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vtkstreamlinesviewer.tcl @ 3814

Last change on this file since 3814 was 3814, checked in by ldelgass, 11 years ago

Fixes for dataobj delete in VTK viewers:

Don't hide datasets from delete method since it isn't buffered and causes

flashes

Don't keep deleted dataobjs in _dlist: the commands are no longer valid even

though server objects remain. FIXME: should delete server objects or reuse
dataobj names for results, as we leak server datasets when user clears
datasets. However, we don't want to delete hidden sequence elts.

In vtkviewer: only make dataobjs with a raise setting visible

File size: 83.4 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkviewer - Vtk drawing 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) 2004-2012 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	protected method Connect {}
65	protected method CurrentDatasets {args}
66	protected method Disconnect {}
67	protected method DoResize {}
68	protected method DoReseed {}
69	protected method DoRotate {}
70	protected method AdjustSetting {what {value ""}}
71	protected method InitSettings { args }
72	protected method Pan {option x y}
73	protected method Pick {x y}
74	protected method Rebuild {}
75	protected method ReceiveDataset { args }
76	protected method ReceiveImage { args }
77	protected method ReceiveLegend { colormap title vmin vmax size }
78	protected method Rotate {option x y}
79	protected method Zoom {option}
80
81	# The following methods are only used by this class.
82	private method BuildAxisTab {}
83	private method BuildCameraTab {}
84	private method BuildColormap { name colors }
85	private method BuildCutplaneTab {}
86	private method BuildDownloadPopup { widget command }
87	private method BuildStreamsTab {}
88	private method BuildVolumeTab {}
89	private method DrawLegend {}
90	private method Combo { option }
91	private method EnterLegend { x y }
92	private method EventuallyResize { w h }
93	private method EventuallyReseed { numPoints }
94	private method EventuallyRotate { q }
95	private method EventuallySetCutplane { axis args }
96	private method GetImage { args }
97	private method GetVtkData { args }
98	private method IsValidObject { dataobj }
99	private method LeaveLegend {}
100	private method MotionLegend { x y }
101	private method PanCamera {}
102	private method RequestLegend {}
103	private method SetColormap { dataobj comp }
104	private method ChangeColormap { dataobj comp color }
105	private method SetLegendTip { x y }
106	private method SetObjectStyle { dataobj comp }
107	private method Slice {option args}
108	private method SetOrientation { side }
109
110	private variable _arcball ""
111
112	private variable _dlist "" ; # list of data objects
113	private variable _obj2datasets
114	private variable _obj2ovride ; # maps dataobj => style override
115	private variable _datasets ; # contains all the dataobj-component
116	; # datasets in the server
117	private variable _colormaps ; # contains all the colormaps
118	; # in the server.
119	private variable _dataset2style ;# maps dataobj-component to transfunc
120
121	private variable _click ; # info used for rotate operations
122	private variable _limits ; # autoscale min/max for all axes
123	private variable _view ; # view params for 3D view
124	private variable _settings
125	private variable _style; # Array of current component styles.
126	private variable _initialStyle; # Array of initial component styles.
127	private variable _reset 1; # indicates if camera needs to be reset
128	# to starting position.
129
130	private variable _first "" ; # This is the topmost dataset.
131	private variable _start 0
132	private variable _title ""
133	private variable _seeds
134
135	common _downloadPopup; # download options from popup
136	private common _hardcopy
137	private variable _width 0
138	private variable _height 0
139	private variable _resizePending 0
140	private variable _reseedPending 0
141	private variable _rotatePending 0
142	private variable _cutplanePending 0
143	private variable _legendPending 0
144	private variable _outline
145	private variable _vectorFields
146	private variable _scalarFields
147	private variable _fields
148	private variable _curFldName ""
149	private variable _curFldLabel ""
150	private variable _field ""
151	private variable _numSeeds 200
152	private variable _colorMode "vmag";# Mode of colormap (vmag or scalar)
153	}
154
155	itk::usual VtkStreamlinesViewer {
156	keep -background -foreground -cursor -font
157	keep -plotbackground -plotforeground
158	}
159
160	# ----------------------------------------------------------------------
161	# CONSTRUCTOR
162	# ----------------------------------------------------------------------
163	itcl::body Rappture::VtkStreamlinesViewer::constructor {hostlist args} {
164	package require vtk
165	set _serverType "vtkvis"
166
167	EnableWaitDialog 2000
168
169	# Rebuild event
170	$_dispatcher register !rebuild
171	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
172
173	# Resize event
174	$_dispatcher register !resize
175	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
176
177	# Reseed event
178	$_dispatcher register !reseed
179	$_dispatcher dispatch $this !reseed "[itcl::code $this DoReseed]; list"
180
181	# Rotate event
182	$_dispatcher register !rotate
183	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
184
185	# Legend event
186	$_dispatcher register !legend
187	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
188
189	# X-Cutplane event
190	$_dispatcher register !xcutplane
191	$_dispatcher dispatch $this !xcutplane \
192	"[itcl::code $this AdjustSetting cutplaneXPosition]; list"
193
194	# Y-Cutplane event
195	$_dispatcher register !ycutplane
196	$_dispatcher dispatch $this !ycutplane \
197	"[itcl::code $this AdjustSetting cutplaneYPosition]; list"
198
199	# Z-Cutplane event
200	$_dispatcher register !zcutplane
201	$_dispatcher dispatch $this !zcutplane \
202	"[itcl::code $this AdjustSetting cutplaneZPosition]; list"
203
204	#
205	# Populate parser with commands handle incoming requests
206	#
207	$_parser alias image [itcl::code $this ReceiveImage]
208	$_parser alias dataset [itcl::code $this ReceiveDataset]
209	$_parser alias legend [itcl::code $this ReceiveLegend]
210
211	array set _outline {
212	id -1
213	afterId -1
214	x1 -1
215	y1 -1
216	x2 -1
217	y2 -1
218	}
219	# Initialize the view to some default parameters.
220	array set _view {
221	qw 0.853553
222	qx -0.353553
223	qy 0.353553
224	qz 0.146447
225	zoom 1.0
226	xpan 0
227	ypan 0
228	ortho 0
229	}
230	set _arcball [blt::arcball create 100 100]
231	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
232	$_arcball quaternion $q
233
234	array set _settings [subst {
235	axesVisible 1
236	axisLabelsVisible 1
237	axisXGrid 0
238	axisYGrid 0
239	axisZGrid 0
240	cutplaneEdges 0
241	cutplaneLighting 1
242	cutplaneOpacity 100
243	cutplaneVisible 0
244	cutplaneWireframe 0
245	cutplaneXPosition 50
246	cutplaneXVisible 1
247	cutplaneYPosition 50
248	cutplaneYVisible 1
249	cutplaneZPosition 50
250	cutplaneZVisible 1
251	legendVisible 1
252	streamlinesLighting 1
253	streamlinesMode lines
254	streamlinesNumSeeds 200
255	streamlinesOpacity 100
256	streamlinesScale 1
257	streamlinesSeedsVisible 0
258	streamlinesVisible 1
259	volumeEdges 0
260	volumeLighting 1
261	volumeOpacity 40
262	volumeVisible 1
263	volumeWireframe 0
264	}]
265
266	itk_component add view {
267	canvas $itk_component(plotarea).view \
268	-highlightthickness 0 -borderwidth 0
269	} {
270	usual
271	ignore -highlightthickness -borderwidth -background
272	}
273
274	itk_component add fieldmenu {
275	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
276	-tearoff no
277	} {
278	usual
279	ignore -background -foreground -relief -tearoff
280	}
281	set c $itk_component(view)
282	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
283	bind $c <4> [itcl::code $this Zoom in 0.25]
284	bind $c <5> [itcl::code $this Zoom out 0.25]
285	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
286	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
287	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
288	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
289	bind $c <Enter> "focus %W"
290	bind $c <Control-F1> [itcl::code $this ToggleConsole]
291
292	# Fix the scrollregion in case we go off screen
293	$c configure -scrollregion [$c bbox all]
294
295	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
296	set _map(cwidth) -1
297	set _map(cheight) -1
298	set _map(zoom) 1.0
299	set _map(original) ""
300
301	set f [$itk_component(main) component controls]
302	itk_component add reset {
303	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
304	-highlightthickness 0 \
305	-image [Rappture::icon reset-view] \
306	-command [itcl::code $this Zoom reset]
307	} {
308	usual
309	ignore -highlightthickness
310	}
311	pack $itk_component(reset) -side top -padx 2 -pady 2
312	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
313
314	itk_component add zoomin {
315	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
316	-highlightthickness 0 \
317	-image [Rappture::icon zoom-in] \
318	-command [itcl::code $this Zoom in]
319	} {
320	usual
321	ignore -highlightthickness
322	}
323	pack $itk_component(zoomin) -side top -padx 2 -pady 2
324	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
325
326	itk_component add zoomout {
327	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
328	-highlightthickness 0 \
329	-image [Rappture::icon zoom-out] \
330	-command [itcl::code $this Zoom out]
331	} {
332	usual
333	ignore -highlightthickness
334	}
335	pack $itk_component(zoomout) -side top -padx 2 -pady 2
336	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
337
338	itk_component add volume {
339	Rappture::PushButton $f.volume \
340	-onimage [Rappture::icon volume-on] \
341	-offimage [Rappture::icon volume-off] \
342	-variable [itcl::scope _settings(volumeVisible)] \
343	-command [itcl::code $this AdjustSetting volumeVisible]
344	}
345	$itk_component(volume) select
346	Rappture::Tooltip::for $itk_component(volume) \
347	"Don't display the volume"
348	pack $itk_component(volume) -padx 2 -pady 2
349
350	itk_component add streamlines {
351	Rappture::PushButton $f.streamlines \
352	-onimage [Rappture::icon streamlines-on] \
353	-offimage [Rappture::icon streamlines-off] \
354	-variable [itcl::scope _settings(streamlinesVisible)] \
355	-command [itcl::code $this AdjustSetting streamlinesVisible] \
356	}
357	$itk_component(streamlines) select
358	Rappture::Tooltip::for $itk_component(streamlines) \
359	"Toggle the streamlines on/off"
360	pack $itk_component(streamlines) -padx 2 -pady 2
361
362	itk_component add cutplane {
363	Rappture::PushButton $f.cutplane \
364	-onimage [Rappture::icon cutbutton] \
365	-offimage [Rappture::icon cutbutton] \
366	-variable [itcl::scope _settings(cutplaneVisible)] \
367	-command [itcl::code $this AdjustSetting cutplaneVisible]
368	}
369	Rappture::Tooltip::for $itk_component(cutplane) \
370	"Show/Hide cutplanes"
371	pack $itk_component(cutplane) -padx 2 -pady 2
372
373
374	if { [catch {
375	BuildVolumeTab
376	BuildStreamsTab
377	BuildCutplaneTab
378	BuildAxisTab
379	BuildCameraTab
380	} errs] != 0 } {
381	puts stderr errs=$errs
382	}
383	# Legend
384
385	set _image(legend) [image create photo]
386	itk_component add legend {
387	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
388	} {
389	usual
390	ignore -highlightthickness
391	rename -background -plotbackground plotBackground Background
392	}
393
394	# Hack around the Tk panewindow. The problem is that the requested
395	# size of the 3d view isn't set until an image is retrieved from
396	# the server. So the panewindow uses the tiny size.
397	set w 10000
398	pack forget $itk_component(view)
399	blt::table $itk_component(plotarea) \
400	0,0 $itk_component(view) -fill both -reqwidth $w
401	blt::table configure $itk_component(plotarea) c1 -resize none
402
403	# Bindings for rotation via mouse
404	bind $itk_component(view) <ButtonPress-1> \
405	[itcl::code $this Rotate click %x %y]
406	bind $itk_component(view) <B1-Motion> \
407	[itcl::code $this Rotate drag %x %y]
408	bind $itk_component(view) <ButtonRelease-1> \
409	[itcl::code $this Rotate release %x %y]
410	bind $itk_component(view) <Configure> \
411	[itcl::code $this EventuallyResize %w %h]
412
413	if 0 {
414	bind $itk_component(view) <Configure> \
415	[itcl::code $this EventuallyResize %w %h]
416	}
417	# Bindings for panning via mouse
418	bind $itk_component(view) <ButtonPress-2> \
419	[itcl::code $this Pan click %x %y]
420	bind $itk_component(view) <B2-Motion> \
421	[itcl::code $this Pan drag %x %y]
422	bind $itk_component(view) <ButtonRelease-2> \
423	[itcl::code $this Pan release %x %y]
424
425	#bind $itk_component(view) <ButtonRelease-3> \
426	# [itcl::code $this Pick %x %y]
427
428	# Bindings for panning via keyboard
429	bind $itk_component(view) <KeyPress-Left> \
430	[itcl::code $this Pan set -10 0]
431	bind $itk_component(view) <KeyPress-Right> \
432	[itcl::code $this Pan set 10 0]
433	bind $itk_component(view) <KeyPress-Up> \
434	[itcl::code $this Pan set 0 -10]
435	bind $itk_component(view) <KeyPress-Down> \
436	[itcl::code $this Pan set 0 10]
437	bind $itk_component(view) <Shift-KeyPress-Left> \
438	[itcl::code $this Pan set -2 0]
439	bind $itk_component(view) <Shift-KeyPress-Right> \
440	[itcl::code $this Pan set 2 0]
441	bind $itk_component(view) <Shift-KeyPress-Up> \
442	[itcl::code $this Pan set 0 -2]
443	bind $itk_component(view) <Shift-KeyPress-Down> \
444	[itcl::code $this Pan set 0 2]
445
446	# Bindings for zoom via keyboard
447	bind $itk_component(view) <KeyPress-Prior> \
448	[itcl::code $this Zoom out]
449	bind $itk_component(view) <KeyPress-Next> \
450	[itcl::code $this Zoom in]
451
452	bind $itk_component(view) <Enter> "focus $itk_component(view)"
453
454	if {[string equal "x11" [tk windowingsystem]]} {
455	# Bindings for zoom via mouse
456	bind $itk_component(view) <4> [itcl::code $this Zoom out]
457	bind $itk_component(view) <5> [itcl::code $this Zoom in]
458	}
459
460	set _image(download) [image create photo]
461
462	eval itk_initialize $args
463	Connect
464	update
465	}
466
467	# ----------------------------------------------------------------------
468	# DESTRUCTOR
469	# ----------------------------------------------------------------------
470	itcl::body Rappture::VtkStreamlinesViewer::destructor {} {
471	Disconnect
472	image delete $_image(plot)
473	image delete $_image(download)
474	catch { blt::arcball destroy $_arcball }
475	}
476
477	itcl::body Rappture::VtkStreamlinesViewer::DoResize {} {
478	if { $_width < 2 } {
479	set _width 500
480	}
481	if { $_height < 2 } {
482	set _height 500
483	}
484	set _start [clock clicks -milliseconds]
485	SendCmd "screen size $_width $_height"
486
487	set _legendPending 1
488	set _resizePending 0
489	}
490
491	itcl::body Rappture::VtkStreamlinesViewer::DoRotate {} {
492	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
493	SendCmd "camera orient $q"
494	set _rotatePending 0
495	}
496
497	itcl::body Rappture::VtkStreamlinesViewer::DoReseed {} {
498	foreach dataset [CurrentDatasets -visible] {
499	foreach {dataobj comp} [split $dataset -] break
500	# This command works for either random or fmesh seeds
501	SendCmd "streamlines seed numpts $_numSeeds $dataset"
502	}
503	set _reseedPending 0
504	}
505
506	itcl::body Rappture::VtkStreamlinesViewer::EventuallyResize { w h } {
507	set _width $w
508	set _height $h
509	$_arcball resize $w $h
510	if { !$_resizePending } {
511	set _resizePending 1
512	$_dispatcher event -after 400 !resize
513	}
514	}
515
516	itcl::body Rappture::VtkStreamlinesViewer::EventuallyReseed { numPoints } {
517	set _numSeeds $numPoints
518	if { !$_reseedPending } {
519	set _reseedPending 1
520	$_dispatcher event -after 600 !reseed
521	}
522	}
523
524	set rotate_delay 100
525
526	itcl::body Rappture::VtkStreamlinesViewer::EventuallyRotate { q } {
527	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
528	if { !$_rotatePending } {
529	set _rotatePending 1
530	global rotate_delay
531	$_dispatcher event -after $rotate_delay !rotate
532	}
533	}
534
535	itcl::body Rappture::VtkStreamlinesViewer::EventuallySetCutplane { axis args } {
536	if { !$_cutplanePending } {
537	set _cutplanePending 1
538	$_dispatcher event -after 100 !${axis}cutplane
539	}
540	}
541
542	# ----------------------------------------------------------------------
543	# USAGE: add <dataobj> ?<settings>?
544	#
545	# Clients use this to add a data object to the plot. The optional
546	# <settings> are used to configure the plot. Allowed settings are
547	# -color, -brightness, -width, -linestyle, and -raise.
548	# ----------------------------------------------------------------------
549	itcl::body Rappture::VtkStreamlinesViewer::add {dataobj {settings ""}} {
550	array set params {
551	-color auto
552	-width 1
553	-linestyle solid
554	-brightness 0
555	-raise 0
556	-description ""
557	-param ""
558	-type ""
559	}
560	array set params $settings
561	set params(-description) ""
562	set params(-param) ""
563	array set params $settings
564
565	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
566	# can't handle -autocolors yet
567	set params(-color) black
568	}
569	set pos [lsearch -exact $_dlist $dataobj]
570	if {$pos < 0} {
571	lappend _dlist $dataobj
572	}
573	set _obj2ovride($dataobj-color) $params(-color)
574	set _obj2ovride($dataobj-width) $params(-width)
575	set _obj2ovride($dataobj-raise) $params(-raise)
576	$_dispatcher event -idle !rebuild
577	}
578
579
580	# ----------------------------------------------------------------------
581	# USAGE: delete ?<dataobj1> <dataobj2> ...?
582	#
583	# Clients use this to delete a dataobj from the plot. If no dataobjs
584	# are specified, then all dataobjs are deleted. No data objects are
585	# deleted. They are only removed from the display list.
586	#
587	# ----------------------------------------------------------------------
588	itcl::body Rappture::VtkStreamlinesViewer::delete {args} {
589	if { [llength $args] == 0} {
590	set args $_dlist
591	}
592	# Delete all specified dataobjs
593	set changed 0
594	foreach dataobj $args {
595	set pos [lsearch -exact $_dlist $dataobj]
596	if { $pos < 0 } {
597	continue; # Don't know anything about it.
598	}
599	# Remove it from the dataobj list.
600	set _dlist [lreplace $_dlist $pos $pos]
601	array unset _obj2ovride $dataobj-*
602	array unset _settings $dataobj-*
603	set changed 1
604	}
605	# If anything changed, then rebuild the plot
606	if { $changed } {
607	$_dispatcher event -idle !rebuild
608	}
609	}
610
611	# ----------------------------------------------------------------------
612	# USAGE: get ?-objects?
613	# USAGE: get ?-visible?
614	# USAGE: get ?-image view?
615	#
616	# Clients use this to query the list of objects being plotted, in
617	# order from bottom to top of this result. The optional "-image"
618	# flag can also request the internal images being shown.
619	# ----------------------------------------------------------------------
620	itcl::body Rappture::VtkStreamlinesViewer::get {args} {
621	if {[llength $args] == 0} {
622	set args "-objects"
623	}
624
625	set op [lindex $args 0]
626	switch -- $op {
627	"-objects" {
628	# put the dataobj list in order according to -raise options
629	set dlist {}
630	foreach dataobj $_dlist {
631	if { ![IsValidObject $dataobj] } {
632	continue
633	}
634	if {[info exists _obj2ovride($dataobj-raise)] &&
635	$_obj2ovride($dataobj-raise)} {
636	set dlist [linsert $dlist 0 $dataobj]
637	} else {
638	lappend dlist $dataobj
639	}
640	}
641	return $dlist
642	}
643	"-visible" {
644	set dlist {}
645	foreach dataobj $_dlist {
646	if { ![IsValidObject $dataobj] } {
647	continue
648	}
649	if { ![info exists _obj2ovride($dataobj-raise)] } {
650	# No setting indicates that the object isn't visible.
651	continue
652	}
653	# Otherwise use the -raise parameter to put the object to
654	# the front of the list.
655	if { $_obj2ovride($dataobj-raise) } {
656	set dlist [linsert $dlist 0 $dataobj]
657	} else {
658	lappend dlist $dataobj
659	}
660	}
661	return $dlist
662	}
663	-image {
664	if {[llength $args] != 2} {
665	error "wrong # args: should be \"get -image view\""
666	}
667	switch -- [lindex $args end] {
668	view {
669	return $_image(plot)
670	}
671	default {
672	error "bad image name \"[lindex $args end]\": should be view"
673	}
674	}
675	}
676	default {
677	error "bad option \"$op\": should be -objects or -image"
678	}
679	}
680	}
681
682	# ----------------------------------------------------------------------
683	# USAGE: scale ?<data1> <data2> ...?
684	#
685	# Sets the default limits for the overall plot according to the
686	# limits of the data for all of the given <data> objects. This
687	# accounts for all objects--even those not showing on the screen.
688	# Because of this, the limits are appropriate for all objects as
689	# the user scans through data in the ResultSet viewer.
690	# ----------------------------------------------------------------------
691	itcl::body Rappture::VtkStreamlinesViewer::scale {args} {
692	foreach dataobj $args {
693	foreach axis { x y z } {
694	set lim [$dataobj limits $axis]
695	if { ![info exists _limits($axis)] } {
696	set _limits($axis) $lim
697	continue
698	}
699	foreach {min max} $lim break
700	foreach {amin amax} $_limits($axis) break
701	if { $amin > $min } {
702	set amin $min
703	}
704	if { $amax < $max } {
705	set amax $max
706	}
707	set _limits($axis) [list $amin $amax]
708	}
709	foreach { fname lim } [$dataobj fieldlimits] {
710	if { ![info exists _limits($fname)] } {
711	set _limits($fname) $lim
712	continue
713	}
714	foreach {min max} $lim break
715	foreach {fmin fmax} $_limits($fname) break
716	if { $fmin > $min } {
717	set fmin $min
718	}
719	if { $fmax < $max } {
720	set fmax $max
721	}
722	set _limits($fname) [list $fmin $fmax]
723	}
724	}
725	}
726
727	# ----------------------------------------------------------------------
728	# USAGE: download coming
729	# USAGE: download controls <downloadCommand>
730	# USAGE: download now
731	#
732	# Clients use this method to create a downloadable representation
733	# of the plot. Returns a list of the form {ext string}, where
734	# "ext" is the file extension (indicating the type of data) and
735	# "string" is the data itself.
736	# ----------------------------------------------------------------------
737	itcl::body Rappture::VtkStreamlinesViewer::download {option args} {
738	switch $option {
739	coming {
740	if {[catch {
741	blt::winop snap $itk_component(plotarea) $_image(download)
742	}]} {
743	$_image(download) configure -width 1 -height 1
744	$_image(download) put #000000
745	}
746	}
747	controls {
748	set popup .vtkviewerdownload
749	if { ![winfo exists .vtkviewerdownload] } {
750	set inner [BuildDownloadPopup $popup [lindex $args 0]]
751	} else {
752	set inner [$popup component inner]
753	}
754	set _downloadPopup(image_controls) $inner.image_frame
755	set num [llength [get]]
756	set num [expr {($num == 1) ? "1 result" : "$num results"}]
757	set word [Rappture::filexfer::label downloadWord]
758	$inner.summary configure -text "$word $num in the following format:"
759	update idletasks ;# Fix initial sizes
760	return $popup
761	}
762	now {
763	set popup .vtkviewerdownload
764	if {[winfo exists .vtkviewerdownload]} {
765	$popup deactivate
766	}
767	switch -- $_downloadPopup(format) {
768	"image" {
769	return [$this GetImage [lindex $args 0]]
770	}
771	"vtk" {
772	return [$this GetVtkData [lindex $args 0]]
773	}
774	}
775	return ""
776	}
777	default {
778	error "bad option \"$option\": should be coming, controls, now"
779	}
780	}
781	}
782
783	# ----------------------------------------------------------------------
784	# USAGE: Connect ?<host:port>,<host:port>...?
785	#
786	# Clients use this method to establish a connection to a new
787	# server, or to reestablish a connection to the previous server.
788	# Any existing connection is automatically closed.
789	# ----------------------------------------------------------------------
790	itcl::body Rappture::VtkStreamlinesViewer::Connect {} {
791	set _hosts [GetServerList "vtkvis"]
792	if { "" == $_hosts } {
793	return 0
794	}
795	set result [VisViewer::Connect $_hosts]
796	if { $result } {
797	if { $_reportClientInfo } {
798	# Tell the server the viewer, hub, user and session.
799	# Do this immediately on connect before buffing any commands
800	global env
801
802	set info {}
803	set user "???"
804	if { [info exists env(USER)] } {
805	set user $env(USER)
806	}
807	set session "???"
808	if { [info exists env(SESSION)] } {
809	set session $env(SESSION)
810	}
811	lappend info "hub" [exec hostname]
812	lappend info "client" "vtkstreamlinesviewer"
813	lappend info "user" $user
814	lappend info "session" $session
815	SendCmd "clientinfo [list $info]"
816	}
817
818	set w [winfo width $itk_component(view)]
819	set h [winfo height $itk_component(view)]
820	EventuallyResize $w $h
821	}
822	return $result
823	}
824
825	#
826	# isconnected --
827	#
828	# Indicates if we are currently connected to the visualization server.
829	#
830	itcl::body Rappture::VtkStreamlinesViewer::isconnected {} {
831	return [VisViewer::IsConnected]
832	}
833
834	#
835	# disconnect --
836	#
837	itcl::body Rappture::VtkStreamlinesViewer::disconnect {} {
838	Disconnect
839	set _reset 1
840	}
841
842	#
843	# Disconnect --
844	#
845	# Clients use this method to disconnect from the current rendering
846	# server.
847	#
848	itcl::body Rappture::VtkStreamlinesViewer::Disconnect {} {
849	VisViewer::Disconnect
850
851	$_dispatcher cancel !rebuild
852	$_dispatcher cancel !resize
853	$_dispatcher cancel !reseed
854	$_dispatcher cancel !rotate
855	$_dispatcher cancel !xcutplane
856	$_dispatcher cancel !ycutplane
857	$_dispatcher cancel !zcutplane
858	$_dispatcher cancel !legend
859	# disconnected -- no more data sitting on server
860	array unset _datasets
861	array unset _data
862	array unset _colormaps
863	array unset _seeds
864	array unset _dataset2style
865	array unset _obj2datasets
866	}
867
868	# ----------------------------------------------------------------------
869	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
870	#
871	# Invoked automatically whenever the "image" command comes in from
872	# the rendering server. Indicates that binary image data with the
873	# specified <size> will follow.
874	# ----------------------------------------------------------------------
875	itcl::body Rappture::VtkStreamlinesViewer::ReceiveImage { args } {
876	array set info {
877	-token "???"
878	-bytes 0
879	-type image
880	}
881	array set info $args
882	set bytes [ReceiveBytes $info(-bytes)]
883	if { $info(-type) == "image" } {
884	if 0 {
885	set f [open "last.ppm" "w"]
886	puts $f $bytes
887	close $f
888	}
889	$_image(plot) configure -data $bytes
890	set time [clock seconds]
891	set date [clock format $time]
892	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
893	if { $_start > 0 } {
894	set finish [clock clicks -milliseconds]
895	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
896	set _start 0
897	}
898	} elseif { $info(type) == "print" } {
899	set tag $this-print-$info(-token)
900	set _hardcopy($tag) $bytes
901	}
902	if { $_legendPending } {
903	RequestLegend
904	}
905	}
906
907	#
908	# ReceiveDataset --
909	#
910	itcl::body Rappture::VtkStreamlinesViewer::ReceiveDataset { args } {
911	if { ![isconnected] } {
912	return
913	}
914	set option [lindex $args 0]
915	switch -- $option {
916	"scalar" {
917	set option [lindex $args 1]
918	switch -- $option {
919	"world" {
920	foreach { x y z value tag } [lrange $args 2 end] break
921	}
922	"pixel" {
923	foreach { x y value tag } [lrange $args 2 end] break
924	}
925	}
926	}
927	"vector" {
928	set option [lindex $args 1]
929	switch -- $option {
930	"world" {
931	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
932	}
933	"pixel" {
934	foreach { x y vx vy vz tag } [lrange $args 2 end] break
935	}
936	}
937	}
938	"names" {
939	foreach { name } [lindex $args 1] {
940	#puts stderr "Dataset: $name"
941	}
942	}
943	default {
944	error "unknown dataset option \"$option\" from server"
945	}
946	}
947	}
948
949	# ----------------------------------------------------------------------
950	# USAGE: Rebuild
951	#
952	# Called automatically whenever something changes that affects the
953	# data in the widget. Clears any existing data and rebuilds the
954	# widget to display new data.
955	# ----------------------------------------------------------------------
956	itcl::body Rappture::VtkStreamlinesViewer::Rebuild {} {
957	update
958	set w [winfo width $itk_component(view)]
959	set h [winfo height $itk_component(view)]
960	if { $w < 2 \|\| $h < 2 } {
961	$_dispatcher event -idle !rebuild
962	return
963	}
964
965	# Turn on buffering of commands to the server. We don't want to
966	# be preempted by a server disconnect/reconnect (which automatically
967	# generates a new call to Rebuild).
968	StartBufferingCommands
969	set _legendPending 1
970
971	set _first ""
972	if { $_reset } {
973	set _width $w
974	set _height $h
975	$_arcball resize $w $h
976	DoResize
977	InitSettings axisXGrid axisYGrid axisZGrid axis-mode \
978	axesVisible axisLabelsVisible
979	# This "imgflush" is to force an image returned before vtkvis starts
980	# reading a (big) dataset. This will display an empty plot with axes
981	# at the correct image size.
982	SendCmd "imgflush"
983	}
984
985	set _first ""
986	SendCmd "dataset visible 0"
987	foreach dataobj [get -objects] {
988	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
989	set _first $dataobj
990	}
991	set _obj2datasets($dataobj) ""
992	foreach comp [$dataobj components] {
993	set tag $dataobj-$comp
994	if { ![info exists _datasets($tag)] } {
995	set bytes [$dataobj vtkdata $comp]
996	set length [string length $bytes]
997	if 0 {
998	set f [open /tmp/vtkstreamlines.vtk "w"]
999	fconfigure $f -translation binary -encoding binary
1000	puts $f $bytes
1001	close $f
1002	}
1003	if { $_reportClientInfo } {
1004	set info {}
1005	lappend info "tool_id" [$dataobj hints toolId]
1006	lappend info "tool_name" [$dataobj hints toolName]
1007	lappend info "tool_version" [$dataobj hints toolRevision]
1008	lappend info "tool_title" [$dataobj hints toolTitle]
1009	lappend info "dataset_label" [$dataobj hints label]
1010	lappend info "dataset_size" $length
1011	lappend info "dataset_tag" $tag
1012	SendCmd "clientinfo [list $info]"
1013	}
1014	SendCmd "dataset add $tag data follows $length"
1015	append _outbuf $bytes
1016	set _datasets($tag) 1
1017	SetObjectStyle $dataobj $comp
1018	}
1019	lappend _obj2datasets($dataobj) $tag
1020	if { [info exists _obj2ovride($dataobj-raise)] } {
1021	SendCmd "dataset visible 1 $tag"
1022	}
1023	}
1024	}
1025	if {"" != $_first} {
1026	set location [$_first hints camera]
1027	if { $location != "" } {
1028	array set view $location
1029	}
1030	foreach axis { x y z } {
1031	set label [$_first hints ${axis}label]
1032	if { $label != "" } {
1033	SendCmd "axis name $axis $label"
1034	}
1035	set units [$_first hints ${axis}units]
1036	if { $units != "" } {
1037	SendCmd "axis units $axis $units"
1038	}
1039	}
1040	$itk_component(field) choices delete 0 end
1041	$itk_component(fieldmenu) delete 0 end
1042	array unset _fields
1043	set _curFldName ""
1044	foreach cname [$_first components] {
1045	foreach fname [$_first fieldnames $cname] {
1046	if { [info exists _fields($fname)] } {
1047	continue
1048	}
1049	foreach { label units components } \
1050	[$_first fieldinfo $fname] break
1051	$itk_component(field) choices insert end "$fname" "$label"
1052	$itk_component(fieldmenu) add radiobutton -label "$label" \
1053	-value $label -variable [itcl::scope _curFldLabel] \
1054	-selectcolor red \
1055	-activebackground $itk_option(-plotbackground) \
1056	-activeforeground $itk_option(-plotforeground) \
1057	-font "Arial 8" \
1058	-command [itcl::code $this Combo invoke]
1059	set _fields($fname) [list $label $units $components]
1060	if { $_curFldName == "" } {
1061	set _curFldName $fname
1062	set _curFldLabel $label
1063	}
1064	}
1065	}
1066	$itk_component(field) value $_curFldLabel
1067	}
1068
1069	if { $_reset } {
1070	InitSettings streamlinesSeedsVisible streamlinesOpacity \
1071	streamlinesVisible streamlinesColormap \
1072	streamlinesLighting \
1073	streamlinesColormap field \
1074	volumeVisible volumeEdges volumeLighting volumeOpacity \
1075	volumeWireframe \
1076	cutplaneVisible \
1077	cutplaneXPosition cutplaneYPosition cutplaneZPosition \
1078	cutplaneXVisible cutplaneYVisible cutplaneZVisible
1079
1080	# Reset the camera and other view parameters
1081	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1082	$_arcball quaternion $q
1083	if {$_view(ortho)} {
1084	SendCmd "camera mode ortho"
1085	} else {
1086	SendCmd "camera mode persp"
1087	}
1088	DoRotate
1089	PanCamera
1090	Zoom reset
1091	SendCmd "camera reset"
1092	set _reset 0
1093	}
1094	# Actually write the commands to the server socket. If it fails, we don't
1095	# care. We're finished here.
1096	blt::busy hold $itk_component(hull)
1097	StopBufferingCommands
1098	blt::busy release $itk_component(hull)
1099	}
1100
1101	# ----------------------------------------------------------------------
1102	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1103	#
1104	# Returns a list of server IDs for the current datasets being displayed. This
1105	# is normally a single ID, but it might be a list of IDs if the current data
1106	# object has multiple components.
1107	# ----------------------------------------------------------------------
1108	itcl::body Rappture::VtkStreamlinesViewer::CurrentDatasets {args} {
1109	set flag [lindex $args 0]
1110	switch -- $flag {
1111	"-all" {
1112	if { [llength $args] > 1 } {
1113	error "CurrentDatasets: can't specify dataobj after \"-all\""
1114	}
1115	set dlist [get -objects]
1116	}
1117	"-visible" {
1118	if { [llength $args] > 1 } {
1119	set dlist {}
1120	set args [lrange $args 1 end]
1121	foreach dataobj $args {
1122	if { [info exists _obj2ovride($dataobj-raise)] } {
1123	lappend dlist $dataobj
1124	}
1125	}
1126	} else {
1127	set dlist [get -visible]
1128	}
1129	}
1130	default {
1131	set dlist $args
1132	}
1133	}
1134	set rlist ""
1135	foreach dataobj $dlist {
1136	foreach comp [$dataobj components] {
1137	set tag $dataobj-$comp
1138	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1139	lappend rlist $tag
1140	}
1141	}
1142	}
1143	return $rlist
1144	}
1145
1146	# ----------------------------------------------------------------------
1147	# USAGE: Zoom in
1148	# USAGE: Zoom out
1149	# USAGE: Zoom reset
1150	#
1151	# Called automatically when the user clicks on one of the zoom
1152	# controls for this widget. Changes the zoom for the current view.
1153	# ----------------------------------------------------------------------
1154	itcl::body Rappture::VtkStreamlinesViewer::Zoom {option} {
1155	switch -- $option {
1156	"in" {
1157	set _view(zoom) [expr {$_view(zoom)*1.25}]
1158	SendCmd "camera zoom $_view(zoom)"
1159	}
1160	"out" {
1161	set _view(zoom) [expr {$_view(zoom)*0.8}]
1162	SendCmd "camera zoom $_view(zoom)"
1163	}
1164	"reset" {
1165	array set _view {
1166	qw 0.853553
1167	qx -0.353553
1168	qy 0.353553
1169	qz 0.146447
1170	zoom 1.0
1171	xpan 0
1172	ypan 0
1173	}
1174	if { $_first != "" } {
1175	set location [$_first hints camera]
1176	if { $location != "" } {
1177	array set _view $location
1178	}
1179	}
1180	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1181	$_arcball quaternion $q
1182	DoRotate
1183	SendCmd "camera reset"
1184	}
1185	}
1186	}
1187
1188	itcl::body Rappture::VtkStreamlinesViewer::PanCamera {} {
1189	set x $_view(xpan)
1190	set y $_view(ypan)
1191	SendCmd "camera pan $x $y"
1192	}
1193
1194
1195	# ----------------------------------------------------------------------
1196	# USAGE: Rotate click <x> <y>
1197	# USAGE: Rotate drag <x> <y>
1198	# USAGE: Rotate release <x> <y>
1199	#
1200	# Called automatically when the user clicks/drags/releases in the
1201	# plot area. Moves the plot according to the user's actions.
1202	# ----------------------------------------------------------------------
1203	itcl::body Rappture::VtkStreamlinesViewer::Rotate {option x y} {
1204	switch -- $option {
1205	"click" {
1206	$itk_component(view) configure -cursor fleur
1207	set _click(x) $x
1208	set _click(y) $y
1209	}
1210	"drag" {
1211	if {[array size _click] == 0} {
1212	Rotate click $x $y
1213	} else {
1214	set w [winfo width $itk_component(view)]
1215	set h [winfo height $itk_component(view)]
1216	if {$w <= 0 \|\| $h <= 0} {
1217	return
1218	}
1219
1220	if {[catch {
1221	# this fails sometimes for no apparent reason
1222	set dx [expr {double($x-$_click(x))/$w}]
1223	set dy [expr {double($y-$_click(y))/$h}]
1224	}]} {
1225	return
1226	}
1227	if { $dx == 0 && $dy == 0 } {
1228	return
1229	}
1230	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1231	EventuallyRotate $q
1232	set _click(x) $x
1233	set _click(y) $y
1234	}
1235	}
1236	"release" {
1237	Rotate drag $x $y
1238	$itk_component(view) configure -cursor ""
1239	catch {unset _click}
1240	}
1241	default {
1242	error "bad option \"$option\": should be click, drag, release"
1243	}
1244	}
1245	}
1246
1247	itcl::body Rappture::VtkStreamlinesViewer::Pick {x y} {
1248	foreach tag [CurrentDatasets -visible] {
1249	SendCmdNoWait "dataset getscalar pixel $x $y $tag"
1250	}
1251	}
1252
1253	# ----------------------------------------------------------------------
1254	# USAGE: $this Pan click x y
1255	# $this Pan drag x y
1256	# $this Pan release x y
1257	#
1258	# Called automatically when the user clicks on one of the zoom
1259	# controls for this widget. Changes the zoom for the current view.
1260	# ----------------------------------------------------------------------
1261	itcl::body Rappture::VtkStreamlinesViewer::Pan {option x y} {
1262	switch -- $option {
1263	"set" {
1264	set w [winfo width $itk_component(view)]
1265	set h [winfo height $itk_component(view)]
1266	set x [expr $x / double($w)]
1267	set y [expr $y / double($h)]
1268	set _view(xpan) [expr $_view(xpan) + $x]
1269	set _view(ypan) [expr $_view(ypan) + $y]
1270	PanCamera
1271	return
1272	}
1273	"click" {
1274	set _click(x) $x
1275	set _click(y) $y
1276	$itk_component(view) configure -cursor hand1
1277	}
1278	"drag" {
1279	if { ![info exists _click(x)] } {
1280	set _click(x) $x
1281	}
1282	if { ![info exists _click(y)] } {
1283	set _click(y) $y
1284	}
1285	set w [winfo width $itk_component(view)]
1286	set h [winfo height $itk_component(view)]
1287	set dx [expr ($_click(x) - $x)/double($w)]
1288	set dy [expr ($_click(y) - $y)/double($h)]
1289	set _click(x) $x
1290	set _click(y) $y
1291	set _view(xpan) [expr $_view(xpan) - $dx]
1292	set _view(ypan) [expr $_view(ypan) - $dy]
1293	PanCamera
1294	}
1295	"release" {
1296	Pan drag $x $y
1297	$itk_component(view) configure -cursor ""
1298	}
1299	default {
1300	error "unknown option \"$option\": should set, click, drag, or release"
1301	}
1302	}
1303	}
1304
1305	# ----------------------------------------------------------------------
1306	# USAGE: InitSettings <what> ?<value>?
1307	#
1308	# Used internally to update rendering settings whenever parameters
1309	# change in the popup settings panel. Sends the new settings off
1310	# to the back end.
1311	# ----------------------------------------------------------------------
1312	itcl::body Rappture::VtkStreamlinesViewer::InitSettings { args } {
1313	foreach spec $args {
1314	if { [info exists _settings($_first-$spec)] } {
1315	# Reset global setting with dataobj specific setting
1316	set _settings($spec) $_settings($_first-$spec)
1317	}
1318	AdjustSetting $spec
1319	}
1320	}
1321
1322	#
1323	# AdjustSetting --
1324	#
1325	# Changes/updates a specific setting in the widget. There are
1326	# usually user-setable option. Commands are sent to the render
1327	# server.
