Context Navigation

source: trunk/gui/scripts/flowvisviewer.tcl @ 4730

Last change on this file since 4730 was 4725, checked in by ldelgass, 10 years ago
Collapse redundant transp/opacity settings in flowvisviewer in place of single opacity setting.
File size: 104.4 KB

Line
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	private variable _volcomponents ; # Array of components found
47	private variable _componentsList ; # Array of components found
48	private method BuildVolumeComponents {}
49	private method GetDatasetsWithComponent { cname }
50
51	constructor { hostlist args } {
52	Rappture::VisViewer::constructor $hostlist
53	} {
54	# defined below
55	}
56	destructor {
57	# defined below
58	}
59	public proc SetServerList { namelist } {
60	Rappture::VisViewer::SetServerList "nanovis" $namelist
61	}
62	public method add {dataobj {settings ""}}
63	public method camera {option args}
64	public method delete {args}
65	public method disconnect {}
66	public method download {option args}
67	public method flow {option}
68	public method get {args}
69	public method isconnected {}
70	public method limits { cname }
71	public method overMarker { m x }
72	public method parameters {title args} {
73	# do nothing
74	}
75	public method removeDuplicateMarker { m x }
76	public method scale {args}
77	public method updateTransferFunctions {}
78
79	protected method Connect {}
80	protected method CurrentVolumeIds {{what -all}}
81	protected method Disconnect {}
82	protected method Resize {}
83	protected method ResizeLegend {}
84	protected method AdjustSetting {what {value ""}}
85	protected method InitSettings { args }
86	protected method Pan {option x y}
87	protected method Rebuild {}
88	protected method ReceiveData { args }
89	protected method ReceiveImage { args }
90	protected method ReceiveLegend { tf vmin vmax size }
91	protected method Rotate {option x y}
92	protected method SendTransferFuncs {}
93	protected method Slice {option args}
94	protected method SlicerTip {axis}
95	protected method Zoom {option}
96
97	# soon to be removed.
98	protected method Flow {option args}
99	protected method Play {}
100	protected method Pause {}
101
102
103	# The following methods are only used by this class.
104
105	private method AddIsoMarker { x y }
106	private method BuildCameraTab {}
107	private method BuildCutplanesTab {}
108	private method BuildViewTab {}
109	private method BuildVolumeTab {}
110	private method ComputeTransferFunc { tf }
111	private method EventuallyResize { w h }
112	private method EventuallyGoto { nSteps }
113	private method EventuallyResizeLegend { }
114	private method FlowCmd { dataobj comp nbytes extents }
115	private method GetMovie { widget width height }
116	private method GetPngImage { widget width height }
117	private method NameTransferFunc { dataobj comp }
118	private method PanCamera {}
119	private method ParseLevelsOption { tf levels }
120	private method ParseMarkersOption { tf markers }
121	private method WaitIcon { option widget }
122	private method str2millisecs { value }
123	private method millisecs2str { value }
124	private method GetFlowInfo { widget }
125	private method particles { tag name }
126	private method box { tag name }
127	private method streams { tag name }
128	private method arrows { tag name }
129	private method SetOrientation { side }
130
131	private variable _arcball ""
132	private variable _dlist "" ;# list of data objects
133	private variable _allDataObjs
134	private variable _obj2ovride ;# maps dataobj => style override
135	private variable _serverObjs ;# maps dataobj-component to volume ID
136	# in the 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 _reset 1; # Connection to server has been reset
144	private variable _click ;# info used for rotate operations
145	private variable _limits ;# autoscale min/max for all axes
146	private variable _view ;# view params for 3D view
147	private variable _isomarkers ;# array of isosurface level values 0..1
148	private common _settings
149	private variable _activeTf "" ;# The currently active transfer function.
150	private variable _first "" ;# This is the topmost volume.
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 transferfunctions event
184	$_dispatcher register !send_transfunc
185	$_dispatcher dispatch $this !send_transfunc \
186	"[itcl::code $this SendTransferFuncs]; list"
187
188	# Rebuild event.
189	$_dispatcher register !rebuild
190	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
191
192	# Resize event.
193	$_dispatcher register !resize
194	$_dispatcher dispatch $this !resize "[itcl::code $this Resize]; list"
195
196	$_dispatcher register !play
197	$_dispatcher dispatch $this !play "[itcl::code $this flow next]; list"
198
199	# Draw legend event
200	$_dispatcher register !goto
201	$_dispatcher dispatch $this !goto "[itcl::code $this flow goto2]; list"
202
203	$_dispatcher register !movietimeout
204	$_dispatcher register !waiticon
205
206	set _flow(state) 0
207
208	array set _downloadPopup {
209	format draft
210	}
211	#
212	# Populate parser with commands handle incoming requests
213	#
214	$_parser alias image [itcl::code $this ReceiveImage]
215	$_parser alias legend [itcl::code $this ReceiveLegend]
216	$_parser alias data [itcl::code $this ReceiveData]
217
218	# Initialize the view to some default parameters.
219	array set _view {
220	qw 0.853553
221	qx -0.353553
222	qy 0.353553
223	qz 0.146447
224	zoom 1.0
225	xpan 0
226	ypan 0
227	}
228	set _arcball [blt::arcball create 100 100]
229	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
230	$_arcball quaternion $q
231
232	set _limits(v) [list 0.0 1.0]
233	set _reset 1
234
235	array set _settings [subst {
236	$this-qw $_view(qw)
237	$this-qx $_view(qx)
238	$this-qy $_view(qy)
239	$this-qz $_view(qz)
240	$this-zoom $_view(zoom)
241	$this-xpan $_view(xpan)
242	$this-ypan $_view(ypan)
243	$this-arrows 0
244	$this-currenttime 0
245	$this-duration 1:00
246	$this-loop 0
247	$this-play 0
248	$this-speed 500
249	$this-step 0
250	$this-streams 0
251	$this-volume 1
252	$this-ambient 60
253	$this-diffuse 40
254	$this-light2side 1
255	$this-opacity 50
256	$this-specularLevel 30
257	$this-specularExponent 90
258	$this-thickness 350
259	$this-cutplaneVisible 0
260	$this-xcutplane 1
261	$this-xcutposition 0
262	$this-ycutplane 1
263	$this-ycutposition 0
264	$this-zcutplane 1
265	$this-zcutposition 0
266	}]
267
268	itk_component add 3dview {
269	label $itk_component(plotarea).view -image $_image(plot) \
270	-highlightthickness 0 -borderwidth 0
271	} {
272	usual
273	ignore -highlightthickness -borderwidth -background
274	}
275	bind $itk_component(3dview) <Control-F1> [itcl::code $this ToggleConsole]
276
277	set f [$itk_component(main) component controls]
278	itk_component add reset {
279	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
280	-highlightthickness 0 \
281	-image [Rappture::icon reset-view] \
282	-command [itcl::code $this Zoom reset]
283	} {
284	usual
285	ignore -highlightthickness
286	}
287	pack $itk_component(reset) -side top -padx 2 -pady 2
288	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
289
290	itk_component add zoomin {
291	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
292	-highlightthickness 0 \
293	-image [Rappture::icon zoom-in] \
294	-command [itcl::code $this Zoom in]
295	} {
296	usual
297	ignore -highlightthickness
298	}
299	pack $itk_component(zoomin) -side top -padx 2 -pady 2
300	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
301
302	itk_component add zoomout {
303	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
304	-highlightthickness 0 \
305	-image [Rappture::icon zoom-out] \
306	-command [itcl::code $this Zoom out]
307	} {
308	usual
309	ignore -highlightthickness
310	}
311	pack $itk_component(zoomout) -side top -padx 2 -pady 2
312	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
313
314	itk_component add volume {
315	Rappture::PushButton $f.volume \
316	-onimage [Rappture::icon volume-on] \
317	-offimage [Rappture::icon volume-off] \
318	-command [itcl::code $this AdjustSetting volume] \
319	-variable [itcl::scope _settings($this-volume)]
320	}
321	$itk_component(volume) select
322	Rappture::Tooltip::for $itk_component(volume) \
323	"Toggle the volume cloud on/off"
324	pack $itk_component(volume) -padx 2 -pady 2
325
326	itk_component add cutplane {
327	Rappture::PushButton $f.cutplane \
328	-onimage [Rappture::icon cutbutton] \
329	-offimage [Rappture::icon cutbutton] \
330	-variable [itcl::scope _settings($this-cutplaneVisible)] \
331	-command [itcl::code $this AdjustSetting cutplaneVisible]
332	}
333	Rappture::Tooltip::for $itk_component(cutplane) \
334	"Show/Hide cutplanes"
335	pack $itk_component(cutplane) -padx 2 -pady 2
336
337	if { [catch {
338	BuildViewTab
339	BuildVolumeTab
340	BuildCutplanesTab
341	BuildCameraTab
342	} errs] != 0 } {
343	global errorInfo
344	puts stderr "errs=$errs errorInfo=$errorInfo"
345	}
346
347	bind $itk_component(3dview) <Configure> \
348	[itcl::code $this EventuallyResize %w %h]
349
350	# Legend
351	set _image(legend) [image create photo]
352	itk_component add legend {
353	canvas $itk_component(plotarea).legend -height 50 -highlightthickness 0
354	} {
355	usual
356	ignore -highlightthickness
357	rename -background -plotbackground plotBackground Background
358	}
359	bind $itk_component(legend) <Configure> \
360	[itcl::code $this EventuallyResizeLegend]
361
362	# Hack around the Tk panewindow. The problem is that the requested
363	# size of the 3d view isn't set until an image is retrieved from
364	# the server. So the panewindow uses the tiny size.
365	set w 10000
366	pack forget $itk_component(3dview)
367	blt::table $itk_component(plotarea) \
368	0,0 $itk_component(3dview) -fill both -reqwidth $w \
369	1,0 $itk_component(legend) -fill x
370	blt::table configure $itk_component(plotarea) r1 -resize none
371	# Create flow controls...
372
373	itk_component add flowcontrols {
374	frame $itk_interior.flowcontrols
375	} {
376	usual
377	rename -background -controlbackground controlBackground Background
378	}
379	pack forget $itk_component(main)
380	blt::table $itk_interior \
381	0,0 $itk_component(main) -fill both \
382	1,0 $itk_component(flowcontrols) -fill x
383	blt::table configure $itk_interior r1 -resize none
384
385	# Rewind
386	itk_component add rewind {
387	button $itk_component(flowcontrols).reset \
388	-borderwidth 1 -padx 1 -pady 1 \
389	-image [Rappture::icon flow-rewind] \
390	-command [itcl::code $this flow reset]
391	} {
392	usual
393	ignore -borderwidth
394	rename -highlightbackground -controlbackground controlBackground \
395	Background
396	}
397	Rappture::Tooltip::for $itk_component(rewind) \
398	"Rewind flow"
399
400	# Stop
401	itk_component add stop {
402	button $itk_component(flowcontrols).stop \
403	-borderwidth 1 -padx 1 -pady 1 \
404	-image [Rappture::icon flow-stop] \
405	-command [itcl::code $this flow stop]
406	} {
407	usual
408	ignore -borderwidth
409	rename -highlightbackground -controlbackground controlBackground \
410	Background
411	}
412	Rappture::Tooltip::for $itk_component(stop) \
413	"Stop flow"
414
415	# Play
416	itk_component add play {
417	Rappture::PushButton $itk_component(flowcontrols).play \
418	-onimage [Rappture::icon flow-pause] \
419	-offimage [Rappture::icon flow-play] \
420	-variable [itcl::scope _settings($this-play)] \
421	-command [itcl::code $this flow toggle]
422	}
423	set fg [option get $itk_component(hull) font Font]
424	Rappture::Tooltip::for $itk_component(play) \
425	"Play/Pause flow"
426
427	# Loop
428	itk_component add loop {
429	Rappture::PushButton $itk_component(flowcontrols).loop \
430	-onimage [Rappture::icon flow-loop] \
431	-offimage [Rappture::icon flow-loop] \
432	-variable [itcl::scope _settings($this-loop)]
433	}
434	Rappture::Tooltip::for $itk_component(loop) \
435	"Play continuously"
436
437	itk_component add dial {
438	Rappture::Flowdial $itk_component(flowcontrols).dial \
439	-length 10 -valuewidth 0 -valuepadding 0 -padding 6 \
440	-linecolor "" -activelinecolor "" \
441	-min 0.0 -max 1.0 \
442	-variable [itcl::scope _settings($this-currenttime)] \
443	-knobimage [Rappture::icon knob2] -knobposition center@middle
444	} {
445	usual
446	ignore -dialprogresscolor
447	rename -background -controlbackground controlBackground Background
448	}
449	$itk_component(dial) current 0.0
450	bind $itk_component(dial) <<Value>> [itcl::code $this flow goto]
451	# Duration
452	itk_component add duration {
453	entry $itk_component(flowcontrols).duration \
454	-textvariable [itcl::scope _settings($this-duration)] \
455	-bg white -width 6 -font "arial 9"
456	} {
457	usual
458	ignore -highlightthickness -background
459	}
460	bind $itk_component(duration) <Return> [itcl::code $this flow duration]
461	bind $itk_component(duration) <KP_Enter> [itcl::code $this flow duration]
462	bind $itk_component(duration) <Tab> [itcl::code $this flow duration]
463	Rappture::Tooltip::for $itk_component(duration) \
464	"Set duration of flow (format is min:sec)"
465
466
467	itk_component add durationlabel {
468	label $itk_component(flowcontrols).durationl \
469	-text "Duration:" -font $fg \
470	-highlightthickness 0
471	} {
472	usual
473	ignore -highlightthickness
474	rename -background -controlbackground controlBackground Background
475	}
476
477	itk_component add speedlabel {
478	label $itk_component(flowcontrols).speedl -text "Speed:" -font $fg \
479	-highlightthickness 0
480	} {
481	usual
482	ignore -highlightthickness
483	rename -background -controlbackground controlBackground Background
484	}
485
486	# Speed
487	itk_component add speed {
488	Rappture::Flowspeed $itk_component(flowcontrols).speed \
489	-min 1 -max 10 -width 3 -font "arial 9"
490	} {
491	usual
492	ignore -highlightthickness
493	rename -background -controlbackground controlBackground Background
494	}
495	Rappture::Tooltip::for $itk_component(speed) \
496	"Change speed of flow"
497
498	$itk_component(speed) value 1
499	bind $itk_component(speed) <<Value>> [itcl::code $this flow speed]
500
501
502	blt::table $itk_component(flowcontrols) \
503	0,0 $itk_component(rewind) -padx {3 0} \
504	0,1 $itk_component(stop) -padx {2 0} \
505	0,2 $itk_component(play) -padx {2 0} \
506	0,3 $itk_component(loop) -padx {2 0} \
507	0,4 $itk_component(dial) -fill x -padx {2 0 } \
508	0,5 $itk_component(duration) -padx { 0 0} \
509	0,7 $itk_component(speed) -padx {2 3}
510
511	# 0,6 $itk_component(speedlabel) -padx {2 0}
512	blt::table configure $itk_component(flowcontrols) c* -resize none
513	blt::table configure $itk_component(flowcontrols) c4 -resize both
514	blt::table configure $itk_component(flowcontrols) r0 -pady 1
515	# Bindings for rotation via mouse
516	bind $itk_component(3dview) <ButtonPress-1> \
517	[itcl::code $this Rotate click %x %y]
518	bind $itk_component(3dview) <B1-Motion> \
519	[itcl::code $this Rotate drag %x %y]
520	bind $itk_component(3dview) <ButtonRelease-1> \
521	[itcl::code $this Rotate release %x %y]
522
523	bind $itk_component(3dview) <Configure> \
524	[itcl::code $this EventuallyResize %w %h]
525
526	# Bindings for panning via mouse
527	bind $itk_component(3dview) <ButtonPress-2> \
528	[itcl::code $this Pan click %x %y]
529	bind $itk_component(3dview) <B2-Motion> \
530	[itcl::code $this Pan drag %x %y]
531	bind $itk_component(3dview) <ButtonRelease-2> \
532	[itcl::code $this Pan release %x %y]
533
534	# Bindings for panning via keyboard
535	bind $itk_component(3dview) <KeyPress-Left> \
536	[itcl::code $this Pan set -10 0]
537	bind $itk_component(3dview) <KeyPress-Right> \
538	[itcl::code $this Pan set 10 0]
539	bind $itk_component(3dview) <KeyPress-Up> \
540	[itcl::code $this Pan set 0 -10]
541	bind $itk_component(3dview) <KeyPress-Down> \
542	[itcl::code $this Pan set 0 10]
543	bind $itk_component(3dview) <Shift-KeyPress-Left> \
544	[itcl::code $this Pan set -2 0]
545	bind $itk_component(3dview) <Shift-KeyPress-Right> \
546	[itcl::code $this Pan set 2 0]
547	bind $itk_component(3dview) <Shift-KeyPress-Up> \
548	[itcl::code $this Pan set 0 -2]
549	bind $itk_component(3dview) <Shift-KeyPress-Down> \
550	[itcl::code $this Pan set 0 2]
551
552	# Bindings for zoom via keyboard
553	bind $itk_component(3dview) <KeyPress-Prior> \
554	[itcl::code $this Zoom out]
555	bind $itk_component(3dview) <KeyPress-Next> \
556	[itcl::code $this Zoom in]
557
558	bind $itk_component(3dview) <Enter> "focus $itk_component(3dview)"
559
560	if {[string equal "x11" [tk windowingsystem]]} {
561	# Bindings for zoom via mouse
562	bind $itk_component(3dview) <4> [itcl::code $this Zoom out]
563	bind $itk_component(3dview) <5> [itcl::code $this Zoom in]
564	}
565
566	set _image(download) [image create photo]
567
568	eval itk_initialize $args
569
570	Connect
571	}
572
573	# ----------------------------------------------------------------------
574	# DESTRUCTOR
575	# ----------------------------------------------------------------------
576	itcl::body Rappture::FlowvisViewer::destructor {} {
577	$_dispatcher cancel !rebuild
578	$_dispatcher cancel !send_transfunc
579	image delete $_image(plot)
580	image delete $_image(legend)
581	image delete $_image(download)
582	catch { blt::arcball destroy $_arcball }
583	array unset _settings $this-*
584	}
585
586	# ----------------------------------------------------------------------
587	# USAGE: add <dataobj> ?<settings>?
588	#
589	# Clients use this to add a data object to the plot. The optional
590	# <settings> are used to configure the plot. Allowed settings are
591	# -color, -brightness, -width, -linestyle, and -raise.
592	# ----------------------------------------------------------------------
593	itcl::body Rappture::FlowvisViewer::add {dataobj {settings ""}} {
594	array set params {
595	-color auto
596	-width 1
597	-linestyle solid
598	-brightness 0
599	-raise 0
600	-description ""
601	-param ""
602	}
603	array set params $settings
604	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
605	# can't handle -autocolors yet
606	set params(-color) black
607	}
608	foreach comp [$dataobj components] {
609	set flowobj [$dataobj flowhints $comp]
610	if { $flowobj == "" } {
611	puts stderr "no flowhints $dataobj-$comp"
612	continue
613	}
614	set _obj2flow($dataobj-$comp) $flowobj
615	}
616	set pos [lsearch -exact $_dlist $dataobj]
617	if {$pos < 0} {
618	lappend _dlist $dataobj
619	set _allDataObjs($dataobj) 1
620	set _obj2ovride($dataobj-color) $params(-color)
621	set _obj2ovride($dataobj-width) $params(-width)
622	set _obj2ovride($dataobj-raise) $params(-raise)
623	$_dispatcher event -idle !rebuild
624	}
625	}
626
627	# ----------------------------------------------------------------------
628	# USAGE: get ?-objects?
629	# USAGE: get ?-image 3dview\|legend?
630	#
631	# Clients use this to query the list of objects being plotted, in
632	# order from bottom to top of this result. The optional "-image"
633	# flag can also request the internal images being shown.
634	# ----------------------------------------------------------------------
635	itcl::body Rappture::FlowvisViewer::get {args} {
636	if {[llength $args] == 0} {
637	set args "-objects"
638	}
639
640	set op [lindex $args 0]
641	switch -- $op {
642	-objects {
643	# put the dataobj list in order according to -raise options
644	set dlist $_dlist
645	foreach obj $dlist {
646	if {[info exists _obj2ovride($obj-raise)] && $_obj2ovride($obj-raise)} {
647	set i [lsearch -exact $dlist $obj]
648	if {$i >= 0} {
649	set dlist [lreplace $dlist $i $i]
650	lappend dlist $obj
651	}
652	}
653	}
654	return $dlist
655	}
656	-image {
657	if {[llength $args] != 2} {
658	error "wrong # args: should be \"get -image 3dview\|legend\""
659	}
660	switch -- [lindex $args end] {
661	3dview {
662	return $_image(plot)
663	}
664	legend {
665	return $_image(legend)
666	}
667	default {
668	error "bad image name \"[lindex $args end]\": should be 3dview or legend"
669	}
670	}
671	}
672	default {
673	error "bad option \"$op\": should be -objects or -image"
674	}
675	}
676	}
677
678	# ----------------------------------------------------------------------
679	# USAGE: delete ?<dataobj1> <dataobj2> ...?
680	#
681	# Clients use this to delete a dataobj from the plot. If no dataobjs
682	# are specified, then all dataobjs are deleted. No data objects are
683	# deleted. They are only removed from the display list.
684	#
685	# ----------------------------------------------------------------------
686	itcl::body Rappture::FlowvisViewer::delete {args} {
687	flow stop
688	if {[llength $args] == 0} {
689	set args $_dlist
690	}
691
692	# Delete all specified dataobjs
693	set changed 0
694	foreach dataobj $args {
695	set pos [lsearch -exact $_dlist $dataobj]
696	if { $pos >= 0 } {
697	foreach comp [$dataobj components] {
698	array unset _limits $dataobj-$comp-*
699	}
700	set _dlist [lreplace $_dlist $pos $pos]
701	array unset _obj2ovride $dataobj-*
702	array unset _obj2flow $dataobj-*
703	array unset _serverObjs $dataobj-*
704	array unset _obj2style $dataobj-*
705	set changed 1
706	}
707	}
708	# If anything changed, then rebuild the plot
709	if {$changed} {
710	# Repair the reverse lookup
711	foreach tf [array names _style2objs] {
712	set list {}
713	foreach {dataobj comp} $_style2objs($tf) break
714	if { [info exists _serverObjs($dataobj-$comp)] } {
715	lappend list $dataobj $comp
716	}
717	if { $list == "" } {
718	array unset _style2objs $tf
719	} else {
720	set _style2objs($tf) $list
721	}
722	}
723	$_dispatcher event -idle !rebuild
724	}
725	}
726
727	# ----------------------------------------------------------------------
728	# USAGE: scale ?<data1> <data2> ...?
729	#
730	# Sets the default limits for the overall plot according to the
731	# limits of the data for all of the given <data> objects. This
732	# accounts for all objects--even those not showing on the screen.
733	# Because of this, the limits are appropriate for all objects as
734	# the user scans through data in the ResultSet viewer.
735	# ----------------------------------------------------------------------
736	itcl::body Rappture::FlowvisViewer::scale {args} {
737	array set styles {
738	-color BCGYR
739	-levels 6
740	-markers ""
741	-opacity 0.5
742	}
743	array unset _limits
744	array unset _volcomponents
745	foreach dataobj $args {
746	if { ![$dataobj isvalid] } {
747	continue; # Object doesn't contain valid data.
748	}
749	foreach cname [$dataobj components] {
750	if { ![info exists _volcomponents($cname)] } {
751	lappend _componentsList $cname
752	array set styles [lindex [$dataobj components -style $cname] 0]
753	set cmap [ColorsToColormap $styles(-color)]
754	set _cname2defaultcolormap($cname) $cmap
755	set _settings($cname-colormap) $styles(-color)
756	}
757	lappend _volcomponents($cname) $dataobj-$cname
758	array unset limits
759	array set limits [$dataobj valueLimits $cname]
760	set _limits($cname) $limits(v)
761	}
762	foreach axis {x y z v} {
763	foreach { min max } [$dataobj limits $axis] break
764	if {"" != $min && "" != $max} {
765	if { ![info exists _limits($axis)] } {
766	set _limits($axis) [list $min $max]
767	} else {
768	foreach {amin amax} $_limits($axis) break
769	if {$min < $amin} {
770	set amin $min
771	}
772	if {$max > $amax} {
773	set amax $max
774	}
775	set _limits($axis) [list $amin $amax]
776	}
777	}
778	}
779	}
780	#BuildVolumeComponents
781	}
782
783	# ----------------------------------------------------------------------
784	# USAGE: download coming
785	# USAGE: download controls <downloadCommand>
786	# USAGE: download now
787	#
788	# Clients use this method to create a downloadable representation
789	# of the plot. Returns a list of the form {ext string}, where
790	# "ext" is the file extension (indicating the type of data) and
791	# "string" is the data itself.
792	# ----------------------------------------------------------------------
793	itcl::body Rappture::FlowvisViewer::download {option args} {
794	set popup .flowvisviewerdownload
795	switch $option {
796	coming {
797	if {[catch {
798	blt::winop snap $itk_component(plotarea) $_image(download)
799	}]} {
800	$_image(download) configure -width 1 -height 1
801	$_image(download) put #000000
802	}
803	}
804	controls {
805	if {![winfo exists $popup]} {
806	# if we haven't created the popup yet, do it now
807	Rappture::Balloon $popup \
808	-title "[Rappture::filexfer::label downloadWord] as..."
809	set inner [$popup component inner]
810	label $inner.summary -text "" -anchor w
811	pack $inner.summary -side top
812	set img $_image(plot)
813	set res "[image width $img]x[image height $img]"
814	radiobutton $inner.draft -text "Image (draft $res)" \
815	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
816	-value draft
817	pack $inner.draft -anchor w
818
819	set res "640x480"
820	radiobutton $inner.medium -text "Movie (standard $res)" \
821	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
822	-value $res
823	pack $inner.medium -anchor w
824
825	set res "1024x768"
826	radiobutton $inner.high -text "Movie (high quality $res)" \
827	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
828	-value $res
829	pack $inner.high -anchor w
830	button $inner.go -text [Rappture::filexfer::label download] \
831	-command [lindex $args 0]
832	pack $inner.go -pady 4
833	$inner.draft select
834	} else {
835	set inner [$popup component inner]
836	}
837	set num [llength [get]]
838	set num [expr {($num == 1) ? "1 result" : "$num results"}]
839	set word [Rappture::filexfer::label downloadWord]
840	$inner.summary configure -text "$word $num in the following format:"
841	update idletasks ;# fix initial sizes
842	update
843	return $popup
844	}
845	now {
846	if { [winfo exists $popup] } {
847	$popup deactivate
848	}
849	switch -- $_downloadPopup(format) {
850	draft {
851	# Get the image data (as base64) and decode it back to
852	# binary. This is better than writing to temporary
853	# files. When we switch to the BLT picture image it
854	# won't be necessary to decode the image data.
855	set bytes [$_image(plot) data -format "jpeg -quality 100"]
856	set bytes [Rappture::encoding::decode -as b64 $bytes]
857	return [list .jpg $bytes]
858	}
859	"640x480" {
860	return [$this GetMovie [lindex $args 0] 640 480]
861	}
862	"1024x768" {
863	return [$this GetMovie [lindex $args 0] 1024 768]
864	}
865	default {
866	error "bad download format $_downloadPopup(format)"
867	}
868	}
869	}
870	default {
871	error "bad option \"$option\": should be coming, controls, now"
872	}
873	}
874	}
875
876	# ----------------------------------------------------------------------
877	# USAGE: Connect ?<host:port>,<host:port>...?
878	#
879	# Clients use this method to establish a connection to a new
880	# server, or to reestablish a connection to the previous server.
881	# Any existing connection is automatically closed.
882	# ----------------------------------------------------------------------
883	itcl::body Rappture::FlowvisViewer::Connect {} {
884	set _hosts [GetServerList "nanovis"]
885	if { "" == $_hosts } {
886	return 0
887	}
888	set _reset 1
889	set result [VisViewer::Connect $_hosts]
890	if { $result } {
891	if { $_reportClientInfo } {
892	# Tell the server the viewer, hub, user and session.
893	# Do this immediately on connect before buffering any commands
894	global env
895
896	set info {}
897	set user "???"
898	if { [info exists env(USER)] } {
899	set user $env(USER)
900	}
901	set session "???"
902	if { [info exists env(SESSION)] } {
903	set session $env(SESSION)
904	}
905	lappend info "version" "$Rappture::version"
906	lappend info "build" "$Rappture::build"
907	lappend info "svnurl" "$Rappture::svnurl"
908	lappend info "installdir" "$Rappture::installdir"
909	lappend info "hub" [exec hostname]
910	lappend info "client" "flowvisviewer"
911	lappend info "user" $user
912	lappend info "session" $session
913	SendCmd "clientinfo [list $info]"
914	}
915
916	set w [winfo width $itk_component(3dview)]
917	set h [winfo height $itk_component(3dview)]
918	EventuallyResize $w $h
919	}
920	return $result
921	}
922
923	#
924	# isconnected --
925	#
926	# Indicates if we are currently connected to the visualization server.
927	#
928	itcl::body Rappture::FlowvisViewer::isconnected {} {
929	return [VisViewer::IsConnected]
930	}
931
932	#
933	# disconnect --
934	#
935	itcl::body Rappture::FlowvisViewer::disconnect {} {
936	Disconnect
937	}
938
939	#
940	# Disconnect --
941	#
942	# Clients use this method to disconnect from the current rendering
943	# server.
944	#
945	itcl::body Rappture::FlowvisViewer::Disconnect {} {
946	VisViewer::Disconnect
947
948	# disconnected -- no more data sitting on server
949	array unset _serverObjs
950	}
951
952	# ----------------------------------------------------------------------
953	# USAGE: SendTransferFuncs
954	# ----------------------------------------------------------------------
955	itcl::body Rappture::FlowvisViewer::SendTransferFuncs {} {
956	if { $_activeTf == "" } {
957	puts stderr "no active tf"
958	return
959	}
960	set tf $_activeTf
961	if { $_first == "" } {
962	puts stderr "no first"
963	return
964	}
965
966	# Ensure that the global thickness setting (in the slider settings widget)
967	# is used for the active transfer-function. Update the values in the
968	# _settings varible.
969
970	set value $_settings($this-thickness)
971	# Scale values between 0.00001 and 0.01000
972	set thickness [expr {double($value) * 0.0001}]
973	set _settings($this-$tf-thickness) $thickness
974
975	foreach key [array names _obj2style $_first-*] {
976	if { [info exists _obj2style($key)] } {
977	foreach tf $_obj2style($key) {
978	ComputeTransferFunc $tf
979	}
980	}
981	}
982	EventuallyResizeLegend
983	}
984
985	# ----------------------------------------------------------------------
986	# USAGE: ReceiveImage -bytes $size -type $type -token $token
987	#
988	# Invoked automatically whenever the "image" command comes in from
989	# the rendering server. Indicates that binary image data with the
990	# specified <size> will follow.
991	# ----------------------------------------------------------------------
992	itcl::body Rappture::FlowvisViewer::ReceiveImage { args } {
993	array set info {
994	-token "???"
995	-bytes 0
996	-type image
997	}
998	array set info $args
999	set bytes [ReceiveBytes $info(-bytes)]
1000	ReceiveEcho <<line "<read $info(-bytes) bytes"
1001	switch -- $info(-type) {
1002	"image" {
1003	$_image(plot) configure -data $bytes
1004	#puts stderr "image received [image width $_image(plot)] by [image height $_image(plot)]"
1005	}
1006	"print" {
1007	set tag $this-$info(-token)
1008	set _hardcopy($tag) $bytes
1009	}
1010	"movie" {
1011	set tag $this-$info(-token)
1012	set _hardcopy($tag) $bytes
1013	}
1014	default {
1015	puts stderr "unknown download type $info(-type)"
1016	}
1017	}
1018	}
1019
1020	#
1021	# ReceiveLegend --
1022	#
1023	# The procedure is the response from the render server to each "legend"
1024	# command. The server sends back a "legend" command invoked our
1025	# the slave interpreter. The purpose is to collect data of the image
1026	# representing the legend in the canvas. In addition, the isomarkers
1027	# of the active transfer function are displayed.
1028	#
1029	# I don't know is this is the right place to display the isomarkers.
1030	# I don't know all the different paths used to draw the plot. There's
1031	# "Rebuild", "add", etc.
1032	#
1033	itcl::body Rappture::FlowvisViewer::ReceiveLegend { tag vmin vmax size } {
1034	if { ![isconnected] } {
1035	return
1036	}
1037	#puts stderr "receive legend $tag $vmin $vmax $size"
1038	set bytes [ReceiveBytes $size]
1039	$_image(legend) configure -data $bytes
1040	ReceiveEcho <<line "<read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
1041
1042	set c $itk_component(legend)
1043	set w [winfo width $c]
1044	set h [winfo height $c]
1045	set lx 10
1046	set ly [expr {$h - 1}]
1047	if {"" == [$c find withtag colorbar]} {
1048	$c create image 10 10 -anchor nw \
1049	-image $_image(legend) -tags colorbar
1050	$c create text $lx $ly -anchor sw \
1051	-fill $itk_option(-plotforeground) -tags "limits vmin"
1052	$c create text [expr {$w-$lx}] $ly -anchor se \
1053	-fill $itk_option(-plotforeground) -tags "limits vmax"
1054	$c lower colorbar
1055	$c bind colorbar <ButtonRelease-1> [itcl::code $this AddIsoMarker %x %y]
1056	}
1057	# Display the markers used by the active transfer function.
1058	set tf $_obj2style($tag)
1059	foreach {vmin vmax} [limits $tf] break
1060	$c itemconfigure vmin -text [format %g $vmin]
1061	$c coords vmin $lx $ly
1062
1063	$c itemconfigure vmax -text [format %g $vmax]
1064	$c coords vmax [expr {$w-$lx}] $ly
1065
1066	if { [info exists _isomarkers($tf)] } {
1067	foreach m $_isomarkers($tf) {
1068	$m visible yes
1069	}
1070	}
1071	}
1072
1073	#
1074	# ReceiveData --
1075	#
1076	# The procedure is the response from the render server to each "data
1077	# follows" command. The server sends back a "data" command invoked our
1078	# the slave interpreter. The purpose is to collect the min/max of the
1079	# volume sent to the render server. Since the client (flowvisviewer)
1080	# doesn't parse 3D data formats, we rely on the server (flowvis) to
1081	# tell us what the limits are. Once we've received the limits to all
1082	# the data we've sent (tracked by _recvObjs) we can then determine
1083	# what the transfer functions are for these # volumes.
1084	#
1085	# Note: There is a considerable tradeoff in having the server report
1086	# back what the data limits are. It means that much of the code
1087	# having to do with transfer-functions has to wait for the data
1088	# to come back, since the isomarkers are calculated based upon
1089	# the data limits. The client code is much messier because of
1090	# this. The alternative is to parse any of the 3D formats on the
1091	# client side.
1092	#
1093	itcl::body Rappture::FlowvisViewer::ReceiveData { args } {
1094	if { ![isconnected] } {
1095	return
1096	}
1097	# Arguments from server are name value pairs. Stuff them in an array.
1098	array set values $args
1099	set tag $values(tag)
1100	set parts [split $tag -]
1101	set dataobj [lindex $parts 0]
1102	set _serverObjs($tag) 0
1103	set _limits($tag) [list $values(min) $values(max)]
1104	unset _recvObjs($tag)
1105	if { [array size _recvObjs] == 0 } {
1106	updateTransferFunctions
1107	}
1108	}
1109
1110	#
1111	# Rebuild --
1112	#
1113	# Called automatically whenever something changes that affects the data
1114	# in the widget. Clears any existing data and rebuilds the widget to
1115	# display new data.
1116	#
1117	itcl::body Rappture::FlowvisViewer::Rebuild {} {
1118	set w [winfo width $itk_component(3dview)]
1119	set h [winfo height $itk_component(3dview)]
1120	if { $w < 2 \|\| $h < 2 } {
1121	$_dispatcher event -idle !rebuild
1122	return
1123	}
1124
1125	# Turn on buffering of commands to the server. We don't want to
1126	# be preempted by a server disconnect/reconnect (which automatically
1127	# generates a new call to Rebuild).
1128	StartBufferingCommands
1129
1130	# Hide all the isomarkers. Can't remove them. Have to remember the
1131	# settings since the user may have created/deleted/moved markers.
1132
1133	foreach tf [array names _isomarkers] {
1134	foreach m $_isomarkers($tf) {
1135	$m visible no
1136	}
1137	}
1138
1139	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
1140	set _width $w
1141	set _height $h
1142	$_arcball resize $w $h
1143	Resize
1144	}
1145
1146	set _first ""
1147	foreach dataobj [get] {
1148	foreach comp [$dataobj components] {
1149	set tag $dataobj-$comp
1150	set isvtk 0
1151	# FIXME: Would like to use the type method of the dataobj
1152	# but the returned value isn't well defined now
1153	if {[catch {
1154	# Send the data as one huge base64-encoded mess -- yuck!
1155	set data [$dataobj blob $comp]
1156	}]} {
1157	set data [$dataobj vtkdata $comp]
1158	set isvtk 1
1159	}
1160	set nbytes [string length $data]
1161	if { $_reportClientInfo } {
1162	set info {}
1163	lappend info "tool_id" [$dataobj hints toolId]
1164	lappend info "tool_name" [$dataobj hints toolName]
1165	lappend info "tool_version" [$dataobj hints toolRevision]
1166	lappend info "tool_title" [$dataobj hints toolTitle]
1167	lappend info "dataset_label" [$dataobj hints label]
1168	lappend info "dataset_size" $nbytes
1169	lappend info "dataset_tag" $tag
1170	SendCmd "clientinfo [list $info]"
1171	}
1172	set extents [$dataobj extents $comp]
1173	# I have a field. Is a vector field or a volume field?
1174	if { !$isvtk && $extents == 1 } {
1175	set cmd "volume data follows $nbytes $tag\n"
1176	} else {
1177	set cmd [FlowCmd $dataobj $comp $nbytes $extents]
1178	if { $cmd == "" } {
1179	puts stderr "no command"
1180	continue
1181	}
1182	}
1183	append _outbuf $cmd
1184	append _outbuf $data
1185	NameTransferFunc $dataobj $comp
1186	set _recvObjs($tag) 1
1187	}
1188	}
1189
1190	set _first [lindex [get] 0]
1191
1192	foreach axis {x y z} {
1193	# Turn off cutplanes for all volumes
1194	SendCmd "cutplane state 0 $axis"
1195	}
1196
1197	# Reset the camera and other view parameters
1198	InitSettings light2side ambient diffuse specularLevel specularExponent \
1199	opacity isosurface grid axes volume outline \
1200	cutplaneVisible xcutplane ycutplane zcutplane
1201
1202	# nothing to send -- activate the proper volume
1203	if {"" != $_first} {
1204	set axis [$_first hints updir]
1205	if {"" != $axis} {
1206	SendCmd "up $axis"
1207	}
1208	set location [$_first hints camera]
1209	if { $location != "" } {
1210	array set _view $location
1211	}
1212
1213	}
1214	set _settings($this-qw) $_view(qw)
1215	set _settings($this-qx) $_view(qx)
1216	set _settings($this-qy) $_view(qy)
1217	set _settings($this-qz) $_view(qz)
1218	set _settings($this-xpan) $_view(xpan)
1219	set _settings($this-ypan) $_view(ypan)
1220	set _settings($this-zoom) $_view(zoom)
1221
1222	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1223	$_arcball quaternion $q
1224	SendCmd "camera orient $q"
1225	SendCmd "camera reset"
1226	PanCamera
1227	SendCmd "camera zoom $_view(zoom)"
1228
1229	foreach dataobj [get] {
1230	foreach comp [$dataobj components] {
1231	NameTransferFunc $dataobj $comp
1232	}
1233	}
1234
1235	# nothing to send -- activate the proper ivol
1236	set _first [lindex [get] 0]
1237	if {"" != $_first} {
1238	set axis [$_first hints updir]
1239	if {"" != $axis} {
1240	SendCmd "up $axis"
1241	}
1242	set location [$_first hints camera]
1243	if { $location != "" } {
1244	array set _view $location
1245	}
1246	set comp [lindex [$_first components] 0]
1247	set _activeTf [lindex $_obj2style($_first-$comp) 0]
1248	}
1249
1250
1251	# sync the state of slicers
1252	set vols [CurrentVolumeIds -cutplanes]
1253	foreach axis {x y z} {
1254	set pos [expr {0.01*$_settings($this-${axis}cutposition)}]
1255	SendCmd "cutplane position $pos $axis $vols"
1256	}
1257	SendCmd "volume data state $_settings($this-volume)"
1258	EventuallyResizeLegend
1259
1260	# Actually write the commands to the server socket. If it fails, we don't
1261	# care. We're finished here.
1262	blt::busy hold $itk_component(hull)
1263	StopBufferingCommands
1264	blt::busy release $itk_component(hull)
1265	set _reset 0
1266	}
1267
1268	# ----------------------------------------------------------------------
1269	# USAGE: CurrentVolumeIds ?-cutplanes?
1270	#
1271	# Returns a list of volume server IDs for the current volume being
1272	# displayed. This is normally a single ID, but it might be a list
1273	# of IDs if the current data object has multiple components.
1274	# ----------------------------------------------------------------------
1275	itcl::body Rappture::FlowvisViewer::CurrentVolumeIds {{what -all}} {
1276	return ""
1277	if { $_first == "" } {
1278	return
1279	}
1280	foreach key [array names _serverObjs -] {
1281	if {[string match $_first-* $key]} {
1282	array set styles {
1283	-cutplanes 1
1284	}
1285	foreach {dataobj comp} [split $key -] break
1286	array set styles [lindex [$dataobj components -style $comp] 0]
1287	if {$what != "-cutplanes" \|\| $styles(-cutplanes)} {
1288	lappend rlist $_serverObjs($key)
1289	}
1290	}
1291	}
1292	return $rlist
1293	}
1294
1295	# ----------------------------------------------------------------------
1296	# USAGE: Zoom in
1297	# USAGE: Zoom out
1298	# USAGE: Zoom reset
1299	#
1300	# Called automatically when the user clicks on one of the zoom
1301	# controls for this widget. Changes the zoom for the current view.
1302	# ----------------------------------------------------------------------
1303	itcl::body Rappture::FlowvisViewer::Zoom {option} {
1304	switch -- $option {
1305	"in" {
1306	set _view(zoom) [expr {$_view(zoom)*1.25}]
1307	set _settings($this-zoom) $_view(zoom)
1308	SendCmd "camera zoom $_view(zoom)"
1309	}
1310	"out" {
1311	set _view(zoom) [expr {$_view(zoom)*0.8}]
1312	set _settings($this-zoom) $_view(zoom)
1313	SendCmd "camera zoom $_view(zoom)"
1314	}
1315	"reset" {
1316	array set _view {
1317	qw 0.853553
1318	qx -0.353553
1319	qy 0.353553
1320	qz 0.146447
1321	zoom 1.0
1322	xpan 0
1323	ypan 0
1324	}
1325	if { $_first != "" } {
1326	set location [$_first hints camera]
1327	if { $location != "" } {
1328	array set _view $location
1329	}
1330	}
1331	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1332	$_arcball quaternion $q
1333	SendCmd "camera orient $q"
1334	SendCmd "camera reset"
1335	set _settings($this-qw) $_view(qw)
1336	set _settings($this-qx) $_view(qx)
1337	set _settings($this-qy) $_view(qy)
1338	set _settings($this-qz) $_view(qz)
1339	set _settings($this-xpan) $_view(xpan)
1340	set _settings($this-ypan) $_view(ypan)
1341	set _settings($this-zoom) $_view(zoom)
1342	}
1343	}
1344	}
1345
1346	itcl::body Rappture::FlowvisViewer::PanCamera {} {
1347	set x $_view(xpan)
1348	set y $_view(ypan)
1349	SendCmd "camera pan $x $y"
1350	}
1351
1352	# ----------------------------------------------------------------------
1353	# USAGE: Rotate click <x> <y>
1354	# USAGE: Rotate drag <x> <y>
1355	# USAGE: Rotate release <x> <y>
1356	#
1357	# Called automatically when the user clicks/drags/releases in the
1358	# plot area. Moves the plot according to the user's actions.
1359	# ----------------------------------------------------------------------
1360	itcl::body Rappture::FlowvisViewer::Rotate {option x y} {
1361	switch -- $option {
1362	click {
1363	$itk_component(3dview) configure -cursor fleur
1364	set _click(x) $x
1365	set _click(y) $y
1366	}
1367	drag {
1368	if {[array size _click] == 0} {
1369	Rotate click $x $y
1370	} else {
1371	set w [winfo width $itk_component(3dview)]
1372	set h [winfo height $itk_component(3dview)]
1373	if {$w <= 0 \|\| $h <= 0} {
1374	return
1375	}
1376
1377	if {[catch {
1378	# this fails sometimes for no apparent reason
1379	set dx [expr {double($x-$_click(x))/$w}]
1380	set dy [expr {double($y-$_click(y))/$h}]
1381	}]} {
1382	return
1383	}
1384
1385	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1386	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
1387	set _settings($this-qw) $_view(qw)
1388	set _settings($this-qx) $_view(qx)
1389	set _settings($this-qy) $_view(qy)
1390	set _settings($this-qz) $_view(qz)
1391	SendCmd "camera orient $q"
1392
1393	set _click(x) $x
1394	set _click(y) $y
1395	}
1396	}
1397	release {
1398	Rotate drag $x $y
1399	$itk_component(3dview) configure -cursor ""
1400	catch {unset _click}
1401	}
1402	default {
1403	error "bad option \"$option\": should be click, drag, release"
1404	}
1405	}
1406	}
1407
1408	# ----------------------------------------------------------------------
1409	# USAGE: $this Pan click x y
1410	# $this Pan drag x y
1411	# $this Pan release x y
1412	#
1413	# Called automatically when the user clicks on one of the zoom
1414	# controls for this widget. Changes the zoom for the current view.
1415	# ----------------------------------------------------------------------
1416	itcl::body Rappture::FlowvisViewer::Pan {option x y} {
1417	# Experimental stuff
1418	set w [winfo width $itk_component(3dview)]
1419	set h [winfo height $itk_component(3dview)]
1420	if { $option == "set" } {
1421	set x [expr $x / double($w)]
1422	set y [expr $y / double($h)]
1423	set _view(xpan) [expr $_view(xpan) + $x]
1424	set _view(ypan) [expr $_view(ypan) + $y]
1425	PanCamera
1426	set _settings($this-xpan) $_view(xpan)
1427	set _settings($this-ypan) $_view(ypan)
1428	return
1429	}
1430	if { $option == "click" } {
1431	set _click(x) $x
1432	set _click(y) $y
1433	$itk_component(3dview) configure -cursor hand1
1434	}
1435	if { $option == "drag" \|\| $option == "release" } {
1436	set dx [expr ($_click(x) - $x)/double($w)]
1437	set dy [expr ($_click(y) - $y)/double($h)]
1438	set _click(x) $x
1439	set _click(y) $y
1440	set _view(xpan) [expr $_view(xpan) - $dx]
1441	set _view(ypan) [expr $_view(ypan) - $dy]
1442	PanCamera
1443	set _settings($this-xpan) $_view(xpan)
1444	set _settings($this-ypan) $_view(ypan)
1445	}
1446	if { $option == "release" } {
1447	$itk_component(3dview) configure -cursor ""
1448	}
1449	}
1450
1451
1452	# ----------------------------------------------------------------------
1453	# USAGE: Flow movie record\|stop\|play ?on\|off\|toggle?
1454	#
1455	# Called when the user clicks on the record, stop or play buttons
1456	# for flow visualization.
1457	# ----------------------------------------------------------------------
1458	itcl::body Rappture::FlowvisViewer::Flow {option args} {
1459	switch -- $option {
1460	movie {
1461	if {[llength $args] < 1 \|\| [llength $args] > 2} {
1462	error "wrong # args: should be \"Flow movie record\|stop\|play ?on\|off\|toggle?\""
1463	}
1464	set action [lindex $args 0]
1465	set op [lindex $args 1]
1466	if {$op == ""} { set op "on" }
1467
1468	set current [State $action]
1469	if {$op == "toggle"} {
1470	if {$current == "on"} {
1471	set op "off"
1472	} else {
1473	set op "on"
1474	}
1475	}
1476	set cmds ""
1477	switch -- $action {
1478	record {
1479	if { [$itk_component(rewind) cget -relief] != "sunken" } {
1480	$itk_component(rewind) configure -relief sunken
1481	$itk_component(stop) configure -relief raised
1482	$itk_component(play) configure -relief raised
1483	set inner $itk_component(settingsFrame)
1484	set frames [$inner.framecnt value]
1485	set _settings(nsteps) $frames
1486	set cmds "flow capture $frames"
1487	SendCmd $cmds
1488	}
1489	}
1490	stop {
1491	if { [$itk_component(stop) cget -relief] != "sunken" } {
1492	$itk_component(rewind) configure -relief raised
1493	$itk_component(stop) configure -relief sunken
1494	$itk_component(play) configure -relief raised
1495	_pause
1496	set cmds "flow reset"
1497	SendCmd $cmds
1498	}
1499	}
1500	play {
1501	if { [$itk_component(play) cget -relief] != "sunken" } {
1502	$itk_component(rewind) configure -relief raised
1503	$itk_component(stop) configure -relief raised
1504	$itk_component(play) configure \
1505	-image [Rappture::icon flow-pause] \
1506	-relief sunken
1507	bind $itk_component(play) <ButtonPress> \
1508	[itcl::code $this _pause]
1509	flow next
1510	}
1511	}
1512	default {
1513	error "bad option \"$option\": should be one of record\|stop\|play"
1514	}
1515
1516	}
1517	}
1518	default {
1519	error "bad option \"$option\": should be movie"
1520	}
1521	}
1522	}
1523
1524	# ----------------------------------------------------------------------
1525	# USAGE: Play
1526	#
1527	# ----------------------------------------------------------------------
1528	itcl::body Rappture::FlowvisViewer::Play {} {
1529	SendCmd "flow next"
1530	set delay [expr {int(ceil(pow($_settings(speed)/10.0+2,2.0)*15))}]
1531	$_dispatcher event -after $delay !play
1532	}
1533
1534	# ----------------------------------------------------------------------
1535	# USAGE: Pause
1536	#
1537	# Invoked when the user hits the "pause" button to stop playing the
1538	# current sequence of frames as a movie.
1539	# ----------------------------------------------------------------------
1540	itcl::body Rappture::FlowvisViewer::Pause {} {
1541	$_dispatcher cancel !play
1542
1543	# Toggle the button to "play" mode
1544	$itk_component(play) configure \
1545	-image [Rappture::icon flow-start] \
1546	-relief raised
1547	bind $itk_component(play) <ButtonPress> \
1548	[itcl::code $this Flow movie play toggle]
1549	}
1550
1551	# ----------------------------------------------------------------------
1552	# USAGE: InitSettings <what> ?<value>?
1553	#
1554	# Used internally to update rendering settings whenever parameters
1555	# change in the popup settings panel. Sends the new settings off
1556	# to the back end.
1557	# ----------------------------------------------------------------------
1558	itcl::body Rappture::FlowvisViewer::InitSettings { args } {
1559	foreach arg $args {
1560	AdjustSetting $arg
1561	}
1562	}
1563
1564	# ----------------------------------------------------------------------
1565	# USAGE: AdjustSetting <what> ?<value>?
1566	#
1567	# Used internally to update rendering settings whenever parameters
1568	# change in the popup settings panel. Sends the new settings off
1569	# to the back end.
1570	# ----------------------------------------------------------------------
1571	itcl::body Rappture::FlowvisViewer::AdjustSetting {what {value ""}} {
1572	switch -- $what {
1573	colormap {
1574	set color [$itk_component(colormap) value]
1575	set _settings(colormap) $color
1576	#ResetColormap $color
1577	}
1578	ambient {
1579	if { $_first != "" } {
1580	set comp [lindex [$_first components] 0]
1581	set tag $_first-$comp
1582	set val $_settings($this-ambient)
1583	set val [expr {0.01*$val}]
1584	SendCmd "$tag configure -ambient $val"
1585	}
1586	}
1587	diffuse {
1588	if { $_first != "" } {
1589	set comp [lindex [$_first components] 0]
1590	set tag $_first-$comp
1591	set val $_settings($this-diffuse)
1592	set val [expr {0.01*$val}]
1593	SendCmd "$tag configure -diffuse $val"
1594	}
1595	}
1596	specularLevel {
1597	if { $_first != "" } {
1598	set comp [lindex [$_first components] 0]
1599	set tag $_first-$comp
1600	set val $_settings($this-specularLevel)
1601	set val [expr {0.01*$val}]
1602	SendCmd "$tag configure -specularLevel $val"
1603	}
1604	}
1605	specularExponent {
1606	if { $_first != "" } {
1607	set comp [lindex [$_first components] 0]
1608	set tag $_first-$comp
1609	set val $_settings($this-specularExponent)
1610	SendCmd "$tag configure -specularExp $val"
1611	}
1612	}
1613	light2side {
1614	if { $_first != "" } {
1615	set comp [lindex [$_first components] 0]
1616	set tag $_first-$comp
1617	set val $_settings($this-light2side)
1618	SendCmd "$tag configure -light2side $val"
1619	}
1620	}
1621	opacity {
1622	if { $_first != "" } {
1623	set comp [lindex [$_first components] 0]
1624	set tag $_first-$comp
1625	set opacity [expr { 0.01 * double($_settings($this-opacity)) }]
1626	SendCmd "$tag configure -opacity $opacity"
1627	}
1628	}
1629	thickness {
1630	if { $_first != "" && $_activeTf != "" } {
1631	set val $_settings($this-thickness)
1632	# Scale values between 0.00001 and 0.01000
1633	set sval [expr {0.0001*double($val)}]
1634	set tf $_activeTf
1635	set _settings($this-$tf-thickness) $sval
1636	updateTransferFunctions
1637	}
1638	}
1639	"outline" {
1640	if { $_first != "" } {
1641	set comp [lindex [$_first components] 0]
1642	set tag $_first-$comp
1643	SendCmd "$tag configure -outline $_settings($this-outline)"
1644	}
1645	}
1646	"isosurface" {
1647	if { [isconnected] } {
1648	SendCmd "volume shading isosurface $_settings($this-isosurface)"
1649	}
1650	}
1651	"grid" {
1652	if { [isconnected] } {
1653	SendCmd "grid visible $_settings($this-grid)"
1654	}
1655	}
1656	"axes" {
1657	if { [isconnected] } {
1658	SendCmd "axis visible $_settings($this-axes)"
1659	}
1660	}
1661	"legend" {
1662	if { $_settings($this-legend) } {
1663	blt::table $itk_component(plotarea) \
1664	0,0 $itk_component(3dview) -fill both \
1665	1,0 $itk_component(legend) -fill x
1666	blt::table configure $itk_component(plotarea) r1 -resize none
1667	} else {
1668	blt::table forget $itk_component(legend)
1669	}
1670	}
1671	"volume" {
1672	if { $_first != "" } {
1673	set comp [lindex [$_first components] 0]
1674	set tag $_first-$comp
1675	SendCmd "$tag configure -volume $_settings($this-volume)"
1676	}
1677	}
1678	"cutplaneVisible" {
1679	set bool $_settings($this-$what)
1680	set datasets [CurrentVolumeIds -cutplanes]
1681	set tag [lindex $datasets 0]
1682	SendCmd "cutplane visible $bool $tag"
1683	}
1684	"xcutplane" - "ycutplane" - "zcutplane" {
1685	set axis [string range $what 0 0]
1686	set bool $_settings($this-$what)
1687	if { [isconnected] } {
1688	set vols [CurrentVolumeIds -cutplanes]
1689	SendCmd "cutplane state $bool $axis $vols"
1690	}
1691	if { $bool } {
1692	$itk_component(${axis}CutScale) configure -state normal \
1693	-troughcolor white
1694	} else {
1695	$itk_component(${axis}CutScale) configure -state disabled \
1696	-troughcolor grey82
1697	}
1698	}
1699	default {
1700	error "don't know how to fix $what"
1701	}
1702	}
1703	}
1704
1705	# ----------------------------------------------------------------------
1706	# USAGE: ResizeLegend
1707	#
1708	# Used internally to update the legend area whenever it changes size
1709	# or when the field changes. Asks the server to send a new legend
1710	# for the current field.
1711	# ----------------------------------------------------------------------
1712	itcl::body Rappture::FlowvisViewer::ResizeLegend {} {
1713	set _resizeLegendPending 0
1714	set lineht [font metrics $itk_option(-font) -linespace]
1715	set w [expr {$_width-20}]
1716	set h [expr {[winfo height $itk_component(legend)]-20-$lineht}]
1717
1718	if { $_first == "" } {
1719	return
1720	}
1721	set comp [lindex [$_first components] 0]
1722	set tag $_first-$comp
1723	#set _activeTf [lindex $_obj2style($tag) 0]
1724	if {$w > 0 && $h > 0 && "" != $_activeTf} {
1725	#SendCmd "legend $_activeTf $w $h"
1726	SendCmd "$tag legend $w $h"
1727	} else {
1728	# Can't do this as this will remove the items associated with the
1729	# isomarkers.
1730
1731	#$itk_component(legend) delete all
1732	}
1733	}
1734
1735	#
1736	# NameTransferFunc --
1737	#
1738	# Creates a transfer function name based on the <style> settings in the
1739	# library run.xml file. This placeholder will be used later to create
1740	# and send the actual transfer function once the data info has been sent
1741	# to us by the render server. [We won't know the volume limits until the
1742	# server parses the 3D data and sends back the limits via ReceiveData.]
1743	#
1744	# FIXME: The current way we generate transfer-function names completely
1745	# ignores the -markers option. The problem is that we are forced
1746	# to compute the name from an increasing complex set of values:
1747	# color, levels, marker, opacity. I think we're stuck doing it
1748	# now.
1749	#
1750	itcl::body Rappture::FlowvisViewer::NameTransferFunc { dataobj cname } {
1751	array set styles {
1752	-color BCGYR
1753	-levels 6
1754	-opacity 0.5
1755	}
1756	array set styles [lindex [$dataobj components -style $cname] 0]
1757	set _settings($this-opacity) [expr $styles(-opacity) * 100]
1758	set _obj2style($dataobj-$cname) $cname
1759	lappend _style2objs($cname) $dataobj $cname
1760	return $cname
1761	}
1762
1763	#
1764	# ComputeTransferFunc --
1765	#
1766	# Computes and sends the transfer function to the render server. It's
1767	# assumed that the volume data limits are known and that the global
1768	# transfer-functions slider values have be setup. Both parts are
1769	# needed to compute the relative value (location) of the marker, and
1770	# the alpha map of the transfer function.
1771	#
1772	itcl::body Rappture::FlowvisViewer::ComputeTransferFunc { tf } {
1773	array set styles {
1774	-color BCGYR
1775	-levels 6
1776	-opacity 0.5
1777	}
1778	set dataobj ""; set comp ""
1779	foreach {dataobj comp} $_style2objs($tf) break
1780	if { $dataobj == "" } {
1781	return 0
1782	}
1783	array set styles [lindex [$dataobj components -style $comp] 0]
1784
1785	# We have to parse the style attributes for a volume using this
1786	# transfer-function once. This sets up the initial isomarkers for the
1787	# transfer function. The user may add/delete markers, so we have to
1788	# maintain a list of markers for each transfer-function. We use the one
1789	# of the volumes (the first in the list) using the transfer-function as a
1790	# reference.
1791	#
1792	# FIXME: The current way we generate transfer-function names completely
1793	# ignores the -markers option. The problem is that we are forced
1794	# to compute the name from an increasing complex set of values:
1795	# color, levels, marker, opacity. I think the cow's out of the
1796	# barn on this one.
1797
1798	if { ![info exists _isomarkers($tf)] } {
1799	# Have to defer creation of isomarkers until we have data limits
1800	if { [info exists styles(-markers)] &&
1801	[llength $styles(-markers)] > 0 } {
1802	ParseMarkersOption $tf $styles(-markers)
1803	} else {
1804	ParseLevelsOption $tf $styles(-levels)
1805	}
1806	}
1807	if { [info exists styles(-nonuniformcolors)] } {
1808	foreach { value color } $styles(-nonuniformcolors) {
1809	append cmap "$value [Color2RGB $color] "
1810	}
1811	} else {
1812	set cmap [ColorsToColormap $styles(-color)]
1813	}
1814
1815	if { ![info exists _settings($this-opacity)] } {
1816	set _settings($this-opacity) [expr $styles(-opacity) * 100]
1817	}
1818
1819	# Transfer function should be normalized with [0,1] range
1820	# The volume shading opacity setting is used to scale opacity
1821	# in the volume shader.
1822	set max 1.0
1823
1824	set isovalues {}
1825	foreach m $_isomarkers($tf) {
1826	lappend isovalues [$m relval]
1827	}
1828	# Sort the isovalues
1829	set isovalues [lsort -real $isovalues]
1830
1831	set tag $this-$tf
1832	if { ![info exists _settings($tag-thickness)]} {
1833	set _settings($tag-thickness) 0.005
1834	}
1835	set delta $_settings($tag-thickness)
1836
1837	set first [lindex $isovalues 0]
1838	set last [lindex $isovalues end]
1839	set wmap ""
1840	if { $first == "" \|\| $first != 0.0 } {
1841	lappend wmap 0.0 0.0
1842	}
1843	foreach x $isovalues {
1844	set x1 [expr {$x-$delta-0.00001}]
1845	set x2 [expr {$x-$delta}]
1846	set x3 [expr {$x+$delta}]
1847	set x4 [expr {$x+$delta+0.00001}]
1848	if { $x1 < 0.0 } {
1849	set x1 0.0
1850	} elseif { $x1 > 1.0 } {
1851	set x1 1.0
1852	}
1853	if { $x2 < 0.0 } {
1854	set x2 0.0
1855	} elseif { $x2 > 1.0 } {
1856	set x2 1.0
1857	}
1858	if { $x3 < 0.0 } {
1859	set x3 0.0
1860	} elseif { $x3 > 1.0 } {
1861	set x3 1.0
1862	}
1863	if { $x4 < 0.0 } {
1864	set x4 0.0
1865	} elseif { $x4 > 1.0 } {
1866	set x4 1.0
1867	}
1868	# add spikes in the middle
1869	lappend wmap $x1 0.0
1870	lappend wmap $x2 $max
1871	lappend wmap $x3 $max
1872	lappend wmap $x4 0.0
1873	}
1874	if { $last == "" \|\| $last != 1.0 } {
1875	lappend wmap 1.0 0.0
1876	}
1877	SendCmd "transfunc define $tf { $cmap } { $wmap }"
1878	return [SendCmd "$dataobj-$comp configure -transferfunction $tf"]
1879	}
1880
1881	# ----------------------------------------------------------------------
1882	# CONFIGURATION OPTION: -plotbackground
1883	# ----------------------------------------------------------------------
1884	itcl::configbody Rappture::FlowvisViewer::plotbackground {
1885	if { [isconnected] } {
1886	set color $itk_option(-plotbackground)
1887	set rgb [Color2RGB $color]
1888	SendCmd "screen bgcolor $rgb"
1889	$itk_component(legend) configure -background $color
1890	}
1891	}
1892
1893	# ----------------------------------------------------------------------
1894	# CONFIGURATION OPTION: -plotforeground
1895	# ----------------------------------------------------------------------
1896	itcl::configbody Rappture::FlowvisViewer::plotforeground {
1897	if { [isconnected] } {
1898	set color $itk_option(-plotforeground)
1899	set rgb [Color2RGB $color]
1900	SendCmd "volume outline color $rgb"
1901	SendCmd "grid axiscolor $rgb"
1902	SendCmd "grid linecolor $rgb"
1903	$itk_component(legend) itemconfigure labels -fill $color
1904	$itk_component(legend) itemconfigure limits -fill $color
1905	}
1906	}
1907
1908	# ----------------------------------------------------------------------
1909	# CONFIGURATION OPTION: -plotoutline
1910	# ----------------------------------------------------------------------
1911	itcl::configbody Rappture::FlowvisViewer::plotoutline {
1912	# Must check if we are connected because this routine is called from the
1913	# class body when the -plotoutline itk_option is defined. At that point
1914	# the FlowvisViewer class constructor hasn't been called, so we can't
1915	# start sending commands to visualization server.
1916	if { [isconnected] } {
1917	if {"" == $itk_option(-plotoutline)} {
1918	SendCmd "volume outline state off"
1919	} else {
1920	SendCmd "volume outline state on"
1921	SendCmd "volume outline color [Color2RGB $itk_option(-plotoutline)]"
1922	}
1923	}
1924	}
1925
1926	#
1927	# The -levels option takes a single value that represents the number
1928	# of evenly distributed markers based on the current data range. Each
1929	# marker is a relative value from 0.0 to 1.0.
1930	#
1931	itcl::body Rappture::FlowvisViewer::ParseLevelsOption { tf levels } {
1932	set c $itk_component(legend)
1933	regsub -all "," $levels " " levels
1934	if {[string is int $levels]} {
1935	for {set i 1} { $i <= $levels } {incr i} {
1936	set x [expr {double($i)/($levels+1)}]
1937	set m [Rappture::IsoMarker \#auto $c $this $tf]
1938	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1939	$m relval $x
1940	lappend _isomarkers($tf) $m
1941	}
1942	} else {
1943	foreach x $levels {
1944	set m [Rappture::IsoMarker \#auto $c $this $tf]
1945	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1946	$m relval $x
1947	lappend _isomarkers($tf) $m
1948	}
1949	}
1950	}
1951
1952	#
1953	# The -markers option takes a list of zero or more values (the values
1954	# may be separated either by spaces or commas) that have the following
1955	# format:
1956	#
1957	# N% Percent of current total data range. Converted to
1958	# to a relative value between 0.0 and 1.0.
1959	# N Absolute value of marker. If the marker is outside of
1960	# the current range, it will be displayed on the outer
1961	# edge of the legends, but it range it represents will
1962	# not be seen.
1963	#
1964	itcl::body Rappture::FlowvisViewer::ParseMarkersOption { tf markers } {
1965	set c $itk_component(legend)
1966	regsub -all "," $markers " " markers
1967	foreach marker $markers {
1968	set n [scan $marker "%g%s" value suffix]
1969	if { $n == 2 && $suffix == "%" } {
1970	# ${n}% : Set relative value.
1971	set value [expr {$value * 0.01}]
1972	set m [Rappture::IsoMarker \#auto $c $this $tf]
1973	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1974	$m relval $value
1975	lappend _isomarkers($tf) $m
1976	} else {
1977	# ${n} : Set absolute value.
1978	set m [Rappture::IsoMarker \#auto $c $this $tf]
1979	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
1980	$m absval $value
1981	lappend _isomarkers($tf) $m
1982	}
1983	}
1984	}
1985
1986	# ----------------------------------------------------------------------
1987	# USAGE: UndateTransferFuncs
1988	# ----------------------------------------------------------------------
1989	itcl::body Rappture::FlowvisViewer::updateTransferFunctions {} {
1990	$_dispatcher event -after 100 !send_transfunc
1991	}
1992
1993	itcl::body Rappture::FlowvisViewer::AddIsoMarker { x y } {
1994	if { $_activeTf == "" } {
1995	error "active transfer function isn't set"
1996	}
1997	set tf $_activeTf
1998	set c $itk_component(legend)
1999	set m [Rappture::IsoMarker \#auto $c $this $tf]
2000	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
2001	set w [winfo width $c]
2002	$m relval [expr {double($x-10)/($w-20)}]
2003	lappend _isomarkers($tf) $m
2004	updateTransferFunctions
2005	return 1
2006	}
2007
2008	itcl::body Rappture::FlowvisViewer::removeDuplicateMarker { marker x } {
2009	set tf [$marker transferfunc]
2010	set bool 0
2011	if { [info exists _isomarkers($tf)] } {
2012	set list {}
2013	set marker [namespace tail $marker]
2014	foreach m $_isomarkers($tf) {
2015	set sx [$m screenpos]
2016	if { $m != $marker } {
2017	if { $x >= ($sx-3) && $x <= ($sx+3) } {
2018	$marker relval [$m relval]
2019	itcl::delete object $m
2020	bell
2021	set bool 1
2022	continue
2023	}
2024	}
2025	lappend list $m
2026	}
2027	set _isomarkers($tf) $list
2028	updateTransferFunctions
2029	}
2030	return $bool
2031	}
2032
2033	itcl::body Rappture::FlowvisViewer::overMarker { marker x } {
2034	set tf [$marker transferfunc]
2035	if { [info exists _isomarkers($tf)] } {
2036	set marker [namespace tail $marker]
2037	foreach m $_isomarkers($tf) {
2038	set sx [$m screenpos]
2039	if { $m != $marker } {
2040	set bool [expr { $x >= ($sx-3) && $x <= ($sx+3) }]
2041	$m activate $bool
2042	}
2043	}
2044	}
2045	return ""
2046	}
2047
2048	itcl::body Rappture::FlowvisViewer::limits { cname } {
2049	set _limits(v) [list 0.0 1.0]
2050	if { ![info exists _style2objs($cname)] } {
2051	puts stderr "no style2objs for $cname cname=($cname)"
2052	return [array get _limits]
2053	}
2054	set min ""; set max ""
2055	foreach tag [GetDatasetsWithComponent $cname] {
2056	if { ![info exists _serverObjs($tag)] } {
2057	puts stderr "$tag not in serverObjs?"
2058	continue
2059	}
2060	if { ![info exists _limits($tag)] } {
2061	puts stderr "$tag no min?"
2062	continue
2063	}
2064	foreach {vmin vmax} $_limits($tag) break
2065	if { $min == "" \|\| $min > $vmin } {
2066	set min $vmin
2067	}
2068	if { $max == "" \|\| $max < $vmax } {
2069	set max $vmax
2070	}
2071	}
2072	if { $min != "" && $max != "" } {
2073	set _limits(v) [list $min $max]
2074	set _limits($cname) [list $min $max]
2075	}
2076	return $_limits($cname)
2077	}
2078
2079	itcl::body Rappture::FlowvisViewer::BuildViewTab {} {
2080	foreach { key value } {
2081	grid 0
2082	axes 0
2083	outline 1
2084	volume 1
2085	legend 1
2086	particles 1
2087	lic 1
2088	} {
2089	set _settings($this-$key) $value
2090	}
2091
2092	set fg [option get $itk_component(hull) font Font]
2093	#set bfg [option get $itk_component(hull) boldFont Font]
2094
2095	set inner [$itk_component(main) insert end \
2096	-title "View Settings" \
2097	-icon [Rappture::icon wrench]]
2098	$inner configure -borderwidth 4
2099
2100	set ::Rappture::FlowvisViewer::_settings($this-isosurface) 0
2101	checkbutton $inner.isosurface \
2102	-text "Isosurface shading" \
2103	-variable [itcl::scope _settings($this-isosurface)] \
2104	-command [itcl::code $this AdjustSetting isosurface] \
2105	-font "Arial 9"
2106
2107	checkbutton $inner.axes \
2108	-text "Axes" \
2109	-variable [itcl::scope _settings($this-axes)] \
2110	-command [itcl::code $this AdjustSetting axes] \
2111	-font "Arial 9"
2112
2113	checkbutton $inner.grid \
2114	-text "Grid" \
2115	-variable [itcl::scope _settings($this-grid)] \
2116	-command [itcl::code $this AdjustSetting grid] \
2117	-font "Arial 9"
2118
2119	checkbutton $inner.outline \
2120	-text "Outline" \
2121	-variable [itcl::scope _settings($this-outline)] \
2122	-command [itcl::code $this AdjustSetting outline] \
2123	-font "Arial 9"
2124
2125	checkbutton $inner.legend \
2126	-text "Legend" \
2127	-variable [itcl::scope _settings($this-legend)] \
2128	-command [itcl::code $this AdjustSetting legend] \
2129	-font "Arial 9"
2130
2131	checkbutton $inner.volume \
2132	-text "Volume" \
2133	-variable [itcl::scope _settings($this-volume)] \
2134	-command [itcl::code $this AdjustSetting volume] \
2135	-font "Arial 9"
2136
2137	checkbutton $inner.particles \
2138	-text "Particles" \
2139	-variable [itcl::scope _settings($this-particles)] \
2140	-command [itcl::code $this AdjustSetting particles] \
2141	-font "Arial 9"
2142
2143	checkbutton $inner.lic \
2144	-text "Lic" \
2145	-variable [itcl::scope _settings($this-lic)] \
2146	-command [itcl::code $this AdjustSetting lic] \
2147	-font "Arial 9"
2148
2149	frame $inner.frame
2150
2151	blt::table $inner \
2152	0,0 $inner.axes -cspan 2 -anchor w \
2153	1,0 $inner.grid -cspan 2 -anchor w \
2154	2,0 $inner.outline -cspan 2 -anchor w \
2155	3,0 $inner.volume -cspan 2 -anchor w \
2156	4,0 $inner.legend -cspan 2 -anchor w
2157
2158	bind $inner <Map> [itcl::code $this GetFlowInfo $inner]
2159
2160	blt::table configure $inner r* -resize none
2161	blt::table configure $inner r5 -resize expand
2162	}
2163
2164	itcl::body Rappture::FlowvisViewer::BuildVolumeTab {} {
2165	set inner [$itk_component(main) insert end \
2166	-title "Volume Settings" \
2167	-icon [Rappture::icon volume-on]]
2168	$inner configure -borderwidth 4
2169
2170	set fg [option get $itk_component(hull) font Font]
2171	#set bfg [option get $itk_component(hull) boldFont Font]
2172
2173	checkbutton $inner.vol -text "Show volume" -font $fg \
2174	-text "Volume" \
2175	-variable [itcl::scope _settings($this-volume)] \
2176	-command [itcl::code $this AdjustSetting volume] \
2177	-font "Arial 9"
2178
2179	label $inner.shading -text "Shading:" -font $fg
2180
2181	checkbutton $inner.light2side -text "Two-sided lighting" -font $fg \
2182	-variable [itcl::scope _settings($this-light2side)] \
2183	-command [itcl::code $this AdjustSetting light2side]
2184
2185	label $inner.ambient_l -text "Ambient" -font $fg
2186	::scale $inner.ambient -from 0 -to 100 -orient horizontal \
2187	-variable [itcl::scope _settings($this-ambient)] \
2188	-width 10 \
2189	-showvalue off -command [itcl::code $this AdjustSetting ambient]
2190
2191	label $inner.diffuse_l -text "Diffuse" -font $fg
2192	::scale $inner.diffuse -from 0 -to 100 -orient horizontal \
2193	-variable [itcl::scope _settings($this-diffuse)] \
2194	-width 10 \
2195	-showvalue off -command [itcl::code $this AdjustSetting diffuse]
2196
2197	label $inner.specularLevel_l -text "Specular" -font $fg
2198	::scale $inner.specularLevel -from 0 -to 100 -orient horizontal \
2199	-variable [itcl::scope _settings($this-specularLevel)] \
2200	-width 10 \
2201	-showvalue off -command [itcl::code $this AdjustSetting specularLevel]
2202
2203	label $inner.specularExponent_l -text "Shininess" -font $fg
2204	::scale $inner.specularExponent -from 10 -to 128 -orient horizontal \
2205	-variable [itcl::scope _settings($this-specularExponent)] \
2206	-width 10 \
2207	-showvalue off -command [itcl::code $this AdjustSetting specularExponent]
2208
2209	label $inner.clear -text "Clear" -font $fg
2210	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2211	-variable [itcl::scope _settings($this-opacity)] \
2212	-width 10 \
2213	-showvalue off -command [itcl::code $this AdjustSetting opacity]
2214	label $inner.opaque -text "Opaque" -font $fg
2215
2216	label $inner.thin -text "Thin" -font $fg
2217	::scale $inner.thickness -from 0 -to 1000 -orient horizontal \
2218	-variable [itcl::scope _settings($this-thickness)] \
2219	-width 10 \
2220	-showvalue off -command [itcl::code $this AdjustSetting thickness]
2221	label $inner.thick -text "Thick" -font $fg
2222
2223	label $inner.colormap_l -text "Colormap" -font "Arial 9"
2224	itk_component add colormap {
2225	Rappture::Combobox $inner.colormap -width 10 -editable no
2226	}
2227	$inner.colormap choices insert end [GetColormapList -includeNone]
2228	$itk_component(colormap) value "BCGYR"
2229	bind $inner.colormap <<Value>> \
2230	[itcl::code $this AdjustSetting colormap]
2231
2232	blt::table $inner \
2233	0,0 $inner.vol -cspan 4 -anchor w -pady 2 \
2234	1,0 $inner.shading -cspan 4 -anchor w -pady {10 2} \
2235	2,0 $inner.light2side -cspan 4 -anchor w -pady 2 \
2236	3,0 $inner.ambient_l -anchor e -pady 2 \
2237	3,1 $inner.ambient -cspan 3 -pady 2 -fill x \
2238	4,0 $inner.diffuse_l -anchor e -pady 2 \
2239	4,1 $inner.diffuse -cspan 3 -pady 2 -fill x \
2240	5,0 $inner.specularLevel_l -anchor e -pady 2 \
2241	5,1 $inner.specularLevel -cspan 3 -pady 2 -fill x \
2242	6,0 $inner.specularExponent_l -anchor e -pady 2 \
2243	6,1 $inner.specularExponent -cspan 3 -pady 2 -fill x \
2244	7,0 $inner.clear -anchor e -pady 2 \
2245	7,1 $inner.opacity -cspan 2 -pady 2 -fill x \
2246	7,3 $inner.opaque -anchor w -pady 2 \
2247	8,0 $inner.thin -anchor e -pady 2 \
2248	8,1 $inner.thickness -cspan 2 -pady 2 -fill x \
2249	8,3 $inner.thick -anchor w -pady 2
2250
2251	blt::table configure $inner c0 c1 c3 r* -resize none
2252	blt::table configure $inner r9 -resize expand
2253	}
2254
2255	itcl::body Rappture::FlowvisViewer::BuildCutplanesTab {} {
2256	set inner [$itk_component(main) insert end \
2257	-title "Cutplane Settings" \
2258	-icon [Rappture::icon cutbutton]]
2259	$inner configure -borderwidth 4
2260
2261	# X-value slicer...
2262	itk_component add xCutButton {
2263	Rappture::PushButton $inner.xbutton \
2264	-onimage [Rappture::icon x-cutplane] \
2265	-offimage [Rappture::icon x-cutplane] \
2266	-command [itcl::code $this AdjustSetting xcutplane] \
2267	-variable [itcl::scope _settings($this-xcutplane)]
2268	}
2269	Rappture::Tooltip::for $itk_component(xCutButton) \
2270	"Toggle the X cut plane on/off"
2271	$itk_component(xCutButton) select
2272
2273	itk_component add xCutScale {
2274	::scale $inner.xval -from 100 -to 0 \
2275	-width 10 -orient vertical -showvalue off \
2276	-borderwidth 1 -highlightthickness 0 \
2277	-command [itcl::code $this Slice move x] \
2278	-variable [itcl::scope _settings($this-xcutposition)]
2279	} {
2280	usual
2281	ignore -borderwidth -highlightthickness
2282	}
2283	# Set the default cutplane value before disabling the scale.
2284	$itk_component(xCutScale) set 50
2285	$itk_component(xCutScale) configure -state disabled
2286	Rappture::Tooltip::for $itk_component(xCutScale) \
2287	"@[itcl::code $this SlicerTip x]"
2288
2289	# Y-value slicer...
2290	itk_component add yCutButton {
2291	Rappture::PushButton $inner.ybutton \
2292	-onimage [Rappture::icon y-cutplane] \
2293	-offimage [Rappture::icon y-cutplane] \
2294	-command [itcl::code $this AdjustSetting ycutplane] \
2295	-variable [itcl::scope _settings($this-ycutplane)]
2296	}
2297	Rappture::Tooltip::for $itk_component(yCutButton) \
2298	"Toggle the Y cut plane on/off"
2299	$itk_component(yCutButton) select
2300
2301	itk_component add yCutScale {
2302	::scale $inner.yval -from 100 -to 0 \
2303	-width 10 -orient vertical -showvalue off \
2304	-borderwidth 1 -highlightthickness 0 \
2305	-command [itcl::code $this Slice move y] \
2306	-variable [itcl::scope _settings($this-ycutposition)]
2307	} {
2308	usual
2309	ignore -borderwidth -highlightthickness
2310	}
2311	Rappture::Tooltip::for $itk_component(yCutScale) \
2312	"@[itcl::code $this SlicerTip y]"
2313	# Set the default cutplane value before disabling the scale.
2314	$itk_component(yCutScale) set 50
2315	$itk_component(yCutScale) configure -state disabled
2316
2317	# Z-value slicer...
2318	itk_component add zCutButton {
2319	Rappture::PushButton $inner.zbutton \
2320	-onimage [Rappture::icon z-cutplane] \
2321	-offimage [Rappture::icon z-cutplane] \
2322	-command [itcl::code $this AdjustSetting zcutplane] \
2323	-variable [itcl::scope _settings($this-zcutplane)]
2324	}
2325	Rappture::Tooltip::for $itk_component(zCutButton) \
2326	"Toggle the Z cut plane on/off"
2327	$itk_component(zCutButton) select
2328
2329	itk_component add zCutScale {
2330	::scale $inner.zval -from 100 -to 0 \
2331	-width 10 -orient vertical -showvalue off \
2332	-borderwidth 1 -highlightthickness 0 \
2333	-command [itcl::code $this Slice move z] \
2334	-variable [itcl::scope _settings($this-zcutposition)]
2335	} {
2336	usual
2337	ignore -borderwidth -highlightthickness
2338	}
2339	$itk_component(zCutScale) set 50
2340	$itk_component(zCutScale) configure -state disabled
2341	#$itk_component(zCutScale) configure -state disabled
2342	Rappture::Tooltip::for $itk_component(zCutScale) \
2343	"@[itcl::code $this SlicerTip z]"
2344
2345	blt::table $inner \
2346	1,1 $itk_component(xCutButton) \
2347	1,2 $itk_component(yCutButton) \
2348	1,3 $itk_component(zCutButton) \
2349	0,1 $itk_component(xCutScale) \
2350	0,2 $itk_component(yCutScale) \
2351	0,3 $itk_component(zCutScale) \
2352
2353	blt::table configure $inner r0 r1 c* -resize none
2354	blt::table configure $inner r2 c4 -resize expand
2355	blt::table configure $inner c0 -width 2
2356	blt::table configure $inner c1 c2 c3 -padx 2
2357	}
2358
2359	itcl::body Rappture::FlowvisViewer::BuildCameraTab {} {
2360	set inner [$itk_component(main) insert end \
2361	-title "Camera Settings" \
2362	-icon [Rappture::icon camera]]
2363	$inner configure -borderwidth 4
2364
2365	label $inner.view_l -text "view" -font "Arial 9"
2366	set f [frame $inner.view]
2367	foreach side { front back left right top bottom } {
2368	button $f.$side -image [Rappture::icon view$side] \
2369	-command [itcl::code $this SetOrientation $side]
2370	Rappture::Tooltip::for $f.$side "Change the view to $side"
2371	pack $f.$side -side left
2372	}
2373
2374	blt::table $inner \
2375	0,0 $inner.view_l -anchor e -pady 2 \
2376	0,1 $inner.view -anchor w -pady 2
2377
2378	set row 1
2379	set labels { qw qx qy qz xpan ypan zoom }
2380	foreach tag $labels {
2381	label $inner.${tag}label -text $tag -font "Arial 9"
2382	entry $inner.${tag} -font "Arial 9" -bg white \
2383	-textvariable [itcl::scope _settings($this-$tag)]
2384	bind $inner.${tag} <KeyPress-Return> \
2385	[itcl::code $this camera set ${tag}]
2386	blt::table $inner \
2387	$row,0 $inner.${tag}label -anchor e -pady 2 \
2388	$row,1 $inner.${tag} -anchor w -pady 2
2389	blt::table configure $inner r$row -resize none
2390	incr row
2391	}
2392
2393	blt::table configure $inner c* r* -resize none
2394	blt::table configure $inner c2 -resize expand
2395	blt::table configure $inner r$row -resize expand
2396	}
2397
2398	itcl::body Rappture::FlowvisViewer::GetFlowInfo { w } {
2399	set flowobj ""
2400	foreach key [array names _obj2flow] {
2401	set flowobj $_obj2flow($key)
2402	break
2403	}
2404	if { $flowobj == "" } {
2405	return
2406	}
2407	if { [winfo exists $w.frame] } {
2408	destroy $w.frame
2409	}
2410	set inner [frame $w.frame]
2411	blt::table $w \
2412	5,0 $inner -fill both -cspan 2 -anchor nw
2413	array set hints [$flowobj hints]
2414	checkbutton $inner.showstreams -text "Streams Plane" \
2415	-variable [itcl::scope _settings($this-streams)] \
2416	-command [itcl::code $this streams $key $hints(name)] \
2417	-font "Arial 9"
2418	Rappture::Tooltip::for $inner.showstreams $hints(description)
2419
2420	checkbutton $inner.showarrows -text "Arrows" \
2421	-variable [itcl::scope _settings($this-arrows)] \
2422	-command [itcl::code $this arrows $key $hints(name)] \
2423	-font "Arial 9"
2424
2425	label $inner.particles -text "Particles" -font "Arial 9 bold"
2426	label $inner.boxes -text "Boxes" -font "Arial 9 bold"
2427
2428	blt::table $inner \
2429	1,0 $inner.showstreams -anchor w \
2430	2,0 $inner.showarrows -anchor w
2431	blt::table configure $inner c0 c1 -resize none
2432	blt::table configure $inner c2 -resize expand
2433
2434	set row 3
2435	set particles [$flowobj particles]
2436	if { [llength $particles] > 0 } {
2437	blt::table $inner $row,0 $inner.particles -anchor w
2438	incr row
2439	}
2440	foreach part $particles {
2441	array unset info
2442	array set info $part
2443	set name $info(name)
2444	if { ![info exists _settings($this-particles-$name)] } {
2445	set _settings($this-particles-$name) $info(hide)
2446	}
2447	checkbutton $inner.part$row -text $info(label) \
2448	-variable [itcl::scope _settings($this-particles-$name)] \
2449	-onvalue 0 -offvalue 1 \
2450	-command [itcl::code $this particles $key $name] \
2451	-font "Arial 9"
2452	Rappture::Tooltip::for $inner.part$row $info(description)
2453	blt::table $inner $row,0 $inner.part$row -anchor w
2454	if { !$_settings($this-particles-$name) } {
2455	$inner.part$row select
2456	}
2457	incr row
2458	}
2459	set boxes [$flowobj boxes]
2460	if { [llength $boxes] > 0 } {
2461	blt::table $inner $row,0 $inner.boxes -anchor w
2462	incr row
2463	}
2464	foreach box $boxes {
2465	array unset info
2466	array set info $box
2467	set name $info(name)
2468	if { ![info exists _settings($this-box-$name)] } {
2469	set _settings($this-box-$name) $info(hide)
2470	}
2471	checkbutton $inner.box$row -text $info(label) \
2472	-variable [itcl::scope _settings($this-box-$name)] \
2473	-onvalue 0 -offvalue 1 \
2474	-command [itcl::code $this box $key $name] \
2475	-font "Arial 9"
2476	Rappture::Tooltip::for $inner.box$row $info(description)
2477	blt::table $inner $row,0 $inner.box$row -anchor w
2478	if { !$_settings($this-box-$name) } {
2479	$inner.box$row select
2480	}
2481	incr row
2482	}
2483	blt::table configure $inner r* -resize none
2484	blt::table configure $inner r$row -resize expand
2485	blt::table configure $inner c3 -resize expand
2486	event generate [winfo parent [winfo parent $w]] <Configure>
2487	}
2488
2489	itcl::body Rappture::FlowvisViewer::particles { tag name } {
2490	set bool $_settings($this-particles-$name)
2491	SendCmd "$tag particles configure {$name} -hide $bool"
2492	}
2493
2494	itcl::body Rappture::FlowvisViewer::box { tag name } {
2495	set bool $_settings($this-box-$name)
2496	SendCmd "$tag box configure {$name} -hide $bool"
2497	}
2498
2499	itcl::body Rappture::FlowvisViewer::streams { tag name } {
2500	set bool $_settings($this-streams)
2501	SendCmd "$tag configure -slice $bool"
2502	}
2503
2504	itcl::body Rappture::FlowvisViewer::arrows { tag name } {
2505	set bool $_settings($this-arrows)
2506	SendCmd "$tag configure -arrows $bool"
2507	}
2508
2509	# ----------------------------------------------------------------------
2510	# USAGE: Slice move x\|y\|z <newval>
2511	#
2512	# Called automatically when the user drags the slider to move the
2513	# cut plane that slices 3D data. Gets the current value from the
2514	# slider and moves the cut plane to the appropriate point in the
2515	# data set.
2516	# ----------------------------------------------------------------------
2517	itcl::body Rappture::FlowvisViewer::Slice {option args} {
2518	switch -- $option {
2519	move {
2520	if {[llength $args] != 2} {
2521	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2522	}
2523	set axis [lindex $args 0]
2524	set newval [lindex $args 1]
2525	set newpos [expr {0.01*$newval}]
2526
2527	# show the current value in the readout
2528
2529	set ids [CurrentVolumeIds -cutplanes]
2530	SendCmd "cutplane position $newpos $axis $ids"
2531	}
2532	default {
2533	error "bad option \"$option\": should be axis, move, or volume"
2534	}
2535	}
2536	}
2537
2538	# ----------------------------------------------------------------------
2539	# USAGE: SlicerTip <axis>
2540	#
2541	# Used internally to generate a tooltip for the x/y/z slicer controls.
2542	# Returns a message that includes the current slicer value.
2543	# ----------------------------------------------------------------------
2544	itcl::body Rappture::FlowvisViewer::SlicerTip {axis} {
2545	set val [$itk_component(${axis}CutScale) get]
2546	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2547	}
2548
2549	itcl::body Rappture::FlowvisViewer::Resize {} {
2550	$_arcball resize $_width $_height
2551	SendCmd "screen size $_width $_height"
2552	set _resizePending 0
2553	}
2554
2555	itcl::body Rappture::FlowvisViewer::EventuallyResize { w h } {
2556	set _width $w
2557	set _height $h
2558	$_arcball resize $w $h
2559	if { !$_resizePending } {
2560	$_dispatcher event -after 200 !resize
2561	set _resizePending 1
2562	}
2563	}
2564
2565	itcl::body Rappture::FlowvisViewer::EventuallyResizeLegend {} {
2566	if { !$_resizeLegendPending } {
2567	$_dispatcher event -after 100 !legend
2568	set _resizeLegendPending 1
2569	}
2570	}
2571
2572	itcl::body Rappture::FlowvisViewer::EventuallyGoto { nSteps } {
2573	set _flow(goto) $nSteps
2574	if { !$_gotoPending } {
2575	$_dispatcher event -after 1000 !goto
2576	set _gotoPending 1
2577	}
2578	}
2579
2580	# camera --
2581	itcl::body Rappture::FlowvisViewer::camera {option args} {
2582	switch -- $option {
2583	"show" {
2584	puts [array get _view]
2585	}
2586	"set" {
2587	set who [lindex $args 0]
2588	set x $_settings($this-$who)
2589	set code [catch { string is double $x } result]
2590	if { $code != 0 \|\| !$result } {
2591	set _settings($this-$who) $_view($who)
2592	return
2593	}
2594	switch -- $who {
2595	"xpan" - "ypan" {
2596	set _view($who) $_settings($this-$who)
2597	PanCamera
2598	}
2599	"qx" - "qy" - "qz" - "qw" {
2600	set _view($who) $_settings($this-$who)
2601	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2602	$_arcball quaternion $q
2603	SendCmd "camera orient $q"
2604	}
2605	"zoom" {
2606	set _view($who) $_settings($this-$who)
2607	SendCmd "camera zoom $_view(zoom)"
2608	}
2609	}
2610	}
2611	}
2612	}
2613
2614	itcl::body Rappture::FlowvisViewer::FlowCmd { dataobj comp nbytes extents } {
2615	set tag "$dataobj-$comp"
2616	if { ![info exists _obj2flow($tag)] } {
2617	append cmd "flow add $tag\n"
2618	append cmd "$tag data follows $nbytes $extents\n"
2619	return $cmd
2620	}
2621	set flowobj $_obj2flow($tag)
2622	if { $flowobj == "" } {
2623	puts stderr "no flowobj"
2624	return ""
2625	}
2626	set cmd {}
2627	append cmd "if {\[flow exists $tag\]} {flow delete $tag}\n"
2628	array set info [$flowobj hints]
2629	set _settings($this-volume) $info(volume)
2630	set _settings($this-outline) $info(outline)
2631	set _settings($this-arrows) $info(arrows)
2632	set _settings($this-duration) $info(duration)
2633	$itk_component(speed) value $info(speed)
2634	append cmd "flow add $tag"
2635	append cmd " -position $info(position)"
2636	append cmd " -axis $info(axis)"
2637	append cmd " -volume $info(volume)"
2638	append cmd " -outline $info(outline)"
2639	append cmd " -slice $info(streams)"
2640	append cmd " -arrows $info(arrows)\n"
2641	foreach part [$flowobj particles] {
2642	array unset info
2643	array set info $part
2644	set color [Color2RGB $info(color)]
2645	append cmd "$tag particles add $info(name)"
2646	append cmd " -position $info(position)"
2647	append cmd " -hide $info(hide)"
2648	append cmd " -axis $info(axis)"
2649	append cmd " -color {$color}"
2650	append cmd " -size $info(size)\n"
2651	}
2652	foreach box [$flowobj boxes] {
2653	array unset info
2654	set info(corner1) ""
2655	set info(corner2) ""
2656	array set info $box
2657	if { $info(corner1) == "" \|\| $info(corner2) == "" } {
2658	continue
2659	}
2660	set color [Color2RGB $info(color)]
2661	append cmd "$tag box add $info(name)"
2662	append cmd " -color {$color}"
2663	append cmd " -hide $info(hide)"
2664	append cmd " -linewidth $info(linewidth) "
2665	append cmd " -corner1 {$info(corner1)} "
2666	append cmd " -corner2 {$info(corner2)}\n"
2667	}
2668	append cmd "$tag data follows $nbytes $extents\n"
2669	return $cmd
2670	}
2671
2672
2673	#
2674	# flow --
2675	#
2676	# Called when the user clicks on the stop or play buttons
2677	# for flow visualization.
2678	#
2679	# $this flow play
2680	# $this flow stop
2681	# $this flow toggle
2682	# $this flow reset
2683	# $this flow pause
2684	# $this flow next
2685	#
2686	itcl::body Rappture::FlowvisViewer::flow { args } {
2687	set option [lindex $args 0]
2688	switch -- $option {
2689	"goto2" {
2690	puts stderr "actually sending \"flow goto $_flow(goto)\""
2691	SendCmd "flow goto $_flow(goto)"
2692	set _gotoPending 0
2693	}
2694	"goto" {
2695	puts stderr "flow goto to $_settings($this-currenttime)"
2696	# Figure out how many steps to the current time based upon
2697	# the speed and duration.
2698	set current $_settings($this-currenttime)
2699	set speed [$itk_component(speed) value]
2700	set time [str2millisecs $_settings($this-duration)]
2701	$itk_component(dial) configure -max $time
2702	set delay [expr int(round(500.0/$speed))]
2703	set timePerStep [expr {double($time) / $delay}]
2704	set nSteps [expr {int(ceil($current/$timePerStep))}]
2705	EventuallyGoto $nSteps
2706	}
2707	"speed" {
2708	set speed [$itk_component(speed) value]
2709	set _flow(delay) [expr int(round(500.0/$speed))]
2710	}
2711	"duration" {
2712	set max [str2millisecs $_settings($this-duration)]
2713	if { $max < 0 } {
2714	bell
2715	return
2716	}
2717	set _flow(duration) $max
2718	set _settings($this-duration) [millisecs2str $max]
2719	$itk_component(dial) configure -max $max
2720	}
2721	"off" {
2722	set _flow(state) 0
2723	$_dispatcher cancel !play
2724	$itk_component(play) deselect
2725	}
2726	"on" {
2727	flow speed
2728	flow duration
2729	set _flow(state) 1
2730	set _settings($this-currenttime) 0
2731	$itk_component(play) select
2732	}
2733	"stop" {
2734	if { $_flow(state) } {
2735	flow off
2736	flow reset
2737	}
2738	}
2739	"pause" {
2740	if { $_flow(state) } {
2741	flow off
2742	}
2743	}
2744	"play" {
2745	# If the flow is currently off, then restart it.
2746	if { !$_flow(state) } {
2747	flow on
2748	# If we're at the end of the flow, reset the flow.
2749	set _settings($this-currenttime) \
2750	[expr {$_settings($this-currenttime) + $_flow(delay)}]
2751	if { $_settings($this-currenttime) >= $_flow(duration) } {
2752	set _settings($this-step) 1
2753	SendCmd "flow reset"
2754	}
2755	flow next
2756	}
2757	}
2758	"toggle" {
2759	if { $_settings($this-play) } {
2760	flow play
2761	} else {
2762	flow pause
2763	}
2764	}
2765	"reset" {
2766	set _settings($this-currenttime) 0
2767	SendCmd "flow reset"
2768	}
2769	"next" {
2770	if { ![winfo viewable $itk_component(3dview)] } {
2771	flow stop
2772	return
2773	}
2774	set _settings($this-currenttime) \
2775	[expr {$_settings($this-currenttime) + $_flow(delay)}]
2776	if { $_settings($this-currenttime) >= $_flow(duration) } {
2777	if { !$_settings($this-loop) } {
2778	flow off
2779	return
2780	}
2781	flow reset
2782	} else {
2783	SendCmd "flow next"
2784	}
2785	$_dispatcher event -after $_flow(delay) !play
2786	}
2787	default {
2788	error "bad option \"$option\": should be play, stop, toggle, or reset."
2789	}
2790	}
2791	}
2792
2793	itcl::body Rappture::FlowvisViewer::WaitIcon { option widget } {
2794	switch -- $option {
2795	"start" {
2796	$_dispatcher dispatch $this !waiticon \
2797	"[itcl::code $this WaitIcon "next" $widget] ; list"
2798	set _icon 0
2799	$widget configure -image [Rappture::icon bigroller${_icon}]
2800	$_dispatcher event -after 100 !waiticon
2801	}
2802	"next" {
2803	incr _icon
2804	if { $_icon >= 8 } {
2805	set _icon 0
2806	}
2807	$widget configure -image [Rappture::icon bigroller${_icon}]
2808	$_dispatcher event -after 100 !waiticon
2809	}
2810	"stop" {
2811	$_dispatcher cancel !waiticon
2812	}
2813	}
2814	}
2815
2816	itcl::body Rappture::FlowvisViewer::GetPngImage { widget width height } {
2817	set token "print[incr _nextToken]"
2818	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
2819	set $var ""
2820
2821	# Setup an automatic timeout procedure.
2822	$_dispatcher dispatch $this !pngtimeout "set $var {} ; list"
2823
2824	set popup .flowvisviewerprint
2825	if {![winfo exists $popup]} {
2826	Rappture::Balloon $popup -title "Generating file..."
2827	set inner [$popup component inner]
2828	label $inner.title -text "Generating hardcopy." -font "Arial 10 bold"
2829	label $inner.please -text "This may take a minute." -font "Arial 10"
2830	label $inner.icon -image [Rappture::icon bigroller0]
2831	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
2832	-command [list set $var ""]
2833	blt::table $inner \
2834	0,0 $inner.title -cspan 2 \
2835	1,0 $inner.please -anchor w \
2836	1,1 $inner.icon -anchor e \
2837	2,0 $inner.cancel -cspan 2
2838	blt::table configure $inner r0 -pady 4
2839	blt::table configure $inner r2 -pady 4
2840	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
2841	} else {
2842	set inner [$popup component inner]
2843	}
2844
2845	$_dispatcher event -after 60000 !pngtimeout
2846	WaitIcon start $inner.icon
2847	grab set $inner
2848	focus $inner.cancel
2849
2850	SendCmd "print $token $width $height"
2851
2852	$popup activate $widget below
2853	update idletasks
2854	update
2855	# We wait here for either
2856	# 1) the png to be delivered or
2857	# 2) timeout or
2858	# 3) user cancels the operation.
2859	tkwait variable $var
2860
2861	# Clean up.
2862	$_dispatcher cancel !pngtimeout
2863	WaitIcon stop $inner.icon
2864	grab release $inner
2865	$popup deactivate
2866	update
2867
2868	if { $_hardcopy($this-$token) != "" } {
2869	return [list .png $_hardcopy($this-$token)]
2870	}
2871	return ""
2872	}
2873
2874	itcl::body Rappture::FlowvisViewer::GetMovie { widget w h } {
2875	set token "movie[incr _nextToken]"
2876	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
2877	set $var ""
2878
2879	# Setup an automatic timeout procedure.
2880	$_dispatcher dispatch $this !movietimeout "set $var {} ; list"
2881	set popup .flowvisviewermovie
2882	if {![winfo exists $popup]} {
2883	Rappture::Balloon $popup -title "Generating movie..."
2884	set inner [$popup component inner]
2885	label $inner.title -text "Generating movie for download" \
2886	-font "Arial 10 bold"
2887	label $inner.please -text "This may take a few minutes." \
2888	-font "Arial 10"
2889	label $inner.icon -image [Rappture::icon bigroller0]
2890	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
2891	-command [list set $var ""]
2892	blt::table $inner \
2893	0,0 $inner.title -cspan 2 \
2894	1,0 $inner.please -anchor w \
2895	1,1 $inner.icon -anchor e \
2896	2,0 $inner.cancel -cspan 2
2897	blt::table configure $inner r0 -pady 4
2898	blt::table configure $inner r2 -pady 4
2899	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
2900	} else {
2901	set inner [$popup component inner]
2902	}
2903	update
2904	# Timeout is set to 10 minutes.
2905	$_dispatcher event -after 600000 !movietimeout
2906	WaitIcon start $inner.icon
2907	grab set $inner
2908	focus $inner.cancel
2909
2910	flow duration
2911	flow speed
2912	set nframes [expr round($_flow(duration) / $_flow(delay))]
2913	set framerate [expr 1000.0 / $_flow(delay)]
2914
2915	# These are specific to MPEG1 video generation
2916	set framerate 25.0
2917	set bitrate 6.0e+6
2918
2919	set start [clock seconds]
2920	SendCmd "flow video $token -width $w -height $h -numframes $nframes "
2921
2922	$popup activate $widget below
2923	update idletasks
2924	update
2925	# We wait here until
2926	# 1. the movie is delivered or
2927	# 2. we've timed out or
2928	# 3. the user has canceled the operation.b
2929	tkwait variable $var
2930
2931	puts stderr "Video generated in [expr [clock seconds] - $start] seconds."
2932
2933	# Clean up.
2934	$_dispatcher cancel !movietimeout
2935	WaitIcon stop $inner.icon
2936	grab release $inner
2937	$popup deactivate
2938	destroy $popup
2939	update
2940
2941	# This will both cancel the movie generation (if it hasn't already
2942	# completed) and reset the flow.
2943	SendCmd "flow reset"
2944	if { $_hardcopy($this-$token) != "" } {
2945	return [list .mpg $_hardcopy($this-$token)]
2946	}
2947	return ""
2948	}
2949
2950	itcl::body Rappture::FlowvisViewer::str2millisecs { value } {
2951	set parts [split $value :]
2952	set secs 0
2953	set mins 0
2954	if { [llength $parts] == 1 } {
2955	scan [lindex $parts 0] "%d" secs
2956	} else {
2957	scan [lindex $parts 1] "%d" secs
2958	scan [lindex $parts 0] "%d" mins
2959	}
2960	set ms [expr {(($mins * 60) + $secs) * 1000.0}]
2961	if { $ms > 600000.0 } {
2962	set ms 600000.0
2963	}
2964	if { $ms == 0.0 } {
2965	set ms 60000.0
2966	}
2967	return $ms
2968	}
2969
2970	itcl::body Rappture::FlowvisViewer::millisecs2str { value } {
2971	set min [expr floor($value / 60000.0)]
2972	set sec [expr ($value - ($min*60000.0)) / 1000.0]
2973	return [format %02d:%02d [expr round($min)] [expr round($sec)]]
2974	}
2975
2976	itcl::body Rappture::FlowvisViewer::SetOrientation { side } {
2977	array set positions {
2978	front "1 0 0 0"
2979	back "0 0 1 0"
2980	left "0.707107 0 -0.707107 0"
2981	right "0.707107 0 0.707107 0"
2982	top "0.707107 -0.707107 0 0"
2983	bottom "0.707107 0.707107 0 0"
2984	}
2985	foreach name { qw qx qy qz } value $positions($side) {
2986	set _view($name) $value
2987	}
2988	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2989	$_arcball quaternion $q
2990	SendCmd "camera orient $q"
2991	SendCmd "camera reset"
2992	set _view(xpan) 0.0
2993	set _view(ypan) 0.0
2994	set _view(zoom) 1.0
2995	set _settings($this-xpan) $_view(xpan)
2996	set _settings($this-ypan) $_view(ypan)
2997	set _settings($this-zoom) $_view(zoom)
2998	}
2999
3000	# Reset global settings from dataset's settings.
3001	itcl::body Rappture::FlowvisViewer::BuildVolumeComponents {} {
3002	$itk_component(volcomponents) choices delete 0 end
3003	foreach name $_componentsList {
3004	$itk_component(volcomponents) choices insert end $name $name
3005	}
3006	set _current [lindex $_componentsList 0]
3007	$itk_component(volcomponents) value $_current
3008	}
3009
3010	# Reset global settings from dataset's settings.
3011	itcl::body Rappture::FlowvisViewer::GetDatasetsWithComponent { cname } {
3012	if { ![info exists _volcomponents($cname)] } {
3013	return ""
3014	}
3015	set list ""
3016	foreach tag $_volcomponents($cname) {
3017	if { ![info exists _serverObjs($tag)] } {
3018	continue
3019	}
3020	lappend list $tag
3021	}
3022	return $list
3023	}

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

Download in other formats: