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vtkisosurfaceviewer.tcl

Last change on this file was 6461, checked in by ldelgass, 8 years ago
Add point size style option to mesh/surface viewers, some fixes for constant color option.
File size: 110.1 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 Vtkvis server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2016 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *VtkIsosurfaceViewer.width 4i widgetDefault
19	option add VtkIsosurfaceViewercursor crosshair widgetDefault
20	option add *VtkIsosurfaceViewer.height 4i widgetDefault
21	option add *VtkIsosurfaceViewer.foreground black widgetDefault
22	option add *VtkIsosurfaceViewer.controlBackground gray widgetDefault
23	option add *VtkIsosurfaceViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkIsosurfaceViewer.plotBackground black widgetDefault
25	option add *VtkIsosurfaceViewer.plotForeground white widgetDefault
26	option add *VtkIsosurfaceViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkIsosurfaceViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkIsosurfaceViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkIsosurfaceViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { args } {
42	Rappture::VisViewer::constructor
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method parameters {title args} {
60	# do nothing
61	}
62	public method scale {args}
63
64	# The following methods are only used by this class.
65	private method AdjustSetting {what {value ""}}
66	private method BuildAxisTab {}
67	private method BuildCameraTab {}
68	private method BuildColormap { name }
69	private method BuildCutplanesTab {}
70	private method BuildDownloadPopup { widget command }
71	private method BuildIsosurfaceTab {}
72	private method Connect {}
73	private method CurrentDatasets {args}
74	private method DisableMouseRotationBindings {}
75	private method Disconnect {}
76	private method DoChangeContourLevels {}
77	private method DoResize {}
78	private method DoRotate {}
79	private method DrawLegend {}
80	private method EnterLegend { x y }
81	private method EventuallyChangeContourLevels {}
82	private method EventuallyRequestLegend {}
83	private method EventuallyResize { w h }
84	private method EventuallyRotate { q }
85	private method EventuallySetCutplane { axis args }
86	private method GenerateContourList {}
87	private method GetImage { args }
88	private method GetVtkData { args }
89	private method InitSettings { args }
90	private method IsValidObject { dataobj }
91	private method LeaveLegend {}
92	private method LegendB1Motion {status x y}
93	private method LegendPointToValue { x y }
94	private method LegendProbeSingleContour { x y }
95	private method LegendRangeAction { option args }
96	private method LegendRangeValidate { widget which value }
97	private method LegendTitleAction { option }
98	private method MotionLegend { x y }
99	private method MouseOver2Which {}
100	private method Pan {option x y}
101	private method PanCamera {}
102	private method Pick {x y}
103	private method QuaternionToView { q } {
104	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
105	}
106	private method Rebuild {}
107	private method ReceiveDataset { args }
108	private method ReceiveImage { args }
109	private method ReceiveLegend { colormap title min max size }
110	private method RequestLegend {}
111	private method Rotate {option x y}
112	private method SetCurrentColormap { color }
113	private method SetCurrentFieldName { dataobj }
114	private method SetLegendTip { x y }
115	private method SetMinMaxGauges { min max }
116	private method SetObjectStyle { dataobj comp }
117	private method SetOrientation { side }
118	private method SetupKeyboardBindings {}
119	private method SetupMousePanningBindings {}
120	private method SetupMouseRotationBindings {}
121	private method SetupMouseZoomBindings {}
122	private method Slice {option args}
123	private method ToggleCustomRange { args }
124	private method ViewToQuaternion {} {
125	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
126	}
127	private method Zoom {option}
128
129	private variable _arcball ""
130
131	private variable _dlist ""; # list of data objects
132	private variable _obj2ovride; # maps dataobj => style override
133	private variable _datasets; # contains all the dataobj-component
134	# datasets in the server
135	private variable _colormaps; # contains all the colormaps
136	# in the server.
137	# The name of the current colormap used. The colormap is global to all
138	# heightmaps displayed.
139	private variable _currentColormap ""
140	private variable _currentNumContours -1
141
142	private variable _click; # info used for rotate operations
143	private variable _limits; # autoscale min/max for all axes
144	private variable _view; # view params for 3D view
145	private variable _settings
146	private variable _changed
147	private variable _reset 1; # Connection to server has been reset.
148
149	private variable _first ""; # This is the topmost dataset.
150	private variable _start 0
151	private variable _title ""
152	private variable _isolines
153	private variable _contourList
154	private variable _currentLimits ""
155	private variable _widget
156	private variable _width 0
157	private variable _height 0
158	private variable _resizePending 0
159	private variable _legendPending 0
160	private variable _rotatePending 0
161	private variable _cutplanePending 0
162	private variable _fields
163	private variable _curFldName ""
164	private variable _curFldLabel ""
165	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
166	private variable _mouseOver ""; # what called LegendRangeAction:
167	# vmin or vmax
168	private variable _customRangeClick 1; # what called ToggleCustomRange
169
170	private common _downloadPopup; # download options from popup
171	private common _hardcopy
172	}
173
174	itk::usual VtkIsosurfaceViewer {
175	keep -background -foreground -cursor -font
176	keep -plotbackground -plotforeground
177	}
178
179	# ----------------------------------------------------------------------
180	# CONSTRUCTOR
181	# ----------------------------------------------------------------------
182	itcl::body Rappture::VtkIsosurfaceViewer::constructor {args} {
183	set _serverType "vtkvis"
184
185	#DebugOn
186	EnableWaitDialog 900
187
188	# Rebuild event
189	$_dispatcher register !rebuild
190	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
191
192	# Resize event
193	$_dispatcher register !resize
194	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
195
196	# Legend event
197	$_dispatcher register !legend
198	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
199
200	# Rotate event
201	$_dispatcher register !rotate
202	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
203
204	# Contour levels event
205	$_dispatcher register !contours
206	$_dispatcher dispatch $this !contours \
207	"[itcl::code $this DoChangeContourLevels]; list"
208
209	# X-Cutplane event
210	$_dispatcher register !xcutplane
211	$_dispatcher dispatch $this !xcutplane \
212	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
213
214	# Y-Cutplane event
215	$_dispatcher register !ycutplane
216	$_dispatcher dispatch $this !ycutplane \
217	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
218
219	# Z-Cutplane event
220	$_dispatcher register !zcutplane
221	$_dispatcher dispatch $this !zcutplane \
222	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
223
224	#
225	# Populate parser with commands handle incoming requests
226	#
227	$_parser alias image [itcl::code $this ReceiveImage]
228	$_parser alias legend [itcl::code $this ReceiveLegend]
229	$_parser alias dataset [itcl::code $this ReceiveDataset]
230
231	# Initialize the view to some default parameters.
232	array set _view {
233	-ortho 0
234	-qw 0.853553
235	-qx -0.353553
236	-qy 0.353553
237	-qz 0.146447
238	-xpan 0
239	-ypan 0
240	-zoom 1.0
241	}
242	set _arcball [blt::arcball create 100 100]
243	$_arcball quaternion [ViewToQuaternion]
244
245	array set _contourList {
246	numLevels 10
247	reqValues ""
248	updatePending 0
249	values ""
250	}
251	array set _settings {
252	-axesvisible 1
253	-axislabels 1
254	-axisminorticks 1
255	-axismode "static"
256	-background black
257	-colormap BCGYR
258	-colormapvisible 1
259	-customrange 0
260	-customrangemin 0
261	-customrangemax 1
262	-cutplaneedges 0
263	-cutplanelighting 1
264	-cutplaneopacity 1.0
265	-cutplanepreinterp 1
266	-cutplanesvisible 0
267	-cutplanewireframe 0
268	-field "Default"
269	-isolinecolor white
270	-isosurfaceedges 0
271	-isosurfacelighting 1
272	-isosurfaceopacity 0.6
273	-isosurfacevisible 1
274	-isosurfacewireframe 0
275	-legendvisible 1
276	-numcontours 10
277	-outline 0
278	-xcutplaneposition 50
279	-xcutplanevisible 1
280	-xgrid 0
281	-ycutplaneposition 50
282	-ycutplanevisible 1
283	-ygrid 0
284	-zcutplaneposition 50
285	-zcutplanevisible 1
286	-zgrid 0
287	}
288	array set _changed {
289	-colormap 0
290	-cutplaneedges 0
291	-cutplanelighting 0
292	-cutplaneopacity 0
293	-cutplanepreinterp 0
294	-cutplanesvisible 0
295	-cutplanewireframe 0
296	-isosurfaceedges 0
297	-isosurfacelighting 0
298	-isosurfaceopacity 0
299	-isosurfacevisible 0
300	-isosurfacewireframe 0
301	-numcontours 0
302	-outline 0
303	-xcutplaneposition 0
304	-xcutplanevisible 0
305	-ycutplaneposition 0
306	-ycutplanevisible 0
307	-zcutplaneposition 0
308	-zcutplanevisible 0
309	}
310	array set _widget {
311	-isosurfaceopacity 60
312	-cutplaneopacity 100
313	}
314
315	itk_component add view {
316	canvas $itk_component(plotarea).view \
317	-highlightthickness 0 -borderwidth 0
318	} {
319	usual
320	ignore -highlightthickness -borderwidth -background
321	}
322
323	itk_component add fieldmenu {
324	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
325	-tearoff 0
326	} {
327	usual
328	ignore -background -foreground -relief -tearoff
329	}
330
331	# add an editor for adjusting the legend min and max values
332	itk_component add editor {
333	Rappture::Editor $itk_interior.editor \
334	-activatecommand [itcl::code $this LegendRangeAction activate] \
335	-validatecommand [itcl::code $this LegendRangeAction validate] \
336	-applycommand [itcl::code $this LegendRangeAction apply]
337	}
338
339	set c $itk_component(view)
340	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
341	bind $c <Control-F1> [itcl::code $this ToggleConsole]
342
343	# Fix the scrollregion in case we go off screen
344	$c configure -scrollregion [$c bbox all]
345
346	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
347	set _map(cwidth) -1
348	set _map(cheight) -1
349	set _map(zoom) 1.0
350	set _map(original) ""
351
352	set f [$itk_component(main) component controls]
353	itk_component add reset {
354	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
355	-highlightthickness 0 \
356	-image [Rappture::icon reset-view] \
357	-command [itcl::code $this Zoom reset]
358	} {
359	usual
360	ignore -highlightthickness
361	}
362	pack $itk_component(reset) -side top -padx 2 -pady 2
363	Rappture::Tooltip::for $itk_component(reset) \
364	"Reset the view to the default zoom level"
365
366	itk_component add zoomin {
367	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
368	-highlightthickness 0 \
369	-image [Rappture::icon zoom-in] \
370	-command [itcl::code $this Zoom in]
371	} {
372	usual
373	ignore -highlightthickness
374	}
375	pack $itk_component(zoomin) -side top -padx 2 -pady 2
376	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
377
378	itk_component add zoomout {
379	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
380	-highlightthickness 0 \
381	-image [Rappture::icon zoom-out] \
382	-command [itcl::code $this Zoom out]
383	} {
384	usual
385	ignore -highlightthickness
386	}
387	pack $itk_component(zoomout) -side top -padx 2 -pady 2
388	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
389
390	itk_component add contour {
391	Rappture::PushButton $f.contour \
392	-onimage [Rappture::icon volume-on] \
393	-offimage [Rappture::icon volume-off] \
394	-variable [itcl::scope _settings(-isosurfacevisible)] \
395	-command [itcl::code $this AdjustSetting -isosurfacevisible]
396	}
397	$itk_component(contour) select
398	Rappture::Tooltip::for $itk_component(contour) \
399	"Hide the isosurface"
400	pack $itk_component(contour) -padx 2 -pady 2
401
402	itk_component add cutplane {
403	Rappture::PushButton $f.cutplane \
404	-onimage [Rappture::icon cutbutton] \
405	-offimage [Rappture::icon cutbutton] \
406	-variable [itcl::scope _settings(-cutplanesvisible)] \
407	-command [itcl::code $this AdjustSetting -cutplanesvisible]
408	}
409	Rappture::Tooltip::for $itk_component(cutplane) \
410	"Show the cutplanes"
411	pack $itk_component(cutplane) -padx 2 -pady 2
412
413	if { [catch {
414	BuildIsosurfaceTab
415	BuildCutplanesTab
416	BuildAxisTab
417	BuildCameraTab
418	} errs] != 0 } {
419	puts stderr errs=$errs
420	}
421
422	# Legend
423	set _image(legend) [image create photo]
424	itk_component add legend {
425	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
426	} {
427	usual
428	ignore -highlightthickness
429	rename -background -plotbackground plotBackground Background
430	}
431
432	# Hack around the Tk panewindow. The problem is that the requested
433	# size of the 3d view isn't set until an image is retrieved from
434	# the server. So the panewindow uses the tiny size.
