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source: branches/1.7/gui/scripts/vtkglyphviewer.tcl @ 6306

Last change on this file since 6306 was 6306, checked in by ldelgass, 8 years ago
merge fixes from trunk
File size: 108.6 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkglyphviewer - Vtk 3D glyphs 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 *VtkGlyphViewer.width 4i widgetDefault
19	option add VtkGlyphViewercursor crosshair widgetDefault
20	option add *VtkGlyphViewer.height 4i widgetDefault
21	option add *VtkGlyphViewer.foreground black widgetDefault
22	option add *VtkGlyphViewer.controlBackground gray widgetDefault
23	option add *VtkGlyphViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkGlyphViewer.plotBackground black widgetDefault
25	option add *VtkGlyphViewer.plotForeground white widgetDefault
26	option add *VtkGlyphViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkGlyphViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkGlyphViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkGlyphViewer {
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 BuildGlyphTab {}
72	private method Connect {}
73	private method CurrentDatasets {args}
74	private method DisableMouseRotationBindings {}
75	private method Disconnect {}
76	private method DoResize {}
77	private method DoRotate {}
78	private method DrawLegend {}
79	private method EnterLegend { x y }
80	private method EventuallyRequestLegend {}
81	private method EventuallyResize { w h }
82	private method EventuallyRotate { q }
83	private method EventuallySetCutplane { axis args }
84	private method GetImage { args }
85	private method GetVtkData { args }
86	private method InitSettings { args }
87	private method IsValidObject { dataobj }
88	private method LeaveLegend {}
89	private method LegendPointToValue { x y }
90	private method LegendRangeAction { option args }
91	private method LegendRangeValidate { widget which value }
92	private method LegendTitleAction { option }
93	private method MotionLegend { x y }
94	private method MouseOver2Which {}
95	private method Pan {option x y}
96	private method PanCamera {}
97	private method Pick {x y}
98	private method QuaternionToView { q } {
99	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
100	}
101	private method Rebuild {}
102	private method ReceiveDataset { args }
103	private method ReceiveImage { args }
104	private method ReceiveLegend { colormap title vmin vmax size }
105	private method RequestLegend {}
106	private method Rotate {option x y}
107	private method SetCurrentColormap { color }
108	private method SetCurrentFieldName { dataobj }
109	private method SetLegendTip { x y }
110	private method SetMinMaxGauges { min max }
111	private method SetObjectStyle { dataobj comp }
112	private method SetOrientation { side }
113	private method SetupKeyboardBindings {}
114	private method SetupMousePanningBindings {}
115	private method SetupMouseRotationBindings {}
116	private method SetupMouseZoomBindings {}
117	private method Slice {option args}
118	private method ToggleCustomRange { args }
119	private method ViewToQuaternion {} {
120	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
121	}
122	private method Zoom {option}
123
124	private variable _arcball ""
125
126	private variable _dlist ""; # list of data objects
127	private variable _obj2ovride; # maps dataobj => style override
128	private variable _datasets; # contains all the dataobj-component
129	# datasets in the server
130	private variable _colormaps; # contains all the colormaps
131	# in the server.
132	# The name of the current colormap used. The colormap is global to all
133	# heightmaps displayed.
134	private variable _currentColormap ""
135
136	private variable _click; # info used for rotate operations
137	private variable _limits; # autoscale min/max for all axes
138	private variable _view; # view params for 3D view
139	private variable _settings
140	private variable _changed
141	private variable _reset 1; # Connection to server has been reset.
142
143	private variable _first ""; # This is the topmost dataset.
144	private variable _start 0
145	private variable _title ""
146	private variable _widget
147	private variable _width 0
148	private variable _height 0
149	private variable _resizePending 0
150	private variable _legendPending 0
151	private variable _rotatePending 0
152	private variable _cutplanePending 0
153	private variable _field ""
154	private variable _colorMode "vmag"; # Mode of colormap (vmag or scalar)
155	private variable _fields
156	private variable _curFldName ""
157	private variable _curFldLabel ""
158	private variable _curFldComp 3
159	private variable _mouseOver ""; # what called LegendRangeAction:
160	# vmin or vmax
161	private variable _customRangeClick 1; # what called ToggleCustomRange
162
163	private common _downloadPopup; # download options from popup
164	private common _hardcopy
165	}
166
167	itk::usual VtkGlyphViewer {
168	keep -background -foreground -cursor -font
169	keep -plotbackground -plotforeground
170	}
171
172	# ----------------------------------------------------------------------
173	# CONSTRUCTOR
174	# ----------------------------------------------------------------------
175	itcl::body Rappture::VtkGlyphViewer::constructor {args} {
176	set _serverType "vtkvis"
177
178	#DebugOn
179	EnableWaitDialog 900
180
181	# Rebuild event
182	$_dispatcher register !rebuild
183	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
184
185	# Resize event
186	$_dispatcher register !resize
187	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
188
189	# Legend event
190	$_dispatcher register !legend
191	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
192
193	# Rotate event
194	$_dispatcher register !rotate
195	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
196
197	# X-Cutplane event
198	$_dispatcher register !xcutplane
199	$_dispatcher dispatch $this !xcutplane \
200	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
201
202	# Y-Cutplane event
203	$_dispatcher register !ycutplane
204	$_dispatcher dispatch $this !ycutplane \
205	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
206
207	# Z-Cutplane event
208	$_dispatcher register !zcutplane
209	$_dispatcher dispatch $this !zcutplane \
210	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
211
212	#
213	# Populate parser with commands handle incoming requests
214	#
215	$_parser alias image [itcl::code $this ReceiveImage]
216	$_parser alias legend [itcl::code $this ReceiveLegend]
217	$_parser alias dataset [itcl::code $this ReceiveDataset]
218
219	# Initialize the view to some default parameters.
220	array set _view {
221	-ortho 0
222	-qw 0.853553
223	-qx -0.353553
224	-qy 0.353553
225	-qz 0.146447
226	-xpan 0
227	-ypan 0
228	-zoom 1.0
229	}
230	set _arcball [blt::arcball create 100 100]
231	$_arcball quaternion [ViewToQuaternion]
232
233	array set _settings {
234	-axesvisible 1
235	-axislabels 1
236	-axisminorticks 1
237	-axismode "static"
238	-background black
239	-colormap BCGYR
240	-colormapvisible 1
241	-customrange 0
242	-customrangemin 0
243	-customrangemax 1
244	-cutplaneedges 0
245	-cutplanelighting 1
246	-cutplaneopacity 1.0
247	-cutplanepreinterp 1
248	-cutplanesvisible 0
249	-cutplanewireframe 0
250	-field "Default"
251	-glyphedges 0
252	-glyphlighting 1
253	-glyphnormscale 1
254	-glyphopacity 1.0
255	-glyphorient 1
256	-glyphscale 1
257	-glyphscalemode "vmag"
258	-glyphshape "arrow"
259	-glyphsvisible 1
260	-glyphwireframe 0
261	-legendvisible 1
262	-outline 0
263	-xcutplaneposition 50
264	-xcutplanevisible 1
265	-xgrid 0
266	-ycutplaneposition 50
267	-ycutplanevisible 1
268	-ygrid 0
269	-zcutplaneposition 50
270	-zcutplanevisible 1
271	-zgrid 0
272	}
273	array set _changed {
274	-colormap 0
275	-cutplaneedges 0
276	-cutplanelighting 0
277	-cutplaneopacity 0
278	-cutplanepreinterp 0
279	-cutplanesvisible 0
280	-cutplanewireframe 0
281	-glyphedges 0
282	-glyphlighting 0
283	-glyphnormscale 0
284	-glyphopacity 0
285	-glyphorient 0
286	-glyphscale 0
287	-glyphscalemode 0
288	-glyphshape 0
289	-glyphsvisible 0
290	-glyphwireframe 0
291	-outline 0
292	-xcutplaneposition 0
293	-xcutplanevisible 0
294	-ycutplaneposition 0
295	-ycutplanevisible 0
296	-zcutplaneposition 0
297	-zcutplanevisible 0
298	}
299	array set _widget {
300	-cutplaneopacity 100
301	-glyphopacity 100
302	}
303
304	itk_component add view {
305	canvas $itk_component(plotarea).view \
306	-highlightthickness 0 -borderwidth 0
307	} {
308	usual
309	ignore -highlightthickness -borderwidth -background
310	}
311
312	itk_component add fieldmenu {
313	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
314	-tearoff 0
315	} {
316	usual
317	ignore -background -foreground -relief -tearoff
318	}
319
320	# add an editor for adjusting the legend min and max values
321	itk_component add editor {
322	Rappture::Editor $itk_interior.editor \
323	-activatecommand [itcl::code $this LegendRangeAction activate] \
324	-validatecommand [itcl::code $this LegendRangeAction validate] \
325	-applycommand [itcl::code $this LegendRangeAction apply]
326	}
327
328	set c $itk_component(view)
329	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
330	bind $c <Control-F1> [itcl::code $this ToggleConsole]
331
332	# Fix the scrollregion in case we go off screen
333	$c configure -scrollregion [$c bbox all]
334
335	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
336	set _map(cwidth) -1
337	set _map(cheight) -1
338	set _map(zoom) 1.0
339	set _map(original) ""
340
341	set f [$itk_component(main) component controls]
342	itk_component add reset {
343	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
344	-highlightthickness 0 \
345	-image [Rappture::icon reset-view] \
346	-command [itcl::code $this Zoom reset]
347	} {
348	usual
349	ignore -highlightthickness
350	}
351	pack $itk_component(reset) -side top -padx 2 -pady 2
352	Rappture::Tooltip::for $itk_component(reset) \
353	"Reset the view to the default zoom level"
354
355	itk_component add zoomin {
356	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
357	-highlightthickness 0 \
358	-image [Rappture::icon zoom-in] \
359	-command [itcl::code $this Zoom in]
360	} {
361	usual
362	ignore -highlightthickness
363	}
364	pack $itk_component(zoomin) -side top -padx 2 -pady 2
365	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
366
367	itk_component add zoomout {
368	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
369	-highlightthickness 0 \
370	-image [Rappture::icon zoom-out] \
371	-command [itcl::code $this Zoom out]
372	} {
373	usual
374	ignore -highlightthickness
375	}
376	pack $itk_component(zoomout) -side top -padx 2 -pady 2
377	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
378
379	itk_component add glyphs {
380	Rappture::PushButton $f.glyphs \
381	-onimage [Rappture::icon volume-on] \
382	-offimage [Rappture::icon volume-off] \
383	-variable [itcl::scope _settings(-glyphsvisible)] \
384	-command [itcl::code $this AdjustSetting -glyphsvisible]
385	}
386	$itk_component(glyphs) select
387	Rappture::Tooltip::for $itk_component(glyphs) \
388	"Hide the glyphs"
389	pack $itk_component(glyphs) -padx 2 -pady 2
390
391	if {0} {
392	itk_component add cutplane {
393	Rappture::PushButton $f.cutplane \
394	-onimage [Rappture::icon cutbutton] \
395	-offimage [Rappture::icon cutbutton] \
396	-variable [itcl::scope _settings(-cutplanesvisible)] \
397	-command [itcl::code $this AdjustSetting -cutplanesvisible]
398	}
399	Rappture::Tooltip::for $itk_component(cutplane) \
400	"Show the cutplanes"
401	pack $itk_component(cutplane) -padx 2 -pady 2
402	}
403
404	if { [catch {
405	BuildGlyphTab
406	#BuildCutplanesTab
407	BuildAxisTab
408	BuildCameraTab
409	} errs] != 0 } {
410	puts stderr errs=$errs
411	}
412
413	# Legend
414	set _image(legend) [image create photo]
415	itk_component add legend {
416	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
417	} {
418	usual
419	ignore -highlightthickness
420	rename -background -plotbackground plotBackground Background
421	}
422
423	# Hack around the Tk panewindow. The problem is that the requested
424	# size of the 3d view isn't set until an image is retrieved from
425	# the server. So the panewindow uses the tiny size.
426	set w 10000
427	pack forget $itk_component(view)
428	blt::table $itk_component(plotarea) \
429	0,0 $itk_component(view) -fill both -reqwidth $w
430	blt::table configure $itk_component(plotarea) c1 -resize none
431
432	SetupMouseRotationBindings
433	SetupMousePanningBindings
434	SetupMouseZoomBindings
435	SetupKeyboardBindings
436
437	#bind $itk_component(view) <ButtonRelease-3> \
438	# [itcl::code $this Pick %x %y]
439
440	set _image(download) [image create photo]
441
442	eval itk_initialize $args
443
444	Connect
445	}
446
447	# ----------------------------------------------------------------------
448	# DESTRUCTOR
449	# ----------------------------------------------------------------------
450	itcl::body Rappture::VtkGlyphViewer::destructor {} {
451	Disconnect
452	image delete $_image(plot)
453	image delete $_image(download)
454	catch { blt::arcball destroy $_arcball }
455	}
456
457	itcl::body Rappture::VtkGlyphViewer::SetupMouseRotationBindings {} {
458	# Bindings for rotation via mouse
459	bind $itk_component(view) <ButtonPress-1> \
460	[itcl::code $this Rotate click %x %y]
461	bind $itk_component(view) <B1-Motion> \
462	[itcl::code $this Rotate drag %x %y]
463	bind $itk_component(view) <ButtonRelease-1> \
464	[itcl::code $this Rotate release %x %y]
465	}
466
467	itcl::body Rappture::VtkGlyphViewer::DisableMouseRotationBindings {} {
468	# Bindings for rotation via mouse
469	bind $itk_component(view) <ButtonPress-1> ""
470	bind $itk_component(view) <B1-Motion> ""
471	bind $itk_component(view) <ButtonRelease-1> ""
472	}
473
474	itcl::body Rappture::VtkGlyphViewer::SetupMousePanningBindings {} {
475	# Bindings for panning via mouse
476	bind $itk_component(view) <ButtonPress-2> \
477	[itcl::code $this Pan click %x %y]
478	bind $itk_component(view) <B2-Motion> \
479	[itcl::code $this Pan drag %x %y]
480	bind $itk_component(view) <ButtonRelease-2> \
481	[itcl::code $this Pan release %x %y]
482	}
483
484	itcl::body Rappture::VtkGlyphViewer::SetupMouseZoomBindings {} {
485	if {[string equal "x11" [tk windowingsystem]]} {
486	# Bindings for zoom via mouse
487	bind $itk_component(view) <4> [itcl::code $this Zoom out]
488	bind $itk_component(view) <5> [itcl::code $this Zoom in]
489	}
490	}
491
492	itcl::body Rappture::VtkGlyphViewer::SetupKeyboardBindings {} {
493	# Bindings for panning via keyboard
494	bind $itk_component(view) <KeyPress-Left> \
495	[itcl::code $this Pan set -10 0]
496	bind $itk_component(view) <KeyPress-Right> \
497	[itcl::code $this Pan set 10 0]
498	bind $itk_component(view) <KeyPress-Up> \
499	[itcl::code $this Pan set 0 -10]
500	bind $itk_component(view) <KeyPress-Down> \
501	[itcl::code $this Pan set 0 10]
502	bind $itk_component(view) <Shift-KeyPress-Left> \
503	[itcl::code $this Pan set -2 0]
504	bind $itk_component(view) <Shift-KeyPress-Right> \
505	[itcl::code $this Pan set 2 0]
506	bind $itk_component(view) <Shift-KeyPress-Up> \
507	[itcl::code $this Pan set 0 -2]
508	bind $itk_component(view) <Shift-KeyPress-Down> \
509	[itcl::code $this Pan set 0 2]
510
511	# Bindings for zoom via keyboard
512	bind $itk_component(view) <KeyPress-Prior> \
513	[itcl::code $this Zoom out]
514	bind $itk_component(view) <KeyPress-Next> \
515	[itcl::code $this Zoom in]
516
517	bind $itk_component(view) <Enter> "focus $itk_component(view)"
518	}
519
520	itcl::body Rappture::VtkGlyphViewer::DoResize {} {
521	if { $_width < 2 } {
522	set _width 500
523	}
524	if { $_height < 2 } {
525	set _height 500
526	}
527	set _start [clock clicks -milliseconds]
528	SendCmd "screen size $_width $_height"
529
530	EventuallyRequestLegend
531	set _resizePending 0
532	}
533
534	itcl::body Rappture::VtkGlyphViewer::DoRotate {} {
535	SendCmd "camera orient [ViewToQuaternion]"
536	set _rotatePending 0
537	}
538
539	itcl::body Rappture::VtkGlyphViewer::EventuallyRequestLegend {} {
540	if { !$_legendPending } {
541	set _legendPending 1
542	$_dispatcher event -idle !legend
543	}
544	}
545
546	itcl::body Rappture::VtkGlyphViewer::EventuallyResize { w h } {
547	set _width $w
548	set _height $h
549	$_arcball resize $w $h
550	if { !$_resizePending } {
551	set _resizePending 1
552	$_dispatcher event -after 400 !resize
553	}
554	}
555
556	itcl::body Rappture::VtkGlyphViewer::EventuallyRotate { q } {
557	QuaternionToView $q
558	if { !$_rotatePending } {
559	set _rotatePending 1
560	$_dispatcher event -after 100 !rotate
561	}
562	}
563
564	itcl::body Rappture::VtkGlyphViewer::EventuallySetCutplane { axis args } {
565	if { !$_cutplanePending } {
566	set _cutplanePending 1
567	$_dispatcher event -after 100 !${axis}cutplane
568	}
569	}
570
571	# ----------------------------------------------------------------------
572	# USAGE: add <dataobj> ?<settings>?
573	#
574	# Clients use this to add a data object to the plot. The optional
575	# <settings> are used to configure the plot. Allowed settings are
576	# -color, -brightness, -width, -linestyle, and -raise.
577	# ----------------------------------------------------------------------
578	itcl::body Rappture::VtkGlyphViewer::add {dataobj {settings ""}} {
579	if { ![$dataobj isvalid] } {
580	return; # Object doesn't contain valid data.
581	}
582	array set params {
583	-color auto
584	-width 1
585	-linestyle solid
586	-brightness 0
587	-raise 0
588	-description ""
589	-param ""
590	-type ""
591	}
592	array set params $settings
593
594	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
595	# can't handle -autocolors yet
596	set params(-color) black
597	}
598	set pos [lsearch -exact $_dlist $dataobj]
599	if {$pos < 0} {
600	lappend _dlist $dataobj
601	}
602	set _obj2ovride($dataobj-color) $params(-color)
603	set _obj2ovride($dataobj-width) $params(-width)
604	set _obj2ovride($dataobj-raise) $params(-raise)
605	$_dispatcher event -idle !rebuild
606	}
607
608	# ----------------------------------------------------------------------
609	# USAGE: delete ?<dataobj1> <dataobj2> ...?
610	#
611	# Clients use this to delete a dataobj from the plot. If no dataobjs
612	# are specified, then all dataobjs are deleted. No data objects are
613	# deleted. They are only removed from the display list.
614	# ----------------------------------------------------------------------
615	itcl::body Rappture::VtkGlyphViewer::delete {args} {
616	if { [llength $args] == 0} {
617	set args $_dlist
618	}
619	# Delete all specified dataobjs
620	set changed 0
621	foreach dataobj $args {
622	set pos [lsearch -exact $_dlist $dataobj]
623	if { $pos < 0 } {
624	continue; # Don't know anything about it.
625	}
626	# Remove it from the dataobj list.
627	set _dlist [lreplace $_dlist $pos $pos]
628	array unset _obj2ovride $dataobj-*
629	array unset _settings $dataobj-*
630	set changed 1
631	}
632	# If anything changed, then rebuild the plot
633	if { $changed } {
634	$_dispatcher event -idle !rebuild
635	}
636	}
637
638	# ----------------------------------------------------------------------
639	# USAGE: get ?-objects?
640	# USAGE: get ?-visible?
641	# USAGE: get ?-image view?
642	#
643	# Clients use this to query the list of objects being plotted, in
644	# order from bottom to top of this result. The optional "-image"
645	# flag can also request the internal images being shown.
646	# ----------------------------------------------------------------------
647	itcl::body Rappture::VtkGlyphViewer::get {args} {
648	if {[llength $args] == 0} {
649	set args "-objects"
650	}
651
652	set op [lindex $args 0]
653	switch -- $op {
654	"-objects" {
655	# put the dataobj list in order according to -raise options
656	set dlist {}
657	foreach dataobj $_dlist {
658	if { ![IsValidObject $dataobj] } {
659	continue
660	}
661	if {[info exists _obj2ovride($dataobj-raise)] &&
662	$_obj2ovride($dataobj-raise)} {
663	set dlist [linsert $dlist 0 $dataobj]
664	} else {
665	lappend dlist $dataobj
666	}
667	}
668	return $dlist
669	}
670	"-visible" {
671	set dlist {}
672	foreach dataobj $_dlist {
673	if { ![IsValidObject $dataobj] } {
674	continue
675	}
676	if { ![info exists _obj2ovride($dataobj-raise)] } {
677	# No setting indicates that the object isn't visible.
678	continue
679	}
680	# Otherwise use the -raise parameter to put the object to
681	# the front of the list.
682	if { $_obj2ovride($dataobj-raise) } {
683	set dlist [linsert $dlist 0 $dataobj]
684	} else {
685	lappend dlist $dataobj
686	}
687	}
688	return $dlist
689	}
690	"-image" {
691	if {[llength $args] != 2} {
692	error "wrong # args: should be \"get -image view\""
693	}
694	switch -- [lindex $args end] {
695	view {
696	return $_image(plot)
697	}
698	default {
699	error "bad image name \"[lindex $args end]\": should be view"
700	}
701	}
702	}
703	default {
704	error "bad option \"$op\": should be -objects, -visible or -image"
705	}
706	}
707	}
708
709	# ----------------------------------------------------------------------
710	# USAGE: scale ?<data1> <data2> ...?
711	#
712	# Sets the default limits for the overall plot according to the
713	# limits of the data for all of the given <data> objects. This
714	# accounts for all objects--even those not showing on the screen.
715	# Because of this, the limits are appropriate for all objects as
716	# the user scans through data in the ResultSet viewer.
717	# ----------------------------------------------------------------------
718	itcl::body Rappture::VtkGlyphViewer::scale { args } {
719	foreach dataobj $args {
720	if { ![$dataobj isvalid] } {
721	continue; # Object doesn't contain valid data.
722	}
723	foreach axis { x y z } {
724	set lim [$dataobj limits $axis]
725	if { ![info exists _limits($axis)] } {
726	set _limits($axis) $lim
727	continue
728	}
729	foreach {min max} $lim break
730	foreach {amin amax} $_limits($axis) break
731	if { $amin > $min } {
732	set amin $min
733	}
734	if { $amax < $max } {
735	set amax $max
736	}
737	set _limits($axis) [list $amin $amax]
738	}
739	foreach { fname lim } [$dataobj fieldlimits] {
740	if { ![info exists _limits($fname)] } {
741	set _limits($fname) $lim
742
743	# set reasonable defaults for
744	# customrangevmin and customrangevmax
745	foreach {min max} $lim break
746	SetMinMaxGauges $min $max
747	set _settings(-customrangemin) $min
748	set _settings(-customrangemax) $max
749
750	continue
751	}
752	foreach {min max} $lim break
753	foreach {fmin fmax} $_limits($fname) break
754	if { ! $_settings(-customrange) } {
755	SetMinMaxGauges $fmin $fmax
756	}
757	if { $fmin > $min } {
758	set fmin $min
759	}
760	if { $fmax < $max } {
761	set fmax $max
762	}
763	set _limits($fname) [list $fmin $fmax]
764	}
765	}
766	}
767
768	# ----------------------------------------------------------------------
769	# USAGE: download coming
770	# USAGE: download controls <downloadCommand>
771	# USAGE: download now
772	#
773	# Clients use this method to create a downloadable representation
774	# of the plot. Returns a list of the form {ext string}, where
775	# "ext" is the file extension (indicating the type of data) and
776	# "string" is the data itself.
777	# ----------------------------------------------------------------------
778	itcl::body Rappture::VtkGlyphViewer::download {option args} {
779	switch $option {
780	coming {
781	if {[catch {
782	blt::winop snap $itk_component(plotarea) $_image(download)
783	}]} {
784	$_image(download) configure -width 1 -height 1
785	$_image(download) put #000000
786	}
787	}
788	controls {
789	set popup .vtkviewerdownload
790	if { ![winfo exists .vtkviewerdownload] } {
791	set inner [BuildDownloadPopup $popup [lindex $args 0]]
792	} else {
793	set inner [$popup component inner]
794	}
795	set _downloadPopup(image_controls) $inner.image_frame
796	set num [llength [get]]
797	set num [expr {($num == 1) ? "1 result" : "$num results"}]
798	set word [Rappture::filexfer::label downloadWord]
799	$inner.summary configure -text "$word $num in the following format:"
800	update idletasks ;# Fix initial sizes
801	return $popup
802	}
803	now {
804	set popup .vtkviewerdownload
805	if {[winfo exists .vtkviewerdownload]} {
806	$popup deactivate
807	}
808	switch -- $_downloadPopup(format) {
809	"image" {
810	return [$this GetImage [lindex $args 0]]
811	}
812	"vtk" {
813	return [$this GetVtkData [lindex $args 0]]
814	}
815	}
816	return ""
817	}
818	default {
819	error "bad option \"$option\": should be coming, controls, now"
820	}
821	}
822	}
823
824	# ----------------------------------------------------------------------
825	# USAGE: Connect ?<host:port>,<host:port>...?
826	#
827	# Clients use this method to establish a connection to a new
828	# server, or to reestablish a connection to the previous server.
829	# Any existing connection is automatically closed.
830	# ----------------------------------------------------------------------
831	itcl::body Rappture::VtkGlyphViewer::Connect {} {
832	set _hosts [GetServerList "vtkvis"]
833	if { "" == $_hosts } {
834	return 0
835	}
836	set _reset 1
837	set result [VisViewer::Connect $_hosts]
838	if { $result } {
839	if { $_reportClientInfo } {
840	# Tell the server the viewer, hub, user and session.
841	# Do this immediately on connect before buffering any commands
842	global env
843
844	set info {}
845	set user "???"
846	if { [info exists env(USER)] } {
847	set user $env(USER)
848	}
849	set session "???"
850	if { [info exists env(SESSION)] } {
851	set session $env(SESSION)
852	}
853	lappend info "version" "$Rappture::version"
854	lappend info "build" "$Rappture::build"
855	lappend info "svnurl" "$Rappture::svnurl"
856	lappend info "installdir" "$Rappture::installdir"
857	lappend info "hub" [exec hostname]
858	lappend info "client" "vtkglyphviewer"
859	lappend info "user" $user
860	lappend info "session" $session
861	SendCmd "clientinfo [list $info]"
862	}
863
864	set w [winfo width $itk_component(view)]
865	set h [winfo height $itk_component(view)]
866	EventuallyResize $w $h
867	}
868	return $result
869	}
870
871	#
872	# isconnected --
873	#
874	# Indicates if we are currently connected to the visualization server.
875	#
876	itcl::body Rappture::VtkGlyphViewer::isconnected {} {
877	return [VisViewer::IsConnected]
878	}
879
880	#
881	# disconnect --
882	#
883	itcl::body Rappture::VtkGlyphViewer::disconnect {} {
884	Disconnect
885	set _reset 1
886	}
887
888	#
889	# Disconnect --
890	#
891	# Clients use this method to disconnect from the current rendering server.
892	#
893	itcl::body Rappture::VtkGlyphViewer::Disconnect {} {
894	VisViewer::Disconnect
895
896	$_dispatcher cancel !rebuild
897	$_dispatcher cancel !resize
898	$_dispatcher cancel !rotate
899	$_dispatcher cancel !xcutplane
900	$_dispatcher cancel !ycutplane
901	$_dispatcher cancel !zcutplane
902	$_dispatcher cancel !legend
903	# disconnected -- no more data sitting on server
904	array unset _datasets
905	array unset _colormaps
906	}
907
908	# ----------------------------------------------------------------------
909	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
910	#
911	# Invoked automatically whenever the "image" command comes in from
912	# the rendering server. Indicates that binary image data with the
913	# specified <size> will follow.
914	# ----------------------------------------------------------------------
915	itcl::body Rappture::VtkGlyphViewer::ReceiveImage { args } {
916	array set info {
917	-token "???"
918	-bytes 0
919	-type image
920	}
921	array set info $args
922	set bytes [ReceiveBytes $info(-bytes)]
923	if { $info(-type) == "image" } {
924	if 0 {
925	set f [open "last.ppm" "w"]
926	fconfigure $f -encoding binary
927	puts -nonewline $f $bytes
928	close $f
929	}
930	$_image(plot) configure -data $bytes
931	#set time [clock seconds]
932	#set date [clock format $time]
933	#set w [image width $_image(plot)]
934	#set h [image height $_image(plot)]
935	#puts stderr "$date: received image ${w}x${h} image"
936	if { $_start > 0 } {
937	set finish [clock clicks -milliseconds]
938	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
939	set _start 0
940	}
941	} elseif { $info(type) == "print" } {
942	set tag $this-print-$info(-token)
943	set _hardcopy($tag) $bytes
944	}
945	}
946
947	#
948	# ReceiveDataset --
949	#
950	itcl::body Rappture::VtkGlyphViewer::ReceiveDataset { args } {
951	if { ![isconnected] } {
952	return
953	}
954	set option [lindex $args 0]
955	switch -- $option {
956	"scalar" {
957	set option [lindex $args 1]
958	switch -- $option {
959	"world" {
960	foreach { x y z value tag } [lrange $args 2 end] break
961	}
962	"pixel" {
963	foreach { x y value tag } [lrange $args 2 end] break
964	}
965	}
966	}
967	"vector" {
968	set option [lindex $args 1]
969	switch -- $option {
970	"world" {
971	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
972	}
973	"pixel" {
974	foreach { x y vx vy vz tag } [lrange $args 2 end] break
975	}
976	}
977	}
978	"names" {
979	foreach { name } [lindex $args 1] {
980	#puts stderr "Dataset: $name"
981	}
982	}
983	default {
984	error "unknown dataset option \"$option\" from server"
985	}
986	}
987	}
988
989	# ----------------------------------------------------------------------
990	# USAGE: Rebuild
991	#
992	# Called automatically whenever something changes that affects the
993	# data in the widget. Clears any existing data and rebuilds the
994	# widget to display new data.
995	# ----------------------------------------------------------------------
996	itcl::body Rappture::VtkGlyphViewer::Rebuild {} {
997	set w [winfo width $itk_component(view)]
998	set h [winfo height $itk_component(view)]
999	if { $w < 2 \|\| $h < 2 } {
1000	update
1001	$_dispatcher event -idle !rebuild
1002	return
1003	}
1004
1005	# Turn on buffering of commands to the server. We don't want to
1006	# be preempted by a server disconnect/reconnect (which automatically
1007	# generates a new call to Rebuild).
1008	StartBufferingCommands
1009
1010	if { $_reset } {
1011	set _width $w
1012	set _height $h
1013	$_arcball resize $w $h
1014	DoResize
1015
1016	# Reset the camera and other view parameters
1017	$_arcball quaternion [ViewToQuaternion]
1018	InitSettings -ortho
1019	DoRotate
1020	PanCamera
1021	set _first ""
1022	InitSettings -background \
1023	-xgrid -ygrid -zgrid -axismode \
1024	-axesvisible -axislabels -axisminorticks
1025	#SendCmd "axis lformat all %g"
1026	StopBufferingCommands
1027	SendCmd "imgflush"
1028	StartBufferingCommands
1029	}
1030	set _first ""
1031	SendCmd "dataset visible 0"
1032	eval scale $_dlist
1033	foreach dataobj [get -objects] {
1034	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1035	set _first $dataobj
1036	SetCurrentFieldName $dataobj
1037	}
1038	foreach comp [$dataobj components] {
1039	set tag $dataobj-$comp
1040	if { ![info exists _datasets($tag)] } {
1041	set bytes [$dataobj vtkdata $comp]
1042	if 0 {
1043	set f [open "/tmp/glyph.vtk" "w"]
1044	fconfigure $f -translation binary -encoding binary
1045	puts -nonewline $f $bytes
1046	close $f
1047	}
1048	set length [string length $bytes]
1049	if { $_reportClientInfo } {
1050	set info {}
1051	lappend info "tool_id" [$dataobj hints toolid]
1052	lappend info "tool_name" [$dataobj hints toolname]
1053	lappend info "tool_title" [$dataobj hints tooltitle]
1054	lappend info "tool_command" [$dataobj hints toolcommand]
1055	lappend info "tool_revision" [$dataobj hints toolrevision]
1056	lappend info "dataset_label" [$dataobj hints label]
1057	lappend info "dataset_size" $length
1058	lappend info "dataset_tag" $tag
1059	SendCmd "clientinfo [list $info]"
1060	}
1061	SendCmd "dataset add $tag data follows $length"
1062	SendData $bytes
1063	set _datasets($tag) 1
1064	SetObjectStyle $dataobj $comp
1065	}
1066	if { [info exists _obj2ovride($dataobj-raise)] } {
1067	SendCmd "glyphs visible 1 $tag"
1068	}
1069	}
1070	}
1071
1072	InitSettings -glyphsvisible -outline
1073	#-cutplanesvisible
1074	if { $_reset } {
1075	# These are settings that rely on a dataset being loaded.
1076	InitSettings \
1077	-field -range \
1078	-glyphedges -glyphlighting -glyphnormscale -glyphopacity \
1079	-glyphorient -glyphscale -glyphscalemode -glyphshape -glyphwireframe
1080
1081	#-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1082	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1083	-cutplanepreinterp
1084
1085	Zoom reset
1086	foreach axis { x y z } {
1087	set label ""
1088	if { $_first != "" } {
1089	set label [$_first hints ${axis}label]
1090	}
1091	if { $label == "" } {
1092	set label [string toupper $axis]
1093	}
1094	# There may be a space in the axis label.
1095	SendCmd [list axis name $axis $label]
1096	}
1097	if { [array size _fields] < 2 } {
1098	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1099	}
1100	set _reset 0
1101	}
1102	#DrawLegend
1103
1104	# Actually write the commands to the server socket. If it fails, we don't
1105	# care. We're finished here.
1106	blt::busy hold $itk_component(hull)
1107	StopBufferingCommands; # Turn off buffering and send commands.
1108	blt::busy release $itk_component(hull)
1109	}
1110
1111	# ----------------------------------------------------------------------
1112	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1113	#
1114	# Returns a list of server IDs for the current datasets being displayed. This
1115	# is normally a single ID, but it might be a list of IDs if the current data
1116	# object has multiple components.
1117	# ----------------------------------------------------------------------
1118	itcl::body Rappture::VtkGlyphViewer::CurrentDatasets {args} {
1119	set flag [lindex $args 0]
1120	switch -- $flag {
1121	"-all" {
1122	if { [llength $args] > 1 } {
1123	error "CurrentDatasets: can't specify dataobj after \"-all\""
1124	}
1125	set dlist [get -objects]
1126	}
1127	"-visible" {
1128	if { [llength $args] > 1 } {
1129	set dlist {}
1130	set args [lrange $args 1 end]
1131	foreach dataobj $args {
1132	if { [info exists _obj2ovride($dataobj-raise)] } {
1133	lappend dlist $dataobj
1134	}
1135	}
1136	} else {
1137	set dlist [get -visible]
1138	}
1139	}
1140	default {
1141	set dlist $args
1142	}
1143	}
1144	set rlist ""
1145	foreach dataobj $dlist {
1146	foreach comp [$dataobj components] {
1147	set tag $dataobj-$comp
1148	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1149	lappend rlist $tag
1150	}
1151	}
1152	}
1153	return $rlist
1154	}
1155
1156	# ----------------------------------------------------------------------
1157	# USAGE: Zoom in
1158	# USAGE: Zoom out
1159	# USAGE: Zoom reset
1160	#
1161	# Called automatically when the user clicks on one of the zoom
1162	# controls for this widget. Changes the zoom for the current view.
1163	# ----------------------------------------------------------------------
1164	itcl::body Rappture::VtkGlyphViewer::Zoom {option} {
1165	switch -- $option {
1166	"in" {
1167	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1168	SendCmd "camera zoom $_view(-zoom)"
1169	}
1170	"out" {
1171	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1172	SendCmd "camera zoom $_view(-zoom)"
1173	}
1174	"reset" {
1175	array set _view {
1176	-qw 0.853553
1177	-qx -0.353553
1178	-qy 0.353553
1179	-qz 0.146447
1180	-xpan 0
1181	-ypan 0
1182	-zoom 1.0
1183	}
1184	if { $_first != "" } {
1185	set location [$_first hints camera]
1186	if { $location != "" } {
1187	array set _view $location
1188	}
1189	}
1190	$_arcball quaternion [ViewToQuaternion]
1191	DoRotate
1192	SendCmd "camera reset"
1193	}
1194	}
1195	}
1196
1197	itcl::body Rappture::VtkGlyphViewer::PanCamera {} {
1198	set x $_view(-xpan)
1199	set y $_view(-ypan)
1200	SendCmd "camera pan $x $y"
1201	}
1202
1203	# ----------------------------------------------------------------------
1204	# USAGE: Rotate click <x> <y>
1205	# USAGE: Rotate drag <x> <y>
1206	# USAGE: Rotate release <x> <y>
1207	#
1208	# Called automatically when the user clicks/drags/releases in the
1209	# plot area. Moves the plot according to the user's actions.
1210	# ----------------------------------------------------------------------
1211	itcl::body Rappture::VtkGlyphViewer::Rotate {option x y} {
1212	switch -- $option {
1213	"click" {
1214	$itk_component(view) configure -cursor fleur
1215	set _click(x) $x
1216	set _click(y) $y
1217	}
1218	"drag" {
1219	if {[array size _click] == 0} {
1220	Rotate click $x $y
1221	} else {
1222	set w [winfo width $itk_component(view)]
1223	set h [winfo height $itk_component(view)]
1224	if {$w <= 0 \|\| $h <= 0} {
1225	return
1226	}
1227
1228	if {[catch {
1229	# this fails sometimes for no apparent reason
1230	set dx [expr {double($x-$_click(x))/$w}]
1231	set dy [expr {double($y-$_click(y))/$h}]
1232	}]} {
1233	return
1234	}
1235	if { $dx == 0 && $dy == 0 } {
1236	return
1237	}
1238	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1239	EventuallyRotate $q
1240	set _click(x) $x
1241	set _click(y) $y
1242	}
1243	}
1244	"release" {
1245	Rotate drag $x $y
1246	$itk_component(view) configure -cursor ""
1247	catch {unset _click}
1248	}
1249	default {
1250	error "bad option \"$option\": should be click, drag, release"
1251	}
1252	}
1253	}
1254
1255	itcl::body Rappture::VtkGlyphViewer::Pick {x y} {
1256	foreach tag [CurrentDatasets -visible] {
1257	SendCmd "dataset getscalar pixel $x $y $tag"
1258	}
1259	}
1260
1261	# ----------------------------------------------------------------------
1262	# USAGE: $this Pan click x y
1263	# $this Pan drag x y
1264	# $this Pan release x y
1265	#
1266	# Called automatically when the user clicks on one of the zoom
1267	# controls for this widget. Changes the zoom for the current view.
1268	# ----------------------------------------------------------------------
1269	itcl::body Rappture::VtkGlyphViewer::Pan {option x y} {
1270	switch -- $option {
1271	"set" {
1272	set w [winfo width $itk_component(view)]
1273	set h [winfo height $itk_component(view)]
1274	set x [expr $x / double($w)]
1275	set y [expr $y / double($h)]
1276	set _view(-xpan) [expr $_view(-xpan) + $x]
1277	set _view(-ypan) [expr $_view(-ypan) + $y]
1278	PanCamera
1279	return
1280	}
1281	"click" {
1282	set _click(x) $x
1283	set _click(y) $y
1284	$itk_component(view) configure -cursor hand1
1285	}
1286	"drag" {
1287	if { ![info exists _click(x)] } {
1288	set _click(x) $x
1289	}
1290	if { ![info exists _click(y)] } {
1291	set _click(y) $y
1292	}
1293	set w [winfo width $itk_component(view)]
1294	set h [winfo height $itk_component(view)]
1295	set dx [expr ($_click(x) - $x)/double($w)]
1296	set dy [expr ($_click(y) - $y)/double($h)]
1297	set _click(x) $x
1298	set _click(y) $y
1299	set _view(-xpan) [expr $_view(-xpan) - $dx]
1300	set _view(-ypan) [expr $_view(-ypan) - $dy]
1301	PanCamera
1302	}
1303	"release" {
1304	Pan drag $x $y
1305	$itk_component(view) configure -cursor ""
1306	}
1307	default {
1308	error "unknown option \"$option\": should set, click, drag, or release"
1309	}
1310	}
1311	}
1312
1313	# ----------------------------------------------------------------------
1314	# USAGE: InitSettings <what> ?<value>?
1315	#
1316	# Used internally to update rendering settings whenever parameters
1317	# change in the popup settings panel. Sends the new settings off
1318	# to the back end.
1319	# ----------------------------------------------------------------------
1320	itcl::body Rappture::VtkGlyphViewer::InitSettings { args } {
1321	foreach spec $args {
1322	if { [info exists _settings($_first${spec})] } {
1323	# Reset global setting with dataobj specific setting
1324	set _settings($spec) $_settings($_first${spec})
1325	}
1326	AdjustSetting $spec
1327	}
1328	}
1329
1330	#
1331	# AdjustSetting --
1332	#
1333	# Changes/updates a specific setting in the widget. There are
1334	# usually user-setable option. Commands are sent to the render
1335	# server.
1336	#
1337	itcl::body Rappture::VtkGlyphViewer::AdjustSetting {what {value ""}} {
1338	DebugTrace "Enter"
1339	if { ![isconnected] } {
1340	DebugTrace "Not connected"
1341	return
1342	}
1343	switch -- $what {
1344	"-axesvisible" {
1345	set bool $_settings($what)
1346	SendCmd "axis visible all $bool"
1347	}
1348	"-axislabels" {
1349	set bool $_settings($what)
1350	SendCmd "axis labels all $bool"
1351	}
1352	"-axisminorticks" {
1353	set bool $_settings($what)
1354	SendCmd "axis minticks all $bool"
1355	}
1356	"-axismode" {
1357	set mode [$itk_component(axisMode) value]
1358	set mode [$itk_component(axisMode) translate $mode]
1359	set _settings($what) $mode
1360	SendCmd "axis flymode $mode"
1361	}
1362	"-background" {
1363	set bgcolor [$itk_component(background) value]
1364	array set fgcolors {
1365	"black" "white"
1366	"white" "black"
1367	"grey" "black"
1368	}
1369	configure -plotbackground $bgcolor \
1370	-plotforeground $fgcolors($bgcolor)
1371	$itk_component(view) delete "legend"
1372	DrawLegend
1373	}
1374	"-colormap" {
1375	set _changed($what) 1
1376	StartBufferingCommands
1377	set color [$itk_component(colormap) value]
1378	set _settings($what) $color
1379	if { $color == "none" } {
1380	if { $_settings(-colormapvisible) } {
1381	SendCmd "glyphs colormode constant {}"
1382	set _settings(-colormapvisible) 0
1383	}
1384	} else {
1385	if { !$_settings(-colormapvisible) } {
1386	SendCmd "glyphs colormode $_colorMode $_curFldName"
1387	set _settings(-colormapvisible) 1
1388	}
1389	SetCurrentColormap $color
1390	}
1391	StopBufferingCommands
1392	EventuallyRequestLegend
1393	}
1394	"-cutplaneedges" {
1395	set _changed($what) 1
1396	set bool $_settings($what)
1397	SendCmd "cutplane edges $bool"
1398	}
1399	"-cutplanelighting" {
1400	set _changed($what) 1
1401	set bool $_settings($what)
1402	SendCmd "cutplane lighting $bool"
1403	}
1404	"-cutplaneopacity" {
1405	set _changed($what) 1
1406	set _settings($what) [expr $_widget($what) * 0.01]
1407	SendCmd "cutplane opacity $_settings($what)"
1408	}
1409	"-cutplanepreinterp" {
1410	set _changed($what) 1
1411	set bool $_settings($what)
1412	SendCmd "cutplane preinterp $bool"
1413	}
1414	"-cutplanesvisible" {
1415	set _changed($what) 1
1416	set bool $_settings($what)
1417	SendCmd "cutplane visible 0"
1418	if { $bool } {
1419	foreach tag [CurrentDatasets -visible] {
1420	SendCmd "cutplane visible $bool $tag"
1421	}
1422	}
1423	if { $bool } {
1424	Rappture::Tooltip::for $itk_component(cutplane) \
1425	"Hide the cutplanes"
1426	} else {
1427	Rappture::Tooltip::for $itk_component(cutplane) \
1428	"Show the cutplanes"
1429	}
1430	}
1431	"-cutplanewireframe" {
1432	set _changed($what) 1
1433	set bool $_settings($what)
1434	SendCmd "cutplane wireframe $bool"
1435	}
1436	"-field" {
1437	set label [$itk_component(field) value]
1438	set fname [$itk_component(field) translate $label]
1439	set _settings($what) $fname
1440	if { [info exists _fields($fname)] } {
1441	foreach { label units components } $_fields($fname) break
1442	if { $components > 1 } {
1443	set _colorMode vmag
1444	} else {
1445	set _colorMode scalar
1446	}
1447	set _curFldName $fname
1448	set _curFldLabel $label
1449	set _curFldComp $components
1450	} else {
1451	puts stderr "unknown field \"$fname\""
1452	return
1453	}
1454	if { ![info exists _limits($_curFldName)] } {
1455	SendCmd "dataset maprange all"
1456	} else {
1457	if { $_settings(-customrange) } {
1458	set vmin [$itk_component(min) value]
1459	set vmax [$itk_component(max) value]
1460	} else {
1461	foreach { vmin vmax } $_limits($_curFldName) break
1462	# set the min / max gauges with limits from the field
1463	# the legend's min and max text will be updated
1464	# when the legend is redrawn in DrawLegend
1465	SetMinMaxGauges $vmin $vmax
1466	}
1467	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName point_data $_curFldComp"
1468	}
1469	#SendCmd "cutplane colormode $_colorMode $_curFldName"
1470	SendCmd "glyphs colormode $_colorMode $_curFldName"
1471	DrawLegend
1472	}
1473	"-glyphedges" {
1474	set _changed($what) 1
1475	set bool $_settings($what)
1476	SendCmd "glyphs edges $bool"
1477	}
1478	"-glyphlighting" {
1479	set _changed($what) 1
1480	set bool $_settings($what)
1481	SendCmd "glyphs lighting $bool"
1482	}
1483	"-glyphnormscale" {
1484	set _changed($what) 1
1485	set bool $_settings($what)
1486	SendCmd "glyphs normscale $bool"
1487	}
1488	"-glyphopacity" {
1489	set _changed($what) 1
1490	set _settings($what) [expr $_widget($what) * 0.01]
1491	SendCmd "glyphs opacity $_settings($what)"
1492	}
1493	"-glyphorient" {
1494	set _changed($what) 1
1495	set bool $_settings($what)
1496	SendCmd "glyphs gorient $bool {}"
1497	}
1498	"-glyphscale" {
1499	set _changed($what) 1
1500	set val $_settings($what)
1501	if { [string is double $val] } {
1502	SendCmd "glyphs gscale $val"
1503	}
1504	}
1505	"-glyphscalemode" {
1506	set _changed($what) 1
1507	set label [$itk_component(scaleMode) value]
1508	set mode [$itk_component(scaleMode) translate $label]
1509	set _settings($what) $mode
1510	SendCmd "glyphs smode $mode {}"
1511	}
1512	"-glyphshape" {
1513	set _changed($what) 1
1514	set label [$itk_component(gshape) value]
1515	set shape [$itk_component(gshape) translate $label]
1516	set _settings($what) $shape
1517	SendCmd "glyphs shape $shape"
1518	}
1519	"-glyphsvisible" {
1520	set _changed($what) 1
1521	set bool $_settings($what)
1522	SendCmd "glyphs visible 0"
1523	if { $bool } {
1524	foreach tag [CurrentDatasets -visible] {
1525	SendCmd "glyphs visible $bool $tag"
1526	}
1527	Rappture::Tooltip::for $itk_component(glyphs) \
1528	"Hide the glyphs"
1529	} else {
1530	Rappture::Tooltip::for $itk_component(glyphs) \
1531	"Show the glyphs"
1532	}
1533	DrawLegend
1534	}
1535	"-glyphwireframe" {
1536	set _changed($what) 1
1537	set bool $_settings($what)
1538	SendCmd "glyphs wireframe $bool"
1539	}
1540	"-legendvisible" {
1541	if { !$_settings($what) } {
1542	$itk_component(view) delete legend
1543	}
1544	DrawLegend
1545	}
1546	"-ortho" {
1547	set bool $_view($what)
1548	if { $bool } {
1549	SendCmd "camera mode ortho"
1550	} else {
1551	SendCmd "camera mode persp"
1552	}
1553	}
1554	"-outline" {
1555	set _changed($what) 1
1556	set bool $_settings($what)
1557	SendCmd "outline visible 0"
1558	if { $bool } {
1559	foreach tag [CurrentDatasets -visible] {
1560	SendCmd "outline visible $bool $tag"
1561	}
1562	}
1563	}
1564	"-range" {
1565	if { $_settings(-customrange) } {
1566	set vmin [$itk_component(min) value]
1567	set vmax [$itk_component(max) value]
1568	} else {
1569	foreach { vmin vmax } $_limits($_curFldName) break
1570	}
1571	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName point_data $_curFldComp"
1572	DrawLegend
1573	}
1574	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1575	set _changed($what) 1
1576	set axis [string tolower [string range $what 1 1]]
1577	set bool $_settings($what)
1578	if { $bool } {
1579	$itk_component(${axis}position) configure -state normal \
1580	-troughcolor white
1581	} else {
1582	$itk_component(${axis}position) configure -state disabled \
1583	-troughcolor grey82
1584	}
1585	SendCmd "cutplane axis $axis $bool"
1586	}
1587	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1588	set _changed($what) 1
1589	set axis [string tolower [string range $what 1 1]]
1590	set pos [expr $_settings($what) * 0.01]
1591	SendCmd "cutplane slice ${axis} ${pos}"
1592	set _cutplanePending 0
1593	}
1594	"-xgrid" - "-ygrid" - "-zgrid" {
1595	set axis [string tolower [string range $what 1 1]]
1596	set bool $_settings($what)
1597	SendCmd "axis grid $axis $bool"
1598	}
1599	default {
1600	error "don't know how to fix $what"
1601	}
1602	}
1603	}
1604
1605	#
1606	# RequestLegend --
1607	#
1608	# Request a new legend from the server. The size of the legend
1609	# is determined from the height of the canvas.
1610	#
1611	# This should be called when
1612	# 1. A new current colormap is set.
1613	# 2. Window is resized.
1614	# 3. The limits of the data have changed. (Just need a redraw).
1615	# 4. Legend becomes visible (Just need a redraw).
1616	#
1617	itcl::body Rappture::VtkGlyphViewer::RequestLegend {} {
1618	set _legendPending 0
1619	if { ![info exists _fields($_curFldName)] } {
1620	return
1621	}
1622	set fname $_curFldName
1623	set font "Arial 8"
1624	set lineht [font metrics $font -linespace]
1625	set w 12
1626	set h [expr {$_height - 2 * ($lineht + 2)}]
1627	if { $h < 1 } {
1628	return
1629	}
1630	if { [string match "component*" $fname] } {
1631	set title ""
1632	} else {
1633	if { [info exists _fields($fname)] } {
1634	foreach { title units } $_fields($fname) break
1635	if { $units != "" } {
1636	set title [format "%s (%s)" $title $units]
1637	}
1638	} else {
1639	set title $fname
1640	}
1641	}
1642	# If there's a title too, subtract one more line
1643	if { $title != "" } {
1644	incr h -$lineht
1645	}
1646	# Set the legend on the first dataset.
1647	if { $_currentColormap != "" } {
1648	set cmap $_currentColormap
1649	if { ![info exists _colormaps($cmap)] } {
1650	BuildColormap $cmap
1651	set _colormaps($cmap) 1
1652	}
1653	#SendCmd "legend $cmap $_colorMode $_curFldName {} $w $h 0"
1654	SendCmd "legend2 $cmap $w $h"
1655	}
1656	}
1657
1658	# ----------------------------------------------------------------------
1659	# CONFIGURATION OPTION: -plotbackground
1660	# ----------------------------------------------------------------------
1661	itcl::configbody Rappture::VtkGlyphViewer::plotbackground {
1662	if { [isconnected] } {
1663	set rgb [Color2RGB $itk_option(-plotbackground)]
1664	SendCmd "screen bgcolor $rgb"
1665	}
1666	}
1667
1668	# ----------------------------------------------------------------------
1669	# CONFIGURATION OPTION: -plotforeground
1670	# ----------------------------------------------------------------------
1671	itcl::configbody Rappture::VtkGlyphViewer::plotforeground {
1672	if { [isconnected] } {
1673	set rgb [Color2RGB $itk_option(-plotforeground)]
1674	SendCmd "axis color all $rgb"
1675	SendCmd "outline color $rgb"
1676	#SendCmd "cutplane color $rgb"
1677	}
1678	}
1679
1680	itcl::body Rappture::VtkGlyphViewer::BuildGlyphTab {} {
1681	set fg [option get $itk_component(hull) font Font]
1682	#set bfg [option get $itk_component(hull) boldFont Font]
1683
1684	set inner [$itk_component(main) insert end \
1685	-title "Glyph Settings" \
1686	-icon [Rappture::icon volume-on]]
1687	$inner configure -borderwidth 4
1688
1689	checkbutton $inner.glyphs \
1690	-text "Glyphs" \
1691	-variable [itcl::scope _settings(-glyphsvisible)] \
1692	-command [itcl::code $this AdjustSetting -glyphsvisible] \
1693	-font "Arial 9"
1694
1695	label $inner.gshape_l -text "Glyph shape" -font "Arial 9"
1696	itk_component add gshape {
1697	Rappture::Combobox $inner.gshape -width 10 -editable 0
1698	}
1699	$inner.gshape choices insert end \
1700	"arrow" "arrow" \
1701	"cone" "cone" \
1702	"cube" "cube" \
1703	"cylinder" "cylinder" \
1704	"dodecahedron" "dodecahedron" \
1705	"icosahedron" "icosahedron" \
1706	"line" "line" \
1707	"octahedron" "octahedron" \
1708	"point" "point" \
1709	"sphere" "sphere" \
1710	"tetrahedron" "tetrahedron"
1711
1712	$itk_component(gshape) value $_settings(-glyphshape)
1713	bind $inner.gshape <<Value>> [itcl::code $this AdjustSetting -glyphshape]
1714
1715	label $inner.scaleMode_l -text "Scale by" -font "Arial 9"
1716	itk_component add scaleMode {
1717	Rappture::Combobox $inner.scaleMode -width 10 -editable 0
1718	}
1719	$inner.scaleMode choices insert end \
1720	"scalar" "Scalar" \
1721	"vmag" "Vector magnitude" \
1722	"vcomp" "Vector components" \
1723	"off" "Constant size"
1724
1725	$itk_component(scaleMode) value "[$itk_component(scaleMode) label $_settings(-glyphscalemode)]"
1726	bind $inner.scaleMode <<Value>> [itcl::code $this AdjustSetting -glyphscalemode]
1727
1728	checkbutton $inner.normscale \
1729	-text "Normalize scaling" \
1730	-variable [itcl::scope _settings(-glyphnormscale)] \
1731	-command [itcl::code $this AdjustSetting -glyphnormscale] \
1732	-font "Arial 9"
1733	Rappture::Tooltip::for $inner.normscale "If enabled, field values are normalized to \[0,1\] before scaling and scale factor is relative to a default size"
1734
1735	checkbutton $inner.gorient \
1736	-text "Orient" \
1737	-variable [itcl::scope _settings(-glyphorient)] \
1738	-command [itcl::code $this AdjustSetting -glyphorient] \
1739	-font "Arial 9"
1740	Rappture::Tooltip::for $inner.gorient "Orient glyphs by vector field directions"
1741
1742	checkbutton $inner.wireframe \
1743	-text "Wireframe" \
1744	-variable [itcl::scope _settings(-glyphwireframe)] \
1745	-command [itcl::code $this AdjustSetting -glyphwireframe] \
1746	-font "Arial 9"
1747
1748	checkbutton $inner.lighting \
1749	-text "Enable Lighting" \
1750	-variable [itcl::scope _settings(-glyphlighting)] \
1751	-command [itcl::code $this AdjustSetting -glyphlighting] \
1752	-font "Arial 9"
1753
1754	checkbutton $inner.edges \
1755	-text "Edges" \
1756	-variable [itcl::scope _settings(-glyphedges)] \
1757	-command [itcl::code $this AdjustSetting -glyphedges] \
1758	-font "Arial 9"
1759
1760	checkbutton $inner.outline \
1761	-text "Outline" \
1762	-variable [itcl::scope _settings(-outline)] \
1763	-command [itcl::code $this AdjustSetting -outline] \
1764	-font "Arial 9"
1765
1766	checkbutton $inner.legend \
1767	-text "Legend" \
1768	-variable [itcl::scope _settings(-legendvisible)] \
1769	-command [itcl::code $this AdjustSetting -legendvisible] \
1770	-font "Arial 9"
1771
1772	label $inner.background_l -text "Background" -font "Arial 9"
1773	itk_component add background {
1774	Rappture::Combobox $inner.background -width 10 -editable 0
1775	}
1776	$inner.background choices insert end \
1777	"black" "black" \
1778	"white" "white" \
1779	"grey" "grey"
1780
1781	$itk_component(background) value $_settings(-background)
1782	bind $inner.background <<Value>> \
1783	[itcl::code $this AdjustSetting -background]
1784
1785	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1786	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1787	-variable [itcl::scope _widget(-glyphopacity)] \
1788	-width 10 \
1789	-showvalue off \
1790	-command [itcl::code $this AdjustSetting -glyphopacity]
1791	$inner.opacity set [expr $_settings(-glyphopacity) * 100.0]
1792
1793	label $inner.gscale_l -text "Scale factor" -font "Arial 9"
1794	if {0} {
1795	::scale $inner.gscale -from 1 -to 100 -orient horizontal \
1796	-variable [itcl::scope _settings(-glyphscale)] \
1797	-width 10 \
1798	-showvalue off \
1799	-command [itcl::code $this AdjustSetting -glyphscale]
1800	} else {
1801	itk_component add gscale {
1802	entry $inner.gscale -font "Arial 9" -bg white \
1803	-textvariable [itcl::scope _settings(-glyphscale)]
1804	} {
1805	ignore -font -background
1806	}
1807	bind $inner.gscale <Return> \
1808	[itcl::code $this AdjustSetting -glyphscale]
1809	bind $inner.gscale <KP_Enter> \
1810	[itcl::code $this AdjustSetting -glyphscale]
1811	}
1812	Rappture::Tooltip::for $inner.gscale "Set scaling multiplier (or constant size)"
1813
1814	itk_component add field_l {
1815	label $inner.field_l -text "Color By" -font "Arial 9"
1816	} {
1817	ignore -font
1818	}
1819	itk_component add field {
1820	Rappture::Combobox $inner.field -width 10 -editable 0
1821	}
1822	bind $inner.field <<Value>> \
1823	[itcl::code $this AdjustSetting -field]
1824
1825	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1826	itk_component add colormap {
1827	Rappture::Combobox $inner.colormap -width 10 -editable 0
1828	}
1829
1830	$inner.colormap choices insert end [GetColormapList -includeNone]
1831	$itk_component(colormap) value "BCGYR"
1832	bind $inner.colormap <<Value>> \
1833	[itcl::code $this AdjustSetting -colormap]
1834
1835	# add widgets for setting a custom range on the legend
1836
1837	itk_component add crange {
1838	checkbutton $inner.crange \
1839	-text "Use Custom Range:" \
1840	-variable [itcl::scope _settings(-customrange)] \
1841	-command [itcl::code $this ToggleCustomRange] \
1842	-font "Arial 9"
1843	}
1844
1845	itk_component add l_min {
1846	label $inner.l_min -text "Min" -font "Arial 9"
1847	}
1848	itk_component add min {
1849	Rappture::Gauge $inner.min -font "Arial 9" \
1850	-validatecommand [itcl::code $this LegendRangeValidate "" vmin]
1851	}
1852	bind $itk_component(min) <<Value>> \
1853	[itcl::code $this AdjustSetting -range]
1854
1855	itk_component add l_max {
1856	label $inner.l_max -text "Max" -font "Arial 9"
1857	}
1858	itk_component add max {
1859	Rappture::Gauge $inner.max -font "Arial 9" \
1860	-validatecommand [itcl::code $this LegendRangeValidate "" vmax]
1861	}
1862	bind $itk_component(max) <<Value>> \
1863	[itcl::code $this AdjustSetting -range]
1864
1865	$itk_component(min) configure -state disabled
1866	$itk_component(max) configure -state disabled
1867
1868	blt::table $inner \
1869	0,0 $inner.field_l -anchor w -pady 2 \
1870	0,1 $inner.field -anchor w -pady 2 -fill x \
1871	1,0 $inner.colormap_l -anchor w -pady 2 \
1872	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1873	2,0 $inner.gshape_l -anchor w -pady 2 \
1874	2,1 $inner.gshape -anchor w -pady 2 -fill x \
1875	3,0 $inner.background_l -anchor w -pady 2 \
1876	3,1 $inner.background -anchor w -pady 2 -fill x \
1877	4,0 $inner.scaleMode_l -anchor w -pady 2 \
1878	4,1 $inner.scaleMode -anchor w -pady 2 -fill x \
1879	5,0 $inner.gscale_l -anchor w -pady 2 \
1880	5,1 $inner.gscale -anchor w -pady 2 -fill x \
1881	6,0 $inner.normscale -anchor w -pady 2 -cspan 2 \
1882	7,0 $inner.gorient -anchor w -pady 2 -cspan 2 \
1883	8,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1884	9,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1885	10,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1886	11,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1887	12,0 $inner.legend -anchor w -pady 2 \
1888	13,0 $inner.opacity_l -anchor w -pady 2 \
1889	13,1 $inner.opacity -anchor w -pady 2 -fill x \
1890	14,0 $inner.crange -anchor w -pady 2 -cspan 2 \
1891	15,0 $inner.l_min -anchor w -pady 2 \
1892	15,1 $inner.min -anchor w -pady 2 -fill x \
1893	16,0 $inner.l_max -anchor w -pady 2 \
1894	16,1 $inner.max -anchor w -pady 2 -fill x \
1895
1896	blt::table configure $inner r* c* -resize none
1897	blt::table configure $inner r17 c1 -resize expand
1898	}
1899
1900	itcl::body Rappture::VtkGlyphViewer::BuildAxisTab {} {
1901
1902	set fg [option get $itk_component(hull) font Font]
1903	#set bfg [option get $itk_component(hull) boldFont Font]
1904
1905	set inner [$itk_component(main) insert end \
1906	-title "Axis Settings" \
1907	-icon [Rappture::icon axis2]]
1908	$inner configure -borderwidth 4
1909
1910	checkbutton $inner.visible \
1911	-text "Axes" \
1912	-variable [itcl::scope _settings(-axesvisible)] \
1913	-command [itcl::code $this AdjustSetting -axesvisible] \
1914	-font "Arial 9"
1915
1916	checkbutton $inner.labels \
1917	-text "Axis Labels" \
1918	-variable [itcl::scope _settings(-axislabels)] \
1919	-command [itcl::code $this AdjustSetting -axislabels] \
1920	-font "Arial 9"
1921	label $inner.grid_l -text "Grid" -font "Arial 9"
1922	checkbutton $inner.xgrid \
1923	-text "X" \
1924	-variable [itcl::scope _settings(-xgrid)] \
1925	-command [itcl::code $this AdjustSetting -xgrid] \
1926	-font "Arial 9"
1927	checkbutton $inner.ygrid \
1928	-text "Y" \
1929	-variable [itcl::scope _settings(-ygrid)] \
1930	-command [itcl::code $this AdjustSetting -ygrid] \
1931	-font "Arial 9"
1932	checkbutton $inner.zgrid \
1933	-text "Z" \
1934	-variable [itcl::scope _settings(-zgrid)] \
1935	-command [itcl::code $this AdjustSetting -zgrid] \
1936	-font "Arial 9"
1937	checkbutton $inner.minorticks \
1938	-text "Minor Ticks" \
1939	-variable [itcl::scope _settings(-axisminorticks)] \
1940	-command [itcl::code $this AdjustSetting -axisminorticks] \
1941	-font "Arial 9"
1942
1943	label $inner.mode_l -text "Mode" -font "Arial 9"
1944
1945	itk_component add axisMode {
1946	Rappture::Combobox $inner.mode -width 10 -editable 0
1947	}
1948	$inner.mode choices insert end \
1949	"static_triad" "static" \
1950	"closest_triad" "closest" \
1951	"furthest_triad" "farthest" \
1952	"outer_edges" "outer"
1953	$itk_component(axisMode) value $_settings(-axismode)
1954	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1955
1956	blt::table $inner \
1957	0,0 $inner.visible -anchor w -cspan 4 \
1958	1,0 $inner.labels -anchor w -cspan 4 \
1959	2,0 $inner.minorticks -anchor w -cspan 4 \
1960	4,0 $inner.grid_l -anchor w \
1961	4,1 $inner.xgrid -anchor w \
1962	4,2 $inner.ygrid -anchor w \
1963	4,3 $inner.zgrid -anchor w \
1964	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1965	5,1 $inner.mode -fill x -cspan 3
1966
1967	blt::table configure $inner r* c* -resize none
1968	blt::table configure $inner r7 c6 -resize expand
1969	blt::table configure $inner r3 -height 0.125i
1970	}
1971
1972	itcl::body Rappture::VtkGlyphViewer::BuildCameraTab {} {
1973	set inner [$itk_component(main) insert end \
1974	-title "Camera Settings" \
1975	-icon [Rappture::icon camera]]
1976	$inner configure -borderwidth 4
1977
1978	label $inner.view_l -text "view" -font "Arial 9"
1979	set f [frame $inner.view]
1980	foreach side { front back left right top bottom } {
1981	button $f.$side -image [Rappture::icon view$side] \
1982	-command [itcl::code $this SetOrientation $side]
1983	Rappture::Tooltip::for $f.$side "Change the view to $side"
1984	pack $f.$side -side left
1985	}
1986
1987	blt::table $inner \
1988	0,0 $inner.view_l -anchor e -pady 2 \
1989	0,1 $inner.view -anchor w -pady 2
1990	blt::table configure $inner r0 -resize none
1991
1992	set labels { qx qy qz qw xpan ypan zoom }
1993	set row 1
1994	foreach tag $labels {
1995	label $inner.${tag}label -text $tag -font "Arial 9"
1996	entry $inner.${tag} -font "Arial 9" -bg white \
1997	-textvariable [itcl::scope _view(-$tag)]
1998	bind $inner.${tag} <Return> \
1999	[itcl::code $this camera set -${tag}]
2000	bind $inner.${tag} <KP_Enter> \
2001	[itcl::code $this camera set -${tag}]
2002	blt::table $inner \
2003	$row,0 $inner.${tag}label -anchor e -pady 2 \
2004	$row,1 $inner.${tag} -anchor w -pady 2
2005	blt::table configure $inner r$row -resize none
2006	incr row
2007	}
2008	checkbutton $inner.ortho \
2009	-text "Orthographic Projection" \
2010	-variable [itcl::scope _view(-ortho)] \
2011	-command [itcl::code $this AdjustSetting -ortho] \
2012	-font "Arial 9"
2013	blt::table $inner \
2014	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2015	blt::table configure $inner r$row -resize none
2016	incr row
2017
2018	blt::table configure $inner c* -resize none
2019	blt::table configure $inner c2 -resize expand
2020	blt::table configure $inner r$row -resize expand
2021	}
2022
2023	itcl::body Rappture::VtkGlyphViewer::BuildCutplanesTab {} {
2024
2025	set fg [option get $itk_component(hull) font Font]
2026
2027	set inner [$itk_component(main) insert end \
2028	-title "Cutplane Settings" \
2029	-icon [Rappture::icon cutbutton]]
2030
2031	$inner configure -borderwidth 4
2032
2033	checkbutton $inner.visible \
2034	-text "Cutplanes" \
2035	-variable [itcl::scope _settings(-cutplanesvisible)] \
2036	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2037	-font "Arial 9"
2038
2039	checkbutton $inner.wireframe \
2040	-text "Wireframe" \
2041	-variable [itcl::scope _settings(-cutplanewireframe)] \
2042	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
2043	-font "Arial 9"
2044
2045	checkbutton $inner.lighting \
2046	-text "Enable Lighting" \
2047	-variable [itcl::scope _settings(-cutplanelighting)] \
2048	-command [itcl::code $this AdjustSetting -cutplanelighting] \
2049	-font "Arial 9"
2050
2051	checkbutton $inner.edges \
2052	-text "Edges" \
2053	-variable [itcl::scope _settings(-cutplaneedges)] \
2054	-command [itcl::code $this AdjustSetting -cutplaneedges] \
2055	-font "Arial 9"
2056
2057	checkbutton $inner.preinterp \
2058	-text "Interpolate Scalars" \
2059	-variable [itcl::scope _settings(-cutplanepreinterp)] \
2060	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
2061	-font "Arial 9"
2062
2063	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2064	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2065	-variable [itcl::scope _widget(-cutplaneopacity)] \
2066	-width 10 \
2067	-showvalue off \
2068	-command [itcl::code $this AdjustSetting -cutplaneopacity]
2069	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
2070
2071	# X-value slicer...
2072	itk_component add xbutton {
2073	Rappture::PushButton $inner.xbutton \
2074	-onimage [Rappture::icon x-cutplane-red] \
2075	-offimage [Rappture::icon x-cutplane-red] \
2076	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2077	-variable [itcl::scope _settings(-xcutplanevisible)] \
2078	}
2079	Rappture::Tooltip::for $itk_component(xbutton) \
2080	"Toggle the X-axis cutplane on/off"
2081	$itk_component(xbutton) select
2082	itk_component add xposition {
2083	::scale $inner.xval -from 100 -to 0 \
2084	-width 10 -orient vertical -showvalue 1 \
2085	-borderwidth 1 -highlightthickness 0 \
2086	-command [itcl::code $this EventuallySetCutplane x] \
2087	-variable [itcl::scope _settings(-xcutplaneposition)] \
2088	-foreground red2 -font "Arial 9 bold"
2089	} {
2090	usual
2091	ignore -borderwidth -highlightthickness -foreground -font -background
2092	}
2093	# Set the default cutplane value before disabling the scale.
2094	$itk_component(xposition) set 50
2095	$itk_component(xposition) configure -state disabled
2096	Rappture::Tooltip::for $itk_component(xposition) \
2097	"@[itcl::code $this Slice tooltip x]"
2098
2099	# Y-value slicer...
2100	itk_component add ybutton {
2101	Rappture::PushButton $inner.ybutton \
2102	-onimage [Rappture::icon y-cutplane-green] \
2103	-offimage [Rappture::icon y-cutplane-green] \
2104	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2105	-variable [itcl::scope _settings(-ycutplanevisible)] \
2106	}
2107	Rappture::Tooltip::for $itk_component(ybutton) \
2108	"Toggle the Y-axis cutplane on/off"
2109	$itk_component(ybutton) select
2110
2111	itk_component add yposition {
2112	::scale $inner.yval -from 100 -to 0 \
2113	-width 10 -orient vertical -showvalue 1 \
2114	-borderwidth 1 -highlightthickness 0 \
2115	-command [itcl::code $this EventuallySetCutplane y] \
2116	-variable [itcl::scope _settings(-ycutplaneposition)] \
2117	-foreground green3 -font "Arial 9 bold"
2118	} {
2119	usual
2120	ignore -borderwidth -highlightthickness -foreground -font
2121	}
2122	Rappture::Tooltip::for $itk_component(yposition) \
2123	"@[itcl::code $this Slice tooltip y]"
2124	# Set the default cutplane value before disabling the scale.
2125	$itk_component(yposition) set 50
2126	$itk_component(yposition) configure -state disabled
2127
2128	# Z-value slicer...
2129	itk_component add zbutton {
2130	Rappture::PushButton $inner.zbutton \
2131	-onimage [Rappture::icon z-cutplane-blue] \
2132	-offimage [Rappture::icon z-cutplane-blue] \
2133	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2134	-variable [itcl::scope _settings(-zcutplanevisible)] \
2135	} {
2136	usual
2137	ignore -foreground
2138	}
2139	Rappture::Tooltip::for $itk_component(zbutton) \
2140	"Toggle the Z-axis cutplane on/off"
2141	$itk_component(zbutton) select
2142
2143	itk_component add zposition {
2144	::scale $inner.zval -from 100 -to 0 \
2145	-width 10 -orient vertical -showvalue 1 \
2146	-borderwidth 1 -highlightthickness 0 \
2147	-command [itcl::code $this EventuallySetCutplane z] \
2148	-variable [itcl::scope _settings(-zcutplaneposition)] \
2149	-foreground blue3 -font "Arial 9 bold"
2150	} {
2151	usual
2152	ignore -borderwidth -highlightthickness -foreground -font
2153	}
2154	$itk_component(zposition) set 50
2155	$itk_component(zposition) configure -state disabled
2156	Rappture::Tooltip::for $itk_component(zposition) \
2157	"@[itcl::code $this Slice tooltip z]"
2158
2159	blt::table $inner \
2160	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2161	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2162	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2163	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2164	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2165	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2166	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2167	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2168	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2169	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2170	6,1 $inner.xval -fill y -rspan 4 \
2171	6,2 $inner.yval -fill y -rspan 4 \
2172	6,3 $inner.zval -fill y -rspan 4 \
2173
2174	blt::table configure $inner r* c* -resize none
2175	blt::table configure $inner r9 c4 -resize expand
2176	}
2177
2178	#
2179	# camera --
2180	#
2181	itcl::body Rappture::VtkGlyphViewer::camera {option args} {
2182	switch -- $option {
2183	"show" {
2184	puts [array get _view]
2185	}
2186	"set" {
2187	set what [lindex $args 0]
2188	set x $_view($what)
2189	set code [catch { string is double $x } result]
2190	if { $code != 0 \|\| !$result } {
2191	return
2192	}
2193	switch -- $what {
2194	"-ortho" {
2195	if {$_view($what)} {
2196	SendCmd "camera mode ortho"
2197	} else {
2198	SendCmd "camera mode persp"
2199	}
2200	}
2201	"-xpan" - "-ypan" {
2202	PanCamera
2203	}
2204	"-qx" - "-qy" - "-qz" - "-qw" {
2205	set q [ViewToQuaternion]
2206	$_arcball quaternion $q
2207	EventuallyRotate $q
2208	}
2209	"-zoom" {
2210	SendCmd "camera zoom $_view($what)"
2211	}
2212	}
2213	}
2214	}
2215	}
2216
2217	itcl::body Rappture::VtkGlyphViewer::GetVtkData { args } {
2218	set bytes ""
2219	foreach dataobj [get] {
2220	foreach cname [$dataobj components] {
2221	set tag $dataobj-$cname
2222	set contents [$dataobj vtkdata $cname]
2223	append bytes "$contents\n"
2224	}
2225	}
2226	return [list .vtk $bytes]
2227	}
2228
2229	itcl::body Rappture::VtkGlyphViewer::GetImage { args } {
2230	if { [image width $_image(download)] > 0 &&
2231	[image height $_image(download)] > 0 } {
2232	set bytes [$_image(download) data -format "jpeg -quality 100"]
2233	set bytes [Rappture::encoding::decode -as b64 $bytes]
2234	return [list .jpg $bytes]
2235	}
2236	return ""
2237	}
2238
2239	itcl::body Rappture::VtkGlyphViewer::BuildDownloadPopup { popup command } {
2240	Rappture::Balloon $popup \
2241	-title "[Rappture::filexfer::label downloadWord] as..."
2242	set inner [$popup component inner]
2243	label $inner.summary -text "" -anchor w
2244	radiobutton $inner.vtk_button -text "VTK data file" \
2245	-variable [itcl::scope _downloadPopup(format)] \
2246	-font "Arial 9 " \
2247	-value vtk
2248	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2249	radiobutton $inner.image_button -text "Image File" \
2250	-variable [itcl::scope _downloadPopup(format)] \
2251	-font "Arial 9 " \
2252	-value image
2253	Rappture::Tooltip::for $inner.image_button \
2254	"Save as digital image."
2255
2256	button $inner.ok -text "Save" \
2257	-highlightthickness 0 -pady 2 -padx 3 \
2258	-command $command \
2259	-compound left \
2260	-image [Rappture::icon download]
2261
2262	button $inner.cancel -text "Cancel" \
2263	-highlightthickness 0 -pady 2 -padx 3 \
2264	-command [list $popup deactivate] \
2265	-compound left \
2266	-image [Rappture::icon cancel]
2267
2268	blt::table $inner \
2269	0,0 $inner.summary -cspan 2 \
2270	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2271	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2272	4,1 $inner.cancel -width .9i -fill y \
2273	4,0 $inner.ok -padx 2 -width .9i -fill y
2274	blt::table configure $inner r3 -height 4
2275	blt::table configure $inner r4 -pady 4
2276	raise $inner.image_button
2277	$inner.vtk_button invoke
2278	return $inner
2279	}
2280
2281	itcl::body Rappture::VtkGlyphViewer::SetObjectStyle { dataobj comp } {
2282	DebugTrace "Enter"
2283	# Parse style string.
2284	set tag $dataobj-$comp
2285	array set style {
2286	-color BCGYR
2287	-constcolor white
2288	-colormode vmag
2289	-cutplaneedges 0
2290	-cutplanelighting 1
2291	-cutplaneopacity 1.0
2292	-cutplanepreinterp 1
2293	-cutplanesvisible 0
2294	-cutplanewireframe 0
2295	-edgecolor black
2296	-edges 0
2297	-glyphsvisible 1
2298	-gscale 1
2299	-lighting 1
2300	-linewidth 1.0
2301	-normscale 1
2302	-opacity 1.0
2303	-orientglyphs 1
2304	-outline 0
2305	-ptsize 1.0
2306	-quality 1
2307	-scalemode vmag
2308	-shape arrow
2309	-wireframe 0
2310	-xcutplaneposition 50
2311	-xcutplanevisible 1
2312	-ycutplaneposition 50
2313	-ycutplanevisible 1
2314	-zcutplaneposition 50
2315	-zcutplanevisible 1
2316	}
2317	set style(-constcolor) $itk_option(-plotforeground)
2318	set numComponents [$dataobj numComponents $comp]
2319	if {$numComponents == 3} {
2320	set style(-shape) "arrow"
2321	set style(-orientglyphs) 1
2322	set style(-scalemode) "vmag"
2323	set style(-colormode) "vmag"
2324	} else {
2325	set style(-shape) "sphere"
2326	set style(-orientglyphs) 0
2327	set style(-scalemode) "scalar"
2328	set style(-colormode) "scalar"
2329	}
2330	array set style [$dataobj style $comp]
2331	# Backwards compat with camel case style option
2332	if { [info exists style(-orientGlyphs)] } {
2333	set style(-orientglyphs) $style(-orientGlyphs)
2334	array unset style -orientGlyphs
2335	}
2336	# Backwards compat with camel case style option
2337	if { [info exists style(-scaleMode)] } {
2338	set style(-scalemode) $style(-scaleMode)
2339	array unset style -scaleMode
2340	}
2341
2342	# This is too complicated. We want to set the colormap and opacity
2343	# for the dataset. They can be the default values,
2344	# the style hints loaded with the dataset, or set by user controls. As
2345	# datasets get loaded, they first use the defaults that are overidden
2346	# by the style hints. If the user changes the global controls, then that
2347	# overrides everything else. I don't know what it means when global
2348	# controls are specified as style hints by each dataset. It complicates
2349	# the code to handle aberrant cases.
2350
2351	if { $_changed(-glyphedges) } {
2352	set style(-edges) $_settings(-glyphedges)
2353	}
2354	if { $_changed(-glyphlighting) } {
2355	set style(-lighting) $_settings(-glyphlighting)
2356	}
2357	if { $_changed(-glyphnormscale) } {
2358	set style(-normscale) $_settings(-glyphnormscale)
2359	}
2360	if { $_changed(-glyphopacity) } {
2361	set style(-opacity) $_settings(-glyphopacity)
2362	}
2363	if { $_changed(-glyphorient) } {
2364	set style(-orientglyphs) $_settings(-glyphorient)
2365	}
2366	if { $_changed(-glyphscale) } {
2367	set style(-gscale) $_settings(-glyphscale)
2368	}
2369	if { $_changed(-glyphwireframe) } {
2370	set style(-wireframe) $_settings(-glyphwireframe)
2371	}
2372	if { $_changed(-colormap) } {
2373	set style(-color) $_settings(-colormap)
2374	}
2375	if { $_currentColormap == "" } {
2376	$itk_component(colormap) value $style(-color)
2377	}
2378	foreach setting {-outline -glyphsvisible -cutplanesvisible \
2379	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
2380	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
2381	-cutplaneedges -cutplanelighting -cutplaneopacity \
2382	-cutplanepreinterp -cutplanewireframe} {
2383	if {$_changed($setting)} {
2384	# User-modified UI setting overrides style
2385	set style($setting) $_settings($setting)
2386	} else {
2387	# Set UI control to style setting (tool provided or default)
2388	set _settings($setting) $style($setting)
2389	}
2390	}
2391
2392	if 0 {
2393	SendCmd "cutplane add $tag"
2394	SendCmd "cutplane visible 0 $tag"
2395	foreach axis {x y z} {
2396	set pos [expr $style(-${axis}cutplaneposition) * 0.01]
2397	set visible $style(-${axis}cutplanevisible)
2398	SendCmd "cutplane slice $axis $pos $tag"
2399	SendCmd "cutplane axis $axis $visible $tag"
2400	}
2401	SendCmd "cutplane edges $style(-cutplaneedges) $tag"
2402	SendCmd "cutplane lighting $style(-cutplanelighting) $tag"
2403	SendCmd "cutplane opacity $style(-cutplaneopacity) $tag"
2404	set _widget(-cutplaneopacity) [expr $style(-cutplaneopacity) * 100]
2405	SendCmd "cutplane preinterp $style(-cutplanepreinterp) $tag"
2406	SendCmd "cutplane wireframe $style(-cutplanewireframe) $tag"
2407	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2408	}
2409
2410	SendCmd "outline add $tag"
2411	SendCmd "outline color [Color2RGB $style(-constcolor)] $tag"
2412	SendCmd "outline visible $style(-outline) $tag"
2413
2414	SendCmd "glyphs add $style(-shape) $tag"
2415	set _settings(-glyphshape) $style(-shape)
2416	$itk_component(gshape) value $style(-shape)
2417	SendCmd "glyphs visible $style(-glyphsvisible) $tag"
2418	SendCmd "glyphs edges $style(-edges) $tag"
2419	set _settings(-glyphedges) $style(-edges)
2420
2421	# normscale=1 and gscale=1 are defaults
2422	if {$style(-normscale) != 1} {
2423	SendCmd "glyphs normscale $style(-normscale) $tag"
2424	}
2425	if {$style(-gscale) != 1} {
2426	SendCmd "glyphs gscale $style(-gscale) $tag"
2427	}
2428	set _settings(-glyphnormscale) $style(-normscale)
2429	set _settings(-glyphscale) $style(-gscale)
2430
2431	if {$style(-colormode) == "constant" \|\| $style(-color) == "none"} {
2432	SendCmd "glyphs colormode constant {} $tag"
2433	set _settings(-colormapvisible) 0
2434	set _settings(-colormap) "none"
2435	} else {
2436	SendCmd "glyphs colormode $style(-colormode) $_curFldName $tag"
2437	set _settings(-colormapvisible) 1
2438	set _settings(-colormap) $style(-color)
2439	SetCurrentColormap $style(-color)
2440	}
2441	$itk_component(colormap) value $_settings(-colormap)
2442	set _colorMode $style(-colormode)
2443
2444	# constant color only used if colormode set to constant
2445	SendCmd "glyphs color [Color2RGB $style(-constcolor)] $tag"
2446	# Omitting field name for gorient and smode commands
2447	# defaults to active scalars or vectors depending on mode
2448	SendCmd "glyphs gorient $style(-orientglyphs) {} $tag"
2449	set _settings(-glyphorient) $style(-orientglyphs)
2450	SendCmd "glyphs smode $style(-scalemode) {} $tag"
2451	set _settings(-glyphscalemode) $style(-scalemode)
2452	$itk_component(scaleMode) value "[$itk_component(scaleMode) label $style(-scalemode)]"
2453	SendCmd "glyphs quality $style(-quality) $tag"
2454	SendCmd "glyphs lighting $style(-lighting) $tag"
2455	set _settings(-glyphlighting) $style(-lighting)
2456	SendCmd "glyphs linecolor [Color2RGB $style(-edgecolor)] $tag"
2457	SendCmd "glyphs linewidth $style(-linewidth) $tag"
2458	SendCmd "glyphs ptsize $style(-ptsize) $tag"
2459	SendCmd "glyphs opacity $style(-opacity) $tag"
2460	set _settings(-glyphopacity) $style(-opacity)
2461	set _widget(-glyphopacity) [expr $style(-opacity) * 100.0]
2462	SendCmd "glyphs wireframe $style(-wireframe) $tag"
2463	set _settings(-glyphwireframe) $style(-wireframe)
2464	}
2465
2466	itcl::body Rappture::VtkGlyphViewer::IsValidObject { dataobj } {
2467	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2468	return 0
2469	}
2470	return 1
2471	}
2472
2473	#
2474	# EnterLegend --
2475	#
2476	itcl::body Rappture::VtkGlyphViewer::EnterLegend { x y } {
2477	SetLegendTip $x $y
2478	}
2479
2480	#
2481	# MotionLegend --
2482	#
2483	itcl::body Rappture::VtkGlyphViewer::MotionLegend { x y } {
2484	Rappture::Tooltip::tooltip cancel
2485	set c $itk_component(view)
2486	set cw [winfo width $c]
2487	set ch [winfo height $c]
2488	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2489	SetLegendTip $x $y
2490	}
2491	}
2492
2493	#
2494	# LeaveLegend --
2495	#
2496	itcl::body Rappture::VtkGlyphViewer::LeaveLegend { } {
2497	Rappture::Tooltip::tooltip cancel
2498	.rappturetooltip configure -icon ""
2499	}
2500
2501	# ----------------------------------------------------------------------
2502	# USAGE: LegendPointToValue <x> <y>
2503	#
2504	# Convert an x,y point on the legend to a numeric field value.
2505	# ----------------------------------------------------------------------
2506	itcl::body Rappture::VtkGlyphViewer::LegendPointToValue { x y } {
2507	set fname $_curFldName
2508
2509	set font "Arial 8"
2510	set lineht [font metrics $font -linespace]
2511
2512	set ih [image height $_image(legend)]
2513	set iy [expr $y - ($lineht + 2)]
2514
2515	# Compute the value of the point
2516	if { [info exists _limits($fname)] } {
2517	if { $_settings(-customrange) } {
2518	set vmin [$itk_component(min) value]
2519	set vmax [$itk_component(max) value]
2520	} else {
2521	foreach { vmin vmax } $_limits($fname) break
2522	}
2523	set t [expr 1.0 - (double($iy) / double($ih-1))]
2524	set value [expr $t * ($vmax - $vmin) + $vmin]
2525	} else {
2526	set value 0.0
2527	}
2528	return $value
2529	}
2530
2531	#
2532	# SetLegendTip --
2533	#
2534	itcl::body Rappture::VtkGlyphViewer::SetLegendTip { x y } {
2535	set fname $_curFldName
2536	set c $itk_component(view)
2537	set w [winfo width $c]
2538	set h [winfo height $c]
2539
2540	set font "Arial 8"
2541	set lineht [font metrics $font -linespace]
2542
2543	set ih [image height $_image(legend)]
2544	set iy [expr $y - ($lineht + 2)]
2545
2546	if { [string match "component*" $fname] } {
2547	set title ""
2548	} else {
2549	if { [info exists _fields($fname)] } {
2550	foreach { title units } $_fields($fname) break
2551	if { $units != "" } {
2552	set title [format "%s (%s)" $title $units]
2553	}
2554	} else {
2555	set title $fname
2556	}
2557	}
2558	# If there's a legend title, increase the offset by the line height.
2559	if { $title != "" } {
2560	incr iy -$lineht
2561	}
2562	# Make a swatch of the selected color
2563	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2564	return
2565	}
2566	if { ![info exists _image(swatch)] } {
2567	set _image(swatch) [image create photo -width 24 -height 24]
2568	}
2569	set color [eval format "\#%02x%02x%02x" $pixel]
2570	$_image(swatch) put black -to 0 0 23 23
2571	$_image(swatch) put $color -to 1 1 22 22
2572	.rappturetooltip configure -icon $_image(swatch)
2573
2574	# Compute the value of the point
2575	set value [LegendPointToValue $x $y]
2576
2577	# Setup the location of the tooltip
2578	set tx [expr $x + 15]
2579	set ty [expr $y - 5]
2580
2581	# Setup the text for the tooltip
2582	Rappture::Tooltip::text $c [format "$title %g" $value]
2583
2584	# Show the tooltip
2585	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2586	}
2587
2588	# ----------------------------------------------------------------------
2589	# USAGE: Slice move x\|y\|z <newval>
2590	#
2591	# Called automatically when the user drags the slider to move the
2592	# cut plane that slices 3D data. Gets the current value from the
2593	# slider and moves the cut plane to the appropriate point in the
2594	# data set.
2595	# ----------------------------------------------------------------------
2596	itcl::body Rappture::VtkGlyphViewer::Slice {option args} {
2597	switch -- $option {
2598	"move" {
2599	set axis [lindex $args 0]
2600	set newval [lindex $args 1]
2601	if {[llength $args] != 2} {
2602	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2603	}
2604	set newpos [expr {0.01*$newval}]
2605	SendCmd "cutplane slice $axis $newpos"
2606	}
2607	"tooltip" {
2608	set axis [lindex $args 0]
2609	set val [$itk_component(${axis}position) get]
2610	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2611	}
2612	default {
2613	error "bad option \"$option\": should be axis, move, or tooltip"
2614	}
2615	}
2616	}
2617
2618	#
2619	# ReceiveLegend --
2620	#
2621	# Invoked automatically whenever the "legend" command comes in from
2622	# the rendering server. Indicates that binary image data with the
2623	# specified <size> will follow.
2624	#
2625	itcl::body Rappture::VtkGlyphViewer::ReceiveLegend { colormap title min max size } {
2626	DebugTrace "Enter"
2627	set _title $title
2628	regsub {\(mag\)} $title "" _title
2629	if { [IsConnected] } {
2630	set bytes [ReceiveBytes $size]
2631	if { ![info exists _image(legend)] } {
2632	set _image(legend) [image create photo]
2633	}
2634	$_image(legend) configure -data $bytes
2635	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2636	if { [catch {DrawLegend} errs] != 0 } {
2637	global errorInfo
2638	puts stderr "errs=$errs errorInfo=$errorInfo"
2639	}
2640	}
2641	}
2642
2643	#
2644	# DrawLegend --
2645	#
2646	# Draws the legend on the canvas on the right side of the plot area.
2647	#
2648	itcl::body Rappture::VtkGlyphViewer::DrawLegend {} {
2649	set fname $_curFldName
2650	set c $itk_component(view)
2651	set w [winfo width $c]
2652	set h [winfo height $c]
2653	set font "Arial 8"
2654	set lineht [font metrics $font -linespace]
2655
2656	if { [string match "component*" $fname] } {
2657	set title ""
2658	} else {
2659	if { [info exists _fields($fname)] } {
2660	foreach { title units } $_fields($fname) break
2661	if { $units != "" } {
2662	set title [format "%s (%s)" $title $units]
2663	}
2664	} else {
2665	set title $fname
2666	}
2667	}
2668	set x [expr $w - 2]
2669	if { !$_settings(-legendvisible) } {
2670	$c delete legend
2671	return
2672	}
2673	if { [$c find withtag "legend"] == "" } {
2674	set y 2
2675	# If there's a legend title, create a text item for the title.
2676	$c create text $x $y \
2677	-anchor ne \
2678	-fill $itk_option(-plotforeground) -tags "title legend" \
2679	-font $font
2680	if { $title != "" } {
2681	incr y $lineht
2682	}
2683	$c create text $x $y \
2684	-anchor ne \
2685	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2686	-font $font
2687	incr y $lineht
2688	$c create image $x $y \
2689	-anchor ne \
2690	-image $_image(legend) -tags "colormap legend"
2691	$c create rectangle $x $y 1 1 \
2692	-fill "" -outline "" -tags "sensor legend"
2693	$c create text $x [expr {$h-2}] \
2694	-anchor se \
2695	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2696	-font $font
2697	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2698	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2699	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2700	}
2701	set x2 $x
2702	set iw [image width $_image(legend)]
2703	set ih [image height $_image(legend)]
2704	set x1 [expr $x2 - ($iw*12)/10]
2705
2706	$c bind title <ButtonPress> [itcl::code $this LegendTitleAction post]
2707	$c bind title <Enter> [itcl::code $this LegendTitleAction enter]
2708	$c bind title <Leave> [itcl::code $this LegendTitleAction leave]
2709	# Reset the item coordinates according the current size of the plot.
2710	$c itemconfigure title -text $title
2711	if { [info exists _limits($_curFldName)] } {
2712	if { $_settings(-customrange) } {
2713	set vmin [$itk_component(min) value]
2714	set vmax [$itk_component(max) value]
2715	} else {
2716	foreach { vmin vmax } $_limits($_curFldName) break
2717	}
2718	$c itemconfigure vmin -text [format %g $vmin]
2719	$c itemconfigure vmax -text [format %g $vmax]
2720	}
2721	set y 2
2722	# If there's a legend title, move the title to the correct position
2723	if { $title != "" } {
2724	$c itemconfigure title -text $title
2725	$c coords title $x $y
2726	incr y $lineht
2727	$c raise title
2728	}
2729	$c coords vmax $x $y
2730	incr y $lineht
2731	$c coords colormap $x $y
2732	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2733	$c raise sensor
2734	$c coords vmin $x [expr {$h - 2}]
2735
2736	$c bind vmin <ButtonPress> [itcl::code $this LegendRangeAction popup vmin]
2737	$c bind vmin <Enter> [itcl::code $this LegendRangeAction enter vmin]
2738	$c bind vmin <Leave> [itcl::code $this LegendRangeAction leave vmin]
2739
2740	$c bind vmax <ButtonPress> [itcl::code $this LegendRangeAction popup vmax]
2741	$c bind vmax <Enter> [itcl::code $this LegendRangeAction enter vmax]
2742	$c bind vmax <Leave> [itcl::code $this LegendRangeAction leave vmax]
2743	}
2744
2745	# ----------------------------------------------------------------------
2746	# USAGE: LegendTitleAction post
2747	# USAGE: LegendTitleAction enter
2748	# USAGE: LegendTitleAction leave
2749	# USAGE: LegendTitleAction save
2750	#
2751	# Used internally to handle the dropdown list for the fields menu combobox.
2752	# The post option is invoked when the field title is pressed to launch the
2753	# dropdown. The enter option is invoked when the user mouses over the field
2754	# title. The leave option is invoked when the user moves the mouse away
2755	# from the field title. The save option is invoked whenever there is a
2756	# selection from the list, to alert the visualization server.
2757	# ----------------------------------------------------------------------
2758	itcl::body Rappture::VtkGlyphViewer::LegendTitleAction {option} {
2759	set c $itk_component(view)
2760	switch -- $option {
2761	post {
2762	foreach { x1 y1 x2 y2 } [$c bbox title] break
2763	set cw [winfo width $itk_component(view)]
2764	set mw [winfo reqwidth $itk_component(fieldmenu)]
2765	set x1 [expr $cw - $mw]
2766	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2767	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2768	tk_popup $itk_component(fieldmenu) $x $y
2769	}
2770	enter {
2771	$c itemconfigure title -fill red
2772	}
2773	leave {
2774	$c itemconfigure title -fill $itk_option(-plotforeground)
2775	}
2776	save {
2777	$itk_component(field) value $_curFldLabel
2778	AdjustSetting -field
2779	}
2780	default {
2781	error "bad option \"$option\": should be post, enter, leave or save"
2782	}
2783	}
2784	}
2785
2786	# ----------------------------------------------------------------------
2787	# USAGE: LegendRangeValidate <widget> <which> <value>
2788	#
2789	# Used internally to validate a legend range min/max value.
2790	# Returns a boolean value telling if <value> was accepted (1) or rejected (0)
2791	# If the value is rejected, a tooltip/warning message is popped up
2792	# near the widget that asked for the validation, specified by <widget>
2793	#
2794	# <widget> is the widget where a tooltip/warning message should show up on
2795	# <which> is either "vmin" or "vmax".
2796	# <value> is the value to be validated.
2797	# ----------------------------------------------------------------------
2798	itcl::body Rappture::VtkGlyphViewer::LegendRangeValidate {widget which value} {
2799	#check for a valid value
2800	if {[string is double $value] != 1} {
2801	set msg "should be valid number"
2802	if {$widget != ""} {
2803	Rappture::Tooltip::cue $widget $msg
2804	} else {
2805	# error "bad value \"$value\": $msg"
2806	error $msg
2807	}
2808	return 0
2809	}
2810
2811	switch -- $which {
2812	vmin {
2813	# check for min > max
2814	if {$value > [$itk_component(max) value]} {
2815	set msg "min > max, change max first"
2816	if {$widget != ""} {
2817	Rappture::Tooltip::cue $widget $msg
2818	} else {
2819	# error "bad value \"$value\": $msg"
2820	error $msg
2821	}
2822	return 0
2823	}
2824	}
2825	vmax {
2826	# check for max < min
2827	if {$value < [$itk_component(min) value]} {
2828	set msg "max < min, change min first"
2829	if {$widget != ""} {
2830	Rappture::Tooltip::cue $widget $msg
2831	} else {
2832	# error "bad value \"$value\": $msg"
2833	error $msg
2834	}
2835	return 0
2836	}
2837	}
2838	default {
2839	error "bad option \"$which\": should be vmin, vmax"
2840	}
2841	}
2842	}
2843
2844	itcl::body Rappture::VtkGlyphViewer::MouseOver2Which {} {
2845	switch -- $_mouseOver {
2846	vmin {
2847	set which min
2848	}
2849	vmax {
2850	set which max
2851	}
2852	default {
2853	error "bad _mouseOver \"$_mouseOver\": should be vmin, vmax"
2854	}
2855	}
2856	return $which
2857	}
2858
2859	# ----------------------------------------------------------------------
2860	# USAGE: LegendRangeAction enter <which>
2861	# USAGE: LegendRangeAction leave <which>
2862	#
2863	# USAGE: LegendRangeAction popup <which>
2864	# USAGE: LegendRangeAction activate
2865	# USAGE: LegendRangeAction validate <value>
2866	# USAGE: LegendRangeAction apply <value>
2867	#
2868	# Used internally to handle the mouseover and popup entry for the field range
2869	# inputs. The enter option is invoked when the user moves the mouse over the
2870	# min or max field range. The leave option is invoked when the user moves the
2871	# mouse away from the min or max field range. The popup option is invoked when
2872	# the user click's on a field range. The popup option stores internally which
2873	# widget is requesting a popup ( in the _mouseOver variable) and calls the
2874	# activate command of the widget. The widget's activate command calls back to
2875	# this method to get the xywh dimensions of the popup editor. After the user
2876	# changes focus or sets the value in the editor, the editor calls this methods
2877	# validate and apply options to set the value.
2878	# ----------------------------------------------------------------------
2879	itcl::body Rappture::VtkGlyphViewer::LegendRangeAction {option args} {
2880	set c $itk_component(view)
2881
2882	switch -- $option {
2883	enter {
2884	set which [lindex $args 0]
2885	$c itemconfigure $which -fill red
2886	}
2887	leave {
2888	set which [lindex $args 0]
2889	$c itemconfigure $which -fill $itk_option(-plotforeground)
2890	}
2891	popup {
2892	DisableMouseRotationBindings
2893	set which [lindex $args 0]
2894	set _mouseOver $which
2895	$itk_component(editor) activate
2896	}
2897	activate {
2898	foreach { x1 y1 x2 y2 } [$c bbox $_mouseOver] break
2899	set which [MouseOver2Which]
2900	set info(text) [$itk_component($which) value]
2901	set info(x) [expr $x1 + [winfo rootx $c]]
2902	set info(y) [expr $y1 + [winfo rooty $c]]
2903	set info(w) [expr $x2 - $x1]
2904	set info(h) [expr $y2 - $y1]
2905	return [array get info]
2906	}
2907	validate {
2908	if {[llength $args] != 1} {
2909	error "wrong # args: should be \"editor validate value\""
2910	}
2911
2912	set value [lindex $args 0]
2913	if {[LegendRangeValidate $itk_component(editor) $_mouseOver $value] == 0} {
2914	return 0
2915	}
2916
2917	# value was good, apply it
2918	# reset the mouse rotation bindings
2919	SetupMouseRotationBindings
2920	}
2921	apply {
2922	if {[llength $args] != 1} {
2923	error "wrong # args: should be \"editor apply value\""
2924	}
2925	set value [string trim [lindex $args 0]]
2926
2927	set which [MouseOver2Which]
2928
2929	# only set custom range if value changed
2930	if {[$itk_component($which) value] != $value} {
2931	# set the flag stating the custom range came from the legend
2932	# change the value in the gauge
2933	# turn on crange to enable the labels and gauges
2934	# call AdjustSetting -range (inside ToggleCustomRange)
2935	# to update drawing and legend
2936	set _customRangeClick 0
2937	$itk_component($which) value $value
2938	$itk_component(crange) select
2939	ToggleCustomRange
2940	}
2941	}
2942	default {
2943	error "bad option \"$option\": should be enter, leave, activate, validate, apply"
2944	}
2945	}
2946	}
2947
2948	# ----------------------------------------------------------------------
2949	# USAGE: ToggleCustomRange
2950	#
2951	# Called whenever the custom range is turned on or off. Used to save
2952	# the custom min and custom max set by the user. When the -customrange
2953	# setting is turned on, the range min and range max gauges are set
2954	# with the last value set by the user, or the default range if no
2955	# previous min and max were set.
2956	#
2957	# When the custom range is turned on, we check how it was turned on
2958	# by querying _customRangeClick. If the variable is 1, this means
2959	# the user clicked the crange checkbutton and we should pull the
2960	# custom range values from our backup variables. If the variable is 0,
2961	# the custom range was enabled through the user manipulating the
2962	# min and max value in the legend.
2963	# ----------------------------------------------------------------------
2964	itcl::body Rappture::VtkGlyphViewer::ToggleCustomRange {args} {
2965	if { ! $_settings(-customrange) } {
2966	# custom range was turned off
2967
2968	# disable the min/max labels and gauge widgets
2969	$itk_component(l_min) configure -state disabled
2970	$itk_component(min) configure -state disabled
2971	$itk_component(l_max) configure -state disabled
2972	$itk_component(max) configure -state disabled
2973
2974	# backup the custom range
2975	set _settings(-customrangemin) [$itk_component(min) value]
2976	set _settings(-customrangemax) [$itk_component(max) value]
2977
2978	# set the gauges to dataset's min and max
2979	foreach { vmin vmax } $_limits($_curFldName) break
2980	SetMinMaxGauges $vmin $vmax
2981	} else {
2982	# custom range was turned on
2983
2984	# enable the min/max labels and gauge widgets
2985	$itk_component(l_min) configure -state normal
2986	$itk_component(min) configure -state normal
2987	$itk_component(l_max) configure -state normal
2988	$itk_component(max) configure -state normal
2989
2990	# if the custom range is being turned on by clicking the
2991	# checkbox, restore the min and max gauges from the backup
2992	# variables. otherwise, new values for the min and max
2993	# widgets will be set later from the legend's editor.
2994	if { $_customRangeClick } {
2995	SetMinMaxGauges $_settings(-customrangemin) $_settings(-customrangemax)
2996	}
2997
2998	# reset the click flag
2999	set _customRangeClick 1
3000	}
3001	AdjustSetting -range
3002	}
3003
3004	# ----------------------------------------------------------------------
3005	# USAGE: SetMinMaxGauges <min> <max>
3006	#
3007	# Set the min and max gauges in the correct order, avoiding the
3008	# error where you try to set the min > max before updating the max or
3009	# set the max < min before updating the min.
3010	#
3011	# There are five range cases to consider with our current range validation.
3012	# For example:
3013	# [2,3] -> [0,1] : update min first, max last
3014	# [2,3] -> [4,5] : update max first, min last
3015	# [2,3] -> [0,2.5] : update min or max first
3016	# [2,3] -> [2.5,5] : update min or max first
3017	# [2,3] -> [2.25,2.75] : update min or max first
3018	#
3019	# In 4 of the cases we can update min first and max last, so we only
3020	# need to check the case where old max < new min, where we update
3021	# max first and min last.
3022	# ----------------------------------------------------------------------
3023	itcl::body Rappture::VtkGlyphViewer::SetMinMaxGauges {min max} {
3024
3025	if { [$itk_component(max) value] < $min} {
3026	# old max < new min
3027	# shift range toward right
3028	# extend max first, then update min
3029	$itk_component(max) value $max
3030	$itk_component(min) value $min
3031	} else {
3032	# extend min first, then update max
3033	$itk_component(min) value $min
3034	$itk_component(max) value $max
3035	}
3036	}
3037
3038	#
3039	# SetCurrentColormap --
3040	#
3041	itcl::body Rappture::VtkGlyphViewer::SetCurrentColormap { name } {
3042	# Keep track of the colormaps that we build.
3043	if { ![info exists _colormaps($name)] } {
3044	BuildColormap $name
3045	set _colormaps($name) 1
3046	}
3047	set _currentColormap $name
3048	SendCmd "glyphs colormap $_currentColormap"
3049	#SendCmd "cutplane colormap $_currentColormap"
3050	}
3051
3052	#
3053	# BuildColormap --
3054	#
3055	# Build the designated colormap on the server.
3056	#
3057	itcl::body Rappture::VtkGlyphViewer::BuildColormap { name } {
3058	set cmap [ColorsToColormap $name]
3059	if { [llength $cmap] == 0 } {
3060	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
3061	}
3062	set amap "0.0 1.0 1.0 1.0"
3063	SendCmd "colormap add $name { $cmap } { $amap }"
3064	}
3065
3066	itcl::body Rappture::VtkGlyphViewer::SetOrientation { side } {
3067	array set positions {
3068	front "1 0 0 0"
3069	back "0 0 1 0"
3070	left "0.707107 0 -0.707107 0"
3071	right "0.707107 0 0.707107 0"
3072	top "0.707107 -0.707107 0 0"
3073	bottom "0.707107 0.707107 0 0"
3074	}
3075	foreach name { -qw -qx -qy -qz } value $positions($side) {
3076	set _view($name) $value
3077	}
3078	set q [ViewToQuaternion]
3079	$_arcball quaternion $q
3080	SendCmd "camera orient $q"
3081	SendCmd "camera reset"
3082	set _view(-xpan) 0
3083	set _view(-ypan) 0
3084	set _view(-zoom) 1.0
3085	}
3086
3087	itcl::body Rappture::VtkGlyphViewer::SetCurrentFieldName { dataobj } {
3088	set _first $dataobj
3089	$itk_component(field) choices delete 0 end
3090	$itk_component(fieldmenu) delete 0 end
3091	array unset _fields
3092	set _curFldName ""
3093	foreach cname [$_first components] {
3094	foreach fname [$_first fieldnames $cname] {
3095	if { [info exists _fields($fname)] } {
3096	continue
3097	}
3098	foreach { label units components } \
3099	[$_first fieldinfo $fname] break
3100	$itk_component(field) choices insert end "$fname" "$label"
3101	$itk_component(fieldmenu) add radiobutton -label "$label" \
3102	-value $label -variable [itcl::scope _curFldLabel] \
3103	-selectcolor red \
3104	-activebackground $itk_option(-plotbackground) \
3105	-activeforeground $itk_option(-plotforeground) \
3106	-font "Arial 8" \
3107	-command [itcl::code $this LegendTitleAction save]
3108	set _fields($fname) [list $label $units $components]
3109	if { $_curFldName == "" } {
3110	set _curFldName $fname
3111	set _curFldLabel $label
3112	set _curFldComp $components
3113	}
3114	}
3115	}
3116	$itk_component(field) value $_curFldLabel
3117	if { $_settings(-customrange) } {
3118	set limits [list [$itk_component(min) value] [$itk_component(max) value]]
3119	SendCmd "dataset maprange explicit $limits $_curFldName point_data $_curFldComp"
3120	} else {
3121	if { ![info exists _limits($_curFldName)] } {
3122	SendCmd "dataset maprange all"
3123	} else {
3124	set limits $_limits($_curFldName)
3125	SendCmd "dataset maprange explicit $limits $_curFldName point_data $_curFldComp"
3126	}
3127	}
3128	}

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