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source: trunk/gui/scripts/vtkisosurfaceviewer.tcl @ 5071

Last change on this file since 5071 was 5071, checked in by ldelgass, 9 years ago
Isosurface viewer fixes: Fix applying UI settings for opacity, numcontours to new results. Set font option on gauges: still doesn't seem to get rid of bold text. Use custom min/max to compute isovlues even when they are range is larger than the intrinsic data range.
File size: 109.5 KB

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

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