Context Navigation

source: tags/1.3.5/gui/scripts/vtkisosurfaceviewer.tcl @ 4754

Last change on this file since 4754 was 4754, checked in by ldelgass, 10 years ago
merge r4668:4669 from trunk
File size: 89.9 KB

Rev	Line
[3330]	1	# -- mode: tcl; indent-tabs-mode: nil --
	2	# ----------------------------------------------------------------------
[4351]	3	# COMPONENT: vtkisosurfaceviewer - Vtk 3D contour object viewer
[3330]	4	#
	5	# It connects to the Vtk server running on a rendering farm,
	6	# transmits data, and displays the results.
	7	# ======================================================================
	8	# AUTHOR: Michael McLennan, Purdue University
	9	# Copyright (c) 2004-2005 Purdue Research Foundation
	10	#
	11	# See the file "license.terms" for information on usage and
	12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
	13	# ======================================================================
	14	package require Itk
	15	package require BLT
	16	#package require Img
	17
	18	option add *VtkIsosurfaceViewer.width 4i widgetDefault
	19	option add VtkIsosurfaceViewercursor crosshair widgetDefault
	20	option add *VtkIsosurfaceViewer.height 4i widgetDefault
	21	option add *VtkIsosurfaceViewer.foreground black widgetDefault
	22	option add *VtkIsosurfaceViewer.controlBackground gray widgetDefault
	23	option add *VtkIsosurfaceViewer.controlDarkBackground #999999 widgetDefault
	24	option add *VtkIsosurfaceViewer.plotBackground black widgetDefault
	25	option add *VtkIsosurfaceViewer.plotForeground white widgetDefault
	26	option add *VtkIsosurfaceViewer.font \
	27	--helvetica-medium-r-normal--12-* widgetDefault
	28
	29	# must use this name -- plugs into Rappture::resources::load
	30	proc VtkIsosurfaceViewer_init_resources {} {
	31	Rappture::resources::register \
	32	vtkvis_server Rappture::VtkIsosurfaceViewer::SetServerList
	33	}
	34
	35	itcl::class Rappture::VtkIsosurfaceViewer {
	36	inherit Rappture::VisViewer
	37
	38	itk_option define -plotforeground plotForeground Foreground ""
	39	itk_option define -plotbackground plotBackground Background ""
	40
	41	constructor { hostlist args } {
	42	Rappture::VisViewer::constructor $hostlist
	43	} {
	44	# defined below
	45	}
	46	destructor {
	47	# defined below
	48	}
	49	public proc SetServerList { namelist } {
	50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
	51	}
	52	public method add {dataobj {settings ""}}
	53	public method camera {option args}
	54	public method delete {args}
	55	public method disconnect {}
	56	public method download {option args}
	57	public method get {args}
	58	public method isconnected {}
	59	public method parameters {title args} {
	60	# do nothing
	61	}
	62	public method scale {args}
	63
[4752]	64	# The following methods are only used by this class.
[3330]	65
[4752]	66	private method AdjustSetting {what {value ""}}
[3330]	67	private method BuildAxisTab {}
	68	private method BuildCameraTab {}
[3514]	69	private method BuildColormap { name }
[3330]	70	private method BuildCutplaneTab {}
	71	private method BuildDownloadPopup { widget command }
	72	private method BuildIsosurfaceTab {}
[3879]	73	private method Combo { option }
[4752]	74	private method Connect {}
	75	private method CurrentDatasets {args}
	76	private method Disconnect {}
	77	private method DoChangeContourLevels {}
	78	private method DoResize {}
	79	private method DoRotate {}
[3442]	80	private method DrawLegend {}
[3330]	81	private method EnterLegend { x y }
[4752]	82	private method EventuallyChangeContourLevels {}
	83	private method EventuallyRequestLegend {}
[3330]	84	private method EventuallyResize { w h }
	85	private method EventuallyRotate { q }
	86	private method EventuallySetCutplane { axis args }
[4752]	87	private method GenerateContourList {}
[3330]	88	private method GetImage { args }
	89	private method GetVtkData { args }
[4752]	90	private method InitSettings { args }
[3330]	91	private method IsValidObject { dataobj }
	92	private method LeaveLegend {}
	93	private method MotionLegend { x y }
[4752]	94	private method Pan {option x y}
[3330]	95	private method PanCamera {}
[4752]	96	private method Pick {x y}
	97	private method Rebuild {}
	98	private method ReceiveDataset { args }
	99	private method ReceiveImage { args }
	100	private method ReceiveLegend { colormap title vmin vmax size }
[3330]	101	private method RequestLegend {}
[4752]	102	private method Rotate {option x y}
	103	private method SetCurrentColormap { color }
	104	private method SetCurrentFieldName { dataobj }
[3330]	105	private method SetLegendTip { x y }
[4752]	106	private method SetObjectStyle { dataobj comp }
[3517]	107	private method SetOrientation { side }
[4752]	108	private method Slice {option args}
	109	private method Zoom {option}
	110	private method ViewToQuaternion {} {
	111	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
	112	}
[3330]	113
	114	private variable _arcball ""
	115
	116	private variable _dlist "" ; # list of data objects
	117	private variable _obj2datasets
	118	private variable _obj2ovride ; # maps dataobj => style override
	119	private variable _datasets ; # contains all the dataobj-component
	120	; # datasets in the server
	121	private variable _colormaps ; # contains all the colormaps
	122	; # in the server.
	123	# The name of the current colormap used. The colormap is global to all
	124	# heightmaps displayed.
[3623]	125	private variable _currentColormap ""
	126	private variable _currentNumContours -1
[3330]	127
	128	private variable _dataset2style ;# maps dataobj-component to transfunc
	129
	130	private variable _click ; # info used for rotate operations
	131	private variable _limits ; # autoscale min/max for all axes
	132	private variable _view ; # view params for 3D view
	133	private variable _settings
	134	private variable _style; # Array of current component styles.
[3514]	135	private variable _changed
[3330]	136	private variable _initialStyle; # Array of initial component styles.
	137	private variable _reset 1; # indicates if camera needs to be reset
	138	# to starting position.
	139
	140	private variable _first "" ; # This is the topmost dataset.
