
1146	if { $label == "" } {
1147	set label [string toupper $axis]
1148	}
1149	# May be a space in the axis label
1150	SendCmd [list axis name $axis $label]
1151	}
1152	if { [array size _fields] < 2 } {
1153	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1154	}
1155	set _reset 0
1156	}
1157	# Redraw the legend even if we're using the same colormap. The position
1158	# of the isolines may have changed because the range of data changed.
1159	DrawLegend
1160
1161	# Actually write the commands to the server socket. If it fails, we don't
1162	# care. We're finished here.
1163	blt::busy hold $itk_component(hull)
1164	StopBufferingCommands; # Turn off buffering and send commands.
1165	blt::busy release $itk_component(hull)
1166	}
1167
1168	# ----------------------------------------------------------------------
1169	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1170	#
1171	# Returns a list of server IDs for the current datasets being displayed. This
1172	# is normally a single ID, but it might be a list of IDs if the current data
1173	# object has multiple components.
1174	# ----------------------------------------------------------------------
1175	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1176	set flag [lindex $args 0]
1177	switch -- $flag {
1178	"-all" {
1179	if { [llength $args] > 1 } {
1180	error "CurrentDatasets: can't specify dataobj after \"-all\""
1181	}
1182	set dlist [get -objects]
1183	}
1184	"-visible" {
1185	if { [llength $args] > 1 } {
1186	set dlist {}
1187	set args [lrange $args 1 end]
1188	foreach dataobj $args {
1189	if { [info exists _obj2ovride($dataobj-raise)] } {
1190	lappend dlist $dataobj
1191	}
1192	}
1193	} else {
1194	set dlist [get -visible]
1195	}
1196	}
1197	default {
1198	set dlist $args
1199	}
1200	}
1201	set rlist ""
1202	foreach dataobj $dlist {
1203	foreach comp [$dataobj components] {
1204	set tag $dataobj-$comp
1205	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1206	lappend rlist $tag
1207	}
1208	}
1209	}
1210	return $rlist
1211	}
1212
1213	# ----------------------------------------------------------------------
1214	# USAGE: Zoom in
1215	# USAGE: Zoom out
1216	# USAGE: Zoom reset
1217	#
1218	# Called automatically when the user clicks on one of the zoom
1219	# controls for this widget. Changes the zoom for the current view.
1220	# ----------------------------------------------------------------------
1221	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1222	switch -- $option {
1223	"in" {
1224	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1225	SendCmd "camera zoom $_view(-zoom)"
1226	}
1227	"out" {
1228	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1229	SendCmd "camera zoom $_view(-zoom)"
1230	}
1231	"reset" {
1232	array set _view {
1233	-qw 0.853553
1234	-qx -0.353553
1235	-qy 0.353553
1236	-qz 0.146447
1237	-xpan 0
1238	-ypan 0
1239	-zoom 1.0
1240	}
1241	if { $_first != "" } {
1242	set location [$_first hints camera]
1243	if { $location != "" } {
1244	array set _view $location
1245	}
1246	}
1247	$_arcball quaternion [ViewToQuaternion]
1248	DoRotate
1249	SendCmd "camera reset"
1250	}
1251	}
1252	}
1253
1254	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1255	set x $_view(-xpan)
1256	set y $_view(-ypan)
1257	SendCmd "camera pan $x $y"
1258	}
1259
1260	# ----------------------------------------------------------------------
1261	# USAGE: Rotate click <x> <y>
1262	# USAGE: Rotate drag <x> <y>
1263	# USAGE: Rotate release <x> <y>
1264	#
1265	# Called automatically when the user clicks/drags/releases in the
1266	# plot area. Moves the plot according to the user's actions.
1267	# ----------------------------------------------------------------------
1268	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1269	switch -- $option {
1270	"click" {
1271	$itk_component(view) configure -cursor fleur
1272	set _click(x) $x
1273	set _click(y) $y
1274	}
1275	"drag" {
1276	if {[array size _click] == 0} {
1277	Rotate click $x $y
1278	} else {
1279	set w [winfo width $itk_component(view)]
1280	set h [winfo height $itk_component(view)]
1281	if {$w <= 0 \|\| $h <= 0} {
1282	return
1283	}
1284
1285	if {[catch {
1286	# this fails sometimes for no apparent reason
1287	set dx [expr {double($x-$_click(x))/$w}]
1288	set dy [expr {double($y-$_click(y))/$h}]
1289	}]} {
1290	return
1291	}
1292	if { $dx == 0 && $dy == 0 } {
1293	return
1294	}
1295	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1296	EventuallyRotate $q
1297	set _click(x) $x
1298	set _click(y) $y
1299	}
1300	}
1301	"release" {
1302	Rotate drag $x $y
1303	$itk_component(view) configure -cursor ""
1304	catch {unset _click}
1305	}
1306	default {
1307	error "bad option \"$option\": should be click, drag, release"
1308	}
1309	}
1310	}
1311
1312	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1313	foreach tag [CurrentDatasets -visible] {
1314	SendCmd "dataset getscalar pixel $x $y $tag"
1315	}
1316	}
1317
1318	# ----------------------------------------------------------------------
1319	# USAGE: $this Pan click x y
1320	# $this Pan drag x y
1321	# $this Pan release x y
1322	#
1323	# Called automatically when the user clicks on one of the zoom
1324	# controls for this widget. Changes the zoom for the current view.
1325	# ----------------------------------------------------------------------
1326	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1327	switch -- $option {
1328	"set" {
1329	set w [winfo width $itk_component(view)]
1330	set h [winfo height $itk_component(view)]
1331	set x [expr $x / double($w)]
1332	set y [expr $y / double($h)]
1333	set _view(-xpan) [expr $_view(-xpan) + $x]
1334	set _view(-ypan) [expr $_view(-ypan) + $y]
1335	PanCamera
1336	return
1337	}
1338	"click" {
1339	set _click(x) $x
1340	set _click(y) $y
1341	$itk_component(view) configure -cursor hand1
1342	}
1343	"drag" {
1344	if { ![info exists _click(x)] } {
1345	set _click(x) $x
1346	}
1347	if { ![info exists _click(y)] } {
1348	set _click(y) $y
1349	}
1350	set w [winfo width $itk_component(view)]
1351	set h [winfo height $itk_component(view)]
1352	set dx [expr ($_click(x) - $x)/double($w)]
1353	set dy [expr ($_click(y) - $y)/double($h)]
1354	set _click(x) $x
1355	set _click(y) $y
1356	set _view(-xpan) [expr $_view(-xpan) - $dx]
1357	set _view(-ypan) [expr $_view(-ypan) - $dy]
1358	PanCamera
1359	}
1360	"release" {
1361	Pan drag $x $y
1362	$itk_component(view) configure -cursor ""
1363	}
1364	default {
1365	error "unknown option \"$option\": should set, click, drag, or release"
1366	}
1367	}
1368	}
1369
1370	# ----------------------------------------------------------------------
1371	# USAGE: InitSettings <what> ?<value>?
1372	#
1373	# Used internally to update rendering settings whenever parameters
1374	# change in the popup settings panel. Sends the new settings off
1375	# to the back end.
1376	# ----------------------------------------------------------------------
1377	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1378	foreach spec $args {
1379	if { [info exists _settings($_first-$spec)] } {
1380	# Reset global setting with dataobj specific setting
1381	set _settings($spec) $_settings($_first-$spec)
1382	}
1383	AdjustSetting $spec
1384	}
1385	}
1386
1387	#
1388	# AdjustSetting --
1389	#
1390	# Changes/updates a specific setting in the widget. There are
1391	# usually user-setable option. Commands are sent to the render
1392	# server.
1393	#
1394	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1395	if { ![isconnected] } {
1396	return
1397	}
1398	switch -- $what {
1399	"-axesvisible" {
1400	set bool $_settings($what)
1401	SendCmd "axis visible all $bool"
1402	}
1403	"-axislabels" {
1404	set bool $_settings($what)
1405	SendCmd "axis labels all $bool"
1406	}
1407	"-axisminorticks" {
1408	set bool $_settings($what)
1409	SendCmd "axis minticks all $bool"
1410	}
1411	"-axismode" {
1412	set mode [$itk_component(axisMode) value]
1413	set mode [$itk_component(axisMode) translate $mode]
1414	set _settings($what) $mode
1415	SendCmd "axis flymode $mode"
1416	}
1417	"-background" {
1418	set bgcolor [$itk_component(background) value]
1419	array set fgcolors {
1420	"black" "white"
1421	"white" "black"
1422	"grey" "black"
1423	}
1424	configure -plotbackground $bgcolor \
1425	-plotforeground $fgcolors($bgcolor)
1426	$itk_component(view) delete "legend"
1427	DrawLegend
1428	}
1429	"-cutplaneedges" {
1430	set _changed($what) 1
1431	set bool $_settings($what)
1432	SendCmd "cutplane edges $bool"
1433	}
1434	"-cutplanelighting" {
1435	set _changed($what) 1
1436	set bool $_settings($what)
1437	SendCmd "cutplane lighting $bool"
1438	}
1439	"-cutplaneopacity" {
1440	set _changed($what) 1
1441	set _settings($what) [expr $_widget($what) * 0.01]
1442	SendCmd "cutplane opacity $_settings($what)"
1443	}
1444	"-cutplanepreinterp" {
1445	set _changed($what) 1
1446	set bool $_settings($what)
1447	SendCmd "cutplane preinterp $bool"
1448	}
1449	"-cutplanesvisible" {
1450	set _changed($what) 1
1451	set bool $_settings($what)
1452	SendCmd "cutplane visible 0"
1453	if { $bool } {
1454	foreach tag [CurrentDatasets -visible] {
1455	SendCmd "cutplane visible $bool $tag"
1456	}
1457	}
1458	if { $bool } {
1459	Rappture::Tooltip::for $itk_component(cutplane) \
1460	"Hide the cutplanes"
1461	} else {
1462	Rappture::Tooltip::for $itk_component(cutplane) \
1463	"Show the cutplanes"
1464	}
1465	}
1466	"-cutplanewireframe" {
1467	set _changed($what) 1
1468	set bool $_settings($what)
1469	SendCmd "cutplane wireframe $bool"
1470	}
1471	"-colormap" {
1472	set _changed($what) 1
1473	StartBufferingCommands
1474	set color [$itk_component(colormap) value]
1475	set _settings($what) $color
1476	if { $color == "none" } {
1477	if { $_settings(-colormapvisible) } {
1478	SendCmd "contour3d colormode constant {}"
1479	set _settings(-colormapvisible) 0
1480	}
1481	} else {
1482	if { !$_settings(-colormapvisible) } {
1483	SendCmd "contour3d colormode $_colorMode $_curFldName"
1484	set _settings(-colormapvisible) 1
1485	}
1486	SetCurrentColormap $color
1487	}
1488	StopBufferingCommands
1489	EventuallyRequestLegend
1490	}
1491	"-field" {
1492	set label [$itk_component(field) value]
1493	set fname [$itk_component(field) translate $label]
1494	set _settings($what) $fname
1495	if { [info exists _fields($fname)] } {
1496	foreach { label units components } $_fields($fname) break
1497	if { $components > 1 } {
1498	set _colorMode vmag
1499	} else {
1500	set _colorMode scalar
1501	}
1502	set _curFldName $fname
1503	set _curFldLabel $label
1504	} else {
1505	puts stderr "unknown field \"$fname\""
1506	return
1507	}
1508	SendCmd "dataset scalar $_curFldName"
1509	if { ![info exists _limits($_curFldName)] } {
1510	SendCmd "dataset maprange all"
1511	} else {
1512	if { $_settings(-customrange) } {
1513	set vmin [$itk_component(min) value]
1514	set vmax [$itk_component(max) value]
1515	} else {
1516	foreach { vmin vmax } $_limits($_curFldName) break
1517	# set the min / max gauges with limits from the field
1518	# the legend's min and max text will be updated
1519	# when the legend is redrawn in DrawLegend
1520	SetMinMaxGauges $vmin $vmax
1521	}
1522	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1523	}
1524	SendCmd "cutplane colormode $_colorMode $_curFldName"
1525	SendCmd "contour3d colormode $_colorMode $_curFldName"
1526	SendCmd "camera reset"
1527	GenerateContourList
1528	DrawLegend
1529	}
1530	"-isolinecolor" {
1531	set color [$itk_component(isolineColor) value]
1532	set _settings($what) $color
1533	DrawLegend
1534	}
1535	"-isosurfaceedges" {
1536	set _changed($what) 1
1537	set bool $_settings($what)
1538	SendCmd "contour3d edges $bool"
1539	}
1540	"-isosurfacelighting" {
1541	set _changed($what) 1
1542	set bool $_settings($what)
1543	SendCmd "contour3d lighting $bool"
1544	}
1545	"-isosurfaceopacity" {
1546	set _changed($what) 1
1547	set _settings($what) [expr $_widget($what) * 0.01]
1548	SendCmd "contour3d opacity $_settings($what)"
1549	}
1550	"-isosurfacevisible" {
1551	set _changed($what) 1
1552	set bool $_settings($what)
1553	SendCmd "contour3d visible 0"
1554	if { $bool } {
1555	foreach tag [CurrentDatasets -visible] {
1556	SendCmd "contour3d visible $bool $tag"
1557	}
1558	Rappture::Tooltip::for $itk_component(contour) \
1559	"Hide the isosurface"
1560	} else {
1561	Rappture::Tooltip::for $itk_component(contour) \
1562	"Show the isosurface"
1563	}
1564	}
1565	"-isosurfacewireframe" {
1566	set _changed($what) 1
1567	set bool $_settings($what)
1568	SendCmd "contour3d wireframe $bool"
1569	}
1570	"-legendvisible" {
1571	if { !$_settings($what) } {
1572	$itk_component(view) delete legend
1573	}
1574	DrawLegend
1575	}
1576	"-numcontours" {
1577	set _changed($what) 1
1578	set _settings($what) [$itk_component(numcontours) value]
1579	if { $_contourList(numLevels) != $_settings($what) } {
1580	set _contourList(numLevels) $_settings($what)
1581	EventuallyChangeContourLevels
1582	}
1583	}
1584	"-ortho" {
1585	set bool $_view($what)
1586	if { $bool } {
1587	SendCmd "camera mode ortho"
1588	} else {
1589	SendCmd "camera mode persp"
1590	}
1591	}
1592	"-outline" {
1593	set _changed($what) 1
1594	set bool $_settings($what)
1595	SendCmd "outline visible 0"
1596	if { $bool } {
1597	foreach tag [CurrentDatasets -visible] {
1598	SendCmd "outline visible $bool $tag"
1599	}
1600	}
1601	}
1602	"-range" {
1603	if { $_settings(-customrange) } {
1604	set vmin [$itk_component(min) value]
1605	set vmax [$itk_component(max) value]
1606	} else {
1607	foreach { vmin vmax } $_limits($_curFldName) break
1608	}
1609	GenerateContourList
1610	SendCmd [list contour3d contourlist $_contourList(values)]
1611	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1612	DrawLegend
1613	}
1614	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1615	set _changed($what) 1
1616	set axis [string tolower [string range $what 1 1]]
1617	set bool $_settings($what)
1618	if { $bool } {
1619	$itk_component(${axis}position) configure -state normal \
1620	-troughcolor white
1621	} else {
1622	$itk_component(${axis}position) configure -state disabled \
1623	-troughcolor grey82
1624	}
1625	SendCmd "cutplane axis $axis $bool"
1626	}
1627	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1628	set _changed($what) 1
1629	set axis [string tolower [string range $what 1 1]]
1630	set pos [expr $_settings($what) * 0.01]
1631	SendCmd "cutplane slice ${axis} ${pos}"
1632	set _cutplanePending 0
1633	}
1634	"-xgrid" - "-ygrid" - "-zgrid" {
1635	set axis [string tolower [string range $what 1 1]]
1636	set bool $_settings($what)
1637	SendCmd "axis grid $axis $bool"
1638	}
1639	default {
1640	error "don't know how to fix $what"
1641	}
1642	}
1643	}
1644
1645	#
1646	# RequestLegend --
1647	#
1648	# Request a new legend from the server. The size of the legend
1649	# is determined from the height of the canvas.
1650	#
1651	# This should be called when
1652	# 1. A new current colormap is set.
1653	# 2. Window is resized.
1654	# 3. The limits of the data have changed. (Just need a redraw).
1655	# 4. Number of isolines have changed. (Just need a redraw).
1656	# 5. Legend becomes visible (Just need a redraw).
1657	#
1658	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1659	set _legendPending 0
1660	if { ![info exists _fields($_curFldName)] } {
1661	return
1662	}
1663	set fname $_curFldName
1664	set font "Arial 8"
1665	set lineht [font metrics $font -linespace]
1666	set w 12
1667	set h [expr {$_height - 2 * ($lineht + 2)}]
1668	if { $h < 1 } {
1669	return
1670	}
1671	if { [string match "component*" $fname] } {
1672	set title ""
1673	} else {
1674	if { [info exists _fields($fname)] } {
1675	foreach { title units } $_fields($fname) break
1676	if { $units != "" } {
1677	set title [format "%s (%s)" $title $units]
1678	}
1679	} else {
1680	set title $fname
1681	}
1682	}
1683	# If there's a title too, subtract one more line
1684	if { $title != "" } {
1685	incr h -$lineht
1686	}
1687	# Set the legend on the first isosurface dataset.
1688	if { $_currentColormap != "" } {
1689	set cmap $_currentColormap
1690	if { ![info exists _colormaps($cmap)] } {
1691	BuildColormap $cmap
1692	set _colormaps($cmap) 1
1693	}
1694	#SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1695	SendCmd "legend2 $cmap $w $h"
1696	}
1697	}
1698
1699	# ----------------------------------------------------------------------
1700	# CONFIGURATION OPTION: -plotbackground
1701	# ----------------------------------------------------------------------
1702	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1703	if { [isconnected] } {
1704	set rgb [Color2RGB $itk_option(-plotbackground)]
1705	SendCmd "screen bgcolor $rgb"
1706	}
1707	}
1708
1709	# ----------------------------------------------------------------------
1710	# CONFIGURATION OPTION: -plotforeground
1711	# ----------------------------------------------------------------------
1712	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1713	if { [isconnected] } {
1714	set rgb [Color2RGB $itk_option(-plotforeground)]
1715	SendCmd "axis color all $rgb"
1716	SendCmd "outline color $rgb"
1717	SendCmd "cutplane color $rgb"
1718	}
1719	}
1720
1721	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1722
1723	set fg [option get $itk_component(hull) font Font]
1724	#set bfg [option get $itk_component(hull) boldFont Font]
1725
1726	set inner [$itk_component(main) insert end \
1727	-title "Isosurface Settings" \
1728	-icon [Rappture::icon volume-on]]
1729	$inner configure -borderwidth 4
1730
1731	checkbutton $inner.contour \
1732	-text "Isosurfaces" \
1733	-variable [itcl::scope _settings(-isosurfacevisible)] \
1734	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1735	-font "Arial 9"
1736
1737	checkbutton $inner.wireframe \
1738	-text "Wireframe" \
1739	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1740	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1741	-font "Arial 9"
1742
1743	checkbutton $inner.lighting \
1744	-text "Enable Lighting" \
1745	-variable [itcl::scope _settings(-isosurfacelighting)] \
1746	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1747	-font "Arial 9"
1748
1749	checkbutton $inner.edges \
1750	-text "Edges" \
1751	-variable [itcl::scope _settings(-isosurfaceedges)] \
1752	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1753	-font "Arial 9"
1754
1755	checkbutton $inner.outline \
1756	-text "Outline" \
1757	-variable [itcl::scope _settings(-outline)] \
1758	-command [itcl::code $this AdjustSetting -outline] \
1759	-font "Arial 9"
1760
1761	checkbutton $inner.legend \
1762	-text "Legend" \
1763	-variable [itcl::scope _settings(-legendvisible)] \
1764	-command [itcl::code $this AdjustSetting -legendvisible] \
1765	-font "Arial 9"
1766
1767	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1768	itk_component add isolineColor {
1769	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1770	}
1771	$inner.linecolor choices insert end \
1772	"black" "black" \
1773	"blue" "blue" \
1774	"cyan" "cyan" \
1775	"green" "green" \
1776	"grey" "grey" \
1777	"magenta" "magenta" \
1778	"orange" "orange" \
1779	"red" "red" \
1780	"white" "white" \
1781	"none" "none"
1782
1783	$itk_component(isolineColor) value "white"
1784	bind $inner.linecolor <<Value>> \
1785	[itcl::code $this AdjustSetting -isolinecolor]
1786
1787	label $inner.background_l -text "Background" -font "Arial 9"
1788	itk_component add background {
1789	Rappture::Combobox $inner.background -width 10 -editable 0
1790	}
1791	$inner.background choices insert end \
1792	"black" "black" \
1793	"white" "white" \
1794	"grey" "grey"
1795
1796	$itk_component(background) value $_settings(-background)
1797	bind $inner.background <<Value>> \
1798	[itcl::code $this AdjustSetting -background]
1799
1800	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1801	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1802	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1803	-width 10 \
1804	-showvalue off \
1805	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1806	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
1807
1808	itk_component add field_l {
1809	label $inner.field_l -text "Field" -font "Arial 9"
1810	} {
1811	ignore -font
1812	}
1813	itk_component add field {
1814	Rappture::Combobox $inner.field -width 10 -editable 0
1815	}
1816	bind $inner.field <<Value>> \
1817	[itcl::code $this AdjustSetting -field]
1818
1819	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1820	itk_component add colormap {
1821	Rappture::Combobox $inner.colormap -width 10 -editable 0
1822	}
1823	$inner.colormap choices insert end [GetColormapList]
1824
1825	$itk_component(colormap) value "BCGYR"
1826	bind $inner.colormap <<Value>> \
1827	[itcl::code $this AdjustSetting -colormap]
1828
1829	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1830	itk_component add numcontours {
1831	Rappture::Spinint $inner.numcontours \
1832	-min 0 -max 50 -font "arial 9"
1833	}
1834	$itk_component(numcontours) value $_settings(-numcontours)
1835	bind $itk_component(numcontours) <<Value>> \
1836	[itcl::code $this AdjustSetting -numcontours]
1837
1838
1839	# add widgets for setting a custom range on the legend
1840
1841	itk_component add crange {
1842	checkbutton $inner.crange \
1843	-text "Use Custom Range:" \
1844	-variable [itcl::scope _settings(-customrange)] \
1845	-command [itcl::code $this ToggleCustomRange] \
1846	-font "Arial 9"
1847	}
1848
1849	itk_component add l_min {
1850	label $inner.l_min -text "Min" -font "Arial 9"
1851	}
1852	itk_component add min {
1853	Rappture::Gauge $inner.min -font "Arial 9" \
1854	-validatecommand [itcl::code $this LegendRangeValidate "" vmin]
1855	}
1856	bind $itk_component(min) <<Value>> \
1857	[itcl::code $this AdjustSetting -range]
1858
1859	itk_component add l_max {
1860	label $inner.l_max -text "Max" -font "Arial 9"
1861	}
1862	itk_component add max {
1863	Rappture::Gauge $inner.max -font "Arial 9" \
1864	-validatecommand [itcl::code $this LegendRangeValidate "" vmax]
1865	}
1866	bind $itk_component(max) <<Value>> \
1867	[itcl::code $this AdjustSetting -range]
1868
1869	$itk_component(min) configure -state disabled
1870	$itk_component(max) configure -state disabled
1871
1872
1873	blt::table $inner \
1874	0,0 $inner.field_l -anchor w -pady 2 \
1875	0,1 $inner.field -anchor w -pady 2 -fill x \
1876	1,0 $inner.colormap_l -anchor w -pady 2 \
1877	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1878	2,0 $inner.linecolor_l -anchor w -pady 2 \
1879	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1880	3,0 $inner.background_l -anchor w -pady 2 \
1881	3,1 $inner.background -anchor w -pady 2 -fill x \
1882	4,0 $inner.numcontours_l -anchor w -pady 2 \
1883	4,1 $inner.numcontours -anchor w -pady 2 \
1884	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1885	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1886	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1887	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1888	9,0 $inner.legend -anchor w -pady 2 \
1889	10,0 $inner.opacity_l -anchor w -pady 2 \
1890	10,1 $inner.opacity -fill x -pady 2 -fill x \
1891	11,0 $inner.crange -anchor w -pady 2 -cspan 2 \
1892	12,0 $inner.l_min -anchor w -pady 2 \
1893	12,1 $inner.min -anchor w -pady 2 -fill x \
1894	13,0 $inner.l_max -anchor w -pady 2 \
1895	13,1 $inner.max -anchor w -pady 2 -fill x \
1896
1897	blt::table configure $inner r* c* -resize none
1898	blt::table configure $inner r14 c1 -resize expand
1899	}
1900
1901	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1902
1903	set fg [option get $itk_component(hull) font Font]
1904	#set bfg [option get $itk_component(hull) boldFont Font]
1905
1906	set inner [$itk_component(main) insert end \
1907	-title "Axis Settings" \
1908	-icon [Rappture::icon axis2]]
1909	$inner configure -borderwidth 4
1910
1911	checkbutton $inner.visible \
1912	-text "Axes" \
1913	-variable [itcl::scope _settings(-axesvisible)] \
1914	-command [itcl::code $this AdjustSetting -axesvisible] \
1915	-font "Arial 9"
1916
1917	checkbutton $inner.labels \
1918	-text "Axis Labels" \
1919	-variable [itcl::scope _settings(-axislabels)] \
1920	-command [itcl::code $this AdjustSetting -axislabels] \
1921	-font "Arial 9"
1922	label $inner.grid_l -text "Grid" -font "Arial 9"
1923	checkbutton $inner.xgrid \
1924	-text "X" \
1925	-variable [itcl::scope _settings(-xgrid)] \
1926	-command [itcl::code $this AdjustSetting -xgrid] \
1927	-font "Arial 9"
1928	checkbutton $inner.ygrid \
1929	-text "Y" \
1930	-variable [itcl::scope _settings(-ygrid)] \
1931	-command [itcl::code $this AdjustSetting -ygrid] \
1932	-font "Arial 9"
1933	checkbutton $inner.zgrid \
1934	-text "Z" \
1935	-variable [itcl::scope _settings(-zgrid)] \
1936	-command [itcl::code $this AdjustSetting -zgrid] \
1937	-font "Arial 9"
1938	checkbutton $inner.minorticks \
1939	-text "Minor Ticks" \
1940	-variable [itcl::scope _settings(-axisminorticks)] \
1941	-command [itcl::code $this AdjustSetting -axisminorticks] \
1942	-font "Arial 9"
1943
1944	label $inner.mode_l -text "Mode" -font "Arial 9"
1945
1946	itk_component add axisMode {
1947	Rappture::Combobox $inner.mode -width 10 -editable 0
1948	}
1949	$inner.mode choices insert end \
1950	"static_triad" "static" \
1951	"closest_triad" "closest" \
1952	"furthest_triad" "farthest" \
1953	"outer_edges" "outer"
1954	$itk_component(axisMode) value $_settings(-axismode)
1955	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1956
1957	blt::table $inner \
1958	0,0 $inner.visible -anchor w -cspan 4 \
1959	1,0 $inner.labels -anchor w -cspan 4 \
1960	2,0 $inner.minorticks -anchor w -cspan 4 \
1961	4,0 $inner.grid_l -anchor w \
1962	4,1 $inner.xgrid -anchor w \
1963	4,2 $inner.ygrid -anchor w \
1964	4,3 $inner.zgrid -anchor w \
1965	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1966	5,1 $inner.mode -fill x -cspan 3
1967
1968	blt::table configure $inner r* c* -resize none
1969	blt::table configure $inner r7 c6 -resize expand
1970	blt::table configure $inner r3 -height 0.125i
1971	}
1972
1973
1974	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1975	set inner [$itk_component(main) insert end \
1976	-title "Camera Settings" \
1977	-icon [Rappture::icon camera]]
1978	$inner configure -borderwidth 4
1979
1980	label $inner.view_l -text "view" -font "Arial 9"
1981	set f [frame $inner.view]
1982	foreach side { front back left right top bottom } {
1983	button $f.$side -image [Rappture::icon view$side] \
1984	-command [itcl::code $this SetOrientation $side]
1985	Rappture::Tooltip::for $f.$side "Change the view to $side"
1986	pack $f.$side -side left
1987	}
1988
1989	blt::table $inner \
1990	0,0 $inner.view_l -anchor e -pady 2 \
1991	0,1 $inner.view -anchor w -pady 2
1992	blt::table configure $inner r0 -resize none
1993
1994	set labels { qx qy qz qw xpan ypan zoom }
1995	set row 1
1996	foreach tag $labels {
1997	label $inner.${tag}label -text $tag -font "Arial 9"
1998	entry $inner.${tag} -font "Arial 9" -bg white \
1999	-textvariable [itcl::scope _view(-$tag)]
2000	bind $inner.${tag} <Return> \
2001	[itcl::code $this camera set -${tag}]
2002	bind $inner.${tag} <KP_Enter> \
2003	[itcl::code $this camera set -${tag}]
2004	blt::table $inner \
2005	$row,0 $inner.${tag}label -anchor e -pady 2 \
2006	$row,1 $inner.${tag} -anchor w -pady 2
2007	blt::table configure $inner r$row -resize none
2008	incr row
2009	}
2010	checkbutton $inner.ortho \
2011	-text "Orthographic Projection" \
2012	-variable [itcl::scope _view(-ortho)] \
2013	-command [itcl::code $this AdjustSetting -ortho] \
2014	-font "Arial 9"
2015	blt::table $inner \
2016	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2017	blt::table configure $inner r$row -resize none
2018	incr row
2019
2020	blt::table configure $inner c* -resize none
2021	blt::table configure $inner c2 -resize expand
2022	blt::table configure $inner r$row -resize expand
2023	}
2024
2025	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
2026
2027	set fg [option get $itk_component(hull) font Font]
2028
2029	set inner [$itk_component(main) insert end \
2030	-title "Cutplane Settings" \
2031	-icon [Rappture::icon cutbutton]]
2032
2033	$inner configure -borderwidth 4
2034
2035	checkbutton $inner.visible \
2036	-text "Cutplanes" \
2037	-variable [itcl::scope _settings(-cutplanesvisible)] \
2038	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2039	-font "Arial 9"
2040
2041	checkbutton $inner.wireframe \
2042	-text "Wireframe" \
2043	-variable [itcl::scope _settings(-cutplanewireframe)] \
2044	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
2045	-font "Arial 9"
2046
2047	checkbutton $inner.lighting \
2048	-text "Enable Lighting" \
2049	-variable [itcl::scope _settings(-cutplanelighting)] \
2050	-command [itcl::code $this AdjustSetting -cutplanelighting] \
2051	-font "Arial 9"
2052
2053	checkbutton $inner.edges \
2054	-text "Edges" \
2055	-variable [itcl::scope _settings(-cutplaneedges)] \
2056	-command [itcl::code $this AdjustSetting -cutplaneedges] \
2057	-font "Arial 9"
2058
2059	checkbutton $inner.preinterp \
2060	-text "Interpolate Scalars" \
2061	-variable [itcl::scope _settings(-cutplanepreinterp)] \
2062	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
2063	-font "Arial 9"
2064
2065	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2066	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2067	-variable [itcl::scope _widget(-cutplaneopacity)] \
2068	-width 10 \
2069	-showvalue off \
2070	-command [itcl::code $this AdjustSetting -cutplaneopacity]
2071	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
2072
2073	# X-value slicer...
2074	itk_component add xbutton {
2075	Rappture::PushButton $inner.xbutton \
2076	-onimage [Rappture::icon x-cutplane-red] \
2077	-offimage [Rappture::icon x-cutplane-red] \
2078	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2079	-variable [itcl::scope _settings(-xcutplanevisible)] \
2080	}
2081	Rappture::Tooltip::for $itk_component(xbutton) \
2082	"Toggle the X-axis cutplane on/off"
2083	$itk_component(xbutton) select
2084	itk_component add xposition {
2085	::scale $inner.xval -from 100 -to 0 \
2086	-width 10 -orient vertical -showvalue 1 \
2087	-borderwidth 1 -highlightthickness 0 \
2088	-command [itcl::code $this EventuallySetCutplane x] \
2089	-variable [itcl::scope _settings(-xcutplaneposition)] \
2090	-foreground red2 -font "Arial 9 bold"
2091	} {
2092	usual
2093	ignore -borderwidth -highlightthickness -foreground -font -background
2094	}
2095	# Set the default cutplane value before disabling the scale.
2096	$itk_component(xposition) set 50
2097	$itk_component(xposition) configure -state disabled
2098	Rappture::Tooltip::for $itk_component(xposition) \
2099	"@[itcl::code $this Slice tooltip x]"
2100
2101	# Y-value slicer...
2102	itk_component add ybutton {
2103	Rappture::PushButton $inner.ybutton \
2104	-onimage [Rappture::icon y-cutplane-green] \
2105	-offimage [Rappture::icon y-cutplane-green] \
2106	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2107	-variable [itcl::scope _settings(-ycutplanevisible)] \
2108	}
2109	Rappture::Tooltip::for $itk_component(ybutton) \
2110	"Toggle the Y-axis cutplane on/off"
2111	$itk_component(ybutton) select
2112
2113	itk_component add yposition {
2114	::scale $inner.yval -from 100 -to 0 \
2115	-width 10 -orient vertical -showvalue 1 \
2116	-borderwidth 1 -highlightthickness 0 \
2117	-command [itcl::code $this EventuallySetCutplane y] \
2118	-variable [itcl::scope _settings(-ycutplaneposition)] \
2119	-foreground green3 -font "Arial 9 bold"
2120	} {
2121	usual
2122	ignore -borderwidth -highlightthickness -foreground -font
2123	}
2124	Rappture::Tooltip::for $itk_component(yposition) \
2125	"@[itcl::code $this Slice tooltip y]"
2126	# Set the default cutplane value before disabling the scale.
2127	$itk_component(yposition) set 50
2128	$itk_component(yposition) configure -state disabled
2129
2130	# Z-value slicer...
2131	itk_component add zbutton {
2132	Rappture::PushButton $inner.zbutton \
2133	-onimage [Rappture::icon z-cutplane-blue] \
2134	-offimage [Rappture::icon z-cutplane-blue] \
2135	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2136	-variable [itcl::scope _settings(-zcutplanevisible)] \
2137	} {
2138	usual
2139	ignore -foreground
2140	}
2141	Rappture::Tooltip::for $itk_component(zbutton) \
2142	"Toggle the Z-axis cutplane on/off"
2143	$itk_component(zbutton) select
2144
2145	itk_component add zposition {
2146	::scale $inner.zval -from 100 -to 0 \
2147	-width 10 -orient vertical -showvalue 1 \
2148	-borderwidth 1 -highlightthickness 0 \
2149	-command [itcl::code $this EventuallySetCutplane z] \
2150	-variable [itcl::scope _settings(-zcutplaneposition)] \
2151	-foreground blue3 -font "Arial 9 bold"
2152	} {
2153	usual
2154	ignore -borderwidth -highlightthickness -foreground -font
2155	}
2156	$itk_component(zposition) set 50
2157	$itk_component(zposition) configure -state disabled
2158	Rappture::Tooltip::for $itk_component(zposition) \
2159	"@[itcl::code $this Slice tooltip z]"
2160
2161	blt::table $inner \
2162	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2163	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2164	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2165	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2166	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2167	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2168	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2169	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2170	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2171	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2172	6,1 $inner.xval -fill y -rspan 4 \
2173	6,2 $inner.yval -fill y -rspan 4 \
2174	6,3 $inner.zval -fill y -rspan 4 \
2175
2176
2177	blt::table configure $inner r* c* -resize none
2178	blt::table configure $inner r9 c4 -resize expand
2179	}
2180
2181	#
2182	# camera --
2183	#
2184	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2185	switch -- $option {
2186	"show" {
2187	puts [array get _view]
2188	}
2189	"set" {
2190	set what [lindex $args 0]
2191	set x $_view($what)
2192	set code [catch { string is double $x } result]
2193	if { $code != 0 \|\| !$result } {
2194	return
2195	}
2196	switch -- $what {
2197	"-ortho" {
2198	if {$_view($what)} {
2199	SendCmd "camera mode ortho"
2200	} else {
2201	SendCmd "camera mode persp"
2202	}
2203	}
2204	"-xpan" - "-ypan" {
2205	PanCamera
2206	}
2207	"-qx" - "-qy" - "-qz" - "-qw" {
2208	set q [ViewToQuaternion]
2209	$_arcball quaternion $q
2210	EventuallyRotate $q
2211	}
2212	"-zoom" {
2213	SendCmd "camera zoom $_view($what)"
2214	}
2215	}
2216	}
2217	}
2218	}
2219
2220	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2221	set bytes ""
2222	foreach dataobj [get] {
2223	foreach cname [$dataobj components] {
2224	set tag $dataobj-$cname
2225	set contents [$dataobj vtkdata $cname]
2226	append bytes "$contents\n"
2227	}
2228	}
2229	return [list .vtk $bytes]
2230	}
2231
2232	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2233	if { [image width $_image(download)] > 0 &&
2234	[image height $_image(download)] > 0 } {
2235	set bytes [$_image(download) data -format "jpeg -quality 100"]
2236	set bytes [Rappture::encoding::decode -as b64 $bytes]
2237	return [list .jpg $bytes]
2238	}
2239	return ""
2240	}
2241
2242	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2243	Rappture::Balloon $popup \
2244	-title "[Rappture::filexfer::label downloadWord] as..."
2245	set inner [$popup component inner]
2246	label $inner.summary -text "" -anchor w
2247	radiobutton $inner.vtk_button -text "VTK data file" \
2248	-variable [itcl::scope _downloadPopup(format)] \
2249	-font "Arial 9 " \
2250	-value vtk
2251	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2252	radiobutton $inner.image_button -text "Image File" \
2253	-variable [itcl::scope _downloadPopup(format)] \
2254	-font "Arial 9 " \
2255	-value image
2256	Rappture::Tooltip::for $inner.image_button \
2257	"Save as digital image."
2258
2259	button $inner.ok -text "Save" \
2260	-highlightthickness 0 -pady 2 -padx 3 \
2261	-command $command \
2262	-compound left \
2263	-image [Rappture::icon download]
2264
2265	button $inner.cancel -text "Cancel" \
2266	-highlightthickness 0 -pady 2 -padx 3 \
2267	-command [list $popup deactivate] \
2268	-compound left \
2269	-image [Rappture::icon cancel]
2270
2271	blt::table $inner \
2272	0,0 $inner.summary -cspan 2 \
2273	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2274	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2275	4,1 $inner.cancel -width .9i -fill y \
2276	4,0 $inner.ok -padx 2 -width .9i -fill y
2277	blt::table configure $inner r3 -height 4
2278	blt::table configure $inner r4 -pady 4
2279	raise $inner.image_button
2280	$inner.vtk_button invoke
2281	return $inner
2282	}
2283
2284	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2285	# Parse style string.
2286	set tag $dataobj-$comp
2287	array set style {
2288	-color BCGYR
2289	-cutplaneedges 0
2290	-cutplanelighting 1
2291	-cutplaneopacity 1.0
2292	-cutplanepreinterp 1
2293	-cutplanesvisible 0
2294	-cutplanewireframe 0
2295	-edgecolor black
2296	-edges 0
2297	-isosurfacevisible 1
2298	-levels 10
2299	-lighting 1
2300	-linewidth 1.0
2301	-opacity 0.6
2302	-outline 0
2303	-wireframe 0
2304	-xcutplaneposition 50
2305	-xcutplanevisible 1
2306	-ycutplaneposition 50
2307	-ycutplanevisible 1
2308	-zcutplaneposition 50
2309	-zcutplanevisible 1
2310	}
2311	array set style [$dataobj style $comp]
2312	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2313	set style(-opacity) 1.0
2314	}
2315
2316	# This is too complicated. We want to set the colormap, number of
2317	# isolines and opacity for the dataset. They can be the default values,
2318	# the style hints loaded with the dataset, or set by user controls. As
2319	# datasets get loaded, they first use the defaults that are overidden
2320	# by the style hints. If the user changes the global controls, then that
2321	# overrides everything else. I don't know what it means when global
2322	# controls are specified as style hints by each dataset. It complicates
2323	# the code to handle aberrant cases.
2324
2325	if { $_changed(-isosurfaceedges) } {
2326	set style(-edges) $_settings(-isosurfaceedges)
2327	}
2328	if { $_changed(-isosurfacelighting) } {
2329	set style(-lighting) $_settings(-isosurfacelighting)
2330	}
2331	if { $_changed(-isosurfaceopacity) } {
2332	set style(-opacity) $_settings(-isosurfaceopacity)
2333	}
2334	if { $_changed(-isosurfacewireframe) } {
2335	set style(-wireframe) $_settings(-isosurfacewireframe)
2336	}
2337	if { $_changed(-numcontours) } {
2338	set style(-levels) $_settings(-numcontours)
2339	}
2340	if { $_changed(-colormap) } {
2341	set style(-color) $_settings(-colormap)
2342	}
2343	if { $_currentColormap == "" } {
2344	SetCurrentColormap $style(-color)
2345	$itk_component(colormap) value $style(-color)
2346	}
2347	if { $_contourList(numLevels) != $style(-levels) } {
2348	if { [llength $style(-levels)] > 1 } {
2349	set _contourList(reqValues) [lsort -real $style(-levels)]
2350	} else {
2351	set _settings(-numcontours) $style(-levels)
2352	$itk_component(numcontours) value $style(-levels)
2353	set _contourList(numLevels) $style(-levels)
2354	}
2355	EventuallyChangeContourLevels
2356	}
2357	foreach setting {-outline -isosurfacevisible -cutplanesvisible \
2358	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
2359	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
2360	-cutplaneedges -cutplanelighting -cutplaneopacity \
2361	-cutplanepreinterp -cutplanewireframe} {
2362	if {$_changed($setting)} {
2363	# User-modified UI setting overrides style
2364	set style($setting) $_settings($setting)
2365	} else {
2366	# Set UI control to style setting (tool provided or default)
2367	set _settings($setting) $style($setting)
2368	}
2369	}
2370
2371	SendCmd "cutplane add $tag"
2372	SendCmd "cutplane color [Color2RGB $itk_option(-plotforeground)] $tag"
2373	foreach axis {x y z} {
2374	set pos [expr $style(-${axis}cutplaneposition) * 0.01]
2375	set visible $style(-${axis}cutplanevisible)
2376	SendCmd "cutplane slice $axis $pos $tag"
2377	SendCmd "cutplane axis $axis $visible $tag"
2378	}
2379	SendCmd "cutplane edges $style(-cutplaneedges) $tag"
2380	SendCmd "cutplane lighting $style(-cutplanelighting) $tag"
2381	SendCmd "cutplane opacity $style(-cutplaneopacity) $tag"
2382	SendCmd "cutplane preinterp $style(-cutplanepreinterp) $tag"
2383	SendCmd "cutplane wireframe $style(-cutplanewireframe) $tag"
2384	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2385
2386	SendCmd "outline add $tag"
2387	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2388	SendCmd "outline visible $style(-outline) $tag"
2389
2390	GenerateContourList
2391	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2392	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2393	SendCmd "contour3d edges $style(-edges) $tag"
2394	set _settings(-isosurfaceedges) $style(-edges)
2395	#SendCmd "contour3d color [Color2RGB $style(-color)] $tag"
2396	SendCmd "contour3d lighting $style(-lighting) $tag"
2397	set _settings(-isosurfacelighting) $style(-lighting)
2398	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2399	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2400	SendCmd "contour3d opacity $style(-opacity) $tag"
2401	set _settings(-isosurfaceopacity) $style(-opacity)
2402	SetCurrentColormap $style(-color)
2403	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2404	set _settings(-isosurfacewireframe) $style(-wireframe)
2405	}
2406
2407	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2408	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2409	return 0
2410	}
2411	return 1
2412	}
2413
2414	#
2415	# EnterLegend --
2416	#
2417	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2418	SetLegendTip $x $y
2419	}
2420
2421	#
2422	# MotionLegend --
2423	#
2424	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2425	Rappture::Tooltip::tooltip cancel
2426	set c $itk_component(view)
2427	set cw [winfo width $c]
2428	set ch [winfo height $c]
2429	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2430	SetLegendTip $x $y
2431	}
2432	}
2433
2434	#
2435	# LeaveLegend --
2436	#
2437	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2438	Rappture::Tooltip::tooltip cancel
2439	.rappturetooltip configure -icon ""
2440	}
2441
2442	# ----------------------------------------------------------------------
2443	# USAGE: LegendB1Motion press <x> <y>
2444	# USAGE: LegendB1Motion motion <x> <y>
2445	# USAGE: LegendB1Motion release <x> <y>
2446	#
2447	# Manage actions for Button 1 presses that happen over the legend.
2448	# Pressing mouse Button 1 on the legend sends a command to the
2449	# visualization server to show a specific isosurface.
2450	# ----------------------------------------------------------------------
2451	itcl::body Rappture::VtkIsosurfaceViewer::LegendB1Motion { status x y } {
2452
2453	switch -- $status {
2454	"press" {
2455	DisableMouseRotationBindings
2456	LegendProbeSingleContour $x $y
2457	}
2458	"motion" {
2459	DisableMouseRotationBindings
2460	LegendProbeSingleContour $x $y
2461	}
2462	"release" {
2463	AdjustSetting -range
2464	SetupMouseRotationBindings
2465	}
2466	default {
2467	error "bad option \"$option\": should be one of press, motion, release."
2468	}
2469	}
2470	}
2471
2472	# ----------------------------------------------------------------------
2473	# USAGE: LegendPointToValue <x> <y>
2474	#
2475	# Convert an x,y point on the legend to a numeric isosurface value.
2476	# ----------------------------------------------------------------------
2477	itcl::body Rappture::VtkIsosurfaceViewer::LegendPointToValue { x y } {
2478
2479	set fname $_curFldName
2480
2481	set font "Arial 8"
2482	set lineht [font metrics $font -linespace]
2483
2484	set ih [image height $_image(legend)]
2485	set iy [expr $y - ($lineht + 2)]
2486
2487	# Compute the value of the point
2488	if { [info exists _limits($fname)] } {
2489	if { $_settings(-customrange) } {
2490	set vmin [$itk_component(min) value]
2491	set vmax [$itk_component(max) value]
2492	} else {
2493	foreach { vmin vmax } $_limits($fname) break
2494	}
2495	set t [expr 1.0 - (double($iy) / double($ih-1))]
2496	set value [expr $t * ($vmax - $vmin) + $vmin]
2497	} else {
2498	set value 0.0
2499	}
2500	return $value
2501	}
2502
2503	# ----------------------------------------------------------------------
2504	# USAGE: LegendProbeSingleContour <x> <y>
2505	#
2506	# Calculate the isosurface value for the x,y point and send a commands
2507	# to the visualization server to show that isosurface.
2508	# ----------------------------------------------------------------------
2509	itcl::body Rappture::VtkIsosurfaceViewer::LegendProbeSingleContour { x y } {
2510
2511	set value [LegendPointToValue $x $y]
2512	SendCmd [list contour3d contourlist $value]
2513	}
2514
2515	#
2516	# SetLegendTip --
2517	#
2518	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2519	set fname $_curFldName
2520	set c $itk_component(view)
2521	set w [winfo width $c]
2522	set h [winfo height $c]
2523
2524	set font "Arial 8"
2525	set lineht [font metrics $font -linespace]
2526
2527	set ih [image height $_image(legend)]
2528	set iy [expr $y - ($lineht + 2)]
2529
2530	if { [string match "component*" $fname] } {
2531	set title ""
2532	} else {
2533	if { [info exists _fields($fname)] } {
2534	foreach { title units } $_fields($fname) break
2535	if { $units != "" } {
2536	set title [format "%s (%s)" $title $units]
2537	}
2538	} else {
2539	set title $fname
2540	}
2541	}
2542	# If there's a legend title, increase the offset by the line height.
2543	if { $title != "" } {
2544	incr iy -$lineht
2545	}
2546	# Make a swatch of the selected color
2547	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2548	return
2549	}
2550	if { ![info exists _image(swatch)] } {
2551	set _image(swatch) [image create photo -width 24 -height 24]
2552	}
2553	set color [eval format "\#%02x%02x%02x" $pixel]
2554	$_image(swatch) put black -to 0 0 23 23
2555	$_image(swatch) put $color -to 1 1 22 22
2556	.rappturetooltip configure -icon $_image(swatch)
2557
2558	# Compute the value of the point
2559	set value [LegendPointToValue $x $y]
2560
2561	# Setup the location of the tooltip
2562	set tx [expr $x + 15]
2563	set ty [expr $y - 5]
2564
2565	# Setup the text for the tooltip
2566	if { [info exists _isolines($y)] } {
2567	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2568	} else {
2569	Rappture::Tooltip::text $c [format "$title %g" $value]
2570	}
2571
2572	# Show the tooltip
2573	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2574	}
2575
2576	# ----------------------------------------------------------------------
2577	# USAGE: Slice move x\|y\|z <newval>
2578	#
2579	# Called automatically when the user drags the slider to move the
2580	# cut plane that slices 3D data. Gets the current value from the
2581	# slider and moves the cut plane to the appropriate point in the
2582	# data set.
2583	# ----------------------------------------------------------------------
2584	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2585	switch -- $option {
2586	"move" {
2587	set axis [lindex $args 0]
2588	set newval [lindex $args 1]
2589	if {[llength $args] != 2} {
2590	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2591	}
2592	set newpos [expr {0.01*$newval}]
2593	SendCmd "cutplane slice $axis $newpos"
2594	}
2595	"tooltip" {
2596	set axis [lindex $args 0]
2597	set val [$itk_component(${axis}position) get]
2598	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2599	}
2600	default {
2601	error "bad option \"$option\": should be axis, move, or tooltip"
2602	}
2603	}
2604	}
2605
2606	#
2607	# ReceiveLegend --
2608	#
2609	# Invoked automatically whenever the "legend" command comes in from
2610	# the rendering server. Indicates that binary image data with the
2611	# specified <size> will follow.
2612	#
2613	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2614	# puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2615	set _title $title
2616	regsub {\(mag\)} $title "" _title
2617	if { [IsConnected] } {
2618	set bytes [ReceiveBytes $size]
2619	if { ![info exists _image(legend)] } {
2620	set _image(legend) [image create photo]
2621	}
2622	$_image(legend) configure -data $bytes
2623	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2624	if { [catch {DrawLegend} errs] != 0 } {
2625	global errorInfo
2626	puts stderr "errs=$errs errorInfo=$errorInfo"
2627	}
2628	}
2629	}
2630
2631	#
2632	# DrawLegend --
2633	#
2634	# Draws the legend on the canvas on the right side of the plot area.
2635	#
2636	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2637	set fname $_curFldName
2638	set c $itk_component(view)
2639	set w [winfo width $c]
2640	set h [winfo height $c]
2641	set font "Arial 8"
2642	set lineht [font metrics $font -linespace]
2643
2644	if { [string match "component*" $fname] } {
2645	set title ""
2646	} else {
2647	if { [info exists _fields($fname)] } {
2648	foreach { title units } $_fields($fname) break
2649	if { $units != "" } {
2650	set title [format "%s (%s)" $title $units]
2651	}
2652	} else {
2653	set title $fname
2654	}
2655	}
2656	set x [expr $w - 2]
2657	if { !$_settings(-legendvisible) } {
2658	$c delete legend
2659	return
2660	}
2661	if { [$c find withtag "legend"] == "" } {
2662	set y 2
2663	# If there's a legend title, create a text item for the title.
2664	$c create text $x $y \
2665	-anchor ne \
2666	-fill $itk_option(-plotforeground) -tags "title legend" \
2667	-font $font
2668	if { $title != "" } {
2669	incr y $lineht
2670	}
2671	$c create text $x $y \
2672	-anchor ne \
2673	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2674	-font $font
2675	incr y $lineht
2676	$c create image $x $y \
2677	-anchor ne \
2678	-image $_image(legend) -tags "colormap legend"
2679	$c create rectangle $x $y 1 1 \
2680	-fill "" -outline "" -tags "sensor legend"
2681	$c create text $x [expr {$h-2}] \
2682	-anchor se \
2683	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2684	-font $font
2685	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2686	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2687	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2688	# $c bind sensor <ButtonPress-1> [itcl::code $this LegendB1Motion press %x %y]
2689	# $c bind sensor <B1-Motion> [itcl::code $this LegendB1Motion motion %x %y]
2690	# $c bind sensor <ButtonRelease-1> [itcl::code $this LegendB1Motion release %x %y]
2691
2692	}
2693	$c delete isoline
2694	set x2 $x
2695	set iw [image width $_image(legend)]
2696	set ih [image height $_image(legend)]
2697	set x1 [expr $x2 - ($iw*12)/10]
2698	set color $_settings(-isolinecolor)
2699	# Draw the isolines on the legend.
2700	array unset _isolines
2701	if { $color != "none" && [info exists _limits($_curFldName)] &&
2702	$_settings(-numcontours) > 0 } {
2703
2704	if { $_settings(-customrange) } {
2705	set vmin [$itk_component(min) value]
2706	set vmax [$itk_component(max) value]
2707	} else {
2708	foreach { vmin vmax } $_limits($_curFldName) break
2709	}
2710	set range [expr double($vmax - $vmin)]
2711	if { $range <= 0.0 } {
2712	set range 1.0; # Min is greater or equal to max.
2713	}
2714	set tags "isoline legend"
2715	set offset [expr 2 + $lineht]
2716	if { $title != "" } {
2717	incr offset $lineht
2718	}
2719	foreach value $_contourList(values) {
2720	set norm [expr 1.0 - (($value - $vmin) / $range)]
2721	set y1 [expr int(round(($norm * $ih) + $offset))]
2722	for { set off 0 } { $off < 3 } { incr off } {
2723	set _isolines([expr $y1 + $off]) $value
2724	set _isolines([expr $y1 - $off]) $value
2725	}
2726	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2727	}
2728	}
2729
2730	$c bind title <ButtonPress> [itcl::code $this LegendTitleAction post]
2731	$c bind title <Enter> [itcl::code $this LegendTitleAction enter]
2732	$c bind title <Leave> [itcl::code $this LegendTitleAction leave]
2733	# Reset the item coordinates according the current size of the plot.
2734	$c itemconfigure title -text $title
2735	if { [info exists _limits($_curFldName)] } {
2736	if { $_settings(-customrange) } {
2737	set vmin [$itk_component(min) value]
2738	set vmax [$itk_component(max) value]
2739	} else {
2740	foreach { vmin vmax } $_limits($_curFldName) break
2741	}
2742	$c itemconfigure vmin -text [format %g $vmin]
2743	$c itemconfigure vmax -text [format %g $vmax]
2744	}
2745	set y 2
2746	# If there's a legend title, move the title to the correct position
2747	if { $title != "" } {
2748	$c itemconfigure title -text $title
2749	$c coords title $x $y
2750	incr y $lineht
2751	$c raise title
2752	}
2753	$c coords vmax $x $y
2754	incr y $lineht
2755	$c coords colormap $x $y
2756	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2757	$c raise sensor
2758	$c coords vmin $x [expr {$h - 2}]
2759
2760	$c bind vmin <ButtonPress> [itcl::code $this LegendRangeAction popup vmin]
2761	$c bind vmin <Enter> [itcl::code $this LegendRangeAction enter vmin]
2762	$c bind vmin <Leave> [itcl::code $this LegendRangeAction leave vmin]
2763
2764	$c bind vmax <ButtonPress> [itcl::code $this LegendRangeAction popup vmax]
2765	$c bind vmax <Enter> [itcl::code $this LegendRangeAction enter vmax]
2766	$c bind vmax <Leave> [itcl::code $this LegendRangeAction leave vmax]
2767	}
2768
2769	# ----------------------------------------------------------------------
2770	# USAGE: LegendTitleAction post
2771	# USAGE: LegendTitleAction enter
2772	# USAGE: LegendTitleAction leave
2773	# USAGE: LegendTitleAction save
2774	#
2775	# Used internally to handle the dropdown list for the fields menu combobox.
2776	# The post option is invoked when the field title is pressed to launch the
2777	# dropdown. The enter option is invoked when the user mouses over the field
2778	# title. The leave option is invoked when the user moves the mouse away
2779	# from the field title. The save option is invoked whenever there is a
2780	# selection from the list, to alert the visualization server.
2781	#
2782	# ----------------------------------------------------------------------
2783	itcl::body Rappture::VtkIsosurfaceViewer::LegendTitleAction {option} {
2784	set c $itk_component(view)
2785	switch -- $option {
2786	post {
2787	foreach { x1 y1 x2 y2 } [$c bbox title] break
2788	set cw [winfo width $itk_component(view)]
2789	set mw [winfo reqwidth $itk_component(fieldmenu)]
2790	set x1 [expr $cw - $mw]
2791	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2792	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2793	tk_popup $itk_component(fieldmenu) $x $y
2794	}
2795	enter {
2796	$c itemconfigure title -fill red
2797	}
2798	leave {
2799	$c itemconfigure title -fill $itk_option(-plotforeground)
2800	}
2801	save {
2802	$itk_component(field) value $_curFldLabel
2803	AdjustSetting -field
2804	}
2805	default {
2806	error "bad option \"$option\": should be post, enter, leave, save"
2807	}
2808	}
2809	}
2810
2811	# ----------------------------------------------------------------------
2812	# USAGE: LegendRangeValidate <widget> <which> <value>
2813	#
2814	# Used internally to validate a legend range min/max value.
2815	# Returns a boolean value telling if <value> was accepted (1) or rejected (0)
2816	# If the value is rejected, a tooltip/warning message is popped up
2817	# near the widget that asked for the validation, specified by <widget>
2818	#
2819	# <widget> is the widget where a tooltip/warning message should show up on
2820	# <which> is either "vmin" or "vmax".
2821	# <value> is the value to be validated.
2822	#
2823	# ----------------------------------------------------------------------
2824	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeValidate {widget which value} {
2825
2826	#check for a valid value
2827	if {[string is double $value] != 1} {
2828	set msg "should be valid number"
2829	if {$widget != ""} {
2830	Rappture::Tooltip::cue $widget $msg
2831	} else {
2832	# error "bad value \"$value\": $msg"
2833	error $msg
2834	}
2835	return 0
2836	}
2837
2838	switch -- $which {
2839	vmin {
2840	# check for min > max
2841	if {$value > [$itk_component(max) value]} {
2842	set msg "min > max, change max first"
2843	if {$widget != ""} {
2844	Rappture::Tooltip::cue $widget $msg
2845	} else {
2846	# error "bad value \"$value\": $msg"
2847	error $msg
2848	}
2849	return 0
2850	}
2851	}
2852	vmax {
2853	# check for max < min
2854	if {$value < [$itk_component(min) value]} {
2855	set msg "max < min, change min first"
2856	if {$widget != ""} {
2857	Rappture::Tooltip::cue $widget $msg
2858	} else {
2859	# error "bad value \"$value\": $msg"
2860	error $msg
2861	}
2862	return 0
2863	}
2864	}
2865	default {
2866	error "bad option \"$which\": should be vmin, vmax"
2867	}
2868	}
2869	}
2870
2871	itcl::body Rappture::VtkIsosurfaceViewer::MouseOver2Which {} {
2872	switch -- $_mouseOver {
2873	vmin {
2874	set which min
2875	}
2876	vmax {
2877	set which max
2878	}
2879	default {
2880	error "bad _mouseOver \"$_mouseOver\": should be vmin, vmax"
2881	}
2882	}
2883	return $which
2884	}
2885
2886	# ----------------------------------------------------------------------
2887	# USAGE: LegendRangeAction enter <which>
2888	# USAGE: LegendRangeAction leave <which>
2889	#
2890	# USAGE: LegendRangeAction popup <which>
2891	# USAGE: LegendRangeAction activate
2892	# USAGE: LegendRangeAction validate <value>
2893	# USAGE: LegendRangeAction apply <value>
2894	#
2895	# Used internally to handle the mouseover and popup entry for the field range
2896	# inputs. The enter option is invoked when the user moves the mouse over the
2897	# min or max field range. The leave option is invoked when the user moves the
2898	# mouse away from the min or max field range. The popup option is invoked when
2899	# the user click's on a field range. The popup option stores internally which
2900	# widget is requesting a popup ( in the _mouseOver variable) and calls the
2901	# activate command of the widget. The widget's activate command calls back to
2902	# this method to get the xywh dimensions of the popup editor. After the user
2903	# changes focus or sets the value in the editor, the editor calls this methods
2904	# validate and apply options to set the value.
2905	#
2906	# ----------------------------------------------------------------------
2907	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeAction {option args} {
2908	set c $itk_component(view)
2909
2910	switch -- $option {
2911	enter {
2912	set which [lindex $args 0]
2913	$c itemconfigure $which -fill red
2914	}
2915	leave {
2916	set which [lindex $args 0]
2917	$c itemconfigure $which -fill $itk_option(-plotforeground)
2918	}
2919	popup {
2920	DisableMouseRotationBindings
2921	set which [lindex $args 0]
2922	set _mouseOver $which
2923	$itk_component(editor) activate
2924	}
2925	activate {
2926	foreach { x1 y1 x2 y2 } [$c bbox $_mouseOver] break
2927	set which [MouseOver2Which]
2928	set info(text) [$itk_component($which) value]
2929	set info(x) [expr $x1 + [winfo rootx $c]]
2930	set info(y) [expr $y1 + [winfo rooty $c]]
2931	set info(w) [expr $x2 - $x1]
2932	set info(h) [expr $y2 - $y1]
2933	return [array get info]
2934	}
2935	validate {
2936	if {[llength $args] != 1} {
2937	error "wrong # args: should be \"editor validate value\""
2938	}
2939
2940	set value [lindex $args 0]
2941	if {[LegendRangeValidate $itk_component(editor) $_mouseOver $value] == 0} {
2942	return 0
2943	}
2944
2945	# value was good, apply it
2946	# reset the mouse rotation bindings
2947	SetupMouseRotationBindings
2948	}
2949	apply {
2950	if {[llength $args] != 1} {
2951	error "wrong # args: should be \"editor apply value\""
2952	}
2953	set value [string trim [lindex $args 0]]
2954
2955	set which [MouseOver2Which]
2956
2957	# only set custom range if value changed
2958	if {[$itk_component($which) value] != $value} {
2959	# set the flag stating the custom range came from the legend
2960	# change the value in the gauge
2961	# turn on crange to enable the labels and gauges
2962	# call AdjustSetting -range (inside ToggleCustomRange)
2963	# to update drawing and legend
2964	set _customRangeClick 0
2965	$itk_component($which) value $value
2966	$itk_component(crange) select
2967	ToggleCustomRange
2968	}
2969	}
2970	default {
2971	error "bad option \"$option\": should be enter, leave, activate, validate, apply"
2972	}
2973	}
2974	}
2975
2976	# ----------------------------------------------------------------------
2977	# USAGE: ToggleCustomRange
2978	#
2979	# Called whenever the custom range is turned on or off. Used to save
2980	# the custom min and custom max set by the user. When the -customrange
2981	# setting is turned on, the range min and range max gauges are set
2982	# with the last value set by the user, or the default range if no
2983	# previous min and max were set.
2984	#
2985	# When the custom range is turned on, we check how it was turned on
2986	# by querying _customRangeClick. If the variable is 1, this means
2987	# the user clicked the crange checkbutton and we should pull the
2988	# custom range values from our backup variables. If the variable is 0,
2989	# the custom range was enabled through the user manipulating the
2990	# min and max value in the legend.
2991	#
2992	# ----------------------------------------------------------------------
2993	itcl::body Rappture::VtkIsosurfaceViewer::ToggleCustomRange {args} {
2994	if { ! $_settings(-customrange) } {
2995	# custom range was turned off
2996
2997	# disable the min/max labels and gauge widgets
2998	$itk_component(l_min) configure -state disabled
2999	$itk_component(min) configure -state disabled
3000	$itk_component(l_max) configure -state disabled
3001	$itk_component(max) configure -state disabled
3002
3003	# backup the custom range
3004	set _settings(-customrangemin) [$itk_component(min) value]
3005	set _settings(-customrangemax) [$itk_component(max) value]
3006
3007	# set the gauges to dataset's min and max
3008	foreach { vmin vmax } $_limits($_curFldName) break
3009	SetMinMaxGauges $vmin $vmax
3010	} else {
3011	# custom range was turned on
3012
3013	# enable the min/max labels and gauge widgets
3014	$itk_component(l_min) configure -state normal
3015	$itk_component(min) configure -state normal
3016	$itk_component(l_max) configure -state normal
3017	$itk_component(max) configure -state normal
3018
3019	# if the custom range is being turned on by clicking the
3020	# checkbox, restore the min and max gauges from the backup
3021	# variables. otherwise, new values for the min and max
3022	# widgets will be set later from the legend's editor.
3023	if { $_customRangeClick } {
3024	SetMinMaxGauges $_settings(-customrangemin) $_settings(-customrangemax)
3025	}
3026
3027	# reset the click flag
3028	set _customRangeClick 1
3029	}
3030	AdjustSetting -range
3031	}
3032
3033	# ----------------------------------------------------------------------
3034	# USAGE: SetMinMaxGauges <min> <max>
3035	#
3036	# Set the min and max gauges in the correct order, avoiding the
3037	# error where you try to set the min > max before updating the max or
3038	# set the max < min before updating the min.
3039	#
3040	# There are five range cases to consider with our current range validation.
3041	# For example:
3042	# [2,3] -> [0,1] : update min first, max last
3043	# [2,3] -> [4,5] : update max first, min last
3044	# [2,3] -> [0,2.5] : update min or max first
3045	# [2,3] -> [2.5,5] : update min or max first
3046	# [2,3] -> [2.25,2.75] : update min or max first
3047	#
3048	# In 4 of the cases we can update min first and max last, so we only
3049	# need to check the case where old max < new min, where we update
3050	# max first and min last.
3051	# ----------------------------------------------------------------------
3052	itcl::body Rappture::VtkIsosurfaceViewer::SetMinMaxGauges {min max} {
3053
3054	if { [$itk_component(max) value] < $min} {
3055	# old max < new min
3056	# shift range toward right
3057	# extend max first, then update min
3058	$itk_component(max) value $max
3059	$itk_component(min) value $min
3060	} else {
3061	# extend min first, then update max
3062	$itk_component(min) value $min
3063	$itk_component(max) value $max
3064	}
3065	}
3066
3067	#
3068	# SetCurrentColormap --
3069	#
3070	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
3071	# Keep track of the colormaps that we build.
3072	if { ![info exists _colormaps($name)] } {
3073	BuildColormap $name
3074	set _colormaps($name) 1
3075	}
3076	set _currentColormap $name
3077	SendCmd "contour3d colormap $_currentColormap"
3078	SendCmd "cutplane colormap $_currentColormap"
3079	}
3080
3081	#
3082	# BuildColormap --
3083	#
3084	# Build the designated colormap on the server.
3085	#
3086	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
3087	set cmap [ColorsToColormap $name]
3088	if { [llength $cmap] == 0 } {
3089	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
3090	}
3091	set wmap "0.0 1.0 1.0 1.0"
3092	SendCmd "colormap add $name { $cmap } { $wmap }"
3093	}
3094
3095	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
3096	array set positions {
3097	front "1 0 0 0"
3098	back "0 0 1 0"
3099	left "0.707107 0 -0.707107 0"
3100	right "0.707107 0 0.707107 0"
3101	top "0.707107 -0.707107 0 0"
3102	bottom "0.707107 0.707107 0 0"
3103	}
3104	foreach name { -qw -qx -qy -qz } value $positions($side) {
3105	set _view($name) $value
3106	}
3107	set q [ViewToQuaternion]
3108	$_arcball quaternion $q
3109	SendCmd "camera orient $q"
3110	SendCmd "camera reset"
3111	set _view(-xpan) 0
3112	set _view(-ypan) 0
3113	set _view(-zoom) 1.0
3114	}
3115
3116	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
3117	if { ![info exists _limits($_curFldName)] } {
3118	puts stderr "no _curFldName"
3119	return ""
3120	}
3121	if { $_contourList(numLevels) < 1 } {
3122	# There are tools that set 0 levels to get cutplanes only
3123	#puts stderr "numLevels < 1"
3124	return ""
3125	}
3126	if { [llength $_contourList(reqValues)] > 1 } {
3127	set values $_contourList(reqValues)
3128	} else {
3129	# if custom range has been set, use the custom min and max
3130	# to generate contour list values
3131	if { $_settings(-customrange) } {
3132	set vmin [$itk_component(min) value]
3133	set vmax [$itk_component(max) value]
3134	} else {
3135	# use the field limits to calculate the contour list values
3136	foreach { vmin vmax } $_limits($_curFldName) break
3137	}
3138
3139	set v [blt::vector create \#auto]
3140	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
3141	$v delete end 0
3142	set values [$v range 0 end]
3143	blt::vector destroy $v
3144	}
3145	set _contourList(values) $values
3146	}
3147
3148	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
3149	set _first $dataobj
3150	$itk_component(field) choices delete 0 end
3151	$itk_component(fieldmenu) delete 0 end
3152	array unset _fields
3153	set _curFldName ""
3154	foreach cname [$_first components] {
3155	foreach fname [$_first fieldnames $cname] {
3156	if { [info exists _fields($fname)] } {
3157	continue
3158	}
3159	foreach { label units components } \
3160	[$_first fieldinfo $fname] break
3161	$itk_component(field) choices insert end "$fname" "$label"
3162	$itk_component(fieldmenu) add radiobutton -label "$label" \
3163	-value $label -variable [itcl::scope _curFldLabel] \
3164	-selectcolor red \
3165	-activebackground $itk_option(-plotbackground) \
3166	-activeforeground $itk_option(-plotforeground) \
3167	-font "Arial 8" \
3168	-command [itcl::code $this LegendTitleAction save]
3169	set _fields($fname) [list $label $units $components]
3170	if { $_curFldName == "" } {
3171	set _curFldName $fname
3172	set _curFldLabel $label
3173	}
3174	}
3175	}
3176	$itk_component(field) value $_curFldLabel
3177	if { $_settings(-customrange) } {
3178	set limits [list [$itk_component(min) value] [$itk_component(max) value]]
3179	SendCmd "dataset maprange explicit $limits $_curFldName"
3180	if { $limits != $_currentLimits } {
3181	set _currentLimits $limits
3182	EventuallyChangeContourLevels
3183	}
3184	} else {
3185	if { ![info exists _limits($_curFldName)] } {
3186	SendCmd "dataset maprange all"
3187	} else {
3188	set limits $_limits($_curFldName)
3189	SendCmd "dataset maprange explicit $limits $_curFldName"
3190	if { $limits != $_currentLimits } {
3191	set _currentLimits $limits
3192	EventuallyChangeContourLevels
3193	}
3194	}
3195	}
3196	}

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