435	set w 10000
436	pack forget $itk_component(view)
437	blt::table $itk_component(plotarea) \
438	0,0 $itk_component(view) -fill both -reqwidth $w
439	blt::table configure $itk_component(plotarea) c1 -resize none
440
441	SetupMouseRotationBindings
442	SetupMousePanningBindings
443	SetupMouseZoomBindings
444	SetupKeyboardBindings
445
446	#bind $itk_component(view) <ButtonRelease-3> \
447	# [itcl::code $this Pick %x %y]
448
449	set _image(download) [image create photo]
450
451	eval itk_initialize $args
452
453	Connect
454	}
455
456	# ----------------------------------------------------------------------
457	# DESTRUCTOR
458	# ----------------------------------------------------------------------
459	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
460	Disconnect
461	image delete $_image(plot)
462	image delete $_image(download)
463	catch { blt::arcball destroy $_arcball }
464	}
465
466	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseRotationBindings {} {
467	# Bindings for rotation via mouse
468	bind $itk_component(view) <ButtonPress-1> \
469	[itcl::code $this Rotate click %x %y]
470	bind $itk_component(view) <B1-Motion> \
471	[itcl::code $this Rotate drag %x %y]
472	bind $itk_component(view) <ButtonRelease-1> \
473	[itcl::code $this Rotate release %x %y]
474	}
475
476	itcl::body Rappture::VtkIsosurfaceViewer::DisableMouseRotationBindings {} {
477	# Bindings for rotation via mouse
478	bind $itk_component(view) <ButtonPress-1> ""
479	bind $itk_component(view) <B1-Motion> ""
480	bind $itk_component(view) <ButtonRelease-1> ""
481	}
482
483	itcl::body Rappture::VtkIsosurfaceViewer::SetupMousePanningBindings {} {
484	# Bindings for panning via mouse
485	bind $itk_component(view) <ButtonPress-2> \
486	[itcl::code $this Pan click %x %y]
487	bind $itk_component(view) <B2-Motion> \
488	[itcl::code $this Pan drag %x %y]
489	bind $itk_component(view) <ButtonRelease-2> \
490	[itcl::code $this Pan release %x %y]
491	}
492
493	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseZoomBindings {} {
494	if {[string equal "x11" [tk windowingsystem]]} {
495	# Bindings for zoom via mouse
496	bind $itk_component(view) <4> [itcl::code $this Zoom out]
497	bind $itk_component(view) <5> [itcl::code $this Zoom in]
498	}
499	}
500
501	itcl::body Rappture::VtkIsosurfaceViewer::SetupKeyboardBindings {} {
502	# Bindings for panning via keyboard
503	bind $itk_component(view) <KeyPress-Left> \
504	[itcl::code $this Pan set -10 0]
505	bind $itk_component(view) <KeyPress-Right> \
506	[itcl::code $this Pan set 10 0]
507	bind $itk_component(view) <KeyPress-Up> \
508	[itcl::code $this Pan set 0 -10]
509	bind $itk_component(view) <KeyPress-Down> \
510	[itcl::code $this Pan set 0 10]
511	bind $itk_component(view) <Shift-KeyPress-Left> \
512	[itcl::code $this Pan set -2 0]
513	bind $itk_component(view) <Shift-KeyPress-Right> \
514	[itcl::code $this Pan set 2 0]
515	bind $itk_component(view) <Shift-KeyPress-Up> \
516	[itcl::code $this Pan set 0 -2]
517	bind $itk_component(view) <Shift-KeyPress-Down> \
518	[itcl::code $this Pan set 0 2]
519
520	# Bindings for zoom via keyboard
521	bind $itk_component(view) <KeyPress-Prior> \
522	[itcl::code $this Zoom out]
523	bind $itk_component(view) <KeyPress-Next> \
524	[itcl::code $this Zoom in]
525
526	bind $itk_component(view) <Enter> "focus $itk_component(view)"
527	}
528
529	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
530	if { $_width < 2 } {
531	set _width 500
532	}
533	if { $_height < 2 } {
534	set _height 500
535	}
536	set _start [clock clicks -milliseconds]
537	SendCmd "screen size $_width $_height"
538
539	EventuallyRequestLegend
540	set _resizePending 0
541	}
542
543	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
544	GenerateContourList
545	SendCmd [list contour3d contourlist $_contourList(values)]
546	SendCmd [list camera reset]
547	DrawLegend
548	set _contourList(updatePending) 0
549	}
550
551	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
552	SendCmd "camera orient [ViewToQuaternion]"
553	set _rotatePending 0
554	}
555
556	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
557	if { !$_legendPending } {
558	set _legendPending 1
559	$_dispatcher event -idle !legend
560	}
561	}
562
563	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
564	set _width $w
565	set _height $h
566	$_arcball resize $w $h
567	if { !$_resizePending } {
568	set _resizePending 1
569	$_dispatcher event -after 400 !resize
570	}
571	}
572
573	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
574	QuaternionToView $q
575	if { !$_rotatePending } {
576	set _rotatePending 1
577	$_dispatcher event -after 100 !rotate
578	}
579	}
580
581	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
582	if { !$_cutplanePending } {
583	set _cutplanePending 1
584	$_dispatcher event -after 100 !${axis}cutplane
585	}
586	}
587
588	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
589	set n $_contourList(numLevels)
590	set _contourList(values) ""
591	if { !$_contourList(updatePending) } {
592	set _contourList(updatePending) 1
593	$_dispatcher event -after 100 !contours
594	}
595	}
596
597	# ----------------------------------------------------------------------
598	# USAGE: add <dataobj> ?<settings>?
599	#
600	# Clients use this to add a data object to the plot. The optional
601	# <settings> are used to configure the plot. Allowed settings are
602	# -color, -brightness, -width, -linestyle, and -raise.
603	# ----------------------------------------------------------------------
604	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
605	if { ![$dataobj isvalid] } {
606	return; # Object doesn't contain valid data.
607	}
608	array set params {
609	-color auto
610	-width 1
611	-linestyle solid
612	-brightness 0
613	-raise 0
614	-description ""
615	-param ""
616	-type ""
617	}
618	array set params $settings
619
620	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
621	# can't handle -autocolors yet
622	set params(-color) black
623	}
624	set pos [lsearch -exact $_dlist $dataobj]
625	if {$pos < 0} {
626	lappend _dlist $dataobj
627	}
628	set _obj2ovride($dataobj-color) $params(-color)
629	set _obj2ovride($dataobj-width) $params(-width)
630	set _obj2ovride($dataobj-raise) $params(-raise)
631	$_dispatcher event -idle !rebuild
632	}
633
634	# ----------------------------------------------------------------------
635	# USAGE: delete ?<dataobj1> <dataobj2> ...?
636	#
637	# Clients use this to delete a dataobj from the plot. If no dataobjs
638	# are specified, then all dataobjs are deleted. No data objects are
639	# deleted. They are only removed from the display list.
640	# ----------------------------------------------------------------------
641	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
642	if { [llength $args] == 0} {
643	set args $_dlist
644	}
645	# Delete all specified dataobjs
646	set changed 0
647	foreach dataobj $args {
648	set pos [lsearch -exact $_dlist $dataobj]
649	if { $pos < 0 } {
650	continue; # Don't know anything about it.
651	}
652	# Remove it from the dataobj list.
653	set _dlist [lreplace $_dlist $pos $pos]
654	array unset _obj2ovride $dataobj-*
655	set changed 1
656	}
657	# If anything changed, then rebuild the plot
658	if { $changed } {
659	$_dispatcher event -idle !rebuild
660	}
661	}
662
663	# ----------------------------------------------------------------------
664	# USAGE: get ?-objects?
665	# USAGE: get ?-visible?
666	# USAGE: get ?-image view?
667	#
668	# Clients use this to query the list of objects being plotted, in
669	# order from bottom to top of this result. The optional "-image"
670	# flag can also request the internal images being shown.
671	# ----------------------------------------------------------------------
672	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
673	if {[llength $args] == 0} {
674	set args "-objects"
675	}
676
677	set op [lindex $args 0]
678	switch -- $op {
679	"-objects" {
680	# put the dataobj list in order according to -raise options
681	set dlist {}
682	foreach dataobj $_dlist {
683	if { ![IsValidObject $dataobj] } {
684	continue
685	}
686	if {[info exists _obj2ovride($dataobj-raise)] &&
687	$_obj2ovride($dataobj-raise)} {
688	set dlist [linsert $dlist 0 $dataobj]
689	} else {
690	lappend dlist $dataobj
691	}
692	}
693	return $dlist
694	}
695	"-visible" {
696	set dlist {}
697	foreach dataobj $_dlist {
698	if { ![IsValidObject $dataobj] } {
699	continue
700	}
701	if { ![info exists _obj2ovride($dataobj-raise)] } {
702	# No setting indicates that the object isn't visible.
703	continue
704	}
705	# Otherwise use the -raise parameter to put the object to
706	# the front of the list.
707	if { $_obj2ovride($dataobj-raise) } {
708	set dlist [linsert $dlist 0 $dataobj]
709	} else {
710	lappend dlist $dataobj
711	}
712	}
713	return $dlist
714	}
715	"-image" {
716	if {[llength $args] != 2} {
717	error "wrong # args: should be \"get -image view\""
718	}
719	switch -- [lindex $args end] {
720	view {
721	return $_image(plot)
722	}
723	default {
724	error "bad image name \"[lindex $args end]\": should be view"
725	}
726	}
727	}
728	default {
729	error "bad option \"$op\": should be -objects, -visible or -image"
730	}
731	}
732	}
733
734	# ----------------------------------------------------------------------
735	# USAGE: scale ?<data1> <data2> ...?
736	#
737	# Sets the default limits for the overall plot according to the
738	# limits of the data for all of the given <data> objects. This
739	# accounts for all objects--even those not showing on the screen.
740	# Because of this, the limits are appropriate for all objects as
741	# the user scans through data in the ResultSet viewer.
742	# ----------------------------------------------------------------------
743	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
744	foreach dataobj $args {
745	if { ![$dataobj isvalid] } {
746	continue; # Object doesn't contain valid data.
747	}
748	foreach axis { x y z } {
749	set lim [$dataobj limits $axis]
750	if { ![info exists _limits($axis)] } {
751	set _limits($axis) $lim
752	continue
753	}
754	foreach {min max} $lim break
755	foreach {amin amax} $_limits($axis) break
756	if { $amin > $min } {
757	set amin $min
758	}
759	if { $amax < $max } {
760	set amax $max
761	}
762	set _limits($axis) [list $amin $amax]
763	}
764	foreach { fname lim } [$dataobj fieldlimits] {
765	if { ![info exists _limits($fname)] } {
766	set _limits($fname) $lim
767
768	# set reasonable defaults for
769	# customrangevmin and customrangevmax
770	foreach {min max} $lim break
771	SetMinMaxGauges $min $max
772	set _settings(-customrangemin) $min
773	set _settings(-customrangemax) $max
774
775	continue
776	}
777	foreach {min max} $lim break
778	foreach {fmin fmax} $_limits($fname) break
779	if { ! $_settings(-customrange) } {
780	SetMinMaxGauges $fmin $fmax
781	}
782	if { $fmin > $min } {
783	set fmin $min
784	}
785	if { $fmax < $max } {
786	set fmax $max
787	}
788	set _limits($fname) [list $fmin $fmax]
789	}
790	}
791	}
792
793	# ----------------------------------------------------------------------
794	# USAGE: download coming
795	# USAGE: download controls <downloadCommand>
796	# USAGE: download now
797	#
798	# Clients use this method to create a downloadable representation
799	# of the plot. Returns a list of the form {ext string}, where
800	# "ext" is the file extension (indicating the type of data) and
801	# "string" is the data itself.
802	# ----------------------------------------------------------------------
803	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
804	switch $option {
805	coming {
806	if {[catch {
807	blt::winop snap $itk_component(plotarea) $_image(download)
808	}]} {
809	$_image(download) configure -width 1 -height 1
810	$_image(download) put #000000
811	}
812	}
813	controls {
814	set popup .vtkviewerdownload
815	if { ![winfo exists .vtkviewerdownload] } {
816	set inner [BuildDownloadPopup $popup [lindex $args 0]]
817	} else {
818	set inner [$popup component inner]
819	}
820	set _downloadPopup(image_controls) $inner.image_frame
821	set num [llength [get]]
822	set num [expr {($num == 1) ? "1 result" : "$num results"}]
823	set word [Rappture::filexfer::label downloadWord]
824	$inner.summary configure -text "$word $num in the following format:"
825	update idletasks ;# Fix initial sizes
826	return $popup
827	}
828	now {
829	set popup .vtkviewerdownload
830	if {[winfo exists .vtkviewerdownload]} {
831	$popup deactivate
832	}
833	switch -- $_downloadPopup(format) {
834	"image" {
835	return [$this GetImage [lindex $args 0]]
836	}
837	"vtk" {
838	return [$this GetVtkData [lindex $args 0]]
839	}
840	}
841	return ""
842	}
843	default {
844	error "bad option \"$option\": should be coming, controls, now"
845	}
846	}
847	}
848
849	# ----------------------------------------------------------------------
850	# USAGE: Connect ?<host:port>,<host:port>...?
851	#
852	# Clients use this method to establish a connection to a new
853	# server, or to reestablish a connection to the previous server.
854	# Any existing connection is automatically closed.
855	# ----------------------------------------------------------------------
856	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
857	set _hosts [GetServerList "vtkvis"]
858	if { "" == $_hosts } {
859	return 0
860	}
861	set _reset 1
862	set result [VisViewer::Connect $_hosts]
863	if { $result } {
864	if { $_reportClientInfo } {
865	# Tell the server the viewer, hub, user and session.
866	# Do this immediately on connect before buffering any commands
867	global env
868
869	set info {}
870	set user "???"
871	if { [info exists env(USER)] } {
872	set user $env(USER)
873	}
874	set session "???"
875	if { [info exists env(SESSION)] } {
876	set session $env(SESSION)
877	}
878	lappend info "version" "$Rappture::version"
879	lappend info "build" "$Rappture::build"
880	lappend info "svnurl" "$Rappture::svnurl"
881	lappend info "installdir" "$Rappture::installdir"
882	lappend info "hub" [exec hostname]
883	lappend info "client" "vtkisosurfaceviewer"
884	lappend info "user" $user
885	lappend info "session" $session
886	SendCmd "clientinfo [list $info]"
887	}
888
889	set w [winfo width $itk_component(view)]
890	set h [winfo height $itk_component(view)]
891	EventuallyResize $w $h
892	}
893	return $result
894	}
895
896	#
897	# isconnected --
898	#
899	# Indicates if we are currently connected to the visualization server.
900	#
901	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
902	return [VisViewer::IsConnected]
903	}
904
905	#
906	# disconnect --
907	#
908	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
909	Disconnect
910	set _reset 1
911	}
912
913	#
914	# Disconnect --
915	#
916	# Clients use this method to disconnect from the current rendering server.
917	#
918	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
919	VisViewer::Disconnect
920
921	$_dispatcher cancel !rebuild
922	$_dispatcher cancel !resize
923	$_dispatcher cancel !rotate
924	$_dispatcher cancel !xcutplane
925	$_dispatcher cancel !ycutplane
926	$_dispatcher cancel !zcutplane
927	$_dispatcher cancel !legend
928	# disconnected -- no more data sitting on server
929	array unset _datasets
930	array unset _colormaps
931	}
932
933	# ----------------------------------------------------------------------
934	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
935	#
936	# Invoked automatically whenever the "image" command comes in from
937	# the rendering server. Indicates that binary image data with the
938	# specified <size> will follow.
939	# ----------------------------------------------------------------------
940	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
941	array set info {
942	-token "???"
943	-bytes 0
944	-type image
945	}
946	array set info $args
947	set bytes [ReceiveBytes $info(-bytes)]
948	if { $info(-type) == "image" } {
949	if 0 {
950	set f [open "last.ppm" "w"]
951	fconfigure $f -encoding binary
952	puts -nonewline $f $bytes
953	close $f
954	}
955	$_image(plot) configure -data $bytes
956	#set time [clock seconds]
957	#set date [clock format $time]
958	#set w [image width $_image(plot)]
959	#set h [image height $_image(plot)]
960	#puts stderr "$date: received image ${w}x${h} image"
961	if { $_start > 0 } {
962	set finish [clock clicks -milliseconds]
963	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
964	set _start 0
965	}
966	} elseif { $info(type) == "print" } {
967	set tag $this-print-$info(-token)
968	set _hardcopy($tag) $bytes
969	}
970	}
971
972	#
973	# ReceiveDataset --
974	#
975	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
976	if { ![isconnected] } {
977	return
978	}
979	set option [lindex $args 0]
980	switch -- $option {
981	"scalar" {
982	set option [lindex $args 1]
983	switch -- $option {
984	"world" {
985	foreach { x y z value tag } [lrange $args 2 end] break
986	}
987	"pixel" {
988	foreach { x y value tag } [lrange $args 2 end] break
989	}
990	}
991	}
992	"vector" {
993	set option [lindex $args 1]
994	switch -- $option {
995	"world" {
996	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
997	}
998	"pixel" {
999	foreach { x y vx vy vz tag } [lrange $args 2 end] break
1000	}
1001	}
1002	}
1003	"names" {
1004	foreach { name } [lindex $args 1] {
1005	#puts stderr "Dataset: $name"
1006	}
1007	}
1008	default {
1009	error "unknown dataset option \"$option\" from server"
1010	}
1011	}
1012	}
1013
1014	# ----------------------------------------------------------------------
1015	# USAGE: Rebuild
1016	#
1017	# Called automatically whenever something changes that affects the
1018	# data in the widget. Clears any existing data and rebuilds the
1019	# widget to display new data.
1020	# ----------------------------------------------------------------------
1021	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
1022	set w [winfo width $itk_component(view)]
1023	set h [winfo height $itk_component(view)]
1024	if { $w < 2 \|\| $h < 2 } {
1025	update
1026	$_dispatcher event -idle !rebuild
1027	return
1028	}
1029
1030	# Turn on buffering of commands to the server. We don't want to
1031	# be preempted by a server disconnect/reconnect (which automatically
1032	# generates a new call to Rebuild).
1033	StartBufferingCommands
1034
1035	if { $_reset } {
1036	set _width $w
1037	set _height $h
1038	$_arcball resize $w $h
1039	DoResize
1040
1041	# Reset the camera and other view parameters
1042	$_arcball quaternion [ViewToQuaternion]
1043	InitSettings -ortho
1044	DoRotate
1045	PanCamera
1046	set _first ""
1047	InitSettings -background \
1048	-xgrid -ygrid -zgrid -axismode \
1049	-axesvisible -axislabels -axisminorticks
1050	#SendCmd "axis lformat all %g"
1051	StopBufferingCommands
1052	SendCmd "imgflush"
1053	StartBufferingCommands
1054	}
1055	set _first ""
1056	SendCmd "dataset visible 0"
1057	eval scale $_dlist
1058	foreach dataobj [get -objects] {
1059	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1060	set _first $dataobj
1061	SetCurrentFieldName $dataobj
1062	}
1063	foreach comp [$dataobj components] {
1064	set tag $dataobj-$comp
1065	if { ![info exists _datasets($tag)] } {
1066	set bytes [$dataobj vtkdata $comp]
1067	if 0 {
1068	set f [open "/tmp/isosurface.vtk" "w"]
1069	fconfigure $f -translation binary -encoding binary
1070	puts -nonewline $f $bytes
1071	close $f
1072	}
1073	set length [string length $bytes]
1074	if { $_reportClientInfo } {
1075	set info {}
1076	lappend info "tool_id" [$dataobj hints toolid]
1077	lappend info "tool_name" [$dataobj hints toolname]
1078	lappend info "tool_title" [$dataobj hints tooltitle]
1079	lappend info "tool_command" [$dataobj hints toolcommand]
1080	lappend info "tool_revision" [$dataobj hints toolrevision]
1081	lappend info "dataset_label" [$dataobj hints label]
1082	lappend info "dataset_size" $length
1083	lappend info "dataset_tag" $tag
1084	SendCmd "clientinfo [list $info]"
1085	}
1086	SendCmd "dataset add $tag data follows $length"
1087	SendData $bytes
1088	set _datasets($tag) 1
1089	SetObjectStyle $dataobj $comp
1090	}
1091	if { [info exists _obj2ovride($dataobj-raise)] } {
1092	SendCmd "contour3d visible 1 $tag"
1093	}
1094	}
1095	}
1096
1097	InitSettings -cutplanesvisible -isosurfacevisible -outline
1098	if { $_reset } {
1099	# These are settings that rely on a dataset being loaded.
1100	InitSettings \
1101	-field -range \
1102	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1103	-isosurfacewireframe \
1104	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1105	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1106	-cutplanepreinterp -numcontours
1107
1108	Zoom reset
1109	foreach axis { x y z } {
1110	set label ""
1111	if { $_first != "" } {
1112	set label [$_first hints ${axis}label]
1113	}
1114	if { $label == "" } {
1115	set label [string toupper $axis]
1116	}
1117	# There may be a space in the axis label.
1118	SendCmd [list axis name $axis $label]
1119	}
1120	if { [array size _fields] < 2 } {
1121	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1122	}
1123	set _reset 0
1124	}
1125	# Redraw the legend even if we're using the same colormap. The position
1126	# of the isolines may have changed because the range of data changed.
1127	DrawLegend
1128
1129	# Actually write the commands to the server socket. If it fails, we don't
1130	# care. We're finished here.
1131	blt::busy hold $itk_component(hull)
1132	StopBufferingCommands; # Turn off buffering and send commands.
1133	blt::busy release $itk_component(hull)
1134	}
1135
1136	# ----------------------------------------------------------------------
1137	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1138	#
1139	# Returns a list of server IDs for the current datasets being displayed. This
1140	# is normally a single ID, but it might be a list of IDs if the current data
1141	# object has multiple components.
1142	# ----------------------------------------------------------------------
1143	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1144	set flag [lindex $args 0]
1145	switch -- $flag {
1146	"-all" {
1147	if { [llength $args] > 1 } {
1148	error "CurrentDatasets: can't specify dataobj after \"-all\""
1149	}
1150	set dlist [get -objects]
1151	}
1152	"-visible" {
1153	if { [llength $args] > 1 } {
1154	set dlist {}
1155	set args [lrange $args 1 end]
1156	foreach dataobj $args {
1157	if { [info exists _obj2ovride($dataobj-raise)] } {
1158	lappend dlist $dataobj
1159	}
1160	}
1161	} else {
1162	set dlist [get -visible]
1163	}
1164	}
1165	default {
1166	set dlist $args
1167	}
1168	}
1169	set rlist ""
1170	foreach dataobj $dlist {
1171	foreach comp [$dataobj components] {
1172	set tag $dataobj-$comp
1173	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1174	lappend rlist $tag
1175	}
1176	}
1177	}
1178	return $rlist
1179	}
1180
1181	# ----------------------------------------------------------------------
1182	# USAGE: Zoom in
1183	# USAGE: Zoom out
1184	# USAGE: Zoom reset
1185	#
1186	# Called automatically when the user clicks on one of the zoom
1187	# controls for this widget. Changes the zoom for the current view.
1188	# ----------------------------------------------------------------------
1189	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1190	switch -- $option {
1191	"in" {
1192	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1193	SendCmd "camera zoom $_view(-zoom)"
1194	}
1195	"out" {
1196	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1197	SendCmd "camera zoom $_view(-zoom)"
1198	}
1199	"reset" {
1200	array set _view {
1201	-qw 0.853553
1202	-qx -0.353553
1203	-qy 0.353553
1204	-qz 0.146447
1205	-xpan 0
1206	-ypan 0
1207	-zoom 1.0
1208	}
1209	if { $_first != "" } {
1210	set location [$_first hints camera]
1211	if { $location != "" } {
1212	array set _view $location
1213	}
1214	}
1215	$_arcball quaternion [ViewToQuaternion]
1216	DoRotate
1217	SendCmd "camera reset"
1218	}
1219	}
1220	}
1221
1222	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1223	set x $_view(-xpan)
1224	set y $_view(-ypan)
1225	SendCmd "camera pan $x $y"
1226	}
1227
1228	# ----------------------------------------------------------------------
1229	# USAGE: Rotate click <x> <y>
1230	# USAGE: Rotate drag <x> <y>
1231	# USAGE: Rotate release <x> <y>
1232	#
1233	# Called automatically when the user clicks/drags/releases in the
1234	# plot area. Moves the plot according to the user's actions.
1235	# ----------------------------------------------------------------------
1236	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1237	switch -- $option {
1238	"click" {
1239	$itk_component(view) configure -cursor fleur
1240	set _click(x) $x
1241	set _click(y) $y
1242	}
1243	"drag" {
1244	if {[array size _click] == 0} {
1245	Rotate click $x $y
1246	} else {
1247	set w [winfo width $itk_component(view)]
1248	set h [winfo height $itk_component(view)]
1249	if {$w <= 0 \|\| $h <= 0} {
1250	return
1251	}
1252
1253	if {[catch {
1254	# this fails sometimes for no apparent reason
1255	set dx [expr {double($x-$_click(x))/$w}]
1256	set dy [expr {double($y-$_click(y))/$h}]
1257	}]} {
1258	return
1259	}
1260	if { $dx == 0 && $dy == 0 } {
1261	return
1262	}
1263	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1264	EventuallyRotate $q
1265	set _click(x) $x
1266	set _click(y) $y
1267	}
1268	}
1269	"release" {
1270	Rotate drag $x $y
1271	$itk_component(view) configure -cursor ""
1272	catch {unset _click}
1273	}
1274	default {
1275	error "bad option \"$option\": should be click, drag, release"
1276	}
1277	}
1278	}
1279
1280	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1281	foreach tag [CurrentDatasets -visible] {
1282	SendCmd "dataset getscalar pixel $x $y $tag"
1283	}
1284	}
1285
1286	# ----------------------------------------------------------------------
1287	# USAGE: $this Pan click x y
1288	# $this Pan drag x y
1289	# $this Pan release x y
1290	#
1291	# Called automatically when the user clicks on one of the zoom
1292	# controls for this widget. Changes the zoom for the current view.
1293	# ----------------------------------------------------------------------
1294	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1295	switch -- $option {
1296	"set" {
1297	set w [winfo width $itk_component(view)]
1298	set h [winfo height $itk_component(view)]
1299	set x [expr $x / double($w)]
1300	set y [expr $y / double($h)]
1301	set _view(-xpan) [expr $_view(-xpan) + $x]
1302	set _view(-ypan) [expr $_view(-ypan) + $y]
1303	PanCamera
1304	return
1305	}
1306	"click" {
1307	set _click(x) $x
1308	set _click(y) $y
1309	$itk_component(view) configure -cursor hand1
1310	}
1311	"drag" {
1312	if { ![info exists _click(x)] } {
1313	set _click(x) $x
1314	}
1315	if { ![info exists _click(y)] } {
1316	set _click(y) $y
1317	}
1318	set w [winfo width $itk_component(view)]
1319	set h [winfo height $itk_component(view)]
1320	set dx [expr ($_click(x) - $x)/double($w)]
1321	set dy [expr ($_click(y) - $y)/double($h)]
1322	set _click(x) $x
1323	set _click(y) $y
1324	set _view(-xpan) [expr $_view(-xpan) - $dx]
1325	set _view(-ypan) [expr $_view(-ypan) - $dy]
1326	PanCamera
1327	}
1328	"release" {
1329	Pan drag $x $y
1330	$itk_component(view) configure -cursor ""
1331	}
1332	default {
1333	error "unknown option \"$option\": should set, click, drag, or release"
1334	}
1335	}
1336	}
1337
1338	# ----------------------------------------------------------------------
1339	# USAGE: InitSettings <what> ?<value>?
1340	#
1341	# Used internally to update rendering settings whenever parameters
1342	# change in the popup settings panel. Sends the new settings off
1343	# to the back end.
1344	# ----------------------------------------------------------------------
1345	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1346	foreach spec $args {
1347	AdjustSetting $spec
1348	}
1349	}
1350
1351	#
1352	# AdjustSetting --
1353	#
1354	# Changes/updates a specific setting in the widget. There are
1355	# usually user-setable option. Commands are sent to the render
1356	# server.
1357	#
1358	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1359	DebugTrace "Enter"
1360	if { ![isconnected] } {
1361	DebugTrace "Not connected"
1362	return
1363	}
1364	switch -- $what {
1365	"-axesvisible" {
1366	set bool $_settings($what)
1367	SendCmd "axis visible all $bool"
1368	}
1369	"-axislabels" {
1370	set bool $_settings($what)
1371	SendCmd "axis labels all $bool"
1372	}
1373	"-axisminorticks" {
1374	set bool $_settings($what)
1375	SendCmd "axis minticks all $bool"
1376	}
1377	"-axismode" {
1378	set mode [$itk_component(axisMode) value]
1379	set mode [$itk_component(axisMode) translate $mode]
1380	set _settings($what) $mode
1381	SendCmd "axis flymode $mode"
1382	}
1383	"-background" {
1384	set bgcolor [$itk_component(background) value]
1385	array set fgcolors {
1386	"black" "white"
1387	"white" "black"
1388	"grey" "black"
1389	}
1390	configure -plotbackground $bgcolor \
1391	-plotforeground $fgcolors($bgcolor)
1392	$itk_component(view) delete "legend"
1393	DrawLegend
1394	}
1395	"-colormap" {
1396	set _changed($what) 1
1397	StartBufferingCommands
1398	set color [$itk_component(colormap) value]
1399	set _settings($what) $color
1400	if { $color == "none" } {
1401	if { $_settings(-colormapvisible) } {
1402	SendCmd "contour3d colormode constant {}"
1403	set _settings(-colormapvisible) 0
1404	}
1405	} else {
1406	if { !$_settings(-colormapvisible) } {
1407	SendCmd [list contour3d colormode $_colorMode $_curFldName]
1408	set _settings(-colormapvisible) 1
1409	}
1410	SetCurrentColormap $color
1411	}
1412	StopBufferingCommands
1413	EventuallyRequestLegend
1414	}
1415	"-cutplaneedges" {
1416	set _changed($what) 1
1417	set bool $_settings($what)
1418	SendCmd "cutplane edges $bool"
1419	}
1420	"-cutplanelighting" {
1421	set _changed($what) 1
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 _changed($what) 1
1432	set bool $_settings($what)
1433	SendCmd "cutplane preinterp $bool"
1434	}
1435	"-cutplanesvisible" {
1436	set _changed($what) 1
1437	set bool $_settings($what)
1438	SendCmd "cutplane visible 0"
1439	if { $bool } {
1440	foreach tag [CurrentDatasets -visible] {
1441	SendCmd "cutplane visible $bool $tag"
1442	}
1443	}
1444	if { $bool } {
1445	Rappture::Tooltip::for $itk_component(cutplane) \
1446	"Hide the cutplanes"
1447	} else {
1448	Rappture::Tooltip::for $itk_component(cutplane) \
1449	"Show the cutplanes"
1450	}
1451	}
1452	"-cutplanewireframe" {
1453	set _changed($what) 1
1454	set bool $_settings($what)
1455	SendCmd "cutplane wireframe $bool"
1456	}
1457	"-field" {
1458	set label [$itk_component(field) value]
1459	set fname [$itk_component(field) translate $label]
1460	set _settings($what) $fname
1461	if { [info exists _fields($fname)] } {
1462	foreach { label units components } $_fields($fname) break
1463	if { $components > 1 } {
1464	set _colorMode vmag
1465	} else {
1466	set _colorMode scalar
1467	}
1468	set _curFldName $fname
1469	set _curFldLabel $label
1470	} else {
1471	puts stderr "unknown field \"$fname\""
1472	return
1473	}
1474	SendCmd [list dataset scalar $_curFldName]
1475	if { ![info exists _limits($_curFldName)] } {
1476	SendCmd "dataset maprange all"
1477	} else {
1478	if { $_settings(-customrange) } {
1479	set vmin [$itk_component(min) value]
1480	set vmax [$itk_component(max) value]
1481	} else {
1482	foreach { vmin vmax } $_limits($_curFldName) break
1483	# set the min / max gauges with limits from the field
1484	# the legend's min and max text will be updated
1485	# when the legend is redrawn in DrawLegend
1486	SetMinMaxGauges $vmin $vmax
1487	}
1488	SendCmd [list dataset maprange explicit $vmin $vmax $_curFldName]
1489	}
1490	SendCmd [list cutplane colormode $_colorMode $_curFldName]
1491	SendCmd [list contour3d colormode $_colorMode $_curFldName]
1492	GenerateContourList
1493	SendCmd [list contour3d contourlist $_contourList(values)]
1494	SendCmd "camera reset"
1495	DrawLegend
1496	}
1497	"-isolinecolor" {
1498	set color [$itk_component(isolinecolor) value]
1499	set _settings($what) $color
1500	DrawLegend
1501	}
1502	"-isosurfaceedges" {
1503	set _changed($what) 1
1504	set bool $_settings($what)
1505	SendCmd "contour3d edges $bool"
1506	}
1507	"-isosurfacelighting" {
1508	set _changed($what) 1
1509	set bool $_settings($what)
1510	SendCmd "contour3d lighting $bool"
1511	}
1512	"-isosurfaceopacity" {
1513	set _changed($what) 1
1514	set _settings($what) [expr $_widget($what) * 0.01]
1515	SendCmd "contour3d opacity $_settings($what)"
1516	}
1517	"-isosurfacevisible" {
1518	set _changed($what) 1
1519	set bool $_settings($what)
1520	SendCmd "contour3d visible 0"
1521	if { $bool } {
1522	foreach tag [CurrentDatasets -visible] {
1523	SendCmd "contour3d visible $bool $tag"
1524	}
1525	Rappture::Tooltip::for $itk_component(contour) \
1526	"Hide the isosurface"
1527	} else {
1528	Rappture::Tooltip::for $itk_component(contour) \
1529	"Show the isosurface"
1530	}
1531	}
1532	"-isosurfacewireframe" {
1533	set _changed($what) 1
1534	set bool $_settings($what)
1535	SendCmd "contour3d wireframe $bool"
1536	}
1537	"-legendvisible" {
1538	if { !$_settings($what) } {
1539	$itk_component(view) delete legend
1540	}
1541	DrawLegend
1542	}
1543	"-numcontours" {
1544	set _changed($what) 1
1545	set _settings($what) [$itk_component(numcontours) value]
1546	if { $_contourList(numLevels) != $_settings($what) } {
1547	set _contourList(numLevels) $_settings($what)
1548	EventuallyChangeContourLevels
1549	}
1550	}
1551	"-ortho" {
1552	set bool $_view($what)
1553	if { $bool } {
1554	SendCmd "camera mode ortho"
1555	} else {
1556	SendCmd "camera mode persp"
1557	}
1558	}
1559	"-outline" {
1560	set _changed($what) 1
1561	set bool $_settings($what)
1562	SendCmd "outline visible 0"
1563	if { $bool } {
1564	foreach tag [CurrentDatasets -visible] {
1565	SendCmd "outline visible $bool $tag"
1566	}
1567	}
1568	}
1569	"-range" {
1570	if { $_settings(-customrange) } {
1571	set vmin [$itk_component(min) value]
1572	set vmax [$itk_component(max) value]
1573	} else {
1574	foreach { vmin vmax } $_limits($_curFldName) break
1575	}
1576	GenerateContourList
1577	SendCmd [list contour3d contourlist $_contourList(values)]
1578	SendCmd [list dataset maprange explicit $vmin $vmax $_curFldName]
1579	DrawLegend
1580	}
1581	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1582	set _changed($what) 1
1583	set axis [string tolower [string range $what 1 1]]
1584	set bool $_settings($what)
1585	if { $bool } {
1586	$itk_component(${axis}position) configure -state normal \
1587	-troughcolor white
1588	} else {
1589	$itk_component(${axis}position) configure -state disabled \
1590	-troughcolor grey82
1591	}
1592	SendCmd "cutplane axis $axis $bool"
1593	}
1594	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1595	set _changed($what) 1
1596	set axis [string tolower [string range $what 1 1]]
1597	set pos [expr $_settings($what) * 0.01]
1598	SendCmd "cutplane slice ${axis} ${pos}"
1599	set _cutplanePending 0
1600	}
1601	"-xgrid" - "-ygrid" - "-zgrid" {
1602	set axis [string tolower [string range $what 1 1]]
1603	set bool $_settings($what)
1604	SendCmd "axis grid $axis $bool"
1605	}
1606	default {
1607	error "don't know how to fix $what"
1608	}
1609	}
1610	}
1611
1612	#
1613	# RequestLegend --
1614	#
1615	# Request a new legend from the server. The size of the legend
1616	# is determined from the height of the canvas.
1617	#
1618	# This should be called when
1619	# 1. A new current colormap is set.
1620	# 2. Window is resized.
1621	# 3. The limits of the data have changed. (Just need a redraw).
1622	# 4. Number of isolines have changed. (Just need a redraw).
1623	# 5. Legend becomes visible (Just need a redraw).
1624	#
1625	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1626	set _legendPending 0
1627	if { ![info exists _fields($_curFldName)] } {
1628	return
1629	}
1630	set fname $_curFldName
1631	set font "Arial 8"
1632	set lineht [font metrics $font -linespace]
1633	set w 12
1634	set h [expr {$_height - 2 * ($lineht + 2)}]
1635	if { $h < 1 } {
1636	return
1637	}
1638	if { [string match "component*" $fname] } {
1639	set title ""
1640	} else {
1641	if { [info exists _fields($fname)] } {
1642	foreach { title units } $_fields($fname) break
1643	if { $units != "" } {
1644	set title [format "%s (%s)" $title $units]
1645	}
1646	} else {
1647	set title $fname
1648	}
1649	}
1650	# If there's a title too, subtract one more line
1651	if { $title != "" } {
1652	incr h -$lineht
1653	}
1654	# Set the legend on the first dataset.
1655	if { $_currentColormap != "" } {
1656	set cmap $_currentColormap
1657	if { ![info exists _colormaps($cmap)] } {
1658	BuildColormap $cmap
1659	set _colormaps($cmap) 1
1660	}
1661	#SendCmd [list legend $cmap $_colorMode $_curFldName {} $w $h 0]
1662	SendCmd "legend2 $cmap $w $h"
1663	}
1664	}
1665
1666	# ----------------------------------------------------------------------
1667	# CONFIGURATION OPTION: -plotbackground
1668	# ----------------------------------------------------------------------
1669	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1670	if { [isconnected] } {
1671	set rgb [Color2RGB $itk_option(-plotbackground)]
1672	SendCmd "screen bgcolor $rgb"
1673	}
1674	}
1675
1676	# ----------------------------------------------------------------------
1677	# CONFIGURATION OPTION: -plotforeground
1678	# ----------------------------------------------------------------------
1679	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1680	if { [isconnected] } {
1681	set rgb [Color2RGB $itk_option(-plotforeground)]
1682	SendCmd "axis color all $rgb"
1683	SendCmd "outline color $rgb"
1684	SendCmd "cutplane color $rgb"
1685	}
1686	}
1687
1688	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1689	set fg [option get $itk_component(hull) font Font]
1690	#set bfg [option get $itk_component(hull) boldFont Font]
1691
1692	set inner [$itk_component(main) insert end \
1693	-title "Isosurface Settings" \
1694	-icon [Rappture::icon volume-on]]
1695	$inner configure -borderwidth 4
1696
1697	checkbutton $inner.contour \
1698	-text "Isosurfaces" \
1699	-variable [itcl::scope _settings(-isosurfacevisible)] \
1700	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1701	-font "Arial 9"
1702
1703	checkbutton $inner.wireframe \
1704	-text "Wireframe" \
1705	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1706	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1707	-font "Arial 9"
1708
1709	checkbutton $inner.lighting \
1710	-text "Enable Lighting" \
1711	-variable [itcl::scope _settings(-isosurfacelighting)] \
1712	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1713	-font "Arial 9"
1714
1715	checkbutton $inner.edges \
1716	-text "Edges" \
1717	-variable [itcl::scope _settings(-isosurfaceedges)] \
1718	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1719	-font "Arial 9"
1720
1721	checkbutton $inner.outline \
1722	-text "Outline" \
1723	-variable [itcl::scope _settings(-outline)] \
1724	-command [itcl::code $this AdjustSetting -outline] \
1725	-font "Arial 9"
1726
1727	checkbutton $inner.legend \
1728	-text "Legend" \
1729	-variable [itcl::scope _settings(-legendvisible)] \
1730	-command [itcl::code $this AdjustSetting -legendvisible] \
1731	-font "Arial 9"
1732
1733	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1734	itk_component add isolinecolor {
1735	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1736	}
1737	$inner.linecolor choices insert end \
1738	"black" "black" \
1739	"blue" "blue" \
1740	"cyan" "cyan" \
1741	"green" "green" \
1742	"grey" "grey" \
1743	"magenta" "magenta" \
1744	"orange" "orange" \
1745	"red" "red" \
1746	"white" "white" \
1747	"none" "none"
1748
1749	$itk_component(isolinecolor) value $_settings(-isolinecolor)
1750	bind $inner.linecolor <<Value>> \
1751	[itcl::code $this AdjustSetting -isolinecolor]
1752
1753	label $inner.background_l -text "Background" -font "Arial 9"
1754	itk_component add background {
1755	Rappture::Combobox $inner.background -width 10 -editable 0
1756	}
1757	$inner.background choices insert end \
1758	"black" "black" \
1759	"white" "white" \
1760	"grey" "grey"
1761
1762	$itk_component(background) value $_settings(-background)
1763	bind $inner.background <<Value>> \
1764	[itcl::code $this AdjustSetting -background]
1765
1766	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1767	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1768	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1769	-width 10 \
1770	-showvalue off \
1771	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1772	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
1773
1774	itk_component add field_l {
1775	label $inner.field_l -text "Field" -font "Arial 9"
1776	} {
1777	ignore -font
1778	}
1779	itk_component add field {
1780	Rappture::Combobox $inner.field -width 10 -editable 0
1781	}
1782	bind $inner.field <<Value>> \
1783	[itcl::code $this AdjustSetting -field]
1784
1785	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1786	itk_component add colormap {
1787	Rappture::Combobox $inner.colormap -width 10 -editable 0
1788	}
1789	$inner.colormap choices insert end [GetColormapList]
1790	$itk_component(colormap) value "BCGYR"
1791	bind $inner.colormap <<Value>> \
1792	[itcl::code $this AdjustSetting -colormap]
1793
1794	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1795	itk_component add numcontours {
1796	Rappture::Spinint $inner.numcontours \
1797	-min 0 -max 50 -font "arial 9"
1798	}
1799	$itk_component(numcontours) value $_settings(-numcontours)
1800	bind $itk_component(numcontours) <<Value>> \
1801	[itcl::code $this AdjustSetting -numcontours]
1802
1803	# add widgets for setting a custom range on the legend
1804
1805	itk_component add crange {
1806	checkbutton $inner.crange \
1807	-text "Use Custom Range:" \
1808	-variable [itcl::scope _settings(-customrange)] \
1809	-command [itcl::code $this ToggleCustomRange] \
1810	-font "Arial 9"
1811	}
1812
1813	itk_component add l_min {
1814	label $inner.l_min -text "Min" -font "Arial 9"
1815	}
1816	itk_component add min {
1817	Rappture::Gauge $inner.min -font "Arial 9" \
1818	-validatecommand [itcl::code $this LegendRangeValidate "" vmin]
1819	}
1820	bind $itk_component(min) <<Value>> \
1821	[itcl::code $this AdjustSetting -range]
1822
1823	itk_component add l_max {
1824	label $inner.l_max -text "Max" -font "Arial 9"
1825	}
1826	itk_component add max {
1827	Rappture::Gauge $inner.max -font "Arial 9" \
1828	-validatecommand [itcl::code $this LegendRangeValidate "" vmax]
1829	}
1830	bind $itk_component(max) <<Value>> \
1831	[itcl::code $this AdjustSetting -range]
1832
1833	$itk_component(min) configure -state disabled
1834	$itk_component(max) configure -state disabled
1835
1836	blt::table $inner \
1837	0,0 $inner.field_l -anchor w -pady 2 \
1838	0,1 $inner.field -anchor w -pady 2 -fill x \
1839	1,0 $inner.colormap_l -anchor w -pady 2 \
1840	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1841	2,0 $inner.linecolor_l -anchor w -pady 2 \
1842	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1843	3,0 $inner.background_l -anchor w -pady 2 \
1844	3,1 $inner.background -anchor w -pady 2 -fill x \
1845	4,0 $inner.numcontours_l -anchor w -pady 2 \
1846	4,1 $inner.numcontours -anchor w -pady 2 \
1847	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1848	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1849	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1850	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1851	9,0 $inner.legend -anchor w -pady 2 \
1852	10,0 $inner.opacity_l -anchor w -pady 2 \
1853	10,1 $inner.opacity -fill x -pady 2 -fill x \
1854	11,0 $inner.crange -anchor w -pady 2 -cspan 2 \
1855	12,0 $inner.l_min -anchor w -pady 2 \
1856	12,1 $inner.min -anchor w -pady 2 -fill x \
1857	13,0 $inner.l_max -anchor w -pady 2 \
1858	13,1 $inner.max -anchor w -pady 2 -fill x \
1859
1860	blt::table configure $inner r* c* -resize none
1861	blt::table configure $inner r14 c1 -resize expand
1862	}
1863
1864	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1865
1866	set fg [option get $itk_component(hull) font Font]
1867	#set bfg [option get $itk_component(hull) boldFont Font]
1868
1869	set inner [$itk_component(main) insert end \
1870	-title "Axis Settings" \
1871	-icon [Rappture::icon axis2]]
1872	$inner configure -borderwidth 4
1873
1874	checkbutton $inner.visible \
1875	-text "Axes" \
1876	-variable [itcl::scope _settings(-axesvisible)] \
1877	-command [itcl::code $this AdjustSetting -axesvisible] \
1878	-font "Arial 9"
1879
1880	checkbutton $inner.labels \
1881	-text "Axis Labels" \
1882	-variable [itcl::scope _settings(-axislabels)] \
1883	-command [itcl::code $this AdjustSetting -axislabels] \
1884	-font "Arial 9"
1885	label $inner.grid_l -text "Grid" -font "Arial 9"
1886	checkbutton $inner.xgrid \
1887	-text "X" \
1888	-variable [itcl::scope _settings(-xgrid)] \
1889	-command [itcl::code $this AdjustSetting -xgrid] \
1890	-font "Arial 9"
1891	checkbutton $inner.ygrid \
1892	-text "Y" \
1893	-variable [itcl::scope _settings(-ygrid)] \
1894	-command [itcl::code $this AdjustSetting -ygrid] \
1895	-font "Arial 9"
1896	checkbutton $inner.zgrid \
1897	-text "Z" \
1898	-variable [itcl::scope _settings(-zgrid)] \
1899	-command [itcl::code $this AdjustSetting -zgrid] \
1900	-font "Arial 9"
1901	checkbutton $inner.minorticks \
1902	-text "Minor Ticks" \
1903	-variable [itcl::scope _settings(-axisminorticks)] \
1904	-command [itcl::code $this AdjustSetting -axisminorticks] \
1905	-font "Arial 9"
1906
1907	label $inner.mode_l -text "Mode" -font "Arial 9"
1908
1909	itk_component add axisMode {
1910	Rappture::Combobox $inner.mode -width 10 -editable 0
1911	}
1912	$inner.mode choices insert end \
1913	"static_triad" "static" \
1914	"closest_triad" "closest" \
1915	"furthest_triad" "farthest" \
1916	"outer_edges" "outer"
1917	$itk_component(axisMode) value $_settings(-axismode)
1918	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1919
1920	blt::table $inner \
1921	0,0 $inner.visible -anchor w -cspan 4 \
1922	1,0 $inner.labels -anchor w -cspan 4 \
1923	2,0 $inner.minorticks -anchor w -cspan 4 \
1924	4,0 $inner.grid_l -anchor w \
1925	4,1 $inner.xgrid -anchor w \
1926	4,2 $inner.ygrid -anchor w \
1927	4,3 $inner.zgrid -anchor w \
1928	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1929	5,1 $inner.mode -fill x -cspan 3
1930
1931	blt::table configure $inner r* c* -resize none
1932	blt::table configure $inner r7 c6 -resize expand
1933	blt::table configure $inner r3 -height 0.125i
1934	}
1935
1936
1937	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1938	set inner [$itk_component(main) insert end \
1939	-title "Camera Settings" \
1940	-icon [Rappture::icon camera]]
1941	$inner configure -borderwidth 4
1942
1943	label $inner.view_l -text "view" -font "Arial 9"
1944	set f [frame $inner.view]
1945	foreach side { front back left right top bottom } {
1946	button $f.$side -image [Rappture::icon view$side] \
1947	-command [itcl::code $this SetOrientation $side]
1948	Rappture::Tooltip::for $f.$side "Change the view to $side"
1949	pack $f.$side -side left
1950	}
1951
1952	blt::table $inner \
1953	0,0 $inner.view_l -anchor e -pady 2 \
1954	0,1 $inner.view -anchor w -pady 2
1955	blt::table configure $inner r0 -resize none
1956
1957	set labels { qx qy qz qw xpan ypan zoom }
1958	set row 1
1959	foreach tag $labels {
1960	label $inner.${tag}label -text $tag -font "Arial 9"
1961	entry $inner.${tag} -font "Arial 9" -bg white \
1962	-textvariable [itcl::scope _view(-$tag)]
1963	bind $inner.${tag} <Return> \
1964	[itcl::code $this camera set -${tag}]
1965	bind $inner.${tag} <KP_Enter> \
1966	[itcl::code $this camera set -${tag}]
1967	blt::table $inner \
1968	$row,0 $inner.${tag}label -anchor e -pady 2 \
1969	$row,1 $inner.${tag} -anchor w -pady 2
1970	blt::table configure $inner r$row -resize none
1971	incr row
1972	}
1973	checkbutton $inner.ortho \
1974	-text "Orthographic Projection" \
1975	-variable [itcl::scope _view(-ortho)] \
1976	-command [itcl::code $this AdjustSetting -ortho] \
1977	-font "Arial 9"
1978	blt::table $inner \
1979	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1980	blt::table configure $inner r$row -resize none
1981	incr row
1982
1983	blt::table configure $inner c* -resize none
1984	blt::table configure $inner c2 -resize expand
1985	blt::table configure $inner r$row -resize expand
1986	}
1987
1988	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplanesTab {} {
1989
1990	set fg [option get $itk_component(hull) font Font]
1991
1992	set inner [$itk_component(main) insert end \
1993	-title "Cutplane Settings" \
1994	-icon [Rappture::icon cutbutton]]
1995
1996	$inner configure -borderwidth 4
1997
1998	checkbutton $inner.visible \
1999	-text "Cutplanes" \
2000	-variable [itcl::scope _settings(-cutplanesvisible)] \
2001	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2002	-font "Arial 9"
2003
2004	checkbutton $inner.wireframe \
2005	-text "Wireframe" \
2006	-variable [itcl::scope _settings(-cutplanewireframe)] \
2007	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
2008	-font "Arial 9"
2009
2010	checkbutton $inner.lighting \
2011	-text "Enable Lighting" \
2012	-variable [itcl::scope _settings(-cutplanelighting)] \
2013	-command [itcl::code $this AdjustSetting -cutplanelighting] \
2014	-font "Arial 9"
2015
2016	checkbutton $inner.edges \
2017	-text "Edges" \
2018	-variable [itcl::scope _settings(-cutplaneedges)] \
2019	-command [itcl::code $this AdjustSetting -cutplaneedges] \
2020	-font "Arial 9"
2021
2022	checkbutton $inner.preinterp \
2023	-text "Interpolate Scalars" \
2024	-variable [itcl::scope _settings(-cutplanepreinterp)] \
2025	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
2026	-font "Arial 9"
2027
2028	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2029	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2030	-variable [itcl::scope _widget(-cutplaneopacity)] \
2031	-width 10 \
2032	-showvalue off \
2033	-command [itcl::code $this AdjustSetting -cutplaneopacity]
2034	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
2035
2036	# X-value slicer...
2037	itk_component add xbutton {
2038	Rappture::PushButton $inner.xbutton \
2039	-onimage [Rappture::icon x-cutplane-red] \
2040	-offimage [Rappture::icon x-cutplane-red] \
2041	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2042	-variable [itcl::scope _settings(-xcutplanevisible)] \
2043	}
2044	Rappture::Tooltip::for $itk_component(xbutton) \
2045	"Toggle the X-axis cutplane on/off"
2046	$itk_component(xbutton) select
2047	itk_component add xposition {
2048	::scale $inner.xval -from 100 -to 0 \
2049	-width 10 -orient vertical -showvalue 1 \
2050	-borderwidth 1 -highlightthickness 0 \
2051	-command [itcl::code $this EventuallySetCutplane x] \
2052	-variable [itcl::scope _settings(-xcutplaneposition)] \
2053	-foreground red2 -font "Arial 9 bold"
2054	} {
2055	usual
2056	ignore -borderwidth -highlightthickness -foreground -font -background
2057	}
2058	# Set the default cutplane value before disabling the scale.
2059	$itk_component(xposition) set 50
2060	$itk_component(xposition) configure -state disabled
2061	Rappture::Tooltip::for $itk_component(xposition) \
2062	"@[itcl::code $this Slice tooltip x]"
2063
2064	# Y-value slicer...
2065	itk_component add ybutton {
2066	Rappture::PushButton $inner.ybutton \
2067	-onimage [Rappture::icon y-cutplane-green] \
2068	-offimage [Rappture::icon y-cutplane-green] \
2069	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2070	-variable [itcl::scope _settings(-ycutplanevisible)] \
2071	}
2072	Rappture::Tooltip::for $itk_component(ybutton) \
2073	"Toggle the Y-axis cutplane on/off"
2074	$itk_component(ybutton) select
2075
2076	itk_component add yposition {
2077	::scale $inner.yval -from 100 -to 0 \
2078	-width 10 -orient vertical -showvalue 1 \
2079	-borderwidth 1 -highlightthickness 0 \
2080	-command [itcl::code $this EventuallySetCutplane y] \
2081	-variable [itcl::scope _settings(-ycutplaneposition)] \
2082	-foreground green3 -font "Arial 9 bold"
2083	} {
2084	usual
2085	ignore -borderwidth -highlightthickness -foreground -font
2086	}
2087	Rappture::Tooltip::for $itk_component(yposition) \
2088	"@[itcl::code $this Slice tooltip y]"
2089	# Set the default cutplane value before disabling the scale.
2090	$itk_component(yposition) set 50
2091	$itk_component(yposition) configure -state disabled
2092
2093	# Z-value slicer...
2094	itk_component add zbutton {
2095	Rappture::PushButton $inner.zbutton \
2096	-onimage [Rappture::icon z-cutplane-blue] \
2097	-offimage [Rappture::icon z-cutplane-blue] \
2098	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2099	-variable [itcl::scope _settings(-zcutplanevisible)] \
2100	} {
2101	usual
2102	ignore -foreground
2103	}
2104	Rappture::Tooltip::for $itk_component(zbutton) \
2105	"Toggle the Z-axis cutplane on/off"
2106	$itk_component(zbutton) select
2107
2108	itk_component add zposition {
2109	::scale $inner.zval -from 100 -to 0 \
2110	-width 10 -orient vertical -showvalue 1 \
2111	-borderwidth 1 -highlightthickness 0 \
2112	-command [itcl::code $this EventuallySetCutplane z] \
2113	-variable [itcl::scope _settings(-zcutplaneposition)] \
2114	-foreground blue3 -font "Arial 9 bold"
2115	} {
2116	usual
2117	ignore -borderwidth -highlightthickness -foreground -font
2118	}
2119	$itk_component(zposition) set 50
2120	$itk_component(zposition) configure -state disabled
2121	Rappture::Tooltip::for $itk_component(zposition) \
2122	"@[itcl::code $this Slice tooltip z]"
2123
2124	blt::table $inner \
2125	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2126	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2127	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2128	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2129	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2130	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2131	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2132	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2133	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2134	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2135	6,1 $inner.xval -fill y -rspan 4 \
2136	6,2 $inner.yval -fill y -rspan 4 \
2137	6,3 $inner.zval -fill y -rspan 4 \
2138
2139	blt::table configure $inner r* c* -resize none
2140	blt::table configure $inner r9 c4 -resize expand
2141	}
2142
2143	#
2144	# camera --
2145	#
2146	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2147	switch -- $option {
2148	"show" {
2149	puts [array get _view]
2150	}
2151	"set" {
2152	set what [lindex $args 0]
2153	set x $_view($what)
2154	set code [catch { string is double $x } result]
2155	if { $code != 0 \|\| !$result } {
2156	return
2157	}
2158	switch -- $what {
2159	"-ortho" {
2160	if {$_view($what)} {
2161	SendCmd "camera mode ortho"
2162	} else {
2163	SendCmd "camera mode persp"
2164	}
2165	}
2166	"-xpan" - "-ypan" {
2167	PanCamera
2168	}
2169	"-qx" - "-qy" - "-qz" - "-qw" {
2170	set q [ViewToQuaternion]
2171	$_arcball quaternion $q
2172	EventuallyRotate $q
2173	}
2174	"-zoom" {
2175	SendCmd "camera zoom $_view($what)"
2176	}
2177	}
2178	}
2179	}
2180	}
2181
2182	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2183	set bytes ""
2184	foreach dataobj [get] {
2185	foreach cname [$dataobj components] {
2186	set tag $dataobj-$cname
2187	set contents [$dataobj vtkdata $cname]
2188	append bytes "$contents\n"
2189	}
2190	}
2191	return [list .vtk $bytes]
2192	}
2193
2194	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2195	if { [image width $_image(download)] > 0 &&
2196	[image height $_image(download)] > 0 } {
2197	set bytes [$_image(download) data -format "jpeg -quality 100"]
2198	set bytes [Rappture::encoding::decode -as b64 $bytes]
2199	return [list .jpg $bytes]
2200	}
2201	return ""
2202	}
2203
2204	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2205	Rappture::Balloon $popup \
2206	-title "[Rappture::filexfer::label downloadWord] as..."
2207	set inner [$popup component inner]
2208	label $inner.summary -text "" -anchor w
2209	radiobutton $inner.vtk_button -text "VTK data file" \
2210	-variable [itcl::scope _downloadPopup(format)] \
2211	-font "Arial 9" \
2212	-value vtk
2213	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2214	radiobutton $inner.image_button -text "Image File" \
2215	-variable [itcl::scope _downloadPopup(format)] \
2216	-font "Arial 9" \
2217	-value image
2218	Rappture::Tooltip::for $inner.image_button \
2219	"Save as digital image."
2220
2221	button $inner.ok -text "Save" \
2222	-highlightthickness 0 -pady 2 -padx 3 \
2223	-command $command \
2224	-compound left \
2225	-image [Rappture::icon download]
2226
2227	button $inner.cancel -text "Cancel" \
2228	-highlightthickness 0 -pady 2 -padx 3 \
2229	-command [list $popup deactivate] \
2230	-compound left \
2231	-image [Rappture::icon cancel]
2232
2233	blt::table $inner \
2234	0,0 $inner.summary -cspan 2 \
2235	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2236	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2237	4,1 $inner.cancel -width .9i -fill y \
2238	4,0 $inner.ok -padx 2 -width .9i -fill y
2239	blt::table configure $inner r3 -height 4
2240	blt::table configure $inner r4 -pady 4
2241	raise $inner.image_button
2242	$inner.vtk_button invoke
2243	return $inner
2244	}
2245
2246	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2247	DebugTrace "Enter"
2248	# Parse style string.
2249	set tag $dataobj-$comp
2250	array set style {
2251	-color BCGYR
2252	-constcolor white
2253	-cutplaneedges 0
2254	-cutplanelighting 1
2255	-cutplaneopacity 1.0
2256	-cutplanepreinterp 1
2257	-cutplanesvisible 0
2258	-cutplanewireframe 0
2259	-edgecolor black
2260	-edges 0
2261	-isosurfacevisible 1
2262	-levels 10
2263	-lighting 1
2264	-linewidth 1.0
2265	-opacity 0.6
2266	-outline 0
2267	-wireframe 0
2268	-xcutplaneposition 50
2269	-xcutplanevisible 1
2270	-ycutplaneposition 50
2271	-ycutplanevisible 1
2272	-zcutplaneposition 50
2273	-zcutplanevisible 1
2274	}
2275	if { $style(-levels) == 1 } {
2276	set style(-opacity) 1.0
2277	}
2278	set style(-constcolor) $itk_option(-plotforeground)
2279	array set style [$dataobj style $comp]
2280	#DebugTrace [array get style]
2281
2282	# This is too complicated. We want to set the colormap, number of
2283	# isolines and opacity for the dataset. They can be the default values,
2284	# the style hints loaded with the dataset, or set by user controls. As
2285	# datasets get loaded, they first use the defaults that are overidden
2286	# by the style hints. If the user changes the global controls, then that
2287	# overrides everything else. I don't know what it means when global
2288	# controls are specified as style hints by each dataset. It complicates
2289	# the code to handle aberrant cases.
2290
2291	if { $_changed(-isosurfaceedges) } {
2292	set style(-edges) $_settings(-isosurfaceedges)
2293	}
2294	if { $_changed(-isosurfacelighting) } {
2295	set style(-lighting) $_settings(-isosurfacelighting)
2296	}
2297	if { $_changed(-isosurfaceopacity) } {
2298	set style(-opacity) $_settings(-isosurfaceopacity)
2299	}
2300	if { $_changed(-isosurfacewireframe) } {
2301	set style(-wireframe) $_settings(-isosurfacewireframe)
2302	}
2303	if { $_changed(-numcontours) } {
2304	set style(-levels) $_settings(-numcontours)
2305	}
2306	if { $_changed(-colormap) } {
2307	set style(-color) $_settings(-colormap)
2308	}
2309	if { $_currentColormap == "" } {
2310	$itk_component(colormap) value $style(-color)
2311	}
2312	if { $_contourList(numLevels) != $style(-levels) } {
2313	if { [llength $style(-levels)] > 1 } {
2314	set _contourList(reqValues) [lsort -real $style(-levels)]
2315	} else {
2316	set _settings(-numcontours) $style(-levels)
2317	$itk_component(numcontours) value $style(-levels)
2318	set _contourList(numLevels) $style(-levels)
2319	}
2320	EventuallyChangeContourLevels
2321	}
2322	foreach setting {-outline -isosurfacevisible -cutplanesvisible \
2323	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
2324	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
2325	-cutplaneedges -cutplanelighting -cutplaneopacity \
2326	-cutplanepreinterp -cutplanewireframe} {
2327	if {$_changed($setting)} {
2328	# User-modified UI setting overrides style
2329	set style($setting) $_settings($setting)
2330	} else {
2331	# Set UI control to style setting (tool provided or default)
2332	set _settings($setting) $style($setting)
2333	}
2334	}
2335
2336	SendCmd "cutplane add $tag"
2337	SendCmd "cutplane color [Color2RGB $style(-constcolor)] $tag"
2338	foreach axis {x y z} {
2339	set pos [expr $style(-${axis}cutplaneposition) * 0.01]
2340	set visible $style(-${axis}cutplanevisible)
2341	SendCmd "cutplane slice $axis $pos $tag"
2342	SendCmd "cutplane axis $axis $visible $tag"
2343	}
2344	SendCmd "cutplane edges $style(-cutplaneedges) $tag"
2345	SendCmd "cutplane lighting $style(-cutplanelighting) $tag"
2346	SendCmd "cutplane opacity $style(-cutplaneopacity) $tag"
2347	set _widget(-cutplaneopacity) [expr $style(-cutplaneopacity) * 100]
2348	SendCmd "cutplane preinterp $style(-cutplanepreinterp) $tag"
2349	SendCmd "cutplane wireframe $style(-cutplanewireframe) $tag"
2350	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2351
2352	SendCmd "outline add $tag"
2353	SendCmd "outline color [Color2RGB $style(-constcolor)] $tag"
2354	SendCmd "outline visible $style(-outline) $tag"
2355
2356	GenerateContourList
2357	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2358	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2359	SendCmd "contour3d edges $style(-edges) $tag"
2360	set _settings(-isosurfaceedges) $style(-edges)
2361	SendCmd "contour3d color [Color2RGB $style(-constcolor)] $tag"
2362	SendCmd "contour3d lighting $style(-lighting) $tag"
2363	set _settings(-isosurfacelighting) $style(-lighting)
2364	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2365	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2366	SendCmd "contour3d opacity $style(-opacity) $tag"
2367	set _settings(-isosurfaceopacity) $style(-opacity)
2368	set _widget(-isosurfaceopacity) [expr $style(-opacity) * 100]
2369	SetCurrentColormap $style(-color)
2370	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2371	set _settings(-isosurfacewireframe) $style(-wireframe)
2372	}
2373
2374	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2375	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2376	return 0
2377	}
2378	return 1
2379	}
2380
2381	#
2382	# EnterLegend --
2383	#
2384	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2385	SetLegendTip $x $y
2386	}
2387
2388	#
2389	# MotionLegend --
2390	#
2391	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2392	Rappture::Tooltip::tooltip cancel
2393	set c $itk_component(view)
2394	set cw [winfo width $c]
2395	set ch [winfo height $c]
2396	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2397	SetLegendTip $x $y
2398	}
2399	}
2400
2401	#
2402	# LeaveLegend --
2403	#
2404	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2405	Rappture::Tooltip::tooltip cancel
2406	.rappturetooltip configure -icon ""
2407	}
2408
2409	# ----------------------------------------------------------------------
2410	# USAGE: LegendB1Motion press <x> <y>
2411	# USAGE: LegendB1Motion motion <x> <y>
2412	# USAGE: LegendB1Motion release <x> <y>
2413	#
2414	# Manage actions for Button 1 presses that happen over the legend.
2415	# Pressing mouse Button 1 on the legend sends a command to the
2416	# visualization server to show a specific isosurface.
2417	# ----------------------------------------------------------------------
2418	itcl::body Rappture::VtkIsosurfaceViewer::LegendB1Motion { status x y } {
2419
2420	switch -- $status {
2421	"press" {
2422	DisableMouseRotationBindings
2423	LegendProbeSingleContour $x $y
2424	}
2425	"motion" {
2426	DisableMouseRotationBindings
2427	LegendProbeSingleContour $x $y
2428	}
2429	"release" {
2430	AdjustSetting -range
2431	SetupMouseRotationBindings
2432	}
2433	default {
2434	error "bad option \"$option\": should be one of press, motion, release."
2435	}
2436	}
2437	}
2438
2439	# ----------------------------------------------------------------------
2440	# USAGE: LegendPointToValue <x> <y>
2441	#
2442	# Convert an x,y point on the legend to a numeric field value.
2443	# ----------------------------------------------------------------------
2444	itcl::body Rappture::VtkIsosurfaceViewer::LegendPointToValue { x y } {
2445	set fname $_curFldName
2446
2447	set font "Arial 8"
2448	set lineht [font metrics $font -linespace]
2449
2450	set ih [image height $_image(legend)]
2451	set iy [expr $y - ($lineht + 2)]
2452
2453	# Compute the value of the point
2454	if { [info exists _limits($fname)] } {
2455	if { $_settings(-customrange) } {
2456	set vmin [$itk_component(min) value]
2457	set vmax [$itk_component(max) value]
2458	} else {
2459	foreach { vmin vmax } $_limits($fname) break
2460	}
2461	set t [expr 1.0 - (double($iy) / double($ih-1))]
2462	set value [expr $t * ($vmax - $vmin) + $vmin]
2463	} else {
2464	set value 0.0
2465	}
2466	return $value
2467	}
2468
2469	# ----------------------------------------------------------------------
2470	# USAGE: LegendProbeSingleContour <x> <y>
2471	#
2472	# Calculate the isosurface value for the x,y point and send a commands
2473	# to the visualization server to show that isosurface.
2474	# ----------------------------------------------------------------------
2475	itcl::body Rappture::VtkIsosurfaceViewer::LegendProbeSingleContour { x y } {
2476
2477	set value [LegendPointToValue $x $y]
2478	SendCmd [list contour3d contourlist $value]
2479	}
2480
2481	#
2482	# SetLegendTip --
2483	#
2484	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2485	set fname $_curFldName
2486	set c $itk_component(view)
2487	set w [winfo width $c]
2488	set h [winfo height $c]
2489
2490	set font "Arial 8"
2491	set lineht [font metrics $font -linespace]
2492
2493	set ih [image height $_image(legend)]
2494	set iy [expr $y - ($lineht + 2)]
2495
2496	if { [string match "component*" $fname] } {
2497	set title ""
2498	} else {
2499	if { [info exists _fields($fname)] } {
2500	foreach { title units } $_fields($fname) break
2501	if { $units != "" } {
2502	set title [format "%s (%s)" $title $units]
2503	}
2504	} else {
2505	set title $fname
2506	}
2507	}
2508	# If there's a legend title, increase the offset by the line height.
2509	if { $title != "" } {
2510	incr iy -$lineht
2511	}
2512	# Make a swatch of the selected color
2513	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2514	return
2515	}
2516	if { ![info exists _image(swatch)] } {
2517	set _image(swatch) [image create photo -width 24 -height 24]
2518	}
2519	set color [eval format "\#%02x%02x%02x" $pixel]
2520	$_image(swatch) put black -to 0 0 23 23
2521	$_image(swatch) put $color -to 1 1 22 22
2522	.rappturetooltip configure -icon $_image(swatch)
2523
2524	# Compute the value of the point
2525	set value [LegendPointToValue $x $y]
2526
2527	# Setup the location of the tooltip
2528	set tx [expr $x + 15]
2529	set ty [expr $y - 5]
2530
2531	# Setup the text for the tooltip
2532	if { [info exists _isolines($y)] } {
2533	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2534	} else {
2535	Rappture::Tooltip::text $c [format "$title %g" $value]
2536	}
2537
2538	# Show the tooltip
2539	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2540	}
2541
2542	# ----------------------------------------------------------------------
2543	# USAGE: Slice move x\|y\|z <newval>
2544	#
2545	# Called automatically when the user drags the slider to move the
2546	# cut plane that slices 3D data. Gets the current value from the
2547	# slider and moves the cut plane to the appropriate point in the
2548	# data set.
2549	# ----------------------------------------------------------------------
2550	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2551	switch -- $option {
2552	"move" {
2553	set axis [lindex $args 0]
2554	set newval [lindex $args 1]
2555	if {[llength $args] != 2} {
2556	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2557	}
2558	set newpos [expr {0.01*$newval}]
2559	SendCmd "cutplane slice $axis $newpos"
2560	}
2561	"tooltip" {
2562	set axis [lindex $args 0]
2563	set val [$itk_component(${axis}position) get]
2564	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2565	}
2566	default {
2567	error "bad option \"$option\": should be axis, move, or tooltip"
2568	}
2569	}
2570	}
2571
2572	#
2573	# ReceiveLegend --
2574	#
2575	# Invoked automatically whenever the "legend" command comes in from
2576	# the rendering server. Indicates that binary image data with the
2577	# specified <size> will follow.
2578	#
2579	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2580	DebugTrace "Enter"
2581	set _title $title
2582	regsub {$mag$} $title "" _title
2583	if { [IsConnected] } {
2584	set bytes [ReceiveBytes $size]
2585	if { ![info exists _image(legend)] } {
2586	set _image(legend) [image create photo]
2587	}
2588	$_image(legend) configure -data $bytes
2589	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2590	if { [catch {DrawLegend} errs] != 0 } {
2591	global errorInfo
2592	puts stderr "errs=$errs errorInfo=$errorInfo"
2593	}
2594	}
2595	}
2596
2597	#
2598	# DrawLegend --
2599	#
2600	# Draws the legend on the canvas on the right side of the plot area.
2601	#
2602	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2603	set fname $_curFldName
2604	set c $itk_component(view)
2605	set w [winfo width $c]
2606	set h [winfo height $c]
2607	set font "Arial 8"
2608	set lineht [font metrics $font -linespace]
2609
2610	if { [string match "component*" $fname] } {
2611	set title ""
2612	} else {
2613	if { [info exists _fields($fname)] } {
2614	foreach { title units } $_fields($fname) break
2615	if { $units != "" } {
2616	set title [format "%s (%s)" $title $units]
2617	}
2618	} else {
2619	set title $fname
2620	}
2621	}
2622	set x [expr $w - 2]
2623	if { !$_settings(-legendvisible) } {
2624	$c delete legend
2625	return
2626	}
2627	if { [$c find withtag "legend"] == "" } {
2628	set y 2
2629	# If there's a legend title, create a text item for the title.
2630	$c create text $x $y \
2631	-anchor ne \
2632	-fill $itk_option(-plotforeground) -tags "title legend" \
2633	-font $font
2634	if { $title != "" } {
2635	incr y $lineht
2636	}
2637	$c create text $x $y \
2638	-anchor ne \
2639	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2640	-font $font
2641	incr y $lineht
2642	$c create image $x $y \
2643	-anchor ne \
2644	-image $_image(legend) -tags "colormap legend"
2645	$c create rectangle $x $y 1 1 \
2646	-fill "" -outline "" -tags "sensor legend"
2647	$c create text $x [expr {$h-2}] \
2648	-anchor se \
2649	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2650	-font $font
2651	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2652	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2653	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2654	# $c bind sensor <ButtonPress-1> [itcl::code $this LegendB1Motion press %x %y]
2655	# $c bind sensor <B1-Motion> [itcl::code $this LegendB1Motion motion %x %y]
2656	# $c bind sensor <ButtonRelease-1> [itcl::code $this LegendB1Motion release %x %y]
2657	}
2658	$c delete isoline
2659	set x2 $x
2660	set iw [image width $_image(legend)]
2661	set ih [image height $_image(legend)]
2662	set x1 [expr $x2 - ($iw*12)/10]
2663	set color $_settings(-isolinecolor)
2664	# Draw the isolines on the legend.
2665	array unset _isolines
2666	if { $color != "none" && [info exists _limits($_curFldName)] &&
2667	$_settings(-numcontours) > 0 } {
2668
2669	if { $_settings(-customrange) } {
2670	set vmin [$itk_component(min) value]
2671	set vmax [$itk_component(max) value]
2672	} else {
2673	foreach { vmin vmax } $_limits($_curFldName) break
2674	}
2675	set range [expr double($vmax - $vmin)]
2676	if { $range <= 0.0 } {
2677	set range 1.0; # Min is greater or equal to max.
2678	}
2679	set tags "isoline legend"
2680	set offset [expr 2 + $lineht]
2681	if { $title != "" } {
2682	incr offset $lineht
2683	}
2684	foreach value $_contourList(values) {
2685	set norm [expr 1.0 - (($value - $vmin) / $range)]
2686	set y1 [expr int(round(($norm * $ih) + $offset))]
2687	for { set off 0 } { $off < 3 } { incr off } {
2688	set _isolines([expr $y1 + $off]) $value
2689	set _isolines([expr $y1 - $off]) $value
2690	}
2691	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2692	}
2693	}
2694
2695	$c bind title <ButtonPress> [itcl::code $this LegendTitleAction post]
2696	$c bind title <Enter> [itcl::code $this LegendTitleAction enter]
2697	$c bind title <Leave> [itcl::code $this LegendTitleAction leave]
2698	# Reset the item coordinates according the current size of the plot.
2699	$c itemconfigure title -text $title
2700	if { [info exists _limits($_curFldName)] } {
2701	if { $_settings(-customrange) } {
2702	set vmin [$itk_component(min) value]
2703	set vmax [$itk_component(max) value]
2704	} else {
2705	foreach { vmin vmax } $_limits($_curFldName) break
2706	}
2707	$c itemconfigure vmin -text [format %g $vmin]
2708	$c itemconfigure vmax -text [format %g $vmax]
2709	}
2710	set y 2
2711	# If there's a legend title, move the title to the correct position
2712	if { $title != "" } {
2713	$c itemconfigure title -text $title
2714	$c coords title $x $y
2715	incr y $lineht
2716	$c raise title
2717	}
2718	$c coords vmax $x $y
2719	incr y $lineht
2720	$c coords colormap $x $y
2721	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2722	$c raise sensor
2723	$c coords vmin $x [expr {$h - 2}]
2724
2725	$c bind vmin <ButtonPress> [itcl::code $this LegendRangeAction popup vmin]
2726	$c bind vmin <Enter> [itcl::code $this LegendRangeAction enter vmin]
2727	$c bind vmin <Leave> [itcl::code $this LegendRangeAction leave vmin]
2728
2729	$c bind vmax <ButtonPress> [itcl::code $this LegendRangeAction popup vmax]
2730	$c bind vmax <Enter> [itcl::code $this LegendRangeAction enter vmax]
2731	$c bind vmax <Leave> [itcl::code $this LegendRangeAction leave vmax]
2732	}
2733
2734	# ----------------------------------------------------------------------
2735	# USAGE: LegendTitleAction post
2736	# USAGE: LegendTitleAction enter
2737	# USAGE: LegendTitleAction leave
2738	# USAGE: LegendTitleAction save
2739	#
2740	# Used internally to handle the dropdown list for the fields menu combobox.
2741	# The post option is invoked when the field title is pressed to launch the
2742	# dropdown. The enter option is invoked when the user mouses over the field
2743	# title. The leave option is invoked when the user moves the mouse away
2744	# from the field title. The save option is invoked whenever there is a
2745	# selection from the list, to alert the visualization server.
2746	# ----------------------------------------------------------------------
2747	itcl::body Rappture::VtkIsosurfaceViewer::LegendTitleAction {option} {
2748	set c $itk_component(view)
2749	switch -- $option {
2750	post {
2751	foreach { x1 y1 x2 y2 } [$c bbox title] break
2752	set cw [winfo width $itk_component(view)]
2753	set mw [winfo reqwidth $itk_component(fieldmenu)]
2754	set x1 [expr $cw - $mw]
2755	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2756	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2757	tk_popup $itk_component(fieldmenu) $x $y
2758	}
2759	enter {
2760	$c itemconfigure title -fill red
2761	}
2762	leave {
2763	$c itemconfigure title -fill $itk_option(-plotforeground)
2764	}
2765	save {
2766	$itk_component(field) value $_curFldLabel
2767	AdjustSetting -field
2768	}
2769	default {
2770	error "bad option \"$option\": should be post, enter, leave or save"
2771	}
2772	}
2773	}
2774
2775	# ----------------------------------------------------------------------
2776	# USAGE: LegendRangeValidate <widget> <which> <value>
2777	#
2778	# Used internally to validate a legend range min/max value.
2779	# Returns a boolean value telling if <value> was accepted (1) or rejected (0)
2780	# If the value is rejected, a tooltip/warning message is popped up
2781	# near the widget that asked for the validation, specified by <widget>
2782	#
2783	# <widget> is the widget where a tooltip/warning message should show up on
2784	# <which> is either "vmin" or "vmax".
2785	# <value> is the value to be validated.
2786	# ----------------------------------------------------------------------
2787	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeValidate {widget which value} {
2788	#check for a valid value
2789	if {[string is double $value] != 1} {
2790	set msg "should be valid number"
2791	if {$widget != ""} {
2792	Rappture::Tooltip::cue $widget $msg
2793	} else {
2794	# error "bad value \"$value\": $msg"
2795	error $msg
2796	}
2797	return 0
2798	}
2799
2800	switch -- $which {
2801	vmin {
2802	# check for min > max
2803	if {$value > [$itk_component(max) value]} {
2804	set msg "min > max, change max first"
2805	if {$widget != ""} {
2806	Rappture::Tooltip::cue $widget $msg
2807	} else {
2808	# error "bad value \"$value\": $msg"
2809	error $msg
2810	}
2811	return 0
2812	}
2813	}
2814	vmax {
2815	# check for max < min
2816	if {$value < [$itk_component(min) value]} {
2817	set msg "max < min, change min first"
2818	if {$widget != ""} {
2819	Rappture::Tooltip::cue $widget $msg
2820	} else {
2821	# error "bad value \"$value\": $msg"
2822	error $msg
2823	}
2824	return 0
2825	}
2826	}
2827	default {
2828	error "bad option \"$which\": should be vmin, vmax"
2829	}
2830	}
2831	}
2832
2833	itcl::body Rappture::VtkIsosurfaceViewer::MouseOver2Which {} {
2834	switch -- $_mouseOver {
2835	vmin {
2836	set which min
2837	}
2838	vmax {
2839	set which max
2840	}
2841	default {
2842	error "bad _mouseOver \"$_mouseOver\": should be vmin, vmax"
2843	}
2844	}
2845	return $which
2846	}
2847
2848	# ----------------------------------------------------------------------
2849	# USAGE: LegendRangeAction enter <which>
2850	# USAGE: LegendRangeAction leave <which>
2851	#
2852	# USAGE: LegendRangeAction popup <which>
2853	# USAGE: LegendRangeAction activate
2854	# USAGE: LegendRangeAction validate <value>
2855	# USAGE: LegendRangeAction apply <value>
2856	#
2857	# Used internally to handle the mouseover and popup entry for the field range
2858	# inputs. The enter option is invoked when the user moves the mouse over the
2859	# min or max field range. The leave option is invoked when the user moves the
2860	# mouse away from the min or max field range. The popup option is invoked when
2861	# the user click's on a field range. The popup option stores internally which
2862	# widget is requesting a popup ( in the _mouseOver variable) and calls the
2863	# activate command of the widget. The widget's activate command calls back to
2864	# this method to get the xywh dimensions of the popup editor. After the user
2865	# changes focus or sets the value in the editor, the editor calls this methods
2866	# validate and apply options to set the value.
2867	# ----------------------------------------------------------------------
2868	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeAction {option args} {
2869	set c $itk_component(view)
2870
2871	switch -- $option {
2872	enter {
2873	set which [lindex $args 0]
2874	$c itemconfigure $which -fill red
2875	}
2876	leave {
2877	set which [lindex $args 0]
2878	$c itemconfigure $which -fill $itk_option(-plotforeground)
2879	}
2880	popup {
2881	DisableMouseRotationBindings
2882	set which [lindex $args 0]
2883	set _mouseOver $which
2884	$itk_component(editor) activate
2885	}
2886	activate {
2887	foreach { x1 y1 x2 y2 } [$c bbox $_mouseOver] break
2888	set which [MouseOver2Which]
2889	set info(text) [$itk_component($which) value]
2890	set info(x) [expr $x1 + [winfo rootx $c]]
2891	set info(y) [expr $y1 + [winfo rooty $c]]
2892	set info(w) [expr $x2 - $x1]
2893	set info(h) [expr $y2 - $y1]
2894	return [array get info]
2895	}
2896	validate {
2897	if {[llength $args] != 1} {
2898	error "wrong # args: should be \"editor validate value\""
2899	}
2900
2901	set value [lindex $args 0]
2902	if {[LegendRangeValidate $itk_component(editor) $_mouseOver $value] == 0} {
2903	return 0
2904	}
2905
2906	# value was good, apply it
2907	# reset the mouse rotation bindings
2908	SetupMouseRotationBindings
2909	}
2910	apply {
2911	if {[llength $args] != 1} {
2912	error "wrong # args: should be \"editor apply value\""
2913	}
2914	set value [string trim [lindex $args 0]]
2915
2916	set which [MouseOver2Which]
2917
2918	# only set custom range if value changed
2919	if {[$itk_component($which) value] != $value} {
2920	# set the flag stating the custom range came from the legend
2921	# change the value in the gauge
2922	# turn on crange to enable the labels and gauges
2923	# call AdjustSetting -range (inside ToggleCustomRange)
2924	# to update drawing and legend
2925	set _customRangeClick 0
2926	$itk_component($which) value $value
2927	$itk_component(crange) select
2928	ToggleCustomRange
2929	}
2930	}
2931	default {
2932	error "bad option \"$option\": should be enter, leave, activate, validate, apply"
2933	}
2934	}
2935	}
2936
2937	# ----------------------------------------------------------------------
2938	# USAGE: ToggleCustomRange
2939	#
2940	# Called whenever the custom range is turned on or off. Used to save
2941	# the custom min and custom max set by the user. When the -customrange
2942	# setting is turned on, the range min and range max gauges are set
2943	# with the last value set by the user, or the default range if no
2944	# previous min and max were set.
2945	#
2946	# When the custom range is turned on, we check how it was turned on
2947	# by querying _customRangeClick. If the variable is 1, this means
2948	# the user clicked the crange checkbutton and we should pull the
2949	# custom range values from our backup variables. If the variable is 0,
2950	# the custom range was enabled through the user manipulating the
2951	# min and max value in the legend.
2952	# ----------------------------------------------------------------------
2953	itcl::body Rappture::VtkIsosurfaceViewer::ToggleCustomRange {args} {
2954	if { ! $_settings(-customrange) } {
2955	# custom range was turned off
2956
2957	# disable the min/max labels and gauge widgets
2958	$itk_component(l_min) configure -state disabled
2959	$itk_component(min) configure -state disabled
2960	$itk_component(l_max) configure -state disabled
2961	$itk_component(max) configure -state disabled
2962
2963	# backup the custom range
2964	set _settings(-customrangemin) [$itk_component(min) value]
2965	set _settings(-customrangemax) [$itk_component(max) value]
2966
2967	# set the gauges to dataset's min and max
2968	foreach { vmin vmax } $_limits($_curFldName) break
2969	SetMinMaxGauges $vmin $vmax
2970	} else {
2971	# custom range was turned on
2972
2973	# enable the min/max labels and gauge widgets
2974	$itk_component(l_min) configure -state normal
2975	$itk_component(min) configure -state normal
2976	$itk_component(l_max) configure -state normal
2977	$itk_component(max) configure -state normal
2978
2979	# if the custom range is being turned on by clicking the
2980	# checkbox, restore the min and max gauges from the backup
2981	# variables. otherwise, new values for the min and max
2982	# widgets will be set later from the legend's editor.
2983	if { $_customRangeClick } {
2984	SetMinMaxGauges $_settings(-customrangemin) $_settings(-customrangemax)
2985	}
2986
2987	# reset the click flag
2988	set _customRangeClick 1
2989	}
2990	AdjustSetting -range
2991	}
2992
2993	# ----------------------------------------------------------------------
2994	# USAGE: SetMinMaxGauges <min> <max>
2995	#
2996	# Set the min and max gauges in the correct order, avoiding the
2997	# error where you try to set the min > max before updating the max or
2998	# set the max < min before updating the min.
2999	#
3000	# There are five range cases to consider with our current range validation.
3001	# For example:
3002	# [2,3] -> [0,1] : update min first, max last
3003	# [2,3] -> [4,5] : update max first, min last
3004	# [2,3] -> [0,2.5] : update min or max first
3005	# [2,3] -> [2.5,5] : update min or max first
3006	# [2,3] -> [2.25,2.75] : update min or max first
3007	#
3008	# In 4 of the cases we can update min first and max last, so we only
3009	# need to check the case where old max < new min, where we update
3010	# max first and min last.
3011	# ----------------------------------------------------------------------
3012	itcl::body Rappture::VtkIsosurfaceViewer::SetMinMaxGauges {min max} {
3013
3014	if { [$itk_component(max) value] < $min} {
3015	# old max < new min
3016	# shift range toward right
3017	# extend max first, then update min
3018	$itk_component(max) value $max
3019	$itk_component(min) value $min
3020	} else {
3021	# extend min first, then update max
3022	$itk_component(min) value $min
3023	$itk_component(max) value $max
3024	}
3025	}
3026
3027	#
3028	# SetCurrentColormap --
3029	#
3030	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
3031	# Keep track of the colormaps that we build.
3032	if { ![info exists _colormaps($name)] } {
3033	BuildColormap $name
3034	set _colormaps($name) 1
3035	}
3036	set _currentColormap $name
3037	SendCmd "contour3d colormap $_currentColormap"
3038	SendCmd "cutplane colormap $_currentColormap"
3039	}
3040
3041	#
3042	# BuildColormap --
3043	#
3044	# Build the designated colormap on the server.
3045	#
3046	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
3047	set cmap [ColorsToColormap $name]
3048	if { [llength $cmap] == 0 } {
3049	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
3050	}
3051	set amap "0.0 1.0 1.0 1.0"
3052	SendCmd "colormap add $name { $cmap } { $amap }"
3053	}
3054
3055	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
3056	array set positions {
3057	front "1 0 0 0"
3058	back "0 0 1 0"
3059	left "0.707107 0 -0.707107 0"
3060	right "0.707107 0 0.707107 0"
3061	top "0.707107 -0.707107 0 0"
3062	bottom "0.707107 0.707107 0 0"
3063	}
3064	foreach name { -qw -qx -qy -qz } value $positions($side) {
3065	set _view($name) $value
3066	}
3067	set q [ViewToQuaternion]
3068	$_arcball quaternion $q
3069	SendCmd "camera orient $q"
3070	SendCmd "camera reset"
3071	set _view(-xpan) 0
3072	set _view(-ypan) 0
3073	set _view(-zoom) 1.0
3074	}
3075
3076	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
3077	if { ![info exists _limits($_curFldName)] } {
3078	puts stderr "no _curFldName"
3079	return ""
3080	}
3081	if { $_contourList(numLevels) < 1 } {
3082	# There are tools that set 0 levels to get cutplanes only
3083	#puts stderr "numLevels < 1"
3084	return ""
3085	}
3086	if { [llength $_contourList(reqValues)] > 1 } {
3087	set values $_contourList(reqValues)
3088	} else {
3089	# if custom range has been set, use the custom min and max
3090	# to generate contour list values
3091	if { $_settings(-customrange) } {
3092	set vmin [$itk_component(min) value]
3093	set vmax [$itk_component(max) value]
3094	} else {
3095	# use the field limits to calculate the contour list values
3096	foreach { vmin vmax } $_limits($_curFldName) break
3097	}
3098
3099	set v [blt::vector create \#auto]
3100	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
3101	$v delete end 0
3102	set values [$v range 0 end]
3103	blt::vector destroy $v
3104	}
3105	set _contourList(values) $values
3106	}
3107
3108	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
3109	set _first $dataobj
3110	$itk_component(field) choices delete 0 end
3111	$itk_component(fieldmenu) delete 0 end
3112	array unset _fields
3113	set _curFldName ""
3114	foreach cname [$_first components] {
3115	foreach fname [$_first fieldnames $cname] {
3116	if { [info exists _fields($fname)] } {
3117	continue
3118	}
3119	foreach { label units components } \
3120	[$_first fieldinfo $fname] break
3121	$itk_component(field) choices insert end "$fname" "$label"
3122	$itk_component(fieldmenu) add radiobutton -label "$label" \
3123	-value $label -variable [itcl::scope _curFldLabel] \
3124	-selectcolor red \
3125	-activebackground $itk_option(-plotbackground) \
3126	-activeforeground $itk_option(-plotforeground) \
3127	-font "Arial 8" \
3128	-command [itcl::code $this LegendTitleAction save]
3129	set _fields($fname) [list $label $units $components]
3130	if { $_curFldName == "" } {
3131	set _curFldName $fname
3132	set _curFldLabel $label
3133	}
3134	}
3135	}
3136	$itk_component(field) value $_curFldLabel
3137	if { $_settings(-customrange) } {
3138	set vmin [$itk_component(min) value]
3139	set vmax [$itk_component(max) value]
3140	SendCmd [list dataset maprange explicit $vmin $vmax $_curFldName]
3141	set limits [list $vmin $vmax]
3142	if { $limits != $_currentLimits } {
3143	set _currentLimits $limits
3144	EventuallyChangeContourLevels
3145	}
3146	} else {
3147	if { ![info exists _limits($_curFldName)] } {
3148	SendCmd "dataset maprange all"
3149	} else {
3150	foreach { vmin vmax } $_limits($_curFldName) break
3151	SendCmd [list dataset maprange explicit $vmin $vmax $_curFldName]
3152	set limits [list $vmin $vmax]
3153	if { $limits != $_currentLimits } {
3154	set _currentLimits $limits
3155	EventuallyChangeContourLevels
3156	}
3157	}
3158	}
3159	}

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source: trunk/gui/scripts/vtkisosurfaceviewer.tcl

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