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source: branches/1.4/gui/scripts/vtkstreamlinesviewer.tcl @ 5370

Last change on this file since 5370 was 5349, checked in by ldelgass, 9 years ago
merge r5347 from trunk
File size: 83.5 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkstreamlinesviewer - Vtk streamlines object viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2014 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	package require Img
17
18	option add *VtkStreamlinesViewer.width 4i widgetDefault
19	option add VtkStreamlinesViewercursor crosshair widgetDefault
20	option add *VtkStreamlinesViewer.height 4i widgetDefault
21	option add *VtkStreamlinesViewer.foreground black widgetDefault
22	option add *VtkStreamlinesViewer.controlBackground gray widgetDefault
23	option add *VtkStreamlinesViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkStreamlinesViewer.plotBackground black widgetDefault
25	option add *VtkStreamlinesViewer.plotForeground white widgetDefault
26	option add *VtkStreamlinesViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkStreamlinesViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkStreamlinesViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkStreamlinesViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { hostlist args } {
42	Rappture::VisViewer::constructor $hostlist
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method parameters {title args} {
60	# do nothing
61	}
62	public method scale {args}
63
64	# The following methods are only used by this class.
65	private method AdjustSetting {what {value ""}}
66	private method BuildAxisTab {}
67	private method BuildCameraTab {}
68	private method BuildColormap { name colors }
69	private method BuildCutplaneTab {}
70	private method BuildDownloadPopup { widget command }
71	private method BuildStreamsTab {}
72	private method BuildVolumeTab {}
73	private method DrawLegend {}
74	private method Combo { option }
75	private method Connect {}
76	private method CurrentDatasets {args}
77	private method Disconnect {}
78	private method DoResize {}
79	private method DoReseed {}
80	private method DoRotate {}
81	private method EnterLegend { x y }
82	private method EventuallyResize { w h }
83	private method EventuallyReseed { numPoints }
84	private method EventuallyRotate { q }
85	private method EventuallySetCutplane { axis args }
86	private method GetImage { args }
87	private method GetVtkData { args }
88	private method InitSettings { args }
89	private method IsValidObject { dataobj }
90	private method LeaveLegend {}
91	private method MotionLegend { x y }
92	private method Pan {option x y}
93	private method PanCamera {}
94	private method Pick {x y}
95	private method QuaternionToView { q } {
96	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
97	}
98	private method Rebuild {}
99	private method ReceiveDataset { args }
100	private method ReceiveImage { args }
101	private method ReceiveLegend { colormap title vmin vmax size }
102	private method RequestLegend {}
103	private method Rotate {option x y}
104	private method SetColormap { dataobj comp }
105	private method ChangeColormap { dataobj comp color }
106	private method SetLegendTip { x y }
107	private method SetObjectStyle { dataobj comp }
108	private method Slice {option args}
109	private method SetOrientation { side }
110	private method ViewToQuaternion {} {
111	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
112	}
113	private method Zoom {option}
114
115	private variable _arcball ""
116
117	private variable _dlist "" ; # list of data objects
118	private variable _obj2ovride ; # maps dataobj => style override
119	private variable _datasets ; # contains all the dataobj-component
120	; # datasets in the server
121	private variable _colormaps ; # contains all the colormaps
122	; # in the server.
123	private variable _dataset2style ;# maps dataobj-component to transfunc
124
125	private variable _click ; # info used for rotate operations
126	private variable _limits ; # autoscale min/max for all axes
127	private variable _view ; # view params for 3D view
128	private variable _settings
129	private variable _style; # Array of current component styles.
130	private variable _initialStyle; # Array of initial component styles.
131	private variable _reset 1; # Connection to server has been reset.
132
133	private variable _first "" ; # This is the topmost dataset.
134	private variable _start 0
135	private variable _title ""
136	private variable _seeds
137
138	private common _downloadPopup; # download options from popup
139	private common _hardcopy
140	private variable _width 0
141	private variable _height 0
142	private variable _resizePending 0
143	private variable _reseedPending 0
144	private variable _rotatePending 0
145	private variable _cutplanePending 0
146	private variable _legendPending 0
147	private variable _vectorFields
148	private variable _scalarFields
149	private variable _fields
150	private variable _curFldName ""
151	private variable _curFldLabel ""
152	private variable _field ""
153	private variable _numSeeds 200
154	private variable _colorMode "vmag";# Mode of colormap (vmag or scalar)
155	}
156
157	itk::usual VtkStreamlinesViewer {
158	keep -background -foreground -cursor -font
159	keep -plotbackground -plotforeground
160	}
161
162	# ----------------------------------------------------------------------
163	# CONSTRUCTOR
164	# ----------------------------------------------------------------------
165	itcl::body Rappture::VtkStreamlinesViewer::constructor {hostlist args} {
166	set _serverType "vtkvis"
167
168	EnableWaitDialog 2000
169
170	# Rebuild event
171	$_dispatcher register !rebuild
172	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
173
174	# Resize event
175	$_dispatcher register !resize
176	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
177
178	# Reseed event
179	$_dispatcher register !reseed
180	$_dispatcher dispatch $this !reseed "[itcl::code $this DoReseed]; list"
181
182	# Rotate event
183	$_dispatcher register !rotate
184	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
185
186	# Legend event
187	$_dispatcher register !legend
188	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
189
190	# X-Cutplane event
191	$_dispatcher register !xcutplane
192	$_dispatcher dispatch $this !xcutplane \
193	"[itcl::code $this AdjustSetting -cutplanexposition]; list"
194
195	# Y-Cutplane event
196	$_dispatcher register !ycutplane
197	$_dispatcher dispatch $this !ycutplane \
198	"[itcl::code $this AdjustSetting -cutplaneyposition]; list"
199
200	# Z-Cutplane event
201	$_dispatcher register !zcutplane
202	$_dispatcher dispatch $this !zcutplane \
203	"[itcl::code $this AdjustSetting -cutplanezposition]; list"
204
205	#
206	# Populate parser with commands handle incoming requests
207	#
208	$_parser alias image [itcl::code $this ReceiveImage]
209	$_parser alias dataset [itcl::code $this ReceiveDataset]
210	$_parser alias legend [itcl::code $this ReceiveLegend]
211
212	# Initialize the view to some default parameters.
213	array set _view {
214	-ortho 0
215	-qw 0.853553
216	-qx -0.353553
217	-qy 0.353553
218	-qz 0.146447
219	-xpan 0
220	-ypan 0
221	-zoom 1.0
222	}
223	set _arcball [blt::arcball create 100 100]
224	$_arcball quaternion [ViewToQuaternion]
225
226	array set _settings [subst {
227	-axesvisible 1
228	-axislabelsvisible 1
229	-axisminorticks 1
230	-axismode "static"
231	-cutplaneedges 0
232	-cutplanelighting 1
233	-cutplaneopacity 100
234	-cutplanevisible 0
235	-cutplanewireframe 0
236	-cutplanexposition 50
237	-cutplanexvisible 1
238	-cutplaneyposition 50
239	-cutplaneyvisible 1
240	-cutplanezposition 50
241	-cutplanezvisible 1
242	-legendvisible 1
243	-streamlineslighting 1
244	-streamlinesmode lines
245	-streamlinesnumseeds 200
246	-streamlinesopacity 100
247	-streamlinesscale 1
248	-streamlinesseedsvisible 0
249	-streamlinesvisible 1
250	-volumeedges 0
251	-volumelighting 1
252	-volumeopacity 40
253	-volumevisible 1
254	-volumewireframe 0
255	-xgrid 0
256	-ygrid 0
257	-zgrid 0
258	}]
259
260	itk_component add view {
261	canvas $itk_component(plotarea).view \
262	-highlightthickness 0 -borderwidth 0
263	} {
264	usual
265	ignore -highlightthickness -borderwidth -background
266	}
267
268	itk_component add fieldmenu {
269	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
270	-tearoff no
271	} {
272	usual
273	ignore -background -foreground -relief -tearoff
274	}
275	set c $itk_component(view)
276	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
277	bind $c <4> [itcl::code $this Zoom in 0.25]
278	bind $c <5> [itcl::code $this Zoom out 0.25]
279	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
280	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
281	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
282	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
283	bind $c <Enter> "focus %W"
284	bind $c <Control-F1> [itcl::code $this ToggleConsole]
285
286	# Fix the scrollregion in case we go off screen
287	$c configure -scrollregion [$c bbox all]
288
289	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
290	set _map(cwidth) -1
291	set _map(cheight) -1
292	set _map(zoom) 1.0
293	set _map(original) ""
294
295	set f [$itk_component(main) component controls]
296	itk_component add reset {
297	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
298	-highlightthickness 0 \
299	-image [Rappture::icon reset-view] \
300	-command [itcl::code $this Zoom reset]
301	} {
302	usual
303	ignore -highlightthickness
304	}
305	pack $itk_component(reset) -side top -padx 2 -pady 2
306	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
307
308	itk_component add zoomin {
309	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
310	-highlightthickness 0 \
311	-image [Rappture::icon zoom-in] \
312	-command [itcl::code $this Zoom in]
313	} {
314	usual
315	ignore -highlightthickness
316	}
317	pack $itk_component(zoomin) -side top -padx 2 -pady 2
318	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
319
320	itk_component add zoomout {
321	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
322	-highlightthickness 0 \
323	-image [Rappture::icon zoom-out] \
324	-command [itcl::code $this Zoom out]
325	} {
326	usual
327	ignore -highlightthickness
328	}
329	pack $itk_component(zoomout) -side top -padx 2 -pady 2
330	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
331
332	itk_component add volume {
333	Rappture::PushButton $f.volume \
334	-onimage [Rappture::icon volume-on] \
335	-offimage [Rappture::icon volume-off] \
336	-variable [itcl::scope _settings(-volumevisible)] \
337	-command [itcl::code $this AdjustSetting -volumevisible]
338	}
339	$itk_component(volume) select
340	Rappture::Tooltip::for $itk_component(volume) \
341	"Don't display the volume"
342	pack $itk_component(volume) -padx 2 -pady 2
343
344	itk_component add streamlines {
345	Rappture::PushButton $f.streamlines \
346	-onimage [Rappture::icon streamlines-on] \
347	-offimage [Rappture::icon streamlines-off] \
348	-variable [itcl::scope _settings(-streamlinesvisible)] \
349	-command [itcl::code $this AdjustSetting -streamlinesvisible] \
350	}
351	$itk_component(streamlines) select
352	Rappture::Tooltip::for $itk_component(streamlines) \
353	"Toggle the streamlines on/off"
354	pack $itk_component(streamlines) -padx 2 -pady 2
355
356	itk_component add cutplane {
357	Rappture::PushButton $f.cutplane \
358	-onimage [Rappture::icon cutbutton] \
359	-offimage [Rappture::icon cutbutton] \
360	-variable [itcl::scope _settings(-cutplanevisible)] \
361	-command [itcl::code $this AdjustSetting -cutplanevisible]
362	}
363	Rappture::Tooltip::for $itk_component(cutplane) \
364	"Show/Hide cutplanes"
365	pack $itk_component(cutplane) -padx 2 -pady 2
366
367
368	if { [catch {
369	BuildVolumeTab
370	BuildStreamsTab
371	BuildCutplaneTab
372	BuildAxisTab
373	BuildCameraTab
374	} errs] != 0 } {
375	puts stderr errs=$errs
376	}
377	# Legend
378
379	set _image(legend) [image create photo]
380	itk_component add legend {
381	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
382	} {
383	usual
384	ignore -highlightthickness
385	rename -background -plotbackground plotBackground Background
386	}
387
388	# Hack around the Tk panewindow. The problem is that the requested
389	# size of the 3d view isn't set until an image is retrieved from
390	# the server. So the panewindow uses the tiny size.