1328	#
1329	itcl::body Rappture::VtkStreamlinesViewer::AdjustSetting {what {value ""}} {
1330	if { ![isconnected] } {
1331	return
1332	}
1333	switch -- $what {
1334	"volumeOpacity" {
1335	set val $_settings(volumeOpacity)
1336	set sval [expr { 0.01 * double($val) }]
1337	SendCmd "polydata opacity $sval"
1338	}
1339	"volumeWireframe" {
1340	set bool $_settings(volumeWireframe)
1341	SendCmd "polydata wireframe $bool"
1342	}
1343	"volumeVisible" {
1344	set bool $_settings(volumeVisible)
1345	SendCmd "polydata visible $bool"
1346	if { $bool } {
1347	Rappture::Tooltip::for $itk_component(volume) \
1348	"Hide the volume"
1349	} else {
1350	Rappture::Tooltip::for $itk_component(volume) \
1351	"Show the volume"
1352	}
1353	}
1354	"volumeLighting" {
1355	set bool $_settings(volumeLighting)
1356	SendCmd "polydata lighting $bool"
1357	}
1358	"volumeEdges" {
1359	set bool $_settings(volumeEdges)
1360	SendCmd "polydata edges $bool"
1361	}
1362	"axesVisible" {
1363	set bool $_settings(axesVisible)
1364	SendCmd "axis visible all $bool"
1365	}
1366	"axisLabelsVisible" {
1367	set bool $_settings(axisLabelsVisible)
1368	SendCmd "axis labels all $bool"
1369	}
1370	"axisXGrid" - "axisYGrid" - "axisZGrid" {
1371	set axis [string tolower [string range $what 4 4]]
1372	set bool $_settings($what)
1373	SendCmd "axis grid $axis $bool"
1374	}
1375	"axis-mode" {
1376	set mode [$itk_component(axismode) value]
1377	set mode [$itk_component(axismode) translate $mode]
1378	set _settings($what) $mode
1379	SendCmd "axis flymode $mode"
1380	}
1381	"cutplaneEdges" {
1382	set bool $_settings($what)
1383	SendCmd "cutplane edges $bool"
1384	}
1385	"cutplaneVisible" {
1386	set bool $_settings($what)
1387	SendCmd "cutplane visible $bool"
1388	}
1389	"cutplaneWireframe" {
1390	set bool $_settings($what)
1391	SendCmd "cutplane wireframe $bool"
1392	}
1393	"cutplaneLighting" {
1394	set bool $_settings($what)
1395	SendCmd "cutplane lighting $bool"
1396	}
1397	"cutplaneOpacity" {
1398	set val $_settings($what)
1399	set sval [expr { 0.01 * double($val) }]
1400	SendCmd "cutplane opacity $sval"
1401	}
1402	"cutplaneXVisible" - "cutplaneYVisible" - "cutplaneZVisible" {
1403	set axis [string tolower [string range $what 8 8]]
1404	set bool $_settings($what)
1405	if { $bool } {
1406	$itk_component(${axis}CutScale) configure -state normal \
1407	-troughcolor white
1408	} else {
1409	$itk_component(${axis}CutScale) configure -state disabled \
1410	-troughcolor grey82
1411	}
1412	SendCmd "cutplane axis $axis $bool"
1413	}
1414	"cutplaneXPosition" - "cutplaneYPosition" - "cutplaneZPosition" {
1415	set axis [string tolower [string range $what 8 8]]
1416	set pos [expr $_settings($what) * 0.01]
1417	SendCmd "cutplane slice ${axis} ${pos}"
1418	set _cutplanePending 0
1419	}
1420	"streamlinesSeedsVisible" {
1421	set bool $_settings($what)
1422	SendCmd "streamlines seed visible $bool"
1423	}
1424	"streamlinesNumSeeds" {
1425	set density $_settings($what)
1426	EventuallyReseed $density
1427	}
1428	"streamlinesVisible" {
1429	set bool $_settings($what)
1430	SendCmd "streamlines visible $bool"
1431	if { $bool } {
1432	Rappture::Tooltip::for $itk_component(streamlines) \
1433	"Hide the streamlines"
1434	} else {
1435	Rappture::Tooltip::for $itk_component(streamlines) \
1436	"Show the streamlines"
1437	}
1438	}
1439	"streamlinesMode" {
1440	set mode [$itk_component(streammode) value]
1441	set _settings(streamlinesMode) $mode
1442	switch -- $mode {
1443	"lines" {
1444	SendCmd "streamlines lines"
1445	}
1446	"ribbons" {
1447	SendCmd "streamlines ribbons 3 0"
1448	}
1449	"tubes" {
1450	SendCmd "streamlines tubes 5 3"
1451	}
1452	}
1453	}
1454	"streamlinesColormap" {
1455	set colormap [$itk_component(colormap) value]
1456	set _settings(streamlinesColormap) $colormap
1457	foreach dataset [CurrentDatasets -visible $_first] {
1458	foreach {dataobj comp} [split $dataset -] break
1459	ChangeColormap $dataobj $comp $colormap
1460	}
1461	set _legendPending 1
1462	}
1463	"streamlinesOpacity" {
1464	set val $_settings(streamlinesOpacity)
1465	set sval [expr { 0.01 * double($val) }]
1466	SendCmd "streamlines opacity $sval"
1467	}
1468	"streamlinesScale" {
1469	set val $_settings(streamlinesScale)
1470	set sval [expr { 0.01 * double($val) }]
1471	SendCmd "streamlines scale $sval $sval $sval"
1472	}
1473	"streamlinesLighting" {
1474	set bool $_settings(streamlinesLighting)
1475	SendCmd "streamlines lighting $bool"
1476	}
1477	"field" {
1478	set label [$itk_component(field) value]
1479	set fname [$itk_component(field) translate $label]
1480	set _settings(field) $fname
1481	if { [info exists _fields($fname)] } {
1482	foreach { label units components } $_fields($fname) break
1483	if { $components > 1 } {
1484	set _colorMode vmag
1485	} else {
1486	set _colorMode scalar
1487	}
1488	set _curFldName $fname
1489	set _curFldLabel $label
1490	} else {
1491	puts stderr "unknown field \"$fname\""
1492	return
1493	}
1494	# Get the new limits because the field changed.
1495	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1496	SendCmd "streamlines colormode $_colorMode $_curFldName"
1497	SendCmd "cutplane colormode $_colorMode $_curFldName"
1498	DrawLegend
1499	}
1500	default {
1501	error "don't know how to fix $what"
1502	}
1503	}
1504	}
1505
1506	#
1507	# RequestLegend --
1508	#
1509	# Request a new legend from the server. The size of the legend
1510	# is determined from the height of the canvas. It will be rotated
1511	# to be vertical when drawn.
1512	#
1513	itcl::body Rappture::VtkStreamlinesViewer::RequestLegend {} {
1514	set font "Arial 8"
1515	set lineht [font metrics $font -linespace]
1516	set c $itk_component(legend)
1517	set w 12
1518	set h [expr {$_height - 3 * ($lineht + 2)}]
1519	if { $h < 1} {
1520	return
1521	}
1522	# Set the legend on the first streamlines dataset.
1523	foreach dataset [CurrentDatasets -visible $_first] {
1524	foreach {dataobj comp} [split $dataset -] break
1525	if { [info exists _dataset2style($dataset)] } {
1526	SendCmdNoWait \
1527	"legend $_dataset2style($dataset) $_colorMode $_curFldName {} $w $h 0"
1528	break;
1529	}
1530	}
1531	}
1532
1533	#
1534	# ChangeColormap --
1535	#
1536	itcl::body Rappture::VtkStreamlinesViewer::ChangeColormap {dataobj comp color} {
1537	set tag $dataobj-$comp
1538	if { ![info exist _style($tag)] } {
1539	error "no initial colormap"
1540	}
1541	array set style $_style($tag)
1542	set style(-color) $color
1543	set _style($tag) [array get style]
1544	SetColormap $dataobj $comp
1545	}
1546
1547	#
1548	# SetColormap --
1549	#
1550	itcl::body Rappture::VtkStreamlinesViewer::SetColormap { dataobj comp } {
1551	array set style {
1552	-color BCGYR
1553	-levels 6
1554	-opacity 1.0
1555	}
1556	set tag $dataobj-$comp
1557	if { ![info exists _initialStyle($tag)] } {
1558	# Save the initial component style.
1559	set _initialStyle($tag) [$dataobj style $comp]
1560	}
1561
1562	# Override defaults with initial style defined in xml.
1563	array set style $_initialStyle($tag)
1564
1565	if { ![info exists _style($tag)] } {
1566	set _style($tag) [array get style]
1567	}
1568	# Override initial style with current style.
1569	array set style $_style($tag)
1570
1571	set name "$style(-color):$style(-levels):$style(-opacity)"
1572	if { ![info exists _colormaps($name)] } {
1573	BuildColormap $name [array get style]
1574	set _colormaps($name) 1
1575	}
1576	if { ![info exists _dataset2style($tag)] \|\|
1577	$_dataset2style($tag) != $name } {
1578	SendCmd "streamlines colormap $name $tag"
1579	SendCmd "cutplane colormap $name $tag"
1580	set _dataset2style($tag) $name
1581	}
1582	}
1583
1584
1585	#
1586	# BuildColormap --
1587	#
1588	itcl::body Rappture::VtkStreamlinesViewer::BuildColormap { name styles } {
1589	array set style $styles
1590	set cmap [ColorsToColormap $style(-color)]
1591	if { [llength $cmap] == 0 } {
1592	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1593	}
1594	if { ![info exists _settings(volumeOpacity)] } {
1595	set _settings(volumeOpacity) $style(-opacity)
1596	}
1597	set max $_settings(volumeOpacity)
1598
1599	set wmap "0.0 1.0 1.0 1.0"
1600	SendCmd "colormap add $name { $cmap } { $wmap }"
1601	}
1602
1603	# ----------------------------------------------------------------------
1604	# CONFIGURATION OPTION: -plotbackground
1605	# ----------------------------------------------------------------------
1606	itcl::configbody Rappture::VtkStreamlinesViewer::plotbackground {
1607	if { [isconnected] } {
1608	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
1609	SendCmd "screen bgcolor $r $g $b"
1610	}
1611	}
1612
1613	# ----------------------------------------------------------------------
1614	# CONFIGURATION OPTION: -plotforeground
1615	# ----------------------------------------------------------------------
1616	itcl::configbody Rappture::VtkStreamlinesViewer::plotforeground {
1617	if { [isconnected] } {
1618	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
1619	#fix this!
1620	#SendCmd "color background $r $g $b"
1621	}
1622	}
1623
1624	itcl::body Rappture::VtkStreamlinesViewer::BuildVolumeTab {} {
1625
1626	set fg [option get $itk_component(hull) font Font]
1627	#set bfg [option get $itk_component(hull) boldFont Font]
1628
1629	set inner [$itk_component(main) insert end \
1630	-title "Volume Settings" \
1631	-icon [Rappture::icon volume-on]]
1632	$inner configure -borderwidth 4
1633
1634	checkbutton $inner.volume \
1635	-text "Show Volume" \
1636	-variable [itcl::scope _settings(volumeVisible)] \
1637	-command [itcl::code $this AdjustSetting volumeVisible] \
1638	-font "Arial 9"
1639
1640	checkbutton $inner.wireframe \
1641	-text "Show Wireframe" \
1642	-variable [itcl::scope _settings(volumeWireframe)] \
1643	-command [itcl::code $this AdjustSetting volumeWireframe] \
1644	-font "Arial 9"
1645
1646	checkbutton $inner.lighting \
1647	-text "Enable Lighting" \
1648	-variable [itcl::scope _settings(volumeLighting)] \
1649	-command [itcl::code $this AdjustSetting volumeLighting] \
1650	-font "Arial 9"
1651
1652	checkbutton $inner.edges \
1653	-text "Show Edges" \
1654	-variable [itcl::scope _settings(volumeEdges)] \
1655	-command [itcl::code $this AdjustSetting volumeEdges] \
1656	-font "Arial 9"
1657
1658	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1659	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1660	-variable [itcl::scope _settings(volumeOpacity)] \
1661	-width 10 \
1662	-showvalue off \
1663	-command [itcl::code $this AdjustSetting volumeOpacity]
1664
1665	blt::table $inner \
1666	0,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1667	1,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1668	2,0 $inner.edges -anchor w -pady 2 -cspan 3 \
1669	3,0 $inner.opacity_l -anchor w -pady 2 \
1670	3,1 $inner.opacity -fill x -pady 2
1671
1672	blt::table configure $inner r* c* -resize none
1673	blt::table configure $inner r4 c1 -resize expand
1674	}
1675
1676
1677	itcl::body Rappture::VtkStreamlinesViewer::BuildStreamsTab {} {
1678
1679	set fg [option get $itk_component(hull) font Font]
1680	#set bfg [option get $itk_component(hull) boldFont Font]
1681
1682	set inner [$itk_component(main) insert end \
1683	-title "Streams Settings" \
1684	-icon [Rappture::icon streamlines-on]]
1685	$inner configure -borderwidth 4
1686
1687	checkbutton $inner.streamlines \
1688	-text "Show Streamlines" \
1689	-variable [itcl::scope _settings(streamlinesVisible)] \
1690	-command [itcl::code $this AdjustSetting streamlinesVisible] \
1691	-font "Arial 9"
1692
1693	checkbutton $inner.lighting \
1694	-text "Enable Lighting" \
1695	-variable [itcl::scope _settings(streamlinesLighting)] \
1696	-command [itcl::code $this AdjustSetting streamlinesLighting] \
1697	-font "Arial 9"
1698
1699	checkbutton $inner.seeds \
1700	-text "Show Seeds" \
1701	-variable [itcl::scope _settings(streamlinesSeedsVisible)] \
1702	-command [itcl::code $this AdjustSetting streamlinesSeedsVisible] \
1703	-font "Arial 9"
1704
1705	label $inner.mode_l -text "Mode" -font "Arial 9"
1706	itk_component add streammode {
1707	Rappture::Combobox $inner.mode -width 10 -editable no
1708	}
1709	$inner.mode choices insert end \
1710	"lines" "lines" \
1711	"ribbons" "ribbons" \
1712	"tubes" "tubes"
1713	$itk_component(streammode) value $_settings(streamlinesMode)
1714	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting streamlinesMode]
1715
1716	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1717	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1718	-variable [itcl::scope _settings(streamlinesOpacity)] \
1719	-width 10 \
1720	-showvalue off \
1721	-command [itcl::code $this AdjustSetting streamlinesOpacity]
1722
1723	label $inner.density_l -text "No. Seeds" -font "Arial 9"
1724	::scale $inner.density -from 1 -to 1000 -orient horizontal \
1725	-variable [itcl::scope _settings(streamlinesNumSeeds)] \
1726	-width 10 \
1727	-showvalue on \
1728	-command [itcl::code $this AdjustSetting streamlinesNumSeeds]
1729
1730	label $inner.scale_l -text "Scale" -font "Arial 9"
1731	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1732	-variable [itcl::scope _settings(streamlinesScale)] \
1733	-width 10 \
1734	-showvalue off \
1735	-command [itcl::code $this AdjustSetting streamlinesScale]
1736
1737	label $inner.field_l -text "Color by" -font "Arial 9"
1738	itk_component add field {
1739	Rappture::Combobox $inner.field -width 10 -editable no
1740	}
1741	bind $inner.field <<Value>> \
1742	[itcl::code $this AdjustSetting field]
1743
1744	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1745	itk_component add colormap {
1746	Rappture::Combobox $inner.colormap -width 10 -editable no
1747	}
1748	$inner.colormap choices insert end \
1749	"BCGYR" "BCGYR" \
1750	"BGYOR" "BGYOR" \
1751	"blue" "blue" \
1752	"blue-to-brown" "blue-to-brown" \
1753	"blue-to-orange" "blue-to-orange" \
1754	"blue-to-grey" "blue-to-grey" \
1755	"green-to-magenta" "green-to-magenta" \
1756	"greyscale" "greyscale" \
1757	"nanohub" "nanohub" \
1758	"rainbow" "rainbow" \
1759	"spectral" "spectral" \
1760	"ROYGB" "ROYGB" \
1761	"RYGCB" "RYGCB" \
1762	"brown-to-blue" "brown-to-blue" \
1763	"grey-to-blue" "grey-to-blue" \
1764	"orange-to-blue" "orange-to-blue"
1765
1766	$itk_component(colormap) value "BCGYR"
1767	bind $inner.colormap <<Value>> \
1768	[itcl::code $this AdjustSetting streamlinesColormap]
1769
1770	blt::table $inner \
1771	0,0 $inner.field_l -anchor w -pady 2 \
1772	0,1 $inner.field -fill x -pady 2 \
1773	1,0 $inner.colormap_l -anchor w -pady 2 \
1774	1,1 $inner.colormap -fill x -pady 2 \
1775	2,0 $inner.mode_l -anchor w -pady 2 \
1776	2,1 $inner.mode -fill x -pady 2 \
1777	3,0 $inner.opacity_l -anchor w -pady 2 \
1778	3,1 $inner.opacity -fill x -pady 2 \
1779	5,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1780	6,0 $inner.seeds -anchor w -pady 2 -cspan 2 \
1781	7,0 $inner.density_l -anchor w -pady 2 \
1782	7,1 $inner.density -fill x -pady 2 \
1783
1784	blt::table configure $inner r* c* -resize none
1785	blt::table configure $inner r10 c1 c2 -resize expand
1786	}
1787
1788	itcl::body Rappture::VtkStreamlinesViewer::BuildAxisTab {} {
1789
1790	set fg [option get $itk_component(hull) font Font]
1791	#set bfg [option get $itk_component(hull) boldFont Font]
1792
1793	set inner [$itk_component(main) insert end \
1794	-title "Axis Settings" \
1795	-icon [Rappture::icon axis1]]
1796	$inner configure -borderwidth 4
1797
1798	checkbutton $inner.visible \
1799	-text "Show Axes" \
1800	-variable [itcl::scope _settings(axesVisible)] \
1801	-command [itcl::code $this AdjustSetting axesVisible] \
1802	-font "Arial 9"
1803
1804	checkbutton $inner.labels \
1805	-text "Show Axis Labels" \
1806	-variable [itcl::scope _settings(axisLabelsVisible)] \
1807	-command [itcl::code $this AdjustSetting axisLabelsVisible] \
1808	-font "Arial 9"
1809
1810	checkbutton $inner.xgrid \
1811	-text "Show X Grid" \
1812	-variable [itcl::scope _settings(axisXGrid)] \
1813	-command [itcl::code $this AdjustSetting axisXGrid] \
1814	-font "Arial 9"
1815	checkbutton $inner.ygrid \
1816	-text "Show Y Grid" \
1817	-variable [itcl::scope _settings(axisYGrid)] \
1818	-command [itcl::code $this AdjustSetting axisYGrid] \
1819	-font "Arial 9"
1820	checkbutton $inner.zgrid \
1821	-text "Show Z Grid" \
1822	-variable [itcl::scope _settings(axisZGrid)] \
1823	-command [itcl::code $this AdjustSetting axisZGrid] \
1824	-font "Arial 9"
1825
1826	label $inner.mode_l -text "Mode" -font "Arial 9"
1827
1828	itk_component add axismode {
1829	Rappture::Combobox $inner.mode -width 10 -editable no
1830	}
1831	$inner.mode choices insert end \
1832	"static_triad" "static" \
1833	"closest_triad" "closest" \
1834	"furthest_triad" "furthest" \
1835	"outer_edges" "outer"
1836	$itk_component(axismode) value "static"
1837	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axis-mode]
1838
1839	blt::table $inner \
1840	0,0 $inner.visible -anchor w -cspan 2 \
1841	1,0 $inner.labels -anchor w -cspan 2 \
1842	2,0 $inner.xgrid -anchor w -cspan 2 \
1843	3,0 $inner.ygrid -anchor w -cspan 2 \
1844	4,0 $inner.zgrid -anchor w -cspan 2 \
1845	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1846	6,0 $inner.mode -fill x -cspan 2
1847
1848	blt::table configure $inner r* c* -resize none
1849	blt::table configure $inner r7 c1 -resize expand
1850	}
1851
1852
1853	itcl::body Rappture::VtkStreamlinesViewer::BuildCameraTab {} {
1854	set inner [$itk_component(main) insert end \
1855	-title "Camera Settings" \
1856	-icon [Rappture::icon camera]]
1857	$inner configure -borderwidth 4
1858
1859	label $inner.view_l -text "view" -font "Arial 9"
1860	set f [frame $inner.view]
1861	foreach side { front back left right top bottom } {
1862	button $f.$side -image [Rappture::icon view$side] \
1863	-command [itcl::code $this SetOrientation $side]
1864	Rappture::Tooltip::for $f.$side "Change the view to $side"
1865	pack $f.$side -side left
1866	}
1867
1868	blt::table $inner \
1869	0,0 $inner.view_l -anchor e -pady 2 \
1870	0,1 $inner.view -anchor w -pady 2
1871
1872	set labels { qx qy qz qw xpan ypan zoom }
1873	set row 1
1874	foreach tag $labels {
1875	label $inner.${tag}label -text $tag -font "Arial 9"
1876	entry $inner.${tag} -font "Arial 9" -bg white \
1877	-textvariable [itcl::scope _view($tag)]
1878	bind $inner.${tag} <KeyPress-Return> \
1879	[itcl::code $this camera set ${tag}]
1880	blt::table $inner \
1881	$row,0 $inner.${tag}label -anchor e -pady 2 \
1882	$row,1 $inner.${tag} -anchor w -pady 2
1883	blt::table configure $inner r$row -resize none
1884	incr row
1885	}
1886	checkbutton $inner.ortho \
1887	-text "Orthographic Projection" \
1888	-variable [itcl::scope _view(ortho)] \
1889	-command [itcl::code $this camera set ortho] \
1890	-font "Arial 9"
1891	blt::table $inner \
1892	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1893	blt::table configure $inner r$row -resize none
1894	incr row
1895
1896	blt::table configure $inner c* r* -resize none
1897	blt::table configure $inner c2 -resize expand
1898	blt::table configure $inner r$row -resize expand
1899	}
1900
1901	itcl::body Rappture::VtkStreamlinesViewer::BuildCutplaneTab {} {
1902
1903	set fg [option get $itk_component(hull) font Font]
1904
1905	set inner [$itk_component(main) insert end \
1906	-title "Cutplane Settings" \
1907	-icon [Rappture::icon cutbutton]]
1908
1909	$inner configure -borderwidth 4
1910
1911	checkbutton $inner.visible \
1912	-text "Show Cutplanes" \
1913	-variable [itcl::scope _settings(cutplaneVisible)] \
1914	-command [itcl::code $this AdjustSetting cutplaneVisible] \
1915	-font "Arial 9"
1916
1917	checkbutton $inner.wireframe \
1918	-text "Show Wireframe" \
1919	-variable [itcl::scope _settings(cutplaneWireframe)] \
1920	-command [itcl::code $this AdjustSetting cutplaneWireframe] \
1921	-font "Arial 9"
1922
1923	checkbutton $inner.lighting \
1924	-text "Enable Lighting" \
1925	-variable [itcl::scope _settings(cutplaneLighting)] \
1926	-command [itcl::code $this AdjustSetting cutplaneLighting] \
1927	-font "Arial 9"
1928
1929	checkbutton $inner.edges \
1930	-text "Show Edges" \
1931	-variable [itcl::scope _settings(cutplaneEdges)] \
1932	-command [itcl::code $this AdjustSetting cutplaneEdges] \
1933	-font "Arial 9"
1934
1935	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1936	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1937	-variable [itcl::scope _settings(cutplaneOpacity)] \
1938	-width 10 \
1939	-showvalue off \
1940	-command [itcl::code $this AdjustSetting cutplaneOpacity]
1941	$inner.opacity set $_settings(cutplaneOpacity)
1942
1943	# X-value slicer...
1944	itk_component add xCutButton {
1945	Rappture::PushButton $inner.xbutton \
1946	-onimage [Rappture::icon x-cutplane-red] \
1947	-offimage [Rappture::icon x-cutplane-red] \
1948	-command [itcl::code $this AdjustSetting cutplaneXVisible] \
1949	-variable [itcl::scope _settings(cutplaneXVisible)]
1950	}
1951	Rappture::Tooltip::for $itk_component(xCutButton) \
1952	"Toggle the X-axis cutplane on/off"
1953	$itk_component(xCutButton) select
1954
1955	itk_component add xCutScale {
1956	::scale $inner.xval -from 100 -to 0 \
1957	-width 10 -orient vertical -showvalue yes \
1958	-borderwidth 1 -highlightthickness 0 \
1959	-command [itcl::code $this EventuallySetCutplane x] \
1960	-variable [itcl::scope _settings(cutplaneXPosition)] \
1961	-foreground red3 -font "Arial 9 bold"
1962	} {
1963	usual
1964	ignore -borderwidth -highlightthickness -foreground -font
1965	}
1966	# Set the default cutplane value before disabling the scale.
1967	$itk_component(xCutScale) set 50
1968	$itk_component(xCutScale) configure -state disabled
1969	Rappture::Tooltip::for $itk_component(xCutScale) \
1970	"@[itcl::code $this Slice tooltip x]"
1971
1972	# Y-value slicer...
1973	itk_component add yCutButton {
1974	Rappture::PushButton $inner.ybutton \
1975	-onimage [Rappture::icon y-cutplane-green] \
1976	-offimage [Rappture::icon y-cutplane-green] \
1977	-command [itcl::code $this AdjustSetting cutplaneYVisible] \
1978	-variable [itcl::scope _settings(cutplaneYVisible)]
1979	}
1980	Rappture::Tooltip::for $itk_component(yCutButton) \
1981	"Toggle the Y-axis cutplane on/off"
1982	$itk_component(yCutButton) select
1983
1984	itk_component add yCutScale {
1985	::scale $inner.yval -from 100 -to 0 \
1986	-width 10 -orient vertical -showvalue yes \
1987	-borderwidth 1 -highlightthickness 0 \
1988	-command [itcl::code $this EventuallySetCutplane y] \
1989	-variable [itcl::scope _settings(cutplaneYPosition)] \
1990	-foreground green3 -font "Arial 9 bold"
1991	} {
1992	usual
1993	ignore -borderwidth -highlightthickness -foreground -font
1994	}
1995	Rappture::Tooltip::for $itk_component(yCutScale) \
1996	"@[itcl::code $this Slice tooltip y]"
1997	# Set the default cutplane value before disabling the scale.
1998	$itk_component(yCutScale) set 50
1999	$itk_component(yCutScale) configure -state disabled
2000
2001	# Z-value slicer...
2002	itk_component add zCutButton {
2003	Rappture::PushButton $inner.zbutton \
2004	-onimage [Rappture::icon z-cutplane-blue] \
2005	-offimage [Rappture::icon z-cutplane-blue] \
2006	-command [itcl::code $this AdjustSetting cutplaneZVisible] \
2007	-variable [itcl::scope _settings(cutplaneZVisible)]
2008	}
2009	Rappture::Tooltip::for $itk_component(zCutButton) \
2010	"Toggle the Z-axis cutplane on/off"
2011	$itk_component(zCutButton) select
2012
2013	itk_component add zCutScale {
2014	::scale $inner.zval -from 100 -to 0 \
2015	-width 10 -orient vertical -showvalue yes \
2016	-borderwidth 1 -highlightthickness 0 \
2017	-command [itcl::code $this EventuallySetCutplane z] \
2018	-variable [itcl::scope _settings(cutplaneZPosition)] \
2019	-foreground blue3 -font "Arial 9 bold"
2020	} {
2021	usual
2022	ignore -borderwidth -highlightthickness -foreground -font
2023	}
2024	$itk_component(zCutScale) set 50
2025	$itk_component(zCutScale) configure -state disabled
2026	Rappture::Tooltip::for $itk_component(zCutScale) \
2027	"@[itcl::code $this Slice tooltip z]"
2028
2029	blt::table $inner \
2030	0,0 $inner.lighting -anchor w -pady 2 -cspan 4 \
2031	1,0 $inner.wireframe -anchor w -pady 2 -cspan 4 \
2032	2,0 $inner.edges -anchor w -pady 2 -cspan 4 \
2033	3,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2034	3,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2035	4,0 $itk_component(xCutButton) -anchor w -padx 2 -pady 2 \
2036	5,0 $itk_component(yCutButton) -anchor w -padx 2 -pady 2 \
2037	6,0 $itk_component(zCutButton) -anchor w -padx 2 -pady 2 \
2038	4,1 $itk_component(xCutScale) -fill y -rspan 4 \
2039	4,2 $itk_component(yCutScale) -fill y -rspan 4 \
2040	4,3 $itk_component(zCutScale) -fill y -rspan 4 \
2041
2042	blt::table configure $inner r* c* -resize none
2043	blt::table configure $inner r7 c4 -resize expand
2044	}
2045
2046	#
2047	# camera --
2048	#
2049	itcl::body Rappture::VtkStreamlinesViewer::camera {option args} {
2050	switch -- $option {
2051	"show" {
2052	puts [array get _view]
2053	}
2054	"set" {
2055	set who [lindex $args 0]
2056	set x $_view($who)
2057	set code [catch { string is double $x } result]
2058	if { $code != 0 \|\| !$result } {
2059	return
2060	}
2061	switch -- $who {
2062	"ortho" {
2063	if {$_view(ortho)} {
2064	SendCmd "camera mode ortho"
2065	} else {
2066	SendCmd "camera mode persp"
2067	}
2068	}
2069	"xpan" - "ypan" {
2070	PanCamera
2071	}
2072	"qx" - "qy" - "qz" - "qw" {
2073	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2074	$_arcball quaternion $q
2075	EventuallyRotate $q
2076	}
2077	"zoom" {
2078	SendCmd "camera zoom $_view(zoom)"
2079	}
2080	}
2081	}
2082	}
2083	}
2084
2085	itcl::body Rappture::VtkStreamlinesViewer::GetVtkData { args } {
2086	set bytes ""
2087	foreach dataobj [get] {
2088	foreach comp [$dataobj components] {
2089	set tag $dataobj-$comp
2090	set contents [$dataobj vtkdata $comp]
2091	append bytes "$contents\n"
2092	}
2093	}
2094	return [list .vtk $bytes]
2095	}
2096
2097	itcl::body Rappture::VtkStreamlinesViewer::GetImage { args } {
2098	if { [image width $_image(download)] > 0 &&
2099	[image height $_image(download)] > 0 } {
2100	set bytes [$_image(download) data -format "jpeg -quality 100"]
2101	set bytes [Rappture::encoding::decode -as b64 $bytes]
2102	return [list .jpg $bytes]
2103	}
2104	return ""
2105	}
2106
2107	itcl::body Rappture::VtkStreamlinesViewer::BuildDownloadPopup { popup command } {
2108	Rappture::Balloon $popup \
2109	-title "[Rappture::filexfer::label downloadWord] as..."
2110	set inner [$popup component inner]
2111	label $inner.summary -text "" -anchor w
2112	radiobutton $inner.vtk_button -text "VTK data file" \
2113	-variable [itcl::scope _downloadPopup(format)] \
2114	-font "Helvetica 9 " \
2115	-value vtk
2116	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2117	radiobutton $inner.image_button -text "Image File" \
2118	-variable [itcl::scope _downloadPopup(format)] \
2119	-value image
2120	Rappture::Tooltip::for $inner.image_button \
2121	"Save as digital image."
2122
2123	button $inner.ok -text "Save" \
2124	-highlightthickness 0 -pady 2 -padx 3 \
2125	-command $command \
2126	-compound left \
2127	-image [Rappture::icon download]
2128
2129	button $inner.cancel -text "Cancel" \
2130	-highlightthickness 0 -pady 2 -padx 3 \
2131	-command [list $popup deactivate] \
2132	-compound left \
2133	-image [Rappture::icon cancel]
2134
2135	blt::table $inner \
2136	0,0 $inner.summary -cspan 2 \
2137	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2138	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2139	4,1 $inner.cancel -width .9i -fill y \
2140	4,0 $inner.ok -padx 2 -width .9i -fill y
2141	blt::table configure $inner r3 -height 4
2142	blt::table configure $inner r4 -pady 4
2143	raise $inner.image_button
2144	$inner.vtk_button invoke
2145	return $inner
2146	}
2147
2148	itcl::body Rappture::VtkStreamlinesViewer::SetObjectStyle { dataobj comp } {
2149	# Parse style string.
2150	set tag $dataobj-$comp
2151	set style [$dataobj style $comp]
2152	array set settings {
2153	-color \#808080
2154	-edges 0
2155	-edgecolor black
2156	-linewidth 1.0
2157	-opacity 0.4
2158	-wireframe 0
2159	-lighting 1
2160	-seeds 1
2161	-seedcolor white
2162	-visible 1
2163	}
2164	if { $dataobj != $_first } {
2165	set settings(-opacity) 1
2166	}
2167	array set settings $style
2168	SendCmd "streamlines add $tag"
2169	SendCmd "streamlines seed visible off $tag"
2170	set seeds [$dataobj hints seeds]
2171	if { $seeds != "" && ![info exists _seeds($dataobj)] } {
2172	set length [string length $seeds]
2173	SendCmd "streamlines seed fmesh 200 data follows $length $tag"
2174	SendCmd "$seeds"
2175	set _seeds($dataobj) 1
2176	}
2177	SendCmd "cutplane add $tag"
2178	SendCmd "polydata add $tag"
2179	#SendCmd "polydata colormode ccolor {} $tag"
2180	set _settings(volumeEdges) $settings(-edges)
2181	set _settings(volumeLighting) $settings(-lighting)
2182	set _settings(volumeOpacity) $settings(-opacity)
2183	set _settings(volumeWireframe) $settings(-wireframe)
2184	set _settings(volumeOpacity) [expr $settings(-opacity) * 100.0]
2185	SetColormap $dataobj $comp
2186	}
2187
2188	itcl::body Rappture::VtkStreamlinesViewer::IsValidObject { dataobj } {
2189	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2190	return 0
2191	}
2192	return 1
2193	}
2194
2195	# ----------------------------------------------------------------------
2196	# USAGE: ReceiveLegend <colormap> <title> <vmin> <vmax> <size>
2197	#
2198	# Invoked automatically whenever the "legend" command comes in from
2199	# the rendering server. Indicates that binary image data with the
2200	# specified <size> will follow.
2201	# ----------------------------------------------------------------------
2202	itcl::body Rappture::VtkStreamlinesViewer::ReceiveLegend { colormap title vmin vmax size } {
2203	set _legendPending 0
2204	set _title $title
2205	regsub {$mag$} $title "" _title
2206	if { [IsConnected] } {
2207	set bytes [ReceiveBytes $size]
2208	if { ![info exists _image(legend)] } {
2209	set _image(legend) [image create photo]
2210	}
2211	$_image(legend) configure -data $bytes
2212	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2213	if { [catch {DrawLegend} errs] != 0 } {
2214	puts stderr errs=$errs
2215	}
2216	}
2217	}
2218
2219	#
2220	# DrawLegend --
2221	#
2222	# Draws the legend in it's own canvas which resides to the right
2223	# of the contour plot area.
2224	#
2225	itcl::body Rappture::VtkStreamlinesViewer::DrawLegend {} {
2226	set fname $_curFldName
2227	set c $itk_component(view)
2228	set w [winfo width $c]
2229	set h [winfo height $c]
2230	set font "Arial 8"
2231	set lineht [font metrics $font -linespace]
2232
2233	if { [info exists _fields($fname)] } {
2234	foreach { title units } $_fields($fname) break
2235	if { $units != "" } {
2236	set title [format "%s (%s)" $title $units]
2237	}
2238	} else {
2239	set title $fname
2240	}
2241	if { $_settings(legendVisible) } {
2242	set x [expr $w - 2]
2243	if { [$c find withtag "legend"] == "" } {
2244	set y 2
2245	$c create text $x $y \
2246	-anchor ne \
2247	-fill $itk_option(-plotforeground) -tags "title legend" \
2248	-font $font
2249	incr y $lineht
2250	$c create text $x $y \
2251	-anchor ne \
2252	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2253	-font $font
2254	incr y $lineht
2255	$c create image $x $y \
2256	-anchor ne \
2257	-image $_image(legend) -tags "colormap legend"
2258	$c create text $x [expr {$h-2}] \
2259	-anchor se \
2260	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2261	-font $font
2262	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2263	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2264	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2265	}
2266	$c bind title <ButtonPress> [itcl::code $this Combo post]
2267	$c bind title <Enter> [itcl::code $this Combo activate]
2268	$c bind title <Leave> [itcl::code $this Combo deactivate]
2269	# Reset the item coordinates according the current size of the plot.
2270	$c itemconfigure title -text $title
2271	if { [info exists _limits($_curFldName)] } {
2272	foreach {vmin vmax} $_limits($_curFldName) break
2273	$c itemconfigure vmin -text [format %g $vmin]
2274	$c itemconfigure vmax -text [format %g $vmax]
2275	}
2276	set y 2
2277	$c coords title $x $y
2278	incr y $lineht
2279	$c coords vmax $x $y
2280	incr y $lineht
2281	$c coords colormap $x $y
2282	$c coords vmin $x [expr {$h - 2}]
2283	}
2284	}
2285
2286	#
2287	# EnterLegend --
2288	#
2289	itcl::body Rappture::VtkStreamlinesViewer::EnterLegend { x y } {
2290	SetLegendTip $x $y
2291	}
2292
2293	#
2294	# MotionLegend --
2295	#
2296	itcl::body Rappture::VtkStreamlinesViewer::MotionLegend { x y } {
2297	Rappture::Tooltip::tooltip cancel
2298	set c $itk_component(view)
2299	SetLegendTip $x $y
2300	}
2301
2302	#
2303	# LeaveLegend --
2304	#
2305	itcl::body Rappture::VtkStreamlinesViewer::LeaveLegend { } {
2306	Rappture::Tooltip::tooltip cancel
2307	.rappturetooltip configure -icon ""
2308	}
2309
2310	#
2311	# SetLegendTip --
2312	#
2313	itcl::body Rappture::VtkStreamlinesViewer::SetLegendTip { x y } {
2314	set c $itk_component(view)
2315	set w [winfo width $c]
2316	set h [winfo height $c]
2317	set font "Arial 8"
2318	set lineht [font metrics $font -linespace]
2319
2320	set imgHeight [image height $_image(legend)]
2321	set coords [$c coords colormap]
2322	set imgX [expr $w - [image width $_image(legend)] - 2]
2323	set imgY [expr $y - 2 * ($lineht + 2)]
2324
2325	if { [info exists _fields($_title)] } {
2326	foreach { title units } $_fields($_title) break
2327	if { $units != "" } {
2328	set title [format "%s (%s)" $title $units]
2329	}
2330	} else {
2331	set title $_title
2332	}
2333	# Make a swatch of the selected color
2334	if { [catch { $_image(legend) get 10 $imgY } pixel] != 0 } {
2335	#puts stderr "out of range: $imgY"
2336	return
2337	}
2338	if { ![info exists _image(swatch)] } {
2339	set _image(swatch) [image create photo -width 24 -height 24]
2340	}
2341	set color [eval format "\#%02x%02x%02x" $pixel]
2342	$_image(swatch) put black -to 0 0 23 23
2343	$_image(swatch) put $color -to 1 1 22 22
2344	.rappturetooltip configure -icon $_image(swatch)
2345
2346	# Compute the value of the point
2347	if { [info exists _limits($_curFldName)] } {
2348	foreach {vmin vmax} $_limits($_curFldName) break
2349	set t [expr 1.0 - (double($imgY) / double($imgHeight-1))]
2350	set value [expr $t * ($vmax - $vmin) + $vmin]
2351	} else {
2352	set value 0.0
2353	}
2354	set tipx [expr $x + 15]
2355	set tipy [expr $y - 5]
2356	Rappture::Tooltip::text $c "$title $value"
2357	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2358	}
2359
2360	# ----------------------------------------------------------------------
2361	# USAGE: Slice move x\|y\|z <newval>
2362	#
2363	# Called automatically when the user drags the slider to move the
2364	# cut plane that slices 3D data. Gets the current value from the
2365	# slider and moves the cut plane to the appropriate point in the
2366	# data set.
2367	# ----------------------------------------------------------------------
2368	itcl::body Rappture::VtkStreamlinesViewer::Slice {option args} {
2369	switch -- $option {
2370	"move" {
2371	set axis [lindex $args 0]
2372	set oldval $_settings(axis-${axis}position)
2373	set newval [lindex $args 1]
2374	if {[llength $args] != 2} {
2375	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2376	}
2377	set newpos [expr {0.01*$newval}]
2378	SendCmd "cutplane slice $axis $newpos"
2379	}
2380	"tooltip" {
2381	set axis [lindex $args 0]
2382	set val [$itk_component(${axis}CutScale) get]
2383	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2384	}
2385	default {
2386	error "bad option \"$option\": should be axis, move, or tooltip"
2387	}
2388	}
2389	}
2390
2391	# ----------------------------------------------------------------------
2392	# USAGE: _dropdown post
2393	# USAGE: _dropdown unpost
2394	# USAGE: _dropdown select
2395	#
2396	# Used internally to handle the dropdown list for this combobox. The
2397	# post/unpost options are invoked when the list is posted or unposted
2398	# to manage the relief of the controlling button. The select option
2399	# is invoked whenever there is a selection from the list, to assign
2400	# the value back to the gauge.
2401	# ----------------------------------------------------------------------
2402	itcl::body Rappture::VtkStreamlinesViewer::Combo {option} {
2403	set c $itk_component(view)
2404	switch -- $option {
2405	post {
2406	foreach { x1 y1 x2 y2 } [$c bbox title] break
2407	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2408	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2409	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2410	tk_popup $itk_component(fieldmenu) $x $y
2411	}
2412	activate {
2413	$c itemconfigure title -fill red
2414	}
2415	deactivate {
2416	$c itemconfigure title -fill white
2417	}
2418	invoke {
2419	$itk_component(field) value $_curFldLabel
2420	AdjustSetting field
2421	}
2422	default {
2423	error "bad option \"$option\": should be post, unpost, select"
2424	}
2425	}
2426	}
2427
2428	itcl::body Rappture::VtkStreamlinesViewer::SetOrientation { side } {
2429	array set positions {
2430	front "1 0 0 0"
2431	back "0 0 1 0"
2432	left "0.707107 0 -0.707107 0"
2433	right "0.707107 0 0.707107 0"
2434	top "0.707107 -0.707107 0 0"
2435	bottom "0.707107 0.707107 0 0"
2436	}
2437	foreach name { qw qx qy qz } value $positions($side) {
2438	set _view($name) $value
2439	}
2440	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2441	$_arcball quaternion $q
2442	SendCmd "camera orient $q"
2443	SendCmd "camera reset"
2444	set _view(xpan) 0
2445	set _view(ypan) 0
2446	set _view(zoom) 1.0
2447	}

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source: trunk/gui/scripts/vtkstreamlinesviewer.tcl @ 3814

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