	141	private variable _start 0
	142	private variable _title ""
[3442]	143	private variable _isolines
[4752]	144	private variable _contourList
	145	private variable _currentLimits ""
	146	private variable _widget
[3330]	147
	148	common _downloadPopup; # download options from popup
	149	private common _hardcopy
	150	private variable _width 0
	151	private variable _height 0
	152	private variable _resizePending 0
	153	private variable _rotatePending 0
	154	private variable _cutplanePending 0
	155	private variable _legendPending 0
	156	private variable _field ""
[4186]	157	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
[3330]	158	private variable _fieldNames {}
	159	private variable _fields
[3409]	160	private variable _curFldName ""
	161	private variable _curFldLabel ""
[3330]	162	}
	163
	164	itk::usual VtkIsosurfaceViewer {
	165	keep -background -foreground -cursor -font
	166	keep -plotbackground -plotforeground
	167	}
	168
	169	# ----------------------------------------------------------------------
	170	# CONSTRUCTOR
	171	# ----------------------------------------------------------------------
	172	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
	173	package require vtk
	174	set _serverType "vtkvis"
	175
	176	# Rebuild event
	177	$_dispatcher register !rebuild
	178	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
	179
	180	# Resize event
	181	$_dispatcher register !resize
	182	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
	183
	184	# Rotate event
	185	$_dispatcher register !rotate
	186	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
	187
	188	# Legend event
	189	$_dispatcher register !legend
	190	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
	191
[4752]	192	# Contour levels event
	193	$_dispatcher register !contours
	194	$_dispatcher dispatch $this !contours \
	195	"[itcl::code $this DoChangeContourLevels]; list"
	196
[3330]	197	# X-Cutplane event
	198	$_dispatcher register !xcutplane
	199	$_dispatcher dispatch $this !xcutplane \
[4201]	200	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
[3330]	201
	202	# Y-Cutplane event
	203	$_dispatcher register !ycutplane
	204	$_dispatcher dispatch $this !ycutplane \
[4201]	205	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
[3330]	206
	207	# Z-Cutplane event
	208	$_dispatcher register !zcutplane
	209	$_dispatcher dispatch $this !zcutplane \
[4201]	210	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
[3330]	211
	212	#
	213	# Populate parser with commands handle incoming requests
	214	#
	215	$_parser alias image [itcl::code $this ReceiveImage]
	216	$_parser alias dataset [itcl::code $this ReceiveDataset]
	217	$_parser alias legend [itcl::code $this ReceiveLegend]
	218
	219	# Initialize the view to some default parameters.
	220	array set _view {
[4752]	221	-ortho 0
	222	-qw 0.853553
	223	-qx -0.353553
	224	-qy 0.353553
	225	-qz 0.146447
	226	-xpan 0
	227	-ypan 0
	228	-zoom 1.0
[3330]	229	}
	230	set _arcball [blt::arcball create 100 100]
[4752]	231	$_arcball quaternion [ViewToQuaternion]
[3330]	232
[4752]	233	array set _contourList {
	234	numLevels 10
	235	reqValues ""
	236	updatePending 0
	237	values ""
	238	}
[4201]	239	array set _settings {
[4351]	240	-axesvisible 1
[4752]	241	-axislabels 1
	242	-axisminorticks 1
	243	-axismode "static"
	244	-background black
	245	-colormap BCGYR
	246	-colormapvisible 1
[4201]	247	-cutplaneedges 0
	248	-cutplanelighting 1
[4752]	249	-cutplaneopacity 1.0
[4201]	250	-cutplanepreinterp 1
	251	-cutplanesvisible 0
	252	-cutplanewireframe 0
[4752]	253	-field "Default"
	254	-isolinecolor white
[4201]	255	-isosurfaceedges 0
	256	-isosurfacelighting 1
[4752]	257	-isosurfaceopacity 0.6
[4201]	258	-isosurfacevisible 1
	259	-isosurfacewireframe 0
	260	-legendvisible 1
	261	-numcontours 10
[4752]	262	-outline 0
[4201]	263	-xcutplaneposition 50
	264	-xcutplanevisible 1
[4752]	265	-xgrid 0
[4201]	266	-ycutplaneposition 50
	267	-ycutplanevisible 1
[4752]	268	-ygrid 0
[4201]	269	-zcutplaneposition 50
	270	-zcutplanevisible 1
[4752]	271	-zgrid 0
[4201]	272	}
[3514]	273	array set _changed {
[4752]	274	-colormap 0
[4201]	275	-isosurfaceopacity 0
[4752]	276	-cutplaneopacity 0
[4201]	277	-numcontours 0
[3514]	278	}
[4752]	279	array set _widget {
	280	-isosurfaceopacity 60
	281	-cutplaneopacity 100
	282	}
[3330]	283
	284	itk_component add view {
	285	canvas $itk_component(plotarea).view \
	286	-highlightthickness 0 -borderwidth 0
	287	} {
	288	usual
	289	ignore -highlightthickness -borderwidth -background
	290	}
	291
	292	itk_component add fieldmenu {
	293	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
[4201]	294	-tearoff 0
[3330]	295	} {
	296	usual
	297	ignore -background -foreground -relief -tearoff
	298	}
	299	set c $itk_component(view)
	300	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
	301	bind $c <4> [itcl::code $this Zoom in 0.25]
	302	bind $c <5> [itcl::code $this Zoom out 0.25]
	303	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
	304	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
	305	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
	306	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
	307	bind $c <Enter> "focus %W"
	308	bind $c <Control-F1> [itcl::code $this ToggleConsole]
	309
	310	# Fix the scrollregion in case we go off screen
	311	$c configure -scrollregion [$c bbox all]
	312
	313	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
	314	set _map(cwidth) -1
	315	set _map(cheight) -1
	316	set _map(zoom) 1.0
	317	set _map(original) ""
	318
	319	set f [$itk_component(main) component controls]
	320	itk_component add reset {
	321	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
	322	-highlightthickness 0 \
	323	-image [Rappture::icon reset-view] \
	324	-command [itcl::code $this Zoom reset]
	325	} {
	326	usual
	327	ignore -highlightthickness
	328	}
	329	pack $itk_component(reset) -side top -padx 2 -pady 2
[3523]	330	Rappture::Tooltip::for $itk_component(reset) \
	331	"Reset the view to the default zoom level"
[3330]	332
	333	itk_component add zoomin {
	334	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
	335	-highlightthickness 0 \
	336	-image [Rappture::icon zoom-in] \
	337	-command [itcl::code $this Zoom in]
	338	} {
	339	usual
	340	ignore -highlightthickness
	341	}
	342	pack $itk_component(zoomin) -side top -padx 2 -pady 2
	343	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
	344
	345	itk_component add zoomout {
	346	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
	347	-highlightthickness 0 \
	348	-image [Rappture::icon zoom-out] \
	349	-command [itcl::code $this Zoom out]
	350	} {
	351	usual
	352	ignore -highlightthickness
	353	}
	354	pack $itk_component(zoomout) -side top -padx 2 -pady 2
	355	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
	356
	357	itk_component add contour {
	358	Rappture::PushButton $f.contour \
	359	-onimage [Rappture::icon volume-on] \
	360	-offimage [Rappture::icon volume-off] \
[4201]	361	-variable [itcl::scope _settings(-isosurfacevisible)] \
	362	-command [itcl::code $this AdjustSetting -isosurfacevisible]
[3330]	363	}
	364	$itk_component(contour) select
	365	Rappture::Tooltip::for $itk_component(contour) \
[4752]	366	"Hide the isosurface"
[3330]	367	pack $itk_component(contour) -padx 2 -pady 2
	368
	369	itk_component add cutplane {
	370	Rappture::PushButton $f.cutplane \
	371	-onimage [Rappture::icon cutbutton] \
	372	-offimage [Rappture::icon cutbutton] \
[4201]	373	-variable [itcl::scope _settings(-cutplanesvisible)] \
	374	-command [itcl::code $this AdjustSetting -cutplanesvisible]
[3330]	375	}
	376	Rappture::Tooltip::for $itk_component(cutplane) \
[4752]	377	"Show the cutplanes"
[3330]	378	pack $itk_component(cutplane) -padx 2 -pady 2
	379
[4351]	380
[3330]	381	if { [catch {
	382	BuildIsosurfaceTab
	383	BuildCutplaneTab
	384	BuildAxisTab
	385	BuildCameraTab
	386	} errs] != 0 } {
	387	puts stderr errs=$errs
	388	}
	389	# Legend
	390
	391	set _image(legend) [image create photo]
	392	itk_component add legend {
	393	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
	394	} {
	395	usual
	396	ignore -highlightthickness
	397	rename -background -plotbackground plotBackground Background
	398	}
	399
	400	# Hack around the Tk panewindow. The problem is that the requested
	401	# size of the 3d view isn't set until an image is retrieved from
	402	# the server. So the panewindow uses the tiny size.
	403	set w 10000
	404	pack forget $itk_component(view)
	405	blt::table $itk_component(plotarea) \
	406	0,0 $itk_component(view) -fill both -reqwidth $w
	407	blt::table configure $itk_component(plotarea) c1 -resize none
	408
	409	# Bindings for rotation via mouse
	410	bind $itk_component(view) <ButtonPress-1> \
	411	[itcl::code $this Rotate click %x %y]
	412	bind $itk_component(view) <B1-Motion> \
	413	[itcl::code $this Rotate drag %x %y]
	414	bind $itk_component(view) <ButtonRelease-1> \
	415	[itcl::code $this Rotate release %x %y]
	416
	417	# Bindings for panning via mouse
	418	bind $itk_component(view) <ButtonPress-2> \
	419	[itcl::code $this Pan click %x %y]
	420	bind $itk_component(view) <B2-Motion> \
	421	[itcl::code $this Pan drag %x %y]
	422	bind $itk_component(view) <ButtonRelease-2> \
	423	[itcl::code $this Pan release %x %y]
	424
[3443]	425	#bind $itk_component(view) <ButtonRelease-3> \
	426	# [itcl::code $this Pick %x %y]
[3330]	427
	428	# Bindings for panning via keyboard
	429	bind $itk_component(view) <KeyPress-Left> \
	430	[itcl::code $this Pan set -10 0]
	431	bind $itk_component(view) <KeyPress-Right> \
	432	[itcl::code $this Pan set 10 0]
	433	bind $itk_component(view) <KeyPress-Up> \
	434	[itcl::code $this Pan set 0 -10]
	435	bind $itk_component(view) <KeyPress-Down> \
	436	[itcl::code $this Pan set 0 10]
	437	bind $itk_component(view) <Shift-KeyPress-Left> \
	438	[itcl::code $this Pan set -2 0]
	439	bind $itk_component(view) <Shift-KeyPress-Right> \
	440	[itcl::code $this Pan set 2 0]
	441	bind $itk_component(view) <Shift-KeyPress-Up> \
	442	[itcl::code $this Pan set 0 -2]
	443	bind $itk_component(view) <Shift-KeyPress-Down> \
	444	[itcl::code $this Pan set 0 2]
	445
	446	# Bindings for zoom via keyboard
	447	bind $itk_component(view) <KeyPress-Prior> \
	448	[itcl::code $this Zoom out]
	449	bind $itk_component(view) <KeyPress-Next> \
	450	[itcl::code $this Zoom in]
	451
	452	bind $itk_component(view) <Enter> "focus $itk_component(view)"
	453
	454	if {[string equal "x11" [tk windowingsystem]]} {
	455	# Bindings for zoom via mouse
	456	bind $itk_component(view) <4> [itcl::code $this Zoom out]
	457	bind $itk_component(view) <5> [itcl::code $this Zoom in]
	458	}
	459
	460	set _image(download) [image create photo]
	461
	462	eval itk_initialize $args
[4186]	463
	464	EnableWaitDialog 500
[3330]	465	Connect
	466	}
	467
	468	# ----------------------------------------------------------------------
	469	# DESTRUCTOR
	470	# ----------------------------------------------------------------------
	471	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
	472	Disconnect
	473	image delete $_image(plot)
	474	image delete $_image(download)
	475	catch { blt::arcball destroy $_arcball }
	476	}
	477
	478	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
	479	if { $_width < 2 } {
	480	set _width 500
	481	}
	482	if { $_height < 2 } {
	483	set _height 500
	484	}
	485	set _start [clock clicks -milliseconds]
	486	SendCmd "screen size $_width $_height"
	487
	488	EventuallyRequestLegend
	489	set _resizePending 0
	490	}
	491
[4752]	492	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
	493	GenerateContourList
	494	SendCmd [list contour3d contourlist $_contourList(values)]
	495	SendCmd [list camera reset]
	496	DrawLegend
	497	set _contourList(updatePending) 0
	498	}
	499
[3330]	500	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
[4752]	501	SendCmd "camera orient [ViewToQuaternion]"
[3330]	502	set _rotatePending 0
	503	}
	504
	505	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
	506	if { !$_legendPending } {
	507	set _legendPending 1
	508	$_dispatcher event -idle !legend
	509	}
	510	}
	511
	512	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
	513	set _width $w
	514	set _height $h
	515	$_arcball resize $w $h
	516	if { !$_resizePending } {
	517	set _resizePending 1
	518	$_dispatcher event -after 400 !resize
	519	}
	520	}
	521
	522	set rotate_delay 100
	523
	524	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
[4752]	525	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
[3330]	526	if { !$_rotatePending } {
	527	set _rotatePending 1
	528	global rotate_delay
	529	$_dispatcher event -after $rotate_delay !rotate
	530	}
	531	}
	532
	533	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
	534	if { !$_cutplanePending } {
	535	set _cutplanePending 1
	536	$_dispatcher event -after 100 !${axis}cutplane
	537	}
	538	}
	539
[4752]	540	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
	541	set n $_contourList(numLevels)
	542	set _contourList(values) ""
	543	if { !$_contourList(updatePending) } {
	544	set _contourList(updatePending) 1
	545	global rotate_delay
	546	$_dispatcher event -after $rotate_delay !contours
	547	}
	548	}
	549
[3330]	550	# ----------------------------------------------------------------------
	551	# USAGE: add <dataobj> ?<settings>?
	552	#
	553	# Clients use this to add a data object to the plot. The optional
	554	# <settings> are used to configure the plot. Allowed settings are
	555	# -color, -brightness, -width, -linestyle, and -raise.
	556	# ----------------------------------------------------------------------
	557	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
[3571]	558	if { ![$dataobj isvalid] } {
	559	return; # Object doesn't contain valid data.
	560	}
[3330]	561	array set params {
	562	-color auto
	563	-width 1
	564	-linestyle solid
	565	-brightness 0
	566	-raise 0
	567	-description ""
	568	-param ""
	569	-type ""
	570	}
	571	array set params $settings
	572	set params(-description) ""
	573	set params(-param) ""
[3800]	574	array set params $settings
	575
[3330]	576	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
	577	# can't handle -autocolors yet
	578	set params(-color) black
	579	}
[3844]	580	set pos [lsearch -exact $_dlist $dataobj]
[3330]	581	if {$pos < 0} {
	582	lappend _dlist $dataobj
	583	}
	584	set _obj2ovride($dataobj-color) $params(-color)
	585	set _obj2ovride($dataobj-width) $params(-width)
	586	set _obj2ovride($dataobj-raise) $params(-raise)
	587	$_dispatcher event -idle !rebuild
	588	}
	589
	590
	591	# ----------------------------------------------------------------------
	592	# USAGE: delete ?<dataobj1> <dataobj2> ...?
