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source: trunk/gui/scripts/flowvisviewer.tcl @ 3392

Last change on this file since 3392 was 3392, checked in by gah, 12 years ago
fixes for new stats file
File size: 105.5 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: flowvisviewer - 3D flow rendering
4	#
5	#
6	# This widget performs volume and flow rendering on 3D scalar/vector datasets.
7	# It connects to the Flowvis server running on a rendering farm, transmits
8	# data, and displays the results.
9	#
10	# ======================================================================
11	# AUTHOR: Michael McLennan, Purdue University
12	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
13	#
14	# See the file "license.terms" for information on usage and redistribution of
15	# this file, and for a DISCLAIMER OF ALL WARRANTIES.
16	# ======================================================================
17	package require Itk
18	package require BLT
19	package require Img
20
21	option add *FlowvisViewer.width 5i widgetDefault
22	option add FlowvisViewercursor crosshair widgetDefault
23	option add *FlowvisViewer.height 4i widgetDefault
24	option add *FlowvisViewer.foreground black widgetDefault
25	option add *FlowvisViewer.controlBackground gray widgetDefault
26	option add *FlowvisViewer.controlDarkBackground #999999 widgetDefault
27	option add *FlowvisViewer.plotBackground black widgetDefault
28	option add *FlowvisViewer.plotForeground white widgetDefault
29	option add *FlowvisViewer.plotOutline gray widgetDefault
30	option add *FlowvisViewer.font \
31	--helvetica-medium-r-normal--12-* widgetDefault
32
33	# must use this name -- plugs into Rappture::resources::load
34	proc FlowvisViewer_init_resources {} {
35	Rappture::resources::register \
36	nanovis_server Rappture::FlowvisViewer::SetServerList
37	}
38
39	itcl::class Rappture::FlowvisViewer {
40	inherit Rappture::VisViewer
41
42	itk_option define -plotforeground plotForeground Foreground ""
43	itk_option define -plotbackground plotBackground Background ""
44	itk_option define -plotoutline plotOutline PlotOutline ""
45
46	constructor { hostlist args } {
47	Rappture::VisViewer::constructor $hostlist
48	} {
49	# defined below
50	}
51	destructor {
52	# defined below
53	}
54	public proc SetServerList { namelist } {
55	Rappture::VisViewer::SetServerList "nanovis" $namelist
56	}
57	public method add {dataobj {settings ""}}
58	public method camera {option args}
59	public method delete {args}
60	public method disconnect {}
61	public method download {option args}
62	public method flow {option}
63	public method get {args}
64	public method isconnected {}
65	public method limits { tf }
66	public method overmarker { m x }
67	public method parameters {title args} {
68	# do nothing
69	}
70	public method rmdupmarker { m x }
71	public method scale {args}
72	public method sendto { cmd }
73	public method updatetransferfuncs {}
74
75	protected method Connect {}
76	protected method CurrentVolumeIds {{what -all}}
77	protected method Disconnect {}
78	protected method Resize {}
79	protected method ResizeLegend {}
80	protected method FixSettings {what {value ""}}
81	protected method Pan {option x y}
82	protected method Rebuild {}
83	protected method ReceiveData { args }
84	protected method ReceiveImage { args }
85	protected method ReceiveLegend { tf vmin vmax size }
86	protected method Rotate {option x y}
87	protected method SendCmd {string}
88	protected method SendDataObjs {}
89	protected method SendTransferFuncs {}
90	protected method Slice {option args}
91	protected method SlicerTip {axis}
92	protected method Zoom {option}
93
94	# soon to be removed.
95	protected method Flow {option args}
96	protected method Play {}
97	protected method Pause {}
98
99
100	# The following methods are only used by this class.
101
102	private method AddIsoMarker { x y }
103	private method BuildCameraTab {}
104	private method BuildCutplanesTab {}
105	private method BuildViewTab {}
106	private method BuildVolumeTab {}
107	private method ComputeTransferFunc { tf }
108	private method EventuallyResize { w h }
109	private method EventuallyGoto { nSteps }
110	private method EventuallyResizeLegend { }
111	private method FlowCmd { dataobj comp nbytes extents }
112	private method GetMovie { widget width height }
113	private method GetPngImage { widget width height }
114	private method NameTransferFunc { dataobj comp }
115	private method PanCamera {}
116	private method ParseLevelsOption { tf levels }
117	private method ParseMarkersOption { tf markers }
118	private method WaitIcon { option widget }
119	private method str2millisecs { value }
120	private method millisecs2str { value }
121	private method GetFlowInfo { widget }
122	private method particles { tag name }
123	private method box { tag name }
124	private method streams { tag name }
125	private method arrows { tag name }
126
127	private variable _arcball ""
128	private variable _useArcball 1
129	private variable _outbuf ;# buffer for outgoing commands
130
131	private variable _dlist "" ;# list of data objects
132	private variable _allDataObjs
133	private variable _obj2ovride ;# maps dataobj => style override
134	private variable _serverObjs ;# maps dataobj-component to volume ID
135	# in the server
136	private variable _sendobjs "" ;# list of data objs to send to server
137	private variable _recvObjs ;# list of data objs to send to server
138	private variable _obj2style ;# maps dataobj-component to transfunc
139	private variable _style2objs ;# maps tf back to list of
140	# dataobj-components using the tf.
141	private variable _obj2flow; # Maps dataobj-component to a flow.
142
143	private variable _click ;# info used for rotate operations
144	private variable _limits ;# autoscale min/max for all axes
145	private variable _view ;# view params for 3D view
146	private variable _isomarkers ;# array of isosurface level values 0..1
147	private common _settings
148	private variable _activeTf "" ;# The currently active transfer function.
149	private variable _first "" ;# This is the topmost volume.
150	private variable _buffering 0
151	private variable _nextToken 0
152	private variable _icon 0
153	private variable _flow
154	# This
155	# indicates which isomarkers and transfer
156	# function to use when changing markers,
157	# opacity, or thickness.
158	private common _downloadPopup ;# download options from popup
159
160	private common _hardcopy
161	private variable _width 0
162	private variable _height 0
163	private variable _resizePending 0
164	private variable _resizeLegendPending 0
165	private variable _gotoPending 0
166	}
167
168	itk::usual FlowvisViewer {
169	keep -background -foreground -cursor -font
170	keep -plotbackground -plotforeground
171	}
172
173	# ----------------------------------------------------------------------
174	# CONSTRUCTOR
175	# ----------------------------------------------------------------------
176	itcl::body Rappture::FlowvisViewer::constructor { hostlist args } {
177	set _serverType "nanovis"
178
179	# Draw legend event
180	$_dispatcher register !legend
181	$_dispatcher dispatch $this !legend "[itcl::code $this ResizeLegend]; list"
182
183	# Send dataobjs event
184	$_dispatcher register !send_dataobjs
185	$_dispatcher dispatch $this !send_dataobjs \
186	"[itcl::code $this SendDataObjs]; list"
187
188	# Send transferfunctions event
189	$_dispatcher register !send_transfunc
190	$_dispatcher dispatch $this !send_transfunc \
191	"[itcl::code $this SendTransferFuncs]; list"
192
193	# Rebuild event.
194	$_dispatcher register !rebuild
195	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
196
197	# Resize event.
198	$_dispatcher register !resize
199	$_dispatcher dispatch $this !resize "[itcl::code $this Resize]; list"
200
201	$_dispatcher register !play
202	$_dispatcher dispatch $this !play "[itcl::code $this flow next]; list"
203
204	# Draw legend event
205	$_dispatcher register !goto
206	$_dispatcher dispatch $this !goto "[itcl::code $this flow goto2]; list"
207
208	$_dispatcher register !movietimeout
209	$_dispatcher register !waiticon
210
211	set _flow(state) 0
212
213	set _outbuf ""
214
215	array set _downloadPopup {
216	format draft
217	}
218	#
219	# Populate parser with commands handle incoming requests
220	#
221	$_parser alias image [itcl::code $this ReceiveImage]
222	$_parser alias legend [itcl::code $this ReceiveLegend]
223	$_parser alias data [itcl::code $this ReceiveData]
224	$_parser alias viserror [itcl::code $this ReceiveError]
225
226	# Initialize the view to some default parameters.
227	array set _view {
228	qw 0.853553
229	qx -0.353553
230	qy 0.353553
231	qz 0.146447
232	theta 45
233	phi 45
234	psi 0
235	zoom 1.0
236	pan-x 0
237	pan-y 0
238	}
239	set _arcball [blt::arcball create 100 100]
240	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
241	$_arcball quaternion $q
242
243	set _limits(vmin) 0.0
244	set _limits(vmax) 1.0
245
246	array set _settings [subst {
247	$this-qw $_view(qw)
248	$this-qx $_view(qx)
249	$this-qy $_view(qy)
250	$this-qz $_view(qz)
251	$this-theta $_view(theta)
252	$this-phi $_view(phi)
253	$this-psi $_view(psi)
254	$this-zoom $_view(zoom)
255	$this-pan-x $_view(pan-x)
256	$this-pan-y $_view(pan-y)
257	$this-arrows 0
258	$this-currenttime 0
259	$this-duration 1:00
260	$this-loop 0
261	$this-play 0
262	$this-speed 500
263	$this-step 0
264	$this-streams 0
265	$this-volume 1
266	$this-xcutplane 0
267	$this-xcutposition 0
268	$this-ycutplane 0
269	$this-ycutposition 0
270	$this-zcutplane 0
271	$this-zcutposition 0
272	}]
273
274	itk_component add 3dview {
275	label $itk_component(plotarea).view -image $_image(plot) \
276	-highlightthickness 0 -borderwidth 0
277	} {
278	usual
279	ignore -highlightthickness -borderwidth -background
280	}
281	set f [$itk_component(main) component controls]
282	itk_component add reset {
283	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
284	-highlightthickness 0 \
285	-image [Rappture::icon reset-view] \
286	-command [itcl::code $this Zoom reset]
287	} {
288	usual
289	ignore -highlightthickness
290	}
291	pack $itk_component(reset) -side top -padx 2 -pady 2
292	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
293
294	itk_component add zoomin {
295	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
296	-highlightthickness 0 \
297	-image [Rappture::icon zoom-in] \
298	-command [itcl::code $this Zoom in]
299	} {
300	usual
301	ignore -highlightthickness
302	}
303	pack $itk_component(zoomin) -side top -padx 2 -pady 2
304	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
305
306	itk_component add zoomout {
307	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
308	-highlightthickness 0 \
309	-image [Rappture::icon zoom-out] \
310	-command [itcl::code $this Zoom out]
311	} {
312	usual
313	ignore -highlightthickness
314	}
315	pack $itk_component(zoomout) -side top -padx 2 -pady 2
316	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
317
318	itk_component add volume {
319	Rappture::PushButton $f.volume \
320	-onimage [Rappture::icon volume-on] \
321	-offimage [Rappture::icon volume-off] \
322	-command [itcl::code $this FixSettings volume] \
323	-variable [itcl::scope _settings($this-volume)]
324	}
325	$itk_component(volume) select
326	Rappture::Tooltip::for $itk_component(volume) \
327	"Toggle the volume cloud on/off"
328	pack $itk_component(volume) -padx 2 -pady 2
329
330	BuildViewTab
331	BuildVolumeTab
332	BuildCutplanesTab
333	BuildCameraTab
334
335	bind $itk_component(3dview) <Configure> \
336	[itcl::code $this EventuallyResize %w %h]
337
338	# Legend
339	set _image(legend) [image create photo]
340	itk_component add legend {
341	canvas $itk_component(plotarea).legend \
342	-height 50 -highlightthickness 0 -background black
343	} {
344	usual
345	ignore -highlightthickness
346	rename -background -plotbackground plotBackground Background
347	}
348	bind $itk_component(legend) <Configure> \
349	[itcl::code $this EventuallyResizeLegend]
350
351	# Hack around the Tk panewindow. The problem is that the requested
352	# size of the 3d view isn't set until an image is retrieved from
353	# the server. So the panewindow uses the tiny size.
354	set w 10000
355	pack forget $itk_component(3dview)
356	blt::table $itk_component(plotarea) \
357	0,0 $itk_component(3dview) -fill both -reqwidth $w \
358	1,0 $itk_component(legend) -fill x
359	blt::table configure $itk_component(plotarea) r1 -resize none
360	# Create flow controls...
361
362	itk_component add flowcontrols {
363	frame $itk_interior.flowcontrols
364	} {
365	usual
366	rename -background -controlbackground controlBackground Background
367	}
368	pack forget $itk_component(main)
369	blt::table $itk_interior \
370	0,0 $itk_component(main) -fill both \
371	1,0 $itk_component(flowcontrols) -fill x
372	blt::table configure $itk_interior r1 -resize none
373
374	# Rewind
375	itk_component add rewind {
376	button $itk_component(flowcontrols).reset \
377	-borderwidth 1 -padx 1 -pady 1 \
378	-image [Rappture::icon flow-rewind] \
379	-command [itcl::code $this flow reset]
380	} {
381	usual
382	ignore -borderwidth
383	rename -highlightbackground -controlbackground controlBackground \
384	Background
385	}
386	Rappture::Tooltip::for $itk_component(rewind) \
387	"Rewind flow"
388
389	# Stop
390	itk_component add stop {
391	button $itk_component(flowcontrols).stop \
392	-borderwidth 1 -padx 1 -pady 1 \
393	-image [Rappture::icon flow-stop] \
394	-command [itcl::code $this flow stop]
395	} {
396	usual
397	ignore -borderwidth
398	rename -highlightbackground -controlbackground controlBackground \
399	Background
400	}
401	Rappture::Tooltip::for $itk_component(stop) \
402	"Stop flow"
403
404	# Play
405	itk_component add play {
406	Rappture::PushButton $itk_component(flowcontrols).play \
407	-onimage [Rappture::icon flow-pause] \
408	-offimage [Rappture::icon flow-play] \
409	-variable [itcl::scope _settings($this-play)] \
410	-command [itcl::code $this flow toggle]
411	}
412	set fg [option get $itk_component(hull) font Font]
413	Rappture::Tooltip::for $itk_component(play) \
414	"Play/Pause flow"
415
416	# Loop
417	itk_component add loop {
418	Rappture::PushButton $itk_component(flowcontrols).loop \
419	-onimage [Rappture::icon flow-loop] \
420	-offimage [Rappture::icon flow-loop] \
421	-variable [itcl::scope _settings($this-loop)]
422	}
423	Rappture::Tooltip::for $itk_component(loop) \
424	"Play continuously"
425
426	itk_component add dial {
427	Rappture::Flowdial $itk_component(flowcontrols).dial \
428	-length 10 -valuewidth 0 -valuepadding 0 -padding 6 \
429	-linecolor "" -activelinecolor "" \
430	-min 0.0 -max 1.0 \
431	-variable [itcl::scope _settings($this-currenttime)] \
432	-knobimage [Rappture::icon knob2] -knobposition center@middle
433	} {
434	usual
435	ignore -dialprogresscolor
436	rename -background -controlbackground controlBackground Background
437	}
438	$itk_component(dial) current 0.0
439	bind $itk_component(dial) <<Value>> [itcl::code $this flow goto]
440	# Duration
441	itk_component add duration {
442	entry $itk_component(flowcontrols).duration \
443	-textvariable [itcl::scope _settings($this-duration)] \
444	-bg white -width 6 -font "arial 9"
445	} {
446	usual
447	ignore -highlightthickness -background
448	}
449	bind $itk_component(duration) <Return> [itcl::code $this flow duration]
450	bind $itk_component(duration) <Tab> [itcl::code $this flow duration]
451	Rappture::Tooltip::for $itk_component(duration) \
452	"Set duration of flow (format is min:sec)"
453
454
455	itk_component add durationlabel {
456	label $itk_component(flowcontrols).durationl \
457	-text "Duration:" -font $fg \
458	-highlightthickness 0
459	} {
460	usual
461	ignore -highlightthickness
462	rename -background -controlbackground controlBackground Background
463	}
464
465	itk_component add speedlabel {
466	label $itk_component(flowcontrols).speedl -text "Speed:" -font $fg \
467	-highlightthickness 0
468	} {
469	usual
470	ignore -highlightthickness
471	rename -background -controlbackground controlBackground Background
472	}
473
474	# Speed
475	itk_component add speed {
476	Rappture::Flowspeed $itk_component(flowcontrols).speed \
477	-min 1 -max 10 -width 3 -font "arial 9"
478	} {
479	usual
480	ignore -highlightthickness
481	rename -background -controlbackground controlBackground Background
482	}
483	Rappture::Tooltip::for $itk_component(speed) \
484	"Change speed of flow"
485
486	$itk_component(speed) value 1
487	bind $itk_component(speed) <<Value>> [itcl::code $this flow speed]
488
489
490	blt::table $itk_component(flowcontrols) \
491	0,0 $itk_component(rewind) -padx {3 0} \
492	0,1 $itk_component(stop) -padx {2 0} \
493	0,2 $itk_component(play) -padx {2 0} \
494	0,3 $itk_component(loop) -padx {2 0} \
495	0,4 $itk_component(dial) -fill x -padx {2 0 } \
496	0,5 $itk_component(duration) -padx { 0 0} \
497	0,7 $itk_component(speed) -padx {2 3}
498
499	# 0,6 $itk_component(speedlabel) -padx {2 0}
500	blt::table configure $itk_component(flowcontrols) c* -resize none
501	blt::table configure $itk_component(flowcontrols) c4 -resize both
502	blt::table configure $itk_component(flowcontrols) r0 -pady 1
503	# Bindings for rotation via mouse
504	bind $itk_component(3dview) <ButtonPress-1> \
505	[itcl::code $this Rotate click %x %y]
506	bind $itk_component(3dview) <B1-Motion> \
507	[itcl::code $this Rotate drag %x %y]
508	bind $itk_component(3dview) <ButtonRelease-1> \
509	[itcl::code $this Rotate release %x %y]
510
511	bind $itk_component(3dview) <Configure> \
512	[itcl::code $this EventuallyResize %w %h]
513
514	# Bindings for panning via mouse
515	bind $itk_component(3dview) <ButtonPress-2> \
516	[itcl::code $this Pan click %x %y]
517	bind $itk_component(3dview) <B2-Motion> \
518	[itcl::code $this Pan drag %x %y]
519	bind $itk_component(3dview) <ButtonRelease-2> \
520	[itcl::code $this Pan release %x %y]
521
522	# Bindings for panning via keyboard
523	bind $itk_component(3dview) <KeyPress-Left> \
524	[itcl::code $this Pan set -10 0]
525	bind $itk_component(3dview) <KeyPress-Right> \
526	[itcl::code $this Pan set 10 0]
527	bind $itk_component(3dview) <KeyPress-Up> \
528	[itcl::code $this Pan set 0 -10]
529	bind $itk_component(3dview) <KeyPress-Down> \
530	[itcl::code $this Pan set 0 10]
531	bind $itk_component(3dview) <Shift-KeyPress-Left> \
532	[itcl::code $this Pan set -2 0]
533	bind $itk_component(3dview) <Shift-KeyPress-Right> \
534	[itcl::code $this Pan set 2 0]
535	bind $itk_component(3dview) <Shift-KeyPress-Up> \
536	[itcl::code $this Pan set 0 -2]
537	bind $itk_component(3dview) <Shift-KeyPress-Down> \
538	[itcl::code $this Pan set 0 2]
539
540	# Bindings for zoom via keyboard
541	bind $itk_component(3dview) <KeyPress-Prior> \
542	[itcl::code $this Zoom out]
543	bind $itk_component(3dview) <KeyPress-Next> \
544	[itcl::code $this Zoom in]
545
546	bind $itk_component(3dview) <Enter> "focus $itk_component(3dview)"
547
548	if {[string equal "x11" [tk windowingsystem]]} {
549	# Bindings for zoom via mouse
550	bind $itk_component(3dview) <4> [itcl::code $this Zoom out]
551	bind $itk_component(3dview) <5> [itcl::code $this Zoom in]
552	}
553
554	set _image(download) [image create photo]
555
556	eval itk_initialize $args
557
558	Connect
559	}
560
561	# ----------------------------------------------------------------------
562	# DESTRUCTOR
563	# ----------------------------------------------------------------------
564	itcl::body Rappture::FlowvisViewer::destructor {} {
565	set _sendobjs "" ;# stop any send in progress
566	$_dispatcher cancel !rebuild
567	$_dispatcher cancel !send_dataobjs
568	$_dispatcher cancel !send_transfunc
569	image delete $_image(plot)
570	image delete $_image(legend)
571	image delete $_image(download)
572	catch { blt::arcball destroy $_arcball }
573	array unset _settings $this-*
574	}
575
576	# ----------------------------------------------------------------------
577	# USAGE: add <dataobj> ?<settings>?
578	#
579	# Clients use this to add a data object to the plot. The optional
580	# <settings> are used to configure the plot. Allowed settings are
581	# -color, -brightness, -width, -linestyle, and -raise.
582	# ----------------------------------------------------------------------
583	itcl::body Rappture::FlowvisViewer::add {dataobj {settings ""}} {
584	array set params {
585	-color auto
586	-width 1
587	-linestyle solid
588	-brightness 0
589	-raise 0
590	-description ""
591	-param ""
592	}
593	foreach {opt val} $settings {
594	if {![info exists params($opt)]} {
595	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
596	}
597	set params($opt) $val
598	}
599	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
600	# can't handle -autocolors yet
601	set params(-color) black
602	}
603	foreach comp [$dataobj components] {
604	set flowobj [$dataobj flowhints $comp]
605	if { $flowobj == "" } {
606	puts stderr "no flowhints $dataobj-$comp"
607	continue
608	}
609	set _obj2flow($dataobj-$comp) $flowobj
610	}
611	set pos [lsearch -exact $dataobj $_dlist]
612	if {$pos < 0} {
613	lappend _dlist $dataobj
614	set _allDataObjs($dataobj) 1
615	set _obj2ovride($dataobj-color) $params(-color)
616	set _obj2ovride($dataobj-width) $params(-width)
617	set _obj2ovride($dataobj-raise) $params(-raise)
618	$_dispatcher event -idle !rebuild
619	}
620	}
621
622	# ----------------------------------------------------------------------
623	# USAGE: get ?-objects?
624	# USAGE: get ?-image 3dview\|legend?
625	#
626	# Clients use this to query the list of objects being plotted, in
627	# order from bottom to top of this result. The optional "-image"
628	# flag can also request the internal images being shown.
629	# ----------------------------------------------------------------------
630	itcl::body Rappture::FlowvisViewer::get {args} {
631	if {[llength $args] == 0} {
632	set args "-objects"
633	}
634
635	set op [lindex $args 0]
636	switch -- $op {
637	-objects {
638	# put the dataobj list in order according to -raise options
639	set dlist $_dlist
640	foreach obj $dlist {
641	if {[info exists _obj2ovride($obj-raise)] && $_obj2ovride($obj-raise)} {
642	set i [lsearch -exact $dlist $obj]
643	if {$i >= 0} {
644	set dlist [lreplace $dlist $i $i]
645	lappend dlist $obj
646	}
647	}
648	}
649	return $dlist
650	}
651	-image {
652	if {[llength $args] != 2} {
653	error "wrong # args: should be \"get -image 3dview\|legend\""
654	}
655	switch -- [lindex $args end] {
656	3dview {
657	return $_image(plot)
658	}
659	legend {
660	return $_image(legend)
661	}
662	default {
663	error "bad image name \"[lindex $args end]\": should be 3dview or legend"
664	}
665	}
666	}
667	default {
668	error "bad option \"$op\": should be -objects or -image"
669	}
670	}
671	}
672
673	# ----------------------------------------------------------------------
674	# USAGE: delete ?<dataobj1> <dataobj2> ...?
675	#
676	# Clients use this to delete a dataobj from the plot. If no dataobjs
677	# are specified, then all dataobjs are deleted. No data objects are
678	# deleted. They are only removed from the display list.
679	#
680	# ----------------------------------------------------------------------
681	itcl::body Rappture::FlowvisViewer::delete {args} {
682	flow stop
683	if {[llength $args] == 0} {
684	set args $_dlist
685	}
686
687	# Delete all specified dataobjs
688	set changed 0
689	foreach dataobj $args {
690	set pos [lsearch -exact $_dlist $dataobj]
691	if { $pos >= 0 } {
692	foreach comp [$dataobj components] {
693	array unset _limits $dataobj-$comp-*
694	}
695	set _dlist [lreplace $_dlist $pos $pos]
696	array unset _obj2ovride $dataobj-*
697	array unset _obj2flow $dataobj-*
698	array unset _serverObjs $dataobj-*
699	array unset _obj2style $dataobj-*
700	set changed 1
701	}
702	}
703	# If anything changed, then rebuild the plot
704	if {$changed} {
705	# Repair the reverse lookup
706	foreach tf [array names _style2objs] {
707	set list {}
708	foreach {dataobj comp} $_style2objs($tf) break
709	if { [info exists _serverObjs($dataobj-$comp)] } {
710	lappend list $dataobj $comp
711	}
712	if { $list == "" } {
713	array unset _style2objs $tf
714	} else {
715	set _style2objs($tf) $list
716	}
717	}
718	$_dispatcher event -idle !rebuild
719	}
720	}
721
722	# ----------------------------------------------------------------------
723	# USAGE: scale ?<data1> <data2> ...?
724	#
725	# Sets the default limits for the overall plot according to the
726	# limits of the data for all of the given <data> objects. This
727	# accounts for all objects--even those not showing on the screen.
728	# Because of this, the limits are appropriate for all objects as
729	# the user scans through data in the ResultSet viewer.
730	# ----------------------------------------------------------------------
731	itcl::body Rappture::FlowvisViewer::scale {args} {
732	foreach val {xmin xmax ymin ymax vmin vmax} {
733	set _limits($val) ""
734	}
735	foreach obj $args {
736	foreach axis {x y v} {
737
738	foreach { min max } [$obj limits $axis] break
739
740	if {"" != $min && "" != $max} {
741	if {"" == $_limits(${axis}min)} {
742	set _limits(${axis}min) $min
743	set _limits(${axis}max) $max
744	} else {
745	if {$min < $_limits(${axis}min)} {
746	set _limits(${axis}min) $min
747	}
748	if {$max > $_limits(${axis}max)} {
749	set _limits(${axis}max) $max
750	}
751	}
752	}
753	}
754	}
755	}
756
757	# ----------------------------------------------------------------------
758	# USAGE: download coming
759	# USAGE: download controls <downloadCommand>
760	# USAGE: download now
761	#
762	# Clients use this method to create a downloadable representation
763	# of the plot. Returns a list of the form {ext string}, where
764	# "ext" is the file extension (indicating the type of data) and
765	# "string" is the data itself.
766	# ----------------------------------------------------------------------
767	itcl::body Rappture::FlowvisViewer::download {option args} {
768	set popup .flowvisviewerdownload
769	switch $option {
770	coming {
771	if {[catch {
772	blt::winop snap $itk_component(plotarea) $_image(download)
773	}]} {
774	$_image(download) configure -width 1 -height 1
775	$_image(download) put #000000
776	}
777	}
778	controls {
779	if {![winfo exists $popup]} {
780	# if we haven't created the popup yet, do it now
781	Rappture::Balloon $popup \
782	-title "[Rappture::filexfer::label downloadWord] as..."
783	set inner [$popup component inner]
784	label $inner.summary -text "" -anchor w
785	pack $inner.summary -side top
786	set img $_image(plot)
787	set res "[image width $img]x[image height $img]"
788	radiobutton $inner.draft -text "Image (draft $res)" \
789	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
790	-value draft
791	pack $inner.draft -anchor w
792
793	set res "640x480"
794	radiobutton $inner.medium -text "Movie (standard $res)" \
795	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
796	-value $res
797	pack $inner.medium -anchor w
798
799	set res "1024x768"
800	radiobutton $inner.high -text "Movie (high quality $res)" \
801	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
802	-value $res
803	pack $inner.high -anchor w
804	button $inner.go -text [Rappture::filexfer::label download] \
805	-command [lindex $args 0]
806	pack $inner.go -pady 4
807	$inner.draft select
808	} else {
809	set inner [$popup component inner]
810	}
811	set num [llength [get]]
812	set num [expr {($num == 1) ? "1 result" : "$num results"}]
813	set word [Rappture::filexfer::label downloadWord]
814	$inner.summary configure -text "$word $num in the following format:"
815	update idletasks ;# fix initial sizes
816	return $popup
817	}
818	now {
819	if { [winfo exists $popup] } {
820	$popup deactivate
821	}
822	switch -- $_downloadPopup(format) {
823	draft {
824	# Get the image data (as base64) and decode it back to
825	# binary. This is better than writing to temporary
826	# files. When we switch to the BLT picture image it
827	# won't be necessary to decode the image data.
828	set bytes [$_image(plot) data -format "jpeg -quality 100"]
829	set bytes [Rappture::encoding::decode -as b64 $bytes]
830	return [list .jpg $bytes]
831	}
832	"640x480" {
833	return [$this GetMovie [lindex $args 0] 640 480]
834	}
835	"1024x768" {
836	return [$this GetMovie [lindex $args 0] 1024 768]
837	}
838	default {
839	error "bad download format $_downloadPopup(format)"
840	}
841	}
842	}
843	default {
844	error "bad option \"$option\": should be coming, controls, now"
845	}
846	}
847	}
848
849	# ----------------------------------------------------------------------
850	# USAGE: Connect ?<host:port>,<host:port>...?
851	#
852	# Clients use this method to establish a connection to a new
853	# server, or to reestablish a connection to the previous server.
854	# Any existing connection is automatically closed.
855	# ----------------------------------------------------------------------
856	itcl::body Rappture::FlowvisViewer::Connect {} {
857	set _hosts [GetServerList "nanovis"]
858	if { "" == $_hosts } {
859	return 0
860	}
861	set result [VisViewer::Connect $_hosts]
862	if { $result } {
863	set w [winfo width $itk_component(3dview)]
864	set h [winfo height $itk_component(3dview)]
865	EventuallyResize $w $h
866	}
867	return $result
868	}
869
870	#
871	# isconnected --
872	#
873	# Indicates if we are currently connected to the visualization server.
874	#
875	itcl::body Rappture::FlowvisViewer::isconnected {} {
876	return [VisViewer::IsConnected]
877	}
878
879	#
880	# disconnect --
881	#
882	itcl::body Rappture::FlowvisViewer::disconnect {} {
883	Disconnect
884	}
885
886	#
887	# sendto --
888	#
889	itcl::body Rappture::FlowvisViewer::sendto { bytes } {
890	SendBytes "$bytes\n"
891	}
892
893	#
894	# Disconnect --
895	#
896	# Clients use this method to disconnect from the current rendering
897	# server.
898	#
899	itcl::body Rappture::FlowvisViewer::Disconnect {} {
900	VisViewer::Disconnect
901
902	# disconnected -- no more data sitting on server
903	set _outbuf ""
904	array unset _serverObjs
905	set _sendobjs ""
906	}
907
908	#
909	# SendCmd
910	#
911	# Send commands off to the rendering server. If we're currently
912	# sending data objects to the server, buffer the commands to be
913	# sent later.
914	#
915	itcl::body Rappture::FlowvisViewer::SendCmd { string } {
916	if { $_buffering } {
917	append _outbuf $string "\n"
918	} else {
919	foreach line [split $string \n] {
920	SendEcho >>line $line
921	}
922	SendBytes "$string\n"
923	}
924	}
925
926	# ----------------------------------------------------------------------
927	# USAGE: SendDataObjs
928	#
929	# Used internally to send a series of volume objects off to the
930	# server. Sends each object, a little at a time, with updates in
931	# between so the interface doesn't lock up.
932	# ----------------------------------------------------------------------
933	itcl::body Rappture::FlowvisViewer::SendDataObjs {} {
934	blt::busy hold $itk_component(hull)
935	foreach dataobj $_sendobjs {
936	foreach comp [$dataobj components] {
937	# Send the data as one huge base64-encoded mess -- yuck!
938	set data [$dataobj blob $comp]
939	set nbytes [string length $data]
940	set extents [$dataobj extents $comp]
941
942	# I have a field. Is a vector field or a volume field?
943	if { $extents == 1 } {
944	set cmd "volume data follows $nbytes $dataobj-$comp\n"
945	} else {
946	set cmd [FlowCmd $dataobj $comp $nbytes $extents]
947	if { $cmd == "" } {
948	puts stderr "no command"
949	continue
950	}
951	}
952	f { ![SendBytes $cmd] } {
953	puts stderr "can't send"
954	return
955	}
956	if { ![SendBytes $data] } {
957	puts stderr "can't send"
958	return
959	}
960	NameTransferFunc $dataobj $comp
961	set _recvObjs($dataobj-$comp) 1
962	}
963	}
964	set _sendobjs ""
965	blt::busy release $itk_component(hull)
966
967	# Turn on buffering of commands to the server. We don't want to
968	# be preempted by a server disconnect/reconnect (which automatically
969	# generates a new call to Rebuild).
970	set _buffering 1
971
972	# activate the proper volume
973	set _first [lindex [get] 0]
974	if { "" != $_first } {
975	set axis [$_first hints updir]
976	if {"" != $axis} {
977	SendCmd "up $axis"
978	}
979
980	if 0 {
981	set location [$_first hints camera]
982	if { $location != "" } {
983	array set _view $location
984	}
985	set _settings($this-theta) $_view(theta)
986	set _settings($this-phi) $_view(phi)
987	set _settings($this-psi) $_view(psi)
988	set _settings($this-pan-x) $_view(pan-x)
989	set _settings($this-pan-y) $_view(pan-y)
990	set _settings($this-zoom) $_view(zoom)
991	set xyz [Euler2XYZ $_view(theta) $_view(phi) $_view(psi)]
992	SendCmd "camera angle $xyz"
993	PanCamera
994	SendCmd "camera zoom $_view(zoom)"
995	}
996	# The active transfer function is by default the first component of
997	# the first data object. This assumes that the data is always
998	# successfully transferred.
999	set comp [lindex [$_first components] 0]
1000	set _activeTf [lindex $_obj2style($_first-$comp) 0]
1001	}
1002
1003	SendCmd "flow reset"
1004
1005	# Actually write the commands to the server socket. If it fails, we don't
1006	# care. We're finished here.
1007	SendBytes $_outbuf;
1008	set _buffering 0; # Turn off buffering.
1009	set _outbuf ""; # Clear the buffer.
1010	}
1011
1012	# ----------------------------------------------------------------------
1013	# USAGE: SendTransferFuncs
1014	# ----------------------------------------------------------------------
1015	itcl::body Rappture::FlowvisViewer::SendTransferFuncs {} {
1016	if { $_activeTf == "" } {
1017	puts stderr "no active tf"
1018	return
1019	}
1020	set tf $_activeTf
1021	if { $_first == "" } {
1022	puts stderr "no first"
1023	return
1024	}
1025
1026	# Ensure that the global opacity and thickness settings (in the slider
1027	# settings widgets) are used for the active transfer-function. Update the
1028	# values in the _settings varible.
1029	set value $_settings($this-opacity)
1030	set opacity [expr { double($value) * 0.01 }]
1031	set _settings($this-$tf-opacity) $opacity
1032	set value $_settings($this-thickness)
1033	# Scale values between 0.00001 and 0.01000
1034	set thickness [expr {double($value) * 0.0001}]
1035	set _settings($this-$tf-thickness) $thickness
1036
1037	foreach key [array names _obj2style $_first-*] {
1038	if { [info exists _obj2style($key)] } {
1039	foreach tf $_obj2style($key) {
1040	ComputeTransferFunc $tf
1041	}
1042	}
1043	}
1044	EventuallyResizeLegend
1045	}
1046
1047	# ----------------------------------------------------------------------
1048	# USAGE: ReceiveImage -bytes $size -type $type -token $token
1049	#
1050	# Invoked automatically whenever the "image" command comes in from
1051	# the rendering server. Indicates that binary image data with the
1052	# specified <size> will follow.
1053	# ----------------------------------------------------------------------
1054	itcl::body Rappture::FlowvisViewer::ReceiveImage { args } {
1055	array set info {
1056	-token "???"
1057	-bytes 0
1058	-type image
1059	}
1060	array set info $args
1061	set bytes [ReceiveBytes $info(-bytes)]
1062	ReceiveEcho <<line "<read $info(-bytes) bytes"
1063	switch -- $info(-type) {
1064	"image" {
1065	$_image(plot) configure -data $bytes
1066	#puts stderr "image received [image width $_image(plot)] by [image height $_image(plot)]"
1067	}
1068	"print" {
1069	set tag $this-$info(-token)
1070	set _hardcopy($tag) $bytes
1071	}
1072	"movie" {
1073	set tag $this-$info(-token)
1074	set _hardcopy($tag) $bytes
1075	}
1076	default {
1077	puts stderr "unknown download type $info(-type)"
1078	}
1079	}
1080	}
1081
1082	#
1083	# ReceiveLegend --
1084	#
1085	# The procedure is the response from the render server to each "legend"
1086	# command. The server sends back a "legend" command invoked our
1087	# the slave interpreter. The purpose is to collect data of the image
1088	# representing the legend in the canvas. In addition, the isomarkers
1089	# of the active transfer function are displayed.
1090	#
1091	# I don't know is this is the right place to display the isomarkers.
1092	# I don't know all the different paths used to draw the plot. There's
1093	# "Rebuild", "add", etc.
1094	#
1095	itcl::body Rappture::FlowvisViewer::ReceiveLegend { tag vmin vmax size } {
1096	if { ![isconnected] } {
1097	return
1098	}
1099	#puts stderr "receive legend $tag $vmin $vmax $size"
1100	set bytes [ReceiveBytes $size]
1101	$_image(legend) configure -data $bytes
1102	ReceiveEcho <<line "<read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
1103
1104	set c $itk_component(legend)
1105	set w [winfo width $c]
1106	set h [winfo height $c]
1107	set lx 10
1108	# FIXME: I don't know what I have to do this for the 2D flow
1109	# example. Otherwise the canvas background is white.
1110	# I'll get to this when we add background changes into
1111	# nanvis.
1112	$c configure -background black
1113	set ly [expr {$h - 1}]
1114	if {"" == [$c find withtag transfunc]} {
1115	$c create image 10 10 -anchor nw \
1116	-image $_image(legend) -tags transfunc
1117	$c create text $lx $ly -anchor sw \
1118	-fill $itk_option(-plotforeground) -tags "limits vmin"
1119	$c create text [expr {$w-$lx}] $ly -anchor se \
1120	-fill $itk_option(-plotforeground) -tags "limits vmax"
1121	$c lower transfunc
1122	$c bind transfunc <ButtonRelease-1> \
1123	[itcl::code $this AddIsoMarker %x %y]
1124	}
1125	# Display the markers used by the active transfer function.
1126	set tf $_obj2style($tag)
1127	array set limits [limits $tf]
1128	$c itemconfigure vmin -text [format %.2g $limits(vmin)]
1129	$c coords vmin $lx $ly
1130
1131	$c itemconfigure vmax -text [format %.2g $limits(vmax)]
1132	$c coords vmax [expr {$w-$lx}] $ly
1133
1134	if { [info exists _isomarkers($tf)] } {
1135	foreach m $_isomarkers($tf) {
1136	$m visible yes
1137	}
1138	}
1139	}
1140
1141	#
1142	# ReceiveData --
1143	#
1144	# The procedure is the response from the render server to each "data
1145	# follows" command. The server sends back a "data" command invoked our
1146	# the slave interpreter. The purpose is to collect the min/max of the
1147	# volume sent to the render server. Since the client (flowvisviewer)
1148	# doesn't parse 3D data formats, we rely on the server (flowvis) to
1149	# tell us what the limits are. Once we've received the limits to all
1150	# the data we've sent (tracked by _recvObjs) we can then determine
1151	# what the transfer functions are for these # volumes.
1152	#
1153	# Note: There is a considerable tradeoff in having the server report
1154	# back what the data limits are. It means that much of the code
1155	# having to do with transfer-functions has to wait for the data
1156	# to come back, since the isomarkers are calculated based upon
1157	# the data limits. The client code is much messier because of
1158	# this. The alternative is to parse any of the 3D formats on the
1159	# client side.
1160	#
1161	itcl::body Rappture::FlowvisViewer::ReceiveData { args } {
1162	if { ![isconnected] } {
1163	return
1164	}
1165	# Arguments from server are name value pairs. Stuff them in an array.
1166	array set values $args
1167	set tag $values(tag)
1168	set parts [split $tag -]
1169	set dataobj [lindex $parts 0]
1170	set _serverObjs($tag) 0
1171	set _limits($tag-min) $values(min); # Minimum value of the volume.
1172	set _limits($tag-max) $values(max); # Maximum value of the volume.
1173	unset _recvObjs($tag)
1174	if { [array size _recvObjs] == 0 } {
1175	updatetransferfuncs
1176	}
1177	}
1178
1179	#
1180	# Rebuild --
1181	#
1182	# Called automatically whenever something changes that affects the data
1183	# in the widget. Clears any existing data and rebuilds the widget to
1184	# display new data.
1185	#
1186	itcl::body Rappture::FlowvisViewer::Rebuild {} {
1187
1188	# Hide all the isomarkers. Can't remove them. Have to remember the
1189	# settings since the user may have created/deleted/moved markers.
1190
1191	foreach tf [array names _isomarkers] {
1192	foreach m $_isomarkers($tf) {
1193	$m visible no
1194	}
1195	}
1196
1197	set _first ""
1198	# Turn on buffering of commands to the server. We don't want to
1199	# be preempted by a server disconnect/reconnect (which automatically
1200	# generates a new call to Rebuild).
1201	set _buffering 1
1202
1203	if { $_reset } {
1204	if 1 {
1205	# Tell the server the name of the tool, the version, and
1206	# dataset that we are rendering. Have to do it here because
1207	# we don't know what data objects are using the renderer until
1208	# be get here.
1209	global env
1210
1211	set info {}
1212	set user "???"
1213	if { [info exists env(USER)] } {
1214	set user $env(USER)
1215	}
1216	set session "???"
1217	if { [info exists env(SESSION)] } {
1218	set session $env(SESSION)
1219	}
1220	lappend info "hub" [exec hostname]
1221	lappend info "client" "flowvisviewer"
1222	lappend info "user" $user
1223	lappend info "session" $session
1224	SendCmd "clientinfo [list $info]"
1225	}
1226	set w [winfo width $itk_component(3dview)]
1227	set h [winfo height $itk_component(3dview)]
1228	$_arcball resize $w $h
1229	EventuallyResize $w $h
1230	}
1231	foreach dataobj [get] {
1232	foreach comp [$dataobj components] {
1233	# Send the data as one huge base64-encoded mess -- yuck!
1234	set data [$dataobj blob $comp]
1235	set nbytes [string length $data]
1236	if 1 {
1237	set info {}
1238	lappend info "tool_id" [$dataobj hints toolId]
1239	lappend info "tool_name" [$dataobj hints toolName]
1240	lappend info "tool_version" [$dataobj hints toolRevision]
1241	lappend info "tool_title" [$dataobj hints toolTitle]
1242	lappend info "dataset_label" [$dataobj hints label]
1243	lappend info "dataset_size" $nbytes
1244	SendCmd "clientinfo [list $info]"
1245	}
1246	set extents [$dataobj extents $comp]
1247	# I have a field. Is a vector field or a volume field?
1248	if { $extents == 1 } {
1249	set cmd "volume data follows $nbytes $dataobj-$comp\n"
1250	} else {
1251	set cmd [FlowCmd $dataobj $comp $nbytes $extents]
1252	if { $cmd == "" } {
1253	puts stderr "no command"
1254	continue
1255	}
1256	}
1257	append _outbuf $cmd
1258	append _outbuf $data
1259	NameTransferFunc $dataobj $comp
1260	set _recvObjs($dataobj-$comp) 1
1261	}
1262	}
1263
1264	set _first [lindex [get] 0]
1265
1266	# Reset the camera and other view parameters
1267	FixSettings isosurface
1268	FixSettings grid
1269	FixSettings axes
1270	FixSettings volume
1271	FixSettings outline
1272	FixSettings light
1273	FixSettings transp
1274
1275	# nothing to send -- activate the proper volume
1276	if {"" != $_first} {
1277	FixSettings light
1278	FixSettings transp
1279	set axis [$_first hints updir]
1280	if {"" != $axis} {
1281	SendCmd "up $axis"
1282	}
1283	set location [$_first hints camera]
1284	if { $location != "" } {
1285	array set _view $location
1286	}
1287
1288	}
1289	set _settings($this-qw) $_view(qw)
1290	set _settings($this-qx) $_view(qx)
1291	set _settings($this-qy) $_view(qy)
1292	set _settings($this-qz) $_view(qz)
1293	set _settings($this-theta) $_view(theta)
1294	set _settings($this-phi) $_view(phi)
1295	set _settings($this-psi) $_view(psi)
1296	set _settings($this-pan-x) $_view(pan-x)
1297	set _settings($this-pan-y) $_view(pan-y)
1298	set _settings($this-zoom) $_view(zoom)
1299
1300	if {$_useArcball} {
1301	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1302	$_arcball quaternion $q
1303	SendCmd "camera orient $q"
1304	} else {
1305	set xyz [Euler2XYZ $_view(theta) $_view(phi) $_view(psi)]
1306	SendCmd "camera angle $xyz"
1307	}
1308	PanCamera
1309	SendCmd "camera zoom $_view(zoom)"
1310
1311	foreach dataobj [get] {
1312	foreach comp [$dataobj components] {
1313	NameTransferFunc $dataobj $comp
1314	}
1315	}
1316
1317	# nothing to send -- activate the proper ivol
1318	set _first [lindex [get] 0]
1319	if {"" != $_first} {
1320	set axis [$_first hints updir]
1321	if {"" != $axis} {
1322	SendCmd "up $axis"
1323	}
1324	set location [$_first hints camera]
1325	if { $location != "" } {
1326	array set _view $location
1327	}
1328	set comp [lindex [$_first components] 0]
1329	set _activeTf [lindex $_obj2style($_first-$comp) 0]
1330	}
1331
1332
1333	# sync the state of slicers
1334	set vols [CurrentVolumeIds -cutplanes]
1335	foreach axis {x y z} {
1336	SendCmd "cutplane state $_settings($this-${axis}cutplane) $axis $vols"
1337	set pos [expr {0.01*$_settings($this-${axis}cutposition)}]
1338	SendCmd "cutplane position $pos $axis $vols"
1339	}
1340	SendCmd "volume data state $_settings($this-volume)"
1341	EventuallyResizeLegend
1342
1343	# Actually write the commands to the server socket. If it fails, we don't
1344	# care. We're finished here.
1345	blt::busy hold $itk_component(hull)
1346	SendBytes $_outbuf
1347	blt::busy release $itk_component(hull)
1348	set _buffering 0; # Turn off buffering.
1349	set _outbuf ""; # Clear the buffer.
1350	}
1351
1352	# ----------------------------------------------------------------------
1353	# USAGE: CurrentVolumeIds ?-cutplanes?
1354	#
1355	# Returns a list of volume server IDs for the current volume being
1356	# displayed. This is normally a single ID, but it might be a list
1357	# of IDs if the current data object has multiple components.
1358	# ----------------------------------------------------------------------
1359	itcl::body Rappture::FlowvisViewer::CurrentVolumeIds {{what -all}} {
1360	return ""
1361	if { $_first == "" } {
1362	return
1363	}
1364	foreach key [array names _serverObjs -] {
1365	if {[string match $_first-* $key]} {
1366	array set style {
1367	-cutplanes 1
1368	}
1369	foreach {dataobj comp} [split $key -] break
1370	array set style [lindex [$dataobj components -style $comp] 0]
1371	if {$what != "-cutplanes" \|\| $style(-cutplanes)} {
1372	lappend rlist $_serverObjs($key)
1373	}
1374	}
1375	}
1376	return $rlist
1377	}
1378
1379	# ----------------------------------------------------------------------
1380	# USAGE: Zoom in
1381	# USAGE: Zoom out
1382	# USAGE: Zoom reset
1383	#
1384	# Called automatically when the user clicks on one of the zoom
1385	# controls for this widget. Changes the zoom for the current view.
1386	# ----------------------------------------------------------------------
1387	itcl::body Rappture::FlowvisViewer::Zoom {option} {
1388	switch -- $option {
1389	"in" {
1390	set _view(zoom) [expr {$_view(zoom)*1.25}]
1391	set _settings($this-zoom) $_view(zoom)
1392	}
1393	"out" {
1394	set _view(zoom) [expr {$_view(zoom)*0.8}]
1395	set _settings($this-zoom) $_view(zoom)
1396	}
1397	"reset" {
1398	array set _view {
1399	qw 0.853553
1400	qx -0.353553
1401	qy 0.353553
1402	qz 0.146447
1403	theta 45
1404	phi 45
1405	psi 0
1406	zoom 1.0
1407	pan-x 0
1408	pan-y 0
1409	}
1410	if { $_first != "" } {
1411	set location [$_first hints camera]
1412	if { $location != "" } {
1413	array set _view $location
1414	}
1415	}
1416	if {$_useArcball} {
1417	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1418	$_arcball quaternion $q
1419	SendCmd "camera orient $q"
1420	} else {
1421	set xyz [Euler2XYZ $_view(theta) $_view(phi) $_view(psi)]
1422	SendCmd "camera angle $xyz"
1423	}
1424	PanCamera
1425	set _settings($this-qw) $_view(qw)
1426	set _settings($this-qx) $_view(qx)
1427	set _settings($this-qy) $_view(qy)
1428	set _settings($this-qz) $_view(qz)
1429	set _settings($this-theta) $_view(theta)
1430	set _settings($this-phi) $_view(phi)
1431	set _settings($this-psi) $_view(psi)
1432	set _settings($this-pan-x) $_view(pan-x)
1433	set _settings($this-pan-y) $_view(pan-y)
1434	set _settings($this-zoom) $_view(zoom)
1435	}
1436	}
1437	SendCmd "camera zoom $_view(zoom)"
1438	}
1439
1440	itcl::body Rappture::FlowvisViewer::PanCamera {} {
1441	#set x [expr ($_view(pan-x)) / $_limits(xrange)]
1442	#set y [expr ($_view(pan-y)) / $_limits(yrange)]
1443	set x $_view(pan-x)
1444	set y $_view(pan-y)
1445	SendCmd "camera pan $x $y"
1446	}
1447
1448	# ----------------------------------------------------------------------
1449	# USAGE: Rotate click <x> <y>
1450	# USAGE: Rotate drag <x> <y>
1451	# USAGE: Rotate release <x> <y>
1452	#
1453	# Called automatically when the user clicks/drags/releases in the
1454	# plot area. Moves the plot according to the user's actions.
1455	# ----------------------------------------------------------------------
1456	itcl::body Rappture::FlowvisViewer::Rotate {option x y} {
1457	switch -- $option {
1458	click {
1459	$itk_component(3dview) configure -cursor fleur
1460	set _click(x) $x
1461	set _click(y) $y
1462	set _click(theta) $_view(theta)
1463	set _click(phi) $_view(phi)
1464	}
1465	drag {
1466	if {[array size _click] == 0} {
1467	Rotate click $x $y
1468	} else {
1469	set w [winfo width $itk_component(3dview)]
1470	set h [winfo height $itk_component(3dview)]
1471	if {$w <= 0 \|\| $h <= 0} {
1472	return
1473	}
1474
1475	if {[catch {
1476	# this fails sometimes for no apparent reason
1477	set dx [expr {double($x-$_click(x))/$w}]
1478	set dy [expr {double($y-$_click(y))/$h}]
1479	}]} {
1480	return
1481	}
1482
1483	if {$_useArcball} {
1484	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1485	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
1486	set _settings($this-qw) $_view(qw)
1487	set _settings($this-qx) $_view(qx)
1488	set _settings($this-qy) $_view(qy)
1489	set _settings($this-qz) $_view(qz)
1490	SendCmd "camera orient $q"
1491	} else {
1492	#
1493	# Rotate the camera in 3D
1494	#
1495	if {$_view(psi) > 90 \|\| $_view(psi) < -90} {
1496	# when psi is flipped around, theta moves backwards
1497	set dy [expr {-$dy}]
1498	}
1499	set theta [expr {$_view(theta) - $dy*180}]
1500	while {$theta < 0} { set theta [expr {$theta+180}] }
1501	while {$theta > 180} { set theta [expr {$theta-180}] }
1502
1503	if {abs($theta) >= 30 && abs($theta) <= 160} {
1504	set phi [expr {$_view(phi) - $dx*360}]
1505	while {$phi < 0} { set phi [expr {$phi+360}] }
1506	while {$phi > 360} { set phi [expr {$phi-360}] }
1507	set psi $_view(psi)
1508	} else {
1509	set phi $_view(phi)
1510	set psi [expr {$_view(psi) - $dx*360}]
1511	while {$psi < -180} { set psi [expr {$psi+360}] }
1512	while {$psi > 180} { set psi [expr {$psi-360}] }
1513	}
1514
1515	set _view(theta) $theta
1516	set _view(phi) $phi
1517	set _view(psi) $psi
1518	set xyz [Euler2XYZ $theta $phi $psi]
1519	set _settings($this-theta) $_view(theta)
1520	set _settings($this-phi) $_view(phi)
1521	set _settings($this-psi) $_view(psi)
1522	SendCmd "camera angle $xyz"
1523	}
1524
1525	set _click(x) $x
1526	set _click(y) $y
1527	}
1528	}
1529	release {
1530	Rotate drag $x $y
1531	$itk_component(3dview) configure -cursor ""
1532	catch {unset _click}
1533	}
1534	default {
1535	error "bad option \"$option\": should be click, drag, release"
1536	}
1537	}
1538	}
1539
1540	# ----------------------------------------------------------------------
1541	# USAGE: $this Pan click x y
1542	# $this Pan drag x y
1543	# $this Pan release x y
1544	#
1545	# Called automatically when the user clicks on one of the zoom
1546	# controls for this widget. Changes the zoom for the current view.
1547	# ----------------------------------------------------------------------
1548	itcl::body Rappture::FlowvisViewer::Pan {option x y} {
1549	# Experimental stuff
1550	set w [winfo width $itk_component(3dview)]
1551	set h [winfo height $itk_component(3dview)]
1552	if { $option == "set" } {
1553	set x [expr $x / double($w)]
1554	set y [expr $y / double($h)]
1555	set _view(pan-x) [expr $_view(pan-x) + $x]
1556	set _view(pan-y) [expr $_view(pan-y) + $y]
1557	PanCamera
1558	set _settings($this-pan-x) $_view(pan-x)
1559	set _settings($this-pan-y) $_view(pan-y)
1560	return
1561	}
1562	if { $option == "click" } {
1563	set _click(x) $x
1564	set _click(y) $y
1565	$itk_component(3dview) configure -cursor hand1
1566	}
1567	if { $option == "drag" \|\| $option == "release" } {
1568	set dx [expr ($_click(x) - $x)/double($w)]
1569	set dy [expr ($_click(y) - $y)/double($h)]
1570	set _click(x) $x
1571	set _click(y) $y
1572	set _view(pan-x) [expr $_view(pan-x) - $dx]
1573	set _view(pan-y) [expr $_view(pan-y) - $dy]
1574	PanCamera
1575	set _settings($this-pan-x) $_view(pan-x)
1576	set _settings($this-pan-y) $_view(pan-y)
1577	}
1578	if { $option == "release" } {
1579	$itk_component(3dview) configure -cursor ""
1580	}
1581	}
1582
1583
1584	# ----------------------------------------------------------------------
1585	# USAGE: Flow movie record\|stop\|play ?on\|off\|toggle?
1586	#
1587	# Called when the user clicks on the record, stop or play buttons
1588	# for flow visualization.
1589	# ----------------------------------------------------------------------
1590	itcl::body Rappture::FlowvisViewer::Flow {option args} {
1591	switch -- $option {
1592	movie {
1593	if {[llength $args] < 1 \|\| [llength $args] > 2} {
1594	error "wrong # args: should be \"Flow movie record\|stop\|play ?on\|off\|toggle?\""
1595	}
1596	set action [lindex $args 0]
1597	set op [lindex $args 1]
1598	if {$op == ""} { set op "on" }
1599
1600	set current [State $action]
1601	if {$op == "toggle"} {
1602	if {$current == "on"} {
1603	set op "off"
1604	} else {
1605	set op "on"
1606	}
1607	}
1608	set cmds ""
1609	switch -- $action {
1610	record {
1611	if { [$itk_component(rewind) cget -relief] != "sunken" } {
1612	$itk_component(rewind) configure -relief sunken
1613	$itk_component(stop) configure -relief raised
1614	$itk_component(play) configure -relief raised
1615	set inner $itk_component(settingsFrame)
1616	set frames [$inner.framecnt value]
1617	set _settings(nsteps) $frames
1618	set cmds "flow capture $frames"
1619	SendCmd $cmds
1620	}
1621	}
1622	stop {
1623	if { [$itk_component(stop) cget -relief] != "sunken" } {
1624	$itk_component(rewind) configure -relief raised
1625	$itk_component(stop) configure -relief sunken
1626	$itk_component(play) configure -relief raised
1627	_pause
1628	set cmds "flow reset"
1629	SendCmd $cmds
1630	}
1631	}
1632	play {
1633	if { [$itk_component(play) cget -relief] != "sunken" } {
1634	$itk_component(rewind) configure -relief raised
1635	$itk_component(stop) configure -relief raised
1636	$itk_component(play) configure \
1637	-image [Rappture::icon flow-pause] \
1638	-relief sunken
1639	bind $itk_component(play) <ButtonPress> \
1640	[itcl::code $this _pause]
1641	flow next
1642	}
1643	}
1644	default {
1645	error "bad option \"$option\": should be one of record\|stop\|play"
1646	}
1647
1648	}
1649	}
1650	default {
1651	error "bad option \"$option\": should be movie"
1652	}
1653	}
1654	}
1655
1656	# ----------------------------------------------------------------------
1657	# USAGE: Play
1658	#
1659	# ----------------------------------------------------------------------
1660	itcl::body Rappture::FlowvisViewer::Play {} {
1661	SendCmd "flow next"
1662	set delay [expr {int(ceil(pow($_settings(speed)/10.0+2,2.0)*15))}]
1663	$_dispatcher event -after $delay !play
1664	}
1665
1666	# ----------------------------------------------------------------------
1667	# USAGE: Pause
1668	#
1669	# Invoked when the user hits the "pause" button to stop playing the
1670	# current sequence of frames as a movie.
1671	# ----------------------------------------------------------------------
1672	itcl::body Rappture::FlowvisViewer::Pause {} {
1673	$_dispatcher cancel !play
1674
1675	# Toggle the button to "play" mode
1676	$itk_component(play) configure \
1677	-image [Rappture::icon flow-start] \
1678	-relief raised
1679	bind $itk_component(play) <ButtonPress> \
1680	[itcl::code $this Flow movie play toggle]
1681	}
1682
1683	# ----------------------------------------------------------------------
1684	# USAGE: FixSettings <what> ?<value>?
1685	#
1686	# Used internally to update rendering settings whenever parameters
1687	# change in the popup settings panel. Sends the new settings off
1688	# to the back end.
1689	# ----------------------------------------------------------------------
1690	itcl::body Rappture::FlowvisViewer::FixSettings {what {value ""}} {
1691	switch -- $what {
1692	light {
1693	if { $_first != "" } {
1694	set comp [lindex [$_first components] 0]
1695	set tag $_first-$comp
1696	set diffuse [expr {0.01*$_settings($this-light)}]
1697	set ambient [expr {1.0 - $diffuse}]
1698	set specularLevel 0.3
1699	set specularExp 90.0
1700	SendCmd "$tag configure -ambient $ambient -diffuse $diffuse -specularLevel $specularLevel -specularExp $specularExp"
1701	}
1702	}
1703	transp {
1704	if { $_first != "" } {
1705	set comp [lindex [$_first components] 0]
1706	set tag $_first-$comp
1707	set opacity [expr { 0.01 * double($_settings($this-transp)) }]
1708	SendCmd "$tag configure -opacity $opacity"
1709	}
1710	}
1711	opacity {
1712	if { $_first != "" && $_activeTf != "" } {
1713	set opacity [expr { 0.01 * double($_settings($this-opacity)) }]
1714	set tf $_activeTf
1715	set _settings($this-$tf-opacity) $opacity
1716	updatetransferfuncs
1717	}
1718	}
1719
1720	thickness {
1721	if { $_first != "" && $_activeTf != "" } {
1722	set val $_settings($this-thickness)
1723	# Scale values between 0.00001 and 0.01000
1724	set sval [expr {0.0001*double($val)}]
1725	set tf $_activeTf
1726	set _settings($this-$tf-thickness) $sval
1727	updatetransferfuncs
1728	}
1729	}
1730	"outline" {
1731	if { $_first != "" } {
1732	set comp [lindex [$_first components] 0]
1733	set tag $_first-$comp
1734	SendCmd "$tag configure -outline $_settings($this-outline)"
1735	}
1736	}
1737	"isosurface" {
1738	if { [isconnected] } {
1739	SendCmd "volume shading isosurface $_settings($this-isosurface)"
1740	}
1741	}
1742	"grid" {
1743	if { [isconnected] } {
1744	SendCmd "grid visible $_settings($this-grid)"
1745	}
1746	}
1747	"axes" {
1748	if { [isconnected] } {
1749	SendCmd "axis visible $_settings($this-axes)"
1750	}
1751	}
1752	"legend" {
1753	if { $_settings($this-legend) } {
1754	blt::table $itk_component(plotarea) \
1755	0,0 $itk_component(3dview) -fill both \
1756	1,0 $itk_component(legend) -fill x
1757	blt::table configure $itk_component(plotarea) r1 -resize none
1758	} else {
1759	blt::table forget $itk_component(legend)
1760	}
1761	}
1762	"volume" {
1763	if { $_first != "" } {
1764	set comp [lindex [$_first components] 0]
1765	set tag $_first-$comp
1766	SendCmd "$tag configure -volume $_settings($this-volume)"
1767	}
1768	}
1769	"xcutplane" - "ycutplane" - "zcutplane" {
1770	set axis [string range $what 0 0]
1771	set bool $_settings($this-$what)
1772	if { [isconnected] } {
1773	set vols [CurrentVolumeIds -cutplanes]
1774	SendCmd "cutplane state $bool $axis $vols"
1775	}
1776	if { $bool } {
1777	$itk_component(${axis}CutScale) configure -state normal \
1778	-troughcolor white
1779	} else {
1780	$itk_component(${axis}CutScale) configure -state disabled \
1781	-troughcolor grey82
1782	}
1783	}
1784	default {
1785	error "don't know how to fix $what"
1786	}
1787	}
1788	}
1789
1790	# ----------------------------------------------------------------------
1791	# USAGE: ResizeLegend
1792	#
1793	# Used internally to update the legend area whenever it changes size
1794	# or when the field changes. Asks the server to send a new legend
1795	# for the current field.
1796	# ----------------------------------------------------------------------
1797	itcl::body Rappture::FlowvisViewer::ResizeLegend {} {
1798	set _resizeLegendPending 0
1799	set lineht [font metrics $itk_option(-font) -linespace]
1800	set w [expr {$_width-20}]
1801	set h [expr {[winfo height $itk_component(legend)]-20-$lineht}]
1802
1803	if { $_first == "" } {
1804	return
1805	}
1806	set comp [lindex [$_first components] 0]
1807	set tag $_first-$comp
1808	#set _activeTf [lindex $_obj2style($tag) 0]
1809	if {$w > 0 && $h > 0 && "" != $_activeTf} {
1810	#SendCmd "legend $_activeTf $w $h"
1811	SendCmd "$tag legend $w $h"
1812	} else {
1813	# Can't do this as this will remove the items associated with the
1814	# isomarkers.
1815
1816	#$itk_component(legend) delete all
1817	}
1818	}
1819
1820	#
1821	# NameTransferFunc --
1822	#
1823	# Creates a transfer function name based on the <style> settings in the
1824	# library run.xml file. This placeholder will be used later to create
1825	# and send the actual transfer function once the data info has been sent
1826	# to us by the render server. [We won't know the volume limits until the
1827	# server parses the 3D data and sends back the limits via ReceiveData.]
1828	#
1829	# FIXME: The current way we generate transfer-function names completely
1830	# ignores the -markers option. The problem is that we are forced
1831	# to compute the name from an increasing complex set of values:
1832	# color, levels, marker, opacity. I think we're stuck doing it
1833	# now.
1834	#
1835	itcl::body Rappture::FlowvisViewer::NameTransferFunc { dataobj comp } {
1836	array set style {
1837	-color rainbow
1838	-levels 6
1839	-opacity 1.0
1840	-light 40
1841	-transp 50
1842	}
1843	array set style [lindex [$dataobj components -style $comp] 0]
1844	set _settings($this-light) $style(-light)
1845	set _settings($this-transp) $style(-transp)
1846	set _settings($this-opacity) [expr $style(-opacity) * 100]
1847	set tf "$style(-color):$style(-levels):$style(-opacity)"
1848	set _obj2style($dataobj-$comp) $tf
1849	lappend _style2objs($tf) $dataobj $comp
1850	return $tf
1851	}
1852
1853	#
1854	# ComputeTransferFunc --
1855	#
1856	# Computes and sends the transfer function to the render server. It's
1857	# assumed that the volume data limits are known and that the global
1858	# transfer-functions slider values have be setup. Both parts are
1859	# needed to compute the relative value (location) of the marker, and
1860	# the alpha map of the transfer function.
1861	#
1862	itcl::body Rappture::FlowvisViewer::ComputeTransferFunc { tf } {
1863	array set style {
1864	-color rainbow
1865	-levels 6
1866	-opacity 1.0
1867	-light 40
1868	-transp 50
1869	}
1870	set dataobj ""; set comp ""
1871	foreach {dataobj comp} $_style2objs($tf) break
1872	if { $dataobj == "" } {
1873	return 0
1874	}
1875	array set style [lindex [$dataobj components -style $comp] 0]
1876
1877
1878	# We have to parse the style attributes for a volume using this
1879	# transfer-function once. This sets up the initial isomarkers for the
1880	# transfer function. The user may add/delete markers, so we have to
1881	# maintain a list of markers for each transfer-function. We use the one
1882	# of the volumes (the first in the list) using the transfer-function as a
1883	# reference.
1884	#
1885	# FIXME: The current way we generate transfer-function names completely
1886	# ignores the -markers option. The problem is that we are forced
1887	# to compute the name from an increasing complex set of values:
1888	# color, levels, marker, opacity. I think the cow's out of the
1889	# barn on this one.
1890
1891	if { ![info exists _isomarkers($tf)] } {
1892	# Have to defer creation of isomarkers until we have data limits
1893	if { [info exists style(-markers)] } {
1894	ParseMarkersOption $tf $style(-markers)
1895	} else {
1896	ParseLevelsOption $tf $style(-levels)
1897	}
1898	}
1899	if {$style(-color) == "rainbow"} {
1900	set style(-color) "white:yellow:green:cyan:blue:magenta"
1901	}
1902	if { [info exists style(-nonuniformcolors)] } {
1903	foreach { value color } $style(-nonuniformcolors) {
1904	append cmap "$value [Color2RGB $color] "
1905	}
1906	} else {
1907	set clist [split $style(-color) :]
1908	set cmap "0.0 [Color2RGB white] "
1909	for {set i 0} {$i < [llength $clist]} {incr i} {
1910	set x [expr {double($i+1)/([llength $clist]+1)}]
1911	set color [lindex $clist $i]
1912	append cmap "$x [Color2RGB $color] "
1913	}
1914	append cmap "1.0 [Color2RGB $color]"
1915	}
1916	set tag $this-$tf
1917	if { ![info exists _settings($tag-opacity)] } {
1918	set _settings($tag-opacity) $style(-opacity)
1919	}
1920	set max $_settings($tag-opacity)
1921
1922	set isovalues {}
1923	foreach m $_isomarkers($tf) {
1924	lappend isovalues [$m relval]
1925	}
1926	# Sort the isovalues
1927	set isovalues [lsort -real $isovalues]
1928
1929	if { ![info exists _settings($tag-thickness)]} {
1930	set _settings($tag-thickness) 0.05
1931	}
1932	set delta $_settings($tag-thickness)
1933
1934	set first [lindex $isovalues 0]
1935	set last [lindex $isovalues end]
1936	set wmap ""
1937	if { $first == "" \|\| $first != 0.0 } {
1938	lappend wmap 0.0 0.0
1939	}
1940	foreach x $isovalues {
1941	set x1 [expr {$x-$delta-0.00001}]
1942	set x2 [expr {$x-$delta}]
1943	set x3 [expr {$x+$delta}]
1944	set x4 [expr {$x+$delta+0.00001}]
1945	if { $x1 < 0.0 } {
1946	set x1 0.0
1947	} elseif { $x1 > 1.0 } {
1948	set x1 1.0
1949	}
1950	if { $x2 < 0.0 } {
1951	set x2 0.0
1952	} elseif { $x2 > 1.0 } {
1953	set x2 1.0
1954	}
1955	if { $x3 < 0.0 } {
1956	set x3 0.0
1957	} elseif { $x3 > 1.0 } {
1958	set x3 1.0
1959	}
1960	if { $x4 < 0.0 } {
1961	set x4 0.0
1962	} elseif { $x4 > 1.0 } {
1963	set x4 1.0
1964	}
1965	# add spikes in the middle
1966	lappend wmap $x1 0.0
1967	lappend wmap $x2 $max
1968	lappend wmap $x3 $max
1969	lappend wmap $x4 0.0
1970	}
1971	if { $last == "" \|\| $last != 1.0 } {
1972	lappend wmap 1.0 0.0
1973	}
1974	SendCmd "transfunc define $tf { $cmap } { $wmap }\n"
1975	return [SendCmd "$dataobj-$comp configure -transferfunction $tf\n"]
1976	}
1977
1978	# ----------------------------------------------------------------------
1979	# CONFIGURATION OPTION: -plotbackground
1980	# ----------------------------------------------------------------------
1981	itcl::configbody Rappture::FlowvisViewer::plotbackground {
1982	if { [isconnected] } {
1983	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
1984	#fix this!
1985	#SendCmd "color background $r $g $b"
1986	}
1987	}
1988
1989	# ----------------------------------------------------------------------
1990	# CONFIGURATION OPTION: -plotforeground
1991	# ----------------------------------------------------------------------
1992	itcl::configbody Rappture::FlowvisViewer::plotforeground {
1993	if { [isconnected] } {
1994	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
1995	#fix this!
1996	#SendCmd "color background $r $g $b"
1997	}
1998	}
1999
2000	# ----------------------------------------------------------------------
2001	# CONFIGURATION OPTION: -plotoutline
2002	# ----------------------------------------------------------------------
2003	itcl::configbody Rappture::FlowvisViewer::plotoutline {
2004	# Must check if we are connected because this routine is called from the
2005	# class body when the -plotoutline itk_option is defined. At that point
2006	# the FlowvisViewer class constructor hasn't been called, so we can't
2007	# start sending commands to visualization server.
2008	if { [isconnected] } {
2009	if {"" == $itk_option(-plotoutline)} {
2010	SendCmd "volume outline state off"
2011	} else {
2012	SendCmd "volume outline state on"
2013	SendCmd "volume outline color [Color2RGB $itk_option(-plotoutline)]"
2014	}
2015	}
2016	}
2017
2018	#
2019	# The -levels option takes a single value that represents the number
2020	# of evenly distributed markers based on the current data range. Each
2021	# marker is a relative value from 0.0 to 1.0.
2022	#
2023	itcl::body Rappture::FlowvisViewer::ParseLevelsOption { tf levels } {
2024	set c $itk_component(legend)
2025	regsub -all "," $levels " " levels
2026	if {[string is int $levels]} {
2027	for {set i 1} { $i <= $levels } {incr i} {
2028	set x [expr {double($i)/($levels+1)}]
2029	set m [Rappture::IsoMarker \#auto $c $this $tf]
2030	$m relval $x
2031	lappend _isomarkers($tf) $m
2032	}
2033	} else {
2034	foreach x $levels {
2035	set m [Rappture::IsoMarker \#auto $c $this $tf]
2036	$m relval $x
2037	lappend _isomarkers($tf) $m
2038	}
2039	}
2040	}
2041
2042	#
2043	# The -markers option takes a list of zero or more values (the values
2044	# may be separated either by spaces or commas) that have the following
2045	# format:
2046	#
2047	# N% Percent of current total data range. Converted to
2048	# to a relative value between 0.0 and 1.0.
2049	# N Absolute value of marker. If the marker is outside of
2050	# the current range, it will be displayed on the outer
2051	# edge of the legends, but it range it represents will
2052	# not be seen.
2053	#
2054	itcl::body Rappture::FlowvisViewer::ParseMarkersOption { tf markers } {
2055	set c $itk_component(legend)
2056	regsub -all "," $markers " " markers
2057	foreach marker $markers {
2058	set n [scan $marker "%g%s" value suffix]
2059	if { $n == 2 && $suffix == "%" } {
2060	# ${n}% : Set relative value.
2061	set value [expr {$value * 0.01}]
2062	set m [Rappture::IsoMarker \#auto $c $this $tf]
2063	$m relval $value
2064	lappend _isomarkers($tf) $m
2065	} else {
2066	# ${n} : Set absolute value.
2067	set m [Rappture::IsoMarker \#auto $c $this $tf]
2068	$m absval $value
2069	lappend _isomarkers($tf) $m
2070	}
2071	}
2072	}
2073
2074	# ----------------------------------------------------------------------
2075	# USAGE: UndateTransferFuncs
2076	# ----------------------------------------------------------------------
2077	itcl::body Rappture::FlowvisViewer::updatetransferfuncs {} {
2078	$_dispatcher event -after 100 !send_transfunc
2079	}
2080
2081	itcl::body Rappture::FlowvisViewer::AddIsoMarker { x y } {
2082	if { $_activeTf == "" } {
2083	error "active transfer function isn't set"
2084	}
2085	set tf $_activeTf
2086	set c $itk_component(legend)
2087	set m [Rappture::IsoMarker \#auto $c $this $tf]
2088	set w [winfo width $c]
2089	$m relval [expr {double($x-10)/($w-20)}]
2090	lappend _isomarkers($tf) $m
2091	updatetransferfuncs
2092	return 1
2093	}
2094
2095	itcl::body Rappture::FlowvisViewer::rmdupmarker { marker x } {
2096	set tf [$marker transferfunc]
2097	set bool 0
2098	if { [info exists _isomarkers($tf)] } {
2099	set list {}
2100	set marker [namespace tail $marker]
2101	foreach m $_isomarkers($tf) {
2102	set sx [$m screenpos]
2103	if { $m != $marker } {
2104	if { $x >= ($sx-3) && $x <= ($sx+3) } {
2105	$marker relval [$m relval]
2106	itcl::delete object $m
2107	bell
2108	set bool 1
2109	continue
2110	}
2111	}
2112	lappend list $m
2113	}
2114	set _isomarkers($tf) $list
2115	updatetransferfuncs
2116	}
2117	return $bool
2118	}
2119
2120	itcl::body Rappture::FlowvisViewer::overmarker { marker x } {
2121	set tf [$marker transferfunc]
2122	if { [info exists _isomarkers($tf)] } {
2123	set marker [namespace tail $marker]
2124	foreach m $_isomarkers($tf) {
2125	set sx [$m screenpos]
2126	if { $m != $marker } {
2127	set bool [expr { $x >= ($sx-3) && $x <= ($sx+3) }]
2128	$m activate $bool
2129	}
2130	}
2131	}
2132	return ""
2133	}
2134
2135	itcl::body Rappture::FlowvisViewer::limits { tf } {
2136	set _limits(vmin) 0.0
2137	set _limits(vmax) 1.0
2138	if { ![info exists _style2objs($tf)] } {
2139	puts stderr "no style2objs for $tf tf=($tf)"
2140	return [array get _limits]
2141	}
2142	set min ""; set max ""
2143	foreach {dataobj comp} $_style2objs($tf) {
2144	set tag $dataobj-$comp
2145	if { ![info exists _serverObjs($tag)] } {
2146	puts stderr "$tag not in serverObjs?"
2147	continue
2148	}
2149	if { ![info exists _limits($tag-min)] } {
2150	puts stderr "$tag no min?"
2151	continue
2152	}
2153	if { $min == "" \|\| $min > $_limits($tag-min) } {
2154	set min $_limits($tag-min)
2155	}
2156	if { $max == "" \|\| $max < $_limits($tag-max) } {
2157	set max $_limits($tag-max)
2158	}
2159	}
2160	if { $min != "" } {
2161	set _limits(vmin) $min
2162	}
2163	if { $max != "" } {
2164	set _limits(vmax) $max
2165	}
2166	return [array get _limits]
2167	}
2168
2169	itcl::body Rappture::FlowvisViewer::BuildViewTab {} {
2170	foreach { key value } {
2171	grid 0
2172	axes 0
2173	outline 1
2174	volume 1
2175	legend 1
2176	particles 1
2177	lic 1
2178	} {
2179	set _settings($this-$key) $value
2180	}
2181
2182	set fg [option get $itk_component(hull) font Font]
2183	#set bfg [option get $itk_component(hull) boldFont Font]
2184
2185	set inner [$itk_component(main) insert end \
2186	-title "View Settings" \
2187	-icon [Rappture::icon wrench]]
2188	$inner configure -borderwidth 4
2189
2190	set ::Rappture::FlowvisViewer::_settings($this-isosurface) 0
2191	checkbutton $inner.isosurface \
2192	-text "Isosurface shading" \
2193	-variable [itcl::scope _settings($this-isosurface)] \
2194	-command [itcl::code $this FixSettings isosurface] \
2195	-font "Arial 9"
2196
2197	checkbutton $inner.axes \
2198	-text "Axes" \
2199	-variable [itcl::scope _settings($this-axes)] \
2200	-command [itcl::code $this FixSettings axes] \
2201	-font "Arial 9"
2202
2203	checkbutton $inner.grid \
2204	-text "Grid" \
2205	-variable [itcl::scope _settings($this-grid)] \
2206	-command [itcl::code $this FixSettings grid] \
2207	-font "Arial 9"
2208
2209	checkbutton $inner.outline \
2210	-text "Outline" \
2211	-variable [itcl::scope _settings($this-outline)] \
2212	-command [itcl::code $this FixSettings outline] \
2213	-font "Arial 9"
2214
2215	checkbutton $inner.legend \
2216	-text "Legend" \
2217	-variable [itcl::scope _settings($this-legend)] \
2218	-command [itcl::code $this FixSettings legend] \
2219	-font "Arial 9"
2220
2221	checkbutton $inner.volume \
2222	-text "Volume" \
2223	-variable [itcl::scope _settings($this-volume)] \
2224	-command [itcl::code $this FixSettings volume] \
2225	-font "Arial 9"
2226
2227	checkbutton $inner.particles \
2228	-text "Particles" \
2229	-variable [itcl::scope _settings($this-particles)] \
2230	-command [itcl::code $this FixSettings particles] \
2231	-font "Arial 9"
2232
2233	checkbutton $inner.lic \
2234	-text "Lic" \
2235	-variable [itcl::scope _settings($this-lic)] \
2236	-command [itcl::code $this FixSettings lic] \
2237	-font "Arial 9"
2238
2239	frame $inner.frame
2240
2241	blt::table $inner \
2242	0,0 $inner.axes -columnspan 2 -anchor w \
2243	1,0 $inner.grid -columnspan 2 -anchor w \
2244	2,0 $inner.outline -columnspan 2 -anchor w \
2245	3,0 $inner.volume -columnspan 2 -anchor w \
2246	4,0 $inner.legend -columnspan 2 -anchor w
2247
2248	bind $inner <Map> [itcl::code $this GetFlowInfo $inner]
2249
2250	blt::table configure $inner r* -resize none
2251	blt::table configure $inner r5 -resize expand
2252	}
2253
2254	itcl::body Rappture::FlowvisViewer::BuildVolumeTab {} {
2255	foreach { key value } {
2256	light 40
2257	transp 50
2258	opacity 100
2259	thickness 350
2260	} {
2261	set _settings($this-$key) $value
2262	}
2263
2264	set inner [$itk_component(main) insert end \
2265	-title "Volume Settings" \
2266	-icon [Rappture::icon volume-on]]
2267	$inner configure -borderwidth 4
2268
2269	set fg [option get $itk_component(hull) font Font]
2270	#set bfg [option get $itk_component(hull) boldFont Font]
2271
2272	checkbutton $inner.vol -text "Show volume" -font $fg \
2273	-text "Volume" \
2274	-variable [itcl::scope _settings($this-volume)] \
2275	-command [itcl::code $this FixSettings volume] \
2276	-font "Arial 9"
2277
2278	label $inner.shading -text "Shading:" -font $fg
2279
2280	label $inner.dim -text "Glow" -font $fg
2281	::scale $inner.light -from 0 -to 100 -orient horizontal \
2282	-variable [itcl::scope _settings($this-light)] \
2283	-width 10 \
2284	-showvalue off -command [itcl::code $this FixSettings light]
2285	label $inner.bright -text "Surface" -font $fg
2286
2287	label $inner.fog -text "Clear" -font $fg
2288	::scale $inner.transp -from 0 -to 100 -orient horizontal \
2289	-variable [itcl::scope _settings($this-transp)] \
2290	-width 10 \
2291	-showvalue off -command [itcl::code $this FixSettings transp]
2292	label $inner.plastic -text "Opaque" -font $fg
2293
2294	label $inner.clear -text "Clear" -font $fg
2295	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2296	-variable [itcl::scope _settings($this-opacity)] \
2297	-width 10 \
2298	-showvalue off -command [itcl::code $this FixSettings opacity]
2299	label $inner.opaque -text "Opaque" -font $fg
2300
2301	label $inner.thin -text "Thin" -font $fg
2302	::scale $inner.thickness -from 0 -to 1000 -orient horizontal \
2303	-variable [itcl::scope _settings($this-thickness)] \
2304	-width 10 \
2305	-showvalue off -command [itcl::code $this FixSettings thickness]
2306	label $inner.thick -text "Thick" -font $fg
2307
2308	blt::table $inner \
2309	0,0 $inner.vol -columnspan 4 -anchor w -pady 2 \
2310	1,0 $inner.shading -columnspan 4 -anchor w -pady {10 2} \
2311	2,0 $inner.dim -anchor e -pady 2 \
2312	2,1 $inner.light -columnspan 2 -pady 2 -fill x \
2313	2,3 $inner.bright -anchor w -pady 2 \
2314	3,0 $inner.fog -anchor e -pady 2 \
2315	3,1 $inner.transp -columnspan 2 -pady 2 -fill x \
2316	3,3 $inner.plastic -anchor w -pady 2 \
2317	4,0 $inner.thin -anchor e -pady 2 \
2318	4,1 $inner.thickness -columnspan 2 -pady 2 -fill x\
2319	4,3 $inner.thick -anchor w -pady 2
2320
2321	if 0 {
2322	0,0 $inner.dim -anchor e -pady 2 \
2323	0,1 $inner.light -columnspan 2 -pady 2 \
2324	0,3 $inner.bright -anchor w -pady 2 \
2325	1,0 $inner.fog -anchor e -pady 2 \
2326	1,1 $inner.transp -columnspan 2 -pady 2 \
2327	1,3 $inner.plastic -anchor w -pady 2 \
2328	2,0 $inner.clear -anchor e -pady 2 \
2329	2,1 $inner.opacity -columnspan 2 -pady 2 \
2330	2,3 $inner.opaque -anchor w -pady 2 \
2331	3,0 $inner.thin -anchor e -pady 2 \
2332	3,1 $inner.thickness -columnspan 2 -pady 2 \
2333	3,3 $inner.thick -anchor w -pady 2
2334	}
2335	blt::table configure $inner c0 c1 c3 r* -resize none
2336	blt::table configure $inner r5 -resize expand
2337	}
2338
2339	itcl::body Rappture::FlowvisViewer::BuildCutplanesTab {} {
2340	set inner [$itk_component(main) insert end \
2341	-title "Cutplane Settings" \
2342	-icon [Rappture::icon cutbutton]]
2343	$inner configure -borderwidth 4
2344
2345	# X-value slicer...
2346	itk_component add xCutButton {
2347	Rappture::PushButton $inner.xbutton \
2348	-onimage [Rappture::icon x-cutplane] \
2349	-offimage [Rappture::icon x-cutplane] \
2350	-command [itcl::code $this FixSettings xcutplane] \
2351	-variable [itcl::scope _settings($this-xcutplane)]
2352	}
2353	Rappture::Tooltip::for $itk_component(xCutButton) \
2354	"Toggle the X cut plane on/off"
2355
2356	itk_component add xCutScale {
2357	::scale $inner.xval -from 100 -to 0 \
2358	-width 10 -orient vertical -showvalue off \
2359	-borderwidth 1 -highlightthickness 0 \
2360	-command [itcl::code $this Slice move x] \
2361	-variable [itcl::scope _settings($this-xcutposition)]
2362	} {
2363	usual
2364	ignore -borderwidth -highlightthickness
2365	}
2366	# Set the default cutplane value before disabling the scale.
2367	$itk_component(xCutScale) set 50
2368	$itk_component(xCutScale) configure -state disabled
2369	Rappture::Tooltip::for $itk_component(xCutScale) \
2370	"@[itcl::code $this SlicerTip x]"
2371
2372	# Y-value slicer...
2373	itk_component add yCutButton {
2374	Rappture::PushButton $inner.ybutton \
2375	-onimage [Rappture::icon y-cutplane] \
2376	-offimage [Rappture::icon y-cutplane] \
2377	-command [itcl::code $this FixSettings ycutplane] \
2378	-variable [itcl::scope _settings($this-ycutplane)]
2379	}
2380	Rappture::Tooltip::for $itk_component(yCutButton) \
2381	"Toggle the Y cut plane on/off"
2382
2383	itk_component add yCutScale {
2384	::scale $inner.yval -from 100 -to 0 \
2385	-width 10 -orient vertical -showvalue off \
2386	-borderwidth 1 -highlightthickness 0 \
2387	-command [itcl::code $this Slice move y] \
2388	-variable [itcl::scope _settings($this-ycutposition)]
2389	} {
2390	usual
2391	ignore -borderwidth -highlightthickness
2392	}
2393	Rappture::Tooltip::for $itk_component(yCutScale) \
2394	"@[itcl::code $this SlicerTip y]"
2395	# Set the default cutplane value before disabling the scale.
2396	$itk_component(yCutScale) set 50
2397	$itk_component(yCutScale) configure -state disabled
2398
2399	# Z-value slicer...
2400	itk_component add zCutButton {
2401	Rappture::PushButton $inner.zbutton \
2402	-onimage [Rappture::icon z-cutplane] \
2403	-offimage [Rappture::icon z-cutplane] \
2404	-command [itcl::code $this FixSettings zcutplane] \
2405	-variable [itcl::scope _settings($this-zcutplane)]
2406	}
2407	Rappture::Tooltip::for $itk_component(zCutButton) \
2408	"Toggle the Z cut plane on/off"
2409
2410	itk_component add zCutScale {
2411	::scale $inner.zval -from 100 -to 0 \
2412	-width 10 -orient vertical -showvalue off \
2413	-borderwidth 1 -highlightthickness 0 \
2414	-command [itcl::code $this Slice move z] \
2415	-variable [itcl::scope _settings($this-zcutposition)]
2416	} {
2417	usual
2418	ignore -borderwidth -highlightthickness
2419	}
2420	$itk_component(zCutScale) set 50
2421	$itk_component(zCutScale) configure -state disabled
2422	#$itk_component(zCutScale) configure -state disabled
2423	Rappture::Tooltip::for $itk_component(zCutScale) \
2424	"@[itcl::code $this SlicerTip z]"
2425
2426	blt::table $inner \
2427	1,1 $itk_component(xCutButton) \
2428	1,2 $itk_component(yCutButton) \
2429	1,3 $itk_component(zCutButton) \
2430	0,1 $itk_component(xCutScale) \
2431	0,2 $itk_component(yCutScale) \
2432	0,3 $itk_component(zCutScale) \
2433
2434	blt::table configure $inner r0 r1 c* -resize none
2435	blt::table configure $inner r2 c4 -resize expand
2436	blt::table configure $inner c0 -width 2
2437	blt::table configure $inner c1 c2 c3 -padx 2
2438	}
2439
2440	itcl::body Rappture::FlowvisViewer::BuildCameraTab {} {
2441	set inner [$itk_component(main) insert end \
2442	-title "Camera Settings" \
2443	-icon [Rappture::icon camera]]
2444	$inner configure -borderwidth 4
2445
2446	if {$_useArcball} {
2447	set labels { qw qx qy qz pan-x pan-y zoom }
2448	} else {
2449	set labels { phi theta psi pan-x pan-y zoom }
2450	}
2451	set row 0
2452	foreach tag $labels {
2453	label $inner.${tag}label -text $tag -font "Arial 9"
2454	entry $inner.${tag} -font "Arial 9" -bg white \
2455	-textvariable [itcl::scope _settings($this-$tag)]
2456	bind $inner.${tag} <KeyPress-Return> \
2457	[itcl::code $this camera set ${tag}]
2458	blt::table $inner \
2459	$row,0 $inner.${tag}label -anchor e -pady 2 \
2460	$row,1 $inner.${tag} -anchor w -pady 2
2461	blt::table configure $inner r$row -resize none
2462	incr row
2463	}
2464	blt::table configure $inner c0 c1 -resize none
2465	blt::table configure $inner c2 -resize expand
2466	blt::table configure $inner r$row -resize expand
2467	}
2468
2469	itcl::body Rappture::FlowvisViewer::GetFlowInfo { w } {
2470	set flowobj ""
2471	foreach key [array names _obj2flow] {
2472	set flowobj $_obj2flow($key)
2473	break
2474	}
2475	if { $flowobj == "" } {
2476	return
2477	}
2478	if { [winfo exists $w.frame] } {
2479	destroy $w.frame
2480	}
2481	set inner [frame $w.frame]
2482	blt::table $w \
2483	5,0 $inner -fill both -columnspan 2 -anchor nw
2484	array set hints [$flowobj hints]
2485	checkbutton $inner.showstreams -text "Streams Plane" \
2486	-variable [itcl::scope _settings($this-streams)] \
2487	-command [itcl::code $this streams $key $hints(name)] \
2488	-font "Arial 9"
2489	Rappture::Tooltip::for $inner.showstreams $hints(description)
2490
2491	checkbutton $inner.showarrows -text "Arrows" \
2492	-variable [itcl::scope _settings($this-arrows)] \
2493	-command [itcl::code $this arrows $key $hints(name)] \
2494	-font "Arial 9"
2495
2496	label $inner.particles -text "Particles" -font "Arial 9 bold"
2497	label $inner.boxes -text "Boxes" -font "Arial 9 bold"
2498
2499	blt::table $inner \
2500	1,0 $inner.showstreams -anchor w \
2501	2,0 $inner.showarrows -anchor w
2502	blt::table configure $inner c0 c1 -resize none
2503	blt::table configure $inner c2 -resize expand
2504
2505	set row 3
2506	set particles [$flowobj particles]
2507	if { [llength $particles] > 0 } {
2508	blt::table $inner $row,0 $inner.particles -anchor w
2509	incr row
2510	}
2511	foreach part $particles {
2512	array unset info
2513	array set info $part
2514	set name $info(name)
2515	if { ![info exists _settings($this-particles-$name)] } {
2516	set _settings($this-particles-$name) $info(hide)
2517	}
2518	checkbutton $inner.part$row -text $info(label) \
2519	-variable [itcl::scope _settings($this-particles-$name)] \
2520	-onvalue 0 -offvalue 1 \
2521	-command [itcl::code $this particles $key $name] \
2522	-font "Arial 9"
2523	Rappture::Tooltip::for $inner.part$row $info(description)
2524	blt::table $inner $row,0 $inner.part$row -anchor w
2525	if { !$_settings($this-particles-$name) } {
2526	$inner.part$row select
2527	}
2528	incr row
2529	}
2530	set boxes [$flowobj boxes]
2531	if { [llength $boxes] > 0 } {
2532	blt::table $inner $row,0 $inner.boxes -anchor w
2533	incr row
2534	}
2535	foreach box $boxes {
2536	array unset info
2537	array set info $box
2538	set name $info(name)
2539	if { ![info exists _settings($this-box-$name)] } {
2540	set _settings($this-box-$name) $info(hide)
2541	}
2542	checkbutton $inner.box$row -text $info(label) \
2543	-variable [itcl::scope _settings($this-box-$name)] \
2544	-onvalue 0 -offvalue 1 \
2545	-command [itcl::code $this box $key $name] \
2546	-font "Arial 9"
2547	Rappture::Tooltip::for $inner.box$row $info(description)
2548	blt::table $inner $row,0 $inner.box$row -anchor w
2549	if { !$_settings($this-box-$name) } {
2550	$inner.box$row select
2551	}
2552	incr row
2553	}
2554	blt::table configure $inner r* -resize none
2555	blt::table configure $inner r$row -resize expand
2556	blt::table configure $inner c3 -resize expand
2557	event generate [winfo parent [winfo parent $w]] <Configure>
2558	}
2559
2560	itcl::body Rappture::FlowvisViewer::particles { tag name } {
2561	set bool $_settings($this-particles-$name)
2562	SendCmd "$tag particles configure {$name} -hide $bool"
2563	}
2564
2565	itcl::body Rappture::FlowvisViewer::box { tag name } {
2566	set bool $_settings($this-box-$name)
2567	SendCmd "$tag box configure {$name} -hide $bool"
2568	}
2569
2570	itcl::body Rappture::FlowvisViewer::streams { tag name } {
2571	set bool $_settings($this-streams)
2572	SendCmd "$tag configure -slice $bool"
2573	}
2574
2575	itcl::body Rappture::FlowvisViewer::arrows { tag name } {
2576	set bool $_settings($this-arrows)
2577	SendCmd "$tag configure -arrows $bool"
2578	}
2579
2580	# ----------------------------------------------------------------------
2581	# USAGE: Slice move x\|y\|z <newval>
2582	#
2583	# Called automatically when the user drags the slider to move the
2584	# cut plane that slices 3D data. Gets the current value from the
2585	# slider and moves the cut plane to the appropriate point in the
2586	# data set.
2587	# ----------------------------------------------------------------------
2588	itcl::body Rappture::FlowvisViewer::Slice {option args} {
2589	switch -- $option {
2590	move {
2591	if {[llength $args] != 2} {
2592	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2593	}
2594	set axis [lindex $args 0]
2595	set newval [lindex $args 1]
2596	set newpos [expr {0.01*$newval}]
2597
2598	# show the current value in the readout
2599
2600	set ids [CurrentVolumeIds -cutplanes]
2601	SendCmd "cutplane position $newpos $axis $ids"
2602	}
2603	default {
2604	error "bad option \"$option\": should be axis, move, or volume"
2605	}
2606	}
2607	}
2608
2609	# ----------------------------------------------------------------------
2610	# USAGE: SlicerTip <axis>
2611	#
2612	# Used internally to generate a tooltip for the x/y/z slicer controls.
2613	# Returns a message that includes the current slicer value.
2614	# ----------------------------------------------------------------------
2615	itcl::body Rappture::FlowvisViewer::SlicerTip {axis} {
2616	set val [$itk_component(${axis}CutScale) get]
2617	# set val [expr {0.01*($val-50)
2618	# *($_limits(${axis}max)-$_limits(${axis}min))
2619	# + 0.5*($_limits(${axis}max)+$_limits(${axis}min))}]
2620	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2621	}
2622
2623
2624	itcl::body Rappture::FlowvisViewer::Resize {} {
2625	SendCmd "screen $_width $_height"
2626	set _resizePending 0
2627	}
2628
2629	itcl::body Rappture::FlowvisViewer::EventuallyResize { w h } {
2630	set _width $w
2631	set _height $h
2632	$_arcball resize $w $h
2633	if { !$_resizePending } {
2634	$_dispatcher event -after 200 !resize
2635	set _resizePending 1
2636	}
2637	}
2638
2639	itcl::body Rappture::FlowvisViewer::EventuallyResizeLegend {} {
2640	if { !$_resizeLegendPending } {
2641	$_dispatcher event -after 100 !legend
2642	set _resizeLegendPending 1
2643	}
2644	}
2645
2646	itcl::body Rappture::FlowvisViewer::EventuallyGoto { nSteps } {
2647	set _flow(goto) $nSteps
2648	if { !$_gotoPending } {
2649	$_dispatcher event -after 1000 !goto
2650	set _gotoPending 1
2651	}
2652	}
2653
2654	# camera --
2655	itcl::body Rappture::FlowvisViewer::camera {option args} {
2656	switch -- $option {
2657	"show" {
2658	puts [array get _view]
2659	}
2660	"set" {
2661	set who [lindex $args 0]
2662	set x $_settings($this-$who)
2663	set code [catch { string is double $x } result]
2664	if { $code != 0 \|\| !$result } {
2665	set _settings($this-$who) $_view($who)
2666	return
2667	}
2668	switch -- $who {
2669	"pan-x" - "pan-y" {
2670	set _view($who) $_settings($this-$who)
2671	PanCamera
2672	}
2673	"phi" - "theta" - "psi" {
2674	set _view($who) $_settings($this-$who)
2675	set xyz [Euler2XYZ $_view(theta) $_view(phi) $_view(psi)]
2676	SendCmd "camera angle $xyz"
2677	if {$_useArcball} {
2678	$_arcball euler [list [expr {-[lindex $xyz 2]}] [expr {-[lindex $xyz 1]}] [expr {-[lindex $xyz 0]}]]
2679	set q [$_arcball quaternion]
2680	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
2681	set _settings($this-qw) $_view(qw)
2682	set _settings($this-qx) $_view(qx)
2683	set _settings($this-qy) $_view(qy)
2684	set _settings($this-qz) $_view(qz)
2685	}
2686	}
2687	"qx" - "qy" - "qz" - "qw" {
2688	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2689	$_arcball quaternion $q
2690	SendCmd "camera orient $q"
2691	}
2692	"zoom" {
2693	set _view($who) $_settings($this-$who)
2694	SendCmd "camera zoom $_view(zoom)"
2695	}
2696	}
2697	}
2698	}
2699	}
2700
2701	itcl::body Rappture::FlowvisViewer::FlowCmd { dataobj comp nbytes extents } {
2702	set tag "$dataobj-$comp"
2703	if { ![info exists _obj2flow($tag)] } {
2704	append cmd "flow add $tag\n"
2705	append cmd "$tag data follows $nbytes $extents\n"
2706	return $cmd
2707	}
2708	set flowobj $_obj2flow($tag)
2709	if { $flowobj == "" } {
2710	puts stderr "no flowobj"
2711	return ""
2712	}
2713	set cmd {}
2714	append cmd "if {\[flow exists $tag\]} {flow delete $tag}\n"
2715	array set info [$flowobj hints]
2716	set _settings($this-volume) $info(volume)
2717	set _settings($this-outline) $info(outline)
2718	set _settings($this-arrows) $info(arrows)
2719	set _settings($this-duration) $info(duration)
2720	$itk_component(speed) value $info(speed)
2721	append cmd "flow add $tag"
2722	append cmd " -position $info(position)"
2723	append cmd " -axis $info(axis)"
2724	append cmd " -volume $info(volume)"
2725	append cmd " -outline $info(outline)"
2726	append cmd " -slice $info(streams)"
2727	append cmd " -arrows $info(arrows)\n"
2728	foreach part [$flowobj particles] {
2729	array unset info
2730	array set info $part
2731	set color [Color2RGB $info(color)]
2732	append cmd "$tag particles add $info(name)"
2733	append cmd " -position $info(position)"
2734	append cmd " -hide $info(hide)"
2735	append cmd " -axis $info(axis)"
2736	append cmd " -color {$color}"
2737	append cmd " -size $info(size)\n"
2738	}
2739	foreach box [$flowobj boxes] {
2740	array unset info
2741	set info(corner1) ""
2742	set info(corner2) ""
2743	array set info $box
2744	if { $info(corner1) == "" \|\| $info(corner2) == "" } {
2745	continue
2746	}
2747	set color [Color2RGB $info(color)]
2748	append cmd "$tag box add $info(name)"
2749	append cmd " -color {$color}"
2750	append cmd " -hide $info(hide)"
2751	append cmd " -linewidth $info(linewidth) "
2752	append cmd " -corner1 {$info(corner1)} "
2753	append cmd " -corner2 {$info(corner2)}\n"
2754	}
2755	append cmd "$tag data follows $nbytes $extents\n"
2756	return $cmd
2757	}
2758
2759
2760	#
2761	# flow --
2762	#
2763	# Called when the user clicks on the stop or play buttons
2764	# for flow visualization.
2765	#
2766	# $this flow play
2767	# $this flow stop
2768	# $this flow toggle
2769	# $this flow reset
2770	# $this flow pause
2771	# $this flow next
2772	#
2773	itcl::body Rappture::FlowvisViewer::flow { args } {
2774	set option [lindex $args 0]
2775	switch -- $option {
2776	"goto2" {
2777	puts stderr "actually sending \"flow goto $_flow(goto)\""
2778	SendCmd "flow goto $_flow(goto)"
2779	set _gotoPending 0
2780	}
2781	"goto" {
2782	puts stderr "flow goto to $_settings($this-currenttime)"
2783	# Figure out how many steps to the current time based upon
2784	# the speed and duration.
2785	set current $_settings($this-currenttime)
2786	set speed [$itk_component(speed) value]
2787	set time [str2millisecs $_settings($this-duration)]
2788	$itk_component(dial) configure -max $time
2789	set delay [expr int(round(500.0/$speed))]
2790	set timePerStep [expr {double($time) / $delay}]
2791	set nSteps [expr {int(ceil($current/$timePerStep))}]
2792	EventuallyGoto $nSteps
2793	}
2794	"speed" {
2795	set speed [$itk_component(speed) value]
2796	set _flow(delay) [expr int(round(500.0/$speed))]
2797	}
2798	"duration" {
2799	set max [str2millisecs $_settings($this-duration)]
2800	if { $max < 0 } {
2801	bell
2802	return
2803	}
2804	set _flow(duration) $max
2805	set _settings($this-duration) [millisecs2str $max]
2806	$itk_component(dial) configure -max $max
2807	}
2808	"off" {
2809	set _flow(state) 0
2810	$_dispatcher cancel !play
2811	$itk_component(play) deselect
2812	}
2813	"on" {
2814	flow speed
2815	flow duration
2816	set _flow(state) 1
2817	set _settings($this-currenttime) 0
2818	$itk_component(play) select
2819	}
2820	"stop" {
2821	if { $_flow(state) } {
2822	flow off
2823	flow reset
2824	}
2825	}
2826	"pause" {
2827	if { $_flow(state) } {
2828	flow off
2829	}
2830	}
2831	"play" {
2832	# If the flow is currently off, then restart it.
2833	if { !$_flow(state) } {
2834	flow on
2835	# If we're at the end of the flow, reset the flow.
2836	set _settings($this-currenttime) \
2837	[expr {$_settings($this-currenttime) + $_flow(delay)}]
2838	if { $_settings($this-currenttime) >= $_flow(duration) } {
2839	set _settings($this-step) 1
2840	SendCmd "flow reset"
2841	}
2842	flow next
2843	}
2844	}
2845	"toggle" {
2846	if { $_settings($this-play) } {
2847	flow play
2848	} else {
2849	flow pause
2850	}
2851	}
2852	"reset" {
2853	set _settings($this-currenttime) 0
2854	SendCmd "flow reset"
2855	if { !$_flow(state) } {
2856	SendCmd "flow next"
2857	}
2858	}
2859	"next" {
2860	if { ![winfo viewable $itk_component(3dview)] } {
2861	flow stop
2862	return
2863	}
2864	set _settings($this-currenttime) \
2865	[expr {$_settings($this-currenttime) + $_flow(delay)}]
2866	if { $_settings($this-currenttime) >= $_flow(duration) } {
2867	if { !$_settings($this-loop) } {
2868	flow off
2869	return
2870	}
2871	flow reset
2872	} else {
2873	SendCmd "flow next"
2874	}
2875	$_dispatcher event -after $_flow(delay) !play
2876	}
2877	default {
2878	error "bad option \"$option\": should be play, stop, toggle, or reset."
2879	}
2880	}
2881	}
2882
2883	itcl::body Rappture::FlowvisViewer::WaitIcon { option widget } {
2884	switch -- $option {
2885	"start" {
2886	$_dispatcher dispatch $this !waiticon \
2887	"[itcl::code $this WaitIcon "next" $widget] ; list"
2888	set _icon 0
2889	$widget configure -image [Rappture::icon bigroller${_icon}]
2890	$_dispatcher event -after 100 !waiticon
2891	}
2892	"next" {
2893	incr _icon
2894	if { $_icon >= 8 } {
2895	set _icon 0
2896	}
2897	$widget configure -image [Rappture::icon bigroller${_icon}]
2898	$_dispatcher event -after 100 !waiticon
2899	}
2900	"stop" {
2901	$_dispatcher cancel !waiticon
2902	}
2903	}
2904	}
2905
2906	itcl::body Rappture::FlowvisViewer::GetPngImage { widget width height } {
2907	set token "print[incr _nextToken]"
2908	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
2909	set $var ""
2910
2911	# Setup an automatic timeout procedure.
2912	$_dispatcher dispatch $this !pngtimeout "set $var {} ; list"
2913
2914	set popup .flowvisviewerprint
2915	if {![winfo exists $popup]} {
2916	Rappture::Balloon $popup -title "Generating file..."
2917	set inner [$popup component inner]
2918	label $inner.title -text "Generating hardcopy." -font "Arial 10 bold"
2919	label $inner.please -text "This may take a minute." -font "Arial 10"
2920	label $inner.icon -image [Rappture::icon bigroller0]
2921	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
2922	-command [list set $var ""]
2923	blt::table $inner \
2924	0,0 $inner.title -columnspan 2 \
2925	1,0 $inner.please -anchor w \
2926	1,1 $inner.icon -anchor e \
2927	2,0 $inner.cancel -columnspan 2
2928	blt::table configure $inner r0 -pady 4
2929	blt::table configure $inner r2 -pady 4
2930	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
2931	} else {
2932	set inner [$popup component inner]
2933	}
2934
2935	$_dispatcher event -after 60000 !pngtimeout
2936	WaitIcon start $inner.icon
2937	grab set $inner
2938	focus $inner.cancel
2939
2940	SendCmd "print $token $width $height"
2941
2942	$popup activate $widget below
2943	update
2944	# We wait here for either
2945	# 1) the png to be delivered or
2946	# 2) timeout or
2947	# 3) user cancels the operation.
2948	tkwait variable $var
2949
2950	# Clean up.
2951	$_dispatcher cancel !pngtimeout
2952	WaitIcon stop $inner.icon
2953	grab release $inner
2954	$popup deactivate
2955	update
2956
2957	if { $_hardcopy($this-$token) != "" } {
2958	return [list .png $_hardcopy($this-$token)]
2959	}
2960	return ""
2961	}
2962
2963	itcl::body Rappture::FlowvisViewer::GetMovie { widget w h } {
2964	set token "movie[incr _nextToken]"
2965	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
2966	set $var ""
2967
2968	# Setup an automatic timeout procedure.
2969	$_dispatcher dispatch $this !movietimeout "set $var {} ; list"
2970	set popup .flowvisviewermovie
2971	if {![winfo exists $popup]} {
2972	Rappture::Balloon $popup -title "Generating movie..."
2973	set inner [$popup component inner]
2974	label $inner.title -text "Generating movie for download" \
2975	-font "Arial 10 bold"
2976	label $inner.please -text "This may take a few minutes." \
2977	-font "Arial 10"
2978	label $inner.icon -image [Rappture::icon bigroller0]
2979	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
2980	-command [list set $var ""]
2981	blt::table $inner \
2982	0,0 $inner.title -columnspan 2 \
2983	1,0 $inner.please -anchor w \
2984	1,1 $inner.icon -anchor e \
2985	2,0 $inner.cancel -columnspan 2
2986	blt::table configure $inner r0 -pady 4
2987	blt::table configure $inner r2 -pady 4
2988	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
2989	} else {
2990	set inner [$popup component inner]
2991	}
2992	# Timeout is set to 10 minutes.
2993	$_dispatcher event -after 600000 !movietimeout
2994	WaitIcon start $inner.icon
2995	grab set $inner
2996	focus $inner.cancel
2997
2998	flow duration
2999	flow speed
3000	set nframes [expr round($_flow(duration) / $_flow(delay))]
3001	set framerate [expr 1000.0 / $_flow(delay)]
3002
3003	# These are specific to MPEG1 video generation
3004	set framerate 25.0
3005	set bitrate 6.0e+6
3006
3007	set start [clock seconds]
3008	SendCmd "flow video $token -width $w -height $h -numframes $nframes "
3009
3010	$popup activate $widget below
3011	update
3012	# We wait here until
3013	# 1. the movie is delivered or
3014	# 2. we've timed out or
3015	# 3. the user has canceled the operation.b
3016	tkwait variable $var
3017
3018	puts stderr "Video generated in [expr [clock seconds] - $start] seconds."
3019
3020	# Clean up.
3021	$_dispatcher cancel !movietimeout
3022	WaitIcon stop $inner.icon
3023	grab release $inner
3024	$popup deactivate
3025	destroy $popup
3026	update
3027
3028	# This will both cancel the movie generation (if it hasn't already
3029	# completed) and reset the flow.
3030	SendCmd "flow reset"
3031	if { $_hardcopy($this-$token) != "" } {
3032	return [list .mpg $_hardcopy($this-$token)]
3033	}
3034	return ""
3035	}
3036
3037	itcl::body Rappture::FlowvisViewer::str2millisecs { value } {
3038	set parts [split $value :]
3039	set secs 0
3040	set mins 0
3041	if { [llength $parts] == 1 } {
3042	scan [lindex $parts 0] "%d" secs
3043	} else {
3044	scan [lindex $parts 1] "%d" secs
3045	scan [lindex $parts 0] "%d" mins
3046	}
3047	set ms [expr {(($mins * 60) + $secs) * 1000.0}]
3048	if { $ms > 600000.0 } {
3049	set ms 600000.0
3050	}
3051	if { $ms == 0.0 } {
3052	set ms 60000.0
3053	}
3054	return $ms
3055	}
3056
3057	itcl::body Rappture::FlowvisViewer::millisecs2str { value } {
3058	set min [expr floor($value / 60000.0)]
3059	set sec [expr ($value - ($min*60000.0)) / 1000.0]
3060	return [format %02d:%02d [expr round($min)] [expr round($sec)]]
3061	}
3062

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