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source: branches/1.4/gui/scripts/flowvisviewer.tcl @ 5278

Last change on this file since 5278 was 5278, checked in by ldelgass, 9 years ago
merge r5276 from trunk
File size: 97.6 KB

Rev	Line
[5101]	1	# -- mode: tcl; indent-tabs-mode: nil --
[1295]	2	# ----------------------------------------------------------------------
[1349]	3	# COMPONENT: flowvisviewer - 3D flow rendering
[1295]	4	#
[1349]	5	# This widget performs volume and flow rendering on 3D scalar/vector datasets.
	6	# It connects to the Flowvis server running on a rendering farm, transmits
	7	# data, and displays the results.
[1295]	8	# ======================================================================
[1349]	9	# AUTHOR: Michael McLennan, Purdue University
[3177]	10	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
[1295]	11	#
[1349]	12	# See the file "license.terms" for information on usage and redistribution of
	13	# this file, and for a DISCLAIMER OF ALL WARRANTIES.
[1295]	14	# ======================================================================
	15	package require Itk
	16	package require BLT
	17	package require Img
	18
[1448]	19	option add *FlowvisViewer.width 5i widgetDefault
[1349]	20	option add FlowvisViewercursor crosshair widgetDefault
[1295]	21	option add *FlowvisViewer.height 4i widgetDefault
	22	option add *FlowvisViewer.foreground black widgetDefault
[1442]	23	option add *FlowvisViewer.controlBackground gray widgetDefault
	24	option add *FlowvisViewer.controlDarkBackground #999999 widgetDefault
[1295]	25	option add *FlowvisViewer.plotBackground black widgetDefault
	26	option add *FlowvisViewer.plotForeground white widgetDefault
[1349]	27	option add *FlowvisViewer.plotOutline gray widgetDefault
[1295]	28	option add *FlowvisViewer.font \
	29	--helvetica-medium-r-normal--12-* widgetDefault
	30
	31	# must use this name -- plugs into Rappture::resources::load
	32	proc FlowvisViewer_init_resources {} {
	33	Rappture::resources::register \
[1349]	34	nanovis_server Rappture::FlowvisViewer::SetServerList
[1295]	35	}
	36
	37	itcl::class Rappture::FlowvisViewer {
	38	inherit Rappture::VisViewer
	39
	40	itk_option define -plotforeground plotForeground Foreground ""
	41	itk_option define -plotbackground plotBackground Background ""
	42	itk_option define -plotoutline plotOutline PlotOutline ""
	43
	44	constructor { hostlist args } {
[1349]	45	Rappture::VisViewer::constructor $hostlist
[1295]	46	} {
[1349]	47	# defined below
[1295]	48	}
	49	destructor {
[1349]	50	# defined below
[1295]	51	}
	52	public proc SetServerList { namelist } {
[1349]	53	Rappture::VisViewer::SetServerList "nanovis" $namelist
[1295]	54	}
	55	public method add {dataobj {settings ""}}
[1442]	56	public method camera {option args}
[1295]	57	public method delete {args}
[1491]	58	public method disconnect {}
[1295]	59	public method download {option args}
[1442]	60	public method flow {option}
	61	public method get {args}
[1295]	62	public method isconnected {}
[4547]	63	public method limits { cname }
[4555]	64	public method overMarker { m x }
[5101]	65	public method parameters {title args} {
	66	# do nothing
[1442]	67	}
[4555]	68	public method removeDuplicateMarker { m x }
[1442]	69	public method scale {args}
[4555]	70	public method updateTransferFunctions {}
[1349]	71
	72	# The following methods are only used by this class.
[5275]	73	private method AddIsoMarker { x y }
[4766]	74	private method AdjustSetting {what {value ""}}
[1442]	75	private method BuildCameraTab {}
[1373]	76	private method BuildCutplanesTab {}
	77	private method BuildViewTab {}
[4766]	78	private method BuildVolumeComponents {}
[1373]	79	private method BuildVolumeTab {}
[5275]	80	private method ComputeTransferFunction { tf }
[4766]	81	private method Connect {}
	82	private method CurrentVolumeIds {{what -all}}
	83	private method Disconnect {}
[5275]	84	private method DrawLegend { tf }
[5101]	85	private method EventuallyResize { w h }
	86	private method EventuallyGoto { nSteps }
	87	private method EventuallyResizeLegend { }
	88	private method GetDatasetsWithComponent { cname }
[4766]	89	private method GetFlowInfo { widget }
[1442]	90	private method GetMovie { widget width height }
[1506]	91	private method GetPngImage { widget width height }
[4766]	92	private method InitSettings { args }
[5275]	93	private method NameTransferFunction { dataobj comp }
[4766]	94	private method Pan {option x y}
[1349]	95	private method PanCamera {}
[1442]	96	private method ParseLevelsOption { tf levels }
	97	private method ParseMarkersOption { tf markers }
[5101]	98	private method QuaternionToView { q } {
[4766]	99	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
	100	}
	101	private method Rebuild {}
	102	private method ReceiveData { args }
	103	private method ReceiveImage { args }
	104	private method ReceiveLegend { tf vmin vmax size }
	105	private method Resize {}
	106	private method ResizeLegend {}
	107	private method Rotate {option x y}
[5143]	108	private method SendFlowCmd { dataobj comp nbytes extents }
[5275]	109	private method SendTransferFunctions {}
[4766]	110	private method SetOrientation { side }
	111	private method Slice {option args}
	112	private method SlicerTip {axis}
[5101]	113	private method ViewToQuaternion {} {
[4766]	114	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
	115	}
[1355]	116	private method WaitIcon { option widget }
[4766]	117	private method Zoom {option}
[5101]	118	private method arrows { tag name }
	119	private method box { tag name }
	120	private method millisecs2str { value }
	121	private method particles { tag name }
	122	private method str2millisecs { value }
	123	private method streams { tag name }
[1295]	124
[3362]	125	private variable _arcball ""
[5275]	126	private variable _dlist "" ;# list of data objects
	127	private variable _obj2ovride ;# maps dataobj => style override
	128	private variable _serverDatasets ;# maps dataobj-component to volume ID
	129	# in the server
	130	private variable _recvdDatasets ;# list of data objs to send to server
	131	private variable _dataset2style ;# maps dataobj-component to transfunc
	132	private variable _style2datasets ;# maps tf back to list of
	133	# dataobj-components using the tf.
	134	private variable _dataset2flow ;# Maps dataobj-component to a flow.
[1442]	135
[5275]	136	private variable _reset 1 ;# Connection to server has been reset
	137	private variable _click ;# info used for rotate operations
	138	private variable _limits ;# Autoscale min/max for all axes
	139	private variable _view ;# View params for 3D view
	140	private variable _isomarkers ;# array of isosurface level values 0..1
[1442]	141	private common _settings
[5275]	142	private variable _activeTf "" ;# The currently active transfer function
	143	private variable _first "" ;# This is the topmost volume.
	144	private variable _volcomponents ;# Array of components found
	145	private variable _componentsList ;# Array of components found
[1506]	146	private variable _nextToken 0
	147	private variable _icon 0
[1442]	148	private variable _flow
[1295]	149
[5275]	150	private common _downloadPopup ;# download options from popup
[1442]	151	private common _hardcopy
	152	private variable _width 0
	153	private variable _height 0
[1448]	154	private variable _resizePending 0
	155	private variable _resizeLegendPending 0
[1471]	156	private variable _gotoPending 0
[1295]	157	}
	158
	159	itk::usual FlowvisViewer {
	160	keep -background -foreground -cursor -font
	161	keep -plotbackground -plotforeground
	162	}
	163
	164	# ----------------------------------------------------------------------
	165	# CONSTRUCTOR
	166	# ----------------------------------------------------------------------
[1349]	167	itcl::body Rappture::FlowvisViewer::constructor { hostlist args } {
[2671]	168	set _serverType "nanovis"
[1349]	169
	170	# Draw legend event
	171	$_dispatcher register !legend
[1448]	172	$_dispatcher dispatch $this !legend "[itcl::code $this ResizeLegend]; list"
[1442]	173
	174	# Send transferfunctions event
[1349]	175	$_dispatcher register !send_transfunc
	176	$_dispatcher dispatch $this !send_transfunc \
[5275]	177	"[itcl::code $this SendTransferFunctions]; list"
[1442]	178
	179	# Rebuild event.
[1295]	180	$_dispatcher register !rebuild
[1349]	181	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
[1295]	182
[1442]	183	# Resize event.
[1377]	184	$_dispatcher register !resize
[1491]	185	$_dispatcher dispatch $this !resize "[itcl::code $this Resize]; list"
[1377]	186
[1349]	187	$_dispatcher register !play
	188	$_dispatcher dispatch $this !play "[itcl::code $this flow next]; list"
[5101]	189
[1471]	190	# Draw legend event
	191	$_dispatcher register !goto
	192	$_dispatcher dispatch $this !goto "[itcl::code $this flow goto2]; list"
	193
[1506]	194	$_dispatcher register !movietimeout
	195	$_dispatcher register !waiticon
	196
[1442]	197	set _flow(state) 0
	198
	199	array set _downloadPopup {
[1355]	200	format draft
[1295]	201	}
	202	#
	203	# Populate parser with commands handle incoming requests
	204	#
	205	$_parser alias image [itcl::code $this ReceiveImage]
[1349]	206	$_parser alias legend [itcl::code $this ReceiveLegend]
	207	$_parser alias data [itcl::code $this ReceiveData]
[1295]	208
	209	# Initialize the view to some default parameters.
[1442]	210	array set _view {
[4766]	211	-qw 0.853553
	212	-qx -0.353553
	213	-qy 0.353553
	214	-qz 0.146447
	215	-xpan 0
	216	-ypan 0
	217	-zoom 1.0
[1295]	218	}
[3362]	219	set _arcball [blt::arcball create 100 100]
[4766]	220	$_arcball quaternion [ViewToQuaternion]
[3362]	221
[4547]	222	set _limits(v) [list 0.0 1.0]
[3396]	223	set _reset 1
[1295]	224
[1442]	225	array set _settings [subst {
[5275]	226	-qw $_view(-qw)
	227	-qx $_view(-qx)
	228	-qy $_view(-qy)
	229	-qz $_view(-qz)
	230	-zoom $_view(-zoom)
	231	-xpan $_view(-xpan)
	232	-ypan $_view(-ypan)
[2744]	233	$this-arrows 0
	234	$this-currenttime 0
	235	$this-duration 1:00
	236	$this-loop 0
	237	$this-play 0
	238	$this-speed 500
	239	$this-step 0
	240	$this-streams 0
	241	$this-volume 1
[4727]	242	$this-light 40
	243	$this-light2side 1
	244	$this-opacity 50
	245	$this-thickness 350
[2744]	246	$this-xcutplane 0
	247	$this-xcutposition 0
	248	$this-ycutplane 0
	249	$this-ycutposition 0
	250	$this-zcutplane 0
	251	$this-zcutposition 0
[1442]	252	}]
	253
[1545]	254	itk_component add 3dview {
[2584]	255	label $itk_component(plotarea).view -image $_image(plot) \
[1694]	256	-highlightthickness 0 -borderwidth 0
[1545]	257	} {
[1694]	258	usual
	259	ignore -highlightthickness -borderwidth -background
[1545]	260	}
[3477]	261	bind $itk_component(3dview) <Control-F1> [itcl::code $this ToggleConsole]
	262
[1375]	263	set f [$itk_component(main) component controls]
[1295]	264	itk_component add reset {
[1375]	265	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
[1391]	266	-highlightthickness 0 \
[1349]	267	-image [Rappture::icon reset-view] \
	268	-command [itcl::code $this Zoom reset]
[1391]	269	} {
	270	usual
	271	ignore -highlightthickness
[1295]	272	}
[1373]	273	pack $itk_component(reset) -side top -padx 2 -pady 2
[1295]	274	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
	275
	276	itk_component add zoomin {
[1375]	277	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
[1391]	278	-highlightthickness 0 \
[1349]	279	-image [Rappture::icon zoom-in] \
	280	-command [itcl::code $this Zoom in]
[1391]	281	} {
	282	usual
	283	ignore -highlightthickness
[1295]	284	}
[1373]	285	pack $itk_component(zoomin) -side top -padx 2 -pady 2
[1295]	286	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
	287
	288	itk_component add zoomout {
[1375]	289	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
[1391]	290	-highlightthickness 0 \
[1349]	291	-image [Rappture::icon zoom-out] \
	292	-command [itcl::code $this Zoom out]
[1391]	293	} {
	294	usual
	295	ignore -highlightthickness
[1295]	296	}
[1373]	297	pack $itk_component(zoomout) -side top -padx 2 -pady 2
[1295]	298	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
	299
	300	itk_component add volume {
[1442]	301	Rappture::PushButton $f.volume \
[1694]	302	-onimage [Rappture::icon volume-on] \
	303	-offimage [Rappture::icon volume-off] \
[3396]	304	-command [itcl::code $this AdjustSetting volume] \
[1694]	305	-variable [itcl::scope _settings($this-volume)]
[1295]	306	}
[1442]	307	$itk_component(volume) select
[1295]	308	Rappture::Tooltip::for $itk_component(volume) \
[1349]	309	"Toggle the volume cloud on/off"
[1373]	310	pack $itk_component(volume) -padx 2 -pady 2
[1295]	311
[3492]	312	if { [catch {
	313	BuildViewTab
	314	BuildVolumeTab
	315	BuildCutplanesTab
	316	BuildCameraTab
	317	} errs] != 0 } {
	318	global errorInfo
	319	puts stderr "errs=$errs errorInfo=$errorInfo"
	320	}
[1373]	321
[1448]	322	bind $itk_component(3dview) <Configure> \
[1694]	323	[itcl::code $this EventuallyResize %w %h]
[1448]	324
[1349]	325	# Legend
	326	set _image(legend) [image create photo]
	327	itk_component add legend {
[4554]	328	canvas $itk_component(plotarea).legend -height 50 -highlightthickness 0
[1295]	329	} {
[1349]	330	usual
	331	ignore -highlightthickness
	332	rename -background -plotbackground plotBackground Background
[1295]	333	}
[1349]	334	bind $itk_component(legend) <Configure> \
[1694]	335	[itcl::code $this EventuallyResizeLegend]
[1295]	336
[5101]	337	# Hack around the Tk panewindow. The problem is that the requested
[1373]	338	# size of the 3d view isn't set until an image is retrieved from
	339	# the server. So the panewindow uses the tiny size.
[1442]	340	set w 10000
	341	pack forget $itk_component(3dview)
[1373]	342	blt::table $itk_component(plotarea) \
[1694]	343	0,0 $itk_component(3dview) -fill both -reqwidth $w \
	344	1,0 $itk_component(legend) -fill x
[5101]	345	blt::table configure $itk_component(plotarea) r1 -resize none
[1349]	346	# Create flow controls...
[1295]	347
[1448]	348	itk_component add flowcontrols {
[5101]	349	frame $itk_interior.flowcontrols
[1295]	350	} {
[1694]	351	usual
[1349]	352	rename -background -controlbackground controlBackground Background
[1295]	353	}
[1442]	354	pack forget $itk_component(main)
	355	blt::table $itk_interior \
[1694]	356	0,0 $itk_component(main) -fill both \
	357	1,0 $itk_component(flowcontrols) -fill x
[1442]	358	blt::table configure $itk_interior r1 -resize none
[1295]	359
[1448]	360	# Rewind
[1349]	361	itk_component add rewind {
[1448]	362	button $itk_component(flowcontrols).reset \
[1349]	363	-borderwidth 1 -padx 1 -pady 1 \
	364	-image [Rappture::icon flow-rewind] \
[1694]	365	-command [itcl::code $this flow reset]
[1295]	366	} {
[1349]	367	usual
	368	ignore -borderwidth
[1448]	369	rename -highlightbackground -controlbackground controlBackground \
[1694]	370	Background
[1295]	371	}
[1349]	372	Rappture::Tooltip::for $itk_component(rewind) \
[1442]	373	"Rewind flow"
[1295]	374
[1448]	375	# Stop
[1295]	376	itk_component add stop {
[1448]	377	button $itk_component(flowcontrols).stop \
[1349]	378	-borderwidth 1 -padx 1 -pady 1 \
	379	-image [Rappture::icon flow-stop] \
[1694]	380	-command [itcl::code $this flow stop]
[1295]	381	} {
[1349]	382	usual
	383	ignore -borderwidth
[1448]	384	rename -highlightbackground -controlbackground controlBackground \
[1694]	385	Background
[1295]	386	}
	387	Rappture::Tooltip::for $itk_component(stop) \
[1442]	388	"Stop flow"
[1295]	389
[1448]	390	# Play
[1295]	391	itk_component add play {
[1448]	392	Rappture::PushButton $itk_component(flowcontrols).play \
[1694]	393	-onimage [Rappture::icon flow-pause] \
	394	-offimage [Rappture::icon flow-play] \
	395	-variable [itcl::scope _settings($this-play)] \
[5101]	396	-command [itcl::code $this flow toggle]
[1295]	397	}
[1349]	398	set fg [option get $itk_component(hull) font Font]
[1295]	399	Rappture::Tooltip::for $itk_component(play) \
[1442]	400	"Play/Pause flow"
[1295]	401
[1448]	402	# Loop
[1442]	403	itk_component add loop {
[1448]	404	Rappture::PushButton $itk_component(flowcontrols).loop \
[1694]	405	-onimage [Rappture::icon flow-loop] \
	406	-offimage [Rappture::icon flow-loop] \
	407	-variable [itcl::scope _settings($this-loop)]
[1442]	408	}
	409	Rappture::Tooltip::for $itk_component(loop) \
	410	"Play continuously"
	411
[1449]	412	itk_component add dial {
[1471]	413	Rappture::Flowdial $itk_component(flowcontrols).dial \
[1449]	414	-length 10 -valuewidth 0 -valuepadding 0 -padding 6 \
	415	-linecolor "" -activelinecolor "" \
[1694]	416	-min 0.0 -max 1.0 \
	417	-variable [itcl::scope _settings($this-currenttime)] \
[1449]	418	-knobimage [Rappture::icon knob2] -knobposition center@middle
[1442]	419	} {
	420	usual
[1471]	421	ignore -dialprogresscolor
[1442]	422	rename -background -controlbackground controlBackground Background
	423	}
[1471]	424	$itk_component(dial) current 0.0
	425	bind $itk_component(dial) <<Value>> [itcl::code $this flow goto]
[1449]	426	# Duration
	427	itk_component add duration {
[1694]	428	entry $itk_component(flowcontrols).duration \
	429	-textvariable [itcl::scope _settings($this-duration)] \
	430	-bg white -width 6 -font "arial 9"
[1449]	431	} {
	432	usual
[1694]	433	ignore -highlightthickness -background
[1449]	434	}
	435	bind $itk_component(duration) <Return> [itcl::code $this flow duration]
[3454]	436	bind $itk_component(duration) <KP_Enter> [itcl::code $this flow duration]
[1511]	437	bind $itk_component(duration) <Tab> [itcl::code $this flow duration]
[1473]	438	Rappture::Tooltip::for $itk_component(duration) \
	439	"Set duration of flow (format is min:sec)"
[1449]	440
	441	itk_component add durationlabel {
[1694]	442	label $itk_component(flowcontrols).durationl \
	443	-text "Duration:" -font $fg \
	444	-highlightthickness 0
[1442]	445	} {
	446	usual
[5101]	447	ignore -highlightthickness
[1442]	448	rename -background -controlbackground controlBackground Background
	449	}
	450
[1349]	451	itk_component add speedlabel {
[1694]	452	label $itk_component(flowcontrols).speedl -text "Speed:" -font $fg \
	453	-highlightthickness 0
[1349]	454	} {
	455	usual
[5101]	456	ignore -highlightthickness
[1349]	457	rename -background -controlbackground controlBackground Background
	458	}
	459
[1448]	460	# Speed
[1442]	461	itk_component add speed {
[1694]	462	Rappture::Flowspeed $itk_component(flowcontrols).speed \
	463	-min 1 -max 10 -width 3 -font "arial 9"
[1442]	464	} {
[1448]	465	usual
[5101]	466	ignore -highlightthickness
[1442]	467	rename -background -controlbackground controlBackground Background
	468	}
[1473]	469	Rappture::Tooltip::for $itk_component(speed) \
	470	"Change speed of flow"
	471
[1448]	472	$itk_component(speed) value 1
	473	bind $itk_component(speed) <<Value>> [itcl::code $this flow speed]
[1349]	474
[1448]	475
	476	blt::table $itk_component(flowcontrols) \
[1694]	477	0,0 $itk_component(rewind) -padx {3 0} \
	478	0,1 $itk_component(stop) -padx {2 0} \
	479	0,2 $itk_component(play) -padx {2 0} \
	480	0,3 $itk_component(loop) -padx {2 0} \
	481	0,4 $itk_component(dial) -fill x -padx {2 0 } \
	482	0,5 $itk_component(duration) -padx { 0 0} \
[5101]	483	0,7 $itk_component(speed) -padx {2 3}
[1448]	484
[5101]	485	# 0,6 $itk_component(speedlabel) -padx {2 0}
[1448]	486	blt::table configure $itk_component(flowcontrols) c* -resize none
	487	blt::table configure $itk_component(flowcontrols) c4 -resize both
	488	blt::table configure $itk_component(flowcontrols) r0 -pady 1
[1295]	489	# Bindings for rotation via mouse
	490	bind $itk_component(3dview) <ButtonPress-1> \
[1349]	491	[itcl::code $this Rotate click %x %y]
[1295]	492	bind $itk_component(3dview) <B1-Motion> \
[1349]	493	[itcl::code $this Rotate drag %x %y]
[1295]	494	bind $itk_component(3dview) <ButtonRelease-1> \
[1349]	495	[itcl::code $this Rotate release %x %y]
[1448]	496
[1295]	497	bind $itk_component(3dview) <Configure> \
[1694]	498	[itcl::code $this EventuallyResize %w %h]
[1295]	499
	500	# Bindings for panning via mouse
	501	bind $itk_component(3dview) <ButtonPress-2> \
[1349]	502	[itcl::code $this Pan click %x %y]
[1295]	503	bind $itk_component(3dview) <B2-Motion> \
[1349]	504	[itcl::code $this Pan drag %x %y]
[1295]	505	bind $itk_component(3dview) <ButtonRelease-2> \
[1349]	506	[itcl::code $this Pan release %x %y]
[1295]	507
	508	# Bindings for panning via keyboard
	509	bind $itk_component(3dview) <KeyPress-Left> \
[1349]	510	[itcl::code $this Pan set -10 0]
[1295]	511	bind $itk_component(3dview) <KeyPress-Right> \
[1349]	512	[itcl::code $this Pan set 10 0]
[1295]	513	bind $itk_component(3dview) <KeyPress-Up> \
[1349]	514	[itcl::code $this Pan set 0 -10]
[1295]	515	bind $itk_component(3dview) <KeyPress-Down> \
[1349]	516	[itcl::code $this Pan set 0 10]
[1295]	517	bind $itk_component(3dview) <Shift-KeyPress-Left> \
[1349]	518	[itcl::code $this Pan set -2 0]
[1295]	519	bind $itk_component(3dview) <Shift-KeyPress-Right> \
[1349]	520	[itcl::code $this Pan set 2 0]
[1295]	521	bind $itk_component(3dview) <Shift-KeyPress-Up> \
[1349]	522	[itcl::code $this Pan set 0 -2]
[1295]	523	bind $itk_component(3dview) <Shift-KeyPress-Down> \
[1349]	524	[itcl::code $this Pan set 0 2]
[1295]	525
	526	# Bindings for zoom via keyboard
	527	bind $itk_component(3dview) <KeyPress-Prior> \
[1349]	528	[itcl::code $this Zoom out]
[1295]	529	bind $itk_component(3dview) <KeyPress-Next> \
[1349]	530	[itcl::code $this Zoom in]
[1295]	531
	532	bind $itk_component(3dview) <Enter> "focus $itk_component(3dview)"
	533
	534	if {[string equal "x11" [tk windowingsystem]]} {
[1349]	535	# Bindings for zoom via mouse
	536	bind $itk_component(3dview) <4> [itcl::code $this Zoom out]
	537	bind $itk_component(3dview) <5> [itcl::code $this Zoom in]
[1295]	538	}
	539
	540	set _image(download) [image create photo]
	541
	542	eval itk_initialize $args
	543
[5095]	544	EnableWaitDialog 900
[1295]	545	Connect
	546	}
	547
	548	# ----------------------------------------------------------------------
	549	# DESTRUCTOR
	550	# ----------------------------------------------------------------------
	551	itcl::body Rappture::FlowvisViewer::destructor {} {
	552	$_dispatcher cancel !rebuild
[1349]	553	$_dispatcher cancel !send_transfunc
[1295]	554	image delete $_image(plot)
[1349]	555	image delete $_image(legend)
[1295]	556	image delete $_image(download)
[3362]	557	catch { blt::arcball destroy $_arcball }
[1442]	558	array unset _settings $this-*
[1295]	559	}
	560
	561	# ----------------------------------------------------------------------
	562	# USAGE: add <dataobj> ?<settings>?
	563	#
	564	# Clients use this to add a data object to the plot. The optional
	565	# <settings> are used to configure the plot. Allowed settings are
	566	# -color, -brightness, -width, -linestyle, and -raise.
	567	# ----------------------------------------------------------------------
	568	itcl::body Rappture::FlowvisViewer::add {dataobj {settings ""}} {
	569	array set params {
[1349]	570	-color auto
	571	-width 1
	572	-linestyle solid
	573	-brightness 0
	574	-raise 0
	575	-description ""
	576	-param ""
[1295]	577	}
[3800]	578	array set params $settings
[1295]	579	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
[1349]	580	# can't handle -autocolors yet
	581	set params(-color) black
[1295]	582	}
[1442]	583	foreach comp [$dataobj components] {
[1694]	584	set flowobj [$dataobj flowhints $comp]
	585	if { $flowobj == "" } {
	586	puts stderr "no flowhints $dataobj-$comp"
	587	continue
	588	}
[5275]	589	set _dataset2flow($dataobj-$comp) $flowobj
[1442]	590	}
[3844]	591	set pos [lsearch -exact $_dlist $dataobj]
[1295]	592	if {$pos < 0} {
[1442]	593	lappend _dlist $dataobj
	594	set _obj2ovride($dataobj-color) $params(-color)
	595	set _obj2ovride($dataobj-width) $params(-width)
	596	set _obj2ovride($dataobj-raise) $params(-raise)
[1349]	597	$_dispatcher event -idle !rebuild
[1295]	598	}
	599	}
	600
	601	# ----------------------------------------------------------------------
	602	# USAGE: get ?-objects?
	603	# USAGE: get ?-image 3dview\|legend?
	604	#
	605	# Clients use this to query the list of objects being plotted, in
	606	# order from bottom to top of this result. The optional "-image"
	607	# flag can also request the internal images being shown.
	608	# ----------------------------------------------------------------------
	609	itcl::body Rappture::FlowvisViewer::get {args} {
	610	if {[llength $args] == 0} {
[1349]	611	set args "-objects"
[1295]	612	}
	613
	614	set op [lindex $args 0]
	615	switch -- $op {
[5212]	616	-objects {
	617	# put the dataobj list in order according to -raise options
	618	set dlist $_dlist
	619	foreach obj $dlist {
	620	if {[info exists _obj2ovride($obj-raise)] &&
	621	$_obj2ovride($obj-raise)} {
	622	set i [lsearch -exact $dlist $obj]
	623	if {$i >= 0} {
	624	set dlist [lreplace $dlist $i $i]
	625	lappend dlist $obj
	626	}
[1349]	627	}
	628	}
[5212]	629	return $dlist
[1349]	630	}
[5212]	631	-image {
	632	if {[llength $args] != 2} {
	633	error "wrong # args: should be \"get -image 3dview\|legend\""
[1349]	634	}
[5212]	635	switch -- [lindex $args end] {
	636	3dview {
	637	return $_image(plot)
	638	}
	639	legend {
	640	return $_image(legend)
	641	}
	642	default {
	643	error "bad image name \"[lindex $args end]\": should be 3dview or legend"
	644	}
[1349]	645	}
	646	}
[5212]	647	default {
	648	error "bad option \"$op\": should be -objects or -image"
	649	}
[1295]	650	}
	651	}
	652
	653	# ----------------------------------------------------------------------
	654	# USAGE: delete ?<dataobj1> <dataobj2> ...?
	655	#
[1349]	656	# Clients use this to delete a dataobj from the plot. If no dataobjs
	657	# are specified, then all dataobjs are deleted. No data objects are
	658	# deleted. They are only removed from the display list.
	659	#
[1295]	660	# ----------------------------------------------------------------------
	661	itcl::body Rappture::FlowvisViewer::delete {args} {
[4547]	662	flow stop
[1295]	663	if {[llength $args] == 0} {
[1442]	664	set args $_dlist
[1295]	665	}
[1442]	666
[1349]	667	# Delete all specified dataobjs
[1295]	668	set changed 0
	669	foreach dataobj $args {
[1442]	670	set pos [lsearch -exact $_dlist $dataobj]
[1349]	671	if { $pos >= 0 } {
[1694]	672	foreach comp [$dataobj components] {
	673	array unset _limits $dataobj-$comp-*
	674	}
	675	set _dlist [lreplace $_dlist $pos $pos]
	676	array unset _obj2ovride $dataobj-*
[5275]	677	array unset _dataset2flow $dataobj-*
	678	array unset _serverDatasets $dataobj-*
	679	array unset _dataset2style $dataobj-*
[1349]	680	set changed 1
	681	}
[1295]	682	}
[1349]	683	# If anything changed, then rebuild the plot
[1295]	684	if {$changed} {
[5101]	685	# Repair the reverse lookup
[5275]	686	foreach tf [array names _style2datasets] {
[1694]	687	set list {}
[5275]	688	foreach {dataobj comp} $_style2datasets($tf) break
	689	if { [info exists _serverDatasets($dataobj-$comp)] } {
[1694]	690	lappend list $dataobj $comp
	691	}
	692	if { $list == "" } {
[5275]	693	array unset _style2datasets $tf
[1694]	694	} else {
[5275]	695	set _style2datasets($tf) $list
[1694]	696	}
	697	}
[1349]	698	$_dispatcher event -idle !rebuild
[1295]	699	}
	700	}
	701
	702	# ----------------------------------------------------------------------
	703	# USAGE: scale ?<data1> <data2> ...?
	704	#
	705	# Sets the default limits for the overall plot according to the
	706	# limits of the data for all of the given <data> objects. This
	707	# accounts for all objects--even those not showing on the screen.
	708	# Because of this, the limits are appropriate for all objects as
	709	# the user scans through data in the ResultSet viewer.
	710	# ----------------------------------------------------------------------
	711	itcl::body Rappture::FlowvisViewer::scale {args} {
[5187]	712	array set style {
[4547]	713	-color BCGYR
	714	-levels 6
[4557]	715	-markers ""
[4727]	716	-opacity 0.5
[1295]	717	}
[5101]	718	array unset _limits
	719	array unset _volcomponents
[4547]	720	foreach dataobj $args {
	721	if { ![$dataobj isvalid] } {
	722	continue; # Object doesn't contain valid data.
	723	}
	724	foreach cname [$dataobj components] {
	725	if { ![info exists _volcomponents($cname)] } {
	726	lappend _componentsList $cname
[5187]	727	array set style [lindex [$dataobj components -style $cname] 0]
	728	set cmap [ColorsToColormap $style(-color)]
	729	set _settings($cname-colormap) $style(-color)
[4547]	730	}
	731	lappend _volcomponents($cname) $dataobj-$cname
	732	array unset limits
	733	array set limits [$dataobj valueLimits $cname]
	734	set _limits($cname) $limits(v)
	735	}
	736	foreach axis {x y z v} {
	737	foreach { min max } [$dataobj limits $axis] break
[1349]	738	if {"" != $min && "" != $max} {
[4547]	739	if { ![info exists _limits($axis)] } {
	740	set _limits($axis) [list $min $max]
[5144]	741	continue
[1349]	742	}
[5144]	743	foreach {amin amax} $_limits($axis) break
	744	if {$min < $amin} {
	745	set amin $min
	746	}
	747	if {$max > $amax} {
	748	set amax $max
	749	}
	750	set _limits($axis) [list $amin $amax]
[1349]	751	}
	752	}
[1295]	753	}
[4547]	754	#BuildVolumeComponents
[1295]	755	}
	756
	757	# ----------------------------------------------------------------------
	758	# USAGE: download coming
	759	# USAGE: download controls <downloadCommand>
	760	# USAGE: download now
	761	#
	762	# Clients use this method to create a downloadable representation
	763	# of the plot. Returns a list of the form {ext string}, where
	764	# "ext" is the file extension (indicating the type of data) and
	765	# "string" is the data itself.
	766	# ----------------------------------------------------------------------
	767	itcl::body Rappture::FlowvisViewer::download {option args} {
[1506]	768	set popup .flowvisviewerdownload
[1295]	769	switch $option {
[1349]	770	coming {
[1442]	771	if {[catch {
[1694]	772	blt::winop snap $itk_component(plotarea) $_image(download)
	773	}]} {
[1349]	774	$_image(download) configure -width 1 -height 1
	775	$_image(download) put #000000
	776	}
	777	}
	778	controls {
[1694]	779	if {![winfo exists $popup]} {
	780	# if we haven't created the popup yet, do it now
	781	Rappture::Balloon $popup \
	782	-title "[Rappture::filexfer::label downloadWord] as..."
	783	set inner [$popup component inner]
	784	label $inner.summary -text "" -anchor w
	785	pack $inner.summary -side top
	786	set img $_image(plot)
	787	set res "[image width $img]x[image height $img]"
	788	radiobutton $inner.draft -text "Image (draft $res)" \
	789	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
	790	-value draft
	791	pack $inner.draft -anchor w
[1355]	792
[1694]	793	set res "640x480"
	794	radiobutton $inner.medium -text "Movie (standard $res)" \
	795	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
	796	-value $res
	797	pack $inner.medium -anchor w
[1355]	798
[1694]	799	set res "1024x768"
	800	radiobutton $inner.high -text "Movie (high quality $res)" \
	801	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
	802	-value $res
	803	pack $inner.high -anchor w
	804	button $inner.go -text [Rappture::filexfer::label download] \
	805	-command [lindex $args 0]
	806	pack $inner.go -pady 4
	807	$inner.draft select
	808	} else {
	809	set inner [$popup component inner]
	810	}
	811	set num [llength [get]]
	812	set num [expr {($num == 1) ? "1 result" : "$num results"}]
	813	set word [Rappture::filexfer::label downloadWord]
	814	$inner.summary configure -text "$word $num in the following format:"
	815	update idletasks ;# fix initial sizes
[3555]	816	update
[1694]	817	return $popup
	818	}
[1349]	819	now {
[1694]	820	if { [winfo exists $popup] } {
	821	$popup deactivate
	822	}
	823	switch -- $_downloadPopup(format) {
	824	draft {
	825	# Get the image data (as base64) and decode it back to
	826	# binary. This is better than writing to temporary
	827	# files. When we switch to the BLT picture image it
	828	# won't be necessary to decode the image data.
	829	set bytes [$_image(plot) data -format "jpeg -quality 100"]
	830	set bytes [Rappture::encoding::decode -as b64 $bytes]
	831	return [list .jpg $bytes]
	832	}
	833	"640x480" {
	834	return [$this GetMovie [lindex $args 0] 640 480]
	835	}
	836	"1024x768" {
	837	return [$this GetMovie [lindex $args 0] 1024 768]
	838	}
	839	default {
	840	error "bad download format $_downloadPopup(format)"
	841	}
	842	}
	843	}
[1349]	844	default {
	845	error "bad option \"$option\": should be coming, controls, now"
	846	}
[1295]	847	}
	848	}
	849
	850	# ----------------------------------------------------------------------
	851	# USAGE: Connect ?<host:port>,<host:port>...?
	852	#
	853	# Clients use this method to establish a connection to a new
	854	# server, or to reestablish a connection to the previous server.
	855	# Any existing connection is automatically closed.
	856	# ----------------------------------------------------------------------
	857	itcl::body Rappture::FlowvisViewer::Connect {} {
	858	set _hosts [GetServerList "nanovis"]
	859	if { "" == $_hosts } {
[1349]	860	return 0
[1295]	861	}
[5101]	862	set _reset 1
[1295]	863	set result [VisViewer::Connect $_hosts]
[1349]	864	if { $result } {
[3592]	865	if { $_reportClientInfo } {
	866	# Tell the server the viewer, hub, user and session.
[4439]	867	# Do this immediately on connect before buffering any commands
[3592]	868	global env
	869
	870	set info {}
	871	set user "???"
[5101]	872	if { [info exists env(USER)] } {
[3592]	873	set user $env(USER)
[5101]	874	}
[3592]	875	set session "???"
[5101]	876	if { [info exists env(SESSION)] } {
[3592]	877	set session $env(SESSION)
[5101]	878	}
[4670]	879	lappend info "version" "$Rappture::version"
	880	lappend info "build" "$Rappture::build"
	881	lappend info "svnurl" "$Rappture::svnurl"
	882	lappend info "installdir" "$Rappture::installdir"
[3592]	883	lappend info "hub" [exec hostname]
	884	lappend info "client" "flowvisviewer"
	885	lappend info "user" $user
	886	lappend info "session" $session
	887	SendCmd "clientinfo [list $info]"
	888	}
	889
[1349]	890	set w [winfo width $itk_component(3dview)]
	891	set h [winfo height $itk_component(3dview)]
[1442]	892	EventuallyResize $w $h
[1349]	893	}
[1295]	894	return $result
	895	}
	896
	897	#
	898	# isconnected --
	899	#
	900	# Indicates if we are currently connected to the visualization server.
	901	#
	902	itcl::body Rappture::FlowvisViewer::isconnected {} {
	903	return [VisViewer::IsConnected]
	904	}
	905
	906	#
[1491]	907	# disconnect --
	908	#
	909	itcl::body Rappture::FlowvisViewer::disconnect {} {
	910	Disconnect
	911	}
	912
	913	#
[1349]	914	# Disconnect --
	915	#
	916	# Clients use this method to disconnect from the current rendering
	917	# server.
	918	#
[1295]	919	itcl::body Rappture::FlowvisViewer::Disconnect {} {
	920	VisViewer::Disconnect
	921
[1349]	922	# disconnected -- no more data sitting on server
[5275]	923	array unset _serverDatasets
[1295]	924	}
	925
	926	# ----------------------------------------------------------------------
[5275]	927	# USAGE: SendTransferFunctions
[1349]	928	# ----------------------------------------------------------------------
[5275]	929	itcl::body Rappture::FlowvisViewer::SendTransferFunctions {} {
[1442]	930	if { $_activeTf == "" } {
[1694]	931	puts stderr "no active tf"
	932	return
[1349]	933	}
[1442]	934	set tf $_activeTf
	935	if { $_first == "" } {
[1694]	936	puts stderr "no first"
	937	return
[1442]	938	}
[1349]	939
[4727]	940	# Ensure that the global thickness setting (in the slider settings widget)
	941	# is used for the active transfer-function. Update the values in the
	942	# _settings varible.
	943
[1442]	944	set value $_settings($this-thickness)
[1349]	945	# Scale values between 0.00001 and 0.01000
	946	set thickness [expr {double($value) * 0.0001}]
[1442]	947	set _settings($this-$tf-thickness) $thickness
[1349]	948
[5275]	949	foreach key [array names _dataset2style $_first-*] {
	950	if { [info exists _dataset2style($key)] } {
	951	foreach tf $_dataset2style($key) {
	952	ComputeTransferFunction $tf
[1694]	953	}
	954	}
[1349]	955	}
[1479]	956	EventuallyResizeLegend
[1349]	957	}
	958
	959	# ----------------------------------------------------------------------
[1442]	960	# USAGE: ReceiveImage -bytes $size -type $type -token $token
[1295]	961	#
	962	# Invoked automatically whenever the "image" command comes in from
	963	# the rendering server. Indicates that binary image data with the
	964	# specified <size> will follow.
	965	# ----------------------------------------------------------------------
[1349]	966	itcl::body Rappture::FlowvisViewer::ReceiveImage { args } {
	967	array set info {
[1694]	968	-token "???"
	969	-bytes 0
	970	-type image
[1349]	971	}
	972	array set info $args
	973	set bytes [ReceiveBytes $info(-bytes)]
	974	ReceiveEcho <<line "<read $info(-bytes) bytes"
[1506]	975	switch -- $info(-type) {
[1694]	976	"image" {
	977	$_image(plot) configure -data $bytes
	978	#puts stderr "image received [image width $_image(plot)] by [image height $_image(plot)]"
[5101]	979	}
[1694]	980	"print" {
	981	set tag $this-$info(-token)
	982	set _hardcopy($tag) $bytes
[5101]	983	}
[1694]	984	"movie" {
	985	set tag $this-$info(-token)
	986	set _hardcopy($tag) $bytes
	987	}
	988	default {
	989	puts stderr "unknown download type $info(-type)"
	990	}
[1295]	991	}
	992	}
	993
	994	#
[5275]	995	# DrawLegend --
[1349]	996	#
[5275]	997	itcl::body Rappture::FlowvisViewer::DrawLegend { tag } {
[1349]	998	set c $itk_component(legend)
	999	set w [winfo width $c]
	1000	set h [winfo height $c]
	1001	set lx 10
	1002	set ly [expr {$h - 1}]
[4554]	1003	if {"" == [$c find withtag colorbar]} {
[1349]	1004	$c create image 10 10 -anchor nw \
[4554]	1005	-image $_image(legend) -tags colorbar
[1349]	1006	$c create text $lx $ly -anchor sw \
	1007	-fill $itk_option(-plotforeground) -tags "limits vmin"
	1008	$c create text [expr {$w-$lx}] $ly -anchor se \
	1009	-fill $itk_option(-plotforeground) -tags "limits vmax"
[4554]	1010	$c lower colorbar
	1011	$c bind colorbar <ButtonRelease-1> [itcl::code $this AddIsoMarker %x %y]
[1349]	1012	}
[5275]	1013
	1014	# Display the markers used by the current transfer function.
	1015	set tf $_dataset2style($tag)
[4547]	1016	foreach {vmin vmax} [limits $tf] break
[4556]	1017	$c itemconfigure vmin -text [format %g $vmin]
[1349]	1018	$c coords vmin $lx $ly
	1019
[4556]	1020	$c itemconfigure vmax -text [format %g $vmax]
[1349]	1021	$c coords vmax [expr {$w-$lx}] $ly
	1022
[1442]	1023	if { [info exists _isomarkers($tf)] } {
	1024	foreach m $_isomarkers($tf) {
	1025	$m visible yes
[1349]	1026	}
[1295]	1027	}
	1028	}
	1029
	1030	#
[5275]	1031	# ReceiveLegend --
	1032	#
	1033	# The procedure is the response from the render server to each "legend"
	1034	# command. The server sends back a "legend" command invoked our
	1035	# the slave interpreter. The purpose is to collect data of the image
	1036	# representing the legend in the canvas. In addition, the
	1037	# active transfer function is displayed.
	1038	#
	1039	itcl::body Rappture::FlowvisViewer::ReceiveLegend { tag vmin vmax size } {
	1040	if { ![isconnected] } {
	1041	return
	1042	}
	1043	#puts stderr "receive legend $tag $vmin $vmax $size"
	1044	set bytes [ReceiveBytes $size]
	1045	$_image(legend) configure -data $bytes
	1046	ReceiveEcho <<line "<read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
	1047
	1048	DrawLegend $tag
	1049	}
	1050
	1051	#
[1349]	1052	# ReceiveData --
	1053	#
[2744]	1054	# The procedure is the response from the render server to each "data
	1055	# follows" command. The server sends back a "data" command invoked our
	1056	# the slave interpreter. The purpose is to collect the min/max of the
	1057	# volume sent to the render server. Since the client (flowvisviewer)
	1058	# doesn't parse 3D data formats, we rely on the server (flowvis) to
	1059	# tell us what the limits are. Once we've received the limits to all
[5275]	1060	# the data we've sent (tracked by _recvdDatasets) we can then determine
[2744]	1061	# what the transfer functions are for these # volumes.
[1349]	1062	#
	1063	# Note: There is a considerable tradeoff in having the server report
	1064	# back what the data limits are. It means that much of the code
	1065	# having to do with transfer-functions has to wait for the data
	1066	# to come back, since the isomarkers are calculated based upon
	1067	# the data limits. The client code is much messier because of
	1068	# this. The alternative is to parse any of the 3D formats on the
	1069	# client side.
	1070	#
	1071	itcl::body Rappture::FlowvisViewer::ReceiveData { args } {
	1072	if { ![isconnected] } {
	1073	return
	1074	}
	1075	# Arguments from server are name value pairs. Stuff them in an array.
[1479]	1076	array set values $args
	1077	set tag $values(tag)
[1442]	1078	set parts [split $tag -]
	1079	set dataobj [lindex $parts 0]
[5275]	1080	set _serverDatasets($tag) 0
[4547]	1081	set _limits($tag) [list $values(min) $values(max)]
[5275]	1082	unset _recvdDatasets($tag)
	1083	if { [array size _recvdDatasets] == 0 } {
[4555]	1084	updateTransferFunctions
[1349]	1085	}
	1086	}
	1087
	1088	#
	1089	# Rebuild --
	1090	#
	1091	# Called automatically whenever something changes that affects the data
	1092	# in the widget. Clears any existing data and rebuilds the widget to
[5101]	1093	# display new data.
[1349]	1094	#
	1095	itcl::body Rappture::FlowvisViewer::Rebuild {} {
[3498]	1096	set w [winfo width $itk_component(3dview)]
	1097	set h [winfo height $itk_component(3dview)]
	1098	if { $w < 2 \|\| $h < 2 } {
[5095]	1099	update
[3498]	1100	$_dispatcher event -idle !rebuild
	1101	return
	1102	}
[1543]	1103
[3498]	1104	# Turn on buffering of commands to the server. We don't want to
	1105	# be preempted by a server disconnect/reconnect (which automatically
[5101]	1106	# generates a new call to Rebuild).
[3498]	1107	StartBufferingCommands
	1108
[1349]	1109	# Hide all the isomarkers. Can't remove them. Have to remember the
	1110	# settings since the user may have created/deleted/moved markers.
	1111
[1442]	1112	foreach tf [array names _isomarkers] {
	1113	foreach m $_isomarkers($tf) {
	1114	$m visible no
[1349]	1115	}
	1116	}
	1117
[3498]	1118	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
	1119	set _width $w
	1120	set _height $h
	1121	$_arcball resize $w $h
	1122	Resize
	1123	}
	1124
[1509]	1125	set _first ""
[1295]	1126	foreach dataobj [get] {
[1479]	1127	foreach comp [$dataobj components] {
[3394]	1128	set tag $dataobj-$comp
[4548]	1129	set isvtk 0
	1130	# FIXME: Would like to use the type method of the dataobj
	1131	# but the returned value isn't well defined now
	1132	if {[catch {
	1133	# Send the data as one huge base64-encoded mess -- yuck!
	1134	set data [$dataobj blob $comp]
	1135	}]} {
	1136	set data [$dataobj vtkdata $comp]
	1137	set isvtk 1
	1138	}
[1694]	1139	set nbytes [string length $data]
[3421]	1140	if { $_reportClientInfo } {
[3392]	1141	set info {}
[4750]	1142	lappend info "tool_id" [$dataobj hints toolid]
	1143	lappend info "tool_name" [$dataobj hints toolname]
	1144	lappend info "tool_title" [$dataobj hints tooltitle]
	1145	lappend info "tool_command" [$dataobj hints toolcommand]
	1146	lappend info "tool_revision" [$dataobj hints toolrevision]
[3392]	1147	lappend info "dataset_label" [$dataobj hints label]
	1148	lappend info "dataset_size" $nbytes
[3394]	1149	lappend info "dataset_tag" $tag
[3392]	1150	SendCmd "clientinfo [list $info]"
	1151	}
[1694]	1152	set extents [$dataobj extents $comp]
	1153	# I have a field. Is a vector field or a volume field?
[4548]	1154	if { !$isvtk && $extents == 1 } {
[4768]	1155	SendCmd "volume data follows $nbytes $tag"
[1694]	1156	} else {
[5143]	1157	if {[SendFlowCmd $dataobj $comp $nbytes $extents] < 0} {
[5247]	1158	continue
[1694]	1159	}
	1160	}
[5143]	1161	SendData $data
[5275]	1162	NameTransferFunction $dataobj $comp
	1163	set _recvdDatasets($tag) 1
[1349]	1164	}
[1295]	1165	}
	1166
[1509]	1167	set _first [lindex [get] 0]
	1168
[1295]	1169	# Reset the camera and other view parameters
[4727]	1170	InitSettings light2side light opacity isosurface grid axes volume outline
	1171
[1496]	1172	# nothing to send -- activate the proper volume
[1448]	1173	if {"" != $_first} {
	1174	set axis [$_first hints updir]
	1175	if {"" != $axis} {
	1176	SendCmd "up $axis"
	1177	}
[1694]	1178	set location [$_first hints camera]
	1179	if { $location != "" } {
	1180	array set _view $location
	1181	}
[3362]	1182
[1448]	1183	}
[5275]	1184	set _settings(-qw) $_view(-qw)
	1185	set _settings(-qx) $_view(-qx)
	1186	set _settings(-qy) $_view(-qy)
	1187	set _settings(-qz) $_view(-qz)
	1188	set _settings(-xpan) $_view(-xpan)
	1189	set _settings(-ypan) $_view(-ypan)
	1190	set _settings(-zoom) $_view(-zoom)
[1349]	1191
[4766]	1192	set q [ViewToQuaternion]
[3485]	1193	$_arcball quaternion $q
	1194	SendCmd "camera orient $q"
[3492]	1195	SendCmd "camera reset"
[1448]	1196	PanCamera
[4766]	1197	SendCmd "camera zoom $_view(-zoom)"
[1349]	1198
[1479]	1199	foreach dataobj [get] {
	1200	foreach comp [$dataobj components] {
[5275]	1201	NameTransferFunction $dataobj $comp
[1479]	1202	}
	1203	}
	1204
[1349]	1205	# nothing to send -- activate the proper ivol
[1442]	1206	set _first [lindex [get] 0]
	1207	if {"" != $_first} {
	1208	set axis [$_first hints updir]
[1349]	1209	if {"" != $axis} {
	1210	SendCmd "up $axis"
	1211	}
[1694]	1212	set location [$_first hints camera]
	1213	if { $location != "" } {
	1214	array set _view $location
	1215	}
[1442]	1216	set comp [lindex [$_first components] 0]
[5275]	1217	set _activeTf [lindex $_dataset2style($_first-$comp) 0]
[1442]	1218	}
[1349]	1219
	1220	# sync the state of slicers
	1221	set vols [CurrentVolumeIds -cutplanes]
	1222	foreach axis {x y z} {
[1694]	1223	SendCmd "cutplane state $_settings($this-${axis}cutplane) $axis $vols"
	1224	set pos [expr {0.01*$_settings($this-${axis}cutposition)}]
	1225	SendCmd "cutplane position $pos $axis $vols"
[1349]	1226	}
[1442]	1227	SendCmd "volume data state $_settings($this-volume)"
[1479]	1228	EventuallyResizeLegend
[1442]	1229
	1230	# Actually write the commands to the server socket. If it fails, we don't
	1231	# care. We're finished here.
[1543]	1232	blt::busy hold $itk_component(hull)
[3421]	1233	StopBufferingCommands
[1479]	1234	blt::busy release $itk_component(hull)
[3396]	1235	set _reset 0
[1295]	1236	}
	1237
	1238	# ----------------------------------------------------------------------
[1349]	1239	# USAGE: CurrentVolumeIds ?-cutplanes?
[1295]	1240	#
	1241	# Returns a list of volume server IDs for the current volume being
	1242	# displayed. This is normally a single ID, but it might be a list
	1243	# of IDs if the current data object has multiple components.
	1244	# ----------------------------------------------------------------------
[1349]	1245	itcl::body Rappture::FlowvisViewer::CurrentVolumeIds {{what -all}} {
[1479]	1246	return ""
[1442]	1247	if { $_first == "" } {
[1694]	1248	return
[1442]	1249	}
[5275]	1250	foreach key [array names _serverDatasets -] {
[1442]	1251	if {[string match $_first-* $key]} {
[5187]	1252	array set style {
[1349]	1253	-cutplanes 1
	1254	}
	1255	foreach {dataobj comp} [split $key -] break
[5187]	1256	array set style [lindex [$dataobj components -style $comp] 0]
	1257	if {$what != "-cutplanes" \|\| $style(-cutplanes)} {
[5275]	1258	lappend rlist $_serverDatasets($key)
[1349]	1259	}
	1260	}
[1295]	1261	}
	1262	return $rlist
	1263	}
	1264
	1265	# ----------------------------------------------------------------------
[1349]	1266	# USAGE: Zoom in
	1267	# USAGE: Zoom out
	1268	# USAGE: Zoom reset
[1295]	1269	#
	1270	# Called automatically when the user clicks on one of the zoom
	1271	# controls for this widget. Changes the zoom for the current view.
	1272	# ----------------------------------------------------------------------
[1349]	1273	itcl::body Rappture::FlowvisViewer::Zoom {option} {
[1295]	1274	switch -- $option {
[1694]	1275	"in" {
[4766]	1276	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
[5275]	1277	set _settings(-zoom) $_view(-zoom)
[4766]	1278	SendCmd "camera zoom $_view(-zoom)"
[1694]	1279	}
	1280	"out" {
[4766]	1281	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
[5275]	1282	set _settings(-zoom) $_view(-zoom)
[4766]	1283	SendCmd "camera zoom $_view(-zoom)"
[1694]	1284	}
[1349]	1285	"reset" {
[1694]	1286	array set _view {
[4766]	1287	-qw 0.853553
	1288	-qx -0.353553
	1289	-qy 0.353553
	1290	-qz 0.146447
	1291	-xpan 0
	1292	-ypan 0
[5275]	1293	-zoom 1.0
[1694]	1294	}
	1295	if { $_first != "" } {
	1296	set location [$_first hints camera]
	1297	if { $location != "" } {
	1298	array set _view $location
	1299	}
	1300	}
[4766]	1301	set q [ViewToQuaternion]
[3485]	1302	$_arcball quaternion $q
	1303	SendCmd "camera orient $q"
[3492]	1304	SendCmd "camera reset"
[5275]	1305	set _settings(-qw) $_view(-qw)
	1306	set _settings(-qx) $_view(-qx)
	1307	set _settings(-qy) $_view(-qy)
	1308	set _settings(-qz) $_view(-qz)
	1309	set _settings(-xpan) $_view(-xpan)
	1310	set _settings(-ypan) $_view(-ypan)
	1311	set _settings(-zoom) $_view(-zoom)
[1349]	1312	}
[1295]	1313	}
	1314	}
	1315
[1349]	1316	itcl::body Rappture::FlowvisViewer::PanCamera {} {
[4766]	1317	set x $_view(-xpan)
	1318	set y $_view(-ypan)
[1349]	1319	SendCmd "camera pan $x $y"
	1320	}
	1321
[1295]	1322	# ----------------------------------------------------------------------
[1349]	1323	# USAGE: Rotate click <x> <y>
	1324	# USAGE: Rotate drag <x> <y>
	1325	# USAGE: Rotate release <x> <y>
[1295]	1326	#
[1349]	1327	# Called automatically when the user clicks/drags/releases in the
	1328	# plot area. Moves the plot according to the user's actions.
	1329	# ----------------------------------------------------------------------
	1330	itcl::body Rappture::FlowvisViewer::Rotate {option x y} {
	1331	switch -- $option {
	1332	click {
	1333	$itk_component(3dview) configure -cursor fleur
[1442]	1334	set _click(x) $x
	1335	set _click(y) $y
[1349]	1336	}
	1337	drag {
[1442]	1338	if {[array size _click] == 0} {
[1349]	1339	Rotate click $x $y
	1340	} else {
	1341	set w [winfo width $itk_component(3dview)]
	1342	set h [winfo height $itk_component(3dview)]
	1343	if {$w <= 0 \|\| $h <= 0} {
	1344	return
	1345	}
	1346
	1347	if {[catch {
	1348	# this fails sometimes for no apparent reason
[1442]	1349	set dx [expr {double($x-$_click(x))/$w}]
	1350	set dy [expr {double($y-$_click(y))/$h}]
[1349]	1351	}]} {
	1352	return
	1353	}
	1354
[3485]	1355	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
[4766]	1356	QuaternionToView $q
[5275]	1357	set _settings(-qw) $_view(-qw)
	1358	set _settings(-qx) $_view(-qx)
	1359	set _settings(-qy) $_view(-qy)
	1360	set _settings(-qz) $_view(-qz)
[3485]	1361	SendCmd "camera orient $q"
[1349]	1362
[1442]	1363	set _click(x) $x
	1364	set _click(y) $y
[1349]	1365	}
	1366	}
	1367	release {
	1368	Rotate drag $x $y
	1369	$itk_component(3dview) configure -cursor ""
[1442]	1370	catch {unset _click}
[1349]	1371	}
	1372	default {
	1373	error "bad option \"$option\": should be click, drag, release"
	1374	}
	1375	}
	1376	}
	1377
	1378	# ----------------------------------------------------------------------
	1379	# USAGE: $this Pan click x y
	1380	# $this Pan drag x y
	1381	# $this Pan release x y
	1382	#
[1295]	1383	# Called automatically when the user clicks on one of the zoom
	1384	# controls for this widget. Changes the zoom for the current view.
	1385	# ----------------------------------------------------------------------
[1349]	1386	itcl::body Rappture::FlowvisViewer::Pan {option x y} {
[1295]	1387	# Experimental stuff
	1388	set w [winfo width $itk_component(3dview)]
	1389	set h [winfo height $itk_component(3dview)]
	1390	if { $option == "set" } {
[1349]	1391	set x [expr $x / double($w)]
	1392	set y [expr $y / double($h)]
[4766]	1393	set _view(-xpan) [expr $_view(-xpan) + $x]
	1394	set _view(-ypan) [expr $_view(-ypan) + $y]
[1349]	1395	PanCamera
[5275]	1396	set _settings(-xpan) $_view(-xpan)
	1397	set _settings(-ypan) $_view(-ypan)
[1349]	1398	return
[1295]	1399	}
	1400	if { $option == "click" } {
[1442]	1401	set _click(x) $x
	1402	set _click(y) $y
[1349]	1403	$itk_component(3dview) configure -cursor hand1
[1295]	1404	}
	1405	if { $option == "drag" \|\| $option == "release" } {
[1442]	1406	set dx [expr ($_click(x) - $x)/double($w)]
	1407	set dy [expr ($_click(y) - $y)/double($h)]
	1408	set _click(x) $x
	1409	set _click(y) $y
[4766]	1410	set _view(-xpan) [expr $_view(-xpan) - $dx]
	1411	set _view(-ypan) [expr $_view(-ypan) - $dy]
[1349]	1412	PanCamera
[5275]	1413	set _settings(-xpan) $_view(-xpan)
	1414	set _settings(-ypan) $_view(-ypan)
[1295]	1415	}
	1416	if { $option == "release" } {
[1349]	1417	$itk_component(3dview) configure -cursor ""
[1295]	1418	}
	1419	}
	1420
	1421	# ----------------------------------------------------------------------
[3396]	1422	# USAGE: InitSettings <what> ?<value>?
[1295]	1423	#
	1424	# Used internally to update rendering settings whenever parameters
	1425	# change in the popup settings panel. Sends the new settings off
	1426	# to the back end.
	1427	# ----------------------------------------------------------------------
[3396]	1428	itcl::body Rappture::FlowvisViewer::InitSettings { args } {
	1429	foreach arg $args {
	1430	AdjustSetting $arg
	1431	}
	1432	}
	1433
	1434	# ----------------------------------------------------------------------
	1435	# USAGE: AdjustSetting <what> ?<value>?
	1436	#
	1437	# Used internally to update rendering settings whenever parameters
	1438	# change in the popup settings panel. Sends the new settings off
	1439	# to the back end.
	1440	# ----------------------------------------------------------------------
	1441	itcl::body Rappture::FlowvisViewer::AdjustSetting {what {value ""}} {
[1295]	1442	switch -- $what {
[3396]	1443	colormap {
[5101]	1444	set color [$itk_component(colormap) value]
	1445	set _settings(colormap) $color
	1446	#ResetColormap $color
[3396]	1447	}
[1349]	1448	light {
[1491]	1449	if { $_first != "" } {
[1694]	1450	set comp [lindex [$_first components] 0]
	1451	set tag $_first-$comp
[2876]	1452	set diffuse [expr {0.01*$_settings($this-light)}]
[3362]	1453	set ambient [expr {1.0 - $diffuse}]
	1454	set specularLevel 0.3
	1455	set specularExp 90.0
	1456	SendCmd "$tag configure -ambient $ambient -diffuse $diffuse -specularLevel $specularLevel -specularExp $specularExp"
[1349]	1457	}
	1458	}
[3396]	1459	light2side {
	1460	if { $_first != "" } {
	1461	set comp [lindex [$_first components] 0]
	1462	set tag $_first-$comp
	1463	set val $_settings($this-light2side)
[3398]	1464	SendCmd "$tag configure -light2side $val"
[3396]	1465	}
	1466	}
[4727]	1467	opacity {
[1491]	1468	if { $_first != "" } {
[1694]	1469	set comp [lindex [$_first components] 0]
	1470	set tag $_first-$comp
[4727]	1471	set opacity [expr { 0.01 * double($_settings($this-opacity)) }]
[1479]	1472	SendCmd "$tag configure -opacity $opacity"
[1349]	1473	}
	1474	}
	1475	thickness {
[1494]	1476	if { $_first != "" && $_activeTf != "" } {
[1442]	1477	set val $_settings($this-thickness)
[1349]	1478	# Scale values between 0.00001 and 0.01000
	1479	set sval [expr {0.0001*double($val)}]
[1442]	1480	set tf $_activeTf
	1481	set _settings($this-$tf-thickness) $sval
[4555]	1482	updateTransferFunctions
[1349]	1483	}
	1484	}
	1485	"outline" {
[1491]	1486	if { $_first != "" } {
[1694]	1487	set comp [lindex [$_first components] 0]
	1488	set tag $_first-$comp
[1479]	1489	SendCmd "$tag configure -outline $_settings($this-outline)"
[1349]	1490	}
	1491	}
	1492	"isosurface" {
[1491]	1493	if { [isconnected] } {
[1694]	1494	SendCmd "volume shading isosurface $_settings($this-isosurface)"
	1495	}
[1349]	1496	}
	1497	"grid" {
	1498	if { [isconnected] } {
[1442]	1499	SendCmd "grid visible $_settings($this-grid)"
[1349]	1500	}
	1501	}
	1502	"axes" {
	1503	if { [isconnected] } {
[1442]	1504	SendCmd "axis visible $_settings($this-axes)"
[1349]	1505	}
	1506	}
[1694]	1507	"legend" {
	1508	if { $_settings($this-legend) } {
	1509	blt::table $itk_component(plotarea) \
	1510	0,0 $itk_component(3dview) -fill both \
[5101]	1511	1,0 $itk_component(legend) -fill x
[1694]	1512	blt::table configure $itk_component(plotarea) r1 -resize none
	1513	} else {
	1514	blt::table forget $itk_component(legend)
	1515	}
	1516	}
[1349]	1517	"volume" {
[1491]	1518	if { $_first != "" } {
[1694]	1519	set comp [lindex [$_first components] 0]
	1520	set tag $_first-$comp
[1479]	1521	SendCmd "$tag configure -volume $_settings($this-volume)"
[1694]	1522	}
[1349]	1523	}
[1442]	1524	"xcutplane" - "ycutplane" - "zcutplane" {
[1694]	1525	set axis [string range $what 0 0]
	1526	set bool $_settings($this-$what)
[1442]	1527	if { [isconnected] } {
[5101]	1528	set vols [CurrentVolumeIds -cutplanes]
[1694]	1529	SendCmd "cutplane state $bool $axis $vols"
	1530	}
	1531	if { $bool } {
	1532	$itk_component(${axis}CutScale) configure -state normal \
	1533	-troughcolor white
[1442]	1534	} else {
[1694]	1535	$itk_component(${axis}CutScale) configure -state disabled \
	1536	-troughcolor grey82
[1442]	1537	}
[1349]	1538	}
	1539	default {
	1540	error "don't know how to fix $what"
	1541	}
[1295]	1542	}
	1543	}
	1544
	1545	# ----------------------------------------------------------------------
[1448]	1546	# USAGE: ResizeLegend
[1295]	1547	#
[1349]	1548	# Used internally to update the legend area whenever it changes size
	1549	# or when the field changes. Asks the server to send a new legend
	1550	# for the current field.
[1295]	1551	# ----------------------------------------------------------------------
[1448]	1552	itcl::body Rappture::FlowvisViewer::ResizeLegend {} {
	1553	set _resizeLegendPending 0
[1349]	1554	set lineht [font metrics $itk_option(-font) -linespace]
[1442]	1555	set w [expr {$_width-20}]
[1349]	1556	set h [expr {[winfo height $itk_component(legend)]-20-$lineht}]
[1479]	1557
	1558	if { $_first == "" } {
[1694]	1559	return
[1479]	1560	}
	1561	set comp [lindex [$_first components] 0]
	1562	set tag $_first-$comp
[5275]	1563	#set _activeTf [lindex $_dataset2style($tag) 0]
[1442]	1564	if {$w > 0 && $h > 0 && "" != $_activeTf} {
[1479]	1565	#SendCmd "legend $_activeTf $w $h"
[1694]	1566	SendCmd "$tag legend $w $h"
[1349]	1567	} else {
	1568	# Can't do this as this will remove the items associated with the
	1569	# isomarkers.
	1570
	1571	#$itk_component(legend) delete all
	1572	}
	1573	}
	1574
	1575	#
[5275]	1576	# NameTransferFunction --
[1349]	1577	#
	1578	# Creates a transfer function name based on the <style> settings in the
	1579	# library run.xml file. This placeholder will be used later to create
	1580	# and send the actual transfer function once the data info has been sent
	1581	# to us by the render server. [We won't know the volume limits until the
	1582	# server parses the 3D data and sends back the limits via ReceiveData.]
	1583	#
	1584	# FIXME: The current way we generate transfer-function names completely
	1585	# ignores the -markers option. The problem is that we are forced
	1586	# to compute the name from an increasing complex set of values:
	1587	# color, levels, marker, opacity. I think we're stuck doing it
	1588	# now.
	1589	#
[5275]	1590	itcl::body Rappture::FlowvisViewer::NameTransferFunction { dataobj cname } {
[5187]	1591	array set style {
[3396]	1592	-color BCGYR
[1349]	1593	-levels 6
[4727]	1594	-opacity 0.5
[1295]	1595	}
[5187]	1596	array set style [lindex [$dataobj components -style $cname] 0]
	1597	set _settings($this-opacity) [expr $style(-opacity) * 100]
[5275]	1598	set _dataset2style($dataobj-$cname) $cname
	1599	lappend _style2datasets($cname) $dataobj $cname
[4547]	1600	return $cname
[1349]	1601	}
	1602
	1603	#
[5275]	1604	# ComputeTransferFunction --
[1349]	1605	#
	1606	# Computes and sends the transfer function to the render server. It's
	1607	# assumed that the volume data limits are known and that the global
	1608	# transfer-functions slider values have be setup. Both parts are
	1609	# needed to compute the relative value (location) of the marker, and
	1610	# the alpha map of the transfer function.
	1611	#
[5275]	1612	itcl::body Rappture::FlowvisViewer::ComputeTransferFunction { tf } {
[5187]	1613	array set style {
[3396]	1614	-color BCGYR
[1349]	1615	-levels 6
[4727]	1616	-opacity 0.5
[1349]	1617	}
	1618	set dataobj ""; set comp ""
[5275]	1619	foreach {dataobj comp} $_style2datasets($tf) break
[1349]	1620	if { $dataobj == "" } {
	1621	return 0
	1622	}
[5187]	1623	array set style [lindex [$dataobj components -style $comp] 0]
[1349]	1624
	1625	# We have to parse the style attributes for a volume using this
	1626	# transfer-function once. This sets up the initial isomarkers for the
	1627	# transfer function. The user may add/delete markers, so we have to
	1628	# maintain a list of markers for each transfer-function. We use the one
	1629	# of the volumes (the first in the list) using the transfer-function as a
	1630	# reference.
	1631	#
[5101]	1632	# FIXME: The current way we generate transfer-function names completely
	1633	# ignores the -markers option. The problem is that we are forced
	1634	# to compute the name from an increasing complex set of values:
[1349]	1635	# color, levels, marker, opacity. I think the cow's out of the
	1636	# barn on this one.
	1637
[1442]	1638	if { ![info exists _isomarkers($tf)] } {
[1349]	1639	# Have to defer creation of isomarkers until we have data limits
[5187]	1640	if { [info exists style(-markers)] &&
	1641	[llength $style(-markers)] > 0 } {
	1642	ParseMarkersOption $tf $style(-markers)
[1349]	1643	} else {
[5187]	1644	ParseLevelsOption $tf $style(-levels)
[1349]	1645	}
	1646	}
[5187]	1647	if { [info exists style(-nonuniformcolors)] } {
	1648	foreach { value color } $style(-nonuniformcolors) {
[1694]	1649	append cmap "$value [Color2RGB $color] "
	1650	}
[1479]	1651	} else {
[5187]	1652	set cmap [ColorsToColormap $style(-color)]
[1295]	1653	}
[4727]	1654
	1655	if { ![info exists _settings($this-opacity)] } {
[5187]	1656	set _settings($this-opacity) [expr $style(-opacity) * 100]
[1295]	1657	}
[4727]	1658
	1659	# Transfer function should be normalized with [0,1] range
	1660	# The volume shading opacity setting is used to scale opacity
	1661	# in the volume shader.
	1662	set max 1.0
	1663
[1349]	1664	set isovalues {}
[1442]	1665	foreach m $_isomarkers($tf) {
[1377]	1666	lappend isovalues [$m relval]
[1349]	1667	}
	1668	# Sort the isovalues
	1669	set isovalues [lsort -real $isovalues]
	1670
[4727]	1671	set tag $this-$tf
[1442]	1672	if { ![info exists _settings($tag-thickness)]} {
[3396]	1673	set _settings($tag-thickness) 0.005
[1349]	1674	}
[1442]	1675	set delta $_settings($tag-thickness)
[1349]	1676
	1677	set first [lindex $isovalues 0]
	1678	set last [lindex $isovalues end]
[5183]	1679	set amap ""
[1349]	1680	if { $first == "" \|\| $first != 0.0 } {
[5183]	1681	lappend amap 0.0 0.0
[1349]	1682	}
	1683	foreach x $isovalues {
	1684	set x1 [expr {$x-$delta-0.00001}]
	1685	set x2 [expr {$x-$delta}]
	1686	set x3 [expr {$x+$delta}]
	1687	set x4 [expr {$x+$delta+0.00001}]
	1688	if { $x1 < 0.0 } {
	1689	set x1 0.0
	1690	} elseif { $x1 > 1.0 } {
	1691	set x1 1.0
	1692	}
	1693	if { $x2 < 0.0 } {
	1694	set x2 0.0
	1695	} elseif { $x2 > 1.0 } {
	1696	set x2 1.0
	1697	}
	1698	if { $x3 < 0.0 } {
	1699	set x3 0.0
	1700	} elseif { $x3 > 1.0 } {
	1701	set x3 1.0
	1702	}
	1703	if { $x4 < 0.0 } {
	1704	set x4 0.0
	1705	} elseif { $x4 > 1.0 } {
	1706	set x4 1.0
	1707	}
	1708	# add spikes in the middle
[5183]	1709	lappend amap $x1 0.0
	1710	lappend amap $x2 $max
	1711	lappend amap $x3 $max
	1712	lappend amap $x4 0.0
[1349]	1713	}
	1714	if { $last == "" \|\| $last != 1.0 } {
[5183]	1715	lappend amap 1.0 0.0
[1349]	1716	}
[5183]	1717	SendCmd "transfunc define $tf { $cmap } { $amap }"
[3396]	1718	return [SendCmd "$dataobj-$comp configure -transferfunction $tf"]
[1295]	1719	}
	1720
	1721	# ----------------------------------------------------------------------
	1722	# CONFIGURATION OPTION: -plotbackground
	1723	# ----------------------------------------------------------------------
	1724	itcl::configbody Rappture::FlowvisViewer::plotbackground {
[1349]	1725	if { [isconnected] } {
[4550]	1726	set color $itk_option(-plotbackground)
	1727	set rgb [Color2RGB $color]
	1728	SendCmd "screen bgcolor $rgb"
	1729	$itk_component(legend) configure -background $color
[1349]	1730	}
[1295]	1731	}
	1732
	1733	# ----------------------------------------------------------------------
	1734	# CONFIGURATION OPTION: -plotforeground
	1735	# ----------------------------------------------------------------------
	1736	itcl::configbody Rappture::FlowvisViewer::plotforeground {
[1349]	1737	if { [isconnected] } {
[4550]	1738	set color $itk_option(-plotforeground)
	1739	set rgb [Color2RGB $color]
	1740	SendCmd "volume outline color $rgb"
	1741	SendCmd "grid axiscolor $rgb"
	1742	SendCmd "grid linecolor $rgb"
[4555]	1743	$itk_component(legend) itemconfigure labels -fill $color
	1744	$itk_component(legend) itemconfigure limits -fill $color
[1349]	1745	}
[1295]	1746	}
	1747
	1748	# ----------------------------------------------------------------------
	1749	# CONFIGURATION OPTION: -plotoutline
	1750	# ----------------------------------------------------------------------
	1751	itcl::configbody Rappture::FlowvisViewer::plotoutline {
[1349]	1752	# Must check if we are connected because this routine is called from the
	1753	# class body when the -plotoutline itk_option is defined. At that point
	1754	# the FlowvisViewer class constructor hasn't been called, so we can't
	1755	# start sending commands to visualization server.
	1756	if { [isconnected] } {
	1757	if {"" == $itk_option(-plotoutline)} {
	1758	SendCmd "volume outline state off"
	1759	} else {
	1760	SendCmd "volume outline state on"
	1761	SendCmd "volume outline color [Color2RGB $itk_option(-plotoutline)]"
	1762	}
[1295]	1763	}
	1764	}
[1349]	1765
	1766	#
	1767	# The -levels option takes a single value that represents the number
	1768	# of evenly distributed markers based on the current data range. Each
	1769	# marker is a relative value from 0.0 to 1.0.
	1770	#
[1442]	1771	itcl::body Rappture::FlowvisViewer::ParseLevelsOption { tf levels } {
[1349]	1772	set c $itk_component(legend)
	1773	regsub -all "," $levels " " levels
	1774	if {[string is int $levels]} {
	1775	for {set i 1} { $i <= $levels } {incr i} {
	1776	set x [expr {double($i)/($levels+1)}]
[1442]	1777	set m [Rappture::IsoMarker \#auto $c $this $tf]
[4555]	1778	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
[1377]	1779	$m relval $x
[5101]	1780	lappend _isomarkers($tf) $m
[1349]	1781	}
	1782	} else {
	1783	foreach x $levels {
[1442]	1784	set m [Rappture::IsoMarker \#auto $c $this $tf]
[4555]	1785	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
[1377]	1786	$m relval $x
[5101]	1787	lappend _isomarkers($tf) $m
[1349]	1788	}
	1789	}
	1790	}
	1791
	1792	#
	1793	# The -markers option takes a list of zero or more values (the values
[5101]	1794	# may be separated either by spaces or commas) that have the following
[1349]	1795	# format:
	1796	#
	1797	# N% Percent of current total data range. Converted to
	1798	# to a relative value between 0.0 and 1.0.
	1799	# N Absolute value of marker. If the marker is outside of
	1800	# the current range, it will be displayed on the outer
	1801	# edge of the legends, but it range it represents will
	1802	# not be seen.
	1803	#
[1442]	1804	itcl::body Rappture::FlowvisViewer::ParseMarkersOption { tf markers } {
[1349]	1805	set c $itk_component(legend)
	1806	regsub -all "," $markers " " markers
	1807	foreach marker $markers {
	1808	set n [scan $marker "%g%s" value suffix]
	1809	if { $n == 2 && $suffix == "%" } {
[5101]	1810	# ${n}% : Set relative value.
[1349]	1811	set value [expr {$value * 0.01}]
[1442]	1812	set m [Rappture::IsoMarker \#auto $c $this $tf]
[4555]	1813	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
[1377]	1814	$m relval $value
[1442]	1815	lappend _isomarkers($tf) $m
[1349]	1816	} else {
	1817	# ${n} : Set absolute value.
[1442]	1818	set m [Rappture::IsoMarker \#auto $c $this $tf]
[4555]	1819	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
[1377]	1820	$m absval $value
[1442]	1821	lappend _isomarkers($tf) $m
[1349]	1822	}
	1823	}
	1824	}
	1825
	1826	# ----------------------------------------------------------------------
[5275]	1827	# USAGE: UpdateTransferFunctions
[1349]	1828	# ----------------------------------------------------------------------
[4555]	1829	itcl::body Rappture::FlowvisViewer::updateTransferFunctions {} {
[1479]	1830	$_dispatcher event -after 100 !send_transfunc
[1349]	1831	}
	1832
	1833	itcl::body Rappture::FlowvisViewer::AddIsoMarker { x y } {
[1442]	1834	if { $_activeTf == "" } {
[1349]	1835	error "active transfer function isn't set"
	1836	}
[5101]	1837	set tf $_activeTf
[1349]	1838	set c $itk_component(legend)
[1442]	1839	set m [Rappture::IsoMarker \#auto $c $this $tf]
[4555]	1840	$itk_component(legend) itemconfigure labels -fill $itk_option(-plotforeground)
[1349]	1841	set w [winfo width $c]
[1377]	1842	$m relval [expr {double($x-10)/($w-20)}]
[1442]	1843	lappend _isomarkers($tf) $m
[4555]	1844	updateTransferFunctions
[1349]	1845	return 1
	1846	}
	1847
[4555]	1848	itcl::body Rappture::FlowvisViewer::removeDuplicateMarker { marker x } {
[1377]	1849	set tf [$marker transferfunc]
[1349]	1850	set bool 0
[1442]	1851	if { [info exists _isomarkers($tf)] } {
[1349]	1852	set list {}
	1853	set marker [namespace tail $marker]
[1442]	1854	foreach m $_isomarkers($tf) {
[1377]	1855	set sx [$m screenpos]
[1349]	1856	if { $m != $marker } {
	1857	if { $x >= ($sx-3) && $x <= ($sx+3) } {
[1377]	1858	$marker relval [$m relval]
[1349]	1859	itcl::delete object $m
	1860	bell
	1861	set bool 1
	1862	continue
	1863	}
	1864	}
	1865	lappend list $m
	1866	}
[1442]	1867	set _isomarkers($tf) $list
[4555]	1868	updateTransferFunctions
[1349]	1869	}
	1870	return $bool
	1871	}
	1872
[4555]	1873	itcl::body Rappture::FlowvisViewer::overMarker { marker x } {
[1377]	1874	set tf [$marker transferfunc]
[1442]	1875	if { [info exists _isomarkers($tf)] } {
[1349]	1876	set marker [namespace tail $marker]
[1442]	1877	foreach m $_isomarkers($tf) {
[1377]	1878	set sx [$m screenpos]
[1349]	1879	if { $m != $marker } {
	1880	set bool [expr { $x >= ($sx-3) && $x <= ($sx+3) }]
[1376]	1881	$m activate $bool
[1349]	1882	}
	1883	}
	1884	}
	1885	return ""
	1886	}
	1887
[4547]	1888	itcl::body Rappture::FlowvisViewer::limits { cname } {
	1889	set _limits(v) [list 0.0 1.0]
[5275]	1890	if { ![info exists _style2datasets($cname)] } {
	1891	puts stderr "no _style2datasets for cname=($cname)"
[1694]	1892	return [array get _limits]
[1349]	1893	}
[1442]	1894	set min ""; set max ""
[4547]	1895	foreach tag [GetDatasetsWithComponent $cname] {
[5275]	1896	if { ![info exists _serverDatasets($tag)] } {
	1897	puts stderr "$tag not in _serverDatasets?"
[1694]	1898	continue
	1899	}
[4547]	1900	if { ![info exists _limits($tag)] } {
[1694]	1901	puts stderr "$tag no min?"
	1902	continue
	1903	}
[4547]	1904	foreach {vmin vmax} $_limits($tag) break
	1905	if { $min == "" \|\| $min > $vmin } {
	1906	set min $vmin
[1694]	1907	}
[4547]	1908	if { $max == "" \|\| $max < $vmax } {
	1909	set max $vmax
[1694]	1910	}
[1349]	1911	}
[4547]	1912	if { $min != "" && $max != "" } {
	1913	set _limits(v) [list $min $max]
	1914	set _limits($cname) [list $min $max]
[1442]	1915	}
[4547]	1916	return $_limits($cname)
[1349]	1917	}
	1918
[1373]	1919	itcl::body Rappture::FlowvisViewer::BuildViewTab {} {
[1349]	1920	foreach { key value } {
[2744]	1921	grid 0
	1922	axes 0
	1923	outline 1
	1924	volume 1
	1925	legend 1
	1926	particles 1
	1927	lic 1
[1349]	1928	} {
[1694]	1929	set _settings($this-$key) $value
[1349]	1930	}
	1931
	1932	set fg [option get $itk_component(hull) font Font]
	1933	#set bfg [option get $itk_component(hull) boldFont Font]
	1934
[1375]	1935	set inner [$itk_component(main) insert end \
	1936	-title "View Settings" \
	1937	-icon [Rappture::icon wrench]]
	1938	$inner configure -borderwidth 4
	1939
[1442]	1940	set ::Rappture::FlowvisViewer::_settings($this-isosurface) 0
[1349]	1941	checkbutton $inner.isosurface \
	1942	-text "Isosurface shading" \
[1442]	1943	-variable [itcl::scope _settings($this-isosurface)] \
[3396]	1944	-command [itcl::code $this AdjustSetting isosurface] \
[1694]	1945	-font "Arial 9"
[1349]	1946
	1947	checkbutton $inner.axes \
	1948	-text "Axes" \
[1442]	1949	-variable [itcl::scope _settings($this-axes)] \
[3396]	1950	-command [itcl::code $this AdjustSetting axes] \
[1694]	1951	-font "Arial 9"
[1349]	1952
	1953	checkbutton $inner.grid \
	1954	-text "Grid" \
[1442]	1955	-variable [itcl::scope _settings($this-grid)] \
[3396]	1956	-command [itcl::code $this AdjustSetting grid] \
[1694]	1957	-font "Arial 9"
[1349]	1958
	1959	checkbutton $inner.outline \
	1960	-text "Outline" \
[1442]	1961	-variable [itcl::scope _settings($this-outline)] \
[3396]	1962	-command [itcl::code $this AdjustSetting outline] \
[1694]	1963	-font "Arial 9"
[1349]	1964
	1965	checkbutton $inner.legend \
	1966	-text "Legend" \
[1442]	1967	-variable [itcl::scope _settings($this-legend)] \
[3396]	1968	-command [itcl::code $this AdjustSetting legend] \
[1694]	1969	-font "Arial 9"
[1349]	1970
	1971	checkbutton $inner.volume \
	1972	-text "Volume" \
[1442]	1973	-variable [itcl::scope _settings($this-volume)] \
[3396]	1974	-command [itcl::code $this AdjustSetting volume] \
[1694]	1975	-font "Arial 9"
[1349]	1976
	1977	checkbutton $inner.particles \
	1978	-text "Particles" \
[1442]	1979	-variable [itcl::scope _settings($this-particles)] \
[3396]	1980	-command [itcl::code $this AdjustSetting particles] \
[1694]	1981	-font "Arial 9"
[1349]	1982
	1983	checkbutton $inner.lic \
	1984	-text "Lic" \
[1442]	1985	-variable [itcl::scope _settings($this-lic)] \
[3396]	1986	-command [itcl::code $this AdjustSetting lic] \
[1694]	1987	-font "Arial 9"
[1349]	1988
[1442]	1989	frame $inner.frame
	1990
[1349]	1991	blt::table $inner \
[3441]	1992	0,0 $inner.axes -cspan 2 -anchor w \
	1993	1,0 $inner.grid -cspan 2 -anchor w \
	1994	2,0 $inner.outline -cspan 2 -anchor w \
	1995	3,0 $inner.volume -cspan 2 -anchor w \
[5101]	1996	4,0 $inner.legend -cspan 2 -anchor w
[1349]	1997
[1442]	1998	bind $inner <Map> [itcl::code $this GetFlowInfo $inner]
	1999
	2000	blt::table configure $inner r* -resize none
	2001	blt::table configure $inner r5 -resize expand
[1349]	2002	}
	2003
[1373]	2004	itcl::body Rappture::FlowvisViewer::BuildVolumeTab {} {
[1375]	2005	set inner [$itk_component(main) insert end \
	2006	-title "Volume Settings" \
[1442]	2007	-icon [Rappture::icon volume-on]]
[1375]	2008	$inner configure -borderwidth 4
[1349]	2009
[1373]	2010	set fg [option get $itk_component(hull) font Font]
	2011	#set bfg [option get $itk_component(hull) boldFont Font]
	2012
[1491]	2013	checkbutton $inner.vol -text "Show volume" -font $fg \
	2014	-text "Volume" \
	2015	-variable [itcl::scope _settings($this-volume)] \
[3396]	2016	-command [itcl::code $this AdjustSetting volume] \
[1694]	2017	-font "Arial 9"
[1491]	2018
	2019	label $inner.shading -text "Shading:" -font $fg
	2020
[3396]	2021	checkbutton $inner.light2side -text "Two-sided lighting" -font $fg \
	2022	-variable [itcl::scope _settings($this-light2side)] \
	2023	-command [itcl::code $this AdjustSetting light2side]
	2024
[3362]	2025	label $inner.dim -text "Glow" -font $fg
[1373]	2026	::scale $inner.light -from 0 -to 100 -orient horizontal \
[1442]	2027	-variable [itcl::scope _settings($this-light)] \
[1694]	2028	-width 10 \
[3396]	2029	-showvalue off -command [itcl::code $this AdjustSetting light]
[3362]	2030	label $inner.bright -text "Surface" -font $fg
[1373]	2031
	2032	label $inner.clear -text "Clear" -font $fg
	2033	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
[1442]	2034	-variable [itcl::scope _settings($this-opacity)] \
[1694]	2035	-width 10 \
[3396]	2036	-showvalue off -command [itcl::code $this AdjustSetting opacity]
[1373]	2037	label $inner.opaque -text "Opaque" -font $fg
	2038
	2039	label $inner.thin -text "Thin" -font $fg
	2040	::scale $inner.thickness -from 0 -to 1000 -orient horizontal \
[1442]	2041	-variable [itcl::scope _settings($this-thickness)] \
[1694]	2042	-width 10 \
[3396]	2043	-showvalue off -command [itcl::code $this AdjustSetting thickness]
[1373]	2044	label $inner.thick -text "Thick" -font $fg
	2045
[5101]	2046	label $inner.colormap_l -text "Colormap" -font "Arial 9"
[3396]	2047	itk_component add colormap {
	2048	Rappture::Combobox $inner.colormap -width 10 -editable no
	2049	}
	2050
[4449]	2051	$inner.colormap choices insert end [GetColormapList -includeNone]
[3396]	2052	$itk_component(colormap) value "BCGYR"
	2053	bind $inner.colormap <<Value>> \
	2054	[itcl::code $this AdjustSetting colormap]
	2055
[1373]	2056	blt::table $inner \
[3396]	2057	0,0 $inner.vol -cspan 4 -anchor w -pady 2 \
[3441]	2058	1,0 $inner.shading -cspan 4 -anchor w -pady {10 2} \
	2059	2,0 $inner.light2side -cspan 4 -anchor w -pady 2 \
[3396]	2060	3,0 $inner.dim -anchor e -pady 2 \
[3441]	2061	3,1 $inner.light -cspan 2 -pady 2 -fill x \
[3396]	2062	3,3 $inner.bright -anchor w -pady 2 \
[4727]	2063	4,0 $inner.clear -anchor e -pady 2 \
	2064	4,1 $inner.opacity -cspan 2 -pady 2 -fill x \
	2065	4,3 $inner.opaque -anchor w -pady 2 \
[3396]	2066	5,0 $inner.thin -anchor e -pady 2 \
[3441]	2067	5,1 $inner.thickness -cspan 2 -pady 2 -fill x\
[3396]	2068	5,3 $inner.thick -anchor w -pady 2
[1491]	2069
[1442]	2070	blt::table configure $inner c0 c1 c3 r* -resize none
[3396]	2071	blt::table configure $inner r6 -resize expand
[1373]	2072	}
	2073
	2074	itcl::body Rappture::FlowvisViewer::BuildCutplanesTab {} {
[1375]	2075	set inner [$itk_component(main) insert end \
	2076	-title "Cutplane Settings" \
	2077	-icon [Rappture::icon cutbutton]]
	2078	$inner configure -borderwidth 4
[1373]	2079
[1349]	2080	# X-value slicer...
	2081	itk_component add xCutButton {
[1442]	2082	Rappture::PushButton $inner.xbutton \
[1694]	2083	-onimage [Rappture::icon x-cutplane] \
	2084	-offimage [Rappture::icon x-cutplane] \
[3396]	2085	-command [itcl::code $this AdjustSetting xcutplane] \
[1694]	2086	-variable [itcl::scope _settings($this-xcutplane)]
[1349]	2087	}
	2088	Rappture::Tooltip::for $itk_component(xCutButton) \
	2089	"Toggle the X cut plane on/off"
	2090
	2091	itk_component add xCutScale {
[1375]	2092	::scale $inner.xval -from 100 -to 0 \
[1349]	2093	-width 10 -orient vertical -showvalue off \
[1376]	2094	-borderwidth 1 -highlightthickness 0 \
[1442]	2095	-command [itcl::code $this Slice move x] \
[1694]	2096	-variable [itcl::scope _settings($this-xcutposition)]
[1349]	2097	} {
	2098	usual
[1375]	2099	ignore -borderwidth -highlightthickness
[1349]	2100	}
[1376]	2101	# Set the default cutplane value before disabling the scale.
[1349]	2102	$itk_component(xCutScale) set 50
[1376]	2103	$itk_component(xCutScale) configure -state disabled
[1349]	2104	Rappture::Tooltip::for $itk_component(xCutScale) \
	2105	"@[itcl::code $this SlicerTip x]"
	2106
	2107	# Y-value slicer...
	2108	itk_component add yCutButton {
[1442]	2109	Rappture::PushButton $inner.ybutton \
[1694]	2110	-onimage [Rappture::icon y-cutplane] \
	2111	-offimage [Rappture::icon y-cutplane] \
[3396]	2112	-command [itcl::code $this AdjustSetting ycutplane] \
[1694]	2113	-variable [itcl::scope _settings($this-ycutplane)]
[1349]	2114	}
	2115	Rappture::Tooltip::for $itk_component(yCutButton) \
	2116	"Toggle the Y cut plane on/off"
	2117
	2118	itk_component add yCutScale {
[1375]	2119	::scale $inner.yval -from 100 -to 0 \
[1349]	2120	-width 10 -orient vertical -showvalue off \
[1376]	2121	-borderwidth 1 -highlightthickness 0 \
[1442]	2122	-command [itcl::code $this Slice move y] \
[1694]	2123	-variable [itcl::scope _settings($this-ycutposition)]
[1349]	2124	} {
	2125	usual
[1375]	2126	ignore -borderwidth -highlightthickness
[1349]	2127	}
	2128	Rappture::Tooltip::for $itk_component(yCutScale) \
	2129	"@[itcl::code $this SlicerTip y]"
[1376]	2130	# Set the default cutplane value before disabling the scale.
[1373]	2131	$itk_component(yCutScale) set 50
[1376]	2132	$itk_component(yCutScale) configure -state disabled
[1349]	2133
	2134	# Z-value slicer...
	2135	itk_component add zCutButton {
[1442]	2136	Rappture::PushButton $inner.zbutton \
[1694]	2137	-onimage [Rappture::icon z-cutplane] \
	2138	-offimage [Rappture::icon z-cutplane] \
[3396]	2139	-command [itcl::code $this AdjustSetting zcutplane] \
[1694]	2140	-variable [itcl::scope _settings($this-zcutplane)]
[1349]	2141	}
	2142	Rappture::Tooltip::for $itk_component(zCutButton) \
	2143	"Toggle the Z cut plane on/off"
	2144
	2145	itk_component add zCutScale {
[1375]	2146	::scale $inner.zval -from 100 -to 0 \
[1349]	2147	-width 10 -orient vertical -showvalue off \
[1376]	2148	-borderwidth 1 -highlightthickness 0 \
[1442]	2149	-command [itcl::code $this Slice move z] \
[1694]	2150	-variable [itcl::scope _settings($this-zcutposition)]
[1349]	2151	} {
	2152	usual
[1375]	2153	ignore -borderwidth -highlightthickness
[1349]	2154	}
	2155	$itk_component(zCutScale) set 50
[1376]	2156	$itk_component(zCutScale) configure -state disabled
[1349]	2157	#$itk_component(zCutScale) configure -state disabled
	2158	Rappture::Tooltip::for $itk_component(zCutScale) \
	2159	"@[itcl::code $this SlicerTip z]"
	2160
	2161	blt::table $inner \
[1694]	2162	1,1 $itk_component(xCutButton) \
	2163	1,2 $itk_component(yCutButton) \
	2164	1,3 $itk_component(zCutButton) \
	2165	0,1 $itk_component(xCutScale) \
	2166	0,2 $itk_component(yCutScale) \
	2167	0,3 $itk_component(zCutScale) \
[1375]	2168
[1376]	2169	blt::table configure $inner r0 r1 c* -resize none
	2170	blt::table configure $inner r2 c4 -resize expand
	2171	blt::table configure $inner c0 -width 2
	2172	blt::table configure $inner c1 c2 c3 -padx 2
[1349]	2173	}
	2174
[1373]	2175	itcl::body Rappture::FlowvisViewer::BuildCameraTab {} {
[1375]	2176	set inner [$itk_component(main) insert end \
	2177	-title "Camera Settings" \
	2178	-icon [Rappture::icon camera]]
	2179	$inner configure -borderwidth 4
[1349]	2180
[5101]	2181	label $inner.view_l -text "view" -font "Arial 9"
	2182	set f [frame $inner.view]
	2183	foreach side { front back left right top bottom } {
[3533]	2184	button $f.$side -image [Rappture::icon view$side] \
[5101]	2185	-command [itcl::code $this SetOrientation $side]
	2186	Rappture::Tooltip::for $f.$side "Change the view to $side"
	2187	pack $f.$side -side left
[3492]	2188	}
[3533]	2189
[3492]	2190	blt::table $inner \
[3533]	2191	0,0 $inner.view_l -anchor e -pady 2 \
[5101]	2192	0,1 $inner.view -anchor w -pady 2
[4772]	2193	blt::table configure $inner r0 -resize none
[3492]	2194
[5101]	2195	set row 1
[3533]	2196	set labels { qw qx qy qz xpan ypan zoom }
[1349]	2197	foreach tag $labels {
[1694]	2198	label $inner.${tag}label -text $tag -font "Arial 9"
	2199	entry $inner.${tag} -font "Arial 9" -bg white \
[5275]	2200	-textvariable [itcl::scope _settings(-$tag)]
[4759]	2201	bind $inner.${tag} <Return> \
[4766]	2202	[itcl::code $this camera set -${tag}]
[4759]	2203	bind $inner.${tag} <KP_Enter> \
[4766]	2204	[itcl::code $this camera set -${tag}]
[1694]	2205	blt::table $inner \
	2206	$row,0 $inner.${tag}label -anchor e -pady 2 \
	2207	$row,1 $inner.${tag} -anchor w -pady 2
[1375]	2208	blt::table configure $inner r$row -resize none
[1694]	2209	incr row
[1349]	2210	}
[3533]	2211
[4772]	2212	blt::table configure $inner c* -resize none
[1373]	2213	blt::table configure $inner c2 -resize expand
[1375]	2214	blt::table configure $inner r$row -resize expand
[1349]	2215	}
	2216
[1442]	2217	itcl::body Rappture::FlowvisViewer::GetFlowInfo { w } {
[1444]	2218	set flowobj ""
[5275]	2219	foreach key [array names _dataset2flow] {
	2220	set flowobj $_dataset2flow($key)
[1694]	2221	break
[1442]	2222	}
[1444]	2223	if { $flowobj == "" } {
[1694]	2224	return
[1444]	2225	}
[1442]	2226	if { [winfo exists $w.frame] } {
[1694]	2227	destroy $w.frame
[1442]	2228	}
	2229	set inner [frame $w.frame]
	2230	blt::table $w \
[3441]	2231	5,0 $inner -fill both -cspan 2 -anchor nw
[1442]	2232	array set hints [$flowobj hints]
	2233	checkbutton $inner.showstreams -text "Streams Plane" \
[1694]	2234	-variable [itcl::scope _settings($this-streams)] \
	2235	-command [itcl::code $this streams $key $hints(name)] \
	2236	-font "Arial 9"
[1449]	2237	Rappture::Tooltip::for $inner.showstreams $hints(description)
[1491]	2238
	2239	checkbutton $inner.showarrows -text "Arrows" \
[1694]	2240	-variable [itcl::scope _settings($this-arrows)] \
	2241	-command [itcl::code $this arrows $key $hints(name)] \
	2242	-font "Arial 9"
[1491]	2243
[1694]	2244	label $inner.particles -text "Particles" -font "Arial 9 bold"
	2245	label $inner.boxes -text "Boxes" -font "Arial 9 bold"
[1442]	2246
	2247	blt::table $inner \
[1694]	2248	1,0 $inner.showstreams -anchor w \
[5101]	2249	2,0 $inner.showarrows -anchor w
[1491]	2250	blt::table configure $inner c0 c1 -resize none
	2251	blt::table configure $inner c2 -resize expand
[1442]	2252
[1491]	2253	set row 3
[1442]	2254	set particles [$flowobj particles]
	2255	if { [llength $particles] > 0 } {
[1694]	2256	blt::table $inner $row,0 $inner.particles -anchor w
	2257	incr row
[1442]	2258	}
	2259	foreach part $particles {
[1694]	2260	array unset info
	2261	array set info $part
	2262	set name $info(name)
	2263	if { ![info exists _settings($this-particles-$name)] } {
	2264	set _settings($this-particles-$name) $info(hide)
	2265	}
	2266	checkbutton $inner.part$row -text $info(label) \
	2267	-variable [itcl::scope _settings($this-particles-$name)] \
	2268	-onvalue 0 -offvalue 1 \
	2269	-command [itcl::code $this particles $key $name] \
	2270	-font "Arial 9"
	2271	Rappture::Tooltip::for $inner.part$row $info(description)
[5101]	2272	blt::table $inner $row,0 $inner.part$row -anchor w
[1694]	2273	if { !$_settings($this-particles-$name) } {
	2274	$inner.part$row select
[5101]	2275	}
[1694]	2276	incr row
[1442]	2277	}
	2278	set boxes [$flowobj boxes]
	2279	if { [llength $boxes] > 0 } {
[1694]	2280	blt::table $inner $row,0 $inner.boxes -anchor w
	2281	incr row
[1442]	2282	}
	2283	foreach box $boxes {
[1694]	2284	array unset info
	2285	array set info $box
	2286	set name $info(name)
	2287	if { ![info exists _settings($this-box-$name)] } {
	2288	set _settings($this-box-$name) $info(hide)
	2289	}
	2290	checkbutton $inner.box$row -text $info(label) \
	2291	-variable [itcl::scope _settings($this-box-$name)] \
	2292	-onvalue 0 -offvalue 1 \
	2293	-command [itcl::code $this box $key $name] \
	2294	-font "Arial 9"
	2295	Rappture::Tooltip::for $inner.box$row $info(description)
	2296	blt::table $inner $row,0 $inner.box$row -anchor w
	2297	if { !$_settings($this-box-$name) } {
	2298	$inner.box$row select
[5101]	2299	}
[1694]	2300	incr row
[1442]	2301	}
	2302	blt::table configure $inner r* -resize none
	2303	blt::table configure $inner r$row -resize expand
	2304	blt::table configure $inner c3 -resize expand
[5101]	2305	event generate [winfo parent [winfo parent $w]] <Configure>
[1442]	2306	}
	2307
	2308	itcl::body Rappture::FlowvisViewer::particles { tag name } {
	2309	set bool $_settings($this-particles-$name)
[1448]	2310	SendCmd "$tag particles configure {$name} -hide $bool"
[1442]	2311	}
	2312
	2313	itcl::body Rappture::FlowvisViewer::box { tag name } {
	2314	set bool $_settings($this-box-$name)
[1448]	2315	SendCmd "$tag box configure {$name} -hide $bool"
[1442]	2316	}
	2317
	2318	itcl::body Rappture::FlowvisViewer::streams { tag name } {
	2319	set bool $_settings($this-streams)
	2320	SendCmd "$tag configure -slice $bool"
	2321	}
	2322
[1491]	2323	itcl::body Rappture::FlowvisViewer::arrows { tag name } {
	2324	set bool $_settings($this-arrows)
[2965]	2325	SendCmd "$tag configure -arrows $bool"
[1491]	2326	}
	2327
[1442]	2328	# ----------------------------------------------------------------------
	2329	# USAGE: Slice move x\|y\|z <newval>
	2330	#
	2331	# Called automatically when the user drags the slider to move the
	2332	# cut plane that slices 3D data. Gets the current value from the
	2333	# slider and moves the cut plane to the appropriate point in the
	2334	# data set.
	2335	# ----------------------------------------------------------------------
	2336	itcl::body Rappture::FlowvisViewer::Slice {option args} {
	2337	switch -- $option {
	2338	move {
	2339	if {[llength $args] != 2} {
	2340	error "wrong # args: should be \"Slice move x\|y\|z newval\""
	2341	}
	2342	set axis [lindex $args 0]
	2343	set newval [lindex $args 1]
	2344	set newpos [expr {0.01*$newval}]
	2345
	2346	# show the current value in the readout
	2347
	2348	set ids [CurrentVolumeIds -cutplanes]
	2349	SendCmd "cutplane position $newpos $axis $ids"
	2350	}
	2351	default {
	2352	error "bad option \"$option\": should be axis, move, or volume"
	2353	}
	2354	}
	2355	}
	2356
	2357	# ----------------------------------------------------------------------
	2358	# USAGE: SlicerTip <axis>
	2359	#
	2360	# Used internally to generate a tooltip for the x/y/z slicer controls.
	2361	# Returns a message that includes the current slicer value.
	2362	# ----------------------------------------------------------------------
	2363	itcl::body Rappture::FlowvisViewer::SlicerTip {axis} {
	2364	set val [$itk_component(${axis}CutScale) get]
	2365	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
	2366	}
	2367
[1491]	2368	itcl::body Rappture::FlowvisViewer::Resize {} {
[3396]	2369	$_arcball resize $_width $_height
[3478]	2370	SendCmd "screen size $_width $_height"
[1448]	2371	set _resizePending 0
[1442]	2372	}
	2373
	2374	itcl::body Rappture::FlowvisViewer::EventuallyResize { w h } {
[1448]	2375	set _width $w
	2376	set _height $h
[3362]	2377	$_arcball resize $w $h
[1448]	2378	if { !$_resizePending } {
[1694]	2379	$_dispatcher event -after 200 !resize
	2380	set _resizePending 1
[1442]	2381	}
	2382	}
	2383
	2384	itcl::body Rappture::FlowvisViewer::EventuallyResizeLegend {} {
[1448]	2385	if { !$_resizeLegendPending } {
[1694]	2386	$_dispatcher event -after 100 !legend
	2387	set _resizeLegendPending 1
[1448]	2388	}
[1442]	2389	}
	2390
[1471]	2391	itcl::body Rappture::FlowvisViewer::EventuallyGoto { nSteps } {
	2392	set _flow(goto) $nSteps
	2393	if { !$_gotoPending } {
[1694]	2394	$_dispatcher event -after 1000 !goto
	2395	set _gotoPending 1
[1471]	2396	}
	2397	}
	2398
[5101]	2399	# camera --
[1349]	2400	itcl::body Rappture::FlowvisViewer::camera {option args} {
[5101]	2401	switch -- $option {
[1694]	2402	"show" {
	2403	puts [array get _view]
	2404	}
	2405	"set" {
[4766]	2406	set what [lindex $args 0]
	2407	set x $_settings(${this}${what})
[1694]	2408	set code [catch { string is double $x } result]
	2409	if { $code != 0 \|\| !$result } {
[4766]	2410	set _settings(${this}${what}) $_view($what)
[1694]	2411	return
	2412	}
[4766]	2413	switch -- $what {
	2414	"-xpan" - "-ypan" {
	2415	set _view($what) $_settings(${this}${what})
[1694]	2416	PanCamera
	2417	}
[4766]	2418	"-qx" - "-qy" - "-qz" - "-qw" {
	2419	set _view($what) $_settings(${this}${what})
	2420	set q [ViewToQuaternion]
[3362]	2421	$_arcball quaternion $q
	2422	SendCmd "camera orient $q"
	2423	}
[4766]	2424	"-zoom" {
	2425	set _view($what) $_settings(${this}${what})
	2426	SendCmd "camera zoom $_view($what)"
[1694]	2427	}
	2428	}
	2429	}
[1349]	2430	}
	2431	}
[1355]	2432
[5143]	2433	itcl::body Rappture::FlowvisViewer::SendFlowCmd { dataobj comp nbytes extents } {
[1442]	2434	set tag "$dataobj-$comp"
[5275]	2435	if { ![info exists _dataset2flow($tag)] } {
[5143]	2436	SendCmd "flow add $tag"
	2437	SendCmd "$tag data follows $nbytes $extents"
	2438	return 0
[1442]	2439	}
[5275]	2440	set flowobj $_dataset2flow($tag)
[1442]	2441	if { $flowobj == "" } {
[1694]	2442	puts stderr "no flowobj"
[5143]	2443	return -1
[1442]	2444	}
[5143]	2445	SendCmd "if {\[flow exists $tag\]} {flow delete $tag}"
[1442]	2446	array set info [$flowobj hints]
[1496]	2447	set _settings($this-volume) $info(volume)
	2448	set _settings($this-outline) $info(outline)
	2449	set _settings($this-arrows) $info(arrows)
	2450	set _settings($this-duration) $info(duration)
	2451	$itk_component(speed) value $info(speed)
[5143]	2452	set cmd {}
[1514]	2453	append cmd "flow add $tag"
	2454	append cmd " -position $info(position)"
	2455	append cmd " -axis $info(axis)"
	2456	append cmd " -volume $info(volume)"
	2457	append cmd " -outline $info(outline)"
	2458	append cmd " -slice $info(streams)"
[5143]	2459	append cmd " -arrows $info(arrows)"
	2460	SendCmd $cmd
[1442]	2461	foreach part [$flowobj particles] {
[5143]	2462	set cmd {}
[1694]	2463	array unset info
	2464	array set info $part
	2465	set color [Color2RGB $info(color)]
	2466	append cmd "$tag particles add $info(name)"
	2467	append cmd " -position $info(position)"
	2468	append cmd " -hide $info(hide)"
	2469	append cmd " -axis $info(axis)"
	2470	append cmd " -color {$color}"
[5143]	2471	append cmd " -size $info(size)"
	2472	SendCmd $cmd
[1442]	2473	}
	2474	foreach box [$flowobj boxes] {
[5143]	2475	set cmd {}
[1694]	2476	array unset info
	2477	set info(corner1) ""
	2478	set info(corner2) ""
	2479	array set info $box
	2480	if { $info(corner1) == "" \|\| $info(corner2) == "" } {
	2481	continue
	2482	}
	2483	set color [Color2RGB $info(color)]
	2484	append cmd "$tag box add $info(name)"
[1514]	2485	append cmd " -color {$color}"
[1694]	2486	append cmd " -hide $info(hide)"
[1514]	2487	append cmd " -linewidth $info(linewidth) "
[1694]	2488	append cmd " -corner1 {$info(corner1)} "
[5143]	2489	append cmd " -corner2 {$info(corner2)}"
	2490	SendCmd $cmd
[5101]	2491	}
[5143]	2492	SendCmd "$tag data follows $nbytes $extents"
	2493	return 0
[1442]	2494	}
	2495
	2496	#
	2497	# flow --
	2498	#
	2499	# Called when the user clicks on the stop or play buttons
	2500	# for flow visualization.
	2501	#
[1694]	2502	# $this flow play
	2503	# $this flow stop
	2504	# $this flow toggle
	2505	# $this flow reset
	2506	# $this flow pause
	2507	# $this flow next
[1442]	2508	#
[1448]	2509	itcl::body Rappture::FlowvisViewer::flow { args } {
	2510	set option [lindex $args 0]
[1442]	2511	switch -- $option {
[1694]	2512	"goto2" {
	2513	puts stderr "actually sending \"flow goto $_flow(goto)\""
	2514	SendCmd "flow goto $_flow(goto)"
	2515	set _gotoPending 0
	2516	}
	2517	"goto" {
	2518	puts stderr "flow goto to $_settings($this-currenttime)"
	2519	# Figure out how many steps to the current time based upon
	2520	# the speed and duration.
	2521	set current $_settings($this-currenttime)
	2522	set speed [$itk_component(speed) value]
	2523	set time [str2millisecs $_settings($this-duration)]
	2524	$itk_component(dial) configure -max $time
	2525	set delay [expr int(round(500.0/$speed))]
	2526	set timePerStep [expr {double($time) / $delay}]
	2527	set nSteps [expr {int(ceil($current/$timePerStep))}]
	2528	EventuallyGoto $nSteps
	2529	}
	2530	"speed" {
	2531	set speed [$itk_component(speed) value]
	2532	set _flow(delay) [expr int(round(500.0/$speed))]
	2533	}
	2534	"duration" {
	2535	set max [str2millisecs $_settings($this-duration)]
	2536	if { $max < 0 } {
	2537	bell
	2538	return
	2539	}
	2540	set _flow(duration) $max
	2541	set _settings($this-duration) [millisecs2str $max]
	2542	$itk_component(dial) configure -max $max
	2543	}
	2544	"off" {
	2545	set _flow(state) 0
	2546	$_dispatcher cancel !play
	2547	$itk_component(play) deselect
	2548	}
	2549	"on" {
	2550	flow speed
	2551	flow duration
	2552	set _flow(state) 1
	2553	set _settings($this-currenttime) 0
	2554	$itk_component(play) select
	2555	}
	2556	"stop" {
	2557	if { $_flow(state) } {
[5101]	2558	flow off
[1694]	2559	flow reset
	2560	}
	2561	}
	2562	"pause" {
	2563	if { $_flow(state) } {
[5101]	2564	flow off
[1694]	2565	}
	2566	}
	2567	"play" {
	2568	# If the flow is currently off, then restart it.
	2569	if { !$_flow(state) } {
	2570	flow on
	2571	# If we're at the end of the flow, reset the flow.
	2572	set _settings($this-currenttime) \
	2573	[expr {$_settings($this-currenttime) + $_flow(delay)}]
	2574	if { $_settings($this-currenttime) >= $_flow(duration) } {
	2575	set _settings($this-step) 1
	2576	SendCmd "flow reset"
[5101]	2577	}
[1694]	2578	flow next
	2579	}
	2580	}
	2581	"toggle" {
	2582	if { $_settings($this-play) } {
	2583	flow play
[5101]	2584	} else {
[1694]	2585	flow pause
	2586	}
	2587	}
	2588	"reset" {
	2589	set _settings($this-currenttime) 0
	2590	SendCmd "flow reset"
	2591	}
	2592	"next" {
[1929]	2593	if { ![winfo viewable $itk_component(3dview)] } {
[1694]	2594	flow stop
	2595	return
	2596	}
	2597	set _settings($this-currenttime) \
	2598	[expr {$_settings($this-currenttime) + $_flow(delay)}]
	2599	if { $_settings($this-currenttime) >= $_flow(duration) } {
	2600	if { !$_settings($this-loop) } {
	2601	flow off
	2602	return
	2603	}
	2604	flow reset
	2605	} else {
	2606	SendCmd "flow next"
	2607	}
	2608	$_dispatcher event -after $_flow(delay) !play
[5101]	2609	}
[1694]	2610	default {
	2611	error "bad option \"$option\": should be play, stop, toggle, or reset."
	2612	}
[1442]	2613	}
	2614	}
	2615
[1355]	2616	itcl::body Rappture::FlowvisViewer::WaitIcon { option widget } {
	2617	switch -- $option {
[1694]	2618	"start" {
	2619	$_dispatcher dispatch $this !waiticon \
	2620	"[itcl::code $this WaitIcon "next" $widget] ; list"
	2621	set _icon 0
	2622	$widget configure -image [Rappture::icon bigroller${_icon}]
	2623	$_dispatcher event -after 100 !waiticon
	2624	}
	2625	"next" {
	2626	incr _icon
	2627	if { $_icon >= 8 } {
	2628	set _icon 0
	2629	}
	2630	$widget configure -image [Rappture::icon bigroller${_icon}]
	2631	$_dispatcher event -after 100 !waiticon
	2632	}
	2633	"stop" {
	2634	$_dispatcher cancel !waiticon
	2635	}
[1355]	2636	}
	2637	}
	2638
[5278]	2639	itcl::body Rappture::FlowvisViewer::GetPngImage { widget width height } {
[1498]	2640	set token "print[incr _nextToken]"
[1506]	2641	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
[1498]	2642	set $var ""
	2643
	2644	# Setup an automatic timeout procedure.
	2645	$_dispatcher dispatch $this !pngtimeout "set $var {} ; list"
	2646
[1506]	2647	set popup .flowvisviewerprint
[1498]	2648	if {![winfo exists $popup]} {
[1694]	2649	Rappture::Balloon $popup -title "Generating file..."
	2650	set inner [$popup component inner]
	2651	label $inner.title -text "Generating hardcopy." -font "Arial 10 bold"
	2652	label $inner.please -text "This may take a minute." -font "Arial 10"
	2653	label $inner.icon -image [Rappture::icon bigroller0]
	2654	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
	2655	-command [list set $var ""]
	2656	blt::table $inner \
[3441]	2657	0,0 $inner.title -cspan 2 \
[1694]	2658	1,0 $inner.please -anchor w \
	2659	1,1 $inner.icon -anchor e \
[5101]	2660	2,0 $inner.cancel -cspan 2
	2661	blt::table configure $inner r0 -pady 4
	2662	blt::table configure $inner r2 -pady 4
[1694]	2663	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
[1498]	2664	} else {
[1694]	2665	set inner [$popup component inner]
[1498]	2666	}
	2667
	2668	$_dispatcher event -after 60000 !pngtimeout
	2669	WaitIcon start $inner.icon
[2606]	2670	grab set $inner
[1498]	2671	focus $inner.cancel
	2672
	2673	SendCmd "print $token $width $height"
	2674
	2675	$popup activate $widget below
[3555]	2676	update idletasks
[1498]	2677	update
[5101]	2678	# We wait here for either
	2679	# 1) the png to be delivered or
	2680	# 2) timeout or
[1498]	2681	# 3) user cancels the operation.
	2682	tkwait variable $var
	2683
	2684	# Clean up.
	2685	$_dispatcher cancel !pngtimeout
	2686	WaitIcon stop $inner.icon
	2687	grab release $inner
	2688	$popup deactivate
	2689	update
	2690
	2691	if { $_hardcopy($this-$token) != "" } {
[1694]	2692	return [list .png $_hardcopy($this-$token)]
[1498]	2693	}
	2694	return ""
	2695	}
	2696
[1514]	2697	itcl::body Rappture::FlowvisViewer::GetMovie { widget w h } {
[1442]	2698	set token "movie[incr _nextToken]"
[1506]	2699	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
[1355]	2700	set $var ""
	2701
	2702	# Setup an automatic timeout procedure.
	2703	$_dispatcher dispatch $this !movietimeout "set $var {} ; list"
[1498]	2704	set popup .flowvisviewermovie
	2705	if {![winfo exists $popup]} {
[1694]	2706	Rappture::Balloon $popup -title "Generating movie..."
	2707	set inner [$popup component inner]
	2708	label $inner.title -text "Generating movie for download" \
	2709	-font "Arial 10 bold"
	2710	label $inner.please -text "This may take a few minutes." \
	2711	-font "Arial 10"
	2712	label $inner.icon -image [Rappture::icon bigroller0]
	2713	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
	2714	-command [list set $var ""]
	2715	blt::table $inner \
[3441]	2716	0,0 $inner.title -cspan 2 \
[1694]	2717	1,0 $inner.please -anchor w \
	2718	1,1 $inner.icon -anchor e \
[5101]	2719	2,0 $inner.cancel -cspan 2
	2720	blt::table configure $inner r0 -pady 4
	2721	blt::table configure $inner r2 -pady 4
[1694]	2722	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
[1498]	2723	} else {
[1694]	2724	set inner [$popup component inner]
[1498]	2725	}
[5101]	2726	update
[1514]	2727	# Timeout is set to 10 minutes.
	2728	$_dispatcher event -after 600000 !movietimeout
[1355]	2729	WaitIcon start $inner.icon
[2606]	2730	grab set $inner
[1355]	2731	focus $inner.cancel
[5101]	2732
[1449]	2733	flow duration
	2734	flow speed
[1506]	2735	set nframes [expr round($_flow(duration) / $_flow(delay))]
[1449]	2736	set framerate [expr 1000.0 / $_flow(delay)]
[1514]	2737
	2738	# These are specific to MPEG1 video generation
[1506]	2739	set framerate 25.0
[1514]	2740	set bitrate 6.0e+6
[1355]	2741
[1506]	2742	set start [clock seconds]
[1514]	2743	SendCmd "flow video $token -width $w -height $h -numframes $nframes "
[5101]	2744
[1355]	2745	$popup activate $widget below
[5101]	2746	update idletasks
[1355]	2747	update
[1514]	2748	# We wait here until
[5101]	2749	# 1. the movie is delivered or
	2750	# 2. we've timed out or
[1514]	2751	# 3. the user has canceled the operation.b
[1355]	2752	tkwait variable $var
	2753
[1514]	2754	puts stderr "Video generated in [expr [clock seconds] - $start] seconds."
	2755
[1355]	2756	# Clean up.
[1506]	2757	$_dispatcher cancel !movietimeout
[1355]	2758	WaitIcon stop $inner.icon
	2759	grab release $inner
	2760	$popup deactivate
	2761	destroy $popup
	2762	update
	2763
[1514]	2764	# This will both cancel the movie generation (if it hasn't already
[5101]	2765	# completed) and reset the flow.
[1514]	2766	SendCmd "flow reset"
[1442]	2767	if { $_hardcopy($this-$token) != "" } {
[1694]	2768	return [list .mpg $_hardcopy($this-$token)]
[1355]	2769	}
	2770	return ""
[1357]	2771	}
[1377]	2772
[1471]	2773	itcl::body Rappture::FlowvisViewer::str2millisecs { value } {
[1473]	2774	set parts [split $value :]
	2775	set secs 0
	2776	set mins 0
	2777	if { [llength $parts] == 1 } {
[1694]	2778	scan [lindex $parts 0] "%d" secs
[1471]	2779	} else {
[1694]	2780	scan [lindex $parts 1] "%d" secs
	2781	scan [lindex $parts 0] "%d" mins
[1471]	2782	}
[1473]	2783	set ms [expr {(($mins * 60) + $secs) * 1000.0}]
	2784	if { $ms > 600000.0 } {
[1694]	2785	set ms 600000.0
[1473]	2786	}
	2787	if { $ms == 0.0 } {
[1694]	2788	set ms 60000.0
[1473]	2789	}
	2790	return $ms
[1471]	2791	}
	2792
	2793	itcl::body Rappture::FlowvisViewer::millisecs2str { value } {
	2794	set min [expr floor($value / 60000.0)]
	2795	set sec [expr ($value - ($min*60000.0)) / 1000.0]
	2796	return [format %02d:%02d [expr round($min)] [expr round($sec)]]
	2797	}
	2798
[5101]	2799	itcl::body Rappture::FlowvisViewer::SetOrientation { side } {
	2800	array set positions {
	2801	front "1 0 0 0"
	2802	back "0 0 1 0"
	2803	left "0.707107 0 -0.707107 0"
	2804	right "0.707107 0 0.707107 0"
	2805	top "0.707107 -0.707107 0 0"
	2806	bottom "0.707107 0.707107 0 0"
	2807	}
	2808	foreach name { -qw -qx -qy -qz } value $positions($side) {
[3533]	2809	set _view($name) $value
[5101]	2810	}
[4766]	2811	set q [ViewToQuaternion]
[3492]	2812	$_arcball quaternion $q
[5101]	2813	SendCmd "camera orient $q"
[3492]	2814	SendCmd "camera reset"
[4766]	2815	set _view(-xpan) 0.0
	2816	set _view(-ypan) 0.0
	2817	set _view(-zoom) 1.0
[5275]	2818	set _settings(-xpan) $_view(-xpan)
	2819	set _settings(-ypan) $_view(-ypan)
	2820	set _settings(-zoom) $_view(-zoom)
[3492]	2821	}
[4547]	2822
	2823	# Reset global settings from dataset's settings.
[5101]	2824	itcl::body Rappture::FlowvisViewer::BuildVolumeComponents {} {
[4547]	2825	$itk_component(volcomponents) choices delete 0 end
	2826	foreach name $_componentsList {
	2827	$itk_component(volcomponents) choices insert end $name $name
	2828	}
	2829	set _current [lindex $_componentsList 0]
	2830	$itk_component(volcomponents) value $_current
	2831	}
	2832
	2833	# Reset global settings from dataset's settings.
[5101]	2834	itcl::body Rappture::FlowvisViewer::GetDatasetsWithComponent { cname } {
[4547]	2835	if { ![info exists _volcomponents($cname)] } {
	2836	return ""
	2837	}
	2838	set list ""
	2839	foreach tag $_volcomponents($cname) {
[5275]	2840	if { ![info exists _serverDatasets($tag)] } {
[4547]	2841	continue
	2842	}
	2843	lappend list $tag
	2844	}
	2845	return $list
	2846	}

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