Context Navigation

source: trunk/gui/scripts/flowvisviewer.tcl @ 6260

Last change on this file since 6260 was 6260, checked in by ldelgass, 8 years ago
code style fix
File size: 100.8 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: flowvisviewer - 3D flow rendering
4	#
5	# This widget performs volume and flow rendering on 3D vector datasets.
6	# It connects to the Nanovis server running on a rendering farm,
7	# transmits data, and displays the results.
8	# ======================================================================
9	# AUTHOR: Michael McLennan, Purdue University
10	# Copyright (c) 2004-2016 HUBzero Foundation, LLC
11	#
12	# See the file "license.terms" for information on usage and
13	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14	# ======================================================================
15	package require Itk
16	package require BLT
17	package require Img
18
19	option add *FlowvisViewer.width 5i widgetDefault
20	option add FlowvisViewercursor crosshair widgetDefault
21	option add *FlowvisViewer.height 4i widgetDefault
22	option add *FlowvisViewer.foreground black widgetDefault
23	option add *FlowvisViewer.controlBackground gray widgetDefault
24	option add *FlowvisViewer.controlDarkBackground #999999 widgetDefault
25	option add *FlowvisViewer.plotBackground black widgetDefault
26	option add *FlowvisViewer.plotForeground white widgetDefault
27	option add *FlowvisViewer.plotOutline gray widgetDefault
28	option add *FlowvisViewer.font \
29	--helvetica-medium-r-normal--12-* widgetDefault
30
31	# must use this name -- plugs into Rappture::resources::load
32	proc FlowvisViewer_init_resources {} {
33	Rappture::resources::register \
34	nanovis_server Rappture::FlowvisViewer::SetServerList
35	}
36
37	itcl::class Rappture::FlowvisViewer {
38	inherit Rappture::VisViewer
39
40	itk_option define -plotforeground plotForeground Foreground ""
41	itk_option define -plotbackground plotBackground Background ""
42	itk_option define -plotoutline plotOutline PlotOutline ""
43
44	constructor { args } {
45	Rappture::VisViewer::constructor
46	} {
47	# defined below
48	}
49	destructor {
50	# defined below
51	}
52	public proc SetServerList { namelist } {
53	Rappture::VisViewer::SetServerList "nanovis" $namelist
54	}
55	public method add {dataobj {settings ""}}
56	public method camera {option args}
57	public method delete {args}
58	public method disconnect {}
59	public method download {option args}
60	public method flow {option}
61	public method get {args}
62	public method isconnected {}
63	public method limits { cname }
64	public method overMarker { m x }
65	public method parameters {title args} {
66	# do nothing
67	}
68	public method removeDuplicateMarker { m x }
69	public method scale {args}
70	public method updateTransferFunctions {}
71
72	# The following methods are only used by this class.
73	private method AddIsoMarker { x y }
74	private method AdjustSetting {what {value ""}}
75	private method BuildCameraTab {}
76	private method BuildCutplanesTab {}
77	private method BuildDownloadPopup { widget command }
78	private method BuildViewTab {}
79	private method BuildVolumeComponents {}
80	private method BuildVolumeTab {}
81	private method ComputeTransferFunction { tf }
82	private method Connect {}
83	private method CurrentDatasets {{what -all}}
84	private method Disconnect {}
85	private method DoResize {}
86	private method DrawLegend { tf }
87	private method EventuallyGoto { nSteps }
88	private method EventuallyRedrawLegend { }
89	private method EventuallyResize { w h }
90	private method FixLegend {}
91	private method GetDatasetsWithComponent { cname }
92	private method GetFlowInfo { widget }
93	private method GetImage { args }
94	private method GetMovie { widget width height }
95	private method GetPngImage { widget width height }
96	private method GetVtkData { args }
97	private method InitSettings { args }
98	private method NameTransferFunction { dataobj comp }
99	private method Pan {option x y}
100	private method PanCamera {}
101	private method ParseLevelsOption { tf levels }
102	private method ParseMarkersOption { tf markers }
103	private method QuaternionToView { q } {
104	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
105	}
106	private method Rebuild {}
107	private method ReceiveData { args }
108	private method ReceiveImage { args }
109	private method ReceiveLegend { tf vmin vmax size }
110	private method Rotate {option x y}
111	private method SendFlowCmd { dataobj comp nbytes numComponents }
112	private method SendTransferFunctions {}
113	private method SetOrientation { side }
114	private method Slice {option args}
115	private method SlicerTip {axis}
116	private method ViewToQuaternion {} {
117	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
118	}
119	private method WaitIcon { option widget }
120	private method Zoom {option}
121	private method arrows { tag name }
122	private method box { tag name }
123	private method millisecs2str { value }
124	private method particles { tag name }
125	private method str2millisecs { value }
126	private method streams { tag name }
127
128	private variable _arcball ""
129	private variable _dlist ""; # list of data objects
130	private variable _obj2ovride; # maps dataobj => style override
131	private variable _datasets; # maps dataobj-component
132	# to volumes in the server
133	private variable _dataset2style; # maps dataobj-component to transfunc
134	private variable _style2datasets; # maps tf back to list of
135	# dataobj-components using the tf.
136	private variable _dataset2flow; # Maps dataobj-component to a flow.
137
138	private variable _reset 1; # Connection to server has been reset.
139	private variable _click; # Info used for rotate operations.
140	private variable _limits; # Autoscale min/max for all axes
141	private variable _view; # View params for 3D view
142	private variable _isomarkers; # array of isosurface level values 0..1
143	private variable _settings
144	private variable _activeTf ""; # Currently active transfer function
145	private variable _first ""; # This is the topmost volume.
146	private variable _volcomponents; # Maps component name to list of
147	# dataobj-component tags
148	private variable _componentsList; # List of components found
149	private variable _nextToken 0
150	private variable _icon 0
151	private variable _flow
152	private variable _width 0
153	private variable _height 0
154	private variable _resizePending 0
155	private variable _resizeLegendPending 0
156	private variable _gotoPending 0
157
158	private common _downloadPopup; # download options from popup
159	private common _hardcopy
160	}
161
162	itk::usual FlowvisViewer {
163	keep -background -foreground -cursor -font
164	keep -plotbackground -plotforeground
165	}
166
167	# ----------------------------------------------------------------------
168	# CONSTRUCTOR
169	# ----------------------------------------------------------------------
170	itcl::body Rappture::FlowvisViewer::constructor {args} {
171	set _serverType "nanovis"
172
173	#DebugOn
174	EnableWaitDialog 900
175
176	# Rebuild event
177	$_dispatcher register !rebuild
178	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
179
180	# Resize event
181	$_dispatcher register !resize
182	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
183
184	# Legend event
185	$_dispatcher register !legend
186	$_dispatcher dispatch $this !legend "[itcl::code $this FixLegend]; list"
187
188	# Send transfer functions event
189	$_dispatcher register !send_transfunc
190	$_dispatcher dispatch $this !send_transfunc \
191	"[itcl::code $this SendTransferFunctions]; list"
192
193	$_dispatcher register !play
194	$_dispatcher dispatch $this !play "[itcl::code $this flow next]; list"
195
196	$_dispatcher register !goto
197	$_dispatcher dispatch $this !goto "[itcl::code $this flow goto2]; list"
198
199	$_dispatcher register !movietimeout
200	$_dispatcher register !waiticon
201
202	set _flow(state) 0
203
204	array set _downloadPopup {
205	format vtk
206	}
207	#
208	# Populate parser with commands handle incoming requests
209	#
210	$_parser alias image [itcl::code $this ReceiveImage]
211	$_parser alias legend [itcl::code $this ReceiveLegend]
212	$_parser alias data [itcl::code $this ReceiveData]
213
214	# Initialize the view to some default parameters.
215	array set _view {
216	-qw 0.853553
217	-qx -0.353553
218	-qy 0.353553
219	-qz 0.146447
220	-xpan 0
221	-ypan 0
222	-zoom 1.0
223	}
224	set _arcball [blt::arcball create 100 100]
225	$_arcball quaternion [ViewToQuaternion]
226
227	array set _settings [subst {
228	-ambient 60
229	-arrows 0
230	-axesvisible 0
231	-background black
232	-colormap BCGYR
233	-currenttime 0
234	-cutplanesvisible 0
235	-diffuse 40
236	-duration 1:00
237	-gridvisible 0
238	-isosurfaceshading 0
239	-legendvisible 1
240	-lic 1
241	-light2side 1
242	-loop 0
243	-opacity 50
244	-outlinevisible 1
245	-particles 1
246	-play 0
247	-qw $_view(-qw)
248	-qx $_view(-qx)
249	-qy $_view(-qy)
250	-qz $_view(-qz)
251	-specularexponent 90
252	-specularlevel 30
253	-speed 500
254	-step 0
255	-streams 0
256	-thickness 350
257	-volume 1
258	-xcutplaneposition 50
259	-xcutplanevisible 1
260	-xpan $_view(-xpan)
261	-ycutplaneposition 50
262	-ycutplanevisible 1
263	-ypan $_view(-ypan)
264	-zcutplaneposition 50
265	-zcutplanevisible 1
266	-zoom $_view(-zoom)
267	}]
268
269	itk_component add view {
270	label $itk_component(plotarea).view -image $_image(plot) \
271	-highlightthickness 0 -borderwidth 0
272	} {
273	usual
274	ignore -highlightthickness -borderwidth -background
275	}
276	bind $itk_component(view) <Control-F1> [itcl::code $this ToggleConsole]
277
278	set f [$itk_component(main) component controls]
279	itk_component add reset {
280	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
281	-highlightthickness 0 \
282	-image [Rappture::icon reset-view] \
283	-command [itcl::code $this Zoom reset]
284	} {
285	usual
286	ignore -highlightthickness
287	}
288	pack $itk_component(reset) -side top -padx 2 -pady 2
289	Rappture::Tooltip::for $itk_component(reset) \
290	"Reset the view to the default zoom level"
291
292	itk_component add zoomin {
293	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
294	-highlightthickness 0 \
295	-image [Rappture::icon zoom-in] \
296	-command [itcl::code $this Zoom in]
297	} {
298	usual
299	ignore -highlightthickness
300	}
301	pack $itk_component(zoomin) -side top -padx 2 -pady 2
302	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
303
304	itk_component add zoomout {
305	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
306	-highlightthickness 0 \
307	-image [Rappture::icon zoom-out] \
308	-command [itcl::code $this Zoom out]
309	} {
310	usual
311	ignore -highlightthickness
312	}
313	pack $itk_component(zoomout) -side top -padx 2 -pady 2
314	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
315
316	itk_component add volume {
317	Rappture::PushButton $f.volume \
318	-onimage [Rappture::icon volume-on] \
319	-offimage [Rappture::icon volume-off] \
320	-variable [itcl::scope _settings(-volume)] \
321	-command [itcl::code $this AdjustSetting -volume]
322	}
323	$itk_component(volume) select
324	Rappture::Tooltip::for $itk_component(volume) \
325	"Toggle the volume cloud on/off"
326	pack $itk_component(volume) -padx 2 -pady 2
327
328	itk_component add cutplane {
329	Rappture::PushButton $f.cutplane \
330	-onimage [Rappture::icon cutbutton] \
331	-offimage [Rappture::icon cutbutton] \
332	-variable [itcl::scope _settings(-cutplanesvisible)] \
333	-command [itcl::code $this AdjustSetting -cutplanesvisible]
334	}
335	Rappture::Tooltip::for $itk_component(cutplane) \
336	"Show/Hide cutplanes"
337	pack $itk_component(cutplane) -padx 2 -pady 2
338
339	if { [catch {
340	BuildViewTab
341	BuildVolumeTab
342	BuildCutplanesTab
343	BuildCameraTab
344	} errs] != 0 } {
345	global errorInfo
346	puts stderr "errs=$errs errorInfo=$errorInfo"
347	}
348
349	# Legend
350	set _image(legend) [image create photo]
351	itk_component add legend {
352	canvas $itk_component(plotarea).legend -height 50 -highlightthickness 0
353	} {
354	usual
355	ignore -highlightthickness
356	rename -background -plotbackground plotBackground Background
357	}
358	bind $itk_component(legend) <Configure> \
359	[itcl::code $this EventuallyRedrawLegend]
360
361	# Hack around the Tk panewindow. The problem is that the requested
362	# size of the 3d view isn't set until an image is retrieved from
363	# the server. So the panewindow uses the tiny size.
364	set w 10000
365	pack forget $itk_component(view)
366	blt::table $itk_component(plotarea) \
367	0,0 $itk_component(view) -fill both -reqwidth $w \
368	1,0 $itk_component(legend) -fill x
369	blt::table configure $itk_component(plotarea) r1 -resize none
370
371	# Create flow controls...
372	itk_component add flowcontrols {
373	frame $itk_interior.flowcontrols
374	} {
375	usual
376	rename -background -controlbackground controlBackground Background
377	}
378	pack forget $itk_component(main)
379	blt::table $itk_interior \
380	0,0 $itk_component(main) -fill both \
381	1,0 $itk_component(flowcontrols) -fill x
382	blt::table configure $itk_interior r1 -resize none
383
384	# Rewind
385	itk_component add rewind {
386	button $itk_component(flowcontrols).reset \
387	-borderwidth 1 -padx 1 -pady 1 \
388	-image [Rappture::icon flow-rewind] \
389	-command [itcl::code $this flow reset]
390	} {
391	usual
392	ignore -borderwidth
393	rename -highlightbackground -controlbackground controlBackground \
394	Background
395	}
396	Rappture::Tooltip::for $itk_component(rewind) \
397	"Rewind flow"
398
399	# Stop
400	itk_component add stop {
401	button $itk_component(flowcontrols).stop \
402	-borderwidth 1 -padx 1 -pady 1 \
403	-image [Rappture::icon flow-stop] \
404	-command [itcl::code $this flow stop]
405	} {
406	usual
407	ignore -borderwidth
408	rename -highlightbackground -controlbackground controlBackground \
409	Background
410	}
411	Rappture::Tooltip::for $itk_component(stop) \
412	"Stop flow"
413
414	# Play
415	itk_component add play {
416	Rappture::PushButton $itk_component(flowcontrols).play \
417	-onimage [Rappture::icon flow-pause] \
418	-offimage [Rappture::icon flow-play] \
419	-variable [itcl::scope _settings(-play)] \
420	-command [itcl::code $this flow toggle]
421	}
422	set fg [option get $itk_component(hull) font Font]
423	Rappture::Tooltip::for $itk_component(play) \
424	"Play/Pause flow"
425
426	# Loop
427	itk_component add loop {
428	Rappture::PushButton $itk_component(flowcontrols).loop \
429	-onimage [Rappture::icon flow-loop] \
430	-offimage [Rappture::icon flow-loop] \
431	-variable [itcl::scope _settings(-loop)]
432	}
433	Rappture::Tooltip::for $itk_component(loop) \
434	"Play continuously"
435
436	itk_component add dial {
437	Rappture::Flowdial $itk_component(flowcontrols).dial \
438	-length 10 -valuewidth 0 -valuepadding 0 -padding 6 \
439	-linecolor "" -activelinecolor "" \
440	-min 0.0 -max 1.0 \
441	-variable [itcl::scope _settings(-currenttime)] \
442	-knobimage [Rappture::icon knob2] -knobposition center@middle
443	} {
444	usual
445	ignore -dialprogresscolor
446	rename -background -controlbackground controlBackground Background
447	}
448	$itk_component(dial) current 0.0
449	bind $itk_component(dial) <<Value>> [itcl::code $this flow goto]
450	# Duration
451	itk_component add duration {
452	entry $itk_component(flowcontrols).duration \
453	-textvariable [itcl::scope _settings(-duration)] \
454	-bg white -width 6 -font "arial 9"
455	} {
456	usual
457	ignore -highlightthickness -background
458	}
459	bind $itk_component(duration) <Return> [itcl::code $this flow duration]
460	bind $itk_component(duration) <KP_Enter> [itcl::code $this flow duration]
461	bind $itk_component(duration) <Tab> [itcl::code $this flow duration]
462	Rappture::Tooltip::for $itk_component(duration) \
463	"Set duration of flow (format is min:sec)"
464
465	itk_component add durationlabel {
466	label $itk_component(flowcontrols).durationl \
467	-text "Duration:" -font $fg \
468	-highlightthickness 0
469	} {
470	usual
471	ignore -highlightthickness
472	rename -background -controlbackground controlBackground Background
473	}
474
475	itk_component add speedlabel {
476	label $itk_component(flowcontrols).speedl -text "Speed:" -font $fg \
477	-highlightthickness 0
478	} {
479	usual
480	ignore -highlightthickness
481	rename -background -controlbackground controlBackground Background
482	}
483
484	# Speed
485	itk_component add speed {
486	Rappture::Flowspeed $itk_component(flowcontrols).speed \
487	-min 1 -max 10 -width 3 -font "arial 9"
488	} {
489	usual
490	ignore -highlightthickness
491	rename -background -controlbackground controlBackground Background
492	}
493	Rappture::Tooltip::for $itk_component(speed) \
494	"Change speed of flow"
495
496	$itk_component(speed) value 1
497	bind $itk_component(speed) <<Value>> [itcl::code $this flow speed]
498
499
500	blt::table $itk_component(flowcontrols) \
501	0,0 $itk_component(rewind) -padx {3 0} \
502	0,1 $itk_component(stop) -padx {2 0} \
503	0,2 $itk_component(play) -padx {2 0} \
504	0,3 $itk_component(loop) -padx {2 0} \
505	0,4 $itk_component(dial) -fill x -padx {2 0 } \
506	0,5 $itk_component(duration) -padx { 0 0} \
507	0,7 $itk_component(speed) -padx {2 3}
508
509	# 0,6 $itk_component(speedlabel) -padx {2 0}
510	blt::table configure $itk_component(flowcontrols) c* -resize none
511	blt::table configure $itk_component(flowcontrols) c4 -resize both
512	blt::table configure $itk_component(flowcontrols) r0 -pady 1
513	# Bindings for rotation via mouse
514	bind $itk_component(view) <ButtonPress-1> \
515	[itcl::code $this Rotate click %x %y]
516	bind $itk_component(view) <B1-Motion> \
517	[itcl::code $this Rotate drag %x %y]
518	bind $itk_component(view) <ButtonRelease-1> \
519	[itcl::code $this Rotate release %x %y]
520
521	bind $itk_component(view) <Configure> \
522	[itcl::code $this EventuallyResize %w %h]
523
524	# Bindings for panning via mouse
525	bind $itk_component(view) <ButtonPress-2> \
526	[itcl::code $this Pan click %x %y]
527	bind $itk_component(view) <B2-Motion> \
528	[itcl::code $this Pan drag %x %y]
529	bind $itk_component(view) <ButtonRelease-2> \
530	[itcl::code $this Pan release %x %y]
531
532	# Bindings for panning via keyboard
533	bind $itk_component(view) <KeyPress-Left> \
534	[itcl::code $this Pan set -10 0]
535	bind $itk_component(view) <KeyPress-Right> \
536	[itcl::code $this Pan set 10 0]
537	bind $itk_component(view) <KeyPress-Up> \
538	[itcl::code $this Pan set 0 -10]
539	bind $itk_component(view) <KeyPress-Down> \
540	[itcl::code $this Pan set 0 10]
541	bind $itk_component(view) <Shift-KeyPress-Left> \
542	[itcl::code $this Pan set -2 0]
543	bind $itk_component(view) <Shift-KeyPress-Right> \
544	[itcl::code $this Pan set 2 0]
545	bind $itk_component(view) <Shift-KeyPress-Up> \
546	[itcl::code $this Pan set 0 -2]
547	bind $itk_component(view) <Shift-KeyPress-Down> \
548	[itcl::code $this Pan set 0 2]
549
550	# Bindings for zoom via keyboard
551	bind $itk_component(view) <KeyPress-Prior> \
552	[itcl::code $this Zoom out]
553	bind $itk_component(view) <KeyPress-Next> \
554	[itcl::code $this Zoom in]
555
556	bind $itk_component(view) <Enter> "focus $itk_component(view)"
557
558	if {[string equal "x11" [tk windowingsystem]]} {
559	# Bindings for zoom via mouse
560	bind $itk_component(view) <4> [itcl::code $this Zoom out]
561	bind $itk_component(view) <5> [itcl::code $this Zoom in]
562	}
563
564	set _image(download) [image create photo]
565
566	eval itk_initialize $args
567	Connect
568	}
569
570	# ----------------------------------------------------------------------
571	# DESTRUCTOR
572	# ----------------------------------------------------------------------
573	itcl::body Rappture::FlowvisViewer::destructor {} {
574	$_dispatcher cancel !rebuild
575	$_dispatcher cancel !send_transfunc
576	$_dispatcher cancel !resize
577	image delete $_image(plot)
578	image delete $_image(legend)
579	image delete $_image(download)
580	catch { blt::arcball destroy $_arcball }
581	array unset _settings
582	}
583
584	# ----------------------------------------------------------------------
585	# USAGE: add <dataobj> ?<settings>?
586	#
587	# Clients use this to add a data object to the plot. The optional
588	# <settings> are used to configure the plot. Allowed settings are
589	# -color, -brightness, -width, -linestyle, and -raise.
590	# ----------------------------------------------------------------------
591	itcl::body Rappture::FlowvisViewer::add {dataobj {settings ""}} {
592	if { ![$dataobj isvalid] } {
593	return; # Object doesn't contain valid data.
594	}
595	array set params {
596	-color auto
597	-width 1
598	-linestyle solid
599	-brightness 0
600	-raise 0
601	-description ""
602	-param ""
603	}
604	array set params $settings
605
606	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
607	# can't handle -autocolors yet
608	set params(-color) black
609	}
610	foreach cname [$dataobj components] {
611	set flowobj [$dataobj flowhints $cname]
612	if { $flowobj == "" } {
613	puts stderr "no flowhints $dataobj-$cname"
614	continue
615	}
616	set _dataset2flow($dataobj-$cname) $flowobj
617	}
618	set pos [lsearch -exact $_dlist $dataobj]
619	if {$pos < 0} {
620	lappend _dlist $dataobj
621	set _obj2ovride($dataobj-color) $params(-color)
622	set _obj2ovride($dataobj-width) $params(-width)
623	set _obj2ovride($dataobj-raise) $params(-raise)
624	$_dispatcher event -idle !rebuild
625	}
626	}
627
628	# ----------------------------------------------------------------------
629	# USAGE: get ?-objects?
630	# USAGE: get ?-image view\|legend?
631	#
632	# Clients use this to query the list of objects being plotted, in
633	# order from bottom to top of this result. The optional "-image"
634	# flag can also request the internal images being shown.
635	# ----------------------------------------------------------------------
636	itcl::body Rappture::FlowvisViewer::get {args} {
637	if {[llength $args] == 0} {
638	set args "-objects"
639	}
640
641	set op [lindex $args 0]
642	switch -- $op {
643	-objects {
644	# put the dataobj list in order according to -raise options
645	set dlist $_dlist
646	foreach dataobj $dlist {
647	if {[info exists _obj2ovride($dataobj-raise)] &&
648	$_obj2ovride($dataobj-raise)} {
649	set i [lsearch -exact $dlist $dataobj]
650	if {$i >= 0} {
651	set dlist [lreplace $dlist $i $i]
652	lappend dlist $dataobj
653	}
654	}
655	}
656	return $dlist
657	}
658	-image {
659	if {[llength $args] != 2} {
660	error "wrong # args: should be \"get -image view\|legend\""
661	}
662	switch -- [lindex $args end] {
663	view {
664	return $_image(plot)
665	}
666	legend {
667	return $_image(legend)
668	}
669	default {
670	error "bad image name \"[lindex $args end]\": should be view or legend"
671	}
672	}
673	}
674	default {
675	error "bad option \"$op\": should be -objects or -image"
676	}
677	}
678	}
679
680	# ----------------------------------------------------------------------
681	# USAGE: delete ?<dataobj1> <dataobj2> ...?
682	#
683	# Clients use this to delete a dataobj from the plot. If no dataobjs
684	# are specified, then all dataobjs are deleted. No data objects are
685	# deleted. They are only removed from the display list.
686	# ----------------------------------------------------------------------
687	itcl::body Rappture::FlowvisViewer::delete {args} {
688	flow stop
689	if {[llength $args] == 0} {
690	set args $_dlist
691	}
692	# Delete all specified dataobjs
693	set changed 0
694	foreach dataobj $args {
695	set pos [lsearch -exact $_dlist $dataobj]
696	if { $pos >= 0 } {
697	set _dlist [lreplace $_dlist $pos $pos]
698	array unset _obj2ovride $dataobj-*
699	set changed 1
700	}
701	}
702	# If anything changed, then rebuild the plot
703	if {$changed} {
704	$_dispatcher event -idle !rebuild
705	}
706	}
707
708	# ----------------------------------------------------------------------
709	# USAGE: scale ?<data1> <data2> ...?
710	#
711	# Sets the default limits for the overall plot according to the
712	# limits of the data for all of the given <data> objects. This
713	# accounts for all objects--even those not showing on the screen.
714	# Because of this, the limits are appropriate for all objects as
715	# the user scans through data in the ResultSet viewer.
716	# ----------------------------------------------------------------------
717	itcl::body Rappture::FlowvisViewer::scale {args} {
718	array set style {
719	-color BCGYR
720	-levels 6
721	-markers ""
722	}
723	array unset _limits
724	array unset _volcomponents
725	foreach dataobj $args {
726	if { ![$dataobj isvalid] } {
727	continue; # Object doesn't contain valid data.
728	}
729	foreach cname [$dataobj components] {
730	if { ![info exists _volcomponents($cname)] } {
731	lappend _componentsList $cname
732	array set style [lindex [$dataobj components -style $cname] 0]
733	set cmap [ColorsToColormap $style(-color)]
734	set _settings($cname-colormap) $style(-color)
735	}
736	lappend _volcomponents($cname) $dataobj-$cname
737	array unset limits
738	array set limits [$dataobj valueLimits $cname]
739	set _limits($cname) $limits(v)
740	}
741	foreach axis {x y z} {
742	foreach { min max } [$dataobj limits $axis] break
743	if {"" != $min && "" != $max} {
744	if { ![info exists _limits($axis)] } {
745	set _limits($axis) [list $min $max]
746	continue
747	}
748	foreach {amin amax} $_limits($axis) break
749	if {$min < $amin} {
750	set amin $min
751	}
752	if {$max > $amax} {
753	set amax $max
754	}
755	set _limits($axis) [list $amin $amax]
756	}
757	}
758	}
759	#BuildVolumeComponents
760	}
761
762	# ----------------------------------------------------------------------
763	# USAGE: download coming
764	# USAGE: download controls <downloadCommand>
765	# USAGE: download now
766	#
767	# Clients use this method to create a downloadable representation
768	# of the plot. Returns a list of the form {ext string}, where
769	# "ext" is the file extension (indicating the type of data) and
770	# "string" is the data itself.
771	# ----------------------------------------------------------------------
772	itcl::body Rappture::FlowvisViewer::download {option args} {
773	switch $option {
774	coming {
775	if {[catch {
776	blt::winop snap $itk_component(plotarea) $_image(download)
777	}]} {
778	$_image(download) configure -width 1 -height 1
779	$_image(download) put #000000
780	}
781	}
782	controls {
783	set popup .flowvisviewerdownload
784	if { ![winfo exists $popup] } {
785	set inner [BuildDownloadPopup $popup [lindex $args 0]]
786	} else {
787	set inner [$popup component inner]
788	}
789	# FIXME: we only support download of current active component
790	#set num [llength [get]]
791	#set num [expr {($num == 1) ? "1 result" : "$num results"}]
792	set num "current flow"
793	set word [Rappture::filexfer::label downloadWord]
794	$inner.summary configure -text "$word $num in the following format:"
795	update idletasks ;# Fix initial sizes
796	return $popup
797	}
798	now {
799	set popup .flowvisviewerdownload
800	if { [winfo exists $popup] } {
801	$popup deactivate
802	}
803	switch -- $_downloadPopup(format) {
804	"640x480" {
805	return [$this GetMovie [lindex $args 0] 640 480]
806	}
807	"1024x768" {
808	return [$this GetMovie [lindex $args 0] 1024 768]
809	}
810	"image" {
811	return [$this GetImage [lindex $args 0]]
812	}
813	"vtk" {
814	return [$this GetVtkData [lindex $args 0]]
815	}
816	default {
817	error "bad download format \"$_downloadPopup(format)\""
818	}
819	}
820	}
821	default {
822	error "bad option \"$option\": should be coming, controls, now"
823	}
824	}
825	}
826
827	# ----------------------------------------------------------------------
828	# USAGE: Connect ?<host:port>,<host:port>...?
829	#
830	# Clients use this method to establish a connection to a new
831	# server, or to reestablish a connection to the previous server.
832	# Any existing connection is automatically closed.
833	# ----------------------------------------------------------------------
834	itcl::body Rappture::FlowvisViewer::Connect {} {
835	set _hosts [GetServerList "nanovis"]
836	if { "" == $_hosts } {
837	return 0
838	}
839	set _reset 1
840	set result [VisViewer::Connect $_hosts]
841	if { $result } {
842	if { $_reportClientInfo } {
843	# Tell the server the viewer, hub, user and session.
844	# Do this immediately on connect before buffering any commands
845	global env
846
847	set info {}
848	set user "???"
849	if { [info exists env(USER)] } {
850	set user $env(USER)
851	}
852	set session "???"
853	if { [info exists env(SESSION)] } {
854	set session $env(SESSION)
855	}
856	lappend info "version" "$Rappture::version"
857	lappend info "build" "$Rappture::build"
858	lappend info "svnurl" "$Rappture::svnurl"
859	lappend info "installdir" "$Rappture::installdir"
860	lappend info "hub" [exec hostname]
861	lappend info "client" "flowvisviewer"
862	lappend info "user" $user
863	lappend info "session" $session
864	SendCmd "clientinfo [list $info]"
865	}
866
867	set w [winfo width $itk_component(view)]
868	set h [winfo height $itk_component(view)]
869	EventuallyResize $w $h
870	}
871	return $result
872	}
873
874	#
875	# isconnected --
876	#
877	# Indicates if we are currently connected to the visualization server.
878	#
879	itcl::body Rappture::FlowvisViewer::isconnected {} {
880	return [VisViewer::IsConnected]
881	}
882
883	#
884	# disconnect --
885	#
886	itcl::body Rappture::FlowvisViewer::disconnect {} {
887	Disconnect
888	}
889
890	#
891	# Disconnect --
892	#
893	# Clients use this method to disconnect from the current rendering server.
894	#
895	itcl::body Rappture::FlowvisViewer::Disconnect {} {
896	VisViewer::Disconnect
897
898	# disconnected -- no more data sitting on server
899	array unset _datasets
900	}
901
902	# ----------------------------------------------------------------------
903	# USAGE: SendTransferFunctions
904	# ----------------------------------------------------------------------
905	itcl::body Rappture::FlowvisViewer::SendTransferFunctions {} {
906	if { $_activeTf == "" } {
907	puts stderr "no active tf"
908	return
909	}
910	set tf $_activeTf
911	if { $_first == "" } {
912	puts stderr "first not set"
913	return
914	}
915
916	# Ensure that the global thickness setting (in the slider
917	# settings widget) is used for the active transfer-function. Update
918	# the value in the _settings variable.
919
920	# Scale values between 0.00001 and 0.01000
921	set thickness [expr {double($_settings(-thickness)) * 0.0001}]
922	set _settings($tf-thickness) $thickness
923
924	foreach tag [array names _dataset2style $_first-*] {
925	if { [info exists _dataset2style($tag)] } {
926	foreach tf $_dataset2style($tag) {
927	ComputeTransferFunction $tf
928	}
929	}
930	}
931	EventuallyRedrawLegend
932	}
933
934	# ----------------------------------------------------------------------
935	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
936	#
937	# Invoked automatically whenever the "image" command comes in from
938	# the rendering server. Indicates that binary image data with the
939	# specified <size> will follow.
940	# ----------------------------------------------------------------------
941	itcl::body Rappture::FlowvisViewer::ReceiveImage { args } {
942	array set info {
943	-token "???"
944	-bytes 0
945	-type image
946	}
947	array set info $args
948	set bytes [ReceiveBytes $info(-bytes)]
949	switch -- $info(-type) {
950	"image" {
951	#puts stderr "received image [image width $_image(plot)]x[image height $_image(plot)]"
952	$_image(plot) configure -data $bytes
953	}
954	"print" {
955	set tag $this-$info(-token)
956	set _hardcopy($tag) $bytes
957	}
958	"movie" {
959	set tag $this-$info(-token)
960	set _hardcopy($tag) $bytes
961	}
962	default {
963	puts stderr "unknown image type $info(-type)"
964	}
965	}
966	}
967
968	#
969	# DrawLegend --
970	#
971	itcl::body Rappture::FlowvisViewer::DrawLegend { tag } {
972	set c $itk_component(legend)
973	set w [winfo width $c]
974	set h [winfo height $c]
975	set lx 10
976	set ly [expr {$h - 1}]
977	if {"" == [$c find withtag colorbar]} {
978	$c create image 10 10 -anchor nw \
979	-image $_image(legend) -tags colorbar
980	$c create text $lx $ly -anchor sw \
981	-fill $itk_option(-plotforeground) -tags "limits text vmin"
982	$c create text [expr {$w-$lx}] $ly -anchor se \
983	-fill $itk_option(-plotforeground) -tags "limits text vmax"
984	$c create text [expr {$w/2}] $ly -anchor s \
985	-fill $itk_option(-plotforeground) -tags "title text"
986	$c lower colorbar
987	$c bind colorbar <ButtonRelease-1> [itcl::code $this AddIsoMarker %x %y]
988	}
989
990	if {$tag == "" \|\| ![info exists _dataset2style($tag)]} {
991	return
992	}
993	# Display the markers used by the current transfer function.
994	set tf $_dataset2style($tag)
995	foreach {min max} [limits $tf] break
996	$c itemconfigure vmin -text [format %g $min]
997	$c coords vmin $lx $ly
998
999	$c itemconfigure vmax -text [format %g $max]
1000	$c coords vmax [expr {$w-$lx}] $ly
1001
1002	if { $_first == "" } {
1003	return
1004	}
1005	set title [$_first hints label]
1006	set units [$_first hints units]
1007	if { $units != "" } {
1008	set title "$title ($units)"
1009	}
1010	$c itemconfigure title -text $title
1011	$c coords title [expr {$w/2}] $ly
1012
1013	if { [info exists _isomarkers($tf)] } {
1014	foreach m $_isomarkers($tf) {
1015	$m visible yes
1016	}
1017	}
1018	}
1019
1020	#
1021	# ReceiveLegend --
1022	#
1023	# The procedure is the response from the render server to each "legend"
1024	# command. The server sends back a "legend" command invoked our
1025	# the slave interpreter. The purpose is to collect data of the image
1026	# representing the legend in the canvas. In addition, the
1027	# active transfer function is displayed.
1028	#
1029	itcl::body Rappture::FlowvisViewer::ReceiveLegend { tag vmin vmax size } {
1030	if { ![isconnected] } {
1031	return
1032	}
1033	set bytes [ReceiveBytes $size]
1034	$_image(legend) configure -data $bytes
1035	ReceiveEcho <<line "<read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
1036
1037	DrawLegend $tag
1038	}
1039
1040	#
1041	# ReceiveData --
1042	#
1043	# The procedure is the response from the render server to each "data
1044	# follows" command. The server sends back a "data" command invoked our
1045	# the slave interpreter. The purpose was to collect the min/max of the
1046	# volume sent to the render server. This is no longer needed since we
1047	# already know the limits.
1048	#
1049	itcl::body Rappture::FlowvisViewer::ReceiveData { args } {
1050	if { ![isconnected] } {
1051	return
1052	}
1053
1054	# Arguments from server are name value pairs. Stuff them in an array.
1055	array set info $args
1056
1057	set tag $info(tag)
1058	set _limits($tag) [list $info(min) $info(max)]
1059	}
1060
1061	# ----------------------------------------------------------------------
1062	# USAGE: Rebuild
1063	#
1064	# Called automatically whenever something changes that affects the
1065	# data in the widget. Clears any existing data and rebuilds the
1066	# widget to display new data.
1067	# ----------------------------------------------------------------------
1068	itcl::body Rappture::FlowvisViewer::Rebuild {} {
1069	set w [winfo width $itk_component(view)]
1070	set h [winfo height $itk_component(view)]
1071	if { $w < 2 \|\| $h < 2 } {
1072	update
1073	$_dispatcher event -idle !rebuild
1074	return
1075	}
1076
1077	# Turn on buffering of commands to the server. We don't want to
1078	# be preempted by a server disconnect/reconnect (which automatically
1079	# generates a new call to Rebuild).
1080	StartBufferingCommands
1081
1082	# Hide all the isomarkers. Can't remove them. Have to remember the
1083	# settings since the user may have created/deleted/moved markers.
1084
1085	foreach tf [array names _isomarkers] {
1086	foreach m $_isomarkers($tf) {
1087	$m visible no
1088	}
1089	}
1090
1091	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
1092	set _width $w
1093	set _height $h
1094	$_arcball resize $w $h
1095	DoResize
1096	}
1097
1098	set _first ""
1099	foreach dataobj [get -objects] {
1100	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1101	set _first $dataobj
1102	}
1103	foreach cname [$dataobj components] {
1104	set tag $dataobj-$cname
1105	if { ![info exists _datasets($tag)] } {
1106	if { [$dataobj type] == "dx" } {
1107	set data [$dataobj blob $cname]
1108	} else {
1109	set data [$dataobj vtkdata $cname]
1110	}
1111	set nbytes [string length $data]
1112	if { $_reportClientInfo } {
1113	set info {}
1114	lappend info "tool_id" [$dataobj hints toolid]
1115	lappend info "tool_name" [$dataobj hints toolname]
1116	lappend info "tool_title" [$dataobj hints tooltitle]
1117	lappend info "tool_command" [$dataobj hints toolcommand]
1118	lappend info "tool_revision" [$dataobj hints toolrevision]
1119	lappend info "dataset_label" [$dataobj hints label]
1120	lappend info "dataset_size" $nbytes
1121	lappend info "dataset_tag" $tag
1122	SendCmd "clientinfo [list $info]"
1123	}
1124	set numComponents [$dataobj numComponents $cname]
1125	# I have a field. Is a vector field or a volume field?
1126	if { $numComponents == 1 } {
1127	SendCmd "volume data follows $nbytes $tag"
1128	} else {
1129	if {[SendFlowCmd $dataobj $cname $nbytes $numComponents] < 0} {
1130	continue
1131	}
1132	}
1133	SendData $data
1134	set _datasets($tag) 1
1135	NameTransferFunction $dataobj $cname
1136	}
1137	}
1138	}
1139
1140	# Turn off cutplanes for all volumes
1141	foreach axis {x y z} {
1142	SendCmd "cutplane state 0 $axis"
1143	}
1144
1145	InitSettings -volume -outlinevisible -cutplanesvisible \
1146	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1147	-xcutplaneposition -ycutplaneposition -zcutplaneposition
1148
1149	if { $_reset } {
1150	InitSettings -axesvisible -gridvisible \
1151	-opacity -light2side -isosurfaceshading \
1152	-ambient -diffuse -specularlevel -specularexponent
1153
1154	#
1155	# Reset the camera and other view parameters
1156	#
1157	if {"" != $_first} {
1158	set axis [$_first hints updir]
1159	if { "" != $axis } {
1160	SendCmd "up $axis"
1161	}
1162	set location [$_first hints camera]
1163	if { $location != "" } {
1164	array set _view $location
1165	}
1166	}
1167	set _settings(-qw) $_view(-qw)
1168	set _settings(-qx) $_view(-qx)
1169	set _settings(-qy) $_view(-qy)
1170	set _settings(-qz) $_view(-qz)
1171	set _settings(-xpan) $_view(-xpan)
1172	set _settings(-ypan) $_view(-ypan)
1173	set _settings(-zoom) $_view(-zoom)
1174
1175	set q [ViewToQuaternion]
1176	$_arcball quaternion $q
1177	SendCmd "camera orient $q"
1178	SendCmd "camera reset"
1179	PanCamera
1180	SendCmd "camera zoom $_view(-zoom)"
1181	set _reset 0
1182	}
1183
1184	if {"" != $_first} {
1185	set cname [lindex [$_first components] 0]
1186	set _activeTf [lindex $_dataset2style($_first-$cname) 0]
1187	# Make sure we display the proper transfer function in the legend.
1188	updateTransferFunctions
1189	}
1190
1191	# Actually write the commands to the server socket. If it fails, we don't
1192	# care. We're finished here.
1193	blt::busy hold $itk_component(hull)
1194	StopBufferingCommands
1195	blt::busy release $itk_component(hull)
1196	}
1197
1198	# ----------------------------------------------------------------------
1199	# USAGE: CurrentDatasets ?-cutplanes?
1200	#
1201	# Returns a list of volume server IDs for the current volume being
1202	# displayed. This is normally a single ID, but it might be a list
1203	# of IDs if the current data object has multiple components.
1204	# ----------------------------------------------------------------------
1205	itcl::body Rappture::FlowvisViewer::CurrentDatasets {{what -all}} {
1206	set rlist ""
1207	if { $_first == "" } {
1208	return
1209	}
1210	foreach cname [$_first components] {
1211	set tag $_first-$cname
1212	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1213	array set style {
1214	-cutplanes 1
1215	}
1216	array set style [lindex [$_first components -style $cname] 0]
1217	if { $what != "-cutplanes" \|\| $style(-cutplanes) } {
1218	lappend rlist $tag
1219	}
1220	}
1221	}
1222	return $rlist
1223	}
1224
1225	# ----------------------------------------------------------------------
1226	# USAGE: Zoom in
1227	# USAGE: Zoom out
1228	# USAGE: Zoom reset
1229	#
1230	# Called automatically when the user clicks on one of the zoom
1231	# controls for this widget. Changes the zoom for the current view.
1232	# ----------------------------------------------------------------------
1233	itcl::body Rappture::FlowvisViewer::Zoom {option} {
1234	switch -- $option {
1235	"in" {
1236	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1237	set _settings(-zoom) $_view(-zoom)
1238	SendCmd "camera zoom $_view(-zoom)"
1239	}
1240	"out" {
1241	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1242	set _settings(-zoom) $_view(-zoom)
1243	SendCmd "camera zoom $_view(-zoom)"
1244	}
1245	"reset" {
1246	array set _view {
1247	-qw 0.853553
1248	-qx -0.353553
1249	-qy 0.353553
1250	-qz 0.146447
1251	-xpan 0
1252	-ypan 0
1253	-zoom 1.0
1254	}
1255	if { $_first != "" } {
1256	set location [$_first hints camera]
1257	if { $location != "" } {
1258	array set _view $location
1259	}
1260	}
1261	set q [ViewToQuaternion]
1262	$_arcball quaternion $q
1263	SendCmd "camera orient $q"
1264	SendCmd "camera reset"
1265	set _settings(-qw) $_view(-qw)
1266	set _settings(-qx) $_view(-qx)
1267	set _settings(-qy) $_view(-qy)
1268	set _settings(-qz) $_view(-qz)
1269	set _settings(-xpan) $_view(-xpan)
1270	set _settings(-ypan) $_view(-ypan)
1271	set _settings(-zoom) $_view(-zoom)
1272	}
1273	}
1274	}
1275
1276	itcl::body Rappture::FlowvisViewer::PanCamera {} {
1277	set x $_view(-xpan)
1278	set y $_view(-ypan)
1279	SendCmd "camera pan $x $y"
1280	}
1281
1282	# ----------------------------------------------------------------------
1283	# USAGE: Rotate click <x> <y>
1284	# USAGE: Rotate drag <x> <y>
1285	# USAGE: Rotate release <x> <y>
1286	#
1287	# Called automatically when the user clicks/drags/releases in the
1288	# plot area. Moves the plot according to the user's actions.
1289	# ----------------------------------------------------------------------
1290	itcl::body Rappture::FlowvisViewer::Rotate {option x y} {
1291	switch -- $option {
1292	click {
1293	$itk_component(view) configure -cursor fleur
1294	set _click(x) $x
1295	set _click(y) $y
1296	}
1297	drag {
1298	if {[array size _click] == 0} {
1299	Rotate click $x $y
1300	} else {
1301	set w [winfo width $itk_component(view)]
1302	set h [winfo height $itk_component(view)]
1303	if {$w <= 0 \|\| $h <= 0} {
1304	return
1305	}
1306
1307	if {[catch {
1308	# this fails sometimes for no apparent reason
1309	set dx [expr {double($x-$_click(x))/$w}]
1310	set dy [expr {double($y-$_click(y))/$h}]
1311	}]} {
1312	return
1313	}
1314
1315	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1316	QuaternionToView $q
1317	set _settings(-qw) $_view(-qw)
1318	set _settings(-qx) $_view(-qx)
1319	set _settings(-qy) $_view(-qy)
1320	set _settings(-qz) $_view(-qz)
1321	SendCmd "camera orient $q"
1322
1323	set _click(x) $x
1324	set _click(y) $y
1325	}
1326	}
1327	release {
1328	Rotate drag $x $y
1329	$itk_component(view) configure -cursor ""
1330	catch {unset _click}
1331	}
1332	default {
1333	error "bad option \"$option\": should be click, drag, release"
1334	}
1335	}
1336	}
1337
1338	# ----------------------------------------------------------------------
1339	# USAGE: $this Pan click x y
1340	# $this Pan drag x y
1341	# $this Pan release x y
1342	#
1343	# Called automatically when the user clicks on one of the zoom
1344	# controls for this widget. Changes the zoom for the current view.
1345	# ----------------------------------------------------------------------
1346	itcl::body Rappture::FlowvisViewer::Pan {option x y} {
1347	# Experimental stuff
1348	set w [winfo width $itk_component(view)]
1349	set h [winfo height $itk_component(view)]
1350	if { $option == "set" } {
1351	set x [expr $x / double($w)]
1352	set y [expr $y / double($h)]
1353	set _view(-xpan) [expr $_view(-xpan) + $x]
1354	set _view(-ypan) [expr $_view(-ypan) + $y]
1355	PanCamera
1356	set _settings(-xpan) $_view(-xpan)
1357	set _settings(-ypan) $_view(-ypan)
1358	return
1359	}
1360	if { $option == "click" } {
1361	set _click(x) $x
1362	set _click(y) $y
1363	$itk_component(view) configure -cursor hand1
1364	}
1365	if { $option == "drag" \|\| $option == "release" } {
1366	set dx [expr ($_click(x) - $x)/double($w)]
1367	set dy [expr ($_click(y) - $y)/double($h)]
1368	set _click(x) $x
1369	set _click(y) $y
1370	set _view(-xpan) [expr $_view(-xpan) - $dx]
1371	set _view(-ypan) [expr $_view(-ypan) - $dy]
1372	PanCamera
1373	set _settings(-xpan) $_view(-xpan)
1374	set _settings(-ypan) $_view(-ypan)
1375	}
1376	if { $option == "release" } {
1377	$itk_component(view) configure -cursor ""
1378	}
1379	}
1380
1381	# ----------------------------------------------------------------------
1382	# USAGE: InitSettings <what> ?<value>?
1383	#
1384	# Used internally to update rendering settings whenever parameters
1385	# change in the popup settings panel. Sends the new settings off
1386	# to the back end.
1387	# ----------------------------------------------------------------------
1388	itcl::body Rappture::FlowvisViewer::InitSettings { args } {
1389	foreach arg $args {
1390	AdjustSetting $arg
1391	}
1392	}
1393
1394	# ----------------------------------------------------------------------
1395	# USAGE: AdjustSetting <what> ?<value>?
1396	#
1397	# Used internally to update rendering settings whenever parameters
1398	# change in the popup settings panel. Sends the new settings off
1399	# to the back end.
1400	# ----------------------------------------------------------------------
1401	itcl::body Rappture::FlowvisViewer::AdjustSetting {what {value ""}} {
1402	if {![isconnected]} {
1403	return
1404	}
1405	switch -- $what {
1406	"-ambient" {
1407	if { $_first != "" } {
1408	set comp [lindex [$_first components] 0]
1409	set tag $_first-$comp
1410	set val $_settings($what)
1411	set val [expr {0.01*$val}]
1412	SendCmd "$tag configure -ambient $val"
1413	}
1414	}
1415	"-axesvisible" {
1416	SendCmd "axis visible $_settings($what)"
1417	}
1418	"-background" {
1419	set bgcolor [$itk_component(background) value]
1420	array set fgcolors {
1421	"black" "white"
1422	"white" "black"
1423	"grey" "black"
1424	}
1425	configure -plotbackground $bgcolor \
1426	-plotforeground $fgcolors($bgcolor)
1427	if { $_first != "" } {
1428	set comp [lindex [$_first components] 0]
1429	set tag $_first-$comp
1430	DrawLegend $tag
1431	}
1432	}
1433	"-colormap" {
1434	set color [$itk_component(colormap) value]
1435	set _settings($what) $color
1436	#ResetColormap $color
1437	}
1438	"-cutplanesvisible" {
1439	set bool $_settings($what)
1440	set datasets [CurrentDatasets -cutplanes]
1441	set tag [lindex $datasets 0]
1442	SendCmd "cutplane visible $bool $tag"
1443	}
1444	"-diffuse" {
1445	if { $_first != "" } {
1446	set comp [lindex [$_first components] 0]
1447	set tag $_first-$comp
1448	set val $_settings($what)
1449	set val [expr {0.01*$val}]
1450	SendCmd "$tag configure -diffuse $val"
1451	}
1452	}
1453	"-gridvisible" {
1454	SendCmd "grid visible $_settings($what)"
1455	}
1456	"-isosurfaceshading" {
1457	if { $_first != "" } {
1458	set comp [lindex [$_first components] 0]
1459	set tag $_first-$comp
1460	set val $_settings($what)
1461	# This flag isn't implemented in the server
1462	#SendCmd "$tag configure -isosurface $val"
1463	}
1464	}
1465	"-legendvisible" {
1466	if { $_settings($what) } {
1467	blt::table $itk_component(plotarea) \
1468	0,0 $itk_component(view) -fill both \
1469	1,0 $itk_component(legend) -fill x
1470	blt::table configure $itk_component(plotarea) r1 -resize none
1471	} else {
1472	blt::table forget $itk_component(legend)
1473	}
1474	}
1475	"-light2side" {
1476	if { $_first != "" } {
1477	set comp [lindex [$_first components] 0]
1478	set tag $_first-$comp
1479	set val $_settings($what)
1480	SendCmd "$tag configure -light2side $val"
1481	}
1482	}
1483	"-opacity" {
1484	if { $_first != "" } {
1485	set comp [lindex [$_first components] 0]
1486	set tag $_first-$comp
1487	set opacity [expr { 0.01 * double($_settings($what)) }]
1488	SendCmd "$tag configure -opacity $opacity"
1489	}
1490	}
1491	"-outlinevisible" {
1492	if { $_first != "" } {
1493	set comp [lindex [$_first components] 0]
1494	set tag $_first-$comp
1495	SendCmd "$tag configure -outline $_settings($what)"
1496	}
1497	}
1498	"-specularlevel" {
1499	if { $_first != "" } {
1500	set comp [lindex [$_first components] 0]
1501	set tag $_first-$comp
1502	set val $_settings($what)
1503	set val [expr {0.01*$val}]
1504	SendCmd "$tag configure -specularLevel $val"
1505	}
1506	}
1507	"-specularexponent" {
1508	if { $_first != "" } {
1509	set comp [lindex [$_first components] 0]
1510	set tag $_first-$comp
1511	set val $_settings($what)
1512	SendCmd "$tag configure -specularExp $val"
1513	}
1514	}
1515	"-thickness" {
1516	if { $_first != "" && $_activeTf != "" } {
1517	set val $_settings($what)
1518	# Scale values between 0.00001 and 0.01000
1519	set sval [expr {0.0001*double($val)}]
1520	set tf $_activeTf
1521	set _settings($tf${what}) $sval
1522	updateTransferFunctions
1523	}
1524	}
1525	"-volume" {
1526	if { $_first != "" } {
1527	set comp [lindex [$_first components] 0]
1528	set tag $_first-$comp
1529	SendCmd "$tag configure -volume $_settings($what)"
1530	}
1531	}
1532	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1533	set axis [string range $what 1 1]
1534	set pos [expr $_settings($what) * 0.01]
1535	# We only set cutplanes on the first dataset.
1536	set datasets [CurrentDatasets -cutplanes]
1537	set tag [lindex $datasets 0]
1538	SendCmd "cutplane position $pos $axis $tag"
1539	}
1540	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1541	set axis [string range $what 1 1]
1542	set bool $_settings($what)
1543	# We only set cutplanes on the first dataset.
1544	set datasets [CurrentDatasets -cutplanes]
1545	set tag [lindex $datasets 0]
1546	SendCmd "cutplane state $bool $axis $tag"
1547	if { $bool } {
1548	$itk_component(${axis}CutScale) configure -state normal \
1549	-troughcolor white
1550	} else {
1551	$itk_component(${axis}CutScale) configure -state disabled \
1552	-troughcolor grey82
1553	}
1554	}
1555	default {
1556	error "don't know how to fix $what"
1557	}
1558	}
1559	}
1560
1561	# ----------------------------------------------------------------------
1562	# USAGE: FixLegend
1563	#
1564	# Used internally to update the legend area whenever it changes size
1565	# or when the field changes. Asks the server to send a new legend
1566	# for the current field.
1567	# ----------------------------------------------------------------------
1568	itcl::body Rappture::FlowvisViewer::FixLegend {} {
1569	set _resizeLegendPending 0
1570	set lineht [font metrics $itk_option(-font) -linespace]
1571	set w [expr {$_width-20}]
1572	set h [expr {[winfo height $itk_component(legend)]-20-$lineht}]
1573
1574	if { $_first == "" } {
1575	return
1576	}
1577	set comp [lindex [$_first components] 0]
1578	set tag $_first-$comp
1579	#set _activeTf [lindex $_dataset2style($tag) 0]
1580	if {$w > 0 && $h > 0 && "" != $_activeTf} {
1581	#SendCmd "legend $_activeTf $w $h"
1582	SendCmd "$tag legend $w $h"
1583	}
1584	}
1585
1586	#
1587	# NameTransferFunction --
1588	#
1589	# Creates a transfer function name based on the <style> settings in the
1590	# library run.xml file. This placeholder will be used later to create
1591	# and send the actual transfer function once the data info has been sent
1592	# to us by the render server. [We won't know the volume limits until the
1593	# server parses the 3D data and sends back the limits via ReceiveData.]
1594	#
1595	itcl::body Rappture::FlowvisViewer::NameTransferFunction { dataobj cname } {
1596	array set style {
1597	-color BCGYR
1598	-levels 6
1599	-opacity 0.5
1600	}
1601	array set style [lindex [$dataobj components -style $cname] 0]
1602	# Some tools erroneously set -opacity to 1 in style, so
1603	# override the requested opacity for now
1604	set style(-opacity) 0.5
1605	set _settings(-opacity) [expr $style(-opacity) * 100]
1606	set _dataset2style($dataobj-$cname) $cname
1607	lappend _style2datasets($cname) $dataobj $cname
1608	return $cname
1609	}
1610
1611	#
1612	# ComputeTransferFunction --
1613	#
1614	# Computes and sends the transfer function to the render server. It's
1615	# assumed that the volume data limits are known and that the global
1616	# transfer-functions slider values have been set up. Both parts are
1617	# needed to compute the relative value (location) of the marker, and
1618	# the alpha map of the transfer function.
1619	#
1620	itcl::body Rappture::FlowvisViewer::ComputeTransferFunction { tf } {
1621	array set style {
1622	-color BCGYR
1623	-levels 6
1624	-opacity 0.5
1625	}
1626	set dataobj ""; set cname ""
1627	foreach {dataobj cname} $_style2datasets($tf) break
1628	if { $dataobj == "" } {
1629	return 0
1630	}
1631	array set style [lindex [$dataobj components -style $cname] 0]
1632	# Some tools erroneously set -opacity to 1 in style, so
1633	# override the requested opacity for now
1634	set style(-opacity) 0.5
1635
1636	# We have to parse the style attributes for a volume using this
1637	# transfer-function once. This sets up the initial isomarkers for the
1638	# transfer function. The user may add/delete markers, so we have to
1639	# maintain a list of markers for each transfer-function. We use the one
1640	# of the volumes (the first in the list) using the transfer-function as a
1641	# reference.
1642
1643	if { ![info exists _isomarkers($tf)] } {
1644	# Have to defer creation of isomarkers until we have data limits
1645	if { [info exists style(-markers)] &&
1646	[llength $style(-markers)] > 0 } {
1647	ParseMarkersOption $tf $style(-markers)
1648	} else {
1649	ParseLevelsOption $tf $style(-levels)
1650	}
1651	}
1652	if { [info exists style(-nonuniformcolors)] } {
1653	foreach { value color } $style(-nonuniformcolors) {
1654	append cmap "$value [Color2RGB $color] "
1655	}
1656	} else {
1657	set cmap [ColorsToColormap $style(-color)]
1658	}
1659
1660	if { ![info exists _settings(-opacity)] } {
1661	set _settings(-opacity) [expr $style(-opacity) * 100]
1662	}
1663
1664	# Transfer function should be normalized with [0,1] range
1665	# The volume shading opacity setting is used to scale opacity
1666	# in the volume shader.
1667	set max 1.0
1668
1669	set isovalues {}
1670	foreach m $_isomarkers($tf) {
1671	lappend isovalues [$m relval]
1672	}
1673	# Sort the isovalues
1674	set isovalues [lsort -real $isovalues]
1675
1676	set tag $tf
1677	if { ![info exists _settings($tag-thickness)]} {
1678	set _settings($tag-thickness) 0.005
1679	}
1680	set delta $_settings($tag-thickness)
1681
1682	set first [lindex $isovalues 0]
1683	set last [lindex $isovalues end]
1684	set amap ""
1685	if { $first == "" \|\| $first != 0.0 } {
1686	lappend amap 0.0 0.0
1687	}
1688	foreach x $isovalues {
1689	set x1 [expr {$x-$delta-0.00001}]
1690	set x2 [expr {$x-$delta}]
1691	set x3 [expr {$x+$delta}]
1692	set x4 [expr {$x+$delta+0.00001}]
1693	if { $x1 < 0.0 } {
1694	set x1 0.0
1695	} elseif { $x1 > 1.0 } {
1696	set x1 1.0
1697	}
1698	if { $x2 < 0.0 } {
1699	set x2 0.0
1700	} elseif { $x2 > 1.0 } {
1701	set x2 1.0
1702	}
1703	if { $x3 < 0.0 } {
1704	set x3 0.0
1705	} elseif { $x3 > 1.0 } {
1706	set x3 1.0
1707	}
1708	if { $x4 < 0.0 } {
1709	set x4 0.0
1710	} elseif { $x4 > 1.0 } {
1711	set x4 1.0
1712	}
1713	# add spikes in the middle
1714	lappend amap $x1 0.0
1715	lappend amap $x2 $max
1716	lappend amap $x3 $max
1717	lappend amap $x4 0.0
1718	}
1719	if { $last == "" \|\| $last != 1.0 } {
1720	lappend amap 1.0 0.0
1721	}
1722	SendCmd "transfunc define $tf { $cmap } { $amap }"
1723	return [SendCmd "$dataobj-$cname configure -transferfunction $tf"]
1724	}
1725
1726	# ----------------------------------------------------------------------
1727	# CONFIGURATION OPTION: -plotbackground
1728	# ----------------------------------------------------------------------
1729	itcl::configbody Rappture::FlowvisViewer::plotbackground {
1730	if { [isconnected] } {
1731	set color $itk_option(-plotbackground)
1732	set rgb [Color2RGB $color]
1733	SendCmd "screen bgcolor $rgb"
1734	$itk_component(legend) configure -background $color
1735	}
1736	}
1737
1738	# ----------------------------------------------------------------------
1739	# CONFIGURATION OPTION: -plotforeground
1740	# ----------------------------------------------------------------------
1741	itcl::configbody Rappture::FlowvisViewer::plotforeground {
1742	if { [isconnected] } {
1743	set color $itk_option(-plotforeground)
1744	set rgb [Color2RGB $color]
1745	SendCmd "volume outline color $rgb"
1746	SendCmd "grid axiscolor $rgb"
1747	SendCmd "grid linecolor $rgb"
1748	$itk_component(legend) itemconfigure text -fill $color
1749	}
1750	}
1751
1752	# ----------------------------------------------------------------------
1753	# CONFIGURATION OPTION: -plotoutline
1754	# ----------------------------------------------------------------------
1755	itcl::configbody Rappture::FlowvisViewer::plotoutline {
1756	# Must check if we are connected because this routine is called from the
1757	# class body when the -plotoutline itk_option is defined. At that point
1758	# the FlowvisViewer class constructor hasn't been called, so we can't
1759	# start sending commands to visualization server.
1760	if { [isconnected] } {
1761	if {"" == $itk_option(-plotoutline)} {
1762	SendCmd "volume outline state off"
1763	} else {
1764	SendCmd "volume outline state on"
1765	SendCmd "volume outline color [Color2RGB $itk_option(-plotoutline)]"
1766	}
1767	}
1768	}
1769
1770	#
1771	# The -levels option takes a single value that represents the number
1772	# of evenly distributed markers based on the current data range. Each
1773	# marker is a relative value from 0.0 to 1.0.
1774	#
1775	itcl::body Rappture::FlowvisViewer::ParseLevelsOption { tf levels } {
1776	set c $itk_component(legend)
1777	regsub -all "," $levels " " levels
1778	if {[string is int $levels]} {
1779	for {set i 1} { $i <= $levels } {incr i} {
1780	set x [expr {double($i)/($levels+1)}]
1781	set m [Rappture::IsoMarker \#auto $c $this $tf]
1782	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1783	$m relval $x
1784	lappend _isomarkers($tf) $m
1785	}
1786	} else {
1787	foreach x $levels {
1788	set m [Rappture::IsoMarker \#auto $c $this $tf]
1789	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1790	$m relval $x
1791	lappend _isomarkers($tf) $m
1792	}
1793	}
1794	}
1795
1796	#
1797	# The -markers option takes a list of zero or more values (the values
1798	# may be separated either by spaces or commas) that have the following
1799	# format:
1800	#
1801	# N% Percent of current total data range. Converted to
1802	# to a relative value between 0.0 and 1.0.
1803	# N Absolute value of marker. If the marker is outside of
1804	# the current range, it will be displayed on the outer
1805	# edge of the legends, but it range it represents will
1806	# not be seen.
1807	#
1808	itcl::body Rappture::FlowvisViewer::ParseMarkersOption { tf markers } {
1809	set c $itk_component(legend)
1810	regsub -all "," $markers " " markers
1811	foreach marker $markers {
1812	set n [scan $marker "%g%s" value suffix]
1813	if { $n == 2 && $suffix == "%" } {
1814	# ${n}% : Set relative value.
1815	set value [expr {$value * 0.01}]
1816	set m [Rappture::IsoMarker \#auto $c $this $tf]
1817	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1818	$m relval $value
1819	lappend _isomarkers($tf) $m
1820	} else {
1821	# ${n} : Set absolute value.
1822	set m [Rappture::IsoMarker \#auto $c $this $tf]
1823	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1824	$m absval $value
1825	lappend _isomarkers($tf) $m
1826	}
1827	}
1828	}
1829
1830	itcl::body Rappture::FlowvisViewer::updateTransferFunctions {} {
1831	$_dispatcher event -after 100 !send_transfunc
1832	}
1833
1834	itcl::body Rappture::FlowvisViewer::AddIsoMarker { x y } {
1835	if { $_activeTf == "" } {
1836	error "active transfer function isn't set"
1837	}
1838	set tf $_activeTf
1839	set c $itk_component(legend)
1840	set m [Rappture::IsoMarker \#auto $c $this $tf]
1841	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1842	set w [winfo width $c]
1843	$m relval [expr {double($x-10)/($w-20)}]
1844	lappend _isomarkers($tf) $m
1845	updateTransferFunctions
1846	return 1
1847	}
1848
1849	itcl::body Rappture::FlowvisViewer::removeDuplicateMarker { marker x } {
1850	set tf [$marker transferfunc]
1851	set bool 0
1852	if { [info exists _isomarkers($tf)] } {
1853	set list {}
1854	set marker [namespace tail $marker]
1855	foreach m $_isomarkers($tf) {
1856	set sx [$m screenpos]
1857	if { $m != $marker } {
1858	if { $x >= ($sx-3) && $x <= ($sx+3) } {
1859	$marker relval [$m relval]
1860	itcl::delete object $m
1861	bell
1862	set bool 1
1863	continue
1864	}
1865	}
1866	lappend list $m
1867	}
1868	set _isomarkers($tf) $list
1869	updateTransferFunctions
1870	}
1871	return $bool
1872	}
1873
1874	itcl::body Rappture::FlowvisViewer::overMarker { marker x } {
1875	set tf [$marker transferfunc]
1876	if { [info exists _isomarkers($tf)] } {
1877	set marker [namespace tail $marker]
1878	foreach m $_isomarkers($tf) {
1879	set sx [$m screenpos]
1880	if { $m != $marker } {
1881	set bool [expr { $x >= ($sx-3) && $x <= ($sx+3) }]
1882	$m activate $bool
1883	}
1884	}
1885	}
1886	return ""
1887	}
1888
1889	itcl::body Rappture::FlowvisViewer::limits { cname } {
1890	if { ![info exists _limits($cname)] } {
1891	puts stderr "no limits for cname=($cname)"
1892	return [list 0.0 1.0]
1893	}
1894	return $_limits($cname)
1895	}
1896
1897	itcl::body Rappture::FlowvisViewer::BuildViewTab {} {
1898	set fg [option get $itk_component(hull) font Font]
1899	#set bfg [option get $itk_component(hull) boldFont Font]
1900
1901	set inner [$itk_component(main) insert end \
1902	-title "View Settings" \
1903	-icon [Rappture::icon wrench]]
1904	$inner configure -borderwidth 4
1905
1906	# General options
1907	checkbutton $inner.axes \
1908	-text "Axes" \
1909	-variable [itcl::scope _settings(-axesvisible)] \
1910	-command [itcl::code $this AdjustSetting -axesvisible] \
1911	-font "Arial 9"
1912
1913	checkbutton $inner.grid \
1914	-text "Grid" \
1915	-variable [itcl::scope _settings(-gridvisible)] \
1916	-command [itcl::code $this AdjustSetting -gridvisible] \
1917	-font "Arial 9"
1918
1919	checkbutton $inner.legend \
1920	-text "Legend" \
1921	-variable [itcl::scope _settings(-legendvisible)] \
1922	-command [itcl::code $this AdjustSetting -legendvisible] \
1923	-font "Arial 9"
1924
1925	label $inner.background_l -text "Background" -font "Arial 9"
1926	itk_component add background {
1927	Rappture::Combobox $inner.background -width 10 -editable no
1928	}
1929	$inner.background choices insert end \
1930	"black" "black" \
1931	"white" "white" \
1932	"grey" "grey"
1933
1934	$itk_component(background) value $_settings(-background)
1935	bind $inner.background <<Value>> \
1936	[itcl::code $this AdjustSetting -background]
1937
1938	# Dataset options
1939	label $inner.flow_l -text "Flow" -font "Arial 9 bold"
1940
1941	checkbutton $inner.outline \
1942	-text "Outline" \
1943	-variable [itcl::scope _settings(-outlinevisible)] \
1944	-command [itcl::code $this AdjustSetting -outlinevisible] \
1945	-font "Arial 9"
1946
1947	checkbutton $inner.volume \
1948	-text "Volume" \
1949	-variable [itcl::scope _settings(-volume)] \
1950	-command [itcl::code $this AdjustSetting -volume] \
1951	-font "Arial 9"
1952
1953	frame $inner.frame
1954
1955	blt::table $inner \
1956	0,0 $inner.axes -cspan 2 -anchor w \
1957	1,0 $inner.grid -cspan 2 -anchor w \
1958	2,0 $inner.legend -cspan 2 -anchor w \
1959	3,0 $inner.background_l -anchor e -pady 2 \
1960	3,1 $inner.background -fill x \
1961	4,0 $inner.flow_l -anchor w \
1962	5,0 $inner.outline -cspan 2 -anchor w \
1963	6,0 $inner.volume -cspan 2 -anchor w \
1964
1965	bind $inner <Map> [itcl::code $this GetFlowInfo $inner]
1966
1967	blt::table configure $inner c* r* -resize none
1968	blt::table configure $inner c2 r7 -resize expand
1969	}
1970
1971	itcl::body Rappture::FlowvisViewer::BuildVolumeTab {} {
1972	set inner [$itk_component(main) insert end \
1973	-title "Volume Settings" \
1974	-icon [Rappture::icon volume-on]]
1975	$inner configure -borderwidth 4
1976
1977	set fg [option get $itk_component(hull) font Font]
1978	#set bfg [option get $itk_component(hull) boldFont Font]
1979
1980	checkbutton $inner.vol -text "Show volume" -font $fg \
1981	-text "Volume" \
1982	-variable [itcl::scope _settings(-volume)] \
1983	-command [itcl::code $this AdjustSetting -volume] \
1984	-font "Arial 9"
1985
1986	label $inner.lighting_l \
1987	-text "Lighting / Material Properties" \
1988	-font "Arial 9 bold"
1989
1990	checkbutton $inner.isosurface -text "Isosurface shading" -font $fg \
1991	-variable [itcl::scope _settings(-isosurfaceshading)] \
1992	-command [itcl::code $this AdjustSetting -isosurfaceshading]
1993
1994	checkbutton $inner.light2side -text "Two-sided lighting" -font $fg \
1995	-variable [itcl::scope _settings(-light2side)] \
1996	-command [itcl::code $this AdjustSetting -light2side]
1997
1998	label $inner.ambient_l -text "Ambient" -font $fg
1999	::scale $inner.ambient -from 0 -to 100 -orient horizontal \
2000	-variable [itcl::scope _settings(-ambient)] \
2001	-width 10 \
2002	-showvalue off -command [itcl::code $this AdjustSetting -ambient]
2003
2004	label $inner.diffuse_l -text "Diffuse" -font $fg
2005	::scale $inner.diffuse -from 0 -to 100 -orient horizontal \
2006	-variable [itcl::scope _settings(-diffuse)] \
2007	-width 10 \
2008	-showvalue off -command [itcl::code $this AdjustSetting -diffuse]
2009
2010	label $inner.specularLevel_l -text "Specular" -font $fg
2011	::scale $inner.specularLevel -from 0 -to 100 -orient horizontal \
2012	-variable [itcl::scope _settings(-specularlevel)] \
2013	-width 10 \
2014	-showvalue off -command [itcl::code $this AdjustSetting -specularlevel]
2015
2016	label $inner.specularExponent_l -text "Shininess" -font $fg
2017	::scale $inner.specularExponent -from 10 -to 128 -orient horizontal \
2018	-variable [itcl::scope _settings(-specularexponent)] \
2019	-width 10 \
2020	-showvalue off -command [itcl::code $this AdjustSetting -specularexponent]
2021
2022	# Opacity
2023	label $inner.opacity_l -text "Opacity" -font $fg
2024	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2025	-variable [itcl::scope _settings(-opacity)] \
2026	-width 10 \
2027	-showvalue off -command [itcl::code $this AdjustSetting -opacity]
2028
2029	label $inner.transferfunction_l \
2030	-text "Transfer Function" -font "Arial 9 bold"
2031
2032	# Tooth thickness
2033	label $inner.thin -text "Thin" -font $fg
2034	::scale $inner.thickness -from 0 -to 1000 -orient horizontal \
2035	-variable [itcl::scope _settings(-thickness)] \
2036	-width 10 \
2037	-showvalue off -command [itcl::code $this AdjustSetting -thickness]
2038	label $inner.thick -text "Thick" -font $fg
2039
2040	# Colormap
2041	label $inner.colormap_l -text "Colormap" -font $fg
2042	itk_component add colormap {
2043	Rappture::Combobox $inner.colormap -width 10 -editable no
2044	}
2045	$inner.colormap choices insert end [GetColormapList -includeNone]
2046	bind $inner.colormap <<Value>> \
2047	[itcl::code $this AdjustSetting -colormap]
2048	$itk_component(colormap) value "BCGYR"
2049	set _settings(-colormap) "BCGYR"
2050
2051	blt::table $inner \
2052	0,0 $inner.vol -cspan 4 -anchor w -pady 2 \
2053	1,0 $inner.lighting_l -cspan 4 -anchor w -pady {10 2} \
2054	2,0 $inner.light2side -cspan 4 -anchor w -pady 2 \
2055	3,0 $inner.ambient_l -anchor e -pady 2 \
2056	3,1 $inner.ambient -cspan 3 -pady 2 -fill x \
2057	4,0 $inner.diffuse_l -anchor e -pady 2 \
2058	4,1 $inner.diffuse -cspan 3 -pady 2 -fill x \
2059	5,0 $inner.specularLevel_l -anchor e -pady 2 \
2060	5,1 $inner.specularLevel -cspan 3 -pady 2 -fill x \
2061	6,0 $inner.specularExponent_l -anchor e -pady 2 \
2062	6,1 $inner.specularExponent -cspan 3 -pady 2 -fill x \
2063	7,0 $inner.opacity_l -anchor e -pady 2 \
2064	7,1 $inner.opacity -cspan 3 -pady 2 -fill x \
2065	8,0 $inner.thin -anchor e -pady 2 \
2066	8,1 $inner.thickness -cspan 2 -pady 2 -fill x \
2067	8,3 $inner.thick -anchor w -pady 2
2068
2069	blt::table configure $inner c0 c1 c3 r* -resize none
2070	blt::table configure $inner r9 -resize expand
2071	}
2072
2073	itcl::body Rappture::FlowvisViewer::BuildCutplanesTab {} {
2074	set inner [$itk_component(main) insert end \
2075	-title "Cutplane Settings" \
2076	-icon [Rappture::icon cutbutton]]
2077	$inner configure -borderwidth 4
2078
2079	checkbutton $inner.visible \
2080	-text "Show Cutplanes" \
2081	-variable [itcl::scope _settings(-cutplanesvisible)] \
2082	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2083	-font "Arial 9"
2084
2085	# X-value slicer...
2086	itk_component add xCutButton {
2087	Rappture::PushButton $inner.xbutton \
2088	-onimage [Rappture::icon x-cutplane] \
2089	-offimage [Rappture::icon x-cutplane] \
2090	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2091	-variable [itcl::scope _settings(-xcutplanevisible)]
2092	}
2093	Rappture::Tooltip::for $itk_component(xCutButton) \
2094	"Toggle the X cut plane on/off"
2095	$itk_component(xCutButton) select
2096
2097	itk_component add xCutScale {
2098	::scale $inner.xval -from 100 -to 0 \
2099	-width 10 -orient vertical -showvalue off \
2100	-borderwidth 1 -highlightthickness 0 \
2101	-command [itcl::code $this Slice move x] \
2102	-variable [itcl::scope _settings(-xcutplaneposition)]
2103	} {
2104	usual
2105	ignore -borderwidth -highlightthickness
2106	}
2107	# Set the default cutplane value before disabling the scale.
2108	$itk_component(xCutScale) set 50
2109	$itk_component(xCutScale) configure -state disabled
2110	Rappture::Tooltip::for $itk_component(xCutScale) \
2111	"@[itcl::code $this SlicerTip x]"
2112
2113	# Y-value slicer...
2114	itk_component add yCutButton {
2115	Rappture::PushButton $inner.ybutton \
2116	-onimage [Rappture::icon y-cutplane] \
2117	-offimage [Rappture::icon y-cutplane] \
2118	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2119	-variable [itcl::scope _settings(-ycutplanevisible)]
2120	}
2121	Rappture::Tooltip::for $itk_component(yCutButton) \
2122	"Toggle the Y cut plane on/off"
2123	$itk_component(yCutButton) select
2124
2125	itk_component add yCutScale {
2126	::scale $inner.yval -from 100 -to 0 \
2127	-width 10 -orient vertical -showvalue off \
2128	-borderwidth 1 -highlightthickness 0 \
2129	-command [itcl::code $this Slice move y] \
2130	-variable [itcl::scope _settings(-ycutplaneposition)]
2131	} {
2132	usual
2133	ignore -borderwidth -highlightthickness
2134	}
2135	Rappture::Tooltip::for $itk_component(yCutScale) \
2136	"@[itcl::code $this SlicerTip y]"
2137	# Set the default cutplane value before disabling the scale.
2138	$itk_component(yCutScale) set 50
2139	$itk_component(yCutScale) configure -state disabled
2140
2141	# Z-value slicer...
2142	itk_component add zCutButton {
2143	Rappture::PushButton $inner.zbutton \
2144	-onimage [Rappture::icon z-cutplane] \
2145	-offimage [Rappture::icon z-cutplane] \
2146	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2147	-variable [itcl::scope _settings(-zcutplanevisible)]
2148	}
2149	Rappture::Tooltip::for $itk_component(zCutButton) \
2150	"Toggle the Z cut plane on/off"
2151	$itk_component(zCutButton) select
2152
2153	itk_component add zCutScale {
2154	::scale $inner.zval -from 100 -to 0 \
2155	-width 10 -orient vertical -showvalue off \
2156	-borderwidth 1 -highlightthickness 0 \
2157	-command [itcl::code $this Slice move z] \
2158	-variable [itcl::scope _settings(-zcutplaneposition)]
2159	} {
2160	usual
2161	ignore -borderwidth -highlightthickness
2162	}
2163	$itk_component(zCutScale) set 50
2164	$itk_component(zCutScale) configure -state disabled
2165	Rappture::Tooltip::for $itk_component(zCutScale) \
2166	"@[itcl::code $this SlicerTip z]"
2167
2168	blt::table $inner \
2169	0,1 $inner.visible -anchor w -pady 2 -cspan 4 \
2170	1,1 $itk_component(xCutScale) \
2171	1,2 $itk_component(yCutScale) \
2172	1,3 $itk_component(zCutScale) \
2173	2,1 $itk_component(xCutButton) \
2174	2,2 $itk_component(yCutButton) \
2175	2,3 $itk_component(zCutButton)
2176
2177	blt::table configure $inner r0 r1 r2 c* -resize none
2178	blt::table configure $inner r3 c4 -resize expand
2179	blt::table configure $inner c0 -width 2
2180	blt::table configure $inner c1 c2 c3 -padx 2
2181	}
2182
2183	itcl::body Rappture::FlowvisViewer::BuildCameraTab {} {
2184	set inner [$itk_component(main) insert end \
2185	-title "Camera Settings" \
2186	-icon [Rappture::icon camera]]
2187	$inner configure -borderwidth 4
2188
2189	label $inner.view_l -text "view" -font "Arial 9"
2190	set f [frame $inner.view]
2191	foreach side { front back left right top bottom } {
2192	button $f.$side -image [Rappture::icon view$side] \
2193	-command [itcl::code $this SetOrientation $side]
2194	Rappture::Tooltip::for $f.$side "Change the view to $side"
2195	pack $f.$side -side left
2196	}
2197
2198	blt::table $inner \
2199	0,0 $inner.view_l -anchor e -pady 2 \
2200	0,1 $inner.view -anchor w -pady 2
2201	blt::table configure $inner r0 -resize none
2202
2203	set row 1
2204	set labels { qw qx qy qz xpan ypan zoom }
2205	foreach tag $labels {
2206	label $inner.${tag}label -text $tag -font "Arial 9"
2207	entry $inner.${tag} -font "Arial 9" -bg white \
2208	-textvariable [itcl::scope _settings(-$tag)]
2209	bind $inner.${tag} <Return> \
2210	[itcl::code $this camera set -${tag}]
2211	bind $inner.${tag} <KP_Enter> \
2212	[itcl::code $this camera set -${tag}]
2213	blt::table $inner \
2214	$row,0 $inner.${tag}label -anchor e -pady 2 \
2215	$row,1 $inner.${tag} -anchor w -pady 2
2216	blt::table configure $inner r$row -resize none
2217	incr row
2218	}
2219
2220	blt::table configure $inner c* -resize none
2221	blt::table configure $inner c2 -resize expand
2222	blt::table configure $inner r$row -resize expand
2223	}
2224
2225	itcl::body Rappture::FlowvisViewer::GetFlowInfo { w } {
2226	set flowobj ""
2227	foreach key [array names _dataset2flow] {
2228	set flowobj $_dataset2flow($key)
2229	break
2230	}
2231	if { $flowobj == "" } {
2232	return
2233	}
2234	if { [winfo exists $w.frame] } {
2235	destroy $w.frame
2236	}
2237	set inner [frame $w.frame]
2238	blt::table $w \
2239	7,0 $inner -fill both -cspan 2 -anchor nw
2240	array set hints [$flowobj hints]
2241	checkbutton $inner.showstreams -text "Streams Plane" \
2242	-variable [itcl::scope _settings(-streams)] \
2243	-command [itcl::code $this streams $key $hints(name)] \
2244	-font "Arial 9"
2245	Rappture::Tooltip::for $inner.showstreams $hints(description)
2246
2247	checkbutton $inner.showarrows -text "Arrows" \
2248	-variable [itcl::scope _settings(-arrows)] \
2249	-command [itcl::code $this arrows $key $hints(name)] \
2250	-font "Arial 9"
2251
2252	label $inner.particles -text "Particles" -font "Arial 9 bold"
2253	label $inner.boxes -text "Boxes" -font "Arial 9 bold"
2254
2255	blt::table $inner \
2256	1,0 $inner.showstreams -anchor w \
2257	2,0 $inner.showarrows -anchor w
2258	blt::table configure $inner c0 c1 -resize none
2259	blt::table configure $inner c2 -resize expand
2260
2261	set row 3
2262	set particles [$flowobj particles]
2263	if { [llength $particles] > 0 } {
2264	blt::table $inner $row,0 $inner.particles -anchor w
2265	incr row
2266	}
2267	foreach part $particles {
2268	array unset info
2269	array set info $part
2270	set name $info(name)
2271	if { ![info exists _settings(-particles-$name)] } {
2272	set _settings(-particles-$name) $info(hide)
2273	}
2274	checkbutton $inner.part$row -text $info(label) \
2275	-variable [itcl::scope _settings(-particles-$name)] \
2276	-onvalue 0 -offvalue 1 \
2277	-command [itcl::code $this particles $key $name] \
2278	-font "Arial 9"
2279	Rappture::Tooltip::for $inner.part$row $info(description)
2280	blt::table $inner $row,0 $inner.part$row -anchor w
2281	if { !$_settings(-particles-$name) } {
2282	$inner.part$row select
2283	}
2284	incr row
2285	}
2286	set boxes [$flowobj boxes]
2287	if { [llength $boxes] > 0 } {
2288	blt::table $inner $row,0 $inner.boxes -anchor w
2289	incr row
2290	}
2291	foreach box $boxes {
2292	array unset info
2293	array set info $box
2294	set name $info(name)
2295	if { ![info exists _settings(-box-$name)] } {
2296	set _settings(-box-$name) $info(hide)
2297	}
2298	checkbutton $inner.box$row -text $info(label) \
2299	-variable [itcl::scope _settings(-box-$name)] \
2300	-onvalue 0 -offvalue 1 \
2301	-command [itcl::code $this box $key $name] \
2302	-font "Arial 9"
2303	Rappture::Tooltip::for $inner.box$row $info(description)
2304	blt::table $inner $row,0 $inner.box$row -anchor w
2305	if { !$_settings(-box-$name) } {
2306	$inner.box$row select
2307	}
2308	incr row
2309	}
2310	blt::table configure $inner r* -resize none
2311	blt::table configure $inner r$row -resize expand
2312	blt::table configure $inner c3 -resize expand
2313	event generate [winfo parent [winfo parent $w]] <Configure>
2314	}
2315
2316	itcl::body Rappture::FlowvisViewer::particles { tag name } {
2317	set bool $_settings(-particles-$name)
2318	SendCmd "$tag particles configure {$name} -hide $bool"
2319	}
2320
2321	itcl::body Rappture::FlowvisViewer::box { tag name } {
2322	set bool $_settings(-box-$name)
2323	SendCmd "$tag box configure {$name} -hide $bool"
2324	}
2325
2326	itcl::body Rappture::FlowvisViewer::streams { tag name } {
2327	set bool $_settings(-streams)
2328	SendCmd "$tag configure -slice $bool"
2329	}
2330
2331	itcl::body Rappture::FlowvisViewer::arrows { tag name } {
2332	set bool $_settings(-arrows)
2333	SendCmd "$tag configure -arrows $bool"
2334	}
2335
2336	# ----------------------------------------------------------------------
2337	# USAGE: Slice move x\|y\|z <newval>
2338	#
2339	# Called automatically when the user drags the slider to move the
2340	# cut plane that slices 3D data. Gets the current value from the
2341	# slider and moves the cut plane to the appropriate point in the
2342	# data set.
2343	# ----------------------------------------------------------------------
2344	itcl::body Rappture::FlowvisViewer::Slice {option args} {
2345	switch -- $option {
2346	move {
2347	if {[llength $args] != 2} {
2348	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2349	}
2350	set axis [lindex $args 0]
2351	set newval [lindex $args 1]
2352
2353	set newpos [expr {0.01*$newval}]
2354	set datasets [CurrentDatasets -cutplanes]
2355	set tag [lindex $datasets 0]
2356	SendCmd "cutplane position $newpos $axis $tag"
2357	}
2358	default {
2359	error "bad option \"$option\": should be axis, move, or volume"
2360	}
2361	}
2362	}
2363
2364	# ----------------------------------------------------------------------
2365	# USAGE: SlicerTip <axis>
2366	#
2367	# Used internally to generate a tooltip for the x/y/z slicer controls.
2368	# Returns a message that includes the current slicer value.
2369	# ----------------------------------------------------------------------
2370	itcl::body Rappture::FlowvisViewer::SlicerTip {axis} {
2371	set val [$itk_component(${axis}CutScale) get]
2372	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2373	}
2374
2375	itcl::body Rappture::FlowvisViewer::DoResize {} {
2376	$_arcball resize $_width $_height
2377	SendCmd "screen size $_width $_height"
2378	set _resizePending 0
2379	}
2380
2381	itcl::body Rappture::FlowvisViewer::EventuallyResize { w h } {
2382	set _width $w
2383	set _height $h
2384	$_arcball resize $w $h
2385	if { !$_resizePending } {
2386	$_dispatcher event -after 200 !resize
2387	set _resizePending 1
2388	}
2389	}
2390
2391	itcl::body Rappture::FlowvisViewer::EventuallyRedrawLegend {} {
2392	if { !$_resizeLegendPending } {
2393	$_dispatcher event -after 100 !legend
2394	set _resizeLegendPending 1
2395	}
2396	}
2397
2398	itcl::body Rappture::FlowvisViewer::EventuallyGoto { nSteps } {
2399	set _flow(goto) $nSteps
2400	if { !$_gotoPending } {
2401	$_dispatcher event -after 1000 !goto
2402	set _gotoPending 1
2403	}
2404	}
2405
2406	# camera --
2407	#
2408	itcl::body Rappture::FlowvisViewer::camera {option args} {
2409	switch -- $option {
2410	"show" {
2411	puts [array get _view]
2412	}
2413	"set" {
2414	set what [lindex $args 0]
2415	set x $_settings($what)
2416	set code [catch { string is double $x } result]
2417	if { $code != 0 \|\| !$result } {
2418	set _settings($what) $_view($what)
2419	return
2420	}
2421	switch -- $what {
2422	"-xpan" - "-ypan" {
2423	set _view($what) $_settings($what)
2424	PanCamera
2425	}
2426	"-qx" - "-qy" - "-qz" - "-qw" {
2427	set _view($what) $_settings($what)
2428	set q [ViewToQuaternion]
2429	$_arcball quaternion $q
2430	SendCmd "camera orient $q"
2431	}
2432	"-zoom" {
2433	set _view($what) $_settings($what)
2434	SendCmd "camera zoom $_view($what)"
2435	}
2436	}
2437	}
2438	}
2439	}
2440
2441	itcl::body Rappture::FlowvisViewer::SendFlowCmd { dataobj comp nbytes numComponents } {
2442	set tag "$dataobj-$comp"
2443	if { ![info exists _dataset2flow($tag)] } {
2444	SendCmd "flow add $tag"
2445	SendCmd "$tag data follows $nbytes $numComponents"
2446	return 0
2447	}
2448	set flowobj $_dataset2flow($tag)
2449	if { $flowobj == "" } {
2450	puts stderr "no flowobj"
2451	return -1
2452	}
2453	SendCmd "if {\[flow exists $tag\]} {flow delete $tag}"
2454	array set info [$flowobj hints]
2455	set _settings(-volume) $info(volume)
2456	set _settings(-outlinevisible) $info(outline)
2457	set _settings(-arrows) $info(arrows)
2458	set _settings(-duration) $info(duration)
2459	$itk_component(speed) value $info(speed)
2460	set cmd {}
2461	append cmd "flow add $tag"
2462	append cmd " -position $info(position)"
2463	append cmd " -axis $info(axis)"
2464	append cmd " -volume $info(volume)"
2465	append cmd " -outline $info(outline)"
2466	append cmd " -slice $info(streams)"
2467	append cmd " -arrows $info(arrows)"
2468	SendCmd $cmd
2469	foreach part [$flowobj particles] {
2470	set cmd {}
2471	array unset info
2472	array set info $part
2473	set color [Color2RGB $info(color)]
2474	append cmd "$tag particles add $info(name)"
2475	append cmd " -position $info(position)"
2476	append cmd " -hide $info(hide)"
2477	append cmd " -axis $info(axis)"
2478	append cmd " -color {$color}"
2479	append cmd " -size $info(size)"
2480	SendCmd $cmd
2481	}
2482	foreach box [$flowobj boxes] {
2483	set cmd {}
2484	array unset info
2485	set info(corner1) ""
2486	set info(corner2) ""
2487	array set info $box
2488	if { $info(corner1) == "" \|\| $info(corner2) == "" } {
2489	continue
2490	}
2491	set color [Color2RGB $info(color)]
2492	append cmd "$tag box add $info(name)"
2493	append cmd " -color {$color}"
2494	append cmd " -hide $info(hide)"
2495	append cmd " -linewidth $info(linewidth) "
2496	append cmd " -corner1 {$info(corner1)} "
2497	append cmd " -corner2 {$info(corner2)}"
2498	SendCmd $cmd
2499	}
2500	SendCmd "$tag data follows $nbytes $numComponents"
2501	return 0
2502	}
2503
2504	#
2505	# flow --
2506	#
2507	# Called when the user clicks on the stop or play buttons
2508	# for flow visualization.
2509	#
2510	# $this flow play
2511	# $this flow stop
2512	# $this flow toggle
2513	# $this flow reset
2514	# $this flow pause
2515	# $this flow next
2516	#
2517	itcl::body Rappture::FlowvisViewer::flow { args } {
2518	set option [lindex $args 0]
2519	switch -- $option {
2520	"goto2" {
2521	puts stderr "actually sending \"flow goto $_flow(goto)\""
2522	SendCmd "flow goto $_flow(goto)"
2523	set _gotoPending 0
2524	}
2525	"goto" {
2526	puts stderr "flow goto to $_settings(-currenttime)"
2527	# Figure out how many steps to the current time based upon
2528	# the speed and duration.
2529	set current $_settings(-currenttime)
2530	set speed [$itk_component(speed) value]
2531	set time [str2millisecs $_settings(-duration)]
2532	$itk_component(dial) configure -max $time
2533	set delay [expr int(round(500.0/$speed))]
2534	set timePerStep [expr {double($time) / $delay}]
2535	set nSteps [expr {int(ceil($current/$timePerStep))}]
2536	EventuallyGoto $nSteps
2537	}
2538	"speed" {
2539	set speed [$itk_component(speed) value]
2540	set _flow(delay) [expr int(round(500.0/$speed))]
2541	}
2542	"duration" {
2543	set max [str2millisecs $_settings(-duration)]
2544	if { $max < 0 } {
2545	bell
2546	return
2547	}
2548	set _flow(duration) $max
2549	set _settings(-duration) [millisecs2str $max]
2550	$itk_component(dial) configure -max $max
2551	}
2552	"off" {
2553	set _flow(state) 0
2554	$_dispatcher cancel !play
2555	$itk_component(play) deselect
2556	}
2557	"on" {
2558	flow speed
2559	flow duration
2560	set _flow(state) 1
2561	set _settings(-currenttime) 0
2562	$itk_component(play) select
2563	}
2564	"stop" {
2565	if { $_flow(state) } {
2566	flow off
2567	flow reset
2568	}
2569	}
2570	"pause" {
2571	if { $_flow(state) } {
2572	flow off
2573	}
2574	}
2575	"play" {
2576	# If the flow is currently off, then restart it.
2577	if { !$_flow(state) } {
2578	flow on
2579	# If we're at the end of the flow, reset the flow.
2580	set _settings(-currenttime) \
2581	[expr {$_settings(-currenttime) + $_flow(delay)}]
2582	if { $_settings(-currenttime) >= $_flow(duration) } {
2583	set _settings(-step) 1
2584	SendCmd "flow reset"
2585	}
2586	flow next
2587	}
2588	}
2589	"toggle" {
2590	if { $_settings(-play) } {
2591	flow play
2592	} else {
2593	flow pause
2594	}
2595	}
2596	"reset" {
2597	set _settings(-currenttime) 0
2598	SendCmd "flow reset"
2599	}
2600	"next" {
2601	if { ![winfo viewable $itk_component(view)] } {
2602	flow stop
2603	return
2604	}
2605	set _settings(-currenttime) \
2606	[expr {$_settings(-currenttime) + $_flow(delay)}]
2607	if { $_settings(-currenttime) >= $_flow(duration) } {
2608	if { !$_settings(-loop) } {
2609	flow off
2610	return
2611	}
2612	flow reset
2613	} else {
2614	SendCmd "flow next"
2615	}
2616	$_dispatcher event -after $_flow(delay) !play
2617	}
2618	default {
2619	error "bad option \"$option\": should be play, stop, toggle, or reset."
2620	}
2621	}
2622	}
2623
2624	itcl::body Rappture::FlowvisViewer::WaitIcon { option widget } {
2625	switch -- $option {
2626	"start" {
2627	$_dispatcher dispatch $this !waiticon \
2628	"[itcl::code $this WaitIcon "next" $widget] ; list"
2629	set _icon 0
2630	$widget configure -image [Rappture::icon bigroller${_icon}]
2631	$_dispatcher event -after 100 !waiticon
2632	}
2633	"next" {
2634	incr _icon
2635	if { $_icon >= 8 } {
2636	set _icon 0
2637	}
2638	$widget configure -image [Rappture::icon bigroller${_icon}]
2639	$_dispatcher event -after 100 !waiticon
2640	}
2641	"stop" {
2642	$_dispatcher cancel !waiticon
2643	}
2644	}
2645	}
2646
2647	itcl::body Rappture::FlowvisViewer::GetVtkData { args } {
2648	# FIXME: We can only put one component of one dataset in a single
2649	# VTK file. To download all components/results, we would need
2650	# to put them in an archive (e.g. zip or tar file)
2651	if { $_first != "" } {
2652	set cname [lindex [$_first components] 0]
2653	set bytes [$_first vtkdata $cname]
2654	return [list .vtk $bytes]
2655	}
2656	puts stderr "Failed to get vtkdata"
2657	return ""
2658	}
2659
2660	itcl::body Rappture::FlowvisViewer::GetImage { args } {
2661	if { [image width $_image(download)] > 0 &&
2662	[image height $_image(download)] > 0 } {
2663	set bytes [$_image(download) data -format "jpeg -quality 100"]
2664	set bytes [Rappture::encoding::decode -as b64 $bytes]
2665	return [list .jpg $bytes]
2666	}
2667	return ""
2668	}
2669
2670	itcl::body Rappture::FlowvisViewer::GetPngImage { widget width height } {
2671	set token "print[incr _nextToken]"
2672	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
2673	set $var ""
2674
2675	# Setup an automatic timeout procedure.
2676	$_dispatcher dispatch $this !pngtimeout "set $var {} ; list"
2677
2678	set popup .flowvisviewerprint
2679	if {![winfo exists $popup]} {
2680	Rappture::Balloon $popup -title "Generating file..."
2681	set inner [$popup component inner]
2682	label $inner.title -text "Generating hardcopy." -font "Arial 10 bold"
2683	label $inner.please -text "This may take a minute." -font "Arial 10"
2684	label $inner.icon -image [Rappture::icon bigroller0]
2685	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
2686	-command [list set $var ""]
2687	blt::table $inner \
2688	0,0 $inner.title -cspan 2 \
2689	1,0 $inner.please -anchor w \
2690	1,1 $inner.icon -anchor e \
2691	2,0 $inner.cancel -cspan 2
2692	blt::table configure $inner r0 -pady 4
2693	blt::table configure $inner r2 -pady 4
2694	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
2695	} else {
2696	set inner [$popup component inner]
2697	}
2698
2699	$_dispatcher event -after 60000 !pngtimeout
2700	WaitIcon start $inner.icon
2701	grab set $inner
2702	focus $inner.cancel
2703
2704	SendCmd "print $token $width $height"
2705
2706	$popup activate $widget below
2707	update idletasks
2708	update
2709	# We wait here for either
2710	# 1) the png to be delivered or
2711	# 2) timeout or
2712	# 3) user cancels the operation.
2713	tkwait variable $var
2714
2715	# Clean up.
2716	$_dispatcher cancel !pngtimeout
2717	WaitIcon stop $inner.icon
2718	grab release $inner
2719	$popup deactivate
2720	update
2721
2722	if { $_hardcopy($this-$token) != "" } {
2723	return [list .png $_hardcopy($this-$token)]
2724	}
2725	return ""
2726	}
2727
2728	itcl::body Rappture::FlowvisViewer::GetMovie { widget w h } {
2729	set token "movie[incr _nextToken]"
2730	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
2731	set $var ""
2732
2733	# Setup an automatic timeout procedure.
2734	$_dispatcher dispatch $this !movietimeout "set $var {} ; list"
2735	set popup .flowvisviewermovie
2736	if {![winfo exists $popup]} {
2737	Rappture::Balloon $popup -title "Generating movie..."
2738	set inner [$popup component inner]
2739	label $inner.title -text "Generating movie for download" \
2740	-font "Arial 10 bold"
2741	label $inner.please -text "This may take a few minutes." \
2742	-font "Arial 10"
2743	label $inner.icon -image [Rappture::icon bigroller0]
2744	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
2745	-command [list set $var ""]
2746	blt::table $inner \
2747	0,0 $inner.title -cspan 2 \
2748	1,0 $inner.please -anchor w \
2749	1,1 $inner.icon -anchor e \
2750	2,0 $inner.cancel -cspan 2
2751	blt::table configure $inner r0 -pady 4
2752	blt::table configure $inner r2 -pady 4
2753	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
2754	} else {
2755	set inner [$popup component inner]
2756	}
2757	update
2758	# Timeout is set to 10 minutes.
2759	$_dispatcher event -after 600000 !movietimeout
2760	WaitIcon start $inner.icon
2761	grab set $inner
2762	focus $inner.cancel
2763
2764	flow duration
2765	flow speed
2766	set nframes [expr round($_flow(duration) / $_flow(delay))]
2767	set framerate [expr 1000.0 / $_flow(delay)]
2768
2769	# These are specific to MPEG1 video generation
2770	set framerate 25.0
2771	set bitrate 6.0e+6
2772
2773	set start [clock seconds]
2774	SendCmd "flow video $token -width $w -height $h -numframes $nframes "
2775
2776	$popup activate $widget below
2777	update idletasks
2778	update
2779	# We wait here until
2780	# 1. the movie is delivered or
2781	# 2. we've timed out or
2782	# 3. the user has canceled the operation.b
2783	tkwait variable $var
2784
2785	puts stderr "Video generated in [expr [clock seconds] - $start] seconds."
2786
2787	# Clean up.
2788	$_dispatcher cancel !movietimeout
2789	WaitIcon stop $inner.icon
2790	grab release $inner
2791	$popup deactivate
2792	destroy $popup
2793	update
2794
2795	# This will both cancel the movie generation (if it hasn't already
2796	# completed) and reset the flow.
2797	SendCmd "flow reset"
2798	if { $_hardcopy($this-$token) != "" } {
2799	return [list .mpg $_hardcopy($this-$token)]
2800	}
2801	return ""
2802	}
2803
2804	itcl::body Rappture::FlowvisViewer::BuildDownloadPopup { popup command } {
2805	Rappture::Balloon $popup \
2806	-title "[Rappture::filexfer::label downloadWord] as..."
2807	set inner [$popup component inner]
2808	label $inner.summary -text "" -anchor w
2809	radiobutton $inner.vtk_button -text "VTK data file" \
2810	-variable [itcl::scope _downloadPopup(format)] \
2811	-font "Arial 9" \
2812	-value vtk
2813	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2814
2815	radiobutton $inner.image_button -text "Image File" \
2816	-variable [itcl::scope _downloadPopup(format)] \
2817	-font "Arial 9 " \
2818	-value image
2819	Rappture::Tooltip::for $inner.image_button \
2820	"Save as digital image."
2821
2822	set res "640x480"
2823	radiobutton $inner.movie_std -text "Movie (standard $res)" \
2824	-variable [itcl::scope _downloadPopup(format)] \
2825	-value $res
2826	Rappture::Tooltip::for $inner.movie_std \
2827	"Save as movie file."
2828
2829	set res "1024x768"
2830	radiobutton $inner.movie_high -text "Movie (high quality $res)" \
2831	-variable [itcl::scope _downloadPopup(format)] \
2832	-value $res
2833	Rappture::Tooltip::for $inner.movie_high \
2834	"Save as movie file."
2835
2836	button $inner.ok -text "Save" \
2837	-highlightthickness 0 -pady 2 -padx 3 \
2838	-command $command \
2839	-compound left \
2840	-image [Rappture::icon download]
2841
2842	button $inner.cancel -text "Cancel" \
2843	-highlightthickness 0 -pady 2 -padx 3 \
2844	-command [list $popup deactivate] \
2845	-compound left \
2846	-image [Rappture::icon cancel]
2847
2848	blt::table $inner \
2849	0,0 $inner.summary -cspan 2 \
2850	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2851	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2852	3,0 $inner.movie_std -anchor w -cspan 2 -padx { 4 0 } \
2853	4,0 $inner.movie_high -anchor w -cspan 2 -padx { 4 0 } \
2854	6,1 $inner.cancel -width .9i -fill y \
2855	6,0 $inner.ok -padx 2 -width .9i -fill y
2856	blt::table configure $inner r5 -height 4
2857	blt::table configure $inner r6 -pady 4
2858	raise $inner.image_button
2859	$inner.vtk_button invoke
2860	return $inner
2861	}
2862
2863	itcl::body Rappture::FlowvisViewer::str2millisecs { value } {
2864	set parts [split $value :]
2865	set secs 0
2866	set mins 0
2867	if { [llength $parts] == 1 } {
2868	scan [lindex $parts 0] "%d" secs
2869	} else {
2870	scan [lindex $parts 1] "%d" secs
2871	scan [lindex $parts 0] "%d" mins
2872	}
2873	set ms [expr {(($mins * 60) + $secs) * 1000.0}]
2874	if { $ms > 600000.0 } {
2875	set ms 600000.0
2876	}
2877	if { $ms == 0.0 } {
2878	set ms 60000.0
2879	}
2880	return $ms
2881	}
2882
2883	itcl::body Rappture::FlowvisViewer::millisecs2str { value } {
2884	set min [expr floor($value / 60000.0)]
2885	set sec [expr ($value - ($min*60000.0)) / 1000.0]
2886	return [format %02d:%02d [expr round($min)] [expr round($sec)]]
2887	}
2888
2889	itcl::body Rappture::FlowvisViewer::SetOrientation { side } {
2890	array set positions {
2891	front "1 0 0 0"
2892	back "0 0 1 0"
2893	left "0.707107 0 -0.707107 0"
2894	right "0.707107 0 0.707107 0"
2895	top "0.707107 -0.707107 0 0"
2896	bottom "0.707107 0.707107 0 0"
2897	}
2898	foreach name { -qw -qx -qy -qz } value $positions($side) {
2899	set _view($name) $value
2900	}
2901	set q [ViewToQuaternion]
2902	$_arcball quaternion $q
2903	SendCmd "camera orient $q"
2904	SendCmd "camera reset"
2905	set _view(-xpan) 0
2906	set _view(-ypan) 0
2907	set _view(-zoom) 1.0
2908	set _settings(-xpan) $_view(-xpan)
2909	set _settings(-ypan) $_view(-ypan)
2910	set _settings(-zoom) $_view(-zoom)
2911	}
2912
2913	#
2914	# BuildVolumeComponents --
2915	#
2916	# This is called from the "scale" method which is called when a new
2917	# dataset is added or deleted. It repopulates the dropdown menu of
2918	# volume component names. It sets the current component to the first
2919	# component in the list (of components found). Finally, if there is
2920	# only one component, don't display the label or the combobox in the
2921	# volume settings tab.
2922	#
2923	itcl::body Rappture::FlowvisViewer::BuildVolumeComponents {} {
2924	$itk_component(volcomponents) choices delete 0 end
2925	foreach name $_componentsList {
2926	$itk_component(volcomponents) choices insert end $name $name
2927	}
2928	set _current [lindex $_componentsList 0]
2929	$itk_component(volcomponents) value $_current
2930	}
2931
2932	#
2933	# GetDatasetsWithComponents --
2934	#
2935	# Returns a list of all the datasets (known by the combination of their
2936	# data object and component name) that match the given component name.
2937	# For example, this is used where we want to change the settings of
2938	# volumes that have the current component.
2939	#
2940	itcl::body Rappture::FlowvisViewer::GetDatasetsWithComponent { cname } {
2941	if { ![info exists _volcomponents($cname)] } {
2942	return ""
2943	}
2944	set list ""
2945	foreach tag $_volcomponents($cname) {
2946	if { ![info exists _datasets($tag)] } {
2947	continue
2948	}
2949	lappend list $tag
2950	}
2951	return $list
2952	}

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

Download in other formats: