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source: branches/1.3/gui/scripts/vtkstreamlinesviewer.tcl @ 4766

Last change on this file since 4766 was 4766, checked in by ldelgass, 10 years ago
merge r4765 from trunk
File size: 83.2 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 _obj2datasets
119	private variable _obj2ovride ; # maps dataobj => style override
120	private variable _datasets ; # contains all the dataobj-component
121	; # datasets in the server
122	private variable _colormaps ; # contains all the colormaps
123	; # in the server.
124	private variable _dataset2style ;# maps dataobj-component to transfunc
125
126	private variable _click ; # info used for rotate operations
127	private variable _limits ; # autoscale min/max for all axes
128	private variable _view ; # view params for 3D view
129	private variable _settings
130	private variable _style; # Array of current component styles.
131	private variable _initialStyle; # Array of initial component styles.
132	private variable _reset 1; # indicates if camera needs to be reset
133	# to starting position.
134
135	private variable _first "" ; # This is the topmost dataset.
136	private variable _start 0
137	private variable _title ""
138	private variable _seeds
139
140	common _downloadPopup; # download options from popup
141	private common _hardcopy
142	private variable _width 0
143	private variable _height 0
144	private variable _resizePending 0
145	private variable _reseedPending 0
146	private variable _rotatePending 0
147	private variable _cutplanePending 0
148	private variable _legendPending 0
149	private variable _vectorFields
150	private variable _scalarFields
151	private variable _fields
152	private variable _curFldName ""
153	private variable _curFldLabel ""
154	private variable _field ""
155	private variable _numSeeds 200
156	private variable _colorMode "vmag";# Mode of colormap (vmag or scalar)
157	}
158
159	itk::usual VtkStreamlinesViewer {
160	keep -background -foreground -cursor -font
161	keep -plotbackground -plotforeground
162	}
163
164	# ----------------------------------------------------------------------
165	# CONSTRUCTOR
166	# ----------------------------------------------------------------------
167	itcl::body Rappture::VtkStreamlinesViewer::constructor {hostlist args} {
168	package require vtk
169	set _serverType "vtkvis"
170
171	EnableWaitDialog 2000
172
173	# Rebuild event
174	$_dispatcher register !rebuild
175	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
176
177	# Resize event
178	$_dispatcher register !resize
179	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
180
181	# Reseed event
182	$_dispatcher register !reseed
183	$_dispatcher dispatch $this !reseed "[itcl::code $this DoReseed]; list"
184
185	# Rotate event
186	$_dispatcher register !rotate
187	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
188
189	# Legend event
190	$_dispatcher register !legend
191	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
192
193	# X-Cutplane event
194	$_dispatcher register !xcutplane
195	$_dispatcher dispatch $this !xcutplane \
196	"[itcl::code $this AdjustSetting cutplaneXPosition]; list"
197
198	# Y-Cutplane event
199	$_dispatcher register !ycutplane
200	$_dispatcher dispatch $this !ycutplane \
201	"[itcl::code $this AdjustSetting cutplaneYPosition]; list"
202
203	# Z-Cutplane event
204	$_dispatcher register !zcutplane
205	$_dispatcher dispatch $this !zcutplane \
206	"[itcl::code $this AdjustSetting cutplaneZPosition]; list"
207
208	#
209	# Populate parser with commands handle incoming requests
210	#
211	$_parser alias image [itcl::code $this ReceiveImage]
212	$_parser alias dataset [itcl::code $this ReceiveDataset]
213	$_parser alias legend [itcl::code $this ReceiveLegend]
214
215	# Initialize the view to some default parameters.
216	array set _view {
217	-ortho 0
218	-qw 0.853553
219	-qx -0.353553
220	-qy 0.353553
221	-qz 0.146447
222	-xpan 0
223	-ypan 0
224	-zoom 1.0
225	}
226	set _arcball [blt::arcball create 100 100]
227	$_arcball quaternion [ViewToQuaternion]
228
229	array set _settings [subst {
230	axesVisible 1
231	axisLabelsVisible 1
232	axisMinorTicks 1
233	axisXGrid 0
234	axisYGrid 0
235	axisZGrid 0
236	cutplaneEdges 0
237	cutplaneLighting 1
238	cutplaneOpacity 100
239	cutplaneVisible 0
240	cutplaneWireframe 0
241	cutplaneXPosition 50
242	cutplaneXVisible 1
243	cutplaneYPosition 50
244	cutplaneYVisible 1
245	cutplaneZPosition 50
246	cutplaneZVisible 1
247	legendVisible 1
248	streamlinesLighting 1
249	streamlinesMode lines
250	streamlinesNumSeeds 200
251	streamlinesOpacity 100
252	streamlinesScale 1
253	streamlinesSeedsVisible 0
254	streamlinesVisible 1
255	volumeEdges 0
256	volumeLighting 1
257	volumeOpacity 40
258	volumeVisible 1
259	volumeWireframe 0
260	}]
261
262	itk_component add view {
263	canvas $itk_component(plotarea).view \
264	-highlightthickness 0 -borderwidth 0
265	} {
266	usual
267	ignore -highlightthickness -borderwidth -background
268	}
269
270	itk_component add fieldmenu {
271	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
272	-tearoff no
273	} {
274	usual
275	ignore -background -foreground -relief -tearoff
276	}
277	set c $itk_component(view)
278	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
279	bind $c <4> [itcl::code $this Zoom in 0.25]
280	bind $c <5> [itcl::code $this Zoom out 0.25]
281	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
282	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
283	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
284	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
285	bind $c <Enter> "focus %W"
286	bind $c <Control-F1> [itcl::code $this ToggleConsole]
287
288	# Fix the scrollregion in case we go off screen
289	$c configure -scrollregion [$c bbox all]
290
291	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
292	set _map(cwidth) -1
293	set _map(cheight) -1
294	set _map(zoom) 1.0
295	set _map(original) ""
296
297	set f [$itk_component(main) component controls]
298	itk_component add reset {
299	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
300	-highlightthickness 0 \
301	-image [Rappture::icon reset-view] \
302	-command [itcl::code $this Zoom reset]
303	} {
304	usual
305	ignore -highlightthickness
306	}
307	pack $itk_component(reset) -side top -padx 2 -pady 2
308	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
309
310	itk_component add zoomin {
311	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
312	-highlightthickness 0 \
313	-image [Rappture::icon zoom-in] \
314	-command [itcl::code $this Zoom in]
315	} {
316	usual
317	ignore -highlightthickness
318	}
319	pack $itk_component(zoomin) -side top -padx 2 -pady 2
320	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
321
322	itk_component add zoomout {
323	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
324	-highlightthickness 0 \
325	-image [Rappture::icon zoom-out] \
326	-command [itcl::code $this Zoom out]
327	} {
328	usual
329	ignore -highlightthickness
330	}
331	pack $itk_component(zoomout) -side top -padx 2 -pady 2
332	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
333
334	itk_component add volume {
335	Rappture::PushButton $f.volume \
336	-onimage [Rappture::icon volume-on] \
337	-offimage [Rappture::icon volume-off] \
338	-variable [itcl::scope _settings(volumeVisible)] \
339	-command [itcl::code $this AdjustSetting volumeVisible]
340	}
341	$itk_component(volume) select
342	Rappture::Tooltip::for $itk_component(volume) \
343	"Don't display the volume"
344	pack $itk_component(volume) -padx 2 -pady 2
345
346	itk_component add streamlines {
347	Rappture::PushButton $f.streamlines \
348	-onimage [Rappture::icon streamlines-on] \
349	-offimage [Rappture::icon streamlines-off] \
350	-variable [itcl::scope _settings(streamlinesVisible)] \
351	-command [itcl::code $this AdjustSetting streamlinesVisible] \
352	}
353	$itk_component(streamlines) select
354	Rappture::Tooltip::for $itk_component(streamlines) \
355	"Toggle the streamlines on/off"
356	pack $itk_component(streamlines) -padx 2 -pady 2
357
358	itk_component add cutplane {
359	Rappture::PushButton $f.cutplane \
360	-onimage [Rappture::icon cutbutton] \
361	-offimage [Rappture::icon cutbutton] \
362	-variable [itcl::scope _settings(cutplaneVisible)] \
363	-command [itcl::code $this AdjustSetting cutplaneVisible]
364	}
365	Rappture::Tooltip::for $itk_component(cutplane) \
366	"Show/Hide cutplanes"
367	pack $itk_component(cutplane) -padx 2 -pady 2
368
369
370	if { [catch {
371	BuildVolumeTab
372	BuildStreamsTab
373	BuildCutplaneTab
374	BuildAxisTab
375	BuildCameraTab
376	} errs] != 0 } {
377	puts stderr errs=$errs
378	}
379	# Legend
380
381	set _image(legend) [image create photo]
382	itk_component add legend {
383	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
384	} {
385	usual
386	ignore -highlightthickness
387	rename -background -plotbackground plotBackground Background
388	}
389
390	# Hack around the Tk panewindow. The problem is that the requested
391	# size of the 3d view isn't set until an image is retrieved from
392	# the server. So the panewindow uses the tiny size.
393	set w 10000
394	pack forget $itk_component(view)
395	blt::table $itk_component(plotarea) \
396	0,0 $itk_component(view) -fill both -reqwidth $w
397	blt::table configure $itk_component(plotarea) c1 -resize none
398
399	# Bindings for rotation via mouse
400	bind $itk_component(view) <ButtonPress-1> \
401	[itcl::code $this Rotate click %x %y]
402	bind $itk_component(view) <B1-Motion> \
403	[itcl::code $this Rotate drag %x %y]
404	bind $itk_component(view) <ButtonRelease-1> \
405	[itcl::code $this Rotate release %x %y]
406
407	# Bindings for panning via mouse
408	bind $itk_component(view) <ButtonPress-2> \
409	[itcl::code $this Pan click %x %y]
410	bind $itk_component(view) <B2-Motion> \
411	[itcl::code $this Pan drag %x %y]
412	bind $itk_component(view) <ButtonRelease-2> \
413	[itcl::code $this Pan release %x %y]
414
415	#bind $itk_component(view) <ButtonRelease-3> \
416	# [itcl::code $this Pick %x %y]
417
418	# Bindings for panning via keyboard
419	bind $itk_component(view) <KeyPress-Left> \
420	[itcl::code $this Pan set -10 0]
421	bind $itk_component(view) <KeyPress-Right> \
422	[itcl::code $this Pan set 10 0]
423	bind $itk_component(view) <KeyPress-Up> \
424	[itcl::code $this Pan set 0 -10]
425	bind $itk_component(view) <KeyPress-Down> \
426	[itcl::code $this Pan set 0 10]
427	bind $itk_component(view) <Shift-KeyPress-Left> \
428	[itcl::code $this Pan set -2 0]
429	bind $itk_component(view) <Shift-KeyPress-Right> \
430	[itcl::code $this Pan set 2 0]
431	bind $itk_component(view) <Shift-KeyPress-Up> \
432	[itcl::code $this Pan set 0 -2]
433	bind $itk_component(view) <Shift-KeyPress-Down> \
434	[itcl::code $this Pan set 0 2]
435
436	# Bindings for zoom via keyboard
437	bind $itk_component(view) <KeyPress-Prior> \
438	[itcl::code $this Zoom out]
439	bind $itk_component(view) <KeyPress-Next> \
440	[itcl::code $this Zoom in]
441
442	bind $itk_component(view) <Enter> "focus $itk_component(view)"
443
444	if {[string equal "x11" [tk windowingsystem]]} {
445	# Bindings for zoom via mouse
446	bind $itk_component(view) <4> [itcl::code $this Zoom out]
447	bind $itk_component(view) <5> [itcl::code $this Zoom in]
448	}
449
450	set _image(download) [image create photo]
451
452	eval itk_initialize $args
453	Connect
454	}
455
456	# ----------------------------------------------------------------------
457	# DESTRUCTOR
458	# ----------------------------------------------------------------------
459	itcl::body Rappture::VtkStreamlinesViewer::destructor {} {
460	Disconnect
461	image delete $_image(plot)
462	image delete $_image(download)
463	catch { blt::arcball destroy $_arcball }
464	}
465
466	itcl::body Rappture::VtkStreamlinesViewer::DoResize {} {
467	if { $_width < 2 } {
468	set _width 500
469	}
470	if { $_height < 2 } {
471	set _height 500
472	}
473	set _start [clock clicks -milliseconds]
474	SendCmd "screen size $_width $_height"
475
476	set _legendPending 1
477	set _resizePending 0
478	}
479
480	itcl::body Rappture::VtkStreamlinesViewer::DoRotate {} {
481	SendCmd "camera orient [ViewToQuaternion]"
482	set _rotatePending 0
483	}
484
485	itcl::body Rappture::VtkStreamlinesViewer::DoReseed {} {
486	foreach dataset [CurrentDatasets -visible] {
487	foreach {dataobj comp} [split $dataset -] break
488	# This command works for either random or fmesh seeds
489	SendCmd "streamlines seed numpts $_numSeeds $dataset"
490	}
491	set _reseedPending 0
492	}
493
494	itcl::body Rappture::VtkStreamlinesViewer::EventuallyResize { w h } {
495	set _width $w
496	set _height $h
497	$_arcball resize $w $h
498	if { !$_resizePending } {
499	set _resizePending 1
500	$_dispatcher event -after 400 !resize
501	}
502	}
503
504	itcl::body Rappture::VtkStreamlinesViewer::EventuallyReseed { numPoints } {
505	set _numSeeds $numPoints
506	if { !$_reseedPending } {
507	set _reseedPending 1
508	$_dispatcher event -after 600 !reseed
509	}
510	}
511
512	set rotate_delay 100
513
514	itcl::body Rappture::VtkStreamlinesViewer::EventuallyRotate { q } {
515	QuaternionToView $q
516	if { !$_rotatePending } {
517	set _rotatePending 1
518	global rotate_delay
519	$_dispatcher event -after $rotate_delay !rotate
520	}
521	}
522
523	itcl::body Rappture::VtkStreamlinesViewer::EventuallySetCutplane { axis args } {
524	if { !$_cutplanePending } {
525	set _cutplanePending 1
526	$_dispatcher event -after 100 !${axis}cutplane
527	}
528	}
529
530	# ----------------------------------------------------------------------
531	# USAGE: add <dataobj> ?<settings>?
532	#
533	# Clients use this to add a data object to the plot. The optional
534	# <settings> are used to configure the plot. Allowed settings are
535	# -color, -brightness, -width, -linestyle, and -raise.
536	# ----------------------------------------------------------------------
537	itcl::body Rappture::VtkStreamlinesViewer::add {dataobj {settings ""}} {
538	array set params {
539	-color auto
540	-width 1
541	-linestyle solid
542	-brightness 0
543	-raise 0
544	-description ""
545	-param ""
546	-type ""
547	}
548	array set params $settings
549	set params(-description) ""
550	set params(-param) ""
551	array set params $settings
552
553	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
554	# can't handle -autocolors yet
555	set params(-color) black
556	}
557	set pos [lsearch -exact $_dlist $dataobj]
558	if {$pos < 0} {
559	lappend _dlist $dataobj
560	}
561	set _obj2ovride($dataobj-color) $params(-color)
562	set _obj2ovride($dataobj-width) $params(-width)
563	set _obj2ovride($dataobj-raise) $params(-raise)
564	$_dispatcher event -idle !rebuild
565	}
566
567
568	# ----------------------------------------------------------------------
569	# USAGE: delete ?<dataobj1> <dataobj2> ...?
570	#
571	# Clients use this to delete a dataobj from the plot. If no dataobjs
572	# are specified, then all dataobjs are deleted. No data objects are
573	# deleted. They are only removed from the display list.
574	#
575	# ----------------------------------------------------------------------
576	itcl::body Rappture::VtkStreamlinesViewer::delete {args} {
577	if { [llength $args] == 0} {
578	set args $_dlist
579	}
580	# Delete all specified dataobjs
581	set changed 0
582	foreach dataobj $args {
583	set pos [lsearch -exact $_dlist $dataobj]
584	if { $pos < 0 } {
585	continue; # Don't know anything about it.
586	}
587	# Remove it from the dataobj list.
588	set _dlist [lreplace $_dlist $pos $pos]
589	array unset _obj2ovride $dataobj-*
590	array unset _settings $dataobj-*
591	set changed 1
592	}
593	# If anything changed, then rebuild the plot
594	if { $changed } {
595	$_dispatcher event -idle !rebuild
596	}
597	}
598
599	# ----------------------------------------------------------------------
600	# USAGE: get ?-objects?
601	# USAGE: get ?-visible?
602	# USAGE: get ?-image view?
603	#
604	# Clients use this to query the list of objects being plotted, in
605	# order from bottom to top of this result. The optional "-image"
606	# flag can also request the internal images being shown.
607	# ----------------------------------------------------------------------
608	itcl::body Rappture::VtkStreamlinesViewer::get {args} {
609	if {[llength $args] == 0} {
610	set args "-objects"
611	}
612
613	set op [lindex $args 0]
614	switch -- $op {
615	"-objects" {
616	# put the dataobj list in order according to -raise options
617	set dlist {}
618	foreach dataobj $_dlist {
619	if { ![IsValidObject $dataobj] } {
620	continue
621	}
622	if {[info exists _obj2ovride($dataobj-raise)] &&
623	$_obj2ovride($dataobj-raise)} {
624	set dlist [linsert $dlist 0 $dataobj]
625	} else {
626	lappend dlist $dataobj
627	}
628	}
629	return $dlist
630	}
631	"-visible" {
632	set dlist {}
633	foreach dataobj $_dlist {
634	if { ![IsValidObject $dataobj] } {
635	continue
636	}
637	if { ![info exists _obj2ovride($dataobj-raise)] } {
638	# No setting indicates that the object isn't visible.
639	continue
640	}
641	# Otherwise use the -raise parameter to put the object to
642	# the front of the list.
643	if { $_obj2ovride($dataobj-raise) } {
644	set dlist [linsert $dlist 0 $dataobj]
645	} else {
646	lappend dlist $dataobj
647	}
648	}
649	return $dlist
650	}
651	-image {
652	if {[llength $args] != 2} {
653	error "wrong # args: should be \"get -image view\""
654	}
655	switch -- [lindex $args end] {
656	view {
657	return $_image(plot)
658	}
659	default {
660	error "bad image name \"[lindex $args end]\": should be view"
661	}
662	}
663	}
664	default {
665	error "bad option \"$op\": should be -objects or -image"
666	}
667	}
668	}
669
670	# ----------------------------------------------------------------------
671	# USAGE: scale ?<data1> <data2> ...?
672	#
673	# Sets the default limits for the overall plot according to the
674	# limits of the data for all of the given <data> objects. This
675	# accounts for all objects--even those not showing on the screen.
676	# Because of this, the limits are appropriate for all objects as
677	# the user scans through data in the ResultSet viewer.
678	# ----------------------------------------------------------------------
679	itcl::body Rappture::VtkStreamlinesViewer::scale {args} {
680	foreach dataobj $args {
681	foreach axis { x y z } {
682	set lim [$dataobj limits $axis]
683	if { ![info exists _limits($axis)] } {
684	set _limits($axis) $lim
685	continue
686	}
687	foreach {min max} $lim break
688	foreach {amin amax} $_limits($axis) break
689	if { $amin > $min } {
690	set amin $min
691	}
692	if { $amax < $max } {
693	set amax $max
694	}
695	set _limits($axis) [list $amin $amax]
696	}
697	foreach { fname lim } [$dataobj fieldlimits] {
698	if { ![info exists _limits($fname)] } {
699	set _limits($fname) $lim
700	continue
701	}
702	foreach {min max} $lim break
703	foreach {fmin fmax} $_limits($fname) break
704	if { $fmin > $min } {
705	set fmin $min
706	}
707	if { $fmax < $max } {
708	set fmax $max
709	}
710	set _limits($fname) [list $fmin $fmax]
711	}
712	}
713	}
714
715	# ----------------------------------------------------------------------
716	# USAGE: download coming
717	# USAGE: download controls <downloadCommand>
718	# USAGE: download now
719	#
720	# Clients use this method to create a downloadable representation
721	# of the plot. Returns a list of the form {ext string}, where
722	# "ext" is the file extension (indicating the type of data) and
723	# "string" is the data itself.
724	# ----------------------------------------------------------------------
725	itcl::body Rappture::VtkStreamlinesViewer::download {option args} {
726	switch $option {
727	coming {
728	if {[catch {
729	blt::winop snap $itk_component(plotarea) $_image(download)
730	}]} {
731	$_image(download) configure -width 1 -height 1
732	$_image(download) put #000000
733	}
734	}
735	controls {
736	set popup .vtkviewerdownload
737	if { ![winfo exists .vtkviewerdownload] } {
738	set inner [BuildDownloadPopup $popup [lindex $args 0]]
739	} else {
740	set inner [$popup component inner]
741	}
742	set _downloadPopup(image_controls) $inner.image_frame
743	set num [llength [get]]
744	set num [expr {($num == 1) ? "1 result" : "$num results"}]
745	set word [Rappture::filexfer::label downloadWord]
746	$inner.summary configure -text "$word $num in the following format:"
747	update idletasks ;# Fix initial sizes
748	return $popup
749	}
750	now {
751	set popup .vtkviewerdownload
752	if {[winfo exists .vtkviewerdownload]} {
753	$popup deactivate
754	}
755	switch -- $_downloadPopup(format) {
756	"image" {
757	return [$this GetImage [lindex $args 0]]
758	}
759	"vtk" {
760	return [$this GetVtkData [lindex $args 0]]
761	}
762	}
763	return ""
764	}
765	default {
766	error "bad option \"$option\": should be coming, controls, now"
767	}
768	}
769	}
770
771	# ----------------------------------------------------------------------
772	# USAGE: Connect ?<host:port>,<host:port>...?
773	#
774	# Clients use this method to establish a connection to a new
775	# server, or to reestablish a connection to the previous server.
776	# Any existing connection is automatically closed.
777	# ----------------------------------------------------------------------
778	itcl::body Rappture::VtkStreamlinesViewer::Connect {} {
779	set _hosts [GetServerList "vtkvis"]
780	if { "" == $_hosts } {
781	return 0
782	}
783	set result [VisViewer::Connect $_hosts]
784	if { $result } {
785	if { $_reportClientInfo } {
786	# Tell the server the viewer, hub, user and session.
787	# Do this immediately on connect before buffering any commands
788	global env
789
790	set info {}
791	set user "???"
792	if { [info exists env(USER)] } {
793	set user $env(USER)
794	}
795	set session "???"
796	if { [info exists env(SESSION)] } {
797	set session $env(SESSION)
798	}
799	lappend info "version" "$Rappture::version"
800	lappend info "build" "$Rappture::build"
801	lappend info "svnurl" "$Rappture::svnurl"
802	lappend info "installdir" "$Rappture::installdir"
803	lappend info "hub" [exec hostname]
804	lappend info "client" "vtkstreamlinesviewer"
805	lappend info "user" $user
806	lappend info "session" $session
807	SendCmd "clientinfo [list $info]"
808	}
809
810	set w [winfo width $itk_component(view)]
811	set h [winfo height $itk_component(view)]
812	EventuallyResize $w $h
813	}
814	return $result
815	}
816
817	#
818	# isconnected --
819	#
820	# Indicates if we are currently connected to the visualization server.
821	#
822	itcl::body Rappture::VtkStreamlinesViewer::isconnected {} {
823	return [VisViewer::IsConnected]
824	}
825
826	#
827	# disconnect --
828	#
829	itcl::body Rappture::VtkStreamlinesViewer::disconnect {} {
830	Disconnect
831	set _reset 1
832	}
833
834	#
835	# Disconnect --
836	#
837	# Clients use this method to disconnect from the current rendering
838	# server.
839	#
840	itcl::body Rappture::VtkStreamlinesViewer::Disconnect {} {
841	VisViewer::Disconnect
842
843	$_dispatcher cancel !rebuild
844	$_dispatcher cancel !resize
845	$_dispatcher cancel !reseed
846	$_dispatcher cancel !rotate
847	$_dispatcher cancel !xcutplane
848	$_dispatcher cancel !ycutplane
849	$_dispatcher cancel !zcutplane
850	$_dispatcher cancel !legend
851	# disconnected -- no more data sitting on server
852	array unset _datasets
853	array unset _data
854	array unset _colormaps
855	array unset _seeds
856	array unset _dataset2style
857	array unset _obj2datasets
858	}
859
860	# ----------------------------------------------------------------------
861	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
862	#
863	# Invoked automatically whenever the "image" command comes in from
864	# the rendering server. Indicates that binary image data with the
865	# specified <size> will follow.
866	# ----------------------------------------------------------------------
867	itcl::body Rappture::VtkStreamlinesViewer::ReceiveImage { args } {
868	array set info {
869	-token "???"
870	-bytes 0
871	-type image
872	}
873	array set info $args
874	set bytes [ReceiveBytes $info(-bytes)]
875	if { $info(-type) == "image" } {
876	if 0 {
877	set f [open "last.ppm" "w"]
878	puts $f $bytes
879	close $f
880	}
881	$_image(plot) configure -data $bytes
882	set time [clock seconds]
883	set date [clock format $time]
884	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
885	if { $_start > 0 } {
886	set finish [clock clicks -milliseconds]
887	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
888	set _start 0
889	}
890	} elseif { $info(type) == "print" } {
891	set tag $this-print-$info(-token)
892	set _hardcopy($tag) $bytes
893	}
894	if { $_legendPending } {
895	RequestLegend
896	}
897	}
898
899	#
900	# ReceiveDataset --
901	#
902	itcl::body Rappture::VtkStreamlinesViewer::ReceiveDataset { args } {
903	if { ![isconnected] } {
904	return
905	}
906	set option [lindex $args 0]
907	switch -- $option {
908	"scalar" {
909	set option [lindex $args 1]
910	switch -- $option {
911	"world" {
912	foreach { x y z value tag } [lrange $args 2 end] break
913	}
914	"pixel" {
915	foreach { x y value tag } [lrange $args 2 end] break
916	}
917	}
918	}
919	"vector" {
920	set option [lindex $args 1]
921	switch -- $option {
922	"world" {
923	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
924	}
925	"pixel" {
926	foreach { x y vx vy vz tag } [lrange $args 2 end] break
927	}
928	}
929	}
930	"names" {
931	foreach { name } [lindex $args 1] {
932	#puts stderr "Dataset: $name"
933	}
934	}
935	default {
936	error "unknown dataset option \"$option\" from server"
937	}
938	}
939	}
940
941	# ----------------------------------------------------------------------
942	# USAGE: Rebuild
943	#
944	# Called automatically whenever something changes that affects the
945	# data in the widget. Clears any existing data and rebuilds the
946	# widget to display new data.
947	# ----------------------------------------------------------------------
948	itcl::body Rappture::VtkStreamlinesViewer::Rebuild {} {
949	update
950	set w [winfo width $itk_component(view)]
951	set h [winfo height $itk_component(view)]
952	if { $w < 2 \|\| $h < 2 } {
953	$_dispatcher event -idle !rebuild
954	return
955	}
956
957	# Turn on buffering of commands to the server. We don't want to
958	# be preempted by a server disconnect/reconnect (which automatically
959	# generates a new call to Rebuild).
960	StartBufferingCommands
961	set _legendPending 1
962
963	set _first ""
964	if { $_reset } {
965	set _width $w
966	set _height $h
967	$_arcball resize $w $h
968	DoResize
969	InitSettings axisXGrid axisYGrid axisZGrid axis-mode \
970	axesVisible axisLabelsVisible axisMinorTicks
971	# This "imgflush" is to force an image returned before vtkvis starts
972	# reading a (big) dataset. This will display an empty plot with axes
973	# at the correct image size.
974	SendCmd "imgflush"
975	}
976
977	set _first ""
978	SendCmd "dataset visible 0"
979	foreach dataobj [get -objects] {
980	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
981	set _first $dataobj
982	}
983	set _obj2datasets($dataobj) ""
984	foreach comp [$dataobj components] {
985	set tag $dataobj-$comp
986	if { ![info exists _datasets($tag)] } {
987	set bytes [$dataobj vtkdata $comp]
988	set length [string length $bytes]
989	if 0 {
990	set f [open /tmp/vtkstreamlines.vtk "w"]
991	fconfigure $f -translation binary -encoding binary
992	puts $f $bytes
993	close $f
994	}
995	if { $_reportClientInfo } {
996	set info {}
997	lappend info "tool_id" [$dataobj hints toolid]
998	lappend info "tool_name" [$dataobj hints toolname]
999	lappend info "tool_title" [$dataobj hints tooltitle]
1000	lappend info "tool_command" [$dataobj hints toolcommand]
1001	lappend info "tool_revision" [$dataobj hints toolrevision]
1002	lappend info "dataset_label" [$dataobj hints label]
1003	lappend info "dataset_size" $length
1004	lappend info "dataset_tag" $tag
1005	SendCmd "clientinfo [list $info]"
1006	}
1007	SendCmd "dataset add $tag data follows $length"
1008	append _outbuf $bytes
1009	set _datasets($tag) 1
1010	SetObjectStyle $dataobj $comp
1011	}
1012	lappend _obj2datasets($dataobj) $tag
1013	if { [info exists _obj2ovride($dataobj-raise)] } {
1014	SendCmd "dataset visible 1 $tag"
1015	}
1016	}
1017	}
1018	if {"" != $_first} {
1019	set location [$_first hints camera]
1020	if { $location != "" } {
1021	array set view $location
1022	}
1023	foreach axis { x y z } {
1024	set label [$_first hints ${axis}label]
1025	if { $label != "" } {
1026	SendCmd [list axis name $axis $label]
1027	}
1028	set units [$_first hints ${axis}units]
1029	if { $units != "" } {
1030	SendCmd [list axis units $axis $units]
1031	}
1032	}
1033	$itk_component(field) choices delete 0 end
1034	$itk_component(fieldmenu) delete 0 end
1035	array unset _fields
1036	set _curFldName ""
1037	foreach cname [$_first components] {
1038	foreach fname [$_first fieldnames $cname] {
1039	if { [info exists _fields($fname)] } {
1040	continue
1041	}
1042	foreach { label units components } \
1043	[$_first fieldinfo $fname] break
1044	$itk_component(field) choices insert end "$fname" "$label"
1045	$itk_component(fieldmenu) add radiobutton -label "$label" \
1046	-value $label -variable [itcl::scope _curFldLabel] \
1047	-selectcolor red \
1048	-activebackground $itk_option(-plotbackground) \
1049	-activeforeground $itk_option(-plotforeground) \
1050	-font "Arial 8" \
1051	-command [itcl::code $this Combo invoke]
1052	set _fields($fname) [list $label $units $components]
1053	if { $_curFldName == "" } {
1054	set _curFldName $fname
1055	set _curFldLabel $label
1056	}
1057	}
1058	}
1059	$itk_component(field) value $_curFldLabel
1060	}
1061
1062	if { $_reset } {
1063	InitSettings streamlinesSeedsVisible streamlinesOpacity \
1064	streamlinesVisible streamlinesColormap \
1065	streamlinesLighting \
1066	streamlinesColormap field \
1067	volumeVisible volumeEdges volumeLighting volumeOpacity \
1068	volumeWireframe \
1069	cutplaneVisible \
1070	cutplaneXPosition cutplaneYPosition cutplaneZPosition \
1071	cutplaneXVisible cutplaneYVisible cutplaneZVisible
1072
1073	# Reset the camera and other view parameters
1074	$_arcball quaternion [ViewToQuaternion]
1075	if {$_view(-ortho)} {
1076	SendCmd "camera mode ortho"
1077	} else {
1078	SendCmd "camera mode persp"
1079	}
1080	DoRotate
1081	PanCamera
1082	Zoom reset
1083	SendCmd "camera reset"
1084	set _reset 0
1085	}
1086	# Actually write the commands to the server socket. If it fails, we don't
1087	# care. We're finished here.
1088	blt::busy hold $itk_component(hull)
1089	StopBufferingCommands
1090	blt::busy release $itk_component(hull)
1091	}
1092
1093	# ----------------------------------------------------------------------
1094	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1095	#
1096	# Returns a list of server IDs for the current datasets being displayed. This
1097	# is normally a single ID, but it might be a list of IDs if the current data
1098	# object has multiple components.
1099	# ----------------------------------------------------------------------
1100	itcl::body Rappture::VtkStreamlinesViewer::CurrentDatasets {args} {
1101	set flag [lindex $args 0]
1102	switch -- $flag {
1103	"-all" {
1104	if { [llength $args] > 1 } {
1105	error "CurrentDatasets: can't specify dataobj after \"-all\""
1106	}
1107	set dlist [get -objects]
1108	}
1109	"-visible" {
1110	if { [llength $args] > 1 } {
1111	set dlist {}
1112	set args [lrange $args 1 end]
1113	foreach dataobj $args {
1114	if { [info exists _obj2ovride($dataobj-raise)] } {
1115	lappend dlist $dataobj
1116	}
1117	}
1118	} else {
1119	set dlist [get -visible]
1120	}
1121	}
1122	default {
1123	set dlist $args
1124	}
1125	}
1126	set rlist ""
1127	foreach dataobj $dlist {
1128	foreach comp [$dataobj components] {
1129	set tag $dataobj-$comp
1130	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1131	lappend rlist $tag
1132	}
1133	}
1134	}
1135	return $rlist
1136	}
1137
1138	# ----------------------------------------------------------------------
1139	# USAGE: Zoom in
1140	# USAGE: Zoom out
1141	# USAGE: Zoom reset
1142	#
1143	# Called automatically when the user clicks on one of the zoom
1144	# controls for this widget. Changes the zoom for the current view.
1145	# ----------------------------------------------------------------------
1146	itcl::body Rappture::VtkStreamlinesViewer::Zoom {option} {
1147	switch -- $option {
1148	"in" {
1149	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1150	SendCmd "camera zoom $_view(-zoom)"
1151	}
1152	"out" {
1153	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1154	SendCmd "camera zoom $_view(-zoom)"
1155	}
1156	"reset" {
1157	array set _view {
1158	-qw 0.853553
1159	-qx -0.353553
1160	-qy 0.353553
1161	-qz 0.146447
1162	-xpan 0
1163	-ypan 0
1164	-zoom 1.0
1165	}
1166	if { $_first != "" } {
1167	set location [$_first hints camera]
1168	if { $location != "" } {
1169	array set _view $location
1170	}
1171	}
1172	$_arcball quaternion [ViewToQuaternion]
1173	DoRotate
1174	SendCmd "camera reset"
1175	}
1176	}
1177	}
1178
1179	itcl::body Rappture::VtkStreamlinesViewer::PanCamera {} {
1180	set x $_view(-xpan)
1181	set y $_view(-ypan)
1182	SendCmd "camera pan $x $y"
1183	}
1184
1185	# ----------------------------------------------------------------------
1186	# USAGE: Rotate click <x> <y>
1187	# USAGE: Rotate drag <x> <y>
1188	# USAGE: Rotate release <x> <y>
1189	#
1190	# Called automatically when the user clicks/drags/releases in the
1191	# plot area. Moves the plot according to the user's actions.
1192	# ----------------------------------------------------------------------
1193	itcl::body Rappture::VtkStreamlinesViewer::Rotate {option x y} {
1194	switch -- $option {
1195	"click" {
1196	$itk_component(view) configure -cursor fleur
1197	set _click(x) $x
1198	set _click(y) $y
1199	}
1200	"drag" {
1201	if {[array size _click] == 0} {
1202	Rotate click $x $y
1203	} else {
1204	set w [winfo width $itk_component(view)]
1205	set h [winfo height $itk_component(view)]
1206	if {$w <= 0 \|\| $h <= 0} {
1207	return
1208	}
1209
1210	if {[catch {
1211	# this fails sometimes for no apparent reason
1212	set dx [expr {double($x-$_click(x))/$w}]
1213	set dy [expr {double($y-$_click(y))/$h}]
1214	}]} {
1215	return
1216	}
1217	if { $dx == 0 && $dy == 0 } {
1218	return
1219	}
1220	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1221	EventuallyRotate $q
1222	set _click(x) $x
1223	set _click(y) $y
1224	}
1225	}
1226	"release" {
1227	Rotate drag $x $y
1228	$itk_component(view) configure -cursor ""
1229	catch {unset _click}
1230	}
1231	default {
1232	error "bad option \"$option\": should be click, drag, release"
1233	}
1234	}
1235	}
1236
1237	itcl::body Rappture::VtkStreamlinesViewer::Pick {x y} {
1238	foreach tag [CurrentDatasets -visible] {
1239	SendCmdNoWait "dataset getscalar pixel $x $y $tag"
1240	}
1241	}
1242
1243	# ----------------------------------------------------------------------
1244	# USAGE: $this Pan click x y
1245	# $this Pan drag x y
1246	# $this Pan release x y
1247	#
1248	# Called automatically when the user clicks on one of the zoom
1249	# controls for this widget. Changes the zoom for the current view.
1250	# ----------------------------------------------------------------------
1251	itcl::body Rappture::VtkStreamlinesViewer::Pan {option x y} {
1252	switch -- $option {
1253	"set" {
1254	set w [winfo width $itk_component(view)]
1255	set h [winfo height $itk_component(view)]
1256	set x [expr $x / double($w)]
1257	set y [expr $y / double($h)]
1258	set _view(-xpan) [expr $_view(-xpan) + $x]
1259	set _view(-ypan) [expr $_view(-ypan) + $y]
1260	PanCamera
1261	return
1262	}
1263	"click" {
1264	set _click(x) $x
1265	set _click(y) $y
1266	$itk_component(view) configure -cursor hand1
1267	}
1268	"drag" {
1269	if { ![info exists _click(x)] } {
1270	set _click(x) $x
1271	}
1272	if { ![info exists _click(y)] } {
1273	set _click(y) $y
1274	}
1275	set w [winfo width $itk_component(view)]
1276	set h [winfo height $itk_component(view)]
1277	set dx [expr ($_click(x) - $x)/double($w)]
1278	set dy [expr ($_click(y) - $y)/double($h)]
1279	set _click(x) $x
1280	set _click(y) $y
1281	set _view(-xpan) [expr $_view(-xpan) - $dx]
1282	set _view(-ypan) [expr $_view(-ypan) - $dy]
1283	PanCamera
1284	}
1285	"release" {
1286	Pan drag $x $y
1287	$itk_component(view) configure -cursor ""
1288	}
1289	default {
1290	error "unknown option \"$option\": should set, click, drag, or release"
1291	}
1292	}
1293	}
1294
1295	# ----------------------------------------------------------------------
1296	# USAGE: InitSettings <what> ?<value>?
1297	#
1298	# Used internally to update rendering settings whenever parameters
1299	# change in the popup settings panel. Sends the new settings off
1300	# to the back end.
1301	# ----------------------------------------------------------------------
1302	itcl::body Rappture::VtkStreamlinesViewer::InitSettings { args } {
1303	foreach spec $args {
1304	if { [info exists _settings($_first-$spec)] } {
1305	# Reset global setting with dataobj specific setting
1306	set _settings($spec) $_settings($_first-$spec)
1307	}
1308	AdjustSetting $spec
1309	}
1310	}
1311
1312	#
1313	# AdjustSetting --
1314	#
1315	# Changes/updates a specific setting in the widget. There are
1316	# usually user-setable option. Commands are sent to the render
1317	# server.
1318	#
1319	itcl::body Rappture::VtkStreamlinesViewer::AdjustSetting {what {value ""}} {
1320	if { ![isconnected] } {
1321	return
1322	}
1323	switch -- $what {
1324	"volumeOpacity" {
1325	set val $_settings($what)
1326	set sval [expr { 0.01 * double($val) }]
1327	SendCmd "polydata opacity $sval"
1328	}
1329	"volumeWireframe" {
1330	set bool $_settings($what)
1331	SendCmd "polydata wireframe $bool"
1332	}
1333	"volumeVisible" {
1334	set bool $_settings($what)
1335	SendCmd "polydata visible $bool"
1336	if { $bool } {
1337	Rappture::Tooltip::for $itk_component(volume) \
1338	"Hide the volume"
1339	} else {
1340	Rappture::Tooltip::for $itk_component(volume) \
1341	"Show the volume"
1342	}
1343	}
1344	"volumeLighting" {
1345	set bool $_settings($what)
1346	SendCmd "polydata lighting $bool"
1347	}
1348	"volumeEdges" {
1349	set bool $_settings($what)
1350	SendCmd "polydata edges $bool"
1351	}
1352	"axesVisible" {
1353	set bool $_settings($what)
1354	SendCmd "axis visible all $bool"
1355	}
1356	"axisLabelsVisible" {
1357	set bool $_settings($what)
1358	SendCmd "axis labels all $bool"
1359	}
1360	"axisMinorTicks" {
1361	set bool $_settings($what)
1362	SendCmd "axis minticks all $bool"
1363	}
1364	"axisXGrid" - "axisYGrid" - "axisZGrid" {
1365	set axis [string tolower [string range $what 4 4]]
1366	set bool $_settings($what)
1367	SendCmd "axis grid $axis $bool"
1368	}
1369	"axis-mode" {
1370	set mode [$itk_component(axismode) value]
1371	set mode [$itk_component(axismode) translate $mode]
1372	set _settings($what) $mode
1373	SendCmd "axis flymode $mode"
1374	}
1375	"cutplaneEdges" {
1376	set bool $_settings($what)
1377	SendCmd "cutplane edges $bool"
1378	}
1379	"cutplaneVisible" {
1380	set bool $_settings($what)
1381	SendCmd "cutplane visible $bool"
1382	}
1383	"cutplaneWireframe" {
1384	set bool $_settings($what)
1385	SendCmd "cutplane wireframe $bool"
1386	}
1387	"cutplaneLighting" {
1388	set bool $_settings($what)
1389	SendCmd "cutplane lighting $bool"
1390	}
1391	"cutplaneOpacity" {
1392	set val $_settings($what)
1393	set sval [expr { 0.01 * double($val) }]
1394	SendCmd "cutplane opacity $sval"
1395	}
1396	"cutplaneXVisible" - "cutplaneYVisible" - "cutplaneZVisible" {
1397	set axis [string tolower [string range $what 8 8]]
1398	set bool $_settings($what)
1399	if { $bool } {
1400	$itk_component(${axis}CutScale) configure -state normal \
1401	-troughcolor white
1402	} else {
1403	$itk_component(${axis}CutScale) configure -state disabled \
1404	-troughcolor grey82
1405	}
1406	SendCmd "cutplane axis $axis $bool"
1407	}
1408	"cutplaneXPosition" - "cutplaneYPosition" - "cutplaneZPosition" {
1409	set axis [string tolower [string range $what 8 8]]
1410	set pos [expr $_settings($what) * 0.01]
1411	SendCmd "cutplane slice ${axis} ${pos}"
1412	set _cutplanePending 0
1413	}
1414	"streamlinesSeedsVisible" {
1415	set bool $_settings($what)
1416	SendCmd "streamlines seed visible $bool"
1417	}
1418	"streamlinesNumSeeds" {
1419	set density $_settings($what)
1420	EventuallyReseed $density
1421	}
1422	"streamlinesVisible" {
1423	set bool $_settings($what)
1424	SendCmd "streamlines visible $bool"
1425	if { $bool } {
1426	Rappture::Tooltip::for $itk_component(streamlines) \
1427	"Hide the streamlines"
1428	} else {
1429	Rappture::Tooltip::for $itk_component(streamlines) \
1430	"Show the streamlines"
1431	}
1432	}
1433	"streamlinesMode" {
1434	set mode [$itk_component(streammode) value]
1435	set _settings(streamlinesMode) $mode
1436	switch -- $mode {
1437	"lines" {
1438	SendCmd "streamlines lines"
1439	}
1440	"ribbons" {
1441	SendCmd "streamlines ribbons 3 0"
1442	}
1443	"tubes" {
1444	SendCmd "streamlines tubes 5 3"
1445	}
1446	}
1447	}
1448	"streamlinesColormap" {
1449	set colormap [$itk_component(colormap) value]
1450	set _settings(streamlinesColormap) $colormap
1451	foreach dataset [CurrentDatasets -visible $_first] {
1452	foreach {dataobj comp} [split $dataset -] break
1453	ChangeColormap $dataobj $comp $colormap
1454	}
1455	set _legendPending 1
1456	}
1457	"streamlinesOpacity" {
1458	set val $_settings($what)
1459	set sval [expr { 0.01 * double($val) }]
1460	SendCmd "streamlines opacity $sval"
1461	}
1462	"streamlinesScale" {
1463	set val $_settings($what)
1464	set sval [expr { 0.01 * double($val) }]
1465	SendCmd "streamlines scale $sval $sval $sval"
1466	}
1467	"streamlinesLighting" {
1468	set bool $_settings($what)
1469	SendCmd "streamlines lighting $bool"
1470	}
1471	"field" {
1472	set label [$itk_component(field) value]
1473	set fname [$itk_component(field) translate $label]
1474	set _settings(field) $fname
1475	if { [info exists _fields($fname)] } {
1476	foreach { label units components } $_fields($fname) break
1477	if { $components > 1 } {
1478	set _colorMode vmag
1479	} else {
1480	set _colorMode scalar
1481	}
1482	set _curFldName $fname
1483	set _curFldLabel $label
1484	} else {
1485	puts stderr "unknown field \"$fname\""
1486	return
1487	}
1488	# Get the new limits because the field changed.
1489	if { ![info exists _limits($_curFldName)] } {
1490	SendCmd "dataset maprange all"
1491	} else {
1492	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1493	}
1494	SendCmd "streamlines colormode $_colorMode $_curFldName"
1495	SendCmd "cutplane colormode $_colorMode $_curFldName"
1496	DrawLegend
1497	}
1498	default {
1499	error "don't know how to fix $what"
1500	}
1501	}
1502	}
1503
1504	#
1505	# RequestLegend --
1506	#
1507	# Request a new legend from the server. The size of the legend
1508	# is determined from the height of the canvas. It will be rotated
1509	# to be vertical when drawn.
1510	#
1511	itcl::body Rappture::VtkStreamlinesViewer::RequestLegend {} {
1512	set font "Arial 8"
1513	set lineht [font metrics $font -linespace]
1514	set w 12
1515	set h [expr {$_height - 3 * ($lineht + 2)}]
1516	if { $h < 1 } {
1517	return
1518	}
1519	# Set the legend on the first streamlines dataset.
1520	foreach dataset [CurrentDatasets -visible $_first] {
1521	foreach {dataobj comp} [split $dataset -] break
1522	if { [info exists _dataset2style($dataset)] } {
1523	SendCmdNoWait \
1524	"legend $_dataset2style($dataset) $_colorMode $_curFldName {} $w $h 0"
1525	break;
1526	}
1527	}
1528	}
1529
1530	#
1531	# ChangeColormap --
1532	#
1533	itcl::body Rappture::VtkStreamlinesViewer::ChangeColormap {dataobj comp color} {
1534	set tag $dataobj-$comp
1535	if { ![info exist _style($tag)] } {
1536	error "no initial colormap"
1537	}
1538	array set style $_style($tag)
1539	set style(-color) $color
1540	set _style($tag) [array get style]
1541	SetColormap $dataobj $comp
1542	}
1543
1544	#
1545	# SetColormap --
1546	#
1547	itcl::body Rappture::VtkStreamlinesViewer::SetColormap { dataobj comp } {
1548	array set style {
1549	-color BCGYR
1550	-levels 6
1551	-opacity 1.0
1552	}
1553	set tag $dataobj-$comp
1554	if { ![info exists _initialStyle($tag)] } {
1555	# Save the initial component style.
1556	set _initialStyle($tag) [$dataobj style $comp]
1557	}
1558
1559	# Override defaults with initial style defined in xml.
1560	array set style $_initialStyle($tag)
1561
1562	if { ![info exists _style($tag)] } {
1563	set _style($tag) [array get style]
1564	}
1565	# Override initial style with current style.
1566	array set style $_style($tag)
1567
1568	set name "$style(-color):$style(-levels):$style(-opacity)"
1569	if { ![info exists _colormaps($name)] } {
1570	BuildColormap $name [array get style]
1571	set _colormaps($name) 1
1572	}
1573	if { ![info exists _dataset2style($tag)] \|\|
1574	$_dataset2style($tag) != $name } {
1575	SendCmd "streamlines colormap $name $tag"
1576	SendCmd "cutplane colormap $name $tag"
1577	set _dataset2style($tag) $name
1578	}
1579	}
1580
1581
1582	#
1583	# BuildColormap --
1584	#
1585	itcl::body Rappture::VtkStreamlinesViewer::BuildColormap { name styles } {
1586	array set style $styles
1587	set cmap [ColorsToColormap $style(-color)]
1588	if { [llength $cmap] == 0 } {
1589	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1590	}
1591	if { ![info exists _settings(volumeOpacity)] } {
1592	set _settings(volumeOpacity) $style(-opacity)
1593	}
1594	set max $_settings(volumeOpacity)
1595
1596	set wmap "0.0 1.0 1.0 1.0"
1597	SendCmd "colormap add $name { $cmap } { $wmap }"
1598	}
1599
1600	# ----------------------------------------------------------------------
1601	# CONFIGURATION OPTION: -plotbackground
1602	# ----------------------------------------------------------------------
1603	itcl::configbody Rappture::VtkStreamlinesViewer::plotbackground {
1604	if { [isconnected] } {
1605	set rgb [Color2RGB $itk_option(-plotbackground)]
1606	SendCmd "screen bgcolor $rgb"
1607	}
1608	}
1609
1610	# ----------------------------------------------------------------------
1611	# CONFIGURATION OPTION: -plotforeground
1612	# ----------------------------------------------------------------------
1613	itcl::configbody Rappture::VtkStreamlinesViewer::plotforeground {
1614	if { [isconnected] } {
1615	set rgb [Color2RGB $itk_option(-plotforeground)]
1616	SendCmd "axis color all $rgb"
1617	SendCmd "outline color $rgb"
1618	SendCmd "cutplane color $rgb"
1619	}
1620	}
1621
1622	itcl::body Rappture::VtkStreamlinesViewer::BuildVolumeTab {} {
1623
1624	set fg [option get $itk_component(hull) font Font]
1625	#set bfg [option get $itk_component(hull) boldFont Font]
1626
1627	set inner [$itk_component(main) insert end \
1628	-title "Volume Settings" \
1629	-icon [Rappture::icon volume-on]]
1630	$inner configure -borderwidth 4
1631
1632	checkbutton $inner.volume \
1633	-text "Show Volume" \
1634	-variable [itcl::scope _settings(volumeVisible)] \
1635	-command [itcl::code $this AdjustSetting volumeVisible] \
1636	-font "Arial 9"
1637
1638	checkbutton $inner.wireframe \
1639	-text "Show Wireframe" \
1640	-variable [itcl::scope _settings(volumeWireframe)] \
1641	-command [itcl::code $this AdjustSetting volumeWireframe] \
1642	-font "Arial 9"
1643
1644	checkbutton $inner.lighting \
1645	-text "Enable Lighting" \
1646	-variable [itcl::scope _settings(volumeLighting)] \
1647	-command [itcl::code $this AdjustSetting volumeLighting] \
1648	-font "Arial 9"
1649
1650	checkbutton $inner.edges \
1651	-text "Show Edges" \
1652	-variable [itcl::scope _settings(volumeEdges)] \
1653	-command [itcl::code $this AdjustSetting volumeEdges] \
1654	-font "Arial 9"
1655
1656	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1657	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1658	-variable [itcl::scope _settings(volumeOpacity)] \
1659	-width 10 \
1660	-showvalue off \
1661	-command [itcl::code $this AdjustSetting volumeOpacity]
1662
1663	blt::table $inner \
1664	0,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1665	1,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1666	2,0 $inner.edges -anchor w -pady 2 -cspan 3 \
1667	3,0 $inner.opacity_l -anchor w -pady 2 \
1668	3,1 $inner.opacity -fill x -pady 2
1669
1670	blt::table configure $inner r* c* -resize none
1671	blt::table configure $inner r4 c1 -resize expand
1672	}
1673
1674
1675	itcl::body Rappture::VtkStreamlinesViewer::BuildStreamsTab {} {
1676
1677	set fg [option get $itk_component(hull) font Font]
1678	#set bfg [option get $itk_component(hull) boldFont Font]
1679
1680	set inner [$itk_component(main) insert end \
1681	-title "Streams Settings" \
1682	-icon [Rappture::icon streamlines-on]]
1683	$inner configure -borderwidth 4
1684
1685	checkbutton $inner.streamlines \
1686	-text "Show Streamlines" \
1687	-variable [itcl::scope _settings(streamlinesVisible)] \
1688	-command [itcl::code $this AdjustSetting streamlinesVisible] \
1689	-font "Arial 9"
1690
1691	checkbutton $inner.lighting \
1692	-text "Enable Lighting" \
1693	-variable [itcl::scope _settings(streamlinesLighting)] \
1694	-command [itcl::code $this AdjustSetting streamlinesLighting] \
1695	-font "Arial 9"
1696
1697	checkbutton $inner.seeds \
1698	-text "Show Seeds" \
1699	-variable [itcl::scope _settings(streamlinesSeedsVisible)] \
1700	-command [itcl::code $this AdjustSetting streamlinesSeedsVisible] \
1701	-font "Arial 9"
1702
1703	label $inner.mode_l -text "Mode" -font "Arial 9"
1704	itk_component add streammode {
1705	Rappture::Combobox $inner.mode -width 10 -editable no
1706	}
1707	$inner.mode choices insert end \
1708	"lines" "lines" \
1709	"ribbons" "ribbons" \
1710	"tubes" "tubes"
1711	$itk_component(streammode) value $_settings(streamlinesMode)
1712	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting streamlinesMode]
1713
1714	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1715	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1716	-variable [itcl::scope _settings(streamlinesOpacity)] \
1717	-width 10 \
1718	-showvalue off \
1719	-command [itcl::code $this AdjustSetting streamlinesOpacity]
1720
1721	label $inner.density_l -text "No. Seeds" -font "Arial 9"
1722	::scale $inner.density -from 1 -to 1000 -orient horizontal \
1723	-variable [itcl::scope _settings(streamlinesNumSeeds)] \
1724	-width 10 \
1725	-showvalue on \
1726	-command [itcl::code $this AdjustSetting streamlinesNumSeeds]
1727
1728	label $inner.scale_l -text "Scale" -font "Arial 9"
1729	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1730	-variable [itcl::scope _settings(streamlinesScale)] \
1731	-width 10 \
1732	-showvalue off \
1733	-command [itcl::code $this AdjustSetting streamlinesScale]
1734
1735	label $inner.field_l -text "Color by" -font "Arial 9"
1736	itk_component add field {
1737	Rappture::Combobox $inner.field -width 10 -editable no
1738	}
1739	bind $inner.field <<Value>> \
1740	[itcl::code $this AdjustSetting field]
1741
1742	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1743	itk_component add colormap {
1744	Rappture::Combobox $inner.colormap -width 10 -editable no
1745	}
1746	$inner.colormap choices insert end [GetColormapList]
1747
1748	$itk_component(colormap) value "BCGYR"
1749	bind $inner.colormap <<Value>> \
1750	[itcl::code $this AdjustSetting streamlinesColormap]
1751
1752	blt::table $inner \
1753	0,0 $inner.field_l -anchor w -pady 2 \
1754	0,1 $inner.field -fill x -pady 2 \
1755	1,0 $inner.colormap_l -anchor w -pady 2 \
1756	1,1 $inner.colormap -fill x -pady 2 \
1757	2,0 $inner.mode_l -anchor w -pady 2 \
1758	2,1 $inner.mode -fill x -pady 2 \
1759	3,0 $inner.opacity_l -anchor w -pady 2 \
1760	3,1 $inner.opacity -fill x -pady 2 \
1761	5,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1762	6,0 $inner.seeds -anchor w -pady 2 -cspan 2 \
1763	7,0 $inner.density_l -anchor w -pady 2 \
1764	7,1 $inner.density -fill x -pady 2 \
1765
1766	blt::table configure $inner r* c* -resize none
1767	blt::table configure $inner r10 c1 c2 -resize expand
1768	}
1769
1770	itcl::body Rappture::VtkStreamlinesViewer::BuildAxisTab {} {
1771
1772	set fg [option get $itk_component(hull) font Font]
1773	#set bfg [option get $itk_component(hull) boldFont Font]
1774
1775	set inner [$itk_component(main) insert end \
1776	-title "Axis Settings" \
1777	-icon [Rappture::icon axis2]]
1778	$inner configure -borderwidth 4
1779
1780	checkbutton $inner.visible \
1781	-text "Axes" \
1782	-variable [itcl::scope _settings(axesVisible)] \
1783	-command [itcl::code $this AdjustSetting axesVisible] \
1784	-font "Arial 9"
1785
1786	checkbutton $inner.labels \
1787	-text "Axis Labels" \
1788	-variable [itcl::scope _settings(axisLabelsVisible)] \
1789	-command [itcl::code $this AdjustSetting axisLabelsVisible] \
1790	-font "Arial 9"
1791	label $inner.grid_l -text "Grid" -font "Arial 9"
1792	checkbutton $inner.xgrid \
1793	-text "X" \
1794	-variable [itcl::scope _settings(axisXGrid)] \
1795	-command [itcl::code $this AdjustSetting axisXGrid] \
1796	-font "Arial 9"
1797	checkbutton $inner.ygrid \
1798	-text "Y" \
1799	-variable [itcl::scope _settings(axisYGrid)] \
1800	-command [itcl::code $this AdjustSetting axisYGrid] \
1801	-font "Arial 9"
1802	checkbutton $inner.zgrid \
1803	-text "Z" \
1804	-variable [itcl::scope _settings(axisZGrid)] \
1805	-command [itcl::code $this AdjustSetting axisZGrid] \
1806	-font "Arial 9"
1807	checkbutton $inner.minorticks \
1808	-text "Minor Ticks" \
1809	-variable [itcl::scope _settings(axisMinorTicks)] \
1810	-command [itcl::code $this AdjustSetting axisMinorTicks] \
1811	-font "Arial 9"
1812
1813	label $inner.mode_l -text "Mode" -font "Arial 9"
1814
1815	itk_component add axismode {
1816	Rappture::Combobox $inner.mode -width 10 -editable no
1817	}
1818	$inner.mode choices insert end \
1819	"static_triad" "static" \
1820	"closest_triad" "closest" \
1821	"furthest_triad" "farthest" \
1822	"outer_edges" "outer"
1823	$itk_component(axismode) value "static"
1824	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axis-mode]
1825
1826	blt::table $inner \
1827	0,0 $inner.visible -anchor w -cspan 4 \
1828	1,0 $inner.labels -anchor w -cspan 4 \
1829	2,0 $inner.minorticks -anchor w -cspan 4 \
1830	4,0 $inner.grid_l -anchor w \
1831	4,1 $inner.xgrid -anchor w \
1832	4,2 $inner.ygrid -anchor w \
1833	4,3 $inner.zgrid -anchor w \
1834	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1835	5,1 $inner.mode -fill x -cspan 3
1836
1837	blt::table configure $inner r* c* -resize none
1838	blt::table configure $inner r7 c6 -resize expand
1839	blt::table configure $inner r3 -height 0.125i
1840	}
1841
1842	itcl::body Rappture::VtkStreamlinesViewer::BuildCameraTab {} {
1843	set inner [$itk_component(main) insert end \
1844	-title "Camera Settings" \
1845	-icon [Rappture::icon camera]]
1846	$inner configure -borderwidth 4
1847
1848	label $inner.view_l -text "view" -font "Arial 9"
1849	set f [frame $inner.view]
1850	foreach side { front back left right top bottom } {
1851	button $f.$side -image [Rappture::icon view$side] \
1852	-command [itcl::code $this SetOrientation $side]
1853	Rappture::Tooltip::for $f.$side "Change the view to $side"
1854	pack $f.$side -side left
1855	}
1856
1857	blt::table $inner \
1858	0,0 $inner.view_l -anchor e -pady 2 \
1859	0,1 $inner.view -anchor w -pady 2
1860
1861	set labels { qx qy qz qw xpan ypan zoom }
1862	set row 1
1863	foreach tag $labels {
1864	label $inner.${tag}label -text $tag -font "Arial 9"
1865	entry $inner.${tag} -font "Arial 9" -bg white \
1866	-textvariable [itcl::scope _view(-$tag)]
1867	bind $inner.${tag} <Return> \
1868	[itcl::code $this camera set -${tag}]
1869	bind $inner.${tag} <KP_Enter> \
1870	[itcl::code $this camera set -${tag}]
1871	blt::table $inner \
1872	$row,0 $inner.${tag}label -anchor e -pady 2 \
1873	$row,1 $inner.${tag} -anchor w -pady 2
1874	blt::table configure $inner r$row -resize none
1875	incr row
1876	}
1877	checkbutton $inner.ortho \
1878	-text "Orthographic Projection" \
1879	-variable [itcl::scope _view(-ortho)] \
1880	-command [itcl::code $this camera set -ortho] \
1881	-font "Arial 9"
1882	blt::table $inner \
1883	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1884	blt::table configure $inner r$row -resize none
1885	incr row
1886
1887	blt::table configure $inner c* r* -resize none
1888	blt::table configure $inner c2 -resize expand
1889	blt::table configure $inner r$row -resize expand
1890	}
1891
1892	itcl::body Rappture::VtkStreamlinesViewer::BuildCutplaneTab {} {
1893
1894	set fg [option get $itk_component(hull) font Font]
1895
1896	set inner [$itk_component(main) insert end \
1897	-title "Cutplane Settings" \
1898	-icon [Rappture::icon cutbutton]]
1899
1900	$inner configure -borderwidth 4
1901
1902	checkbutton $inner.visible \
1903	-text "Show Cutplanes" \
1904	-variable [itcl::scope _settings(cutplaneVisible)] \
1905	-command [itcl::code $this AdjustSetting cutplaneVisible] \
1906	-font "Arial 9"
1907
1908	checkbutton $inner.wireframe \
1909	-text "Show Wireframe" \
1910	-variable [itcl::scope _settings(cutplaneWireframe)] \
1911	-command [itcl::code $this AdjustSetting cutplaneWireframe] \
1912	-font "Arial 9"
1913
1914	checkbutton $inner.lighting \
1915	-text "Enable Lighting" \
1916	-variable [itcl::scope _settings(cutplaneLighting)] \
1917	-command [itcl::code $this AdjustSetting cutplaneLighting] \
1918	-font "Arial 9"
1919
1920	checkbutton $inner.edges \
1921	-text "Show Edges" \
1922	-variable [itcl::scope _settings(cutplaneEdges)] \
1923	-command [itcl::code $this AdjustSetting cutplaneEdges] \
1924	-font "Arial 9"
1925
1926	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1927	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1928	-variable [itcl::scope _settings(cutplaneOpacity)] \
1929	-width 10 \
1930	-showvalue off \
1931	-command [itcl::code $this AdjustSetting cutplaneOpacity]
1932	$inner.opacity set $_settings(cutplaneOpacity)
1933
1934	# X-value slicer...
1935	itk_component add xCutButton {
1936	Rappture::PushButton $inner.xbutton \
1937	-onimage [Rappture::icon x-cutplane-red] \
1938	-offimage [Rappture::icon x-cutplane-red] \
1939	-command [itcl::code $this AdjustSetting cutplaneXVisible] \
1940	-variable [itcl::scope _settings(cutplaneXVisible)]
1941	}
1942	Rappture::Tooltip::for $itk_component(xCutButton) \
1943	"Toggle the X-axis cutplane on/off"
1944	$itk_component(xCutButton) select
1945
1946	itk_component add xCutScale {
1947	::scale $inner.xval -from 100 -to 0 \
1948	-width 10 -orient vertical -showvalue yes \
1949	-borderwidth 1 -highlightthickness 0 \
1950	-command [itcl::code $this EventuallySetCutplane x] \
1951	-variable [itcl::scope _settings(cutplaneXPosition)] \
1952	-foreground red3 -font "Arial 9 bold"
1953	} {
1954	usual
1955	ignore -borderwidth -highlightthickness -foreground -font
1956	}
1957	# Set the default cutplane value before disabling the scale.
1958	$itk_component(xCutScale) set 50
1959	$itk_component(xCutScale) configure -state disabled
1960	Rappture::Tooltip::for $itk_component(xCutScale) \
1961	"@[itcl::code $this Slice tooltip x]"
1962
1963	# Y-value slicer...
1964	itk_component add yCutButton {
1965	Rappture::PushButton $inner.ybutton \
1966	-onimage [Rappture::icon y-cutplane-green] \
1967	-offimage [Rappture::icon y-cutplane-green] \
1968	-command [itcl::code $this AdjustSetting cutplaneYVisible] \
1969	-variable [itcl::scope _settings(cutplaneYVisible)]
1970	}
1971	Rappture::Tooltip::for $itk_component(yCutButton) \
1972	"Toggle the Y-axis cutplane on/off"
1973	$itk_component(yCutButton) select
1974
1975	itk_component add yCutScale {
1976	::scale $inner.yval -from 100 -to 0 \
1977	-width 10 -orient vertical -showvalue yes \
1978	-borderwidth 1 -highlightthickness 0 \
1979	-command [itcl::code $this EventuallySetCutplane y] \
1980	-variable [itcl::scope _settings(cutplaneYPosition)] \
1981	-foreground green3 -font "Arial 9 bold"
1982	} {
1983	usual
1984	ignore -borderwidth -highlightthickness -foreground -font
1985	}
1986	Rappture::Tooltip::for $itk_component(yCutScale) \
1987	"@[itcl::code $this Slice tooltip y]"
1988	# Set the default cutplane value before disabling the scale.
1989	$itk_component(yCutScale) set 50
1990	$itk_component(yCutScale) configure -state disabled
1991
1992	# Z-value slicer...
1993	itk_component add zCutButton {
1994	Rappture::PushButton $inner.zbutton \
1995	-onimage [Rappture::icon z-cutplane-blue] \
1996	-offimage [Rappture::icon z-cutplane-blue] \
1997	-command [itcl::code $this AdjustSetting cutplaneZVisible] \
1998	-variable [itcl::scope _settings(cutplaneZVisible)]
1999	}
2000	Rappture::Tooltip::for $itk_component(zCutButton) \
2001	"Toggle the Z-axis cutplane on/off"
2002	$itk_component(zCutButton) select
2003
2004	itk_component add zCutScale {
2005	::scale $inner.zval -from 100 -to 0 \
2006	-width 10 -orient vertical -showvalue yes \
2007	-borderwidth 1 -highlightthickness 0 \
2008	-command [itcl::code $this EventuallySetCutplane z] \
2009	-variable [itcl::scope _settings(cutplaneZPosition)] \
2010	-foreground blue3 -font "Arial 9 bold"
2011	} {
2012	usual
2013	ignore -borderwidth -highlightthickness -foreground -font
2014	}
2015	$itk_component(zCutScale) set 50
2016	$itk_component(zCutScale) configure -state disabled
2017	Rappture::Tooltip::for $itk_component(zCutScale) \
2018	"@[itcl::code $this Slice tooltip z]"
2019
2020	blt::table $inner \
2021	0,0 $inner.lighting -anchor w -pady 2 -cspan 4 \
2022	1,0 $inner.wireframe -anchor w -pady 2 -cspan 4 \
2023	2,0 $inner.edges -anchor w -pady 2 -cspan 4 \
2024	3,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2025	3,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2026	4,0 $itk_component(xCutButton) -anchor w -padx 2 -pady 2 \
2027	5,0 $itk_component(yCutButton) -anchor w -padx 2 -pady 2 \
2028	6,0 $itk_component(zCutButton) -anchor w -padx 2 -pady 2 \
2029	4,1 $itk_component(xCutScale) -fill y -rspan 4 \
2030	4,2 $itk_component(yCutScale) -fill y -rspan 4 \
2031	4,3 $itk_component(zCutScale) -fill y -rspan 4 \
2032
2033	blt::table configure $inner r* c* -resize none
2034	blt::table configure $inner r7 c4 -resize expand
2035	}
2036
2037	#
2038	# camera --
2039	#
2040	itcl::body Rappture::VtkStreamlinesViewer::camera {option args} {
2041	switch -- $option {
2042	"show" {
2043	puts [array get _view]
2044	}
2045	"set" {
2046	set what [lindex $args 0]
2047	set x $_view($what)
2048	set code [catch { string is double $x } result]
2049	if { $code != 0 \|\| !$result } {
2050	return
2051	}
2052	switch -- $what {
2053	"-ortho" {
2054	if {$_view($what)} {
2055	SendCmd "camera mode ortho"
2056	} else {
2057	SendCmd "camera mode persp"
2058	}
2059	}
2060	"-xpan" - "-ypan" {
2061	PanCamera
2062	}
2063	"-qx" - "-qy" - "-qz" - "-qw" {
2064	set q [ViewToQuaternion]
2065	$_arcball quaternion $q
2066	EventuallyRotate $q
2067	}
2068	"-zoom" {
2069	SendCmd "camera zoom $_view($what)"
2070	}
2071	}
2072	}
2073	}
2074	}
2075
2076	itcl::body Rappture::VtkStreamlinesViewer::GetVtkData { args } {
2077	set bytes ""
2078	foreach dataobj [get] {
2079	foreach comp [$dataobj components] {
2080	set tag $dataobj-$comp
2081	set contents [$dataobj vtkdata $comp]
2082	append bytes "$contents\n"
2083	}
2084	}
2085	return [list .vtk $bytes]
2086	}
2087
2088	itcl::body Rappture::VtkStreamlinesViewer::GetImage { args } {
2089	if { [image width $_image(download)] > 0 &&
2090	[image height $_image(download)] > 0 } {
2091	set bytes [$_image(download) data -format "jpeg -quality 100"]
2092	set bytes [Rappture::encoding::decode -as b64 $bytes]
2093	return [list .jpg $bytes]
2094	}
2095	return ""
2096	}
2097
2098	itcl::body Rappture::VtkStreamlinesViewer::BuildDownloadPopup { popup command } {
2099	Rappture::Balloon $popup \
2100	-title "[Rappture::filexfer::label downloadWord] as..."
2101	set inner [$popup component inner]
2102	label $inner.summary -text "" -anchor w
2103	radiobutton $inner.vtk_button -text "VTK data file" \
2104	-variable [itcl::scope _downloadPopup(format)] \
2105	-font "Helvetica 9 " \
2106	-value vtk
2107	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2108	radiobutton $inner.image_button -text "Image File" \
2109	-variable [itcl::scope _downloadPopup(format)] \
2110	-value image
2111	Rappture::Tooltip::for $inner.image_button \
2112	"Save as digital image."
2113
2114	button $inner.ok -text "Save" \
2115	-highlightthickness 0 -pady 2 -padx 3 \
2116	-command $command \
2117	-compound left \
2118	-image [Rappture::icon download]
2119
2120	button $inner.cancel -text "Cancel" \
2121	-highlightthickness 0 -pady 2 -padx 3 \
2122	-command [list $popup deactivate] \
2123	-compound left \
2124	-image [Rappture::icon cancel]
2125
2126	blt::table $inner \
2127	0,0 $inner.summary -cspan 2 \
2128	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2129	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2130	4,1 $inner.cancel -width .9i -fill y \
2131	4,0 $inner.ok -padx 2 -width .9i -fill y
2132	blt::table configure $inner r3 -height 4
2133	blt::table configure $inner r4 -pady 4
2134	raise $inner.image_button
2135	$inner.vtk_button invoke
2136	return $inner
2137	}
2138
2139	itcl::body Rappture::VtkStreamlinesViewer::SetObjectStyle { dataobj comp } {
2140	# Parse style string.
2141	set tag $dataobj-$comp
2142	set style [$dataobj style $comp]
2143	array set settings {
2144	-color \#808080
2145	-edges 0
2146	-edgecolor black
2147	-linewidth 1.0
2148	-opacity 0.4
2149	-wireframe 0
2150	-lighting 1
2151	-seeds 1
2152	-seedcolor white
2153	-visible 1
2154	}
2155	if { $dataobj != $_first } {
2156	set settings(-opacity) 1
2157	}
2158	array set settings $style
2159	StartBufferingCommands
2160	SendCmd "streamlines add $tag"
2161	SendCmd "streamlines seed visible off $tag"
2162	set seeds [$dataobj hints seeds]
2163	if { $seeds != "" && ![info exists _seeds($dataobj)] } {
2164	set length [string length $seeds]
2165	SendCmd "streamlines seed fmesh 200 data follows $length $tag"
2166	append _outbuf $seeds
2167	set _seeds($dataobj) 1
2168	}
2169	SendCmd "cutplane add $tag"
2170	SendCmd "polydata add $tag"
2171	SendCmd "polydata colormode constant {} $tag"
2172	set _settings(volumeEdges) $settings(-edges)
2173	set _settings(volumeLighting) $settings(-lighting)
2174	set _settings(volumeOpacity) $settings(-opacity)
2175	set _settings(volumeWireframe) $settings(-wireframe)
2176	set _settings(volumeOpacity) [expr $settings(-opacity) * 100.0]
2177	StopBufferingCommands
2178	SetColormap $dataobj $comp
2179	}
2180
2181	itcl::body Rappture::VtkStreamlinesViewer::IsValidObject { dataobj } {
2182	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2183	return 0
2184	}
2185	return 1
2186	}
2187
2188	# ----------------------------------------------------------------------
2189	# USAGE: ReceiveLegend <colormap> <title> <vmin> <vmax> <size>
2190	#
2191	# Invoked automatically whenever the "legend" command comes in from
2192	# the rendering server. Indicates that binary image data with the
2193	# specified <size> will follow.
2194	# ----------------------------------------------------------------------
2195	itcl::body Rappture::VtkStreamlinesViewer::ReceiveLegend { colormap title vmin vmax size } {
2196	set _legendPending 0
2197	set _title $title
2198	regsub {\(mag\)} $title "" _title
2199	if { [IsConnected] } {
2200	set bytes [ReceiveBytes $size]
2201	if { ![info exists _image(legend)] } {
2202	set _image(legend) [image create photo]
2203	}
2204	$_image(legend) configure -data $bytes
2205	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2206	if { [catch {DrawLegend} errs] != 0 } {
2207	puts stderr errs=$errs
2208	}
2209	}
2210	}
2211
2212	#
2213	# DrawLegend --
2214	#
2215	# Draws the legend in it's own canvas which resides to the right
2216	# of the contour plot area.
2217	#
2218	itcl::body Rappture::VtkStreamlinesViewer::DrawLegend {} {
2219	set fname $_curFldName
2220	set c $itk_component(view)
2221	set w [winfo width $c]
2222	set h [winfo height $c]
2223	set font "Arial 8"
2224	set lineht [font metrics $font -linespace]
2225
2226	if { [info exists _fields($fname)] } {
2227	foreach { title units } $_fields($fname) break
2228	if { $units != "" } {
2229	set title [format "%s (%s)" $title $units]
2230	}
2231	} else {
2232	set title $fname
2233	}
2234	if { $_settings(legendVisible) } {
2235	set x [expr $w - 2]
2236	if { [$c find withtag "legend"] == "" } {
2237	set y 2
2238	$c create text $x $y \
2239	-anchor ne \
2240	-fill $itk_option(-plotforeground) -tags "title legend" \
2241	-font $font
2242	incr y $lineht
2243	$c create text $x $y \
2244	-anchor ne \
2245	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2246	-font $font
2247	incr y $lineht
2248	$c create image $x $y \
2249	-anchor ne \
2250	-image $_image(legend) -tags "colormap legend"
2251	$c create text $x [expr {$h-2}] \
2252	-anchor se \
2253	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2254	-font $font
2255	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2256	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2257	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2258	}
2259	$c bind title <ButtonPress> [itcl::code $this Combo post]
2260	$c bind title <Enter> [itcl::code $this Combo activate]
2261	$c bind title <Leave> [itcl::code $this Combo deactivate]
2262	# Reset the item coordinates according the current size of the plot.
2263	$c itemconfigure title -text $title
2264	if { [info exists _limits($_curFldName)] } {
2265	foreach {vmin vmax} $_limits($_curFldName) break
2266	$c itemconfigure vmin -text [format %g $vmin]
2267	$c itemconfigure vmax -text [format %g $vmax]
2268	}
2269	set y 2
2270	$c coords title $x $y
2271	incr y $lineht
2272	$c coords vmax $x $y
2273	incr y $lineht
2274	$c coords colormap $x $y
2275	$c coords vmin $x [expr {$h - 2}]
2276	}
2277	}
2278
2279	#
2280	# EnterLegend --
2281	#
2282	itcl::body Rappture::VtkStreamlinesViewer::EnterLegend { x y } {
2283	SetLegendTip $x $y
2284	}
2285
2286	#
2287	# MotionLegend --
2288	#
2289	itcl::body Rappture::VtkStreamlinesViewer::MotionLegend { x y } {
2290	Rappture::Tooltip::tooltip cancel
2291	set c $itk_component(view)
2292	SetLegendTip $x $y
2293	}
2294
2295	#
2296	# LeaveLegend --
2297	#
2298	itcl::body Rappture::VtkStreamlinesViewer::LeaveLegend { } {
2299	Rappture::Tooltip::tooltip cancel
2300	.rappturetooltip configure -icon ""
2301	}
2302
2303	#
2304	# SetLegendTip --
2305	#
2306	itcl::body Rappture::VtkStreamlinesViewer::SetLegendTip { x y } {
2307	set c $itk_component(view)
2308	set w [winfo width $c]
2309	set h [winfo height $c]
2310	set font "Arial 8"
2311	set lineht [font metrics $font -linespace]
2312
2313	set imgHeight [image height $_image(legend)]
2314	set coords [$c coords colormap]
2315	set imgX [expr $w - [image width $_image(legend)] - 2]
2316	set imgY [expr $y - 2 * ($lineht + 2)]
2317
2318	if { [info exists _fields($_title)] } {
2319	foreach { title units } $_fields($_title) break
2320	if { $units != "" } {
2321	set title [format "%s (%s)" $title $units]
2322	}
2323	} else {
2324	set title $_title
2325	}
2326	# Make a swatch of the selected color
2327	if { [catch { $_image(legend) get 10 $imgY } pixel] != 0 } {
2328	#puts stderr "out of range: $imgY"
2329	return
2330	}
2331	if { ![info exists _image(swatch)] } {
2332	set _image(swatch) [image create photo -width 24 -height 24]
2333	}
2334	set color [eval format "\#%02x%02x%02x" $pixel]
2335	$_image(swatch) put black -to 0 0 23 23
2336	$_image(swatch) put $color -to 1 1 22 22
2337	.rappturetooltip configure -icon $_image(swatch)
2338
2339	# Compute the value of the point
2340	if { [info exists _limits($_curFldName)] } {
2341	foreach {vmin vmax} $_limits($_curFldName) break
2342	set t [expr 1.0 - (double($imgY) / double($imgHeight-1))]
2343	set value [expr $t * ($vmax - $vmin) + $vmin]
2344	} else {
2345	set value 0.0
2346	}
2347	set tipx [expr $x + 15]
2348	set tipy [expr $y - 5]
2349	Rappture::Tooltip::text $c "$title $value"
2350	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2351	}
2352
2353	# ----------------------------------------------------------------------
2354	# USAGE: Slice move x\|y\|z <newval>
2355	#
2356	# Called automatically when the user drags the slider to move the
2357	# cut plane that slices 3D data. Gets the current value from the
2358	# slider and moves the cut plane to the appropriate point in the
2359	# data set.
2360	# ----------------------------------------------------------------------
2361	itcl::body Rappture::VtkStreamlinesViewer::Slice {option args} {
2362	switch -- $option {
2363	"move" {
2364	set axis [lindex $args 0]
2365	set newval [lindex $args 1]
2366	if {[llength $args] != 2} {
2367	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2368	}
2369	set newpos [expr {0.01*$newval}]
2370	SendCmd "cutplane slice $axis $newpos"
2371	}
2372	"tooltip" {
2373	set axis [lindex $args 0]
2374	set val [$itk_component(${axis}CutScale) get]
2375	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2376	}
2377	default {
2378	error "bad option \"$option\": should be axis, move, or tooltip"
2379	}
2380	}
2381	}
2382
2383	# ----------------------------------------------------------------------
2384	# USAGE: _dropdown post
2385	# USAGE: _dropdown unpost
2386	# USAGE: _dropdown select
2387	#
2388	# Used internally to handle the dropdown list for this combobox. The
2389	# post/unpost options are invoked when the list is posted or unposted
2390	# to manage the relief of the controlling button. The select option
2391	# is invoked whenever there is a selection from the list, to assign
2392	# the value back to the gauge.
2393	# ----------------------------------------------------------------------
2394	itcl::body Rappture::VtkStreamlinesViewer::Combo {option} {
2395	set c $itk_component(view)
2396	switch -- $option {
2397	post {
2398	foreach { x1 y1 x2 y2 } [$c bbox title] break
2399	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2400	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2401	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2402	tk_popup $itk_component(fieldmenu) $x $y
2403	}
2404	activate {
2405	$c itemconfigure title -fill red
2406	}
2407	deactivate {
2408	$c itemconfigure title -fill white
2409	}
2410	invoke {
2411	$itk_component(field) value $_curFldLabel
2412	AdjustSetting field
2413	}
2414	default {
2415	error "bad option \"$option\": should be post, unpost, select"
2416	}
2417	}
2418	}
2419
2420	itcl::body Rappture::VtkStreamlinesViewer::SetOrientation { side } {
2421	array set positions {
2422	front "1 0 0 0"
2423	back "0 0 1 0"
2424	left "0.707107 0 -0.707107 0"
2425	right "0.707107 0 0.707107 0"
2426	top "0.707107 -0.707107 0 0"
2427	bottom "0.707107 0.707107 0 0"
2428	}
2429	foreach name { -qw -qx -qy -qz } value $positions($side) {
2430	set _view($name) $value
2431	}
2432	set q [ViewToQuaternion]
2433	$_arcball quaternion $q
2434	SendCmd "camera orient $q"
2435	SendCmd "camera reset"
2436	set _view(-xpan) 0
2437	set _view(-ypan) 0
2438	set _view(-zoom) 1.0
2439	}

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