Context Navigation

source: branches/1.4/gui/scripts/vtkstreamlinesviewer.tcl @ 5766

Last change on this file since 5766 was 5766, checked in by ldelgass, 9 years ago
Merge r5758:r5765 from trunk
File size: 85.8 KB

Line
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 BuildSurfaceTab {}
73	private method DrawLegend {}
74	private method Combo { option }
75	private method Connect {}
76	private method CurrentDatasets {args}
77	private method Disconnect {}
78	private method DoResize {}
79	private method DoReseed {}
80	private method DoRotate {}
81	private method EnterLegend { x y }
82	private method EventuallyResize { w h }
83	private method EventuallyReseed { numPoints }
84	private method EventuallyRotate { q }
85	private method EventuallySetCutplane { axis args }
86	private method GetImage { args }
87	private method GetVtkData { args }
88	private method InitSettings { args }
89	private method IsValidObject { dataobj }
90	private method LeaveLegend {}
91	private method MotionLegend { x y }
92	private method Pan {option x y}
93	private method PanCamera {}
94	private method Pick {x y}
95	private method QuaternionToView { q } {
96	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
97	}
98	private method Rebuild {}
99	private method ReceiveDataset { args }
100	private method ReceiveImage { args }
101	private method ReceiveLegend { colormap title vmin vmax size }
102	private method RequestLegend {}
103	private method Rotate {option x y}
104	private method SetColormap { dataobj comp }
105	private method ChangeColormap { dataobj comp color }
106	private method SetLegendTip { x y }
107	private method SetObjectStyle { dataobj comp }
108	private method Slice {option args}
109	private method SetOrientation { side }
110	private method ViewToQuaternion {} {
111	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
112	}
113	private method Zoom {option}
114
115	private variable _arcball ""
116
117	private variable _dlist "" ; # list of data objects
118	private variable _obj2ovride ; # maps dataobj => style override
119	private variable _datasets ; # contains all the dataobj-component
120	; # datasets in the server
121	private variable _colormaps ; # contains all the colormaps
122	; # in the server.
123	private variable _dataset2style ;# maps dataobj-component to transfunc
124
125	private variable _click ; # info used for rotate operations
126	private variable _limits ; # autoscale min/max for all axes
127	private variable _view ; # view params for 3D view
128	private variable _settings
129	private variable _style; # Array of current component styles.
130	private variable _initialStyle; # Array of initial component styles.
131	private variable _reset 1; # Connection to server has been reset.
132
133	private variable _first "" ; # This is the topmost dataset.
134	private variable _start 0
135	private variable _title ""
136	private variable _seeds
137	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 _fields
145	private variable _curFldName ""
146	private variable _curFldLabel ""
147	private variable _field ""
148	private variable _numSeeds 200
149	private variable _colorMode "vmag";# Mode of colormap (vmag or scalar)
150
151	private common _downloadPopup; # download options from popup
152	private common _hardcopy
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	set _serverType "vtkvis"
165
166	EnableWaitDialog 2000
167
168	# Rebuild event
169	$_dispatcher register !rebuild
170	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
171
172	# Resize event
173	$_dispatcher register !resize
174	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
175
176	# Reseed event
177	$_dispatcher register !reseed
178	$_dispatcher dispatch $this !reseed "[itcl::code $this DoReseed]; list"
179
180	# Rotate event
181	$_dispatcher register !rotate
182	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
183
184	# Legend event
185	$_dispatcher register !legend
186	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
187
188	# X-Cutplane event
189	$_dispatcher register !xcutplane
190	$_dispatcher dispatch $this !xcutplane \
191	"[itcl::code $this AdjustSetting -cutplanexposition]; list"
192
193	# Y-Cutplane event
194	$_dispatcher register !ycutplane
195	$_dispatcher dispatch $this !ycutplane \
196	"[itcl::code $this AdjustSetting -cutplaneyposition]; list"
197
198	# Z-Cutplane event
199	$_dispatcher register !zcutplane
200	$_dispatcher dispatch $this !zcutplane \
201	"[itcl::code $this AdjustSetting -cutplanezposition]; list"
202
203	#
204	# Populate parser with commands handle incoming requests
205	#
206	$_parser alias image [itcl::code $this ReceiveImage]
207	$_parser alias dataset [itcl::code $this ReceiveDataset]
208	$_parser alias legend [itcl::code $this ReceiveLegend]
209
210	# Initialize the view to some default parameters.
211	array set _view {
212	-ortho 0
213	-qw 0.853553
214	-qx -0.353553
215	-qy 0.353553
216	-qz 0.146447
217	-xpan 0
218	-ypan 0
219	-zoom 1.0
220	}
221	set _arcball [blt::arcball create 100 100]
222	$_arcball quaternion [ViewToQuaternion]
223
224	array set _settings [subst {
225	-axesvisible 1
226	-axislabelsvisible 1
227	-axisminorticks 1
228	-axismode "static"
229	-cutplaneedges 0
230	-cutplanelighting 1
231	-cutplaneopacity 100
232	-cutplanevisible 0
233	-cutplanewireframe 0
234	-cutplanexposition 50
235	-cutplanexvisible 1
236	-cutplaneyposition 50
237	-cutplaneyvisible 1
238	-cutplanezposition 50
239	-cutplanezvisible 1
240	-legendvisible 1
241	-streamlineslighting 1
242	-streamlinesmode lines
243	-streamlinesnumseeds 200
244	-streamlinesopacity 100
245	-streamlineslength 70
246	-streamlinesseedsvisible 0
247	-streamlinesvisible 1
248	-surfaceedges 0
249	-surfacelighting 1
250	-surfaceopacity 40
251	-surfacevisible 1
252	-surfacewireframe 0
253	-xgrid 0
254	-ygrid 0
255	-zgrid 0
256	}]
257
258	itk_component add view {
259	canvas $itk_component(plotarea).view \
260	-highlightthickness 0 -borderwidth 0
261	} {
262	usual
263	ignore -highlightthickness -borderwidth -background
264	}
265
266	itk_component add fieldmenu {
267	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
268	-tearoff no
269	} {
270	usual
271	ignore -background -foreground -relief -tearoff
272	}
273	set c $itk_component(view)
274	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
275	bind $c <4> [itcl::code $this Zoom in 0.25]
276	bind $c <5> [itcl::code $this Zoom out 0.25]
277	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
278	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
279	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
280	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
281	bind $c <Enter> "focus %W"
282	bind $c <Control-F1> [itcl::code $this ToggleConsole]
283
284	# Fix the scrollregion in case we go off screen
285	$c configure -scrollregion [$c bbox all]
286
287	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
288	set _map(cwidth) -1
289	set _map(cheight) -1
290	set _map(zoom) 1.0
291	set _map(original) ""
292
293	set f [$itk_component(main) component controls]
294	itk_component add reset {
295	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
296	-highlightthickness 0 \
297	-image [Rappture::icon reset-view] \
298	-command [itcl::code $this Zoom reset]
299	} {
300	usual
301	ignore -highlightthickness
302	}
303	pack $itk_component(reset) -side top -padx 2 -pady 2
304	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
305
306	itk_component add zoomin {
307	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
308	-highlightthickness 0 \
309	-image [Rappture::icon zoom-in] \
310	-command [itcl::code $this Zoom in]
311	} {
312	usual
313	ignore -highlightthickness
314	}
315	pack $itk_component(zoomin) -side top -padx 2 -pady 2
316	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
317
318	itk_component add zoomout {
319	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
320	-highlightthickness 0 \
321	-image [Rappture::icon zoom-out] \
322	-command [itcl::code $this Zoom out]
323	} {
324	usual
325	ignore -highlightthickness
326	}
327	pack $itk_component(zoomout) -side top -padx 2 -pady 2
328	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
329
330	itk_component add surface {
331	Rappture::PushButton $f.surface \
332	-onimage [Rappture::icon volume-on] \
333	-offimage [Rappture::icon volume-off] \
334	-variable [itcl::scope _settings(-surfacevisible)] \
335	-command [itcl::code $this AdjustSetting -surfacevisible]
336	}
337	$itk_component(surface) select
338	Rappture::Tooltip::for $itk_component(surface) \
339	"Show/Hide the boundary surface"
340	pack $itk_component(surface) -padx 2 -pady 2
341
342	itk_component add streamlines {
343	Rappture::PushButton $f.streamlines \
344	-onimage [Rappture::icon streamlines-on] \
345	-offimage [Rappture::icon streamlines-off] \
346	-variable [itcl::scope _settings(-streamlinesvisible)] \
347	-command [itcl::code $this AdjustSetting -streamlinesvisible] \
348	}
349	$itk_component(streamlines) select
350	Rappture::Tooltip::for $itk_component(streamlines) \
351	"Show/Hide the streamlines"
352	pack $itk_component(streamlines) -padx 2 -pady 2
353
354	itk_component add cutplane {
355	Rappture::PushButton $f.cutplane \
356	-onimage [Rappture::icon cutbutton] \
357	-offimage [Rappture::icon cutbutton] \
358	-variable [itcl::scope _settings(-cutplanevisible)] \
359	-command [itcl::code $this AdjustSetting -cutplanevisible]
360	}
361	Rappture::Tooltip::for $itk_component(cutplane) \
362	"Show/Hide the cutplanes"
363	pack $itk_component(cutplane) -padx 2 -pady 2
364
365	if { [catch {
366	BuildSurfaceTab
367	BuildStreamsTab
368	BuildCutplaneTab
369	BuildAxisTab
370	BuildCameraTab
371	} errs] != 0 } {
372	puts stderr errs=$errs
373	}
374	# Legend
375
376	set _image(legend) [image create photo]
377	itk_component add legend {
378	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
379	} {
380	usual
381	ignore -highlightthickness
382	rename -background -plotbackground plotBackground Background
383	}
384
385	# Hack around the Tk panewindow. The problem is that the requested
386	# size of the 3d view isn't set until an image is retrieved from
387	# the server. So the panewindow uses the tiny size.
388	set w 10000
389	pack forget $itk_component(view)
390	blt::table $itk_component(plotarea) \
391	0,0 $itk_component(view) -fill both -reqwidth $w
392	blt::table configure $itk_component(plotarea) c1 -resize none
393
394	# Bindings for rotation via mouse
395	bind $itk_component(view) <ButtonPress-1> \
396	[itcl::code $this Rotate click %x %y]
397	bind $itk_component(view) <B1-Motion> \
398	[itcl::code $this Rotate drag %x %y]
399	bind $itk_component(view) <ButtonRelease-1> \
400	[itcl::code $this Rotate release %x %y]
401
402	# Bindings for panning via mouse
403	bind $itk_component(view) <ButtonPress-2> \
404	[itcl::code $this Pan click %x %y]
405	bind $itk_component(view) <B2-Motion> \
406	[itcl::code $this Pan drag %x %y]
407	bind $itk_component(view) <ButtonRelease-2> \
408	[itcl::code $this Pan release %x %y]
409
410	#bind $itk_component(view) <ButtonRelease-3> \
411	# [itcl::code $this Pick %x %y]
412
413	# Bindings for panning via keyboard
414	bind $itk_component(view) <KeyPress-Left> \
415	[itcl::code $this Pan set -10 0]
416	bind $itk_component(view) <KeyPress-Right> \
417	[itcl::code $this Pan set 10 0]
418	bind $itk_component(view) <KeyPress-Up> \
419	[itcl::code $this Pan set 0 -10]
420	bind $itk_component(view) <KeyPress-Down> \
421	[itcl::code $this Pan set 0 10]
422	bind $itk_component(view) <Shift-KeyPress-Left> \
423	[itcl::code $this Pan set -2 0]
424	bind $itk_component(view) <Shift-KeyPress-Right> \
425	[itcl::code $this Pan set 2 0]
426	bind $itk_component(view) <Shift-KeyPress-Up> \
427	[itcl::code $this Pan set 0 -2]
428	bind $itk_component(view) <Shift-KeyPress-Down> \
429	[itcl::code $this Pan set 0 2]
430
431	# Bindings for zoom via keyboard
432	bind $itk_component(view) <KeyPress-Prior> \
433	[itcl::code $this Zoom out]
434	bind $itk_component(view) <KeyPress-Next> \
435	[itcl::code $this Zoom in]
436
437	bind $itk_component(view) <Enter> "focus $itk_component(view)"
438
439	if {[string equal "x11" [tk windowingsystem]]} {
440	# Bindings for zoom via mouse
441	bind $itk_component(view) <4> [itcl::code $this Zoom out]
442	bind $itk_component(view) <5> [itcl::code $this Zoom in]
443	}
444
445	set _image(download) [image create photo]
446
447	eval itk_initialize $args
448	Connect
449	}
450
451	# ----------------------------------------------------------------------
452	# DESTRUCTOR
453	# ----------------------------------------------------------------------
454	itcl::body Rappture::VtkStreamlinesViewer::destructor {} {
455	Disconnect
456	image delete $_image(plot)
457	image delete $_image(download)
458	catch { blt::arcball destroy $_arcball }
459	}
460
461	itcl::body Rappture::VtkStreamlinesViewer::DoResize {} {
462	if { $_width < 2 } {
463	set _width 500
464	}
465	if { $_height < 2 } {
466	set _height 500
467	}
468	set _start [clock clicks -milliseconds]
469	SendCmd "screen size $_width $_height"
470
471	set _legendPending 1
472	set _resizePending 0
473	}
474
475	itcl::body Rappture::VtkStreamlinesViewer::DoRotate {} {
476	SendCmd "camera orient [ViewToQuaternion]"
477	set _rotatePending 0
478	}
479
480	itcl::body Rappture::VtkStreamlinesViewer::DoReseed {} {
481	foreach dataset [CurrentDatasets -visible] {
482	foreach {dataobj comp} [split $dataset -] break
483	# This command works for either random or fmesh seeds
484	SendCmd "streamlines seed numpts $_numSeeds $dataset"
485	}
486	set _reseedPending 0
487	}
488
489	itcl::body Rappture::VtkStreamlinesViewer::EventuallyResize { w h } {
490	set _width $w
491	set _height $h
492	$_arcball resize $w $h
493	if { !$_resizePending } {
494	set _resizePending 1
495	$_dispatcher event -after 400 !resize
496	}
497	}
498
499	itcl::body Rappture::VtkStreamlinesViewer::EventuallyReseed { numPoints } {
500	set _numSeeds $numPoints
501	if { !$_reseedPending } {
502	set _reseedPending 1
503	$_dispatcher event -after 600 !reseed
504	}
505	}
506
507	set rotate_delay 100
508
509	itcl::body Rappture::VtkStreamlinesViewer::EventuallyRotate { q } {
510	QuaternionToView $q
511	if { !$_rotatePending } {
512	set _rotatePending 1
513	global rotate_delay
514	$_dispatcher event -after $rotate_delay !rotate
515	}
516	}
517
518	itcl::body Rappture::VtkStreamlinesViewer::EventuallySetCutplane { axis args } {
519	if { !$_cutplanePending } {
520	set _cutplanePending 1
521	$_dispatcher event -after 100 !${axis}cutplane
522	}
523	}
524
525	# ----------------------------------------------------------------------
526	# USAGE: add <dataobj> ?<settings>?
527	#
528	# Clients use this to add a data object to the plot. The optional
529	# <settings> are used to configure the plot. Allowed settings are
530	# -color, -brightness, -width, -linestyle, and -raise.
531	# ----------------------------------------------------------------------
532	itcl::body Rappture::VtkStreamlinesViewer::add {dataobj {settings ""}} {
533	array set params {
534	-color auto
535	-width 1
536	-linestyle solid
537	-brightness 0
538	-raise 0
539	-description ""
540	-param ""
541	-type ""
542	}
543	array set params $settings
544	set params(-description) ""
545	set params(-param) ""
546	array set params $settings
547
548	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
549	# can't handle -autocolors yet
550	set params(-color) black
551	}
552	set pos [lsearch -exact $_dlist $dataobj]
553	if {$pos < 0} {
554	lappend _dlist $dataobj
555	}
556	set _obj2ovride($dataobj-color) $params(-color)
557	set _obj2ovride($dataobj-width) $params(-width)
558	set _obj2ovride($dataobj-raise) $params(-raise)
559	$_dispatcher event -idle !rebuild
560	}
561
562
563	# ----------------------------------------------------------------------
564	# USAGE: delete ?<dataobj1> <dataobj2> ...?
565	#
566	# Clients use this to delete a dataobj from the plot. If no dataobjs
567	# are specified, then all dataobjs are deleted. No data objects are
568	# deleted. They are only removed from the display list.
569	#
570	# ----------------------------------------------------------------------
571	itcl::body Rappture::VtkStreamlinesViewer::delete {args} {
572	if { [llength $args] == 0} {
573	set args $_dlist
574	}
575	# Delete all specified dataobjs
576	set changed 0
577	foreach dataobj $args {
578	set pos [lsearch -exact $_dlist $dataobj]
579	if { $pos < 0 } {
580	continue; # Don't know anything about it.
581	}
582	# Remove it from the dataobj list.
583	set _dlist [lreplace $_dlist $pos $pos]
584	array unset _obj2ovride $dataobj-*
585	array unset _settings $dataobj-*
586	set changed 1
587	}
588	# If anything changed, then rebuild the plot
589	if { $changed } {
590	$_dispatcher event -idle !rebuild
591	}
592	}
593
594	# ----------------------------------------------------------------------
595	# USAGE: get ?-objects?
596	# USAGE: get ?-visible?
597	# USAGE: get ?-image view?
598	#
599	# Clients use this to query the list of objects being plotted, in
600	# order from bottom to top of this result. The optional "-image"
601	# flag can also request the internal images being shown.
602	# ----------------------------------------------------------------------
603	itcl::body Rappture::VtkStreamlinesViewer::get {args} {
604	if {[llength $args] == 0} {
605	set args "-objects"
606	}
607
608	set op [lindex $args 0]
609	switch -- $op {
610	"-objects" {
611	# put the dataobj list in order according to -raise options
612	set dlist {}
613	foreach dataobj $_dlist {
614	if { ![IsValidObject $dataobj] } {
615	continue
616	}
617	if {[info exists _obj2ovride($dataobj-raise)] &&
618	$_obj2ovride($dataobj-raise)} {
619	set dlist [linsert $dlist 0 $dataobj]
620	} else {
621	lappend dlist $dataobj
622	}
623	}
624	return $dlist
625	}
626	"-visible" {
627	set dlist {}
628	foreach dataobj $_dlist {
629	if { ![IsValidObject $dataobj] } {
630	continue
631	}
632	if { ![info exists _obj2ovride($dataobj-raise)] } {
633	# No setting indicates that the object isn't visible.
634	continue
635	}
636	# Otherwise use the -raise parameter to put the object to
637	# the front of the list.
638	if { $_obj2ovride($dataobj-raise) } {
639	set dlist [linsert $dlist 0 $dataobj]
640	} else {
641	lappend dlist $dataobj
642	}
643	}
644	return $dlist
645	}
646	-image {
647	if {[llength $args] != 2} {
648	error "wrong # args: should be \"get -image view\""
649	}
650	switch -- [lindex $args end] {
651	view {
652	return $_image(plot)
653	}
654	default {
655	error "bad image name \"[lindex $args end]\": should be view"
656	}
657	}
658	}
659	default {
660	error "bad option \"$op\": should be -objects or -image"
661	}
662	}
663	}
664
665	# ----------------------------------------------------------------------
666	# USAGE: scale ?<data1> <data2> ...?
667	#
668	# Sets the default limits for the overall plot according to the
669	# limits of the data for all of the given <data> objects. This
670	# accounts for all objects--even those not showing on the screen.
671	# Because of this, the limits are appropriate for all objects as
672	# the user scans through data in the ResultSet viewer.
673	# ----------------------------------------------------------------------
674	itcl::body Rappture::VtkStreamlinesViewer::scale {args} {
675	foreach dataobj $args {
676	foreach axis { x y z } {
677	set lim [$dataobj limits $axis]
678	if { ![info exists _limits($axis)] } {
679	set _limits($axis) $lim
680	continue
681	}
682	foreach {min max} $lim break
683	foreach {amin amax} $_limits($axis) break
684	if { $amin > $min } {
685	set amin $min
686	}
687	if { $amax < $max } {
688	set amax $max
689	}
690	set _limits($axis) [list $amin $amax]
691	}
692	foreach { fname lim } [$dataobj fieldlimits] {
693	if { ![info exists _limits($fname)] } {
694	set _limits($fname) $lim
695	continue
696	}
697	foreach {min max} $lim break
698	foreach {fmin fmax} $_limits($fname) break
699	if { $fmin > $min } {
700	set fmin $min
701	}
702	if { $fmax < $max } {
703	set fmax $max
704	}
705	set _limits($fname) [list $fmin $fmax]
706	}
707	}
708	}
709
710	# ----------------------------------------------------------------------
711	# USAGE: download coming
712	# USAGE: download controls <downloadCommand>
713	# USAGE: download now
714	#
715	# Clients use this method to create a downloadable representation
716	# of the plot. Returns a list of the form {ext string}, where
717	# "ext" is the file extension (indicating the type of data) and
718	# "string" is the data itself.
719	# ----------------------------------------------------------------------
720	itcl::body Rappture::VtkStreamlinesViewer::download {option args} {
721	switch $option {
722	coming {
723	if {[catch {
724	blt::winop snap $itk_component(plotarea) $_image(download)
725	}]} {
726	$_image(download) configure -width 1 -height 1
727	$_image(download) put #000000
728	}
729	}
730	controls {
731	set popup .vtkviewerdownload
732	if { ![winfo exists .vtkviewerdownload] } {
733	set inner [BuildDownloadPopup $popup [lindex $args 0]]
734	} else {
735	set inner [$popup component inner]
736	}
737	set _downloadPopup(image_controls) $inner.image_frame
738	set num [llength [get]]
739	set num [expr {($num == 1) ? "1 result" : "$num results"}]
740	set word [Rappture::filexfer::label downloadWord]
741	$inner.summary configure -text "$word $num in the following format:"
742	update idletasks ;# Fix initial sizes
743	return $popup
744	}
745	now {
746	set popup .vtkviewerdownload
747	if {[winfo exists .vtkviewerdownload]} {
748	$popup deactivate
749	}
750	switch -- $_downloadPopup(format) {
751	"image" {
752	return [$this GetImage [lindex $args 0]]
753	}
754	"vtk" {
755	return [$this GetVtkData [lindex $args 0]]
756	}
757	}
758	return ""
759	}
760	default {
761	error "bad option \"$option\": should be coming, controls, now"
762	}
763	}
764	}
765
766	# ----------------------------------------------------------------------
767	# USAGE: Connect ?<host:port>,<host:port>...?
768	#
769	# Clients use this method to establish a connection to a new
770	# server, or to reestablish a connection to the previous server.
771	# Any existing connection is automatically closed.
772	# ----------------------------------------------------------------------
773	itcl::body Rappture::VtkStreamlinesViewer::Connect {} {
774	set _hosts [GetServerList "vtkvis"]
775	if { "" == $_hosts } {
776	return 0
777	}
778	set _reset 1
779	set result [VisViewer::Connect $_hosts]
780	if { $result } {
781	if { $_reportClientInfo } {
782	# Tell the server the viewer, hub, user and session.
783	# Do this immediately on connect before buffering any commands
784	global env
785
786	set info {}
787	set user "???"
788	if { [info exists env(USER)] } {
789	set user $env(USER)
790	}
791	set session "???"
792	if { [info exists env(SESSION)] } {
793	set session $env(SESSION)
794	}
795	lappend info "version" "$Rappture::version"
796	lappend info "build" "$Rappture::build"
797	lappend info "svnurl" "$Rappture::svnurl"
798	lappend info "installdir" "$Rappture::installdir"
799	lappend info "hub" [exec hostname]
800	lappend info "client" "vtkstreamlinesviewer"
801	lappend info "user" $user
802	lappend info "session" $session
803	SendCmd "clientinfo [list $info]"
804	}
805
806	set w [winfo width $itk_component(view)]
807	set h [winfo height $itk_component(view)]
808	EventuallyResize $w $h
809	}
810	return $result
811	}
812
813	#
814	# isconnected --
815	#
816	# Indicates if we are currently connected to the visualization server.
817	#
818	itcl::body Rappture::VtkStreamlinesViewer::isconnected {} {
819	return [VisViewer::IsConnected]
820	}
821
822	#
823	# disconnect --
824	#
825	itcl::body Rappture::VtkStreamlinesViewer::disconnect {} {
826	Disconnect
827	set _reset 1
828	}
829
830	#
831	# Disconnect --
832	#
833	# Clients use this method to disconnect from the current rendering
834	# server.
835	#
836	itcl::body Rappture::VtkStreamlinesViewer::Disconnect {} {
837	VisViewer::Disconnect
838
839	$_dispatcher cancel !rebuild
840	$_dispatcher cancel !resize
841	$_dispatcher cancel !reseed
842	$_dispatcher cancel !rotate
843	$_dispatcher cancel !xcutplane
844	$_dispatcher cancel !ycutplane
845	$_dispatcher cancel !zcutplane
846	$_dispatcher cancel !legend
847	# disconnected -- no more data sitting on server
848	array unset _datasets
849	array unset _colormaps
850	array unset _seeds
851	array unset _dataset2style
852	}
853
854	# ----------------------------------------------------------------------
855	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
856	#
857	# Invoked automatically whenever the "image" command comes in from
858	# the rendering server. Indicates that binary image data with the
859	# specified <size> will follow.
860	# ----------------------------------------------------------------------
861	itcl::body Rappture::VtkStreamlinesViewer::ReceiveImage { args } {
862	array set info {
863	-token "???"
864	-bytes 0
865	-type image
866	}
867	array set info $args
868	set bytes [ReceiveBytes $info(-bytes)]
869	if { $info(-type) == "image" } {
870	if 0 {
871	set f [open "last.ppm" "w"]
872	fconfigure $f -encoding binary
873	puts -nonewline $f $bytes
874	close $f
875	}
876	$_image(plot) configure -data $bytes
877	set time [clock seconds]
878	set date [clock format $time]
879	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
880	if { $_start > 0 } {
881	set finish [clock clicks -milliseconds]
882	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
883	set _start 0
884	}
885	} elseif { $info(type) == "print" } {
886	set tag $this-print-$info(-token)
887	set _hardcopy($tag) $bytes
888	}
889	if { $_legendPending } {
890	RequestLegend
891	}
892	}
893
894	#
895	# ReceiveDataset --
896	#
897	itcl::body Rappture::VtkStreamlinesViewer::ReceiveDataset { args } {
898	if { ![isconnected] } {
899	return
900	}
901	set option [lindex $args 0]
902	switch -- $option {
903	"scalar" {
904	set option [lindex $args 1]
905	switch -- $option {
906	"world" {
907	foreach { x y z value tag } [lrange $args 2 end] break
908	}
909	"pixel" {
910	foreach { x y value tag } [lrange $args 2 end] break
911	}
912	}
913	}
914	"vector" {
915	set option [lindex $args 1]
916	switch -- $option {
917	"world" {
918	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
919	}
920	"pixel" {
921	foreach { x y vx vy vz tag } [lrange $args 2 end] break
922	}
923	}
924	}
925	"names" {
926	foreach { name } [lindex $args 1] {
927	#puts stderr "Dataset: $name"
928	}
929	}
930	default {
931	error "unknown dataset option \"$option\" from server"
932	}
933	}
934	}
935
936	# ----------------------------------------------------------------------
937	# USAGE: Rebuild
938	#
939	# Called automatically whenever something changes that affects the
940	# data in the widget. Clears any existing data and rebuilds the
941	# widget to display new data.
942	# ----------------------------------------------------------------------
943	itcl::body Rappture::VtkStreamlinesViewer::Rebuild {} {
944	set w [winfo width $itk_component(view)]
945	set h [winfo height $itk_component(view)]
946	if { $w < 2 \|\| $h < 2 } {
947	update
948	$_dispatcher event -idle !rebuild
949	return
950	}
951
952	# Turn on buffering of commands to the server. We don't want to
953	# be preempted by a server disconnect/reconnect (which automatically
954	# generates a new call to Rebuild).
955	StartBufferingCommands
956	set _legendPending 1
957
958	set _first ""
959	if { $_reset } {
960	set _width $w
961	set _height $h
962	$_arcball resize $w $h
963	DoResize
964	InitSettings -xgrid -ygrid -zgrid -axismode \
965	-axesvisible -axislabelsvisible -axisminorticks
966	# This "imgflush" is to force an image returned before vtkvis starts
967	# reading a (big) dataset. This will display an empty plot with axes
968	# at the correct image size.
969	SendCmd "imgflush"
970	}
971
972	set _first ""
973	SendCmd "dataset visible 0"
974	foreach dataobj [get -objects] {
975	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
976	set _first $dataobj
977	}
978	foreach comp [$dataobj components] {
979	set tag $dataobj-$comp
980	if { ![info exists _datasets($tag)] } {
981	set bytes [$dataobj vtkdata $comp]
982	set length [string length $bytes]
983	if 0 {
984	set f [open /tmp/vtkstreamlines.vtk "w"]
985	fconfigure $f -translation binary -encoding binary
986	puts -nonewline $f $bytes
987	close $f
988	}
989	if { $_reportClientInfo } {
990	set info {}
991	lappend info "tool_id" [$dataobj hints toolid]
992	lappend info "tool_name" [$dataobj hints toolname]
993	lappend info "tool_title" [$dataobj hints tooltitle]
994	lappend info "tool_command" [$dataobj hints toolcommand]
995	lappend info "tool_revision" [$dataobj hints toolrevision]
996	lappend info "dataset_label" [$dataobj hints label]
997	lappend info "dataset_size" $length
998	lappend info "dataset_tag" $tag
999	SendCmd "clientinfo [list $info]"
1000	}
1001	SendCmd "dataset add $tag data follows $length"
1002	SendData $bytes
1003	set _datasets($tag) 1
1004	SetObjectStyle $dataobj $comp
1005	}
1006	if { [info exists _obj2ovride($dataobj-raise)] } {
1007	SendCmd "dataset visible 1 $tag"
1008	}
1009	}
1010	}
1011	if {"" != $_first} {
1012	set location [$_first hints camera]
1013	if { $location != "" } {
1014	array set view $location
1015	}
1016	foreach axis { x y z } {
1017	set label [$_first hints ${axis}label]
1018	if { $label != "" } {
1019	SendCmd [list axis name $axis $label]
1020	}
1021	set units [$_first hints ${axis}units]
1022	if { $units != "" } {
1023	SendCmd [list axis units $axis $units]
1024	}
1025	}
1026	$itk_component(field) choices delete 0 end
1027	$itk_component(fieldmenu) delete 0 end
1028	array unset _fields
1029	set _curFldName ""
1030	set _curFldLabel ""
1031	foreach cname [$_first components] {
1032	foreach fname [$_first fieldnames $cname] {
1033	if { [info exists _fields($fname)] } {
1034	continue
1035	}
1036	foreach { label units components } \
1037	[$_first fieldinfo $fname] break
1038	$itk_component(field) choices insert end "$fname" "$label"
1039	$itk_component(fieldmenu) add radiobutton -label "$label" \
1040	-value $label -variable [itcl::scope _curFldLabel] \
1041	-selectcolor red \
1042	-activebackground $itk_option(-plotbackground) \
1043	-activeforeground $itk_option(-plotforeground) \
1044	-font "Arial 8" \
1045	-command [itcl::code $this Combo invoke]
1046	set _fields($fname) [list $label $units $components]
1047	if { $_curFldName == "" && $components == 3 } {
1048	set _curFldName $fname
1049	set _curFldLabel $label
1050	}
1051	}
1052	}
1053	$itk_component(field) value $_curFldLabel
1054	}
1055
1056	if { $_reset } {
1057	InitSettings -streamlinesseedsvisible -streamlinesopacity \
1058	-streamlinesvisible \
1059	-streamlineslighting \
1060	-streamlinescolormap -field \
1061	-surfacevisible -surfaceedges -surfacelighting -surfaceopacity \
1062	-surfacewireframe \
1063	-cutplanevisible \
1064	-cutplanexposition -cutplaneyposition -cutplanezposition \
1065	-cutplanexvisible -cutplaneyvisible -cutplanezvisible
1066
1067	# Reset the camera and other view parameters
1068	$_arcball quaternion [ViewToQuaternion]
1069	if {$_view(-ortho)} {
1070	SendCmd "camera mode ortho"
1071	} else {
1072	SendCmd "camera mode persp"
1073	}
1074	DoRotate
1075	PanCamera
1076	Zoom reset
1077	SendCmd "camera reset"
1078	set _reset 0
1079	}
1080	# Actually write the commands to the server socket. If it fails, we don't
1081	# care. We're finished here.
1082	blt::busy hold $itk_component(hull)
1083	StopBufferingCommands
1084	blt::busy release $itk_component(hull)
1085	}
1086
1087	# ----------------------------------------------------------------------
1088	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1089	#
1090	# Returns a list of server IDs for the current datasets being displayed. This
1091	# is normally a single ID, but it might be a list of IDs if the current data
1092	# object has multiple components.
1093	# ----------------------------------------------------------------------
1094	itcl::body Rappture::VtkStreamlinesViewer::CurrentDatasets {args} {
1095	set flag [lindex $args 0]
1096	switch -- $flag {
1097	"-all" {
1098	if { [llength $args] > 1 } {
1099	error "CurrentDatasets: can't specify dataobj after \"-all\""
1100	}
1101	set dlist [get -objects]
1102	}
1103	"-visible" {
1104	if { [llength $args] > 1 } {
1105	set dlist {}
1106	set args [lrange $args 1 end]
1107	foreach dataobj $args {
1108	if { [info exists _obj2ovride($dataobj-raise)] } {
1109	lappend dlist $dataobj
1110	}
1111	}
1112	} else {
1113	set dlist [get -visible]
1114	}
1115	}
1116	default {
1117	set dlist $args
1118	}
1119	}
1120	set rlist ""
1121	foreach dataobj $dlist {
1122	foreach comp [$dataobj components] {
1123	set tag $dataobj-$comp
1124	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1125	lappend rlist $tag
1126	}
1127	}
1128	}
1129	return $rlist
1130	}
1131
1132	# ----------------------------------------------------------------------
1133	# USAGE: Zoom in
1134	# USAGE: Zoom out
1135	# USAGE: Zoom reset
1136	#
1137	# Called automatically when the user clicks on one of the zoom
1138	# controls for this widget. Changes the zoom for the current view.
1139	# ----------------------------------------------------------------------
1140	itcl::body Rappture::VtkStreamlinesViewer::Zoom {option} {
1141	switch -- $option {
1142	"in" {
1143	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1144	SendCmd "camera zoom $_view(-zoom)"
1145	}
1146	"out" {
1147	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1148	SendCmd "camera zoom $_view(-zoom)"
1149	}
1150	"reset" {
1151	array set _view {
1152	-qw 0.853553
1153	-qx -0.353553
1154	-qy 0.353553
1155	-qz 0.146447
1156	-xpan 0
1157	-ypan 0
1158	-zoom 1.0
1159	}
1160	if { $_first != "" } {
1161	set location [$_first hints camera]
1162	if { $location != "" } {
1163	array set _view $location
1164	}
1165	}
1166	$_arcball quaternion [ViewToQuaternion]
1167	DoRotate
1168	SendCmd "camera reset"
1169	}
1170	}
1171	}
1172
1173	itcl::body Rappture::VtkStreamlinesViewer::PanCamera {} {
1174	set x $_view(-xpan)
1175	set y $_view(-ypan)
1176	SendCmd "camera pan $x $y"
1177	}
1178
1179	# ----------------------------------------------------------------------
1180	# USAGE: Rotate click <x> <y>
1181	# USAGE: Rotate drag <x> <y>
1182	# USAGE: Rotate release <x> <y>
1183	#
1184	# Called automatically when the user clicks/drags/releases in the
1185	# plot area. Moves the plot according to the user's actions.
1186	# ----------------------------------------------------------------------
1187	itcl::body Rappture::VtkStreamlinesViewer::Rotate {option x y} {
1188	switch -- $option {
1189	"click" {
1190	$itk_component(view) configure -cursor fleur
1191	set _click(x) $x
1192	set _click(y) $y
1193	}
1194	"drag" {
1195	if {[array size _click] == 0} {
1196	Rotate click $x $y
1197	} else {
1198	set w [winfo width $itk_component(view)]
1199	set h [winfo height $itk_component(view)]
1200	if {$w <= 0 \|\| $h <= 0} {
1201	return
1202	}
1203
1204	if {[catch {
1205	# this fails sometimes for no apparent reason
1206	set dx [expr {double($x-$_click(x))/$w}]
1207	set dy [expr {double($y-$_click(y))/$h}]
1208	}]} {
1209	return
1210	}
1211	if { $dx == 0 && $dy == 0 } {
1212	return
1213	}
1214	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1215	EventuallyRotate $q
1216	set _click(x) $x
1217	set _click(y) $y
1218	}
1219	}
1220	"release" {
1221	Rotate drag $x $y
1222	$itk_component(view) configure -cursor ""
1223	catch {unset _click}
1224	}
1225	default {
1226	error "bad option \"$option\": should be click, drag, release"
1227	}
1228	}
1229	}
1230
1231	itcl::body Rappture::VtkStreamlinesViewer::Pick {x y} {
1232	foreach tag [CurrentDatasets -visible] {
1233	SendCmd "dataset getscalar pixel $x $y $tag"
1234	}
1235	}
1236
1237	# ----------------------------------------------------------------------
1238	# USAGE: $this Pan click x y
1239	# $this Pan drag x y
1240	# $this Pan release x y
1241	#
1242	# Called automatically when the user clicks on one of the zoom
1243	# controls for this widget. Changes the zoom for the current view.
1244	# ----------------------------------------------------------------------
1245	itcl::body Rappture::VtkStreamlinesViewer::Pan {option x y} {
1246	switch -- $option {
1247	"set" {
1248	set w [winfo width $itk_component(view)]
1249	set h [winfo height $itk_component(view)]
1250	set x [expr $x / double($w)]
1251	set y [expr $y / double($h)]
1252	set _view(-xpan) [expr $_view(-xpan) + $x]
1253	set _view(-ypan) [expr $_view(-ypan) + $y]
1254	PanCamera
1255	return
1256	}
1257	"click" {
1258	set _click(x) $x
1259	set _click(y) $y
1260	$itk_component(view) configure -cursor hand1
1261	}
1262	"drag" {
1263	if { ![info exists _click(x)] } {
1264	set _click(x) $x
1265	}
1266	if { ![info exists _click(y)] } {
1267	set _click(y) $y
1268	}
1269	set w [winfo width $itk_component(view)]
1270	set h [winfo height $itk_component(view)]
1271	set dx [expr ($_click(x) - $x)/double($w)]
1272	set dy [expr ($_click(y) - $y)/double($h)]
1273	set _click(x) $x
1274	set _click(y) $y
1275	set _view(-xpan) [expr $_view(-xpan) - $dx]
1276	set _view(-ypan) [expr $_view(-ypan) - $dy]
1277	PanCamera
1278	}
1279	"release" {
1280	Pan drag $x $y
1281	$itk_component(view) configure -cursor ""
1282	}
1283	default {
1284	error "unknown option \"$option\": should set, click, drag, or release"
1285	}
1286	}
1287	}
1288
1289	# ----------------------------------------------------------------------
1290	# USAGE: InitSettings <what> ?<value>?
1291	#
1292	# Used internally to update rendering settings whenever parameters
1293	# change in the popup settings panel. Sends the new settings off
1294	# to the back end.
1295	# ----------------------------------------------------------------------
1296	itcl::body Rappture::VtkStreamlinesViewer::InitSettings { args } {
1297	foreach spec $args {
1298	if { [info exists _settings($_first${spec})] } {
1299	# Reset global setting with dataobj specific setting
1300	set _settings($spec) $_settings($_first${spec})
1301	}
1302	AdjustSetting $spec
1303	}
1304	}
1305
1306	#
1307	# AdjustSetting --
1308	#
1309	# Changes/updates a specific setting in the widget. There are
1310	# usually user-setable option. Commands are sent to the render
1311	# server.
1312	#
1313	itcl::body Rappture::VtkStreamlinesViewer::AdjustSetting {what {value ""}} {
1314	if { ![isconnected] } {
1315	return
1316	}
1317	switch -- $what {
1318	"-axesvisible" {
1319	set bool $_settings($what)
1320	SendCmd "axis visible all $bool"
1321	}
1322	"-axislabelsvisible" {
1323	set bool $_settings($what)
1324	SendCmd "axis labels all $bool"
1325	}
1326	"-axisminorticks" {
1327	set bool $_settings($what)
1328	SendCmd "axis minticks all $bool"
1329	}
1330	"-axismode" {
1331	set mode [$itk_component(axismode) value]
1332	set mode [$itk_component(axismode) translate $mode]
1333	set _settings($what) $mode
1334	SendCmd "axis flymode $mode"
1335	}
1336	"-cutplaneedges" {
1337	set bool $_settings($what)
1338	SendCmd "cutplane edges $bool"
1339	}
1340	"-cutplanevisible" {
1341	set bool $_settings($what)
1342	SendCmd "cutplane visible $bool"
1343	if { $bool } {
1344	Rappture::Tooltip::for $itk_component(cutplane) \
1345	"Hide the cutplanes"
1346	} else {
1347	Rappture::Tooltip::for $itk_component(cutplane) \
1348	"Show the cutplanes"
1349	}
1350	}
1351	"-cutplanewireframe" {
1352	set bool $_settings($what)
1353	SendCmd "cutplane wireframe $bool"
1354	}
1355	"-cutplanelighting" {
1356	set bool $_settings($what)
1357	SendCmd "cutplane lighting $bool"
1358	}
1359	"-cutplaneopacity" {
1360	set val $_settings($what)
1361	set sval [expr { 0.01 * double($val) }]
1362	SendCmd "cutplane opacity $sval"
1363	}
1364	"-cutplanexvisible" - "-cutplaneyvisible" - "-cutplanezvisible" {
1365	set axis [string range $what 9 9]
1366	set bool $_settings($what)
1367	if { $bool } {
1368	$itk_component(${axis}CutScale) configure -state normal \
1369	-troughcolor white
1370	} else {
1371	$itk_component(${axis}CutScale) configure -state disabled \
1372	-troughcolor grey82
1373	}
1374	SendCmd "cutplane axis $axis $bool"
1375	}
1376	"-cutplanexposition" - "-cutplaneyposition" - "-cutplanezposition" {
1377	set axis [string range $what 9 9]
1378	set pos [expr $_settings($what) * 0.01]
1379	SendCmd "cutplane slice ${axis} ${pos}"
1380	set _cutplanePending 0
1381	}
1382	"-field" {
1383	set label [$itk_component(field) value]
1384	set fname [$itk_component(field) translate $label]
1385	set _settings($what) $fname
1386	if { [info exists _fields($fname)] } {
1387	foreach { label units components } $_fields($fname) break
1388	if { $components > 1 } {
1389	set _colorMode vmag
1390	} else {
1391	set _colorMode scalar
1392	}
1393	set _curFldName $fname
1394	set _curFldLabel $label
1395	} else {
1396	puts stderr "unknown field \"$fname\""
1397	return
1398	}
1399	# Get the new limits because the field changed.
1400	if { ![info exists _limits($_curFldName)] } {
1401	SendCmd "dataset maprange all"
1402	} else {
1403	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1404	}
1405	SendCmd "streamlines colormode $_colorMode $_curFldName"
1406	SendCmd "cutplane colormode $_colorMode $_curFldName"
1407	DrawLegend
1408	}
1409	"-streamlinesseedsvisible" {
1410	set bool $_settings($what)
1411	SendCmd "streamlines seed visible $bool"
1412	}
1413	"-streamlinesnumseeds" {
1414	set density $_settings($what)
1415	EventuallyReseed $density
1416	}
1417	"-streamlinesvisible" {
1418	set bool $_settings($what)
1419	SendCmd "streamlines visible $bool"
1420	if { $bool } {
1421	Rappture::Tooltip::for $itk_component(streamlines) \
1422	"Hide the streamlines"
1423	} else {
1424	Rappture::Tooltip::for $itk_component(streamlines) \
1425	"Show the streamlines"
1426	}
1427	}
1428	"-streamlinesmode" {
1429	set mode [$itk_component(streammode) value]
1430	set _settings($what) $mode
1431	switch -- $mode {
1432	"lines" {
1433	SendCmd "streamlines lines"
1434	}
1435	"ribbons" {
1436	SendCmd "streamlines ribbons 3 0"
1437	}
1438	"tubes" {
1439	SendCmd "streamlines tubes 5 3"
1440	}
1441	}
1442	}
1443	"-streamlinescolormap" {
1444	set colormap [$itk_component(colormap) value]
1445	set _settings($what) $colormap
1446	foreach dataset [CurrentDatasets -visible $_first] {
1447	foreach {dataobj comp} [split $dataset -] break
1448	ChangeColormap $dataobj $comp $colormap
1449	}
1450	set _legendPending 1
1451	}
1452	"-streamlinesopacity" {
1453	set val $_settings($what)
1454	set sval [expr { 0.01 * double($val) }]
1455	SendCmd "streamlines opacity $sval"
1456	}
1457	"-streamlineslength" {
1458	set val $_settings($what)
1459	set sval [expr { (0.01 * double($val)) / 0.7 }]
1460	foreach axis {x y z} {
1461	foreach {min max} $_limits($axis) break
1462	set ${axis}len [expr double($max) - double($min)]
1463	}
1464	set length [expr { $sval * ($xlen + $ylen + $zlen) } ]
1465	SendCmd "streamlines length $length"
1466	}
1467	"-streamlineslighting" {
1468	set bool $_settings($what)
1469	SendCmd "streamlines lighting $bool"
1470	}
1471	"-surfaceopacity" {
1472	set val $_settings($what)
1473	set sval [expr { 0.01 * double($val) }]
1474	SendCmd "polydata opacity $sval"
1475	}
1476	"-surfacewireframe" {
1477	set bool $_settings($what)
1478	SendCmd "polydata wireframe $bool"
1479	}
1480	"-surfacevisible" {
1481	set bool $_settings($what)
1482	SendCmd "polydata visible $bool"
1483	if { $bool } {
1484	Rappture::Tooltip::for $itk_component(surface) \
1485	"Hide the boundary surface"
1486	} else {
1487	Rappture::Tooltip::for $itk_component(surface) \
1488	"Show the boundary surface"
1489	}
1490	}
1491	"-surfacelighting" {
1492	set bool $_settings($what)
1493	SendCmd "polydata lighting $bool"
1494	}
1495	"-surfaceedges" {
1496	set bool $_settings($what)
1497	SendCmd "polydata edges $bool"
1498	}
1499	"-xgrid" - "-ygrid" - "-zgrid" {
1500	set axis [string range $what 1 1]
1501	set bool $_settings($what)
1502	SendCmd "axis grid $axis $bool"
1503	}
1504	default {
1505	error "don't know how to fix $what"
1506	}
1507	}
1508	}
1509
1510	#
1511	# RequestLegend --
1512	#
1513	# Request a new legend from the server. The size of the legend
1514	# is determined from the height of the canvas. It will be rotated
1515	# to be vertical when drawn.
1516	#
1517	itcl::body Rappture::VtkStreamlinesViewer::RequestLegend {} {
1518	set font "Arial 8"
1519	set lineht [font metrics $font -linespace]
1520	set w 12
1521	set h [expr {$_height - 3 * ($lineht + 2)}]
1522	if { $h < 1 } {
1523	return
1524	}
1525	# Set the legend on the first streamlines dataset.
1526	foreach dataset [CurrentDatasets -visible $_first] {
1527	foreach {dataobj comp} [split $dataset -] break
1528	if { [info exists _dataset2style($dataset)] } {
1529	SendCmd \
1530	"legend $_dataset2style($dataset) $_colorMode $_curFldName {} $w $h 0"
1531	break;
1532	}
1533	}
1534	}
1535
1536	#
1537	# ChangeColormap --
1538	#
1539	itcl::body Rappture::VtkStreamlinesViewer::ChangeColormap {dataobj comp color} {
1540	set tag $dataobj-$comp
1541	if { ![info exist _style($tag)] } {
1542	error "no initial colormap"
1543	}
1544	array set style $_style($tag)
1545	set style(-color) $color
1546	set _style($tag) [array get style]
1547	SetColormap $dataobj $comp
1548	}
1549
1550	#
1551	# SetColormap --
1552	#
1553	itcl::body Rappture::VtkStreamlinesViewer::SetColormap { dataobj comp } {
1554	array set style {
1555	-color BCGYR
1556	}
1557	set tag $dataobj-$comp
1558	if { ![info exists _initialStyle($tag)] } {
1559	# Save the initial component style.
1560	set _initialStyle($tag) [$dataobj style $comp]
1561	}
1562
1563	# Override defaults with initial style defined in xml.
1564	array set style $_initialStyle($tag)
1565
1566	if { ![info exists _style($tag)] } {
1567	set _style($tag) [array get style]
1568	}
1569	# Override initial style with current style.
1570	array set style $_style($tag)
1571
1572	set name "$style(-color)"
1573	if { ![info exists _colormaps($name)] } {
1574	BuildColormap $name [array get style]
1575	set _colormaps($name) 1
1576	}
1577	if { ![info exists _dataset2style($tag)] \|\|
1578	$_dataset2style($tag) != $name } {
1579	SendCmd "streamlines colormap $name $tag"
1580	SendCmd "cutplane colormap $name $tag"
1581	set _dataset2style($tag) $name
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	set amap "0.0 1.0 1.0 1.0"
1595	SendCmd "colormap add $name { $cmap } { $amap }"
1596	}
1597
1598	# ----------------------------------------------------------------------
1599	# CONFIGURATION OPTION: -plotbackground
1600	# ----------------------------------------------------------------------
1601	itcl::configbody Rappture::VtkStreamlinesViewer::plotbackground {
1602	if { [isconnected] } {
1603	set rgb [Color2RGB $itk_option(-plotbackground)]
1604	SendCmd "screen bgcolor $rgb"
1605	}
1606	}
1607
1608	# ----------------------------------------------------------------------
1609	# CONFIGURATION OPTION: -plotforeground
1610	# ----------------------------------------------------------------------
1611	itcl::configbody Rappture::VtkStreamlinesViewer::plotforeground {
1612	if { [isconnected] } {
1613	set rgb [Color2RGB $itk_option(-plotforeground)]
1614	SendCmd "axis color all $rgb"
1615	SendCmd "outline color $rgb"
1616	SendCmd "cutplane color $rgb"
1617	}
1618	}
1619
1620	itcl::body Rappture::VtkStreamlinesViewer::BuildSurfaceTab {} {
1621
1622	set fg [option get $itk_component(hull) font Font]
1623	#set bfg [option get $itk_component(hull) boldFont Font]
1624
1625	set inner [$itk_component(main) insert end \
1626	-title "Boundary Surface Settings" \
1627	-icon [Rappture::icon volume-on]]
1628	$inner configure -borderwidth 4
1629
1630	checkbutton $inner.surface \
1631	-text "Show Surface" \
1632	-variable [itcl::scope _settings(-surfacevisible)] \
1633	-command [itcl::code $this AdjustSetting -surfacevisible] \
1634	-font "Arial 9"
1635
1636	checkbutton $inner.wireframe \
1637	-text "Show Wireframe" \
1638	-variable [itcl::scope _settings(-surfacewireframe)] \
1639	-command [itcl::code $this AdjustSetting -surfacewireframe] \
1640	-font "Arial 9"
1641
1642	checkbutton $inner.lighting \
1643	-text "Enable Lighting" \
1644	-variable [itcl::scope _settings(-surfacelighting)] \
1645	-command [itcl::code $this AdjustSetting -surfacelighting] \
1646	-font "Arial 9"
1647
1648	checkbutton $inner.edges \
1649	-text "Show Edges" \
1650	-variable [itcl::scope _settings(-surfaceedges)] \
1651	-command [itcl::code $this AdjustSetting -surfaceedges] \
1652	-font "Arial 9"
1653
1654	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1655	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1656	-variable [itcl::scope _settings(-surfaceopacity)] \
1657	-width 10 \
1658	-showvalue off \
1659	-command [itcl::code $this AdjustSetting -surfaceopacity]
1660
1661	blt::table $inner \
1662	0,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1663	1,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1664	2,0 $inner.edges -anchor w -pady 2 -cspan 3 \
1665	3,0 $inner.opacity_l -anchor w -pady 2 \
1666	3,1 $inner.opacity -fill x -pady 2
1667
1668	blt::table configure $inner r* c* -resize none
1669	blt::table configure $inner r4 c1 -resize expand
1670	}
1671
1672	itcl::body Rappture::VtkStreamlinesViewer::BuildStreamsTab {} {
1673
1674	set fg [option get $itk_component(hull) font Font]
1675	#set bfg [option get $itk_component(hull) boldFont Font]
1676
1677	set inner [$itk_component(main) insert end \
1678	-title "Streams Settings" \
1679	-icon [Rappture::icon streamlines-on]]
1680	$inner configure -borderwidth 4
1681
1682	checkbutton $inner.streamlines \
1683	-text "Show Streamlines" \
1684	-variable [itcl::scope _settings(-streamlinesvisible)] \
1685	-command [itcl::code $this AdjustSetting -streamlinesvisible] \
1686	-font "Arial 9"
1687
1688	checkbutton $inner.lighting \
1689	-text "Enable Lighting" \
1690	-variable [itcl::scope _settings(-streamlineslighting)] \
1691	-command [itcl::code $this AdjustSetting -streamlineslighting] \
1692	-font "Arial 9"
1693
1694	checkbutton $inner.seeds \
1695	-text "Show Seeds" \
1696	-variable [itcl::scope _settings(-streamlinesseedsvisible)] \
1697	-command [itcl::code $this AdjustSetting -streamlinesseedsvisible] \
1698	-font "Arial 9"
1699
1700	label $inner.mode_l -text "Mode" -font "Arial 9"
1701	itk_component add streammode {
1702	Rappture::Combobox $inner.mode -width 10 -editable no
1703	}
1704	$inner.mode choices insert end \
1705	"lines" "lines" \
1706	"ribbons" "ribbons" \
1707	"tubes" "tubes"
1708	$itk_component(streammode) value $_settings(-streamlinesmode)
1709	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -streamlinesmode]
1710
1711	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1712	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1713	-variable [itcl::scope _settings(-streamlinesopacity)] \
1714	-width 10 \
1715	-showvalue off \
1716	-command [itcl::code $this AdjustSetting -streamlinesopacity]
1717
1718	label $inner.density_l -text "No. Seeds" -font "Arial 9"
1719	::scale $inner.density -from 1 -to 1000 -orient horizontal \
1720	-variable [itcl::scope _settings(-streamlinesnumseeds)] \
1721	-width 10 \
1722	-showvalue on \
1723	-command [itcl::code $this AdjustSetting -streamlinesnumseeds]
1724
1725	label $inner.scale_l -text "Length" -font "Arial 9"
1726	::scale $inner.scale -from 1 -to 100 -orient horizontal \
1727	-variable [itcl::scope _settings(-streamlineslength)] \
1728	-width 10 \
1729	-showvalue off \
1730	-command [itcl::code $this AdjustSetting -streamlineslength]
1731
1732	label $inner.field_l -text "Color by" -font "Arial 9"
1733	itk_component add field {
1734	Rappture::Combobox $inner.field -width 10 -editable no
1735	}
1736	bind $inner.field <<Value>> \
1737	[itcl::code $this AdjustSetting -field]
1738
1739	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1740	itk_component add colormap {
1741	Rappture::Combobox $inner.colormap -width 10 -editable no
1742	}
1743	$inner.colormap choices insert end [GetColormapList]
1744
1745	$itk_component(colormap) value "BCGYR"
1746	bind $inner.colormap <<Value>> \
1747	[itcl::code $this AdjustSetting -streamlinescolormap]
1748
1749	blt::table $inner \
1750	0,0 $inner.field_l -anchor w -pady 2 \
1751	0,1 $inner.field -fill x -pady 2 \
1752	1,0 $inner.colormap_l -anchor w -pady 2 \
1753	1,1 $inner.colormap -fill x -pady 2 \
1754	2,0 $inner.mode_l -anchor w -pady 2 \
1755	2,1 $inner.mode -fill x -pady 2 \
1756	3,0 $inner.scale_l -anchor w -pady 2 \
1757	3,1 $inner.scale -fill x -pady 2 \
1758	4,0 $inner.opacity_l -anchor w -pady 2 \
1759	4,1 $inner.opacity -fill x -pady 2 \
1760	5,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1761	6,0 $inner.seeds -anchor w -pady 2 -cspan 2 \
1762	7,0 $inner.density_l -anchor w -pady 2 \
1763	7,1 $inner.density -fill x -pady 2 \
1764
1765	blt::table configure $inner r* c* -resize none
1766	blt::table configure $inner r10 c1 c2 -resize expand
1767	}
1768
1769	itcl::body Rappture::VtkStreamlinesViewer::BuildAxisTab {} {
1770
1771	set fg [option get $itk_component(hull) font Font]
1772	#set bfg [option get $itk_component(hull) boldFont Font]
1773
1774	set inner [$itk_component(main) insert end \
1775	-title "Axis Settings" \
1776	-icon [Rappture::icon axis2]]
1777	$inner configure -borderwidth 4
1778
1779	checkbutton $inner.visible \
1780	-text "Axes" \
1781	-variable [itcl::scope _settings(-axesvisible)] \
1782	-command [itcl::code $this AdjustSetting -axesvisible] \
1783	-font "Arial 9"
1784
1785	checkbutton $inner.labels \
1786	-text "Axis Labels" \
1787	-variable [itcl::scope _settings(-axislabelsvisible)] \
1788	-command [itcl::code $this AdjustSetting -axislabelsvisible] \
1789	-font "Arial 9"
1790	label $inner.grid_l -text "Grid" -font "Arial 9"
1791	checkbutton $inner.xgrid \
1792	-text "X" \
1793	-variable [itcl::scope _settings(-xgrid)] \
1794	-command [itcl::code $this AdjustSetting -xgrid] \
1795	-font "Arial 9"
1796	checkbutton $inner.ygrid \
1797	-text "Y" \
1798	-variable [itcl::scope _settings(-ygrid)] \
1799	-command [itcl::code $this AdjustSetting -ygrid] \
1800	-font "Arial 9"
1801	checkbutton $inner.zgrid \
1802	-text "Z" \
1803	-variable [itcl::scope _settings(-zgrid)] \
1804	-command [itcl::code $this AdjustSetting -zgrid] \
1805	-font "Arial 9"
1806	checkbutton $inner.minorticks \
1807	-text "Minor Ticks" \
1808	-variable [itcl::scope _settings(-axisminorticks)] \
1809	-command [itcl::code $this AdjustSetting -axisminorticks] \
1810	-font "Arial 9"
1811
1812	label $inner.mode_l -text "Mode" -font "Arial 9"
1813
1814	itk_component add axismode {
1815	Rappture::Combobox $inner.mode -width 10 -editable no
1816	}
1817	$inner.mode choices insert end \
1818	"static_triad" "static" \
1819	"closest_triad" "closest" \
1820	"furthest_triad" "farthest" \
1821	"outer_edges" "outer"
1822	$itk_component(axismode) value $_settings(-axismode)
1823	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1824
1825	blt::table $inner \
1826	0,0 $inner.visible -anchor w -cspan 4 \
1827	1,0 $inner.labels -anchor w -cspan 4 \
1828	2,0 $inner.minorticks -anchor w -cspan 4 \
1829	4,0 $inner.grid_l -anchor w \
1830	4,1 $inner.xgrid -anchor w \
1831	4,2 $inner.ygrid -anchor w \
1832	4,3 $inner.zgrid -anchor w \
1833	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1834	5,1 $inner.mode -fill x -cspan 3
1835
1836	blt::table configure $inner r* c* -resize none
1837	blt::table configure $inner r7 c6 -resize expand
1838	blt::table configure $inner r3 -height 0.125i
1839	}
1840
1841	itcl::body Rappture::VtkStreamlinesViewer::BuildCameraTab {} {
1842	set inner [$itk_component(main) insert end \
1843	-title "Camera Settings" \
1844	-icon [Rappture::icon camera]]
1845	$inner configure -borderwidth 4
1846
1847	label $inner.view_l -text "view" -font "Arial 9"
1848	set f [frame $inner.view]
1849	foreach side { front back left right top bottom } {
1850	button $f.$side -image [Rappture::icon view$side] \
1851	-command [itcl::code $this SetOrientation $side]
1852	Rappture::Tooltip::for $f.$side "Change the view to $side"
1853	pack $f.$side -side left
1854	}
1855
1856	blt::table $inner \
1857	0,0 $inner.view_l -anchor e -pady 2 \
1858	0,1 $inner.view -anchor w -pady 2
1859	blt::table configure $inner r0 -resize none
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* -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 BCGYR
2145	-constcolor white
2146	-edgecolor black
2147	-edges 0
2148	-lighting 1
2149	-linewidth 1.0
2150	-mode lines
2151	-numseeds 200
2152	-opacity 1.0
2153	-seeds 1
2154	-seedcolor white
2155	-streamlineslength 0.7
2156	-surfacecolor white
2157	-surfaceedgecolor black
2158	-surfaceedges 0
2159	-surfacelighting 1
2160	-surfaceopacity 0.4
2161	-surfacevisible 1
2162	-surfacewireframe 0
2163	-visible 1
2164	}
2165	if { $dataobj != $_first } {
2166	set settings(-opacity) 1
2167	}
2168	array set settings $style
2169	StartBufferingCommands
2170	SendCmd "streamlines add $tag"
2171	SendCmd "streamlines color [Color2RGB $settings(-constcolor)] $tag"
2172	SendCmd "streamlines edges $settings(-edges) $tag"
2173	SendCmd "streamlines linecolor [Color2RGB $settings(-edgecolor)] $tag"
2174	SendCmd "streamlines linewidth $settings(-linewidth) $tag"
2175	SendCmd "streamlines lighting $settings(-lighting) $tag"
2176	SendCmd "streamlines opacity $settings(-opacity) $tag"
2177	SendCmd "streamlines seed color [Color2RGB $settings(-seedcolor)] $tag"
2178	SendCmd "streamlines seed visible $settings(-seeds) $tag"
2179	SendCmd "streamlines visible $settings(-visible) $tag"
2180	set seeds [$dataobj hints seeds]
2181	if { $seeds != "" && ![info exists _seeds($dataobj)] } {
2182	set length [string length $seeds]
2183	SendCmd "streamlines seed fmesh $settings(-numseeds) data follows $length $tag"
2184	SendData $seeds
2185	set _seeds($dataobj) 1
2186	}
2187	set _settings(-streamlineslighting) $settings(-lighting)
2188	$itk_component(streammode) value $settings(-mode)
2189	AdjustSetting -streamlinesmode
2190	set _settings(-streamlinesnumseeds) $settings(-numseeds)
2191	set _settings(-streamlinesopacity) [expr $settings(-opacity) * 100.0]
2192	set _settings(-streamlineslength) [expr $settings(-streamlineslength) * 100.0]
2193	set _settings(-streamlinesseedsvisible) $settings(-seeds)
2194	set _settings(-streamlinesvisible) $settings(-visible)
2195
2196	SendCmd "cutplane add $tag"
2197
2198	SendCmd "polydata add $tag"
2199	SendCmd "polydata color [Color2RGB $settings(-surfacecolor)] $tag"
2200	SendCmd "polydata colormode constant {} $tag"
2201	SendCmd "polydata edges $settings(-surfaceedges) $tag"
2202	SendCmd "polydata linecolor [Color2RGB $settings(-surfaceedgecolor)] $tag"
2203	SendCmd "polydata lighting $settings(-surfacelighting) $tag"
2204	SendCmd "polydata opacity $settings(-surfaceopacity) $tag"
2205	SendCmd "polydata wireframe $settings(-surfacewireframe) $tag"
2206	SendCmd "polydata visible $settings(-surfacevisible) $tag"
2207	set _settings(-surfaceedges) $settings(-surfaceedges)
2208	set _settings(-surfacelighting) $settings(-surfacelighting)
2209	set _settings(-surfaceopacity) [expr $settings(-surfaceopacity) * 100.0]
2210	set _settings(-surfacewireframe) $settings(-surfacewireframe)
2211	set _settings(-surfacevisible) $settings(-surfacevisible)
2212	StopBufferingCommands
2213	SetColormap $dataobj $comp
2214	$itk_component(colormap) value $settings(-color)
2215	}
2216
2217	itcl::body Rappture::VtkStreamlinesViewer::IsValidObject { dataobj } {
2218	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2219	return 0
2220	}
2221	return 1
2222	}
2223
2224	# ----------------------------------------------------------------------
2225	# USAGE: ReceiveLegend <colormap> <title> <vmin> <vmax> <size>
2226	#
2227	# Invoked automatically whenever the "legend" command comes in from
2228	# the rendering server. Indicates that binary image data with the
2229	# specified <size> will follow.
2230	# ----------------------------------------------------------------------
2231	itcl::body Rappture::VtkStreamlinesViewer::ReceiveLegend { colormap title vmin vmax size } {
2232	set _legendPending 0
2233	set _title $title
2234	regsub {\(mag\)} $title "" _title
2235	if { [IsConnected] } {
2236	set bytes [ReceiveBytes $size]
2237	if { ![info exists _image(legend)] } {
2238	set _image(legend) [image create photo]
2239	}
2240	$_image(legend) configure -data $bytes
2241	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2242	if { [catch {DrawLegend} errs] != 0 } {
2243	puts stderr errs=$errs
2244	}
2245	}
2246	}
2247
2248	#
2249	# DrawLegend --
2250	#
2251	# Draws the legend in it's own canvas which resides to the right
2252	# of the contour plot area.
2253	#
2254	itcl::body Rappture::VtkStreamlinesViewer::DrawLegend {} {
2255	set fname $_curFldName
2256	set c $itk_component(view)
2257	set w [winfo width $c]
2258	set h [winfo height $c]
2259	set font "Arial 8"
2260	set lineht [font metrics $font -linespace]
2261
2262	if { [info exists _fields($fname)] } {
2263	foreach { title units } $_fields($fname) break
2264	if { $units != "" } {
2265	set title [format "%s (%s)" $title $units]
2266	}
2267	} else {
2268	set title $fname
2269	}
2270	if { $_settings(-legendvisible) } {
2271	set x [expr $w - 2]
2272	if { [$c find withtag "legend"] == "" } {
2273	set y 2
2274	$c create text $x $y \
2275	-anchor ne \
2276	-fill $itk_option(-plotforeground) -tags "title legend" \
2277	-font $font
2278	incr y $lineht
2279	$c create text $x $y \
2280	-anchor ne \
2281	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2282	-font $font
2283	incr y $lineht
2284	$c create image $x $y \
2285	-anchor ne \
2286	-image $_image(legend) -tags "colormap legend"
2287	$c create text $x [expr {$h-2}] \
2288	-anchor se \
2289	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2290	-font $font
2291	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2292	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2293	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2294	}
2295	$c bind title <ButtonPress> [itcl::code $this Combo post]
2296	$c bind title <Enter> [itcl::code $this Combo activate]
2297	$c bind title <Leave> [itcl::code $this Combo deactivate]
2298	# Reset the item coordinates according the current size of the plot.
2299	$c itemconfigure title -text $title
2300	if { [info exists _limits($_curFldName)] } {
2301	foreach {vmin vmax} $_limits($_curFldName) break
2302	$c itemconfigure vmin -text [format %g $vmin]
2303	$c itemconfigure vmax -text [format %g $vmax]
2304	}
2305	set y 2
2306	$c coords title $x $y
2307	incr y $lineht
2308	$c coords vmax $x $y
2309	incr y $lineht
2310	$c coords colormap $x $y
2311	$c coords vmin $x [expr {$h - 2}]
2312	}
2313	}
2314
2315	#
2316	# EnterLegend --
2317	#
2318	itcl::body Rappture::VtkStreamlinesViewer::EnterLegend { x y } {
2319	SetLegendTip $x $y
2320	}
2321
2322	#
2323	# MotionLegend --
2324	#
2325	itcl::body Rappture::VtkStreamlinesViewer::MotionLegend { x y } {
2326	Rappture::Tooltip::tooltip cancel
2327	set c $itk_component(view)
2328	SetLegendTip $x $y
2329	}
2330
2331	#
2332	# LeaveLegend --
2333	#
2334	itcl::body Rappture::VtkStreamlinesViewer::LeaveLegend { } {
2335	Rappture::Tooltip::tooltip cancel
2336	.rappturetooltip configure -icon ""
2337	}
2338
2339	#
2340	# SetLegendTip --
2341	#
2342	itcl::body Rappture::VtkStreamlinesViewer::SetLegendTip { x y } {
2343	set c $itk_component(view)
2344	set w [winfo width $c]
2345	set h [winfo height $c]
2346	set font "Arial 8"
2347	set lineht [font metrics $font -linespace]
2348
2349	set imgHeight [image height $_image(legend)]
2350	set coords [$c coords colormap]
2351	set imgX [expr $w - [image width $_image(legend)] - 2]
2352	set imgY [expr $y - 2 * ($lineht + 2)]
2353
2354	if { [info exists _fields($_title)] } {
2355	foreach { title units } $_fields($_title) break
2356	if { $units != "" } {
2357	set title [format "%s (%s)" $title $units]
2358	}
2359	} else {
2360	set title $_title
2361	}
2362	# Make a swatch of the selected color
2363	if { [catch { $_image(legend) get 10 $imgY } pixel] != 0 } {
2364	#puts stderr "out of range: $imgY"
2365	return
2366	}
2367	if { ![info exists _image(swatch)] } {
2368	set _image(swatch) [image create photo -width 24 -height 24]
2369	}
2370	set color [eval format "\#%02x%02x%02x" $pixel]
2371	$_image(swatch) put black -to 0 0 23 23
2372	$_image(swatch) put $color -to 1 1 22 22
2373	.rappturetooltip configure -icon $_image(swatch)
2374
2375	# Compute the value of the point
2376	if { [info exists _limits($_curFldName)] } {
2377	foreach {vmin vmax} $_limits($_curFldName) break
2378	set t [expr 1.0 - (double($imgY) / double($imgHeight-1))]
2379	set value [expr $t * ($vmax - $vmin) + $vmin]
2380	} else {
2381	set value 0.0
2382	}
2383	set tipx [expr $x + 15]
2384	set tipy [expr $y - 5]
2385	Rappture::Tooltip::text $c "$title $value"
2386	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2387	}
2388
2389	# ----------------------------------------------------------------------
2390	# USAGE: Slice move x\|y\|z <newval>
2391	#
2392	# Called automatically when the user drags the slider to move the
2393	# cut plane that slices 3D data. Gets the current value from the
2394	# slider and moves the cut plane to the appropriate point in the
2395	# data set.
2396	# ----------------------------------------------------------------------
2397	itcl::body Rappture::VtkStreamlinesViewer::Slice {option args} {
2398	switch -- $option {
2399	"move" {
2400	set axis [lindex $args 0]
2401	set newval [lindex $args 1]
2402	if {[llength $args] != 2} {
2403	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2404	}
2405	set newpos [expr {0.01*$newval}]
2406	SendCmd "cutplane slice $axis $newpos"
2407	}
2408	"tooltip" {
2409	set axis [lindex $args 0]
2410	set val [$itk_component(${axis}CutScale) get]
2411	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2412	}
2413	default {
2414	error "bad option \"$option\": should be axis, move, or tooltip"
2415	}
2416	}
2417	}
2418
2419	# ----------------------------------------------------------------------
2420	# USAGE: _dropdown post
2421	# USAGE: _dropdown unpost
2422	# USAGE: _dropdown select
2423	#
2424	# Used internally to handle the dropdown list for this combobox. The
2425	# post/unpost options are invoked when the list is posted or unposted
2426	# to manage the relief of the controlling button. The select option
2427	# is invoked whenever there is a selection from the list, to assign
2428	# the value back to the gauge.
2429	# ----------------------------------------------------------------------
2430	itcl::body Rappture::VtkStreamlinesViewer::Combo {option} {
2431	set c $itk_component(view)
2432	switch -- $option {
2433	post {
2434	foreach { x1 y1 x2 y2 } [$c bbox title] break
2435	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2436	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2437	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2438	tk_popup $itk_component(fieldmenu) $x $y
2439	}
2440	activate {
2441	$c itemconfigure title -fill red
2442	}
2443	deactivate {
2444	$c itemconfigure title -fill white
2445	}
2446	invoke {
2447	$itk_component(field) value $_curFldLabel
2448	AdjustSetting -field
2449	}
2450	default {
2451	error "bad option \"$option\": should be post, unpost, select"
2452	}
2453	}
2454	}
2455
2456	itcl::body Rappture::VtkStreamlinesViewer::SetOrientation { side } {
2457	array set positions {
2458	front "1 0 0 0"
2459	back "0 0 1 0"
2460	left "0.707107 0 -0.707107 0"
2461	right "0.707107 0 0.707107 0"
2462	top "0.707107 -0.707107 0 0"
2463	bottom "0.707107 0.707107 0 0"
2464	}
2465	foreach name { -qw -qx -qy -qz } value $positions($side) {
2466	set _view($name) $value
2467	}
2468	set q [ViewToQuaternion]
2469	$_arcball quaternion $q
2470	SendCmd "camera orient $q"
2471	SendCmd "camera reset"
2472	set _view(-xpan) 0
2473	set _view(-ypan) 0
2474	set _view(-zoom) 1.0
2475	}

Note: See TracBrowser for help on using the repository browser.

Download in other formats: