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source: branches/1.3/gui/scripts/flowvisviewer.tcl @ 5110

Last change on this file since 5110 was 5110, checked in by ldelgass, 9 years ago
merge r5092:r5097 from trunk (includes fix for viewer initial canvas size)
File size: 104.4 KB

Rev	Line
[3330]	1	# -- mode: tcl; indent-tabs-mode: nil --
[1295]	2	# ----------------------------------------------------------------------
[1349]	3	# COMPONENT: flowvisviewer - 3D flow rendering
[1295]	4	#
[1349]	5	#
	6	# This widget performs volume and flow rendering on 3D scalar/vector datasets.
	7	# It connects to the Flowvis server running on a rendering farm, transmits
	8	# data, and displays the results.
	9	#
[1295]	10	# ======================================================================
[1349]	11	# AUTHOR: Michael McLennan, Purdue University
[3177]	12	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
[1295]	13	#
[1349]	14	# See the file "license.terms" for information on usage and redistribution of
	15	# this file, and for a DISCLAIMER OF ALL WARRANTIES.
[1295]	16	# ======================================================================
	17	package require Itk
	18	package require BLT
	19	package require Img
	20
[1448]	21	option add *FlowvisViewer.width 5i widgetDefault
[1349]	22	option add FlowvisViewercursor crosshair widgetDefault
[1295]	23	option add *FlowvisViewer.height 4i widgetDefault
	24	option add *FlowvisViewer.foreground black widgetDefault
[1442]	25	option add *FlowvisViewer.controlBackground gray widgetDefault
	26	option add *FlowvisViewer.controlDarkBackground #999999 widgetDefault
[1295]	27	option add *FlowvisViewer.plotBackground black widgetDefault
	28	option add *FlowvisViewer.plotForeground white widgetDefault
[1349]	29	option add *FlowvisViewer.plotOutline gray widgetDefault
[1295]	30	option add *FlowvisViewer.font \
	31	--helvetica-medium-r-normal--12-* widgetDefault
	32
	33	# must use this name -- plugs into Rappture::resources::load
	34	proc FlowvisViewer_init_resources {} {
	35	Rappture::resources::register \
[1349]	36	nanovis_server Rappture::FlowvisViewer::SetServerList
[1295]	37	}
	38
	39	itcl::class Rappture::FlowvisViewer {
	40	inherit Rappture::VisViewer
	41
	42	itk_option define -plotforeground plotForeground Foreground ""
	43	itk_option define -plotbackground plotBackground Background ""
	44	itk_option define -plotoutline plotOutline PlotOutline ""
	45
	46	constructor { hostlist args } {
[1349]	47	Rappture::VisViewer::constructor $hostlist
[1295]	48	} {
[1349]	49	# defined below
[1295]	50	}
	51	destructor {
[1349]	52	# defined below
[1295]	53	}
	54	public proc SetServerList { namelist } {
[1349]	55	Rappture::VisViewer::SetServerList "nanovis" $namelist
[1295]	56	}
	57	public method add {dataobj {settings ""}}
[1442]	58	public method camera {option args}
[1295]	59	public method delete {args}
[1491]	60	public method disconnect {}
[1295]	61	public method download {option args}
[1442]	62	public method flow {option}
	63	public method get {args}
[1295]	64	public method isconnected {}
[4848]	65	public method limits { tf }
	66	public method overmarker { m x }
[1442]	67	public method parameters {title args} {
[1694]	68	# do nothing
[1442]	69	}
[4848]	70	public method rmdupmarker { m x }
[1442]	71	public method scale {args}
[4848]	72	public method updatetransferfuncs {}
[1349]	73
[4848]	74	protected method Connect {}
	75	protected method CurrentVolumeIds {{what -all}}
	76	protected method Disconnect {}
	77	protected method Resize {}
	78	protected method ResizeLegend {}
	79	protected method AdjustSetting {what {value ""}}
	80	protected method InitSettings { args }
	81	protected method Pan {option x y}
	82	protected method Rebuild {}
	83	protected method ReceiveData { args }
	84	protected method ReceiveImage { args }
	85	protected method ReceiveLegend { tf vmin vmax size }
	86	protected method Rotate {option x y}
	87	protected method SendDataObjs {}
	88	protected method SendTransferFuncs {}
	89	protected method Slice {option args}
	90	protected method SlicerTip {axis}
	91	protected method Zoom {option}
	92
[1442]	93	# soon to be removed.
[4848]	94	protected method Flow {option args}
	95	protected method Play {}
	96	protected method Pause {}
[1295]	97
[4848]	98
[1349]	99	# The following methods are only used by this class.
[4848]	100
[1349]	101	private method AddIsoMarker { x y }
[1442]	102	private method BuildCameraTab {}
[1373]	103	private method BuildCutplanesTab {}
	104	private method BuildViewTab {}
	105	private method BuildVolumeTab {}
[1442]	106	private method ComputeTransferFunc { tf }
	107	private method EventuallyResize { w h }
[1471]	108	private method EventuallyGoto { nSteps }
[1442]	109	private method EventuallyResizeLegend { }
	110	private method FlowCmd { dataobj comp nbytes extents }
	111	private method GetMovie { widget width height }
[1506]	112	private method GetPngImage { widget width height }
[1442]	113	private method NameTransferFunc { dataobj comp }
[1349]	114	private method PanCamera {}
[1442]	115	private method ParseLevelsOption { tf levels }
	116	private method ParseMarkersOption { tf markers }
[1355]	117	private method WaitIcon { option widget }
[4848]	118	private method str2millisecs { value }
[1471]	119	private method millisecs2str { value }
[4848]	120	private method GetFlowInfo { widget }
[1442]	121	private method particles { tag name }
[4848]	122	private method box { tag name }
[1442]	123	private method streams { tag name }
[4848]	124	private method arrows { tag name }
	125	private method SetOrientation { side }
[1295]	126
[3362]	127	private variable _arcball ""
[1442]	128	private variable _dlist "" ;# list of data objects
	129	private variable _allDataObjs
	130	private variable _obj2ovride ;# maps dataobj => style override
[1479]	131	private variable _serverObjs ;# maps dataobj-component to volume ID
[1694]	132	# in the server
[4848]	133	private variable _sendobjs "" ;# list of data objs to send to server
[1448]	134	private variable _recvObjs ;# list of data objs to send to server
[1442]	135	private variable _obj2style ;# maps dataobj-component to transfunc
	136	private variable _style2objs ;# maps tf back to list of
[1694]	137	# dataobj-components using the tf.
[2744]	138	private variable _obj2flow; # Maps dataobj-component to a flow.
[1442]	139
[3396]	140	private variable _reset 1; # Connection to server has been reset
[1442]	141	private variable _click ;# info used for rotate operations
	142	private variable _limits ;# autoscale min/max for all axes
	143	private variable _view ;# view params for 3D view
	144	private variable _isomarkers ;# array of isosurface level values 0..1
	145	private common _settings
	146	private variable _activeTf "" ;# The currently active transfer function.
	147	private variable _first "" ;# This is the topmost volume.
[1506]	148	private variable _nextToken 0
	149	private variable _icon 0
[1442]	150	private variable _flow
[1349]	151	# This
	152	# indicates which isomarkers and transfer
	153	# function to use when changing markers,
	154	# opacity, or thickness.
[1506]	155	private common _downloadPopup ;# download options from popup
[1295]	156
[1442]	157	private common _hardcopy
	158	private variable _width 0
	159	private variable _height 0
[1448]	160	private variable _resizePending 0
	161	private variable _resizeLegendPending 0
[1471]	162	private variable _gotoPending 0
[1295]	163	}
	164
	165	itk::usual FlowvisViewer {
	166	keep -background -foreground -cursor -font
	167	keep -plotbackground -plotforeground
	168	}
	169
	170	# ----------------------------------------------------------------------
	171	# CONSTRUCTOR
	172	# ----------------------------------------------------------------------
[1349]	173	itcl::body Rappture::FlowvisViewer::constructor { hostlist args } {
[2671]	174	set _serverType "nanovis"
[1349]	175
	176	# Draw legend event
	177	$_dispatcher register !legend
[1448]	178	$_dispatcher dispatch $this !legend "[itcl::code $this ResizeLegend]; list"
[1442]	179
[4848]	180	# Send dataobjs event
	181	$_dispatcher register !send_dataobjs
	182	$_dispatcher dispatch $this !send_dataobjs \
	183	"[itcl::code $this SendDataObjs]; list"
	184
[1442]	185	# Send transferfunctions event
[1349]	186	$_dispatcher register !send_transfunc
	187	$_dispatcher dispatch $this !send_transfunc \
[1377]	188	"[itcl::code $this SendTransferFuncs]; list"
[1442]	189
	190	# Rebuild event.
[1295]	191	$_dispatcher register !rebuild
[1349]	192	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
[1295]	193
[1442]	194	# Resize event.
[1377]	195	$_dispatcher register !resize
[1491]	196	$_dispatcher dispatch $this !resize "[itcl::code $this Resize]; list"
[1377]	197
[1349]	198	$_dispatcher register !play
	199	$_dispatcher dispatch $this !play "[itcl::code $this flow next]; list"
	200
[1471]	201	# Draw legend event
	202	$_dispatcher register !goto
	203	$_dispatcher dispatch $this !goto "[itcl::code $this flow goto2]; list"
	204
[1506]	205	$_dispatcher register !movietimeout
	206	$_dispatcher register !waiticon
	207
[1442]	208	set _flow(state) 0
	209
	210	array set _downloadPopup {
[1355]	211	format draft
[1295]	212	}
	213	#
	214	# Populate parser with commands handle incoming requests
	215	#
	216	$_parser alias image [itcl::code $this ReceiveImage]
[1349]	217	$_parser alias legend [itcl::code $this ReceiveLegend]
	218	$_parser alias data [itcl::code $this ReceiveData]
[1295]	219
	220	# Initialize the view to some default parameters.
[1442]	221	array set _view {
[4848]	222	qw 0.853553
	223	qx -0.353553
	224	qy 0.353553
	225	qz 0.146447
	226	zoom 1.0
	227	xpan 0
	228	ypan 0
[1295]	229	}
[3362]	230	set _arcball [blt::arcball create 100 100]
[4848]	231	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
	232	$_arcball quaternion $q
[3362]	233
[4848]	234	set _limits(vmin) 0.0
	235	set _limits(vmax) 1.0
[3396]	236	set _reset 1
[1295]	237
[1442]	238	array set _settings [subst {
[4848]	239	$this-qw $_view(qw)
	240	$this-qx $_view(qx)
	241	$this-qy $_view(qy)
	242	$this-qz $_view(qz)
	243	$this-zoom $_view(zoom)
	244	$this-xpan $_view(xpan)
	245	$this-ypan $_view(ypan)
[2744]	246	$this-arrows 0
	247	$this-currenttime 0
	248	$this-duration 1:00
	249	$this-loop 0
	250	$this-play 0
	251	$this-speed 500
	252	$this-step 0
	253	$this-streams 0
	254	$this-volume 1
	255	$this-xcutplane 0
	256	$this-xcutposition 0
	257	$this-ycutplane 0
	258	$this-ycutposition 0
	259	$this-zcutplane 0
	260	$this-zcutposition 0
[1442]	261	}]
	262
[1545]	263	itk_component add 3dview {
[2584]	264	label $itk_component(plotarea).view -image $_image(plot) \
[1694]	265	-highlightthickness 0 -borderwidth 0
[1545]	266	} {
[1694]	267	usual
	268	ignore -highlightthickness -borderwidth -background
[1545]	269	}
[3477]	270	bind $itk_component(3dview) <Control-F1> [itcl::code $this ToggleConsole]
	271
[1375]	272	set f [$itk_component(main) component controls]
[1295]	273	itk_component add reset {
[1375]	274	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
[1391]	275	-highlightthickness 0 \
[1349]	276	-image [Rappture::icon reset-view] \
	277	-command [itcl::code $this Zoom reset]
[1391]	278	} {
	279	usual
	280	ignore -highlightthickness
[1295]	281	}
[1373]	282	pack $itk_component(reset) -side top -padx 2 -pady 2
[1295]	283	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
	284
	285	itk_component add zoomin {
[1375]	286	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
[1391]	287	-highlightthickness 0 \
[1349]	288	-image [Rappture::icon zoom-in] \
	289	-command [itcl::code $this Zoom in]
[1391]	290	} {
	291	usual
	292	ignore -highlightthickness
[1295]	293	}
[1373]	294	pack $itk_component(zoomin) -side top -padx 2 -pady 2
[1295]	295	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
	296
	297	itk_component add zoomout {
[1375]	298	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
[1391]	299	-highlightthickness 0 \
[1349]	300	-image [Rappture::icon zoom-out] \
	301	-command [itcl::code $this Zoom out]
[1391]	302	} {
	303	usual
	304	ignore -highlightthickness
[1295]	305	}
[1373]	306	pack $itk_component(zoomout) -side top -padx 2 -pady 2
[1295]	307	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
	308
	309	itk_component add volume {
[1442]	310	Rappture::PushButton $f.volume \
[1694]	311	-onimage [Rappture::icon volume-on] \
	312	-offimage [Rappture::icon volume-off] \
[3396]	313	-command [itcl::code $this AdjustSetting volume] \
[1694]	314	-variable [itcl::scope _settings($this-volume)]
[1295]	315	}
[1442]	316	$itk_component(volume) select
[1295]	317	Rappture::Tooltip::for $itk_component(volume) \
[1349]	318	"Toggle the volume cloud on/off"
[1373]	319	pack $itk_component(volume) -padx 2 -pady 2
[1295]	320
[3492]	321	if { [catch {
	322	BuildViewTab
	323	BuildVolumeTab
	324	BuildCutplanesTab
	325	BuildCameraTab
	326	} errs] != 0 } {
	327	global errorInfo
	328	puts stderr "errs=$errs errorInfo=$errorInfo"
	329	}
[1373]	330
[1448]	331	bind $itk_component(3dview) <Configure> \
[1694]	332	[itcl::code $this EventuallyResize %w %h]
[1448]	333
[1349]	334	# Legend
	335	set _image(legend) [image create photo]
	336	itk_component add legend {
[4848]	337	canvas $itk_component(plotarea).legend \
	338	-height 50 -highlightthickness 0 -background black
[1295]	339	} {
[1349]	340	usual
	341	ignore -highlightthickness
	342	rename -background -plotbackground plotBackground Background
[1295]	343	}
[1349]	344	bind $itk_component(legend) <Configure> \
[1694]	345	[itcl::code $this EventuallyResizeLegend]
[1295]	346
[1373]	347	# Hack around the Tk panewindow. The problem is that the requested
	348	# size of the 3d view isn't set until an image is retrieved from
	349	# the server. So the panewindow uses the tiny size.
[1442]	350	set w 10000
	351	pack forget $itk_component(3dview)
[1373]	352	blt::table $itk_component(plotarea) \
[1694]	353	0,0 $itk_component(3dview) -fill both -reqwidth $w \
	354	1,0 $itk_component(legend) -fill x
[1442]	355	blt::table configure $itk_component(plotarea) r1 -resize none
[1349]	356	# Create flow controls...
[1295]	357
[1448]	358	itk_component add flowcontrols {
	359	frame $itk_interior.flowcontrols
[1295]	360	} {
[1694]	361	usual
[1349]	362	rename -background -controlbackground controlBackground Background
[1295]	363	}
[1442]	364	pack forget $itk_component(main)
	365	blt::table $itk_interior \
[1694]	366	0,0 $itk_component(main) -fill both \
	367	1,0 $itk_component(flowcontrols) -fill x
[1442]	368	blt::table configure $itk_interior r1 -resize none
[1295]	369
[1448]	370	# Rewind
[1349]	371	itk_component add rewind {
[1448]	372	button $itk_component(flowcontrols).reset \
[1349]	373	-borderwidth 1 -padx 1 -pady 1 \
	374	-image [Rappture::icon flow-rewind] \
[1694]	375	-command [itcl::code $this flow reset]
[1295]	376	} {
[1349]	377	usual
	378	ignore -borderwidth
[1448]	379	rename -highlightbackground -controlbackground controlBackground \
[1694]	380	Background
[1295]	381	}
[1349]	382	Rappture::Tooltip::for $itk_component(rewind) \
[1442]	383	"Rewind flow"
[1295]	384
[1448]	385	# Stop
[1295]	386	itk_component add stop {
[1448]	387	button $itk_component(flowcontrols).stop \
[1349]	388	-borderwidth 1 -padx 1 -pady 1 \
	389	-image [Rappture::icon flow-stop] \
[1694]	390	-command [itcl::code $this flow stop]
[1295]	391	} {
[1349]	392	usual
	393	ignore -borderwidth
[1448]	394	rename -highlightbackground -controlbackground controlBackground \
[1694]	395	Background
[1295]	396	}
	397	Rappture::Tooltip::for $itk_component(stop) \
[1442]	398	"Stop flow"
[1295]	399
[1448]	400	# Play
[1295]	401	itk_component add play {
[1448]	402	Rappture::PushButton $itk_component(flowcontrols).play \
[1694]	403	-onimage [Rappture::icon flow-pause] \
	404	-offimage [Rappture::icon flow-play] \
	405	-variable [itcl::scope _settings($this-play)] \
	406	-command [itcl::code $this flow toggle]
[1295]	407	}
[1349]	408	set fg [option get $itk_component(hull) font Font]
[1295]	409	Rappture::Tooltip::for $itk_component(play) \
[1442]	410	"Play/Pause flow"
[1295]	411
[1448]	412	# Loop
[1442]	413	itk_component add loop {
[1448]	414	Rappture::PushButton $itk_component(flowcontrols).loop \
[1694]	415	-onimage [Rappture::icon flow-loop] \
	416	-offimage [Rappture::icon flow-loop] \
	417	-variable [itcl::scope _settings($this-loop)]
[1442]	418	}
	419	Rappture::Tooltip::for $itk_component(loop) \
	420	"Play continuously"
	421
[1449]	422	itk_component add dial {
[1471]	423	Rappture::Flowdial $itk_component(flowcontrols).dial \
[1449]	424	-length 10 -valuewidth 0 -valuepadding 0 -padding 6 \
	425	-linecolor "" -activelinecolor "" \
[1694]	426	-min 0.0 -max 1.0 \
	427	-variable [itcl::scope _settings($this-currenttime)] \
[1449]	428	-knobimage [Rappture::icon knob2] -knobposition center@middle
[1442]	429	} {
	430	usual
[1471]	431	ignore -dialprogresscolor
[1442]	432	rename -background -controlbackground controlBackground Background
	433	}
[1471]	434	$itk_component(dial) current 0.0
	435	bind $itk_component(dial) <<Value>> [itcl::code $this flow goto]
[1449]	436	# Duration
	437	itk_component add duration {
[1694]	438	entry $itk_component(flowcontrols).duration \
	439	-textvariable [itcl::scope _settings($this-duration)] \
	440	-bg white -width 6 -font "arial 9"
[1449]	441	} {
	442	usual
[1694]	443	ignore -highlightthickness -background
[1449]	444	}
	445	bind $itk_component(duration) <Return> [itcl::code $this flow duration]
[3454]	446	bind $itk_component(duration) <KP_Enter> [itcl::code $this flow duration]
[1511]	447	bind $itk_component(duration) <Tab> [itcl::code $this flow duration]
[1473]	448	Rappture::Tooltip::for $itk_component(duration) \
	449	"Set duration of flow (format is min:sec)"
[1449]	450
[1473]	451
[1449]	452	itk_component add durationlabel {
[1694]	453	label $itk_component(flowcontrols).durationl \
	454	-text "Duration:" -font $fg \
	455	-highlightthickness 0
[1442]	456	} {
	457	usual
[1694]	458	ignore -highlightthickness
[1442]	459	rename -background -controlbackground controlBackground Background
	460	}
	461
[1349]	462	itk_component add speedlabel {
[1694]	463	label $itk_component(flowcontrols).speedl -text "Speed:" -font $fg \
	464	-highlightthickness 0
[1349]	465	} {
	466	usual
[1694]	467	ignore -highlightthickness
[1349]	468	rename -background -controlbackground controlBackground Background
	469	}
	470
[1448]	471	# Speed
[1442]	472	itk_component add speed {
[1694]	473	Rappture::Flowspeed $itk_component(flowcontrols).speed \
	474	-min 1 -max 10 -width 3 -font "arial 9"
[1442]	475	} {
[1448]	476	usual
[1694]	477	ignore -highlightthickness
[1442]	478	rename -background -controlbackground controlBackground Background
	479	}
[1473]	480	Rappture::Tooltip::for $itk_component(speed) \
	481	"Change speed of flow"
	482
[1448]	483	$itk_component(speed) value 1
	484	bind $itk_component(speed) <<Value>> [itcl::code $this flow speed]
[1349]	485
[1448]	486
	487	blt::table $itk_component(flowcontrols) \
[1694]	488	0,0 $itk_component(rewind) -padx {3 0} \
	489	0,1 $itk_component(stop) -padx {2 0} \
	490	0,2 $itk_component(play) -padx {2 0} \
	491	0,3 $itk_component(loop) -padx {2 0} \
	492	0,4 $itk_component(dial) -fill x -padx {2 0 } \
	493	0,5 $itk_component(duration) -padx { 0 0} \
	494	0,7 $itk_component(speed) -padx {2 3}
[1448]	495
[1694]	496	# 0,6 $itk_component(speedlabel) -padx {2 0}
[1448]	497	blt::table configure $itk_component(flowcontrols) c* -resize none
	498	blt::table configure $itk_component(flowcontrols) c4 -resize both
	499	blt::table configure $itk_component(flowcontrols) r0 -pady 1
[1295]	500	# Bindings for rotation via mouse
	501	bind $itk_component(3dview) <ButtonPress-1> \
[1349]	502	[itcl::code $this Rotate click %x %y]
[1295]	503	bind $itk_component(3dview) <B1-Motion> \
[1349]	504	[itcl::code $this Rotate drag %x %y]
[1295]	505	bind $itk_component(3dview) <ButtonRelease-1> \
[1349]	506	[itcl::code $this Rotate release %x %y]
[1448]	507
[1295]	508	bind $itk_component(3dview) <Configure> \
[1694]	509	[itcl::code $this EventuallyResize %w %h]
[1295]	510
	511	# Bindings for panning via mouse
	512	bind $itk_component(3dview) <ButtonPress-2> \
[1349]	513	[itcl::code $this Pan click %x %y]
[1295]	514	bind $itk_component(3dview) <B2-Motion> \
[1349]	515	[itcl::code $this Pan drag %x %y]
[1295]	516	bind $itk_component(3dview) <ButtonRelease-2> \
[1349]	517	[itcl::code $this Pan release %x %y]
[1295]	518
	519	# Bindings for panning via keyboard
	520	bind $itk_component(3dview) <KeyPress-Left> \
[1349]	521	[itcl::code $this Pan set -10 0]
[1295]	522	bind $itk_component(3dview) <KeyPress-Right> \
[1349]	523	[itcl::code $this Pan set 10 0]
[1295]	524	bind $itk_component(3dview) <KeyPress-Up> \
[1349]	525	[itcl::code $this Pan set 0 -10]
[1295]	526	bind $itk_component(3dview) <KeyPress-Down> \
[1349]	527	[itcl::code $this Pan set 0 10]
[1295]	528	bind $itk_component(3dview) <Shift-KeyPress-Left> \
[1349]	529	[itcl::code $this Pan set -2 0]
[1295]	530	bind $itk_component(3dview) <Shift-KeyPress-Right> \
[1349]	531	[itcl::code $this Pan set 2 0]
[1295]	532	bind $itk_component(3dview) <Shift-KeyPress-Up> \
[1349]	533	[itcl::code $this Pan set 0 -2]
[1295]	534	bind $itk_component(3dview) <Shift-KeyPress-Down> \
[1349]	535	[itcl::code $this Pan set 0 2]
[1295]	536
	537	# Bindings for zoom via keyboard
	538	bind $itk_component(3dview) <KeyPress-Prior> \
[1349]	539	[itcl::code $this Zoom out]
[1295]	540	bind $itk_component(3dview) <KeyPress-Next> \
[1349]	541	[itcl::code $this Zoom in]
[1295]	542
	543	bind $itk_component(3dview) <Enter> "focus $itk_component(3dview)"
	544
	545	if {[string equal "x11" [tk windowingsystem]]} {
[1349]	546	# Bindings for zoom via mouse
	547	bind $itk_component(3dview) <4> [itcl::code $this Zoom out]
	548	bind $itk_component(3dview) <5> [itcl::code $this Zoom in]
[1295]	549	}
	550
	551	set _image(download) [image create photo]
	552
	553	eval itk_initialize $args
	554
[5110]	555	EnableWaitDialog 900
[1295]	556	Connect
	557	}
	558
	559	# ----------------------------------------------------------------------
	560	# DESTRUCTOR
	561	# ----------------------------------------------------------------------
	562	itcl::body Rappture::FlowvisViewer::destructor {} {
[4848]	563	set _sendobjs "" ;# stop any send in progress
[1295]	564	$_dispatcher cancel !rebuild
[4848]	565	$_dispatcher cancel !send_dataobjs
[1349]	566	$_dispatcher cancel !send_transfunc
[1295]	567	image delete $_image(plot)
[1349]	568	image delete $_image(legend)
[1295]	569	image delete $_image(download)
[3362]	570	catch { blt::arcball destroy $_arcball }
[1442]	571	array unset _settings $this-*
[1295]	572	}
	573
	574	# ----------------------------------------------------------------------
	575	# USAGE: add <dataobj> ?<settings>?
	576	#
	577	# Clients use this to add a data object to the plot. The optional
	578	# <settings> are used to configure the plot. Allowed settings are
	579	# -color, -brightness, -width, -linestyle, and -raise.
	580	# ----------------------------------------------------------------------
	581	itcl::body Rappture::FlowvisViewer::add {dataobj {settings ""}} {
	582	array set params {
[1349]	583	-color auto
	584	-width 1
	585	-linestyle solid
	586	-brightness 0
	587	-raise 0
	588	-description ""
	589	-param ""
[1295]	590	}
[3800]	591	array set params $settings
[1295]	592	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
[1349]	593	# can't handle -autocolors yet
	594	set params(-color) black
[1295]	595	}
[1442]	596	foreach comp [$dataobj components] {
[1694]	597	set flowobj [$dataobj flowhints $comp]
	598	if { $flowobj == "" } {
	599	puts stderr "no flowhints $dataobj-$comp"
	600	continue
	601	}
	602	set _obj2flow($dataobj-$comp) $flowobj
[1442]	603	}
[3844]	604	set pos [lsearch -exact $_dlist $dataobj]
[1295]	605	if {$pos < 0} {
[1442]	606	lappend _dlist $dataobj
	607	set _allDataObjs($dataobj) 1
	608	set _obj2ovride($dataobj-color) $params(-color)
	609	set _obj2ovride($dataobj-width) $params(-width)
	610	set _obj2ovride($dataobj-raise) $params(-raise)
[1349]	611	$_dispatcher event -idle !rebuild
[1295]	612	}
	613	}
	614
	615	# ----------------------------------------------------------------------
	616	# USAGE: get ?-objects?
	617	# USAGE: get ?-image 3dview\|legend?
	618	#
	619	# Clients use this to query the list of objects being plotted, in
	620	# order from bottom to top of this result. The optional "-image"
	621	# flag can also request the internal images being shown.
	622	# ----------------------------------------------------------------------
	623	itcl::body Rappture::FlowvisViewer::get {args} {
	624	if {[llength $args] == 0} {
[1349]	625	set args "-objects"
[1295]	626	}
	627
	628	set op [lindex $args 0]
	629	switch -- $op {
	630	-objects {
[1349]	631	# put the dataobj list in order according to -raise options
[1442]	632	set dlist $_dlist
[1349]	633	foreach obj $dlist {
[1442]	634	if {[info exists _obj2ovride($obj-raise)] && $_obj2ovride($obj-raise)} {
[1349]	635	set i [lsearch -exact $dlist $obj]
	636	if {$i >= 0} {
	637	set dlist [lreplace $dlist $i $i]
	638	lappend dlist $obj
	639	}
	640	}
	641	}
	642	return $dlist
[1295]	643	}
	644	-image {
[1349]	645	if {[llength $args] != 2} {
	646	error "wrong # args: should be \"get -image 3dview\|legend\""
	647	}
	648	switch -- [lindex $args end] {
	649	3dview {
	650	return $_image(plot)
	651	}
	652	legend {
	653	return $_image(legend)
	654	}
	655	default {
	656	error "bad image name \"[lindex $args end]\": should be 3dview or legend"
	657	}
	658	}
[1295]	659	}
	660	default {
[1349]	661	error "bad option \"$op\": should be -objects or -image"
[1295]	662	}
	663	}
	664	}
	665
	666	# ----------------------------------------------------------------------
	667	# USAGE: delete ?<dataobj1> <dataobj2> ...?
	668	#
[1349]	669	# Clients use this to delete a dataobj from the plot. If no dataobjs
	670	# are specified, then all dataobjs are deleted. No data objects are
	671	# deleted. They are only removed from the display list.
	672	#
[1295]	673	# ----------------------------------------------------------------------
	674	itcl::body Rappture::FlowvisViewer::delete {args} {
[4848]	675	flow stop
[1295]	676	if {[llength $args] == 0} {
[1442]	677	set args $_dlist
[1295]	678	}
[1442]	679
[1349]	680	# Delete all specified dataobjs
[1295]	681	set changed 0
	682	foreach dataobj $args {
[1442]	683	set pos [lsearch -exact $_dlist $dataobj]
[1349]	684	if { $pos >= 0 } {
[1694]	685	foreach comp [$dataobj components] {
	686	array unset _limits $dataobj-$comp-*
	687	}
	688	set _dlist [lreplace $_dlist $pos $pos]
	689	array unset _obj2ovride $dataobj-*
	690	array unset _obj2flow $dataobj-*
	691	array unset _serverObjs $dataobj-*
	692	array unset _obj2style $dataobj-*
[1349]	693	set changed 1
	694	}
[1295]	695	}
[1349]	696	# If anything changed, then rebuild the plot
[1295]	697	if {$changed} {
[1694]	698	# Repair the reverse lookup
	699	foreach tf [array names _style2objs] {
	700	set list {}
	701	foreach {dataobj comp} $_style2objs($tf) break
	702	if { [info exists _serverObjs($dataobj-$comp)] } {
	703	lappend list $dataobj $comp
	704	}
	705	if { $list == "" } {
	706	array unset _style2objs $tf
	707	} else {
	708	set _style2objs($tf) $list
	709	}
	710	}
[1349]	711	$_dispatcher event -idle !rebuild
[1295]	712	}
	713	}
	714
	715	# ----------------------------------------------------------------------
	716	# USAGE: scale ?<data1> <data2> ...?
	717	#
	718	# Sets the default limits for the overall plot according to the
	719	# limits of the data for all of the given <data> objects. This
	720	# accounts for all objects--even those not showing on the screen.
	721	# Because of this, the limits are appropriate for all objects as
	722	# the user scans through data in the ResultSet viewer.
	723	# ----------------------------------------------------------------------
	724	itcl::body Rappture::FlowvisViewer::scale {args} {
[4848]	725	foreach val {xmin xmax ymin ymax vmin vmax} {
	726	set _limits($val) ""
[1295]	727	}
[4848]	728	foreach obj $args {
	729	foreach axis {x y v} {
	730
	731	foreach { min max } [$obj limits $axis] break
	732
[1349]	733	if {"" != $min && "" != $max} {
[4848]	734	if {"" == $_limits(${axis}min)} {
	735	set _limits(${axis}min) $min
	736	set _limits(${axis}max) $max
[1349]	737	} else {
[4848]	738	if {$min < $_limits(${axis}min)} {
	739	set _limits(${axis}min) $min
[1349]	740	}
[4848]	741	if {$max > $_limits(${axis}max)} {
	742	set _limits(${axis}max) $max
[1349]	743	}
	744	}
	745	}
	746	}
[1295]	747	}
	748	}
	749
	750	# ----------------------------------------------------------------------
	751	# USAGE: download coming
	752	# USAGE: download controls <downloadCommand>
	753	# USAGE: download now
	754	#
	755	# Clients use this method to create a downloadable representation
	756	# of the plot. Returns a list of the form {ext string}, where
	757	# "ext" is the file extension (indicating the type of data) and
	758	# "string" is the data itself.
	759	# ----------------------------------------------------------------------
	760	itcl::body Rappture::FlowvisViewer::download {option args} {
[1506]	761	set popup .flowvisviewerdownload
[1295]	762	switch $option {
[1349]	763	coming {
[1442]	764	if {[catch {
[1694]	765	blt::winop snap $itk_component(plotarea) $_image(download)
	766	}]} {
[1349]	767	$_image(download) configure -width 1 -height 1
	768	$_image(download) put #000000
	769	}
	770	}
	771	controls {
[1694]	772	if {![winfo exists $popup]} {
	773	# if we haven't created the popup yet, do it now
	774	Rappture::Balloon $popup \
	775	-title "[Rappture::filexfer::label downloadWord] as..."
	776	set inner [$popup component inner]
	777	label $inner.summary -text "" -anchor w
	778	pack $inner.summary -side top
	779	set img $_image(plot)
	780	set res "[image width $img]x[image height $img]"
	781	radiobutton $inner.draft -text "Image (draft $res)" \
	782	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
	783	-value draft
	784	pack $inner.draft -anchor w
[1355]	785
[1694]	786	set res "640x480"
	787	radiobutton $inner.medium -text "Movie (standard $res)" \
	788	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
	789	-value $res
	790	pack $inner.medium -anchor w
[1355]	791
[1694]	792	set res "1024x768"
	793	radiobutton $inner.high -text "Movie (high quality $res)" \
	794	-variable Rappture::FlowvisViewer::_downloadPopup(format) \
	795	-value $res
	796	pack $inner.high -anchor w
	797	button $inner.go -text [Rappture::filexfer::label download] \
	798	-command [lindex $args 0]
	799	pack $inner.go -pady 4
	800	$inner.draft select
	801	} else {
	802	set inner [$popup component inner]
	803	}
	804	set num [llength [get]]
	805	set num [expr {($num == 1) ? "1 result" : "$num results"}]
	806	set word [Rappture::filexfer::label downloadWord]
	807	$inner.summary configure -text "$word $num in the following format:"
	808	update idletasks ;# fix initial sizes
[3555]	809	update
[1694]	810	return $popup
	811	}
[1349]	812	now {
[1694]	813	if { [winfo exists $popup] } {
	814	$popup deactivate
	815	}
	816	switch -- $_downloadPopup(format) {
	817	draft {
	818	# Get the image data (as base64) and decode it back to
	819	# binary. This is better than writing to temporary
	820	# files. When we switch to the BLT picture image it
	821	# won't be necessary to decode the image data.
	822	set bytes [$_image(plot) data -format "jpeg -quality 100"]
	823	set bytes [Rappture::encoding::decode -as b64 $bytes]
	824	return [list .jpg $bytes]
	825	}
	826	"640x480" {
	827	return [$this GetMovie [lindex $args 0] 640 480]
	828	}
	829	"1024x768" {
	830	return [$this GetMovie [lindex $args 0] 1024 768]
	831	}
	832	default {
	833	error "bad download format $_downloadPopup(format)"
	834	}
	835	}
	836	}
[1349]	837	default {
	838	error "bad option \"$option\": should be coming, controls, now"
	839	}
[1295]	840	}
	841	}
	842
	843	# ----------------------------------------------------------------------
	844	# USAGE: Connect ?<host:port>,<host:port>...?
	845	#
	846	# Clients use this method to establish a connection to a new
	847	# server, or to reestablish a connection to the previous server.
	848	# Any existing connection is automatically closed.
	849	# ----------------------------------------------------------------------
	850	itcl::body Rappture::FlowvisViewer::Connect {} {
	851	set _hosts [GetServerList "nanovis"]
	852	if { "" == $_hosts } {
[1349]	853	return 0
[1295]	854	}
[3396]	855	set _reset 1
[1295]	856	set result [VisViewer::Connect $_hosts]
[1349]	857	if { $result } {
[3592]	858	if { $_reportClientInfo } {
	859	# Tell the server the viewer, hub, user and session.
[4848]	860	# Do this immediately on connect before buffing any commands
[3592]	861	global env
	862
	863	set info {}
	864	set user "???"
	865	if { [info exists env(USER)] } {
	866	set user $env(USER)
	867	}
	868	set session "???"
	869	if { [info exists env(SESSION)] } {
	870	set session $env(SESSION)
	871	}
[4670]	872	lappend info "version" "$Rappture::version"
	873	lappend info "build" "$Rappture::build"
	874	lappend info "svnurl" "$Rappture::svnurl"
	875	lappend info "installdir" "$Rappture::installdir"
[3592]	876	lappend info "hub" [exec hostname]
	877	lappend info "client" "flowvisviewer"
	878	lappend info "user" $user
	879	lappend info "session" $session
	880	SendCmd "clientinfo [list $info]"
	881	}
	882
[1349]	883	set w [winfo width $itk_component(3dview)]
	884	set h [winfo height $itk_component(3dview)]
[1442]	885	EventuallyResize $w $h
[1349]	886	}
[1295]	887	return $result
	888	}
	889
	890	#
	891	# isconnected --
	892	#
	893	# Indicates if we are currently connected to the visualization server.
	894	#
	895	itcl::body Rappture::FlowvisViewer::isconnected {} {
	896	return [VisViewer::IsConnected]
	897	}
	898
	899	#
[1491]	900	# disconnect --
	901	#
	902	itcl::body Rappture::FlowvisViewer::disconnect {} {
	903	Disconnect
	904	}
	905
	906	#
[1349]	907	# Disconnect --
	908	#
	909	# Clients use this method to disconnect from the current rendering
	910	# server.
	911	#
[1295]	912	itcl::body Rappture::FlowvisViewer::Disconnect {} {
	913	VisViewer::Disconnect
	914
[1349]	915	# disconnected -- no more data sitting on server
[1479]	916	array unset _serverObjs
[4848]	917	set _sendobjs ""
[1295]	918	}
	919
	920	# ----------------------------------------------------------------------
[4848]	921	# USAGE: SendDataObjs
	922	#
	923	# Used internally to send a series of volume objects off to the
	924	# server. Sends each object, a little at a time, with updates in
	925	# between so the interface doesn't lock up.
	926	# ----------------------------------------------------------------------
	927	itcl::body Rappture::FlowvisViewer::SendDataObjs {} {
	928	blt::busy hold $itk_component(hull)
	929	foreach dataobj $_sendobjs {
	930	foreach comp [$dataobj components] {
	931	# Send the data as one huge base64-encoded mess -- yuck!
	932	set data [$dataobj blob $comp]
	933	set nbytes [string length $data]
	934	set extents [$dataobj extents $comp]
	935
	936	# I have a field. Is a vector field or a volume field?
	937	if { $extents == 1 } {
	938	set cmd "volume data follows $nbytes $dataobj-$comp\n"
	939	} else {
	940	set cmd [FlowCmd $dataobj $comp $nbytes $extents]
	941	if { $cmd == "" } {
	942	puts stderr "no command"
	943	continue
	944	}
	945	}
	946	f { ![SendBytes $cmd] } {
	947	puts stderr "can't send"
	948	return
	949	}
	950	if { ![SendBytes $data] } {
	951	puts stderr "can't send"
	952	return
	953	}
	954	NameTransferFunc $dataobj $comp
	955	set _recvObjs($dataobj-$comp) 1
	956	}
	957	}
	958	set _sendobjs ""
	959	blt::busy release $itk_component(hull)
	960
	961	# Turn on buffering of commands to the server. We don't want to
	962	# be preempted by a server disconnect/reconnect (which automatically
	963	# generates a new call to Rebuild).
	964	StartBufferingCommands
	965
	966	# activate the proper volume
	967	set _first [lindex [get] 0]
	968	if { "" != $_first } {
	969	set axis [$_first hints updir]
	970	if {"" != $axis} {
	971	SendCmd "up $axis"
	972	}
	973
	974	if 0 {
	975	set location [$_first hints camera]
	976	if { $location != "" } {
	977	array set _view $location
	978	}
	979	set _settings($this-qw) $_view(qw)
	980	set _settings($this-qx) $_view(qx)
	981	set _settings($this-qy) $_view(qy)
	982	set _settings($this-qz) $_view(qz)
	983	set _settings($this-xpan) $_view(xpan)
	984	set _settings($this-ypan) $_view(ypan)
	985	set _settings($this-zoom) $_view(zoom)
	986	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
	987	$_arcball quaternion $q
	988	SendCmd "camera orient $q"
	989	SendCmd "camera reset"
	990	PanCamera
	991	SendCmd "camera zoom $_view(zoom)"
	992	}
	993	# The active transfer function is by default the first component of
	994	# the first data object. This assumes that the data is always
	995	# successfully transferred.
	996	set comp [lindex [$_first components] 0]
	997	set _activeTf [lindex $_obj2style($_first-$comp) 0]
	998	}
	999
	1000	SendCmd "flow reset"
	1001	StopBufferingCommands
	1002	}
	1003
	1004	# ----------------------------------------------------------------------
[1377]	1005	# USAGE: SendTransferFuncs
[1349]	1006	# ----------------------------------------------------------------------
[1377]	1007	itcl::body Rappture::FlowvisViewer::SendTransferFuncs {} {
[1442]	1008	if { $_activeTf == "" } {
[1694]	1009	puts stderr "no active tf"
	1010	return
[1349]	1011	}
[1442]	1012	set tf $_activeTf
	1013	if { $_first == "" } {
[1694]	1014	puts stderr "no first"
	1015	return
[1442]	1016	}
[1349]	1017
[4848]	1018	# Ensure that the global opacity and thickness settings (in the slider
	1019	# settings widgets) are used for the active transfer-function. Update the
	1020	# values in the _settings varible.
	1021	set value $_settings($this-opacity)
	1022	set opacity [expr { double($value) * 0.01 }]
	1023	set _settings($this-$tf-opacity) $opacity
[1442]	1024	set value $_settings($this-thickness)
[1349]	1025	# Scale values between 0.00001 and 0.01000
	1026	set thickness [expr {double($value) * 0.0001}]
[1442]	1027	set _settings($this-$tf-thickness) $thickness
[1349]	1028
[1442]	1029	foreach key [array names _obj2style $_first-*] {
[1694]	1030	if { [info exists _obj2style($key)] } {
	1031	foreach tf $_obj2style($key) {
	1032	ComputeTransferFunc $tf
	1033	}
	1034	}
[1349]	1035	}
[1479]	1036	EventuallyResizeLegend
[1349]	1037	}
	1038
	1039	# ----------------------------------------------------------------------
[1442]	1040	# USAGE: ReceiveImage -bytes $size -type $type -token $token
[1295]	1041	#
	1042	# Invoked automatically whenever the "image" command comes in from
	1043	# the rendering server. Indicates that binary image data with the
	1044	# specified <size> will follow.
	1045	# ----------------------------------------------------------------------
[1349]	1046	itcl::body Rappture::FlowvisViewer::ReceiveImage { args } {
	1047	array set info {
[1694]	1048	-token "???"
	1049	-bytes 0
	1050	-type image
[1349]	1051	}
	1052	array set info $args
	1053	set bytes [ReceiveBytes $info(-bytes)]
	1054	ReceiveEcho <<line "<read $info(-bytes) bytes"
[1506]	1055	switch -- $info(-type) {
[1694]	1056	"image" {
	1057	$_image(plot) configure -data $bytes
	1058	#puts stderr "image received [image width $_image(plot)] by [image height $_image(plot)]"
	1059	}
	1060	"print" {
	1061	set tag $this-$info(-token)
	1062	set _hardcopy($tag) $bytes
	1063	}
	1064	"movie" {
	1065	set tag $this-$info(-token)
	1066	set _hardcopy($tag) $bytes
	1067	}
	1068	default {
	1069	puts stderr "unknown download type $info(-type)"
	1070	}
[1295]	1071	}
	1072	}
	1073
	1074	#
[1349]	1075	# ReceiveLegend --
	1076	#
	1077	# The procedure is the response from the render server to each "legend"
	1078	# command. The server sends back a "legend" command invoked our
	1079	# the slave interpreter. The purpose is to collect data of the image
	1080	# representing the legend in the canvas. In addition, the isomarkers
	1081	# of the active transfer function are displayed.
	1082	#
	1083	# I don't know is this is the right place to display the isomarkers.
	1084	# I don't know all the different paths used to draw the plot. There's
	1085	# "Rebuild", "add", etc.
	1086	#
[1479]	1087	itcl::body Rappture::FlowvisViewer::ReceiveLegend { tag vmin vmax size } {
[1349]	1088	if { ![isconnected] } {
	1089	return
	1090	}
[1491]	1091	#puts stderr "receive legend $tag $vmin $vmax $size"
[1349]	1092	set bytes [ReceiveBytes $size]
	1093	$_image(legend) configure -data $bytes
	1094	ReceiveEcho <<line "<read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
[1295]	1095
[1349]	1096	set c $itk_component(legend)
	1097	set w [winfo width $c]
	1098	set h [winfo height $c]
	1099	set lx 10
[4848]	1100	# FIXME: I don't know what I have to do this for the 2D flow
	1101	# example. Otherwise the canvas background is white.
	1102	# I'll get to this when we add background changes into
	1103	# nanvis.
	1104	$c configure -background black
[1349]	1105	set ly [expr {$h - 1}]
[4848]	1106	if {"" == [$c find withtag transfunc]} {
[1349]	1107	$c create image 10 10 -anchor nw \
[4848]	1108	-image $_image(legend) -tags transfunc
[1349]	1109	$c create text $lx $ly -anchor sw \
	1110	-fill $itk_option(-plotforeground) -tags "limits vmin"
	1111	$c create text [expr {$w-$lx}] $ly -anchor se \
	1112	-fill $itk_option(-plotforeground) -tags "limits vmax"
[4848]	1113	$c lower transfunc
	1114	$c bind transfunc <ButtonRelease-1> \
	1115	[itcl::code $this AddIsoMarker %x %y]
[1349]	1116	}
	1117	# Display the markers used by the active transfer function.
[1479]	1118	set tf $_obj2style($tag)
[4848]	1119	array set limits [limits $tf]
	1120	$c itemconfigure vmin -text [format %.2g $limits(vmin)]
[1349]	1121	$c coords vmin $lx $ly
	1122
[4848]	1123	$c itemconfigure vmax -text [format %.2g $limits(vmax)]
[1349]	1124	$c coords vmax [expr {$w-$lx}] $ly
	1125
[1442]	1126	if { [info exists _isomarkers($tf)] } {
	1127	foreach m $_isomarkers($tf) {
	1128	$m visible yes
[1349]	1129	}
[1295]	1130	}
	1131	}
	1132
	1133	#
[1349]	1134	# ReceiveData --
	1135	#
[2744]	1136	# The procedure is the response from the render server to each "data
	1137	# follows" command. The server sends back a "data" command invoked our
	1138	# the slave interpreter. The purpose is to collect the min/max of the
	1139	# volume sent to the render server. Since the client (flowvisviewer)
	1140	# doesn't parse 3D data formats, we rely on the server (flowvis) to
	1141	# tell us what the limits are. Once we've received the limits to all
	1142	# the data we've sent (tracked by _recvObjs) we can then determine
	1143	# what the transfer functions are for these # volumes.
[1349]	1144	#
	1145	# Note: There is a considerable tradeoff in having the server report
	1146	# back what the data limits are. It means that much of the code
	1147	# having to do with transfer-functions has to wait for the data
	1148	# to come back, since the isomarkers are calculated based upon
	1149	# the data limits. The client code is much messier because of
	1150	# this. The alternative is to parse any of the 3D formats on the
	1151	# client side.
	1152	#
	1153	itcl::body Rappture::FlowvisViewer::ReceiveData { args } {
	1154	if { ![isconnected] } {
	1155	return
	1156	}
	1157	# Arguments from server are name value pairs. Stuff them in an array.
[1479]	1158	array set values $args
	1159	set tag $values(tag)
[1442]	1160	set parts [split $tag -]
	1161	set dataobj [lindex $parts 0]
[1479]	1162	set _serverObjs($tag) 0
[4848]	1163	set _limits($tag-min) $values(min); # Minimum value of the volume.
	1164	set _limits($tag-max) $values(max); # Maximum value of the volume.
[1448]	1165	unset _recvObjs($tag)
	1166	if { [array size _recvObjs] == 0 } {
[4848]	1167	updatetransferfuncs
[1349]	1168	}
	1169	}
	1170
	1171	#
	1172	# Rebuild --
	1173	#
	1174	# Called automatically whenever something changes that affects the data
	1175	# in the widget. Clears any existing data and rebuilds the widget to
	1176	# display new data.
	1177	#
	1178	itcl::body Rappture::FlowvisViewer::Rebuild {} {
[3498]	1179	set w [winfo width $itk_component(3dview)]
	1180	set h [winfo height $itk_component(3dview)]
	1181	if { $w < 2 \|\| $h < 2 } {
[5110]	1182	update
[3498]	1183	$_dispatcher event -idle !rebuild
	1184	return
	1185	}
[1543]	1186
[3498]	1187	# Turn on buffering of commands to the server. We don't want to
	1188	# be preempted by a server disconnect/reconnect (which automatically
	1189	# generates a new call to Rebuild).
	1190	StartBufferingCommands
	1191
[1349]	1192	# Hide all the isomarkers. Can't remove them. Have to remember the
	1193	# settings since the user may have created/deleted/moved markers.
	1194
[1442]	1195	foreach tf [array names _isomarkers] {
	1196	foreach m $_isomarkers($tf) {
	1197	$m visible no
[1349]	1198	}
	1199	}
	1200
[3498]	1201	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
	1202	set _width $w
	1203	set _height $h
	1204	$_arcball resize $w $h
	1205	Resize
	1206	}
	1207
[1509]	1208	set _first ""
[1295]	1209	foreach dataobj [get] {
[1479]	1210	foreach comp [$dataobj components] {
[3394]	1211	set tag $dataobj-$comp
[4848]	1212	# Send the data as one huge base64-encoded mess -- yuck!
	1213	set data [$dataobj blob $comp]
[1694]	1214	set nbytes [string length $data]
[3421]	1215	if { $_reportClientInfo } {
[3392]	1216	set info {}
[4750]	1217	lappend info "tool_id" [$dataobj hints toolid]
	1218	lappend info "tool_name" [$dataobj hints toolname]
	1219	lappend info "tool_title" [$dataobj hints tooltitle]
	1220	lappend info "tool_command" [$dataobj hints toolcommand]
	1221	lappend info "tool_revision" [$dataobj hints toolrevision]
[3392]	1222	lappend info "dataset_label" [$dataobj hints label]
	1223	lappend info "dataset_size" $nbytes
[3394]	1224	lappend info "dataset_tag" $tag
[3392]	1225	SendCmd "clientinfo [list $info]"
	1226	}
[1694]	1227	set extents [$dataobj extents $comp]
	1228	# I have a field. Is a vector field or a volume field?
[4848]	1229	if { $extents == 1 } {
	1230	set cmd "volume data follows $nbytes $tag\n"
[1694]	1231	} else {
	1232	set cmd [FlowCmd $dataobj $comp $nbytes $extents]
	1233	if { $cmd == "" } {
	1234	puts stderr "no command"
	1235	continue
	1236	}
	1237	}
[4848]	1238	append _outbuf $cmd
[1479]	1239	append _outbuf $data
	1240	NameTransferFunc $dataobj $comp
[3394]	1241	set _recvObjs($tag) 1
[1349]	1242	}
[1295]	1243	}
	1244
[1509]	1245	set _first [lindex [get] 0]
	1246
[1295]	1247	# Reset the camera and other view parameters
[4848]	1248	InitSettings light2side light transp isosurface grid axes volume outline
	1249
[1496]	1250	# nothing to send -- activate the proper volume
[1448]	1251	if {"" != $_first} {
[4848]	1252	AdjustSetting light
	1253	AdjustSetting transp
[1448]	1254	set axis [$_first hints updir]
	1255	if {"" != $axis} {
	1256	SendCmd "up $axis"
	1257	}
[1694]	1258	set location [$_first hints camera]
	1259	if { $location != "" } {
	1260	array set _view $location
	1261	}
[3362]	1262
[1448]	1263	}
[4848]	1264	set _settings($this-qw) $_view(qw)
	1265	set _settings($this-qx) $_view(qx)
	1266	set _settings($this-qy) $_view(qy)
	1267	set _settings($this-qz) $_view(qz)
	1268	set _settings($this-xpan) $_view(xpan)
	1269	set _settings($this-ypan) $_view(ypan)
	1270	set _settings($this-zoom) $_view(zoom)
[1349]	1271
[4848]	1272	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
[3485]	1273	$_arcball quaternion $q
	1274	SendCmd "camera orient $q"
[3492]	1275	SendCmd "camera reset"
[1448]	1276	PanCamera
[4848]	1277	SendCmd "camera zoom $_view(zoom)"
[1349]	1278
[1479]	1279	foreach dataobj [get] {
	1280	foreach comp [$dataobj components] {
[1694]	1281	NameTransferFunc $dataobj $comp
[1479]	1282	}
	1283	}
	1284
[1349]	1285	# nothing to send -- activate the proper ivol
[1442]	1286	set _first [lindex [get] 0]
	1287	if {"" != $_first} {
	1288	set axis [$_first hints updir]
[1349]	1289	if {"" != $axis} {
	1290	SendCmd "up $axis"
	1291	}
[1694]	1292	set location [$_first hints camera]
	1293	if { $location != "" } {
	1294	array set _view $location
	1295	}
[1442]	1296	set comp [lindex [$_first components] 0]
[1479]	1297	set _activeTf [lindex $_obj2style($_first-$comp) 0]
[1442]	1298	}
[1349]	1299
[1479]	1300
[1349]	1301	# sync the state of slicers
	1302	set vols [CurrentVolumeIds -cutplanes]
	1303	foreach axis {x y z} {
[1694]	1304	SendCmd "cutplane state $_settings($this-${axis}cutplane) $axis $vols"
	1305	set pos [expr {0.01*$_settings($this-${axis}cutposition)}]
	1306	SendCmd "cutplane position $pos $axis $vols"
[1349]	1307	}
[1442]	1308	SendCmd "volume data state $_settings($this-volume)"
[1479]	1309	EventuallyResizeLegend
[1442]	1310
	1311	# Actually write the commands to the server socket. If it fails, we don't
	1312	# care. We're finished here.
[1543]	1313	blt::busy hold $itk_component(hull)
[3421]	1314	StopBufferingCommands
[1479]	1315	blt::busy release $itk_component(hull)
[3396]	1316	set _reset 0
[1295]	1317	}
	1318
	1319	# ----------------------------------------------------------------------
[1349]	1320	# USAGE: CurrentVolumeIds ?-cutplanes?
[1295]	1321	#
	1322	# Returns a list of volume server IDs for the current volume being
	1323	# displayed. This is normally a single ID, but it might be a list
	1324	# of IDs if the current data object has multiple components.
	1325	# ----------------------------------------------------------------------
[1349]	1326	itcl::body Rappture::FlowvisViewer::CurrentVolumeIds {{what -all}} {
[1479]	1327	return ""
[1442]	1328	if { $_first == "" } {
[1694]	1329	return
[1442]	1330	}
[1479]	1331	foreach key [array names _serverObjs -] {
[1442]	1332	if {[string match $_first-* $key]} {
[4848]	1333	array set style {
[1349]	1334	-cutplanes 1
	1335	}
	1336	foreach {dataobj comp} [split $key -] break
[4848]	1337	array set style [lindex [$dataobj components -style $comp] 0]
	1338	if {$what != "-cutplanes" \|\| $style(-cutplanes)} {
[1479]	1339	lappend rlist $_serverObjs($key)
[1349]	1340	}
	1341	}
[1295]	1342	}
	1343	return $rlist
	1344	}
	1345
	1346	# ----------------------------------------------------------------------
[1349]	1347	# USAGE: Zoom in
	1348	# USAGE: Zoom out
	1349	# USAGE: Zoom reset
[1295]	1350	#
	1351	# Called automatically when the user clicks on one of the zoom
	1352	# controls for this widget. Changes the zoom for the current view.
	1353	# ----------------------------------------------------------------------
[1349]	1354	itcl::body Rappture::FlowvisViewer::Zoom {option} {
[1295]	1355	switch -- $option {
[1694]	1356	"in" {
[4848]	1357	set _view(zoom) [expr {$_view(zoom)*1.25}]
	1358	set _settings($this-zoom) $_view(zoom)
	1359	SendCmd "camera zoom $_view(zoom)"
[1694]	1360	}
	1361	"out" {
[4848]	1362	set _view(zoom) [expr {$_view(zoom)*0.8}]
	1363	set _settings($this-zoom) $_view(zoom)
	1364	SendCmd "camera zoom $_view(zoom)"
[1694]	1365	}
[1349]	1366	"reset" {
[1694]	1367	array set _view {
[4848]	1368	qw 0.853553
	1369	qx -0.353553
	1370	qy 0.353553
	1371	qz 0.146447
	1372	zoom 1.0
	1373	xpan 0
	1374	ypan 0
[1694]	1375	}
	1376	if { $_first != "" } {
	1377	set location [$_first hints camera]
	1378	if { $location != "" } {
	1379	array set _view $location
	1380	}
	1381	}
[4848]	1382	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
[3485]	1383	$_arcball quaternion $q
	1384	SendCmd "camera orient $q"
[3492]	1385	SendCmd "camera reset"
[4848]	1386	set _settings($this-qw) $_view(qw)
	1387	set _settings($this-qx) $_view(qx)
	1388	set _settings($this-qy) $_view(qy)
	1389	set _settings($this-qz) $_view(qz)
	1390	set _settings($this-xpan) $_view(xpan)
	1391	set _settings($this-ypan) $_view(ypan)
	1392	set _settings($this-zoom) $_view(zoom)
[1349]	1393	}
[1295]	1394	}
	1395	}
	1396
[1349]	1397	itcl::body Rappture::FlowvisViewer::PanCamera {} {
[4848]	1398	#set x [expr ($_view(xpan)) / $_limits(xrange)]
	1399	#set y [expr ($_view(ypan)) / $_limits(yrange)]
	1400	set x $_view(xpan)
	1401	set y $_view(ypan)
[1349]	1402	SendCmd "camera pan $x $y"
	1403	}
	1404
[1295]	1405	# ----------------------------------------------------------------------
[1349]	1406	# USAGE: Rotate click <x> <y>
	1407	# USAGE: Rotate drag <x> <y>
	1408	# USAGE: Rotate release <x> <y>
[1295]	1409	#
[1349]	1410	# Called automatically when the user clicks/drags/releases in the
	1411	# plot area. Moves the plot according to the user's actions.
	1412	# ----------------------------------------------------------------------
	1413	itcl::body Rappture::FlowvisViewer::Rotate {option x y} {
	1414	switch -- $option {
	1415	click {
	1416	$itk_component(3dview) configure -cursor fleur
[1442]	1417	set _click(x) $x
	1418	set _click(y) $y
[1349]	1419	}
	1420	drag {
[1442]	1421	if {[array size _click] == 0} {
[1349]	1422	Rotate click $x $y
	1423	} else {
	1424	set w [winfo width $itk_component(3dview)]
	1425	set h [winfo height $itk_component(3dview)]
	1426	if {$w <= 0 \|\| $h <= 0} {
	1427	return
	1428	}
	1429
	1430	if {[catch {
	1431	# this fails sometimes for no apparent reason
[1442]	1432	set dx [expr {double($x-$_click(x))/$w}]
	1433	set dy [expr {double($y-$_click(y))/$h}]
[1349]	1434	}]} {
	1435	return
	1436	}
	1437
[3485]	1438	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
[4848]	1439	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
	1440	set _settings($this-qw) $_view(qw)
	1441	set _settings($this-qx) $_view(qx)
	1442	set _settings($this-qy) $_view(qy)
	1443	set _settings($this-qz) $_view(qz)
[3485]	1444	SendCmd "camera orient $q"
[1349]	1445
[1442]	1446	set _click(x) $x
	1447	set _click(y) $y
[1349]	1448	}
	1449	}
	1450	release {
	1451	Rotate drag $x $y
	1452	$itk_component(3dview) configure -cursor ""
[1442]	1453	catch {unset _click}
[1349]	1454	}
	1455	default {
	1456	error "bad option \"$option\": should be click, drag, release"
	1457	}
	1458	}
	1459	}
	1460
	1461	# ----------------------------------------------------------------------
	1462	# USAGE: $this Pan click x y
	1463	# $this Pan drag x y
	1464	# $this Pan release x y
	1465	#
[1295]	1466	# Called automatically when the user clicks on one of the zoom
	1467	# controls for this widget. Changes the zoom for the current view.
	1468	# ----------------------------------------------------------------------
[1349]	1469	itcl::body Rappture::FlowvisViewer::Pan {option x y} {
[1295]	1470	# Experimental stuff
	1471	set w [winfo width $itk_component(3dview)]
	1472	set h [winfo height $itk_component(3dview)]
	1473	if { $option == "set" } {
[1349]	1474	set x [expr $x / double($w)]
	1475	set y [expr $y / double($h)]
[4848]	1476	set _view(xpan) [expr $_view(xpan) + $x]
	1477	set _view(ypan) [expr $_view(ypan) + $y]
[1349]	1478	PanCamera
[4848]	1479	set _settings($this-xpan) $_view(xpan)
	1480	set _settings($this-ypan) $_view(ypan)
[1349]	1481	return
[1295]	1482	}
	1483	if { $option == "click" } {
[1442]	1484	set _click(x) $x
	1485	set _click(y) $y
[1349]	1486	$itk_component(3dview) configure -cursor hand1
[1295]	1487	}
	1488	if { $option == "drag" \|\| $option == "release" } {
[1442]	1489	set dx [expr ($_click(x) - $x)/double($w)]
	1490	set dy [expr ($_click(y) - $y)/double($h)]
	1491	set _click(x) $x
	1492	set _click(y) $y
[4848]	1493	set _view(xpan) [expr $_view(xpan) - $dx]
	1494	set _view(ypan) [expr $_view(ypan) - $dy]
[1349]	1495	PanCamera
[4848]	1496	set _settings($this-xpan) $_view(xpan)
	1497	set _settings($this-ypan) $_view(ypan)
[1295]	1498	}
	1499	if { $option == "release" } {
[1349]	1500	$itk_component(3dview) configure -cursor ""
[1295]	1501	}
	1502	}
	1503
	1504
	1505	# ----------------------------------------------------------------------
[1349]	1506	# USAGE: Flow movie record\|stop\|play ?on\|off\|toggle?
[1295]	1507	#
	1508	# Called when the user clicks on the record, stop or play buttons
	1509	# for flow visualization.
	1510	# ----------------------------------------------------------------------
[1349]	1511	itcl::body Rappture::FlowvisViewer::Flow {option args} {
[1295]	1512	switch -- $option {
[1349]	1513	movie {
	1514	if {[llength $args] < 1 \|\| [llength $args] > 2} {
	1515	error "wrong # args: should be \"Flow movie record\|stop\|play ?on\|off\|toggle?\""
	1516	}
	1517	set action [lindex $args 0]
	1518	set op [lindex $args 1]
	1519	if {$op == ""} { set op "on" }
[1295]	1520
[1349]	1521	set current [State $action]
	1522	if {$op == "toggle"} {
	1523	if {$current == "on"} {
	1524	set op "off"
	1525	} else {
	1526	set op "on"
	1527	}
	1528	}
	1529	set cmds ""
	1530	switch -- $action {
	1531	record {
[1694]	1532	if { [$itk_component(rewind) cget -relief] != "sunken" } {
	1533	$itk_component(rewind) configure -relief sunken
	1534	$itk_component(stop) configure -relief raised
	1535	$itk_component(play) configure -relief raised
	1536	set inner $itk_component(settingsFrame)
	1537	set frames [$inner.framecnt value]
	1538	set _settings(nsteps) $frames
	1539	set cmds "flow capture $frames"
	1540	SendCmd $cmds
	1541	}
[1349]	1542	}
	1543	stop {
[1694]	1544	if { [$itk_component(stop) cget -relief] != "sunken" } {
	1545	$itk_component(rewind) configure -relief raised
	1546	$itk_component(stop) configure -relief sunken
	1547	$itk_component(play) configure -relief raised
	1548	_pause
	1549	set cmds "flow reset"
	1550	SendCmd $cmds
	1551	}
[1349]	1552	}
	1553	play {
[1694]	1554	if { [$itk_component(play) cget -relief] != "sunken" } {
	1555	$itk_component(rewind) configure -relief raised
	1556	$itk_component(stop) configure -relief raised
	1557	$itk_component(play) configure \
	1558	-image [Rappture::icon flow-pause] \
	1559	-relief sunken
	1560	bind $itk_component(play) <ButtonPress> \
	1561	[itcl::code $this _pause]
	1562	flow next
	1563	}
[1349]	1564	}
	1565	default {
	1566	error "bad option \"$option\": should be one of record\|stop\|play"
	1567	}
[1295]	1568
[1349]	1569	}
	1570	}
	1571	default {
	1572	error "bad option \"$option\": should be movie"
	1573	}
[1295]	1574	}
	1575	}
	1576
	1577	# ----------------------------------------------------------------------
[1349]	1578	# USAGE: Play
[1295]	1579	#
	1580	# ----------------------------------------------------------------------
[1349]	1581	itcl::body Rappture::FlowvisViewer::Play {} {
[1354]	1582	SendCmd "flow next"
[1442]	1583	set delay [expr {int(ceil(pow($_settings(speed)/10.0+2,2.0)*15))}]
[1349]	1584	$_dispatcher event -after $delay !play
[1295]	1585	}
	1586
	1587	# ----------------------------------------------------------------------
[1349]	1588	# USAGE: Pause
[1295]	1589	#
	1590	# Invoked when the user hits the "pause" button to stop playing the
	1591	# current sequence of frames as a movie.
	1592	# ----------------------------------------------------------------------
[1349]	1593	itcl::body Rappture::FlowvisViewer::Pause {} {
	1594	$_dispatcher cancel !play
[1295]	1595
[1349]	1596	# Toggle the button to "play" mode
[1295]	1597	$itk_component(play) configure \
[1349]	1598	-image [Rappture::icon flow-start] \
	1599	-relief raised
[1295]	1600	bind $itk_component(play) <ButtonPress> \
[1349]	1601	[itcl::code $this Flow movie play toggle]
[1295]	1602	}
	1603
	1604	# ----------------------------------------------------------------------
[3396]	1605	# USAGE: InitSettings <what> ?<value>?
[1295]	1606	#
	1607	# Used internally to update rendering settings whenever parameters
	1608	# change in the popup settings panel. Sends the new settings off
	1609	# to the back end.
	1610	# ----------------------------------------------------------------------
[3396]	1611	itcl::body Rappture::FlowvisViewer::InitSettings { args } {
	1612	foreach arg $args {
	1613	AdjustSetting $arg
	1614	}
	1615	}
	1616
	1617	# ----------------------------------------------------------------------
	1618	# USAGE: AdjustSetting <what> ?<value>?
	1619	#
	1620	# Used internally to update rendering settings whenever parameters
	1621	# change in the popup settings panel. Sends the new settings off
	1622	# to the back end.
	1623	# ----------------------------------------------------------------------
	1624	itcl::body Rappture::FlowvisViewer::AdjustSetting {what {value ""}} {
[1295]	1625	switch -- $what {
[3396]	1626	colormap {
	1627	set color [$itk_component(colormap) value]
	1628	set _settings(colormap) $color
	1629	#ResetColormap $color
	1630	}
[1349]	1631	light {
[1491]	1632	if { $_first != "" } {
[1694]	1633	set comp [lindex [$_first components] 0]
	1634	set tag $_first-$comp
[2876]	1635	set diffuse [expr {0.01*$_settings($this-light)}]
[3362]	1636	set ambient [expr {1.0 - $diffuse}]
	1637	set specularLevel 0.3
	1638	set specularExp 90.0
	1639	SendCmd "$tag configure -ambient $ambient -diffuse $diffuse -specularLevel $specularLevel -specularExp $specularExp"
[1349]	1640	}
	1641	}
[3396]	1642	light2side {
	1643	if { $_first != "" } {
	1644	set comp [lindex [$_first components] 0]
	1645	set tag $_first-$comp
	1646	set val $_settings($this-light2side)
[3398]	1647	SendCmd "$tag configure -light2side $val"
[3396]	1648	}
	1649	}
[4848]	1650	transp {
[1491]	1651	if { $_first != "" } {
[1694]	1652	set comp [lindex [$_first components] 0]
	1653	set tag $_first-$comp
[4848]	1654	set opacity [expr { 0.01 * double($_settings($this-transp)) }]
[1479]	1655	SendCmd "$tag configure -opacity $opacity"
[1349]	1656	}
	1657	}
[4848]	1658	opacity {
	1659	if { $_first != "" && $_activeTf != "" } {
	1660	set opacity [expr { 0.01 * double($_settings($this-opacity)) }]
	1661	set tf $_activeTf
	1662	set _settings($this-$tf-opacity) $opacity
	1663	updatetransferfuncs
	1664	}
	1665	}
	1666
[1349]	1667	thickness {
[1494]	1668	if { $_first != "" && $_activeTf != "" } {
[1442]	1669	set val $_settings($this-thickness)
[1349]	1670	# Scale values between 0.00001 and 0.01000
	1671	set sval [expr {0.0001*double($val)}]
[1442]	1672	set tf $_activeTf
	1673	set _settings($this-$tf-thickness) $sval
[4848]	1674	updatetransferfuncs
[1349]	1675	}
	1676	}
	1677	"outline" {
[1491]	1678	if { $_first != "" } {
[1694]	1679	set comp [lindex [$_first components] 0]
	1680	set tag $_first-$comp
[1479]	1681	SendCmd "$tag configure -outline $_settings($this-outline)"
[1349]	1682	}
	1683	}
	1684	"isosurface" {
[1491]	1685	if { [isconnected] } {
[1694]	1686	SendCmd "volume shading isosurface $_settings($this-isosurface)"
	1687	}
[1349]	1688	}
	1689	"grid" {
	1690	if { [isconnected] } {
[1442]	1691	SendCmd "grid visible $_settings($this-grid)"
[1349]	1692	}
	1693	}
	1694	"axes" {
	1695	if { [isconnected] } {
[1442]	1696	SendCmd "axis visible $_settings($this-axes)"
[1349]	1697	}
	1698	}
[1694]	1699	"legend" {
	1700	if { $_settings($this-legend) } {
	1701	blt::table $itk_component(plotarea) \
	1702	0,0 $itk_component(3dview) -fill both \
	1703	1,0 $itk_component(legend) -fill x
	1704	blt::table configure $itk_component(plotarea) r1 -resize none
	1705	} else {
	1706	blt::table forget $itk_component(legend)
	1707	}
	1708	}
[1349]	1709	"volume" {
[1491]	1710	if { $_first != "" } {
[1694]	1711	set comp [lindex [$_first components] 0]
	1712	set tag $_first-$comp
[1479]	1713	SendCmd "$tag configure -volume $_settings($this-volume)"
[1694]	1714	}
[1349]	1715	}
[1442]	1716	"xcutplane" - "ycutplane" - "zcutplane" {
[1694]	1717	set axis [string range $what 0 0]
	1718	set bool $_settings($this-$what)
[1442]	1719	if { [isconnected] } {
[1694]	1720	set vols [CurrentVolumeIds -cutplanes]
	1721	SendCmd "cutplane state $bool $axis $vols"
	1722	}
	1723	if { $bool } {
	1724	$itk_component(${axis}CutScale) configure -state normal \
	1725	-troughcolor white
[1442]	1726	} else {
[1694]	1727	$itk_component(${axis}CutScale) configure -state disabled \
	1728	-troughcolor grey82
[1442]	1729	}
[1349]	1730	}
	1731	default {
	1732	error "don't know how to fix $what"
	1733	}
[1295]	1734	}
	1735	}
	1736
	1737	# ----------------------------------------------------------------------
[1448]	1738	# USAGE: ResizeLegend
[1295]	1739	#
[1349]	1740	# Used internally to update the legend area whenever it changes size
	1741	# or when the field changes. Asks the server to send a new legend
	1742	# for the current field.
[1295]	1743	# ----------------------------------------------------------------------
[1448]	1744	itcl::body Rappture::FlowvisViewer::ResizeLegend {} {
	1745	set _resizeLegendPending 0
[1349]	1746	set lineht [font metrics $itk_option(-font) -linespace]
[1442]	1747	set w [expr {$_width-20}]
[1349]	1748	set h [expr {[winfo height $itk_component(legend)]-20-$lineht}]
[1479]	1749
	1750	if { $_first == "" } {
[1694]	1751	return
[1479]	1752	}
	1753	set comp [lindex [$_first components] 0]
	1754	set tag $_first-$comp
	1755	#set _activeTf [lindex $_obj2style($tag) 0]
[1442]	1756	if {$w > 0 && $h > 0 && "" != $_activeTf} {
[1479]	1757	#SendCmd "legend $_activeTf $w $h"
[1694]	1758	SendCmd "$tag legend $w $h"
[1349]	1759	} else {
	1760	# Can't do this as this will remove the items associated with the
	1761	# isomarkers.
	1762
	1763	#$itk_component(legend) delete all
	1764	}
	1765	}
	1766
	1767	#
[1377]	1768	# NameTransferFunc --
[1349]	1769	#
	1770	# Creates a transfer function name based on the <style> settings in the
	1771	# library run.xml file. This placeholder will be used later to create
	1772	# and send the actual transfer function once the data info has been sent
	1773	# to us by the render server. [We won't know the volume limits until the
	1774	# server parses the 3D data and sends back the limits via ReceiveData.]
	1775	#
	1776	# FIXME: The current way we generate transfer-function names completely
	1777	# ignores the -markers option. The problem is that we are forced
	1778	# to compute the name from an increasing complex set of values:
	1779	# color, levels, marker, opacity. I think we're stuck doing it
	1780	# now.
	1781	#
[4848]	1782	itcl::body Rappture::FlowvisViewer::NameTransferFunc { dataobj comp } {
	1783	array set style {
[3396]	1784	-color BCGYR
[1349]	1785	-levels 6
[4848]	1786	-opacity 1.0
	1787	-light 40
	1788	-transp 50
[1295]	1789	}
[4848]	1790	array set style [lindex [$dataobj components -style $comp] 0]
	1791	set _settings($this-light) $style(-light)
	1792	set _settings($this-transp) $style(-transp)
	1793	set _settings($this-opacity) [expr $style(-opacity) * 100]
	1794	set tf "$style(-color):$style(-levels):$style(-opacity)"
	1795	set _obj2style($dataobj-$comp) $tf
	1796	lappend _style2objs($tf) $dataobj $comp
	1797	return $tf
[1349]	1798	}
	1799
	1800	#
[1377]	1801	# ComputeTransferFunc --
[1349]	1802	#
	1803	# Computes and sends the transfer function to the render server. It's
	1804	# assumed that the volume data limits are known and that the global
	1805	# transfer-functions slider values have be setup. Both parts are
	1806	# needed to compute the relative value (location) of the marker, and
	1807	# the alpha map of the transfer function.
	1808	#
[1377]	1809	itcl::body Rappture::FlowvisViewer::ComputeTransferFunc { tf } {
[4848]	1810	array set style {
[3396]	1811	-color BCGYR
[1349]	1812	-levels 6
[4848]	1813	-opacity 1.0
	1814	-light 40
	1815	-transp 50
[1349]	1816	}
	1817	set dataobj ""; set comp ""
[1442]	1818	foreach {dataobj comp} $_style2objs($tf) break
[1349]	1819	if { $dataobj == "" } {
	1820	return 0
	1821	}
[4848]	1822	array set style [lindex [$dataobj components -style $comp] 0]
[1349]	1823
[4848]	1824
[1349]	1825	# We have to parse the style attributes for a volume using this
	1826	# transfer-function once. This sets up the initial isomarkers for the
	1827	# transfer function. The user may add/delete markers, so we have to
	1828	# maintain a list of markers for each transfer-function. We use the one
	1829	# of the volumes (the first in the list) using the transfer-function as a
	1830	# reference.
	1831	#
	1832	# FIXME: The current way we generate transfer-function names completely
	1833	# ignores the -markers option. The problem is that we are forced
	1834	# to compute the name from an increasing complex set of values:
	1835	# color, levels, marker, opacity. I think the cow's out of the
	1836	# barn on this one.
	1837
[1442]	1838	if { ![info exists _isomarkers($tf)] } {
[1349]	1839	# Have to defer creation of isomarkers until we have data limits
[4848]	1840	if { [info exists style(-markers)] &&
	1841	[llength $style(-markers)] > 0 } {
	1842	ParseMarkersOption $tf $style(-markers)
[1349]	1843	} else {
[4848]	1844	ParseLevelsOption $tf $style(-levels)
[1349]	1845	}
	1846	}
[4848]	1847	if { [info exists style(-nonuniformcolors)] } {
	1848	foreach { value color } $style(-nonuniformcolors) {
[1694]	1849	append cmap "$value [Color2RGB $color] "
	1850	}
[1479]	1851	} else {
[4848]	1852	set cmap [ColorsToColormap $style(-color)]
[1295]	1853	}
[4848]	1854	set tag $this-$tf
	1855	if { ![info exists _settings($tag-opacity)] } {
	1856	set _settings($tag-opacity) $style(-opacity)
[1295]	1857	}
[4848]	1858	set max 1.0 ;#$_settings($tag-opacity)
	1859
[1349]	1860	set isovalues {}
[1442]	1861	foreach m $_isomarkers($tf) {
[1377]	1862	lappend isovalues [$m relval]
[1349]	1863	}
	1864	# Sort the isovalues
	1865	set isovalues [lsort -real $isovalues]
	1866
[1442]	1867	if { ![info exists _settings($tag-thickness)]} {
[3396]	1868	set _settings($tag-thickness) 0.005
[1349]	1869	}
[1442]	1870	set delta $_settings($tag-thickness)
[1349]	1871
	1872	set first [lindex $isovalues 0]
	1873	set last [lindex $isovalues end]
	1874	set wmap ""
	1875	if { $first == "" \|\| $first != 0.0 } {
	1876	lappend wmap 0.0 0.0
	1877	}
	1878	foreach x $isovalues {
	1879	set x1 [expr {$x-$delta-0.00001}]
	1880	set x2 [expr {$x-$delta}]
	1881	set x3 [expr {$x+$delta}]
	1882	set x4 [expr {$x+$delta+0.00001}]
	1883	if { $x1 < 0.0 } {
	1884	set x1 0.0
	1885	} elseif { $x1 > 1.0 } {
	1886	set x1 1.0
	1887	}
	1888	if { $x2 < 0.0 } {
	1889	set x2 0.0
	1890	} elseif { $x2 > 1.0 } {
	1891	set x2 1.0
	1892	}
	1893	if { $x3 < 0.0 } {
	1894	set x3 0.0
	1895	} elseif { $x3 > 1.0 } {
	1896	set x3 1.0
	1897	}
	1898	if { $x4 < 0.0 } {
	1899	set x4 0.0
	1900	} elseif { $x4 > 1.0 } {
	1901	set x4 1.0
	1902	}
	1903	# add spikes in the middle
	1904	lappend wmap $x1 0.0
	1905	lappend wmap $x2 $max
	1906	lappend wmap $x3 $max
	1907	lappend wmap $x4 0.0
	1908	}
	1909	if { $last == "" \|\| $last != 1.0 } {
	1910	lappend wmap 1.0 0.0
	1911	}
[3396]	1912	SendCmd "transfunc define $tf { $cmap } { $wmap }"
	1913	return [SendCmd "$dataobj-$comp configure -transferfunction $tf"]
[1295]	1914	}
	1915
	1916	# ----------------------------------------------------------------------
	1917	# CONFIGURATION OPTION: -plotbackground
	1918	# ----------------------------------------------------------------------
	1919	itcl::configbody Rappture::FlowvisViewer::plotbackground {
[1349]	1920	if { [isconnected] } {
[4848]	1921	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
	1922	#fix this!
	1923	#SendCmd "color background $r $g $b"
[1349]	1924	}
[1295]	1925	}
	1926
	1927	# ----------------------------------------------------------------------
	1928	# CONFIGURATION OPTION: -plotforeground
	1929	# ----------------------------------------------------------------------
	1930	itcl::configbody Rappture::FlowvisViewer::plotforeground {
[1349]	1931	if { [isconnected] } {
[4848]	1932	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
	1933	#fix this!
	1934	#SendCmd "color background $r $g $b"
[1349]	1935	}
[1295]	1936	}
	1937
	1938	# ----------------------------------------------------------------------
	1939	# CONFIGURATION OPTION: -plotoutline
	1940	# ----------------------------------------------------------------------
	1941	itcl::configbody Rappture::FlowvisViewer::plotoutline {
[1349]	1942	# Must check if we are connected because this routine is called from the
	1943	# class body when the -plotoutline itk_option is defined. At that point
	1944	# the FlowvisViewer class constructor hasn't been called, so we can't
	1945	# start sending commands to visualization server.
	1946	if { [isconnected] } {
	1947	if {"" == $itk_option(-plotoutline)} {
	1948	SendCmd "volume outline state off"
	1949	} else {
	1950	SendCmd "volume outline state on"
	1951	SendCmd "volume outline color [Color2RGB $itk_option(-plotoutline)]"
	1952	}
[1295]	1953	}
	1954	}
[1349]	1955
	1956	#
	1957	# The -levels option takes a single value that represents the number
	1958	# of evenly distributed markers based on the current data range. Each
	1959	# marker is a relative value from 0.0 to 1.0.
	1960	#
[1442]	1961	itcl::body Rappture::FlowvisViewer::ParseLevelsOption { tf levels } {
[1349]	1962	set c $itk_component(legend)
	1963	regsub -all "," $levels " " levels
	1964	if {[string is int $levels]} {
	1965	for {set i 1} { $i <= $levels } {incr i} {
	1966	set x [expr {double($i)/($levels+1)}]
[1442]	1967	set m [Rappture::IsoMarker \#auto $c $this $tf]
[1377]	1968	$m relval $x
[1442]	1969	lappend _isomarkers($tf) $m
[1349]	1970	}
	1971	} else {
	1972	foreach x $levels {
[1442]	1973	set m [Rappture::IsoMarker \#auto $c $this $tf]
[1377]	1974	$m relval $x
[1442]	1975	lappend _isomarkers($tf) $m
[1349]	1976	}
	1977	}
	1978	}
	1979
	1980	#
	1981	# The -markers option takes a list of zero or more values (the values
	1982	# may be separated either by spaces or commas) that have the following
	1983	# format:
	1984	#
	1985	# N% Percent of current total data range. Converted to
	1986	# to a relative value between 0.0 and 1.0.
	1987	# N Absolute value of marker. If the marker is outside of
	1988	# the current range, it will be displayed on the outer
	1989	# edge of the legends, but it range it represents will
	1990	# not be seen.
	1991	#
[1442]	1992	itcl::body Rappture::FlowvisViewer::ParseMarkersOption { tf markers } {
[1349]	1993	set c $itk_component(legend)
	1994	regsub -all "," $markers " " markers
	1995	foreach marker $markers {
	1996	set n [scan $marker "%g%s" value suffix]
	1997	if { $n == 2 && $suffix == "%" } {
	1998	# ${n}% : Set relative value.
	1999	set value [expr {$value * 0.01}]
[1442]	2000	set m [Rappture::IsoMarker \#auto $c $this $tf]
[1377]	2001	$m relval $value
[1442]	2002	lappend _isomarkers($tf) $m
[1349]	2003	} else {
	2004	# ${n} : Set absolute value.
[1442]	2005	set m [Rappture::IsoMarker \#auto $c $this $tf]
[1377]	2006	$m absval $value
[1442]	2007	lappend _isomarkers($tf) $m
[1349]	2008	}
	2009	}
	2010	}
	2011
	2012	# ----------------------------------------------------------------------
[1377]	2013	# USAGE: UndateTransferFuncs
[1349]	2014	# ----------------------------------------------------------------------
[4848]	2015	itcl::body Rappture::FlowvisViewer::updatetransferfuncs {} {
[1479]	2016	$_dispatcher event -after 100 !send_transfunc
[1349]	2017	}
	2018
	2019	itcl::body Rappture::FlowvisViewer::AddIsoMarker { x y } {
[1442]	2020	if { $_activeTf == "" } {
[1349]	2021	error "active transfer function isn't set"
	2022	}
[1442]	2023	set tf $_activeTf
[1349]	2024	set c $itk_component(legend)
[1442]	2025	set m [Rappture::IsoMarker \#auto $c $this $tf]
[1349]	2026	set w [winfo width $c]
[1377]	2027	$m relval [expr {double($x-10)/($w-20)}]
[1442]	2028	lappend _isomarkers($tf) $m
[4848]	2029	updatetransferfuncs
[1349]	2030	return 1
	2031	}
	2032
[4848]	2033	itcl::body Rappture::FlowvisViewer::rmdupmarker { marker x } {
[1377]	2034	set tf [$marker transferfunc]
[1349]	2035	set bool 0
[1442]	2036	if { [info exists _isomarkers($tf)] } {
[1349]	2037	set list {}
	2038	set marker [namespace tail $marker]
[1442]	2039	foreach m $_isomarkers($tf) {
[1377]	2040	set sx [$m screenpos]
[1349]	2041	if { $m != $marker } {
	2042	if { $x >= ($sx-3) && $x <= ($sx+3) } {
[1377]	2043	$marker relval [$m relval]
[1349]	2044	itcl::delete object $m
	2045	bell
	2046	set bool 1
	2047	continue
	2048	}
	2049	}
	2050	lappend list $m
	2051	}
[1442]	2052	set _isomarkers($tf) $list
[4848]	2053	updatetransferfuncs
[1349]	2054	}
	2055	return $bool
	2056	}
	2057
[4848]	2058	itcl::body Rappture::FlowvisViewer::overmarker { marker x } {
[1377]	2059	set tf [$marker transferfunc]
[1442]	2060	if { [info exists _isomarkers($tf)] } {
[1349]	2061	set marker [namespace tail $marker]
[1442]	2062	foreach m $_isomarkers($tf) {
[1377]	2063	set sx [$m screenpos]
[1349]	2064	if { $m != $marker } {
	2065	set bool [expr { $x >= ($sx-3) && $x <= ($sx+3) }]
[1376]	2066	$m activate $bool
[1349]	2067	}
	2068	}
	2069	}
	2070	return ""
	2071	}
	2072
[4848]	2073	itcl::body Rappture::FlowvisViewer::limits { tf } {
	2074	set _limits(vmin) 0.0
	2075	set _limits(vmax) 1.0
	2076	if { ![info exists _style2objs($tf)] } {
	2077	puts stderr "no style2objs for $tf tf=($tf)"
[1694]	2078	return [array get _limits]
[1349]	2079	}
[1442]	2080	set min ""; set max ""
[4848]	2081	foreach {dataobj comp} $_style2objs($tf) {
	2082	set tag $dataobj-$comp
[1694]	2083	if { ![info exists _serverObjs($tag)] } {
	2084	puts stderr "$tag not in serverObjs?"
	2085	continue
	2086	}
[4848]	2087	if { ![info exists _limits($tag-min)] } {
[1694]	2088	puts stderr "$tag no min?"
	2089	continue
	2090	}
[4848]	2091	if { $min == "" \|\| $min > $_limits($tag-min) } {
	2092	set min $_limits($tag-min)
[1694]	2093	}
[4848]	2094	if { $max == "" \|\| $max < $_limits($tag-max) } {
	2095	set max $_limits($tag-max)
[1694]	2096	}
[1349]	2097	}
[4848]	2098	if { $min != "" } {
	2099	set _limits(vmin) $min
	2100	}
	2101	if { $max != "" } {
	2102	set _limits(vmax) $max
[1442]	2103	}
[4848]	2104	return [array get _limits]
[1349]	2105	}
	2106
[1373]	2107	itcl::body Rappture::FlowvisViewer::BuildViewTab {} {
[1349]	2108	foreach { key value } {
[2744]	2109	grid 0
	2110	axes 0
	2111	outline 1
	2112	volume 1
	2113	legend 1
	2114	particles 1
	2115	lic 1
[1349]	2116	} {
[1694]	2117	set _settings($this-$key) $value
[1349]	2118	}
	2119
	2120	set fg [option get $itk_component(hull) font Font]
	2121	#set bfg [option get $itk_component(hull) boldFont Font]
	2122
[1375]	2123	set inner [$itk_component(main) insert end \
	2124	-title "View Settings" \
	2125	-icon [Rappture::icon wrench]]
	2126	$inner configure -borderwidth 4
	2127
[1442]	2128	set ::Rappture::FlowvisViewer::_settings($this-isosurface) 0
[1349]	2129	checkbutton $inner.isosurface \
	2130	-text "Isosurface shading" \
[1442]	2131	-variable [itcl::scope _settings($this-isosurface)] \
[3396]	2132	-command [itcl::code $this AdjustSetting isosurface] \
[1694]	2133	-font "Arial 9"
[1349]	2134
	2135	checkbutton $inner.axes \
	2136	-text "Axes" \
[1442]	2137	-variable [itcl::scope _settings($this-axes)] \
[3396]	2138	-command [itcl::code $this AdjustSetting axes] \
[1694]	2139	-font "Arial 9"
[1349]	2140
	2141	checkbutton $inner.grid \
	2142	-text "Grid" \
[1442]	2143	-variable [itcl::scope _settings($this-grid)] \
[3396]	2144	-command [itcl::code $this AdjustSetting grid] \
[1694]	2145	-font "Arial 9"
[1349]	2146
	2147	checkbutton $inner.outline \
	2148	-text "Outline" \
[1442]	2149	-variable [itcl::scope _settings($this-outline)] \
[3396]	2150	-command [itcl::code $this AdjustSetting outline] \
[1694]	2151	-font "Arial 9"
[1349]	2152
	2153	checkbutton $inner.legend \
	2154	-text "Legend" \
[1442]	2155	-variable [itcl::scope _settings($this-legend)] \
[3396]	2156	-command [itcl::code $this AdjustSetting legend] \
[1694]	2157	-font "Arial 9"
[1349]	2158
	2159	checkbutton $inner.volume \
	2160	-text "Volume" \
[1442]	2161	-variable [itcl::scope _settings($this-volume)] \
[3396]	2162	-command [itcl::code $this AdjustSetting volume] \
[1694]	2163	-font "Arial 9"
[1349]	2164
	2165	checkbutton $inner.particles \
	2166	-text "Particles" \
[1442]	2167	-variable [itcl::scope _settings($this-particles)] \
[3396]	2168	-command [itcl::code $this AdjustSetting particles] \
[1694]	2169	-font "Arial 9"
[1349]	2170
	2171	checkbutton $inner.lic \
	2172	-text "Lic" \
[1442]	2173	-variable [itcl::scope _settings($this-lic)] \
[3396]	2174	-command [itcl::code $this AdjustSetting lic] \
[1694]	2175	-font "Arial 9"
[1349]	2176
[1442]	2177	frame $inner.frame
	2178
[1349]	2179	blt::table $inner \
[3441]	2180	0,0 $inner.axes -cspan 2 -anchor w \
	2181	1,0 $inner.grid -cspan 2 -anchor w \
	2182	2,0 $inner.outline -cspan 2 -anchor w \
	2183	3,0 $inner.volume -cspan 2 -anchor w \
	2184	4,0 $inner.legend -cspan 2 -anchor w
[1349]	2185
[1442]	2186	bind $inner <Map> [itcl::code $this GetFlowInfo $inner]
	2187
	2188	blt::table configure $inner r* -resize none
	2189	blt::table configure $inner r5 -resize expand
[1349]	2190	}
	2191
[1373]	2192	itcl::body Rappture::FlowvisViewer::BuildVolumeTab {} {
[4848]	2193	foreach { key value } {
	2194	light2side 1
	2195	light 40
	2196	transp 50
	2197	opacity 100
	2198	thickness 350
	2199	} {
	2200	set _settings($this-$key) $value
	2201	}
	2202
[1375]	2203	set inner [$itk_component(main) insert end \
	2204	-title "Volume Settings" \
[1442]	2205	-icon [Rappture::icon volume-on]]
[1375]	2206	$inner configure -borderwidth 4
[1349]	2207
[1373]	2208	set fg [option get $itk_component(hull) font Font]
	2209	#set bfg [option get $itk_component(hull) boldFont Font]
	2210
[1491]	2211	checkbutton $inner.vol -text "Show volume" -font $fg \
	2212	-text "Volume" \
	2213	-variable [itcl::scope _settings($this-volume)] \
[3396]	2214	-command [itcl::code $this AdjustSetting volume] \
[1694]	2215	-font "Arial 9"
[1491]	2216
	2217	label $inner.shading -text "Shading:" -font $fg
	2218
[3396]	2219	checkbutton $inner.light2side -text "Two-sided lighting" -font $fg \
	2220	-variable [itcl::scope _settings($this-light2side)] \
	2221	-command [itcl::code $this AdjustSetting light2side]
	2222
[3362]	2223	label $inner.dim -text "Glow" -font $fg
[1373]	2224	::scale $inner.light -from 0 -to 100 -orient horizontal \
[1442]	2225	-variable [itcl::scope _settings($this-light)] \
[1694]	2226	-width 10 \
[3396]	2227	-showvalue off -command [itcl::code $this AdjustSetting light]
[3362]	2228	label $inner.bright -text "Surface" -font $fg
[1373]	2229
[4848]	2230	label $inner.fog -text "Clear" -font $fg
	2231	::scale $inner.transp -from 0 -to 100 -orient horizontal \
	2232	-variable [itcl::scope _settings($this-transp)] \
	2233	-width 10 \
	2234	-showvalue off -command [itcl::code $this AdjustSetting transp]
	2235	label $inner.plastic -text "Opaque" -font $fg
	2236
[1373]	2237	label $inner.clear -text "Clear" -font $fg
	2238	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
[1442]	2239	-variable [itcl::scope _settings($this-opacity)] \
[1694]	2240	-width 10 \
[3396]	2241	-showvalue off -command [itcl::code $this AdjustSetting opacity]
[1373]	2242	label $inner.opaque -text "Opaque" -font $fg
	2243
	2244	label $inner.thin -text "Thin" -font $fg
	2245	::scale $inner.thickness -from 0 -to 1000 -orient horizontal \
[1442]	2246	-variable [itcl::scope _settings($this-thickness)] \
[1694]	2247	-width 10 \
[3396]	2248	-showvalue off -command [itcl::code $this AdjustSetting thickness]
[1373]	2249	label $inner.thick -text "Thick" -font $fg
	2250
[3396]	2251	label $inner.colormap_l -text "Colormap" -font "Arial 9"
	2252	itk_component add colormap {
	2253	Rappture::Combobox $inner.colormap -width 10 -editable no
	2254	}
	2255
[4848]	2256	$inner.colormap choices insert end \
	2257	"BCGYR" "BCGYR" \
	2258	"BGYOR" "BGYOR" \
	2259	"blue" "blue" \
	2260	"blue-to-brown" "blue-to-brown" \
	2261	"blue-to-orange" "blue-to-orange" \
	2262	"blue-to-grey" "blue-to-grey" \
	2263	"green-to-magenta" "green-to-magenta" \
	2264	"greyscale" "greyscale" \
	2265	"nanohub" "nanohub" \
	2266	"rainbow" "rainbow" \
	2267	"spectral" "spectral" \
	2268	"ROYGB" "ROYGB" \
	2269	"RYGCB" "RYGCB" \
	2270	"brown-to-blue" "brown-to-blue" \
	2271	"grey-to-blue" "grey-to-blue" \
	2272	"orange-to-blue" "orange-to-blue" \
	2273	"none" "none"
	2274
[3396]	2275	$itk_component(colormap) value "BCGYR"
	2276	bind $inner.colormap <<Value>> \
	2277	[itcl::code $this AdjustSetting colormap]
	2278
[1373]	2279	blt::table $inner \
[3396]	2280	0,0 $inner.vol -cspan 4 -anchor w -pady 2 \
[3441]	2281	1,0 $inner.shading -cspan 4 -anchor w -pady {10 2} \
	2282	2,0 $inner.light2side -cspan 4 -anchor w -pady 2 \
[3396]	2283	3,0 $inner.dim -anchor e -pady 2 \
[3441]	2284	3,1 $inner.light -cspan 2 -pady 2 -fill x \
[3396]	2285	3,3 $inner.bright -anchor w -pady 2 \
[4848]	2286	4,0 $inner.fog -anchor e -pady 2 \
	2287	4,1 $inner.transp -cspan 2 -pady 2 -fill x \
	2288	4,3 $inner.plastic -anchor w -pady 2 \
[3396]	2289	5,0 $inner.thin -anchor e -pady 2 \
[3441]	2290	5,1 $inner.thickness -cspan 2 -pady 2 -fill x\
[3396]	2291	5,3 $inner.thick -anchor w -pady 2
[1491]	2292
[1442]	2293	blt::table configure $inner c0 c1 c3 r* -resize none
[3396]	2294	blt::table configure $inner r6 -resize expand
[1373]	2295	}
	2296
	2297	itcl::body Rappture::FlowvisViewer::BuildCutplanesTab {} {
[1375]	2298	set inner [$itk_component(main) insert end \
	2299	-title "Cutplane Settings" \
	2300	-icon [Rappture::icon cutbutton]]
	2301	$inner configure -borderwidth 4
[1373]	2302
[1349]	2303	# X-value slicer...
	2304	itk_component add xCutButton {
[1442]	2305	Rappture::PushButton $inner.xbutton \
[1694]	2306	-onimage [Rappture::icon x-cutplane] \
	2307	-offimage [Rappture::icon x-cutplane] \
[3396]	2308	-command [itcl::code $this AdjustSetting xcutplane] \
[1694]	2309	-variable [itcl::scope _settings($this-xcutplane)]
[1349]	2310	}
	2311	Rappture::Tooltip::for $itk_component(xCutButton) \
	2312	"Toggle the X cut plane on/off"
	2313
	2314	itk_component add xCutScale {
[1375]	2315	::scale $inner.xval -from 100 -to 0 \
[1349]	2316	-width 10 -orient vertical -showvalue off \
[1376]	2317	-borderwidth 1 -highlightthickness 0 \
[1442]	2318	-command [itcl::code $this Slice move x] \
[1694]	2319	-variable [itcl::scope _settings($this-xcutposition)]
[1349]	2320	} {
	2321	usual
[1375]	2322	ignore -borderwidth -highlightthickness
[1349]	2323	}
[1376]	2324	# Set the default cutplane value before disabling the scale.
[1349]	2325	$itk_component(xCutScale) set 50
[1376]	2326	$itk_component(xCutScale) configure -state disabled
[1349]	2327	Rappture::Tooltip::for $itk_component(xCutScale) \
	2328	"@[itcl::code $this SlicerTip x]"
	2329
	2330	# Y-value slicer...
	2331	itk_component add yCutButton {
[1442]	2332	Rappture::PushButton $inner.ybutton \
[1694]	2333	-onimage [Rappture::icon y-cutplane] \
	2334	-offimage [Rappture::icon y-cutplane] \
[3396]	2335	-command [itcl::code $this AdjustSetting ycutplane] \
[1694]	2336	-variable [itcl::scope _settings($this-ycutplane)]
[1349]	2337	}
	2338	Rappture::Tooltip::for $itk_component(yCutButton) \
	2339	"Toggle the Y cut plane on/off"
	2340
	2341	itk_component add yCutScale {
[1375]	2342	::scale $inner.yval -from 100 -to 0 \
[1349]	2343	-width 10 -orient vertical -showvalue off \
[1376]	2344	-borderwidth 1 -highlightthickness 0 \
[1442]	2345	-command [itcl::code $this Slice move y] \
[1694]	2346	-variable [itcl::scope _settings($this-ycutposition)]
[1349]	2347	} {
	2348	usual
[1375]	2349	ignore -borderwidth -highlightthickness
[1349]	2350	}
	2351	Rappture::Tooltip::for $itk_component(yCutScale) \
	2352	"@[itcl::code $this SlicerTip y]"
[1376]	2353	# Set the default cutplane value before disabling the scale.
[1373]	2354	$itk_component(yCutScale) set 50
[1376]	2355	$itk_component(yCutScale) configure -state disabled
[1349]	2356
	2357	# Z-value slicer...
	2358	itk_component add zCutButton {
[1442]	2359	Rappture::PushButton $inner.zbutton \
[1694]	2360	-onimage [Rappture::icon z-cutplane] \
	2361	-offimage [Rappture::icon z-cutplane] \
[3396]	2362	-command [itcl::code $this AdjustSetting zcutplane] \
[1694]	2363	-variable [itcl::scope _settings($this-zcutplane)]
[1349]	2364	}
	2365	Rappture::Tooltip::for $itk_component(zCutButton) \
	2366	"Toggle the Z cut plane on/off"
	2367
	2368	itk_component add zCutScale {
[1375]	2369	::scale $inner.zval -from 100 -to 0 \
[1349]	2370	-width 10 -orient vertical -showvalue off \
[1376]	2371	-borderwidth 1 -highlightthickness 0 \
[1442]	2372	-command [itcl::code $this Slice move z] \
[1694]	2373	-variable [itcl::scope _settings($this-zcutposition)]
[1349]	2374	} {
	2375	usual
[1375]	2376	ignore -borderwidth -highlightthickness
[1349]	2377	}
	2378	$itk_component(zCutScale) set 50
[1376]	2379	$itk_component(zCutScale) configure -state disabled
[1349]	2380	#$itk_component(zCutScale) configure -state disabled
	2381	Rappture::Tooltip::for $itk_component(zCutScale) \
	2382	"@[itcl::code $this SlicerTip z]"
	2383
	2384	blt::table $inner \
[1694]	2385	1,1 $itk_component(xCutButton) \
	2386	1,2 $itk_component(yCutButton) \
	2387	1,3 $itk_component(zCutButton) \
	2388	0,1 $itk_component(xCutScale) \
	2389	0,2 $itk_component(yCutScale) \
	2390	0,3 $itk_component(zCutScale) \
[1375]	2391
[1376]	2392	blt::table configure $inner r0 r1 c* -resize none
	2393	blt::table configure $inner r2 c4 -resize expand
	2394	blt::table configure $inner c0 -width 2
	2395	blt::table configure $inner c1 c2 c3 -padx 2
[1349]	2396	}
	2397
[1373]	2398	itcl::body Rappture::FlowvisViewer::BuildCameraTab {} {
[1375]	2399	set inner [$itk_component(main) insert end \
	2400	-title "Camera Settings" \
	2401	-icon [Rappture::icon camera]]
	2402	$inner configure -borderwidth 4
[1349]	2403
[3533]	2404	label $inner.view_l -text "view" -font "Arial 9"
	2405	set f [frame $inner.view]
	2406	foreach side { front back left right top bottom } {
	2407	button $f.$side -image [Rappture::icon view$side] \
	2408	-command [itcl::code $this SetOrientation $side]
	2409	Rappture::Tooltip::for $f.$side "Change the view to $side"
	2410	pack $f.$side -side left
[3492]	2411	}
[3533]	2412
[3492]	2413	blt::table $inner \
[3533]	2414	0,0 $inner.view_l -anchor e -pady 2 \
	2415	0,1 $inner.view -anchor w -pady 2
[3492]	2416
[3533]	2417	set row 1
	2418	set labels { qw qx qy qz xpan ypan zoom }
[1349]	2419	foreach tag $labels {
[1694]	2420	label $inner.${tag}label -text $tag -font "Arial 9"
	2421	entry $inner.${tag} -font "Arial 9" -bg white \
	2422	-textvariable [itcl::scope _settings($this-$tag)]
[4848]	2423	bind $inner.${tag} <KeyPress-Return> \
	2424	[itcl::code $this camera set ${tag}]
[1694]	2425	blt::table $inner \
	2426	$row,0 $inner.${tag}label -anchor e -pady 2 \
	2427	$row,1 $inner.${tag} -anchor w -pady 2
[1375]	2428	blt::table configure $inner r$row -resize none
[1694]	2429	incr row
[1349]	2430	}
[3533]	2431
[4848]	2432	blt::table configure $inner c* r* -resize none
[1373]	2433	blt::table configure $inner c2 -resize expand
[1375]	2434	blt::table configure $inner r$row -resize expand
[1349]	2435	}
	2436
[1442]	2437	itcl::body Rappture::FlowvisViewer::GetFlowInfo { w } {
[1444]	2438	set flowobj ""
[1442]	2439	foreach key [array names _obj2flow] {
[1694]	2440	set flowobj $_obj2flow($key)
	2441	break
[1442]	2442	}
[1444]	2443	if { $flowobj == "" } {
[1694]	2444	return
[1444]	2445	}
[1442]	2446	if { [winfo exists $w.frame] } {
[1694]	2447	destroy $w.frame
[1442]	2448	}
	2449	set inner [frame $w.frame]
	2450	blt::table $w \
[3441]	2451	5,0 $inner -fill both -cspan 2 -anchor nw
[1442]	2452	array set hints [$flowobj hints]
	2453	checkbutton $inner.showstreams -text "Streams Plane" \
[1694]	2454	-variable [itcl::scope _settings($this-streams)] \
	2455	-command [itcl::code $this streams $key $hints(name)] \
	2456	-font "Arial 9"
[1449]	2457	Rappture::Tooltip::for $inner.showstreams $hints(description)
[1491]	2458
	2459	checkbutton $inner.showarrows -text "Arrows" \
[1694]	2460	-variable [itcl::scope _settings($this-arrows)] \
	2461	-command [itcl::code $this arrows $key $hints(name)] \
	2462	-font "Arial 9"
[1491]	2463
[1694]	2464	label $inner.particles -text "Particles" -font "Arial 9 bold"
	2465	label $inner.boxes -text "Boxes" -font "Arial 9 bold"
[1442]	2466
	2467	blt::table $inner \
[1694]	2468	1,0 $inner.showstreams -anchor w \
	2469	2,0 $inner.showarrows -anchor w
[1491]	2470	blt::table configure $inner c0 c1 -resize none
	2471	blt::table configure $inner c2 -resize expand
[1442]	2472
[1491]	2473	set row 3
[1442]	2474	set particles [$flowobj particles]
	2475	if { [llength $particles] > 0 } {
[1694]	2476	blt::table $inner $row,0 $inner.particles -anchor w
	2477	incr row
[1442]	2478	}
	2479	foreach part $particles {
[1694]	2480	array unset info
	2481	array set info $part
	2482	set name $info(name)
	2483	if { ![info exists _settings($this-particles-$name)] } {
	2484	set _settings($this-particles-$name) $info(hide)
	2485	}
	2486	checkbutton $inner.part$row -text $info(label) \
	2487	-variable [itcl::scope _settings($this-particles-$name)] \
	2488	-onvalue 0 -offvalue 1 \
	2489	-command [itcl::code $this particles $key $name] \
	2490	-font "Arial 9"
	2491	Rappture::Tooltip::for $inner.part$row $info(description)
	2492	blt::table $inner $row,0 $inner.part$row -anchor w
	2493	if { !$_settings($this-particles-$name) } {
	2494	$inner.part$row select
	2495	}
	2496	incr row
[1442]	2497	}
	2498	set boxes [$flowobj boxes]
	2499	if { [llength $boxes] > 0 } {
[1694]	2500	blt::table $inner $row,0 $inner.boxes -anchor w
	2501	incr row
[1442]	2502	}
	2503	foreach box $boxes {
[1694]	2504	array unset info
	2505	array set info $box
	2506	set name $info(name)
	2507	if { ![info exists _settings($this-box-$name)] } {
	2508	set _settings($this-box-$name) $info(hide)
	2509	}
	2510	checkbutton $inner.box$row -text $info(label) \
	2511	-variable [itcl::scope _settings($this-box-$name)] \
	2512	-onvalue 0 -offvalue 1 \
	2513	-command [itcl::code $this box $key $name] \
	2514	-font "Arial 9"
	2515	Rappture::Tooltip::for $inner.box$row $info(description)
	2516	blt::table $inner $row,0 $inner.box$row -anchor w
	2517	if { !$_settings($this-box-$name) } {
	2518	$inner.box$row select
	2519	}
	2520	incr row
[1442]	2521	}
	2522	blt::table configure $inner r* -resize none
	2523	blt::table configure $inner r$row -resize expand
	2524	blt::table configure $inner c3 -resize expand
	2525	event generate [winfo parent [winfo parent $w]] <Configure>
	2526	}
	2527
	2528	itcl::body Rappture::FlowvisViewer::particles { tag name } {
	2529	set bool $_settings($this-particles-$name)
[1448]	2530	SendCmd "$tag particles configure {$name} -hide $bool"
[1442]	2531	}
	2532
	2533	itcl::body Rappture::FlowvisViewer::box { tag name } {
	2534	set bool $_settings($this-box-$name)
[1448]	2535	SendCmd "$tag box configure {$name} -hide $bool"
[1442]	2536	}
	2537
	2538	itcl::body Rappture::FlowvisViewer::streams { tag name } {
	2539	set bool $_settings($this-streams)
	2540	SendCmd "$tag configure -slice $bool"
	2541	}
	2542
[1491]	2543	itcl::body Rappture::FlowvisViewer::arrows { tag name } {
	2544	set bool $_settings($this-arrows)
[2965]	2545	SendCmd "$tag configure -arrows $bool"
[1491]	2546	}
	2547
[1442]	2548	# ----------------------------------------------------------------------
	2549	# USAGE: Slice move x\|y\|z <newval>
	2550	#
	2551	# Called automatically when the user drags the slider to move the
	2552	# cut plane that slices 3D data. Gets the current value from the
	2553	# slider and moves the cut plane to the appropriate point in the
	2554	# data set.
	2555	# ----------------------------------------------------------------------
	2556	itcl::body Rappture::FlowvisViewer::Slice {option args} {
	2557	switch -- $option {
	2558	move {
	2559	if {[llength $args] != 2} {
	2560	error "wrong # args: should be \"Slice move x\|y\|z newval\""
	2561	}
	2562	set axis [lindex $args 0]
	2563	set newval [lindex $args 1]
	2564	set newpos [expr {0.01*$newval}]
	2565
	2566	# show the current value in the readout
	2567
	2568	set ids [CurrentVolumeIds -cutplanes]
	2569	SendCmd "cutplane position $newpos $axis $ids"
	2570	}
	2571	default {
	2572	error "bad option \"$option\": should be axis, move, or volume"
	2573	}
	2574	}
	2575	}
	2576
	2577	# ----------------------------------------------------------------------
	2578	# USAGE: SlicerTip <axis>
	2579	#
	2580	# Used internally to generate a tooltip for the x/y/z slicer controls.
	2581	# Returns a message that includes the current slicer value.
	2582	# ----------------------------------------------------------------------
	2583	itcl::body Rappture::FlowvisViewer::SlicerTip {axis} {
	2584	set val [$itk_component(${axis}CutScale) get]
[4848]	2585	# set val [expr {0.01*($val-50)
	2586	# *($_limits(${axis}max)-$_limits(${axis}min))
	2587	# + 0.5*($_limits(${axis}max)+$_limits(${axis}min))}]
[1442]	2588	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
	2589	}
	2590
[1491]	2591	itcl::body Rappture::FlowvisViewer::Resize {} {
[3396]	2592	$_arcball resize $_width $_height
[3478]	2593	SendCmd "screen size $_width $_height"
[1448]	2594	set _resizePending 0
[1442]	2595	}
	2596
	2597	itcl::body Rappture::FlowvisViewer::EventuallyResize { w h } {
[1448]	2598	set _width $w
	2599	set _height $h
[3362]	2600	$_arcball resize $w $h
[1448]	2601	if { !$_resizePending } {
[1694]	2602	$_dispatcher event -after 200 !resize
	2603	set _resizePending 1
[1442]	2604	}
	2605	}
	2606
	2607	itcl::body Rappture::FlowvisViewer::EventuallyResizeLegend {} {
[1448]	2608	if { !$_resizeLegendPending } {
[1694]	2609	$_dispatcher event -after 100 !legend
	2610	set _resizeLegendPending 1
[1448]	2611	}
[1442]	2612	}
	2613
[1471]	2614	itcl::body Rappture::FlowvisViewer::EventuallyGoto { nSteps } {
	2615	set _flow(goto) $nSteps
	2616	if { !$_gotoPending } {
[1694]	2617	$_dispatcher event -after 1000 !goto
	2618	set _gotoPending 1
[1471]	2619	}
	2620	}
	2621
[1349]	2622	# camera --
	2623	itcl::body Rappture::FlowvisViewer::camera {option args} {
	2624	switch -- $option {
[1694]	2625	"show" {
	2626	puts [array get _view]
	2627	}
	2628	"set" {
[4848]	2629	set who [lindex $args 0]
	2630	set x $_settings($this-$who)
[1694]	2631	set code [catch { string is double $x } result]
	2632	if { $code != 0 \|\| !$result } {
[4848]	2633	set _settings($this-$who) $_view($who)
[1694]	2634	return
	2635	}
[4848]	2636	switch -- $who {
	2637	"xpan" - "ypan" {
	2638	set _view($who) $_settings($this-$who)
[1694]	2639	PanCamera
	2640	}
[4848]	2641	"qx" - "qy" - "qz" - "qw" {
	2642	set _view($who) $_settings($this-$who)
	2643	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
[3362]	2644	$_arcball quaternion $q
	2645	SendCmd "camera orient $q"
	2646	}
[4848]	2647	"zoom" {
	2648	set _view($who) $_settings($this-$who)
	2649	SendCmd "camera zoom $_view(zoom)"
[1694]	2650	}
	2651	}
	2652	}
[1349]	2653	}
	2654	}
[1355]	2655
[1442]	2656	itcl::body Rappture::FlowvisViewer::FlowCmd { dataobj comp nbytes extents } {
	2657	set tag "$dataobj-$comp"
	2658	if { ![info exists _obj2flow($tag)] } {
[1694]	2659	append cmd "flow add $tag\n"
	2660	append cmd "$tag data follows $nbytes $extents\n"
	2661	return $cmd
[1442]	2662	}
	2663	set flowobj $_obj2flow($tag)
	2664	if { $flowobj == "" } {
[1694]	2665	puts stderr "no flowobj"
	2666	return ""
[1442]	2667	}
	2668	set cmd {}
	2669	append cmd "if {\[flow exists $tag\]} {flow delete $tag}\n"
	2670	array set info [$flowobj hints]
[1496]	2671	set _settings($this-volume) $info(volume)
	2672	set _settings($this-outline) $info(outline)
	2673	set _settings($this-arrows) $info(arrows)
	2674	set _settings($this-duration) $info(duration)
	2675	$itk_component(speed) value $info(speed)
[1514]	2676	append cmd "flow add $tag"
	2677	append cmd " -position $info(position)"
	2678	append cmd " -axis $info(axis)"
	2679	append cmd " -volume $info(volume)"
	2680	append cmd " -outline $info(outline)"
	2681	append cmd " -slice $info(streams)"
	2682	append cmd " -arrows $info(arrows)\n"
[1442]	2683	foreach part [$flowobj particles] {
[1694]	2684	array unset info
	2685	array set info $part
	2686	set color [Color2RGB $info(color)]
	2687	append cmd "$tag particles add $info(name)"
	2688	append cmd " -position $info(position)"
	2689	append cmd " -hide $info(hide)"
	2690	append cmd " -axis $info(axis)"
	2691	append cmd " -color {$color}"
	2692	append cmd " -size $info(size)\n"
[1442]	2693	}
	2694	foreach box [$flowobj boxes] {
[1694]	2695	array unset info
	2696	set info(corner1) ""
	2697	set info(corner2) ""
	2698	array set info $box
	2699	if { $info(corner1) == "" \|\| $info(corner2) == "" } {
	2700	continue
	2701	}
	2702	set color [Color2RGB $info(color)]
	2703	append cmd "$tag box add $info(name)"
[1514]	2704	append cmd " -color {$color}"
[1694]	2705	append cmd " -hide $info(hide)"
[1514]	2706	append cmd " -linewidth $info(linewidth) "
[1694]	2707	append cmd " -corner1 {$info(corner1)} "
[2547]	2708	append cmd " -corner2 {$info(corner2)}\n"
[1442]	2709	}
	2710	append cmd "$tag data follows $nbytes $extents\n"
	2711	return $cmd
	2712	}
	2713
	2714
	2715	#
	2716	# flow --
	2717	#
	2718	# Called when the user clicks on the stop or play buttons
	2719	# for flow visualization.
	2720	#
[1694]	2721	# $this flow play
	2722	# $this flow stop
	2723	# $this flow toggle
	2724	# $this flow reset
	2725	# $this flow pause
	2726	# $this flow next
[1442]	2727	#
[1448]	2728	itcl::body Rappture::FlowvisViewer::flow { args } {
	2729	set option [lindex $args 0]
[1442]	2730	switch -- $option {
[1694]	2731	"goto2" {
	2732	puts stderr "actually sending \"flow goto $_flow(goto)\""
	2733	SendCmd "flow goto $_flow(goto)"
	2734	set _gotoPending 0
	2735	}
	2736	"goto" {
	2737	puts stderr "flow goto to $_settings($this-currenttime)"
	2738	# Figure out how many steps to the current time based upon
	2739	# the speed and duration.
	2740	set current $_settings($this-currenttime)
	2741	set speed [$itk_component(speed) value]
	2742	set time [str2millisecs $_settings($this-duration)]
	2743	$itk_component(dial) configure -max $time
	2744	set delay [expr int(round(500.0/$speed))]
	2745	set timePerStep [expr {double($time) / $delay}]
	2746	set nSteps [expr {int(ceil($current/$timePerStep))}]
	2747	EventuallyGoto $nSteps
	2748	}
	2749	"speed" {
	2750	set speed [$itk_component(speed) value]
	2751	set _flow(delay) [expr int(round(500.0/$speed))]
	2752	}
	2753	"duration" {
	2754	set max [str2millisecs $_settings($this-duration)]
	2755	if { $max < 0 } {
	2756	bell
	2757	return
	2758	}
	2759	set _flow(duration) $max
	2760	set _settings($this-duration) [millisecs2str $max]
	2761	$itk_component(dial) configure -max $max
	2762	}
	2763	"off" {
	2764	set _flow(state) 0
	2765	$_dispatcher cancel !play
	2766	$itk_component(play) deselect
	2767	}
	2768	"on" {
	2769	flow speed
	2770	flow duration
	2771	set _flow(state) 1
	2772	set _settings($this-currenttime) 0
	2773	$itk_component(play) select
	2774	}
	2775	"stop" {
	2776	if { $_flow(state) } {
	2777	flow off
	2778	flow reset
	2779	}
	2780	}
	2781	"pause" {
	2782	if { $_flow(state) } {
	2783	flow off
	2784	}
	2785	}
	2786	"play" {
	2787	# If the flow is currently off, then restart it.
	2788	if { !$_flow(state) } {
	2789	flow on
	2790	# If we're at the end of the flow, reset the flow.
	2791	set _settings($this-currenttime) \
	2792	[expr {$_settings($this-currenttime) + $_flow(delay)}]
	2793	if { $_settings($this-currenttime) >= $_flow(duration) } {
	2794	set _settings($this-step) 1
	2795	SendCmd "flow reset"
	2796	}
	2797	flow next
	2798	}
	2799	}
	2800	"toggle" {
	2801	if { $_settings($this-play) } {
	2802	flow play
	2803	} else {
	2804	flow pause
	2805	}
	2806	}
	2807	"reset" {
	2808	set _settings($this-currenttime) 0
	2809	SendCmd "flow reset"
	2810	}
	2811	"next" {
[1929]	2812	if { ![winfo viewable $itk_component(3dview)] } {
[1694]	2813	flow stop
	2814	return
	2815	}
	2816	set _settings($this-currenttime) \
	2817	[expr {$_settings($this-currenttime) + $_flow(delay)}]
	2818	if { $_settings($this-currenttime) >= $_flow(duration) } {
	2819	if { !$_settings($this-loop) } {
	2820	flow off
	2821	return
	2822	}
	2823	flow reset
	2824	} else {
	2825	SendCmd "flow next"
	2826	}
	2827	$_dispatcher event -after $_flow(delay) !play
	2828	}
	2829	default {
	2830	error "bad option \"$option\": should be play, stop, toggle, or reset."
	2831	}
[1442]	2832	}
	2833	}
	2834
[1355]	2835	itcl::body Rappture::FlowvisViewer::WaitIcon { option widget } {
	2836	switch -- $option {
[1694]	2837	"start" {
	2838	$_dispatcher dispatch $this !waiticon \
	2839	"[itcl::code $this WaitIcon "next" $widget] ; list"
	2840	set _icon 0
	2841	$widget configure -image [Rappture::icon bigroller${_icon}]
	2842	$_dispatcher event -after 100 !waiticon
	2843	}
	2844	"next" {
	2845	incr _icon
	2846	if { $_icon >= 8 } {
	2847	set _icon 0
	2848	}
	2849	$widget configure -image [Rappture::icon bigroller${_icon}]
	2850	$_dispatcher event -after 100 !waiticon
	2851	}
	2852	"stop" {
	2853	$_dispatcher cancel !waiticon
	2854	}
[1355]	2855	}
	2856	}
	2857
[1506]	2858	itcl::body Rappture::FlowvisViewer::GetPngImage { widget width height } {
[1498]	2859	set token "print[incr _nextToken]"
[1506]	2860	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
[1498]	2861	set $var ""
	2862
	2863	# Setup an automatic timeout procedure.
	2864	$_dispatcher dispatch $this !pngtimeout "set $var {} ; list"
	2865
[1506]	2866	set popup .flowvisviewerprint
[1498]	2867	if {![winfo exists $popup]} {
[1694]	2868	Rappture::Balloon $popup -title "Generating file..."
	2869	set inner [$popup component inner]
	2870	label $inner.title -text "Generating hardcopy." -font "Arial 10 bold"
	2871	label $inner.please -text "This may take a minute." -font "Arial 10"
	2872	label $inner.icon -image [Rappture::icon bigroller0]
	2873	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
	2874	-command [list set $var ""]
	2875	blt::table $inner \
[3441]	2876	0,0 $inner.title -cspan 2 \
[1694]	2877	1,0 $inner.please -anchor w \
	2878	1,1 $inner.icon -anchor e \
[3441]	2879	2,0 $inner.cancel -cspan 2
[1694]	2880	blt::table configure $inner r0 -pady 4
	2881	blt::table configure $inner r2 -pady 4
	2882	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
[1498]	2883	} else {
[1694]	2884	set inner [$popup component inner]
[1498]	2885	}
	2886
	2887	$_dispatcher event -after 60000 !pngtimeout
	2888	WaitIcon start $inner.icon
[2606]	2889	grab set $inner
[1498]	2890	focus $inner.cancel
	2891
	2892	SendCmd "print $token $width $height"
	2893
	2894	$popup activate $widget below
[3555]	2895	update idletasks
[1498]	2896	update
	2897	# We wait here for either
	2898	# 1) the png to be delivered or
	2899	# 2) timeout or
	2900	# 3) user cancels the operation.
	2901	tkwait variable $var
	2902
	2903	# Clean up.
	2904	$_dispatcher cancel !pngtimeout
	2905	WaitIcon stop $inner.icon
	2906	grab release $inner
	2907	$popup deactivate
	2908	update
	2909
	2910	if { $_hardcopy($this-$token) != "" } {
[1694]	2911	return [list .png $_hardcopy($this-$token)]
[1498]	2912	}
	2913	return ""
	2914	}
	2915
[1514]	2916	itcl::body Rappture::FlowvisViewer::GetMovie { widget w h } {
[1442]	2917	set token "movie[incr _nextToken]"
[1506]	2918	set var ::Rappture::FlowvisViewer::_hardcopy($this-$token)
[1355]	2919	set $var ""
	2920
	2921	# Setup an automatic timeout procedure.
	2922	$_dispatcher dispatch $this !movietimeout "set $var {} ; list"
[1498]	2923	set popup .flowvisviewermovie
	2924	if {![winfo exists $popup]} {
[1694]	2925	Rappture::Balloon $popup -title "Generating movie..."
	2926	set inner [$popup component inner]
	2927	label $inner.title -text "Generating movie for download" \
	2928	-font "Arial 10 bold"
	2929	label $inner.please -text "This may take a few minutes." \
	2930	-font "Arial 10"
	2931	label $inner.icon -image [Rappture::icon bigroller0]
	2932	button $inner.cancel -text "Cancel" -font "Arial 10 bold" \
	2933	-command [list set $var ""]
	2934	blt::table $inner \
[3441]	2935	0,0 $inner.title -cspan 2 \
[1694]	2936	1,0 $inner.please -anchor w \
	2937	1,1 $inner.icon -anchor e \
[3441]	2938	2,0 $inner.cancel -cspan 2
[1694]	2939	blt::table configure $inner r0 -pady 4
	2940	blt::table configure $inner r2 -pady 4
	2941	bind $inner.cancel <KeyPress-Return> [list $inner.cancel invoke]
[1498]	2942	} else {
[1694]	2943	set inner [$popup component inner]
[1498]	2944	}
[3555]	2945	update
[1514]	2946	# Timeout is set to 10 minutes.
	2947	$_dispatcher event -after 600000 !movietimeout
[1355]	2948	WaitIcon start $inner.icon
[2606]	2949	grab set $inner
[1355]	2950	focus $inner.cancel
[1449]	2951
	2952	flow duration
	2953	flow speed
[1506]	2954	set nframes [expr round($_flow(duration) / $_flow(delay))]
[1449]	2955	set framerate [expr 1000.0 / $_flow(delay)]
[1514]	2956
	2957	# These are specific to MPEG1 video generation
[1506]	2958	set framerate 25.0
[1514]	2959	set bitrate 6.0e+6
[1355]	2960
[1506]	2961	set start [clock seconds]
[1514]	2962	SendCmd "flow video $token -width $w -height $h -numframes $nframes "
[1355]	2963
	2964	$popup activate $widget below
[3555]	2965	update idletasks
[1355]	2966	update
[1514]	2967	# We wait here until
	2968	# 1. the movie is delivered or
	2969	# 2. we've timed out or
	2970	# 3. the user has canceled the operation.b
[1355]	2971	tkwait variable $var
	2972
[1514]	2973	puts stderr "Video generated in [expr [clock seconds] - $start] seconds."
	2974
[1355]	2975	# Clean up.
[1506]	2976	$_dispatcher cancel !movietimeout
[1355]	2977	WaitIcon stop $inner.icon
	2978	grab release $inner
	2979	$popup deactivate
	2980	destroy $popup
	2981	update
	2982
[1514]	2983	# This will both cancel the movie generation (if it hasn't already
	2984	# completed) and reset the flow.
	2985	SendCmd "flow reset"
[1442]	2986	if { $_hardcopy($this-$token) != "" } {
[1694]	2987	return [list .mpg $_hardcopy($this-$token)]
[1355]	2988	}
	2989	return ""
[1357]	2990	}
[1377]	2991
[1471]	2992	itcl::body Rappture::FlowvisViewer::str2millisecs { value } {
[1473]	2993	set parts [split $value :]
	2994	set secs 0
	2995	set mins 0
	2996	if { [llength $parts] == 1 } {
[1694]	2997	scan [lindex $parts 0] "%d" secs
[1471]	2998	} else {
[1694]	2999	scan [lindex $parts 1] "%d" secs
	3000	scan [lindex $parts 0] "%d" mins
[1471]	3001	}
[1473]	3002	set ms [expr {(($mins * 60) + $secs) * 1000.0}]
	3003	if { $ms > 600000.0 } {
[1694]	3004	set ms 600000.0
[1473]	3005	}
	3006	if { $ms == 0.0 } {
[1694]	3007	set ms 60000.0
[1473]	3008	}
	3009	return $ms
[1471]	3010	}
	3011
	3012	itcl::body Rappture::FlowvisViewer::millisecs2str { value } {
	3013	set min [expr floor($value / 60000.0)]
	3014	set sec [expr ($value - ($min*60000.0)) / 1000.0]
	3015	return [format %02d:%02d [expr round($min)] [expr round($sec)]]
	3016	}
	3017
[3533]	3018	itcl::body Rappture::FlowvisViewer::SetOrientation { side } {
	3019	array set positions {
	3020	front "1 0 0 0"
	3021	back "0 0 1 0"
	3022	left "0.707107 0 -0.707107 0"
	3023	right "0.707107 0 0.707107 0"
	3024	top "0.707107 -0.707107 0 0"
	3025	bottom "0.707107 0.707107 0 0"
[3492]	3026	}
[4848]	3027	foreach name { qw qx qy qz } value $positions($side) {
[3533]	3028	set _view($name) $value
	3029	}
[4848]	3030	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
[3492]	3031	$_arcball quaternion $q
	3032	SendCmd "camera orient $q"
	3033	SendCmd "camera reset"
[4848]	3034	set _view(xpan) 0.0
	3035	set _view(ypan) 0.0
	3036	set _view(zoom) 1.0
	3037	set _settings($this-xpan) $_view(xpan)
	3038	set _settings($this-ypan) $_view(ypan)
	3039	set _settings($this-zoom) $_view(zoom)
[3492]	3040	}

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