391	set w 10000
392	pack forget $itk_component(view)
393	blt::table $itk_component(plotarea) \
394	0,0 $itk_component(view) -fill both -reqwidth $w
395	blt::table configure $itk_component(plotarea) c1 -resize none
396
397	# Bindings for rotation via mouse
398	bind $itk_component(view) <ButtonPress-1> \
399	[itcl::code $this Rotate click %x %y]
400	bind $itk_component(view) <B1-Motion> \
401	[itcl::code $this Rotate drag %x %y]
402	bind $itk_component(view) <ButtonRelease-1> \
403	[itcl::code $this Rotate release %x %y]
404
405	# Bindings for panning via mouse
406	bind $itk_component(view) <ButtonPress-2> \
407	[itcl::code $this Pan click %x %y]
408	bind $itk_component(view) <B2-Motion> \
409	[itcl::code $this Pan drag %x %y]
410	bind $itk_component(view) <ButtonRelease-2> \
411	[itcl::code $this Pan release %x %y]
412
413	#bind $itk_component(view) <ButtonRelease-3> \
414	# [itcl::code $this Pick %x %y]
415
416	# Bindings for panning via keyboard
417	bind $itk_component(view) <KeyPress-Left> \
418	[itcl::code $this Pan set -10 0]
419	bind $itk_component(view) <KeyPress-Right> \
420	[itcl::code $this Pan set 10 0]
421	bind $itk_component(view) <KeyPress-Up> \
422	[itcl::code $this Pan set 0 -10]
423	bind $itk_component(view) <KeyPress-Down> \
424	[itcl::code $this Pan set 0 10]
425	bind $itk_component(view) <Shift-KeyPress-Left> \
426	[itcl::code $this Pan set -2 0]
427	bind $itk_component(view) <Shift-KeyPress-Right> \
428	[itcl::code $this Pan set 2 0]
429	bind $itk_component(view) <Shift-KeyPress-Up> \
430	[itcl::code $this Pan set 0 -2]
431	bind $itk_component(view) <Shift-KeyPress-Down> \
432	[itcl::code $this Pan set 0 2]
433
434	# Bindings for zoom via keyboard
435	bind $itk_component(view) <KeyPress-Prior> \
436	[itcl::code $this Zoom out]
437	bind $itk_component(view) <KeyPress-Next> \
438	[itcl::code $this Zoom in]
439
440	bind $itk_component(view) <Enter> "focus $itk_component(view)"
441
442	if {[string equal "x11" [tk windowingsystem]]} {
443	# Bindings for zoom via mouse
444	bind $itk_component(view) <4> [itcl::code $this Zoom out]
445	bind $itk_component(view) <5> [itcl::code $this Zoom in]
446	}
447
448	set _image(download) [image create photo]
449
450	eval itk_initialize $args
451	Connect
452	}
453
454	# ----------------------------------------------------------------------
455	# DESTRUCTOR
456	# ----------------------------------------------------------------------
457	itcl::body Rappture::VtkStreamlinesViewer::destructor {} {
458	Disconnect
459	image delete $_image(plot)
460	image delete $_image(download)
461	catch { blt::arcball destroy $_arcball }
462	}
463
464	itcl::body Rappture::VtkStreamlinesViewer::DoResize {} {
465	if { $_width < 2 } {
466	set _width 500
467	}
468	if { $_height < 2 } {
469	set _height 500
470	}
471	set _start [clock clicks -milliseconds]
472	SendCmd "screen size $_width $_height"
473
474	set _legendPending 1
475	set _resizePending 0
476	}
477
478	itcl::body Rappture::VtkStreamlinesViewer::DoRotate {} {
479	SendCmd "camera orient [ViewToQuaternion]"
480	set _rotatePending 0
481	}
482
483	itcl::body Rappture::VtkStreamlinesViewer::DoReseed {} {
484	foreach dataset [CurrentDatasets -visible] {
485	foreach {dataobj comp} [split $dataset -] break
486	# This command works for either random or fmesh seeds
487	SendCmd "streamlines seed numpts $_numSeeds $dataset"
488	}
489	set _reseedPending 0
490	}
491
492	itcl::body Rappture::VtkStreamlinesViewer::EventuallyResize { w h } {
493	set _width $w
494	set _height $h
495	$_arcball resize $w $h
496	if { !$_resizePending } {
497	set _resizePending 1
498	$_dispatcher event -after 400 !resize
499	}
500	}
501
502	itcl::body Rappture::VtkStreamlinesViewer::EventuallyReseed { numPoints } {
503	set _numSeeds $numPoints
504	if { !$_reseedPending } {
505	set _reseedPending 1
506	$_dispatcher event -after 600 !reseed
507	}
508	}
509
510	set rotate_delay 100
511
512	itcl::body Rappture::VtkStreamlinesViewer::EventuallyRotate { q } {
513	QuaternionToView $q
514	if { !$_rotatePending } {
515	set _rotatePending 1
516	global rotate_delay
517	$_dispatcher event -after $rotate_delay !rotate
518	}
519	}
520
521	itcl::body Rappture::VtkStreamlinesViewer::EventuallySetCutplane { axis args } {
522	if { !$_cutplanePending } {
523	set _cutplanePending 1
524	$_dispatcher event -after 100 !${axis}cutplane
525	}
526	}
527
528	# ----------------------------------------------------------------------
529	# USAGE: add <dataobj> ?<settings>?
530	#
531	# Clients use this to add a data object to the plot. The optional
532	# <settings> are used to configure the plot. Allowed settings are
533	# -color, -brightness, -width, -linestyle, and -raise.
534	# ----------------------------------------------------------------------
535	itcl::body Rappture::VtkStreamlinesViewer::add {dataobj {settings ""}} {
536	array set params {
537	-color auto
538	-width 1
539	-linestyle solid
540	-brightness 0
541	-raise 0
542	-description ""
543	-param ""
544	-type ""
545	}
546	array set params $settings
547	set params(-description) ""
548	set params(-param) ""
549	array set params $settings
550
551	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
552	# can't handle -autocolors yet
553	set params(-color) black
554	}
555	set pos [lsearch -exact $_dlist $dataobj]
556	if {$pos < 0} {
557	lappend _dlist $dataobj
558	}
559	set _obj2ovride($dataobj-color) $params(-color)
560	set _obj2ovride($dataobj-width) $params(-width)
561	set _obj2ovride($dataobj-raise) $params(-raise)
562	$_dispatcher event -idle !rebuild
563	}
564
565
566	# ----------------------------------------------------------------------
567	# USAGE: delete ?<dataobj1> <dataobj2> ...?
568	#
569	# Clients use this to delete a dataobj from the plot. If no dataobjs
570	# are specified, then all dataobjs are deleted. No data objects are
571	# deleted. They are only removed from the display list.
572	#
573	# ----------------------------------------------------------------------
574	itcl::body Rappture::VtkStreamlinesViewer::delete {args} {
575	if { [llength $args] == 0} {
576	set args $_dlist
577	}
578	# Delete all specified dataobjs
579	set changed 0
580	foreach dataobj $args {
581	set pos [lsearch -exact $_dlist $dataobj]
582	if { $pos < 0 } {
583	continue; # Don't know anything about it.
584	}
585	# Remove it from the dataobj list.
586	set _dlist [lreplace $_dlist $pos $pos]
587	array unset _obj2ovride $dataobj-*
588	array unset _settings $dataobj-*
589	set changed 1
590	}
591	# If anything changed, then rebuild the plot
592	if { $changed } {
593	$_dispatcher event -idle !rebuild
594	}
595	}
596
597	# ----------------------------------------------------------------------
598	# USAGE: get ?-objects?
599	# USAGE: get ?-visible?
600	# USAGE: get ?-image view?
601	#
602	# Clients use this to query the list of objects being plotted, in
603	# order from bottom to top of this result. The optional "-image"
604	# flag can also request the internal images being shown.
605	# ----------------------------------------------------------------------
606	itcl::body Rappture::VtkStreamlinesViewer::get {args} {
607	if {[llength $args] == 0} {
608	set args "-objects"
609	}
610
611	set op [lindex $args 0]
612	switch -- $op {
613	"-objects" {
614	# put the dataobj list in order according to -raise options
615	set dlist {}
616	foreach dataobj $_dlist {
617	if { ![IsValidObject $dataobj] } {
618	continue
619	}
620	if {[info exists _obj2ovride($dataobj-raise)] &&
621	$_obj2ovride($dataobj-raise)} {
622	set dlist [linsert $dlist 0 $dataobj]
623	} else {
624	lappend dlist $dataobj
625	}
626	}
627	return $dlist
628	}
629	"-visible" {
630	set dlist {}
631	foreach dataobj $_dlist {
632	if { ![IsValidObject $dataobj] } {
633	continue
634	}
635	if { ![info exists _obj2ovride($dataobj-raise)] } {
636	# No setting indicates that the object isn't visible.
637	continue
638	}
639	# Otherwise use the -raise parameter to put the object to
640	# the front of the list.
641	if { $_obj2ovride($dataobj-raise) } {
642	set dlist [linsert $dlist 0 $dataobj]
643	} else {
644	lappend dlist $dataobj
645	}
646	}
647	return $dlist
648	}
649	-image {
650	if {[llength $args] != 2} {
651	error "wrong # args: should be \"get -image view\""
652	}
653	switch -- [lindex $args end] {
654	view {
655	return $_image(plot)
656	}
657	default {
658	error "bad image name \"[lindex $args end]\": should be view"
659	}
660	}
661	}
662	default {
663	error "bad option \"$op\": should be -objects or -image"
664	}
665	}
666	}
667
668	# ----------------------------------------------------------------------
669	# USAGE: scale ?<data1> <data2> ...?
670	#
671	# Sets the default limits for the overall plot according to the
672	# limits of the data for all of the given <data> objects. This
673	# accounts for all objects--even those not showing on the screen.
674	# Because of this, the limits are appropriate for all objects as
675	# the user scans through data in the ResultSet viewer.
676	# ----------------------------------------------------------------------
677	itcl::body Rappture::VtkStreamlinesViewer::scale {args} {
678	foreach dataobj $args {
679	foreach axis { x y z } {
680	set lim [$dataobj limits $axis]
681	if { ![info exists _limits($axis)] } {
682	set _limits($axis) $lim
683	continue
684	}
685	foreach {min max} $lim break
686	foreach {amin amax} $_limits($axis) break
687	if { $amin > $min } {
688	set amin $min
689	}
690	if { $amax < $max } {
691	set amax $max
692	}
693	set _limits($axis) [list $amin $amax]
694	}
695	foreach { fname lim } [$dataobj fieldlimits] {
696	if { ![info exists _limits($fname)] } {
697	set _limits($fname) $lim
698	continue
699	}
700	foreach {min max} $lim break
701	foreach {fmin fmax} $_limits($fname) break
702	if { $fmin > $min } {
703	set fmin $min
704	}
705	if { $fmax < $max } {
706	set fmax $max
707	}
708	set _limits($fname) [list $fmin $fmax]
709	}
710	}
711	}
712
713	# ----------------------------------------------------------------------
714	# USAGE: download coming
715	# USAGE: download controls <downloadCommand>
716	# USAGE: download now
717	#
718	# Clients use this method to create a downloadable representation
719	# of the plot. Returns a list of the form {ext string}, where
720	# "ext" is the file extension (indicating the type of data) and
721	# "string" is the data itself.
722	# ----------------------------------------------------------------------
723	itcl::body Rappture::VtkStreamlinesViewer::download {option args} {
724	switch $option {
725	coming {
726	if {[catch {
727	blt::winop snap $itk_component(plotarea) $_image(download)
728	}]} {
729	$_image(download) configure -width 1 -height 1
730	$_image(download) put #000000
731	}
732	}
733	controls {
734	set popup .vtkviewerdownload
735	if { ![winfo exists .vtkviewerdownload] } {
736	set inner [BuildDownloadPopup $popup [lindex $args 0]]
737	} else {
738	set inner [$popup component inner]
739	}
740	set _downloadPopup(image_controls) $inner.image_frame
741	set num [llength [get]]
742	set num [expr {($num == 1) ? "1 result" : "$num results"}]
743	set word [Rappture::filexfer::label downloadWord]
744	$inner.summary configure -text "$word $num in the following format:"
745	update idletasks ;# Fix initial sizes
746	return $popup
747	}
748	now {
749	set popup .vtkviewerdownload
750	if {[winfo exists .vtkviewerdownload]} {
751	$popup deactivate
752	}
753	switch -- $_downloadPopup(format) {
754	"image" {
755	return [$this GetImage [lindex $args 0]]
756	}
757	"vtk" {
758	return [$this GetVtkData [lindex $args 0]]
759	}
760	}
761	return ""
762	}
763	default {
764	error "bad option \"$option\": should be coming, controls, now"
765	}
766	}
767	}
768
769	# ----------------------------------------------------------------------
770	# USAGE: Connect ?<host:port>,<host:port>...?
771	#
772	# Clients use this method to establish a connection to a new
773	# server, or to reestablish a connection to the previous server.
774	# Any existing connection is automatically closed.
775	# ----------------------------------------------------------------------
776	itcl::body Rappture::VtkStreamlinesViewer::Connect {} {
777	set _hosts [GetServerList "vtkvis"]
778	if { "" == $_hosts } {
779	return 0
780	}
781	set _reset 1
782	set result [VisViewer::Connect $_hosts]
783	if { $result } {
784	if { $_reportClientInfo } {
785	# Tell the server the viewer, hub, user and session.
786	# Do this immediately on connect before buffering any commands
787	global env
788
789	set info {}
790	set user "???"
791	if { [info exists env(USER)] } {
792	set user $env(USER)
793	}
794	set session "???"
795	if { [info exists env(SESSION)] } {
796	set session $env(SESSION)
797	}
798	lappend info "version" "$Rappture::version"
799	lappend info "build" "$Rappture::build"
800	lappend info "svnurl" "$Rappture::svnurl"
801	lappend info "installdir" "$Rappture::installdir"
802	lappend info "hub" [exec hostname]
803	lappend info "client" "vtkstreamlinesviewer"
804	lappend info "user" $user
805	lappend info "session" $session
806	SendCmd "clientinfo [list $info]"
807	}
808
809	set w [winfo width $itk_component(view)]
810	set h [winfo height $itk_component(view)]
811	EventuallyResize $w $h
812	}
813	return $result
814	}
815
816	#
817	# isconnected --
818	#
819	# Indicates if we are currently connected to the visualization server.
820	#
821	itcl::body Rappture::VtkStreamlinesViewer::isconnected {} {
822	return [VisViewer::IsConnected]
823	}
824
825	#
826	# disconnect --
827	#
828	itcl::body Rappture::VtkStreamlinesViewer::disconnect {} {
829	Disconnect
830	set _reset 1
831	}
832
833	#
834	# Disconnect --
835	#
836	# Clients use this method to disconnect from the current rendering
837	# server.
838	#
839	itcl::body Rappture::VtkStreamlinesViewer::Disconnect {} {
840	VisViewer::Disconnect
841
842	$_dispatcher cancel !rebuild
843	$_dispatcher cancel !resize
844	$_dispatcher cancel !reseed
845	$_dispatcher cancel !rotate
846	$_dispatcher cancel !xcutplane
847	$_dispatcher cancel !ycutplane
848	$_dispatcher cancel !zcutplane
849	$_dispatcher cancel !legend
850	# disconnected -- no more data sitting on server
851	array unset _datasets
852	array unset _colormaps
853	array unset _seeds
854	array unset _dataset2style
855	}
856
857	# ----------------------------------------------------------------------
858	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
859	#
860	# Invoked automatically whenever the "image" command comes in from
861	# the rendering server. Indicates that binary image data with the
862	# specified <size> will follow.
863	# ----------------------------------------------------------------------
864	itcl::body Rappture::VtkStreamlinesViewer::ReceiveImage { args } {
865	array set info {
866	-token "???"
867	-bytes 0
868	-type image
869	}
870	array set info $args
871	set bytes [ReceiveBytes $info(-bytes)]
872	if { $info(-type) == "image" } {
873	if 0 {
874	set f [open "last.ppm" "w"]
875	fconfigure $f -encoding binary
876	puts -nonewline $f $bytes
877	close $f
878	}
879	$_image(plot) configure -data $bytes
880	set time [clock seconds]
881	set date [clock format $time]
882	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
883	if { $_start > 0 } {
884	set finish [clock clicks -milliseconds]
885	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
886	set _start 0
887	}
888	} elseif { $info(type) == "print" } {
889	set tag $this-print-$info(-token)
890	set _hardcopy($tag) $bytes
891	}
892	if { $_legendPending } {
893	RequestLegend
894	}
895	}
896
897	#
898	# ReceiveDataset --
899	#
900	itcl::body Rappture::VtkStreamlinesViewer::ReceiveDataset { args } {
901	if { ![isconnected] } {
902	return
903	}
904	set option [lindex $args 0]
905	switch -- $option {
906	"scalar" {
907	set option [lindex $args 1]
908	switch -- $option {
909	"world" {
910	foreach { x y z value tag } [lrange $args 2 end] break
911	}
912	"pixel" {
913	foreach { x y value tag } [lrange $args 2 end] break
914	}
915	}
916	}
917	"vector" {
918	set option [lindex $args 1]
919	switch -- $option {
920	"world" {
921	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
922	}
923	"pixel" {
924	foreach { x y vx vy vz tag } [lrange $args 2 end] break
925	}
926	}
927	}
928	"names" {
929	foreach { name } [lindex $args 1] {
930	#puts stderr "Dataset: $name"
931	}
932	}
933	default {
934	error "unknown dataset option \"$option\" from server"
935	}
936	}
937	}
938
939	# ----------------------------------------------------------------------
940	# USAGE: Rebuild
941	#
942	# Called automatically whenever something changes that affects the
943	# data in the widget. Clears any existing data and rebuilds the
944	# widget to display new data.
945	# ----------------------------------------------------------------------
946	itcl::body Rappture::VtkStreamlinesViewer::Rebuild {} {
947	set w [winfo width $itk_component(view)]
948	set h [winfo height $itk_component(view)]
949	if { $w < 2 \|\| $h < 2 } {
950	update
951	$_dispatcher event -idle !rebuild
952	return
953	}
954
955	# Turn on buffering of commands to the server. We don't want to
956	# be preempted by a server disconnect/reconnect (which automatically
957	# generates a new call to Rebuild).
958	StartBufferingCommands
959	set _legendPending 1
960
961	set _first ""
962	if { $_reset } {
963	set _width $w
964	set _height $h
965	$_arcball resize $w $h
966	DoResize
967	InitSettings -xgrid -ygrid -zgrid -axismode \
968	-axesvisible -axislabelsvisible -axisminorticks
969	# This "imgflush" is to force an image returned before vtkvis starts
970	# reading a (big) dataset. This will display an empty plot with axes
971	# at the correct image size.
972	SendCmd "imgflush"
973	}
974
975	set _first ""
976	SendCmd "dataset visible 0"
977	foreach dataobj [get -objects] {
978	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
979	set _first $dataobj
980	}
981	foreach comp [$dataobj components] {
982	set tag $dataobj-$comp
983	if { ![info exists _datasets($tag)] } {
984	set bytes [$dataobj vtkdata $comp]
985	set length [string length $bytes]
986	if 0 {
987	set f [open /tmp/vtkstreamlines.vtk "w"]
988	fconfigure $f -translation binary -encoding binary
989	puts -nonewline $f $bytes
990	close $f
991	}
992	if { $_reportClientInfo } {
993	set info {}
994	lappend info "tool_id" [$dataobj hints toolid]
995	lappend info "tool_name" [$dataobj hints toolname]
996	lappend info "tool_title" [$dataobj hints tooltitle]
997	lappend info "tool_command" [$dataobj hints toolcommand]
998	lappend info "tool_revision" [$dataobj hints toolrevision]
999	lappend info "dataset_label" [$dataobj hints label]
1000	lappend info "dataset_size" $length
1001	lappend info "dataset_tag" $tag
1002	SendCmd "clientinfo [list $info]"
1003	}
1004	SendCmd "dataset add $tag data follows $length"
1005	SendData $bytes
1006	set _datasets($tag) 1
1007	SetObjectStyle $dataobj $comp
1008	}
1009	if { [info exists _obj2ovride($dataobj-raise)] } {
1010	SendCmd "dataset visible 1 $tag"
1011	}
1012	}
1013	}
1014	if {"" != $_first} {
1015	set location [$_first hints camera]
1016	if { $location != "" } {
1017	array set view $location
1018	}
1019	foreach axis { x y z } {
1020	set label [$_first hints ${axis}label]
1021	if { $label != "" } {
1022	SendCmd [list axis name $axis $label]
1023	}
1024	set units [$_first hints ${axis}units]
1025	if { $units != "" } {
1026	SendCmd [list axis units $axis $units]
1027	}
1028	}
1029	$itk_component(field) choices delete 0 end
1030	$itk_component(fieldmenu) delete 0 end
1031	array unset _fields
1032	set _curFldName ""
1033	foreach cname [$_first components] {
1034	foreach fname [$_first fieldnames $cname] {
1035	if { [info exists _fields($fname)] } {
1036	continue
1037	}
1038	foreach { label units components } \
1039	[$_first fieldinfo $fname] break
1040	$itk_component(field) choices insert end "$fname" "$label"
1041	$itk_component(fieldmenu) add radiobutton -label "$label" \
1042	-value $label -variable [itcl::scope _curFldLabel] \
1043	-selectcolor red \
1044	-activebackground $itk_option(-plotbackground) \
1045	-activeforeground $itk_option(-plotforeground) \
1046	-font "Arial 8" \
1047	-command [itcl::code $this Combo invoke]
1048	set _fields($fname) [list $label $units $components]
1049	if { $_curFldName == "" } {
1050	set _curFldName $fname
1051	set _curFldLabel $label
1052	}
1053	}
1054	}
1055	$itk_component(field) value $_curFldLabel
1056	}
1057
1058	if { $_reset } {
1059	InitSettings -streamlinesseedsvisible -streamlinesopacity \
1060	-streamlinesvisible -streamlinescolormap \
1061	-streamlineslighting \
1062	-streamlinescolormap -field \
1063	-volumevisible -volumeedges -volumelighting -volumeopacity \
1064	-volumewireframe \
1065	-cutplanevisible \
1066	-cutplanexposition -cutplaneyposition -cutplanezposition \
1067	-cutplanexvisible -cutplaneyvisible -cutplanezvisible
1068
1069	# Reset the camera and other view parameters
1070	$_arcball quaternion [ViewToQuaternion]
1071	if {$_view(-ortho)} {
1072	SendCmd "camera mode ortho"
1073	} else {
1074	SendCmd "camera mode persp"
1075	}
1076	DoRotate
1077	PanCamera
1078	Zoom reset
1079	SendCmd "camera reset"
1080	set _reset 0
1081	}
1082	# Actually write the commands to the server socket. If it fails, we don't
1083	# care. We're finished here.
1084	blt::busy hold $itk_component(hull)
1085	StopBufferingCommands
1086	blt::busy release $itk_component(hull)
1087	}
1088
1089	# ----------------------------------------------------------------------
1090	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1091	#
1092	# Returns a list of server IDs for the current datasets being displayed. This
1093	# is normally a single ID, but it might be a list of IDs if the current data
1094	# object has multiple components.
1095	# ----------------------------------------------------------------------
1096	itcl::body Rappture::VtkStreamlinesViewer::CurrentDatasets {args} {
1097	set flag [lindex $args 0]
1098	switch -- $flag {
1099	"-all" {
1100	if { [llength $args] > 1 } {
1101	error "CurrentDatasets: can't specify dataobj after \"-all\""
1102	}
1103	set dlist [get -objects]
1104	}
1105	"-visible" {
1106	if { [llength $args] > 1 } {
1107	set dlist {}
1108	set args [lrange $args 1 end]
1109	foreach dataobj $args {
1110	if { [info exists _obj2ovride($dataobj-raise)] } {
1111	lappend dlist $dataobj
1112	}
1113	}
1114	} else {
1115	set dlist [get -visible]
1116	}
1117	}
1118	default {
1119	set dlist $args
1120	}
1121	}
1122	set rlist ""
1123	foreach dataobj $dlist {
1124	foreach comp [$dataobj components] {
1125	set tag $dataobj-$comp
1126	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1127	lappend rlist $tag
1128	}
1129	}
1130	}
1131	return $rlist
1132	}
1133
1134	# ----------------------------------------------------------------------
1135	# USAGE: Zoom in
1136	# USAGE: Zoom out
1137	# USAGE: Zoom reset
1138	#
1139	# Called automatically when the user clicks on one of the zoom
1140	# controls for this widget. Changes the zoom for the current view.
1141	# ----------------------------------------------------------------------
1142	itcl::body Rappture::VtkStreamlinesViewer::Zoom {option} {
1143	switch -- $option {
1144	"in" {
1145	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1146	SendCmd "camera zoom $_view(-zoom)"
1147	}
1148	"out" {
1149	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1150	SendCmd "camera zoom $_view(-zoom)"
1151	}
1152	"reset" {
1153	array set _view {
1154	-qw 0.853553
1155	-qx -0.353553
1156	-qy 0.353553
1157	-qz 0.146447
1158	-xpan 0
1159	-ypan 0
1160	-zoom 1.0
1161	}
1162	if { $_first != "" } {
1163	set location [$_first hints camera]
1164	if { $location != "" } {
1165	array set _view $location
1166	}
1167	}
1168	$_arcball quaternion [ViewToQuaternion]
1169	DoRotate
1170	SendCmd "camera reset"
1171	}
1172	}
1173	}
1174
1175	itcl::body Rappture::VtkStreamlinesViewer::PanCamera {} {
1176	set x $_view(-xpan)
1177	set y $_view(-ypan)
1178	SendCmd "camera pan $x $y"
1179	}
1180
1181	# ----------------------------------------------------------------------
1182	# USAGE: Rotate click <x> <y>
1183	# USAGE: Rotate drag <x> <y>
1184	# USAGE: Rotate release <x> <y>
1185	#
1186	# Called automatically when the user clicks/drags/releases in the
1187	# plot area. Moves the plot according to the user's actions.
1188	# ----------------------------------------------------------------------
1189	itcl::body Rappture::VtkStreamlinesViewer::Rotate {option x y} {
1190	switch -- $option {
1191	"click" {
1192	$itk_component(view) configure -cursor fleur
1193	set _click(x) $x
1194	set _click(y) $y
1195	}
1196	"drag" {
1197	if {[array size _click] == 0} {
1198	Rotate click $x $y
1199	} else {
1200	set w [winfo width $itk_component(view)]
1201	set h [winfo height $itk_component(view)]
1202	if {$w <= 0 \|\| $h <= 0} {
1203	return
1204	}
1205
1206	if {[catch {
1207	# this fails sometimes for no apparent reason
1208	set dx [expr {double($x-$_click(x))/$w}]
1209	set dy [expr {double($y-$_click(y))/$h}]
1210	}]} {
1211	return
1212	}
1213	if { $dx == 0 && $dy == 0 } {
1214	return
1215	}
1216	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1217	EventuallyRotate $q
1218	set _click(x) $x
1219	set _click(y) $y
1220	}
1221	}
1222	"release" {
1223	Rotate drag $x $y
1224	$itk_component(view) configure -cursor ""
1225	catch {unset _click}
1226	}
1227	default {
1228	error "bad option \"$option\": should be click, drag, release"
1229	}
1230	}
1231	}
1232
1233	itcl::body Rappture::VtkStreamlinesViewer::Pick {x y} {
1234	foreach tag [CurrentDatasets -visible] {
1235	SendCmd "dataset getscalar pixel $x $y $tag"
1236	}
1237	}
1238
1239	# ----------------------------------------------------------------------
1240	# USAGE: $this Pan click x y
1241	# $this Pan drag x y
1242	# $this Pan release x y
1243	#
1244	# Called automatically when the user clicks on one of the zoom
1245	# controls for this widget. Changes the zoom for the current view.
1246	# ----------------------------------------------------------------------
1247	itcl::body Rappture::VtkStreamlinesViewer::Pan {option x y} {
1248	switch -- $option {
1249	"set" {
1250	set w [winfo width $itk_component(view)]
1251	set h [winfo height $itk_component(view)]
1252	set x [expr $x / double($w)]
1253	set y [expr $y / double($h)]
1254	set _view(-xpan) [expr $_view(-xpan) + $x]
1255	set _view(-ypan) [expr $_view(-ypan) + $y]
1256	PanCamera
1257	return
1258	}
1259	"click" {
1260	set _click(x) $x
1261	set _click(y) $y
1262	$itk_component(view) configure -cursor hand1
1263	}
1264	"drag" {
1265	if { ![info exists _click(x)] } {
1266	set _click(x) $x
1267	}
1268	if { ![info exists _click(y)] } {
1269	set _click(y) $y
1270	}
1271	set w [winfo width $itk_component(view)]
1272	set h [winfo height $itk_component(view)]
1273	set dx [expr ($_click(x) - $x)/double($w)]
1274	set dy [expr ($_click(y) - $y)/double($h)]
1275	set _click(x) $x
1276	set _click(y) $y
1277	set _view(-xpan) [expr $_view(-xpan) - $dx]
1278	set _view(-ypan) [expr $_view(-ypan) - $dy]
1279	PanCamera
1280	}
1281	"release" {
1282	Pan drag $x $y
1283	$itk_component(view) configure -cursor ""
1284	}
1285	default {
1286	error "unknown option \"$option\": should set, click, drag, or release"
1287	}
1288	}
1289	}
1290
1291	# ----------------------------------------------------------------------
1292	# USAGE: InitSettings <what> ?<value>?
1293	#
1294	# Used internally to update rendering settings whenever parameters
1295	# change in the popup settings panel. Sends the new settings off
1296	# to the back end.
1297	# ----------------------------------------------------------------------
1298	itcl::body Rappture::VtkStreamlinesViewer::InitSettings { args } {
1299	foreach spec $args {
1300	if { [info exists _settings($_first${spec})] } {
1301	# Reset global setting with dataobj specific setting
1302	set _settings($spec) $_settings($_first${spec})
1303	}
1304	AdjustSetting $spec
1305	}
1306	}
1307
1308	#
1309	# AdjustSetting --
1310	#
1311	# Changes/updates a specific setting in the widget. There are
1312	# usually user-setable option. Commands are sent to the render
1313	# server.
1314	#
1315	itcl::body Rappture::VtkStreamlinesViewer::AdjustSetting {what {value ""}} {
1316	if { ![isconnected] } {
1317	return
1318	}
1319	switch -- $what {
1320	"-axesvisible" {
1321	set bool $_settings($what)
1322	SendCmd "axis visible all $bool"
1323	}
1324	"-axislabelsvisible" {
1325	set bool $_settings($what)
1326	SendCmd "axis labels all $bool"
1327	}
1328	"-axisminorticks" {
1329	set bool $_settings($what)
1330	SendCmd "axis minticks all $bool"
1331	}
1332	"-axismode" {
1333	set mode [$itk_component(axismode) value]
1334	set mode [$itk_component(axismode) translate $mode]
1335	set _settings($what) $mode
1336	SendCmd "axis flymode $mode"
1337	}
1338	"-cutplaneedges" {
1339	set bool $_settings($what)
1340	SendCmd "cutplane edges $bool"
1341	}
1342	"-cutplanevisible" {
1343	set bool $_settings($what)
1344	SendCmd "cutplane visible $bool"
1345	}
1346	"-cutplanewireframe" {
1347	set bool $_settings($what)
1348	SendCmd "cutplane wireframe $bool"
1349	}
1350	"-cutplanelighting" {
1351	set bool $_settings($what)
1352	SendCmd "cutplane lighting $bool"
1353	}
1354	"-cutplaneopacity" {
1355	set val $_settings($what)
1356	set sval [expr { 0.01 * double($val) }]
1357	SendCmd "cutplane opacity $sval"
1358	}
1359	"-cutplanexvisible" - "-cutplaneyvisible" - "-cutplanezvisible" {
1360	set axis [string range $what 9 9]
1361	set bool $_settings($what)
1362	if { $bool } {
1363	$itk_component(${axis}CutScale) configure -state normal \
1364	-troughcolor white
1365	} else {
1366	$itk_component(${axis}CutScale) configure -state disabled \
1367	-troughcolor grey82
1368	}
1369	SendCmd "cutplane axis $axis $bool"
1370	}
1371	"-cutplanexposition" - "-cutplaneyposition" - "-cutplanezposition" {
1372	set axis [string range $what 9 9]
1373	set pos [expr $_settings($what) * 0.01]
1374	SendCmd "cutplane slice ${axis} ${pos}"
1375	set _cutplanePending 0
1376	}
1377	"-field" {
1378	set label [$itk_component(field) value]
1379	set fname [$itk_component(field) translate $label]
1380	set _settings($what) $fname
1381	if { [info exists _fields($fname)] } {
1382	foreach { label units components } $_fields($fname) break
1383	if { $components > 1 } {
1384	set _colorMode vmag
1385	} else {
1386	set _colorMode scalar
1387	}
1388	set _curFldName $fname
1389	set _curFldLabel $label
1390	} else {
1391	puts stderr "unknown field \"$fname\""
1392	return
1393	}
1394	# Get the new limits because the field changed.
1395	if { ![info exists _limits($_curFldName)] } {
1396	SendCmd "dataset maprange all"
1397	} else {
1398	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1399	}
1400	SendCmd "streamlines colormode $_colorMode $_curFldName"
1401	SendCmd "cutplane colormode $_colorMode $_curFldName"
1402	DrawLegend
1403	}
1404	"-streamlinesseedsvisible" {
1405	set bool $_settings($what)
1406	SendCmd "streamlines seed visible $bool"
1407	}
1408	"-streamlinesnumseeds" {
1409	set density $_settings($what)
1410	EventuallyReseed $density
1411	}
1412	"-streamlinesvisible" {
1413	set bool $_settings($what)
1414	SendCmd "streamlines visible $bool"
1415	if { $bool } {
1416	Rappture::Tooltip::for $itk_component(streamlines) \
1417	"Hide the streamlines"
1418	} else {
1419	Rappture::Tooltip::for $itk_component(streamlines) \
1420	"Show the streamlines"
1421	}
1422	}
1423	"-streamlinesmode" {
1424	set mode [$itk_component(streammode) value]
1425	set _settings($what) $mode
1426	switch -- $mode {
1427	"lines" {
1428	SendCmd "streamlines lines"
1429	}
1430	"ribbons" {
1431	SendCmd "streamlines ribbons 3 0"
1432	}
1433	"tubes" {
1434	SendCmd "streamlines tubes 5 3"
1435	}
1436	}
1437	}
1438	"-streamlinescolormap" {
1439	set colormap [$itk_component(colormap) value]
1440	set _settings($what) $colormap
1441	foreach dataset [CurrentDatasets -visible $_first] {
1442	foreach {dataobj comp} [split $dataset -] break
1443	ChangeColormap $dataobj $comp $colormap
1444	}
1445	set _legendPending 1
1446	}
1447	"-streamlinesopacity" {
1448	set val $_settings($what)
1449	set sval [expr { 0.01 * double($val) }]
1450	SendCmd "streamlines opacity $sval"
1451	}
1452	"-streamlinesscale" {
1453	set val $_settings($what)
1454	set sval [expr { 0.01 * double($val) }]
1455	SendCmd "streamlines scale $sval $sval $sval"
1456	}
1457	"-streamlineslighting" {
1458	set bool $_settings($what)
1459	SendCmd "streamlines lighting $bool"
1460	}
1461	"-volumeopacity" {
1462	set val $_settings($what)
1463	set sval [expr { 0.01 * double($val) }]
1464	SendCmd "polydata opacity $sval"
1465	}
1466	"-volumewireframe" {
1467	set bool $_settings($what)
1468	SendCmd "polydata wireframe $bool"
1469	}
1470	"-volumevisible" {
1471	set bool $_settings($what)
1472	SendCmd "polydata visible $bool"
1473	if { $bool } {
1474	Rappture::Tooltip::for $itk_component(volume) \
1475	"Hide the volume"
1476	} else {
1477	Rappture::Tooltip::for $itk_component(volume) \
1478	"Show the volume"
1479	}
1480	}
1481	"-volumelighting" {
1482	set bool $_settings($what)
1483	SendCmd "polydata lighting $bool"
1484	}
1485	"-volumeedges" {
1486	set bool $_settings($what)
1487	SendCmd "polydata edges $bool"
1488	}
1489	"-xgrid" - "-ygrid" - "-zgrid" {
1490	set axis [string range $what 1 1]
1491	set bool $_settings($what)
1492	SendCmd "axis grid $axis $bool"
1493	}
1494	default {
1495	error "don't know how to fix $what"
1496	}
1497	}
1498	}
1499
1500	#
1501	# RequestLegend --
1502	#
1503	# Request a new legend from the server. The size of the legend
1504	# is determined from the height of the canvas. It will be rotated
1505	# to be vertical when drawn.
1506	#
1507	itcl::body Rappture::VtkStreamlinesViewer::RequestLegend {} {
1508	set font "Arial 8"
1509	set lineht [font metrics $font -linespace]
1510	set w 12
1511	set h [expr {$_height - 3 * ($lineht + 2)}]
1512	if { $h < 1 } {
1513	return
1514	}
1515	# Set the legend on the first streamlines dataset.
1516	foreach dataset [CurrentDatasets -visible $_first] {
1517	foreach {dataobj comp} [split $dataset -] break
1518	if { [info exists _dataset2style($dataset)] } {
1519	SendCmd \
1520	"legend $_dataset2style($dataset) $_colorMode $_curFldName {} $w $h 0"
1521	break;
1522	}
1523	}
1524	}
1525
1526	#
1527	# ChangeColormap --
1528	#
1529	itcl::body Rappture::VtkStreamlinesViewer::ChangeColormap {dataobj comp color} {
1530	set tag $dataobj-$comp
1531	if { ![info exist _style($tag)] } {
1532	error "no initial colormap"
1533	}
1534	array set style $_style($tag)
1535	set style(-color) $color
1536	set _style($tag) [array get style]
1537	SetColormap $dataobj $comp
1538	}
1539
1540	#
1541	# SetColormap --
1542	#
1543	itcl::body Rappture::VtkStreamlinesViewer::SetColormap { dataobj comp } {
1544	array set style {
1545	-color BCGYR
1546	-levels 6
1547	-opacity 1.0
1548	}
1549	set tag $dataobj-$comp
1550	if { ![info exists _initialStyle($tag)] } {
1551	# Save the initial component style.
1552	set _initialStyle($tag) [$dataobj style $comp]
1553	}
1554
1555	# Override defaults with initial style defined in xml.
1556	array set style $_initialStyle($tag)
1557
1558	if { ![info exists _style($tag)] } {
1559	set _style($tag) [array get style]
1560	}
1561	# Override initial style with current style.
1562	array set style $_style($tag)
1563
1564	set name "$style(-color):$style(-levels):$style(-opacity)"
1565	if { ![info exists _colormaps($name)] } {
1566	BuildColormap $name [array get style]
1567	set _colormaps($name) 1
1568	}
1569	if { ![info exists _dataset2style($tag)] \|\|
1570	$_dataset2style($tag) != $name } {
1571	SendCmd "streamlines colormap $name $tag"
1572	SendCmd "cutplane colormap $name $tag"
1573	set _dataset2style($tag) $name
1574	}
1575	}
1576
1577	#
1578	# BuildColormap --
1579	#
1580	itcl::body Rappture::VtkStreamlinesViewer::BuildColormap { name styles } {
1581	array set style $styles
1582	set cmap [ColorsToColormap $style(-color)]
1583	if { [llength $cmap] == 0 } {
1584	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1585	}
1586	if { ![info exists _settings(-volumeopacity)] } {
1587	set _settings(-volumeopacity) $style(-opacity)
1588	}
1589	set max $_settings(-volumeopacity)
1590
1591	set amap "0.0 1.0 1.0 1.0"
1592	SendCmd "colormap add $name { $cmap } { $amap }"
1593	}
1594
1595	# ----------------------------------------------------------------------
1596	# CONFIGURATION OPTION: -plotbackground
1597	# ----------------------------------------------------------------------
1598	itcl::configbody Rappture::VtkStreamlinesViewer::plotbackground {
1599	if { [isconnected] } {
1600	set rgb [Color2RGB $itk_option(-plotbackground)]
1601	SendCmd "screen bgcolor $rgb"
1602	}
1603	}
1604
1605	# ----------------------------------------------------------------------
1606	# CONFIGURATION OPTION: -plotforeground
1607	# ----------------------------------------------------------------------
1608	itcl::configbody Rappture::VtkStreamlinesViewer::plotforeground {
1609	if { [isconnected] } {
1610	set rgb [Color2RGB $itk_option(-plotforeground)]
1611	SendCmd "axis color all $rgb"
1612	SendCmd "outline color $rgb"
1613	SendCmd "cutplane color $rgb"
1614	}
1615	}
1616
1617	itcl::body Rappture::VtkStreamlinesViewer::BuildVolumeTab {} {
1618
1619	set fg [option get $itk_component(hull) font Font]
1620	#set bfg [option get $itk_component(hull) boldFont Font]
1621
1622	set inner [$itk_component(main) insert end \
1623	-title "Volume Settings" \
1624	-icon [Rappture::icon volume-on]]
1625	$inner configure -borderwidth 4
1626
1627	checkbutton $inner.volume \
1628	-text "Show Volume" \
1629	-variable [itcl::scope _settings(-volumevisible)] \
1630	-command [itcl::code $this AdjustSetting -volumevisible] \
1631	-font "Arial 9"
1632
1633	checkbutton $inner.wireframe \
1634	-text "Show Wireframe" \
1635	-variable [itcl::scope _settings(-volumewireframe)] \
1636	-command [itcl::code $this AdjustSetting -volumewireframe] \
1637	-font "Arial 9"
1638
1639	checkbutton $inner.lighting \
1640	-text "Enable Lighting" \
1641	-variable [itcl::scope _settings(-volumelighting)] \
1642	-command [itcl::code $this AdjustSetting -volumelighting] \
1643	-font "Arial 9"
1644
1645	checkbutton $inner.edges \
1646	-text "Show Edges" \
1647	-variable [itcl::scope _settings(-volumeedges)] \
1648	-command [itcl::code $this AdjustSetting -volumeedges] \
1649	-font "Arial 9"
1650
1651	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1652	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1653	-variable [itcl::scope _settings(-volumeopacity)] \
1654	-width 10 \
1655	-showvalue off \
1656	-command [itcl::code $this AdjustSetting -volumeopacity]
1657
1658	blt::table $inner \
1659	0,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1660	1,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1661	2,0 $inner.edges -anchor w -pady 2 -cspan 3 \
1662	3,0 $inner.opacity_l -anchor w -pady 2 \
1663	3,1 $inner.opacity -fill x -pady 2
1664
1665	blt::table configure $inner r* c* -resize none
1666	blt::table configure $inner r4 c1 -resize expand
1667	}
1668
1669	itcl::body Rappture::VtkStreamlinesViewer::BuildStreamsTab {} {
1670
1671	set fg [option get $itk_component(hull) font Font]
1672	#set bfg [option get $itk_component(hull) boldFont Font]
1673
1674	set inner [$itk_component(main) insert end \
1675	-title "Streams Settings" \
1676	-icon [Rappture::icon streamlines-on]]
1677	$inner configure -borderwidth 4
1678
1679	checkbutton $inner.streamlines \
1680	-text "Show Streamlines" \
1681	-variable [itcl::scope _settings(-streamlinesvisible)] \
1682	-command [itcl::code $this AdjustSetting -streamlinesvisible] \
1683	-font "Arial 9"
1684
1685	checkbutton $inner.lighting \
1686	-text "Enable Lighting" \
1687	-variable [itcl::scope _settings(-streamlineslighting)] \
1688	-command [itcl::code $this AdjustSetting -streamlineslighting] \
1689	-font "Arial 9"
1690
1691	checkbutton $inner.seeds \
1692	-text "Show Seeds" \
1693	-variable [itcl::scope _settings(-streamlinesseedsvisible)] \
1694	-command [itcl::code $this AdjustSetting -streamlinesseedsvisible] \
1695	-font "Arial 9"
1696
1697	label $inner.mode_l -text "Mode" -font "Arial 9"
1698	itk_component add streammode {
1699	Rappture::Combobox $inner.mode -width 10 -editable no
1700	}
1701	$inner.mode choices insert end \
1702	"lines" "lines" \
1703	"ribbons" "ribbons" \
1704	"tubes" "tubes"
1705	$itk_component(streammode) value $_settings(-streamlinesmode)
1706	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -streamlinesmode]
1707
1708	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1709	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1710	-variable [itcl::scope _settings(-streamlinesopacity)] \
1711	-width 10 \
1712	-showvalue off \
1713	-command [itcl::code $this AdjustSetting -streamlinesopacity]
1714
1715	label $inner.density_l -text "No. Seeds" -font "Arial 9"
1716	::scale $inner.density -from 1 -to 1000 -orient horizontal \
1717	-variable [itcl::scope _settings(-streamlinesnumseeds)] \
1718	-width 10 \
1719	-showvalue on \
1720	-command [itcl::code $this AdjustSetting -streamlinesnumseeds]
1721
1722	label $inner.scale_l -text "Scale" -font "Arial 9"
1723	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1724	-variable [itcl::scope _settings(-streamlinesscale)] \
1725	-width 10 \
1726	-showvalue off \
1727	-command [itcl::code $this AdjustSetting -streamlinesscale]
1728
1729	label $inner.field_l -text "Color by" -font "Arial 9"
1730	itk_component add field {
1731	Rappture::Combobox $inner.field -width 10 -editable no
1732	}
1733	bind $inner.field <<Value>> \
1734	[itcl::code $this AdjustSetting -field]
1735
1736	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1737	itk_component add colormap {
1738	Rappture::Combobox $inner.colormap -width 10 -editable no
1739	}
1740	$inner.colormap choices insert end [GetColormapList]
1741
1742	$itk_component(colormap) value "BCGYR"
1743	bind $inner.colormap <<Value>> \
1744	[itcl::code $this AdjustSetting -streamlinescolormap]
1745
1746	blt::table $inner \
1747	0,0 $inner.field_l -anchor w -pady 2 \
1748	0,1 $inner.field -fill x -pady 2 \
1749	1,0 $inner.colormap_l -anchor w -pady 2 \
1750	1,1 $inner.colormap -fill x -pady 2 \
1751	2,0 $inner.mode_l -anchor w -pady 2 \
1752	2,1 $inner.mode -fill x -pady 2 \
1753	3,0 $inner.opacity_l -anchor w -pady 2 \
1754	3,1 $inner.opacity -fill x -pady 2 \
1755	5,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1756	6,0 $inner.seeds -anchor w -pady 2 -cspan 2 \
1757	7,0 $inner.density_l -anchor w -pady 2 \
1758	7,1 $inner.density -fill x -pady 2 \
1759
1760	blt::table configure $inner r* c* -resize none
1761	blt::table configure $inner r10 c1 c2 -resize expand
1762	}
1763
1764	itcl::body Rappture::VtkStreamlinesViewer::BuildAxisTab {} {
1765
1766	set fg [option get $itk_component(hull) font Font]
1767	#set bfg [option get $itk_component(hull) boldFont Font]
1768
1769	set inner [$itk_component(main) insert end \
1770	-title "Axis Settings" \
1771	-icon [Rappture::icon axis2]]
1772	$inner configure -borderwidth 4
1773
1774	checkbutton $inner.visible \
1775	-text "Axes" \
1776	-variable [itcl::scope _settings(-axesvisible)] \
1777	-command [itcl::code $this AdjustSetting -axesvisible] \
1778	-font "Arial 9"
1779
1780	checkbutton $inner.labels \
1781	-text "Axis Labels" \
1782	-variable [itcl::scope _settings(-axislabelsvisible)] \
1783	-command [itcl::code $this AdjustSetting -axislabelsvisible] \
1784	-font "Arial 9"
1785	label $inner.grid_l -text "Grid" -font "Arial 9"
1786	checkbutton $inner.xgrid \
1787	-text "X" \
1788	-variable [itcl::scope _settings(-xgrid)] \
1789	-command [itcl::code $this AdjustSetting -xgrid] \
1790	-font "Arial 9"
1791	checkbutton $inner.ygrid \
1792	-text "Y" \
1793	-variable [itcl::scope _settings(-ygrid)] \
1794	-command [itcl::code $this AdjustSetting -ygrid] \
1795	-font "Arial 9"
1796	checkbutton $inner.zgrid \
1797	-text "Z" \
1798	-variable [itcl::scope _settings(-zgrid)] \
1799	-command [itcl::code $this AdjustSetting -zgrid] \
1800	-font "Arial 9"
1801	checkbutton $inner.minorticks \
1802	-text "Minor Ticks" \
1803	-variable [itcl::scope _settings(-axisminorticks)] \
1804	-command [itcl::code $this AdjustSetting -axisminorticks] \
1805	-font "Arial 9"
1806
1807	label $inner.mode_l -text "Mode" -font "Arial 9"
1808
1809	itk_component add axismode {
1810	Rappture::Combobox $inner.mode -width 10 -editable no
1811	}
1812	$inner.mode choices insert end \
1813	"static_triad" "static" \
1814	"closest_triad" "closest" \
1815	"furthest_triad" "farthest" \
1816	"outer_edges" "outer"
1817	$itk_component(axismode) value $_settings(-axismode)
1818	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1819
1820	blt::table $inner \
1821	0,0 $inner.visible -anchor w -cspan 4 \
1822	1,0 $inner.labels -anchor w -cspan 4 \
1823	2,0 $inner.minorticks -anchor w -cspan 4 \
1824	4,0 $inner.grid_l -anchor w \
1825	4,1 $inner.xgrid -anchor w \
1826	4,2 $inner.ygrid -anchor w \
1827	4,3 $inner.zgrid -anchor w \
1828	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1829	5,1 $inner.mode -fill x -cspan 3
1830
1831	blt::table configure $inner r* c* -resize none
1832	blt::table configure $inner r7 c6 -resize expand
1833	blt::table configure $inner r3 -height 0.125i
1834	}
1835
1836	itcl::body Rappture::VtkStreamlinesViewer::BuildCameraTab {} {
1837	set inner [$itk_component(main) insert end \
1838	-title "Camera Settings" \
1839	-icon [Rappture::icon camera]]
1840	$inner configure -borderwidth 4
1841
1842	label $inner.view_l -text "view" -font "Arial 9"
1843	set f [frame $inner.view]
1844	foreach side { front back left right top bottom } {
1845	button $f.$side -image [Rappture::icon view$side] \
1846	-command [itcl::code $this SetOrientation $side]
1847	Rappture::Tooltip::for $f.$side "Change the view to $side"
1848	pack $f.$side -side left
1849	}
1850
1851	blt::table $inner \
1852	0,0 $inner.view_l -anchor e -pady 2 \
1853	0,1 $inner.view -anchor w -pady 2
1854	blt::table configure $inner r0 -resize none
1855
1856	set labels { qx qy qz qw xpan ypan zoom }
1857	set row 1
1858	foreach tag $labels {
1859	label $inner.${tag}label -text $tag -font "Arial 9"
1860	entry $inner.${tag} -font "Arial 9" -bg white \
1861	-textvariable [itcl::scope _view(-$tag)]
1862	bind $inner.${tag} <Return> \
1863	[itcl::code $this camera set -${tag}]
1864	bind $inner.${tag} <KP_Enter> \
1865	[itcl::code $this camera set -${tag}]
1866	blt::table $inner \
1867	$row,0 $inner.${tag}label -anchor e -pady 2 \
1868	$row,1 $inner.${tag} -anchor w -pady 2
1869	blt::table configure $inner r$row -resize none
1870	incr row
1871	}
1872	checkbutton $inner.ortho \
1873	-text "Orthographic Projection" \
1874	-variable [itcl::scope _view(-ortho)] \
1875	-command [itcl::code $this camera set -ortho] \
1876	-font "Arial 9"
1877	blt::table $inner \
1878	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1879	blt::table configure $inner r$row -resize none
1880	incr row
1881
1882	blt::table configure $inner c* -resize none
1883	blt::table configure $inner c2 -resize expand
1884	blt::table configure $inner r$row -resize expand
1885	}
1886
1887	itcl::body Rappture::VtkStreamlinesViewer::BuildCutplaneTab {} {
1888
1889	set fg [option get $itk_component(hull) font Font]
1890
1891	set inner [$itk_component(main) insert end \
1892	-title "Cutplane Settings" \
1893	-icon [Rappture::icon cutbutton]]
1894
1895	$inner configure -borderwidth 4
1896
1897	checkbutton $inner.visible \
1898	-text "Show Cutplanes" \
1899	-variable [itcl::scope _settings(-cutplanevisible)] \
1900	-command [itcl::code $this AdjustSetting -cutplanevisible] \
1901	-font "Arial 9"
1902
1903	checkbutton $inner.wireframe \
1904	-text "Show Wireframe" \
1905	-variable [itcl::scope _settings(-cutplanewireframe)] \
1906	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
1907	-font "Arial 9"
1908
1909	checkbutton $inner.lighting \
1910	-text "Enable Lighting" \
1911	-variable [itcl::scope _settings(-cutplanelighting)] \
1912	-command [itcl::code $this AdjustSetting -cutplanelighting] \
1913	-font "Arial 9"
1914
1915	checkbutton $inner.edges \
1916	-text "Show Edges" \
1917	-variable [itcl::scope _settings(-cutplaneedges)] \
1918	-command [itcl::code $this AdjustSetting -cutplaneedges] \
1919	-font "Arial 9"
1920
1921	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1922	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1923	-variable [itcl::scope _settings(-cutplaneopacity)] \
1924	-width 10 \
1925	-showvalue off \
1926	-command [itcl::code $this AdjustSetting -cutplaneopacity]
1927	$inner.opacity set $_settings(-cutplaneopacity)
1928
1929	# X-value slicer...
1930	itk_component add xCutButton {
1931	Rappture::PushButton $inner.xbutton \
1932	-onimage [Rappture::icon x-cutplane-red] \
1933	-offimage [Rappture::icon x-cutplane-red] \
1934	-command [itcl::code $this AdjustSetting -cutplanexvisible] \
1935	-variable [itcl::scope _settings(-cutplanexvisible)]
1936	}
1937	Rappture::Tooltip::for $itk_component(xCutButton) \
1938	"Toggle the X-axis cutplane on/off"
1939	$itk_component(xCutButton) select
1940
1941	itk_component add xCutScale {
1942	::scale $inner.xval -from 100 -to 0 \
1943	-width 10 -orient vertical -showvalue yes \
1944	-borderwidth 1 -highlightthickness 0 \
1945	-command [itcl::code $this EventuallySetCutplane x] \
1946	-variable [itcl::scope _settings(-cutplanexposition)] \
1947	-foreground red3 -font "Arial 9 bold"
1948	} {
1949	usual
1950	ignore -borderwidth -highlightthickness -foreground -font
1951	}
1952	# Set the default cutplane value before disabling the scale.
1953	$itk_component(xCutScale) set 50
1954	$itk_component(xCutScale) configure -state disabled
1955	Rappture::Tooltip::for $itk_component(xCutScale) \
1956	"@[itcl::code $this Slice tooltip x]"
1957
1958	# Y-value slicer...
1959	itk_component add yCutButton {
1960	Rappture::PushButton $inner.ybutton \
1961	-onimage [Rappture::icon y-cutplane-green] \
1962	-offimage [Rappture::icon y-cutplane-green] \
1963	-command [itcl::code $this AdjustSetting -cutplaneyvisible] \
1964	-variable [itcl::scope _settings(-cutplaneyvisible)]
1965	}
1966	Rappture::Tooltip::for $itk_component(yCutButton) \
1967	"Toggle the Y-axis cutplane on/off"
1968	$itk_component(yCutButton) select
1969
1970	itk_component add yCutScale {
1971	::scale $inner.yval -from 100 -to 0 \
1972	-width 10 -orient vertical -showvalue yes \
1973	-borderwidth 1 -highlightthickness 0 \
1974	-command [itcl::code $this EventuallySetCutplane y] \
1975	-variable [itcl::scope _settings(-cutplaneyposition)] \
1976	-foreground green3 -font "Arial 9 bold"
1977	} {
1978	usual
1979	ignore -borderwidth -highlightthickness -foreground -font
1980	}
1981	Rappture::Tooltip::for $itk_component(yCutScale) \
1982	"@[itcl::code $this Slice tooltip y]"
1983	# Set the default cutplane value before disabling the scale.
1984	$itk_component(yCutScale) set 50
1985	$itk_component(yCutScale) configure -state disabled
1986
1987	# Z-value slicer...
1988	itk_component add zCutButton {
1989	Rappture::PushButton $inner.zbutton \
1990	-onimage [Rappture::icon z-cutplane-blue] \
1991	-offimage [Rappture::icon z-cutplane-blue] \
1992	-command [itcl::code $this AdjustSetting -cutplanezvisible] \
1993	-variable [itcl::scope _settings(-cutplanezvisible)]
1994	}
1995	Rappture::Tooltip::for $itk_component(zCutButton) \
1996	"Toggle the Z-axis cutplane on/off"
1997	$itk_component(zCutButton) select
1998
1999	itk_component add zCutScale {
2000	::scale $inner.zval -from 100 -to 0 \
2001	-width 10 -orient vertical -showvalue yes \
2002	-borderwidth 1 -highlightthickness 0 \
2003	-command [itcl::code $this EventuallySetCutplane z] \
2004	-variable [itcl::scope _settings(-cutplanezposition)] \
2005	-foreground blue3 -font "Arial 9 bold"
2006	} {
2007	usual
2008	ignore -borderwidth -highlightthickness -foreground -font
2009	}
2010	$itk_component(zCutScale) set 50
2011	$itk_component(zCutScale) configure -state disabled
2012	Rappture::Tooltip::for $itk_component(zCutScale) \
2013	"@[itcl::code $this Slice tooltip z]"
2014
2015	blt::table $inner \
2016	0,0 $inner.lighting -anchor w -pady 2 -cspan 4 \
2017	1,0 $inner.wireframe -anchor w -pady 2 -cspan 4 \
2018	2,0 $inner.edges -anchor w -pady 2 -cspan 4 \
2019	3,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2020	3,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2021	4,0 $itk_component(xCutButton) -anchor w -padx 2 -pady 2 \
2022	5,0 $itk_component(yCutButton) -anchor w -padx 2 -pady 2 \
2023	6,0 $itk_component(zCutButton) -anchor w -padx 2 -pady 2 \
2024	4,1 $itk_component(xCutScale) -fill y -rspan 4 \
2025	4,2 $itk_component(yCutScale) -fill y -rspan 4 \
2026	4,3 $itk_component(zCutScale) -fill y -rspan 4 \
2027
2028	blt::table configure $inner r* c* -resize none
2029	blt::table configure $inner r7 c4 -resize expand
2030	}
2031
2032	#
2033	# camera --
2034	#
2035	itcl::body Rappture::VtkStreamlinesViewer::camera {option args} {
2036	switch -- $option {
2037	"show" {
2038	puts [array get _view]
2039	}
2040	"set" {
2041	set what [lindex $args 0]
2042	set x $_view($what)
2043	set code [catch { string is double $x } result]
2044	if { $code != 0 \|\| !$result } {
2045	return
2046	}
2047	switch -- $what {
2048	"-ortho" {
2049	if {$_view($what)} {
2050	SendCmd "camera mode ortho"
2051	} else {
2052	SendCmd "camera mode persp"
2053	}
2054	}
2055	"-xpan" - "-ypan" {
2056	PanCamera
2057	}
2058	"-qx" - "-qy" - "-qz" - "-qw" {
2059	set q [ViewToQuaternion]
2060	$_arcball quaternion $q
2061	EventuallyRotate $q
2062	}
2063	"-zoom" {
2064	SendCmd "camera zoom $_view($what)"
2065	}
2066	}
2067	}
2068	}
2069	}
2070
2071	itcl::body Rappture::VtkStreamlinesViewer::GetVtkData { args } {
2072	set bytes ""
2073	foreach dataobj [get] {
2074	foreach comp [$dataobj components] {
2075	set tag $dataobj-$comp
2076	set contents [$dataobj vtkdata $comp]
2077	append bytes "$contents\n"
2078	}
2079	}
2080	return [list .vtk $bytes]
2081	}
2082
2083	itcl::body Rappture::VtkStreamlinesViewer::GetImage { args } {
2084	if { [image width $_image(download)] > 0 &&
2085	[image height $_image(download)] > 0 } {
2086	set bytes [$_image(download) data -format "jpeg -quality 100"]
2087	set bytes [Rappture::encoding::decode -as b64 $bytes]
2088	return [list .jpg $bytes]
2089	}
2090	return ""
2091	}
2092
2093	itcl::body Rappture::VtkStreamlinesViewer::BuildDownloadPopup { popup command } {
2094	Rappture::Balloon $popup \
2095	-title "[Rappture::filexfer::label downloadWord] as..."
2096	set inner [$popup component inner]
2097	label $inner.summary -text "" -anchor w
2098	radiobutton $inner.vtk_button -text "VTK data file" \
2099	-variable [itcl::scope _downloadPopup(format)] \
2100	-font "Helvetica 9 " \
2101	-value vtk
2102	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2103	radiobutton $inner.image_button -text "Image File" \
2104	-variable [itcl::scope _downloadPopup(format)] \
2105	-value image
2106	Rappture::Tooltip::for $inner.image_button \
2107	"Save as digital image."
2108
2109	button $inner.ok -text "Save" \
2110	-highlightthickness 0 -pady 2 -padx 3 \
2111	-command $command \
2112	-compound left \
2113	-image [Rappture::icon download]
2114
2115	button $inner.cancel -text "Cancel" \
2116	-highlightthickness 0 -pady 2 -padx 3 \
2117	-command [list $popup deactivate] \
2118	-compound left \
2119	-image [Rappture::icon cancel]
2120
2121	blt::table $inner \
2122	0,0 $inner.summary -cspan 2 \
2123	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2124	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2125	4,1 $inner.cancel -width .9i -fill y \
2126	4,0 $inner.ok -padx 2 -width .9i -fill y
2127	blt::table configure $inner r3 -height 4
2128	blt::table configure $inner r4 -pady 4
2129	raise $inner.image_button
2130	$inner.vtk_button invoke
2131	return $inner
2132	}
2133
2134	itcl::body Rappture::VtkStreamlinesViewer::SetObjectStyle { dataobj comp } {
2135	# Parse style string.
2136	set tag $dataobj-$comp
2137	set style [$dataobj style $comp]
2138	array set settings {
2139	-color \#808080
2140	-edges 0
2141	-edgecolor black
2142	-linewidth 1.0
2143	-opacity 0.4
2144	-wireframe 0
2145	-lighting 1
2146	-seeds 1
2147	-seedcolor white
2148	-visible 1
2149	}
2150	if { $dataobj != $_first } {
2151	set settings(-opacity) 1
2152	}
2153	array set settings $style
2154	StartBufferingCommands
2155	SendCmd "streamlines add $tag"
2156	SendCmd "streamlines seed visible off $tag"
2157	set seeds [$dataobj hints seeds]
2158	if { $seeds != "" && ![info exists _seeds($dataobj)] } {
2159	set length [string length $seeds]
2160	SendCmd "streamlines seed fmesh 200 data follows $length $tag"
2161	SendData $seeds
2162	set _seeds($dataobj) 1
2163	}
2164	SendCmd "cutplane add $tag"
2165	SendCmd "polydata add $tag"
2166	SendCmd "polydata colormode constant {} $tag"
2167	set _settings(-volumeedges) $settings(-edges)
2168	set _settings(-volumelighting) $settings(-lighting)
2169	set _settings(-volumeopacity) $settings(-opacity)
2170	set _settings(-volumewireframe) $settings(-wireframe)
2171	set _settings(-volumeopacity) [expr $settings(-opacity) * 100.0]
2172	StopBufferingCommands
2173	SetColormap $dataobj $comp
2174	}
2175
2176	itcl::body Rappture::VtkStreamlinesViewer::IsValidObject { dataobj } {
2177	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2178	return 0
2179	}
2180	return 1
2181	}
2182
2183	# ----------------------------------------------------------------------
2184	# USAGE: ReceiveLegend <colormap> <title> <vmin> <vmax> <size>
2185	#
2186	# Invoked automatically whenever the "legend" command comes in from
2187	# the rendering server. Indicates that binary image data with the
2188	# specified <size> will follow.
2189	# ----------------------------------------------------------------------
2190	itcl::body Rappture::VtkStreamlinesViewer::ReceiveLegend { colormap title vmin vmax size } {
2191	set _legendPending 0
2192	set _title $title
2193	regsub {\(mag\)} $title "" _title
2194	if { [IsConnected] } {
2195	set bytes [ReceiveBytes $size]
2196	if { ![info exists _image(legend)] } {
2197	set _image(legend) [image create photo]
2198	}
2199	$_image(legend) configure -data $bytes
2200	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2201	if { [catch {DrawLegend} errs] != 0 } {
2202	puts stderr errs=$errs
2203	}
2204	}
2205	}
2206
2207	#
2208	# DrawLegend --
2209	#
2210	# Draws the legend in it's own canvas which resides to the right
2211	# of the contour plot area.
2212	#
2213	itcl::body Rappture::VtkStreamlinesViewer::DrawLegend {} {
2214	set fname $_curFldName
2215	set c $itk_component(view)
2216	set w [winfo width $c]
2217	set h [winfo height $c]
2218	set font "Arial 8"
2219	set lineht [font metrics $font -linespace]
2220
2221	if { [info exists _fields($fname)] } {
2222	foreach { title units } $_fields($fname) break
2223	if { $units != "" } {
2224	set title [format "%s (%s)" $title $units]
2225	}
2226	} else {
2227	set title $fname
2228	}
2229	if { $_settings(-legendvisible) } {
2230	set x [expr $w - 2]
2231	if { [$c find withtag "legend"] == "" } {
2232	set y 2
2233	$c create text $x $y \
2234	-anchor ne \
2235	-fill $itk_option(-plotforeground) -tags "title legend" \
2236	-font $font
2237	incr y $lineht
2238	$c create text $x $y \
2239	-anchor ne \
2240	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2241	-font $font
2242	incr y $lineht
2243	$c create image $x $y \
2244	-anchor ne \
2245	-image $_image(legend) -tags "colormap legend"
2246	$c create text $x [expr {$h-2}] \
2247	-anchor se \
2248	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2249	-font $font
2250	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2251	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2252	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2253	}
2254	$c bind title <ButtonPress> [itcl::code $this Combo post]
2255	$c bind title <Enter> [itcl::code $this Combo activate]
2256	$c bind title <Leave> [itcl::code $this Combo deactivate]
2257	# Reset the item coordinates according the current size of the plot.
2258	$c itemconfigure title -text $title
2259	if { [info exists _limits($_curFldName)] } {
2260	foreach {vmin vmax} $_limits($_curFldName) break
2261	$c itemconfigure vmin -text [format %g $vmin]
2262	$c itemconfigure vmax -text [format %g $vmax]
2263	}
2264	set y 2
2265	$c coords title $x $y
2266	incr y $lineht
2267	$c coords vmax $x $y
2268	incr y $lineht
2269	$c coords colormap $x $y
2270	$c coords vmin $x [expr {$h - 2}]
2271	}
2272	}
2273
2274	#
2275	# EnterLegend --
2276	#
2277	itcl::body Rappture::VtkStreamlinesViewer::EnterLegend { x y } {
2278	SetLegendTip $x $y
2279	}
2280
2281	#
2282	# MotionLegend --
2283	#
2284	itcl::body Rappture::VtkStreamlinesViewer::MotionLegend { x y } {
2285	Rappture::Tooltip::tooltip cancel
2286	set c $itk_component(view)
2287	SetLegendTip $x $y
2288	}
2289
2290	#
2291	# LeaveLegend --
2292	#
2293	itcl::body Rappture::VtkStreamlinesViewer::LeaveLegend { } {
2294	Rappture::Tooltip::tooltip cancel
2295	.rappturetooltip configure -icon ""
2296	}
2297
2298	#
2299	# SetLegendTip --
2300	#
2301	itcl::body Rappture::VtkStreamlinesViewer::SetLegendTip { x y } {
2302	set c $itk_component(view)
2303	set w [winfo width $c]
2304	set h [winfo height $c]
2305	set font "Arial 8"
2306	set lineht [font metrics $font -linespace]
2307
2308	set imgHeight [image height $_image(legend)]
2309	set coords [$c coords colormap]
2310	set imgX [expr $w - [image width $_image(legend)] - 2]
2311	set imgY [expr $y - 2 * ($lineht + 2)]
2312
2313	if { [info exists _fields($_title)] } {
2314	foreach { title units } $_fields($_title) break
2315	if { $units != "" } {
2316	set title [format "%s (%s)" $title $units]
2317	}
2318	} else {
2319	set title $_title
2320	}
2321	# Make a swatch of the selected color
2322	if { [catch { $_image(legend) get 10 $imgY } pixel] != 0 } {
2323	#puts stderr "out of range: $imgY"
2324	return
2325	}
2326	if { ![info exists _image(swatch)] } {
2327	set _image(swatch) [image create photo -width 24 -height 24]
2328	}
2329	set color [eval format "\#%02x%02x%02x" $pixel]
2330	$_image(swatch) put black -to 0 0 23 23
2331	$_image(swatch) put $color -to 1 1 22 22
2332	.rappturetooltip configure -icon $_image(swatch)
2333
2334	# Compute the value of the point
2335	if { [info exists _limits($_curFldName)] } {
2336	foreach {vmin vmax} $_limits($_curFldName) break
2337	set t [expr 1.0 - (double($imgY) / double($imgHeight-1))]
2338	set value [expr $t * ($vmax - $vmin) + $vmin]
2339	} else {
2340	set value 0.0
2341	}
2342	set tipx [expr $x + 15]
2343	set tipy [expr $y - 5]
2344	Rappture::Tooltip::text $c "$title $value"
2345	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2346	}
2347
2348	# ----------------------------------------------------------------------
2349	# USAGE: Slice move x\|y\|z <newval>
2350	#
2351	# Called automatically when the user drags the slider to move the
2352	# cut plane that slices 3D data. Gets the current value from the
2353	# slider and moves the cut plane to the appropriate point in the
2354	# data set.
2355	# ----------------------------------------------------------------------
2356	itcl::body Rappture::VtkStreamlinesViewer::Slice {option args} {
2357	switch -- $option {
2358	"move" {
2359	set axis [lindex $args 0]
2360	set newval [lindex $args 1]
2361	if {[llength $args] != 2} {
2362	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2363	}
2364	set newpos [expr {0.01*$newval}]
2365	SendCmd "cutplane slice $axis $newpos"
2366	}
2367	"tooltip" {
2368	set axis [lindex $args 0]
2369	set val [$itk_component(${axis}CutScale) get]
2370	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2371	}
2372	default {
2373	error "bad option \"$option\": should be axis, move, or tooltip"
2374	}
2375	}
2376	}
2377
2378	# ----------------------------------------------------------------------
2379	# USAGE: _dropdown post
2380	# USAGE: _dropdown unpost
2381	# USAGE: _dropdown select
2382	#
2383	# Used internally to handle the dropdown list for this combobox. The
2384	# post/unpost options are invoked when the list is posted or unposted
2385	# to manage the relief of the controlling button. The select option
2386	# is invoked whenever there is a selection from the list, to assign
2387	# the value back to the gauge.
2388	# ----------------------------------------------------------------------
2389	itcl::body Rappture::VtkStreamlinesViewer::Combo {option} {
2390	set c $itk_component(view)
2391	switch -- $option {
2392	post {
2393	foreach { x1 y1 x2 y2 } [$c bbox title] break
2394	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2395	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2396	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2397	tk_popup $itk_component(fieldmenu) $x $y
2398	}
2399	activate {
2400	$c itemconfigure title -fill red
2401	}
2402	deactivate {
2403	$c itemconfigure title -fill white
2404	}
2405	invoke {
2406	$itk_component(field) value $_curFldLabel
2407	AdjustSetting -field
2408	}
2409	default {
2410	error "bad option \"$option\": should be post, unpost, select"
2411	}
2412	}
2413	}
2414
2415	itcl::body Rappture::VtkStreamlinesViewer::SetOrientation { side } {
2416	array set positions {
2417	front "1 0 0 0"
2418	back "0 0 1 0"
2419	left "0.707107 0 -0.707107 0"
2420	right "0.707107 0 0.707107 0"
2421	top "0.707107 -0.707107 0 0"
2422	bottom "0.707107 0.707107 0 0"
2423	}
2424	foreach name { -qw -qx -qy -qz } value $positions($side) {
2425	set _view($name) $value
2426	}
2427	set q [ViewToQuaternion]
2428	$_arcball quaternion $q
2429	SendCmd "camera orient $q"
2430	SendCmd "camera reset"
2431	set _view(-xpan) 0
2432	set _view(-ypan) 0
2433	set _view(-zoom) 1.0
2434	}

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