	593	#
	594	# Clients use this to delete a dataobj from the plot. If no dataobjs
	595	# are specified, then all dataobjs are deleted. No data objects are
	596	# deleted. They are only removed from the display list.
	597	#
	598	# ----------------------------------------------------------------------
	599	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
	600	if { [llength $args] == 0} {
	601	set args $_dlist
	602	}
	603	# Delete all specified dataobjs
	604	set changed 0
	605	foreach dataobj $args {
	606	set pos [lsearch -exact $_dlist $dataobj]
	607	if { $pos < 0 } {
	608	continue; # Don't know anything about it.
	609	}
	610	# Remove it from the dataobj list.
	611	set _dlist [lreplace $_dlist $pos $pos]
	612	array unset _obj2ovride $dataobj-*
	613	array unset _settings $dataobj-*
	614	set changed 1
	615	}
	616	# If anything changed, then rebuild the plot
	617	if { $changed } {
	618	$_dispatcher event -idle !rebuild
	619	}
	620	}
	621
	622	# ----------------------------------------------------------------------
	623	# USAGE: get ?-objects?
	624	# USAGE: get ?-visible?
	625	# USAGE: get ?-image view?
	626	#
	627	# Clients use this to query the list of objects being plotted, in
	628	# order from bottom to top of this result. The optional "-image"
	629	# flag can also request the internal images being shown.
	630	# ----------------------------------------------------------------------
	631	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
	632	if {[llength $args] == 0} {
	633	set args "-objects"
	634	}
	635
	636	set op [lindex $args 0]
	637	switch -- $op {
	638	"-objects" {
	639	# put the dataobj list in order according to -raise options
	640	set dlist {}
	641	foreach dataobj $_dlist {
	642	if { ![IsValidObject $dataobj] } {
	643	continue
	644	}
	645	if {[info exists _obj2ovride($dataobj-raise)] &&
	646	$_obj2ovride($dataobj-raise)} {
	647	set dlist [linsert $dlist 0 $dataobj]
	648	} else {
	649	lappend dlist $dataobj
	650	}
	651	}
	652	return $dlist
	653	}
	654	"-visible" {
	655	set dlist {}
	656	foreach dataobj $_dlist {
	657	if { ![IsValidObject $dataobj] } {
	658	continue
	659	}
	660	if { ![info exists _obj2ovride($dataobj-raise)] } {
	661	# No setting indicates that the object isn't visible.
	662	continue
	663	}
	664	# Otherwise use the -raise parameter to put the object to
	665	# the front of the list.
	666	if { $_obj2ovride($dataobj-raise) } {
	667	set dlist [linsert $dlist 0 $dataobj]
	668	} else {
	669	lappend dlist $dataobj
	670	}
	671	}
	672	return $dlist
	673	}
	674	-image {
	675	if {[llength $args] != 2} {
	676	error "wrong # args: should be \"get -image view\""
	677	}
	678	switch -- [lindex $args end] {
	679	view {
	680	return $_image(plot)
	681	}
	682	default {
	683	error "bad image name \"[lindex $args end]\": should be view"
	684	}
	685	}
	686	}
	687	default {
	688	error "bad option \"$op\": should be -objects or -image"
	689	}
	690	}
	691	}
	692
	693	# ----------------------------------------------------------------------
	694	# USAGE: scale ?<data1> <data2> ...?
	695	#
	696	# Sets the default limits for the overall plot according to the
	697	# limits of the data for all of the given <data> objects. This
	698	# accounts for all objects--even those not showing on the screen.
	699	# Because of this, the limits are appropriate for all objects as
	700	# the user scans through data in the ResultSet viewer.
	701	# ----------------------------------------------------------------------
	702	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
	703	foreach dataobj $args {
[3571]	704	if { ![$dataobj isvalid] } {
	705	continue; # Object doesn't contain valid data.
	706	}
[3440]	707	foreach axis { x y z } {
	708	set lim [$dataobj limits $axis]
	709	if { ![info exists _limits($axis)] } {
	710	set _limits($axis) $lim
	711	continue
	712	}
	713	foreach {min max} $lim break
	714	foreach {amin amax} $_limits($axis) break
	715	if { $amin > $min } {
	716	set amin $min
	717	}
	718	if { $amax < $max } {
	719	set amax $max
	720	}
	721	set _limits($axis) [list $amin $amax]
[3330]	722	}
[3440]	723	foreach { fname lim } [$dataobj fieldlimits] {
	724	if { ![info exists _limits($fname)] } {
	725	set _limits($fname) $lim
	726	continue
	727	}
	728	foreach {min max} $lim break
	729	foreach {fmin fmax} $_limits($fname) break
	730	if { $fmin > $min } {
	731	set fmin $min
	732	}
	733	if { $fmax < $max } {
	734	set fmax $max
	735	}
	736	set _limits($fname) [list $fmin $fmax]
	737	}
[3330]	738	}
	739	}
	740
	741	# ----------------------------------------------------------------------
	742	# USAGE: download coming
	743	# USAGE: download controls <downloadCommand>
	744	# USAGE: download now
	745	#
	746	# Clients use this method to create a downloadable representation
	747	# of the plot. Returns a list of the form {ext string}, where
	748	# "ext" is the file extension (indicating the type of data) and
	749	# "string" is the data itself.
	750	# ----------------------------------------------------------------------
	751	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
	752	switch $option {
	753	coming {
	754	if {[catch {
	755	blt::winop snap $itk_component(plotarea) $_image(download)
	756	}]} {
	757	$_image(download) configure -width 1 -height 1
	758	$_image(download) put #000000
	759	}
	760	}
	761	controls {
	762	set popup .vtkviewerdownload
	763	if { ![winfo exists .vtkviewerdownload] } {
	764	set inner [BuildDownloadPopup $popup [lindex $args 0]]
	765	} else {
	766	set inner [$popup component inner]
	767	}
	768	set _downloadPopup(image_controls) $inner.image_frame
	769	set num [llength [get]]
	770	set num [expr {($num == 1) ? "1 result" : "$num results"}]
	771	set word [Rappture::filexfer::label downloadWord]
	772	$inner.summary configure -text "$word $num in the following format:"
	773	update idletasks ;# Fix initial sizes
	774	return $popup
	775	}
	776	now {
	777	set popup .vtkviewerdownload
	778	if {[winfo exists .vtkviewerdownload]} {
	779	$popup deactivate
	780	}
	781	switch -- $_downloadPopup(format) {
	782	"image" {
	783	return [$this GetImage [lindex $args 0]]
	784	}
	785	"vtk" {
	786	return [$this GetVtkData [lindex $args 0]]
	787	}
	788	}
	789	return ""
	790	}
	791	default {
	792	error "bad option \"$option\": should be coming, controls, now"
	793	}
	794	}
	795	}
	796
	797	# ----------------------------------------------------------------------
	798	# USAGE: Connect ?<host:port>,<host:port>...?
	799	#
	800	# Clients use this method to establish a connection to a new
	801	# server, or to reestablish a connection to the previous server.
	802	# Any existing connection is automatically closed.
	803	# ----------------------------------------------------------------------
	804	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
	805	set _hosts [GetServerList "vtkvis"]
	806	if { "" == $_hosts } {
	807	return 0
	808	}
	809	set result [VisViewer::Connect $_hosts]
	810	if { $result } {
[3592]	811	if { $_reportClientInfo } {
	812	# Tell the server the viewer, hub, user and session.
[4186]	813	# Do this immediately on connect before buffering any commands
[3592]	814	global env
	815
	816	set info {}
	817	set user "???"
	818	if { [info exists env(USER)] } {
	819	set user $env(USER)
	820	}
	821	set session "???"
	822	if { [info exists env(SESSION)] } {
	823	set session $env(SESSION)
	824	}
[4752]	825	lappend info "version" "$Rappture::version"
	826	lappend info "build" "$Rappture::build"
[4754]	827	lappend info "svnurl" "$Rappture::svnurl"
[4752]	828	lappend info "installdir" "$Rappture::installdir"
[3592]	829	lappend info "hub" [exec hostname]
	830	lappend info "client" "vtkisosurfaceviewer"
	831	lappend info "user" $user
	832	lappend info "session" $session
	833	SendCmd "clientinfo [list $info]"
	834	}
	835
[3330]	836	set w [winfo width $itk_component(view)]
	837	set h [winfo height $itk_component(view)]
	838	EventuallyResize $w $h
	839	}
	840	return $result
	841	}
	842
	843	#
	844	# isconnected --
	845	#
	846	# Indicates if we are currently connected to the visualization server.
	847	#
	848	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
	849	return [VisViewer::IsConnected]
	850	}
	851
	852	#
	853	# disconnect --
	854	#
	855	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
	856	Disconnect
	857	set _reset 1
	858	}
	859
	860	#
	861	# Disconnect --
	862	#
	863	# Clients use this method to disconnect from the current rendering
	864	# server.
	865	#
	866	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
	867	VisViewer::Disconnect
	868
	869	$_dispatcher cancel !rebuild
	870	$_dispatcher cancel !resize
	871	$_dispatcher cancel !rotate
	872	$_dispatcher cancel !xcutplane
	873	$_dispatcher cancel !ycutplane
	874	$_dispatcher cancel !zcutplane
	875	$_dispatcher cancel !legend
	876	# disconnected -- no more data sitting on server
	877	set _outbuf ""
[4752]	878	array unset _datasets
	879	array unset _data
	880	array unset _colormaps
	881	array unset _dataset2style
	882	array unset _obj2datasets
[3330]	883	}
	884
	885	# ----------------------------------------------------------------------
	886	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
	887	#
	888	# Invoked automatically whenever the "image" command comes in from
	889	# the rendering server. Indicates that binary image data with the
	890	# specified <size> will follow.
	891	# ----------------------------------------------------------------------
	892	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
	893	array set info {
	894	-token "???"
	895	-bytes 0
	896	-type image
	897	}
	898	array set info $args
	899	set bytes [ReceiveBytes $info(-bytes)]
	900	if { $info(-type) == "image" } {
	901	if 0 {
	902	set f [open "last.ppm" "w"]
	903	puts $f $bytes
	904	close $f
	905	}
	906	$_image(plot) configure -data $bytes
[4201]	907	#set time [clock seconds]
	908	#set date [clock format $time]
	909	#set w [image width $_image(plot)]
	910	#set h [image height $_image(plot)]
	911	#puts stderr "$date: received image ${w}x${h} image"
[3330]	912	if { $_start > 0 } {
	913	set finish [clock clicks -milliseconds]
	914	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
	915	set _start 0
	916	}
	917	} elseif { $info(type) == "print" } {
	918	set tag $this-print-$info(-token)
	919	set _hardcopy($tag) $bytes
	920	}
	921	}
	922
	923	#
	924	# ReceiveDataset --
	925	#
	926	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
	927	if { ![isconnected] } {
	928	return
	929	}
	930	set option [lindex $args 0]
	931	switch -- $option {
	932	"scalar" {
	933	set option [lindex $args 1]
	934	switch -- $option {
	935	"world" {
	936	foreach { x y z value tag } [lrange $args 2 end] break
	937	}
	938	"pixel" {
	939	foreach { x y value tag } [lrange $args 2 end] break
	940	}
	941	}
	942	}
	943	"vector" {
	944	set option [lindex $args 1]
	945	switch -- $option {
	946	"world" {
	947	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
	948	}
	949	"pixel" {
	950	foreach { x y vx vy vz tag } [lrange $args 2 end] break
	951	}
	952	}
	953	}
	954	"names" {
	955	foreach { name } [lindex $args 1] {
	956	#puts stderr "Dataset: $name"
	957	}
	958	}
	959	default {
	960	error "unknown dataset option \"$option\" from server"
	961	}
	962	}
	963	}
	964
	965	# ----------------------------------------------------------------------
	966	# USAGE: Rebuild
	967	#
	968	# Called automatically whenever something changes that affects the
	969	# data in the widget. Clears any existing data and rebuilds the
	970	# widget to display new data.
	971	# ----------------------------------------------------------------------
	972	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
	973	set w [winfo width $itk_component(view)]
	974	set h [winfo height $itk_component(view)]
	975	if { $w < 2 \|\| $h < 2 } {
[3530]	976	$_dispatcher event -idle !rebuild
[3330]	977	return
	978	}
	979
	980	# Turn on buffering of commands to the server. We don't want to
	981	# be preempted by a server disconnect/reconnect (which automatically
	982	# generates a new call to Rebuild).
[3421]	983	StartBufferingCommands
[3392]	984	if { $_reset } {
	985	set _width $w
	986	set _height $h
	987	$_arcball resize $w $h
	988	DoResize
[4752]	989
[3392]	990	# Reset the camera and other view parameters
[4752]	991	$_arcball quaternion [ViewToQuaternion]
	992	InitSettings -ortho
[3392]	993	DoRotate
	994	PanCamera
	995	set _first ""
[4752]	996	InitSettings -background \
	997	-xgrid -ygrid -zgrid -axismode \
	998	-axesvisible -axislabels -axisminorticks
	999	#SendCmd "axis lformat all %g"
[3514]	1000	StopBufferingCommands
[3392]	1001	SendCmd "imgflush"
[3514]	1002	StartBufferingCommands
[3392]	1003	}
[3330]	1004	set _first ""
[4752]	1005	SendCmd "dataset visible 0"
	1006	eval scale $_dlist
[3330]	1007	foreach dataobj [get -objects] {
	1008	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
	1009	set _first $dataobj
[4752]	1010	SetCurrentFieldName $dataobj
[3330]	1011	}
	1012	set _obj2datasets($dataobj) ""
	1013	foreach comp [$dataobj components] {
	1014	set tag $dataobj-$comp
	1015	if { ![info exists _datasets($tag)] } {
	1016	set bytes [$dataobj vtkdata $comp]
	1017	if 0 {
	1018	set f [open "/tmp/isosurface.vtk" "w"]
	1019	puts $f $bytes
	1020	close $f
	1021	}
	1022	set length [string length $bytes]
[3421]	1023	if { $_reportClientInfo } {
[3392]	1024	set info {}
[4752]	1025	lappend info "tool_id" [$dataobj hints toolid]
	1026	lappend info "tool_name" [$dataobj hints toolname]
	1027	lappend info "tool_title" [$dataobj hints tooltitle]
	1028	lappend info "tool_command" [$dataobj hints toolcommand]
	1029	lappend info "tool_revision" [$dataobj hints toolrevision]
[3394]	1030	lappend info "dataset_label" [$dataobj hints label]
	1031	lappend info "dataset_size" $length
	1032	lappend info "dataset_tag" $tag
[3392]	1033	SendCmd "clientinfo [list $info]"
	1034	}
[4752]	1035	SendCmd "dataset add $tag data follows $length"
[3330]	1036	append _outbuf $bytes
	1037	set _datasets($tag) 1
	1038	SetObjectStyle $dataobj $comp
	1039	}
	1040	lappend _obj2datasets($dataobj) $tag
	1041	if { [info exists _obj2ovride($dataobj-raise)] } {
[4351]	1042	SendCmd "contour3d visible 1 $tag"
[3330]	1043	}
	1044	}
	1045	}
[3514]	1046
[4752]	1047	InitSettings -cutplanesvisible -isosurfacevisible -outline
[3330]	1048	if { $_reset } {
	1049	# These are settings that rely on a dataset being loaded.
	1050	InitSettings \
[4201]	1051	-isosurfacelighting \
	1052	-field \
	1053	-isosurfacevisible \
	1054	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
	1055	-isosurfacewireframe \
	1056	-cutplanesvisible \
	1057	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
	1058	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
	1059	-cutplanepreinterp -numcontours
[3514]	1060
[3330]	1061	Zoom reset
[3409]	1062	foreach axis { x y z } {
	1063	# Another problem fixed by a <view>. We looking into a data
	1064	# object for the name of the axes. This should be global to
	1065	# the viewer itself.
	1066	set label [$_first hints ${axis}label]
	1067	if { $label == "" } {
[3548]	1068	set label [string toupper $axis]
[3409]	1069	}
	1070	SendCmd [list axis name $axis $label]
	1071	}
[3514]	1072	if { [array size _fields] < 2 } {
[4752]	1073	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
[3514]	1074	}
[3330]	1075	set _reset 0
	1076	}
[4752]	1077	# Redraw the legend even if we're using the same colormap. The position
	1078	# of the isolines may have changed because the range of data changed.
	1079	DrawLegend
[3330]	1080
	1081	# Actually write the commands to the server socket. If it fails, we don't
	1082	# care. We're finished here.
	1083	blt::busy hold $itk_component(hull)
[3421]	1084	StopBufferingCommands; # Turn off buffering and send commands.
[3330]	1085	blt::busy release $itk_component(hull)
	1086	}
	1087
	1088	# ----------------------------------------------------------------------
	1089	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
	1090	#
	1091	# Returns a list of server IDs for the current datasets being displayed. This
	1092	# is normally a single ID, but it might be a list of IDs if the current data
	1093	# object has multiple components.
	1094	# ----------------------------------------------------------------------
	1095	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
	1096	set flag [lindex $args 0]
	1097	switch -- $flag {
	1098	"-all" {
	1099	if { [llength $args] > 1 } {
	1100	error "CurrentDatasets: can't specify dataobj after \"-all\""
	1101	}
	1102	set dlist [get -objects]
	1103	}
	1104	"-visible" {
	1105	if { [llength $args] > 1 } {
	1106	set dlist {}
	1107	set args [lrange $args 1 end]
	1108	foreach dataobj $args {
	1109	if { [info exists _obj2ovride($dataobj-raise)] } {
	1110	lappend dlist $dataobj
	1111	}
	1112	}
	1113	} else {
	1114	set dlist [get -visible]
	1115	}
	1116	}
	1117	default {
	1118	set dlist $args
	1119	}
	1120	}
	1121	set rlist ""
	1122	foreach dataobj $dlist {
	1123	foreach comp [$dataobj components] {
	1124	set tag $dataobj-$comp
	1125	if { [info exists _datasets($tag)] && $_datasets($tag) } {
	1126	lappend rlist $tag
	1127	}
	1128	}
	1129	}
	1130	return $rlist
	1131	}
	1132
	1133	# ----------------------------------------------------------------------
	1134	# USAGE: Zoom in
	1135	# USAGE: Zoom out
	1136	# USAGE: Zoom reset
	1137	#
	1138	# Called automatically when the user clicks on one of the zoom
	1139	# controls for this widget. Changes the zoom for the current view.
	1140	# ----------------------------------------------------------------------
	1141	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
	1142	switch -- $option {
	1143	"in" {
[4752]	1144	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
	1145	SendCmd "camera zoom $_view(-zoom)"
[3330]	1146	}
	1147	"out" {
[4752]	1148	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
	1149	SendCmd "camera zoom $_view(-zoom)"
[3330]	1150	}
	1151	"reset" {
	1152	array set _view {
[4752]	1153	-qw 0.853553
	1154	-qx -0.353553
	1155	-qy 0.353553
	1156	-qz 0.146447
	1157	-xpan 0
	1158	-ypan 0
	1159	-zoom 1.0
[3330]	1160	}
	1161	if { $_first != "" } {
	1162	set location [$_first hints camera]
	1163	if { $location != "" } {
	1164	array set _view $location
	1165	}
	1166	}
[4752]	1167	$_arcball quaternion [ViewToQuaternion]
[3550]	1168	DoRotate
[3416]	1169	SendCmd "camera reset"
[3330]	1170	}
	1171	}
	1172	}
	1173
	1174	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
[4752]	1175	set x $_view(-xpan)
	1176	set y $_view(-ypan)
[3330]	1177	SendCmd "camera pan $x $y"
	1178	}
	1179
	1180
	1181	# ----------------------------------------------------------------------
	1182	# USAGE: Rotate click <x> <y>
	1183	# USAGE: Rotate drag <x> <y>
	1184	# USAGE: Rotate release <x> <y>
	1185	#
	1186	# Called automatically when the user clicks/drags/releases in the
	1187	# plot area. Moves the plot according to the user's actions.
	1188	# ----------------------------------------------------------------------
	1189	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
	1190	switch -- $option {
	1191	"click" {
	1192	$itk_component(view) configure -cursor fleur
	1193	set _click(x) $x
	1194	set _click(y) $y
	1195	}
	1196	"drag" {
	1197	if {[array size _click] == 0} {
	1198	Rotate click $x $y
	1199	} else {
	1200	set w [winfo width $itk_component(view)]
	1201	set h [winfo height $itk_component(view)]
	1202	if {$w <= 0 \|\| $h <= 0} {
	1203	return
	1204	}
	1205
	1206	if {[catch {
	1207	# this fails sometimes for no apparent reason
	1208	set dx [expr {double($x-$_click(x))/$w}]
	1209	set dy [expr {double($y-$_click(y))/$h}]
	1210	}]} {
	1211	return
	1212	}
	1213	if { $dx == 0 && $dy == 0 } {
	1214	return
	1215	}
	1216	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
	1217	EventuallyRotate $q
	1218	set _click(x) $x
	1219	set _click(y) $y
	1220	}
	1221	}
	1222	"release" {
	1223	Rotate drag $x $y
	1224	$itk_component(view) configure -cursor ""
	1225	catch {unset _click}
	1226	}
	1227	default {
	1228	error "bad option \"$option\": should be click, drag, release"
	1229	}
	1230	}
	1231	}
	1232
	1233	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
	1234	foreach tag [CurrentDatasets -visible] {
	1235	SendCmdNoSplash "dataset getscalar pixel $x $y $tag"
	1236	}
	1237	}
	1238
	1239	# ----------------------------------------------------------------------
	1240	# USAGE: $this Pan click x y
	1241	# $this Pan drag x y
	1242	# $this Pan release x y
	1243	#
	1244	# Called automatically when the user clicks on one of the zoom
	1245	# controls for this widget. Changes the zoom for the current view.
	1246	# ----------------------------------------------------------------------
	1247	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
	1248	switch -- $option {
	1249	"set" {
	1250	set w [winfo width $itk_component(view)]
	1251	set h [winfo height $itk_component(view)]
	1252	set x [expr $x / double($w)]
	1253	set y [expr $y / double($h)]
[4752]	1254	set _view(-xpan) [expr $_view(-xpan) + $x]
	1255	set _view(-ypan) [expr $_view(-ypan) + $y]
[3330]	1256	PanCamera
	1257	return
	1258	}
	1259	"click" {
	1260	set _click(x) $x
	1261	set _click(y) $y
	1262	$itk_component(view) configure -cursor hand1
	1263	}
	1264	"drag" {
	1265	if { ![info exists _click(x)] } {
	1266	set _click(x) $x
	1267	}
	1268	if { ![info exists _click(y)] } {
	1269	set _click(y) $y
	1270	}
	1271	set w [winfo width $itk_component(view)]
	1272	set h [winfo height $itk_component(view)]
	1273	set dx [expr ($_click(x) - $x)/double($w)]
	1274	set dy [expr ($_click(y) - $y)/double($h)]
	1275	set _click(x) $x
	1276	set _click(y) $y
[4752]	1277	set _view(-xpan) [expr $_view(-xpan) - $dx]
	1278	set _view(-ypan) [expr $_view(-ypan) - $dy]
[3330]	1279	PanCamera
	1280	}
	1281	"release" {
	1282	Pan drag $x $y
	1283	$itk_component(view) configure -cursor ""
	1284	}
	1285	default {
	1286	error "unknown option \"$option\": should set, click, drag, or release"
	1287	}
	1288	}
	1289	}
	1290
	1291	# ----------------------------------------------------------------------
	1292	# USAGE: InitSettings <what> ?<value>?
	1293	#
	1294	# Used internally to update rendering settings whenever parameters
	1295	# change in the popup settings panel. Sends the new settings off
	1296	# to the back end.
	1297	# ----------------------------------------------------------------------
	1298	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
	1299	foreach spec $args {
	1300	if { [info exists _settings($_first-$spec)] } {
	1301	# Reset global setting with dataobj specific setting
	1302	set _settings($spec) $_settings($_first-$spec)
	1303	}
	1304	AdjustSetting $spec
	1305	}
	1306	}
	1307
	1308	#
	1309	# AdjustSetting --
	1310	#
	1311	# Changes/updates a specific setting in the widget. There are
	1312	# usually user-setable option. Commands are sent to the render
	1313	# server.
	1314	#
	1315	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
	1316	if { ![isconnected] } {
	1317	return
	1318	}
	1319	switch -- $what {
[4201]	1320	"-axesvisible" {
[4752]	1321	set bool $_settings($what)
[3330]	1322	SendCmd "axis visible all $bool"
	1323	}
[4752]	1324	"-axislabels" {
	1325	set bool $_settings($what)
[3330]	1326	SendCmd "axis labels all $bool"
	1327	}
[4752]	1328	"-axisminorticks" {
[3330]	1329	set bool $_settings($what)
[4752]	1330	SendCmd "axis minticks all $bool"
[3330]	1331	}
[4201]	1332	"-axismode" {
[3330]	1333	set mode [$itk_component(axisMode) value]
	1334	set mode [$itk_component(axisMode) translate $mode]
	1335	set _settings($what) $mode
	1336	SendCmd "axis flymode $mode"
	1337	}
[4752]	1338	"-background" {
	1339	set bgcolor [$itk_component(background) value]
	1340	array set fgcolors {
	1341	"black" "white"
	1342	"white" "black"
	1343	"grey" "black"
	1344	}
	1345	configure -plotbackground $bgcolor \
	1346	-plotforeground $fgcolors($bgcolor)
	1347	$itk_component(view) delete "legend"
	1348	DrawLegend
	1349	}
[4201]	1350	"-cutplaneedges" {
[3330]	1351	set bool $_settings($what)
[3514]	1352	SendCmd "cutplane edges $bool"
[3330]	1353	}
[4201]	1354	"-cutplanelighting" {
[3330]	1355	set bool $_settings($what)
[3514]	1356	SendCmd "cutplane lighting $bool"
[3330]	1357	}
[4201]	1358	"-cutplaneopacity" {
[4752]	1359	set _settings($what) [expr $_widget($what) * 0.01]
	1360	SendCmd "cutplane opacity $_settings($what)"
[3330]	1361	}
[4201]	1362	"-cutplanepreinterp" {
[3517]	1363	set bool $_settings($what)
	1364	SendCmd "cutplane preinterp $bool"
	1365	}
[4752]	1366	"-cutplanesvisible" {
[3330]	1367	set bool $_settings($what)
[4752]	1368	SendCmd "cutplane visible 0"
[3330]	1369	if { $bool } {
[4752]	1370	foreach tag [CurrentDatasets -visible] {
	1371	SendCmd "cutplane visible $bool $tag"
	1372	}
	1373	}
	1374	if { $bool } {
	1375	Rappture::Tooltip::for $itk_component(cutplane) \
	1376	"Hide the cutplanes"
[3330]	1377	} else {
[4752]	1378	Rappture::Tooltip::for $itk_component(cutplane) \
	1379	"Show the cutplanes"
[3330]	1380	}
	1381	}
[4752]	1382	"-cutplanewireframe" {
	1383	set bool $_settings($what)
	1384	SendCmd "cutplane wireframe $bool"
[3330]	1385	}
[4201]	1386	"-colormap" {
[4752]	1387	set _changed($what) 1
[3514]	1388	StartBufferingCommands
	1389	set color [$itk_component(colormap) value]
[4752]	1390	set _settings($what) $color
[3330]	1391	if { $color == "none" } {
[4201]	1392	if { $_settings(-colormapvisible) } {
[3843]	1393	SendCmd "contour3d colormode constant {}"
[4201]	1394	set _settings(-colormapvisible) 0
[3330]	1395	}
	1396	} else {
[4201]	1397	if { !$_settings(-colormapvisible) } {
[3780]	1398	SendCmd "contour3d colormode $_colorMode $_curFldName"
[4201]	1399	set _settings(-colormapvisible) 1
[3330]	1400	}
[3514]	1401	SetCurrentColormap $color
[3330]	1402	}
[3514]	1403	StopBufferingCommands
[3330]	1404	EventuallyRequestLegend
	1405	}
[4201]	1406	"-field" {
[3442]	1407	set label [$itk_component(field) value]
	1408	set fname [$itk_component(field) translate $label]
[4201]	1409	set _settings($what) $fname
[3442]	1410	if { [info exists _fields($fname)] } {
	1411	foreach { label units components } $_fields($fname) break
	1412	if { $components > 1 } {
	1413	set _colorMode vmag
	1414	} else {
	1415	set _colorMode scalar
	1416	}
	1417	set _curFldName $fname
	1418	set _curFldLabel $label
[3330]	1419	} else {
[3442]	1420	puts stderr "unknown field \"$fname\""
[3330]	1421	return
	1422	}
[3555]	1423	SendCmd "dataset scalar $_curFldName"
[4351]	1424	if { ![info exists _limits($_curFldName)] } {
	1425	SendCmd "dataset maprange all"
	1426	} else {
	1427	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
	1428	}
[3555]	1429	SendCmd "cutplane colormode $_colorMode $_curFldName"
[3442]	1430	SendCmd "contour3d colormode $_colorMode $_curFldName"
	1431	SendCmd "camera reset"
[4752]	1432	GenerateContourList
[3442]	1433	DrawLegend
[3330]	1434	}
[4752]	1435	"-isolinecolor" {
	1436	set color [$itk_component(isolineColor) value]
	1437	set _settings($what) $color
	1438	DrawLegend
	1439	}
	1440	"-isosurfaceedges" {
	1441	set bool $_settings($what)
	1442	SendCmd "contour3d edges $bool"
	1443	}
	1444	"-isosurfacelighting" {
	1445	set bool $_settings($what)
	1446	SendCmd "contour3d lighting $bool"
	1447	}
	1448	"-isosurfaceopacity" {
	1449	set _settings($what) [expr $_widget($what) * 0.01]
	1450	SendCmd "contour3d opacity $_settings($what)"
	1451	}
	1452	"-isosurfacevisible" {
	1453	set bool $_settings($what)
	1454	SendCmd "contour3d visible 0"
	1455	if { $bool } {
	1456	foreach tag [CurrentDatasets -visible] {
	1457	SendCmd "contour3d visible $bool $tag"
	1458	}
	1459	}
	1460	if { $bool } {
	1461	Rappture::Tooltip::for $itk_component(contour) \
	1462	"Hide the isosurface"
	1463	} else {
	1464	Rappture::Tooltip::for $itk_component(contour) \
	1465	"Show the isosurface"
	1466	}
	1467	}
	1468	"-isosurfacewireframe" {
	1469	set bool $_settings($what)
	1470	SendCmd "contour3d wireframe $bool"
	1471	}
[4201]	1472	"-legendvisible" {
	1473	if { !$_settings($what) } {
[3330]	1474	$itk_component(view) delete legend
	1475	}
[3442]	1476	DrawLegend
[3330]	1477	}
[4752]	1478	"-numcontours" {
	1479	set _settings($what) [$itk_component(numcontours) value]
	1480	if { $_contourList(numLevels) != $_settings($what) } {
	1481	set _contourList(numLevels) $_settings($what)
	1482	EventuallyChangeContourLevels
	1483	}
	1484	}
	1485	"-ortho" {
	1486	set bool $_view($what)
	1487	if { $bool } {
	1488	SendCmd "camera mode ortho"
	1489	} else {
	1490	SendCmd "camera mode persp"
	1491	}
	1492	}
	1493	"-outline" {
	1494	set bool $_settings($what)
	1495	SendCmd "outline visible 0"
	1496	if { $bool } {
	1497	foreach tag [CurrentDatasets -visible] {
	1498	SendCmd "outline visible $bool $tag"
	1499	}
	1500	}
	1501	}
	1502	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
	1503	set axis [string tolower [string range $what 1 1]]
	1504	set bool $_settings($what)
	1505	if { $bool } {
	1506	$itk_component(${axis}position) configure -state normal \
	1507	-troughcolor white
	1508	} else {
	1509	$itk_component(${axis}position) configure -state disabled \
	1510	-troughcolor grey82
	1511	}
	1512	SendCmd "cutplane axis $axis $bool"
	1513	}
	1514	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
	1515	set axis [string tolower [string range $what 1 1]]
	1516	set pos [expr $_settings($what) * 0.01]
	1517	SendCmd "cutplane slice ${axis} ${pos}"
	1518	set _cutplanePending 0
	1519	}
	1520	"-xgrid" - "-ygrid" - "-zgrid" {
	1521	set axis [string tolower [string range $what 1 1]]
	1522	set bool $_settings($what)
	1523	SendCmd "axis grid $axis $bool"
	1524	}
[3330]	1525	default {
	1526	error "don't know how to fix $what"
	1527	}
	1528	}
	1529	}
	1530
	1531
	1532	#
	1533	# RequestLegend --
	1534	#
	1535	# Request a new legend from the server. The size of the legend
	1536	# is determined from the height of the canvas.
	1537	#
	1538	# This should be called when
	1539	# 1. A new current colormap is set.
	1540	# 2. Window is resized.
	1541	# 3. The limits of the data have changed. (Just need a redraw).
	1542	# 4. Number of isolines have changed. (Just need a redraw).
	1543	# 5. Legend becomes visible (Just need a redraw).
	1544	#
	1545	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
[3780]	1546	set _legendPending 0
[3445]	1547	if { ![info exists _fields($_curFldName)] } {
	1548	return
	1549	}
	1550	set fname $_curFldName
[3330]	1551	set font "Arial 8"
	1552	set lineht [font metrics $font -linespace]
	1553	set w 12
	1554	set h [expr {$_height - 2 * ($lineht + 2)}]
[4186]	1555	if { $h < 1 } {
[3330]	1556	return
	1557	}
[3445]	1558	if { [string match "component*" $fname] } {
	1559	set title ""
	1560	} else {
	1561	if { [info exists _fields($fname)] } {
	1562	foreach { title units } $_fields($fname) break
	1563	if { $units != "" } {
	1564	set title [format "%s (%s)" $title $units]
	1565	}
	1566	} else {
	1567	set title $fname
[3330]	1568	}
	1569	}
[3879]	1570	# If there's a title too, subtract one more line
[3445]	1571	if { $title != "" } {
	1572	incr h -$lineht
	1573	}
[3330]	1574	# Set the legend on the first heightmap dataset.
	1575	if { $_currentColormap != "" } {
	1576	set cmap $_currentColormap
[3445]	1577	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
[3330]	1578	}
	1579	}
	1580
	1581	# ----------------------------------------------------------------------
	1582	# CONFIGURATION OPTION: -plotbackground
	1583	# ----------------------------------------------------------------------
	1584	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
	1585	if { [isconnected] } {
[3358]	1586	set rgb [Color2RGB $itk_option(-plotbackground)]
	1587	SendCmd "screen bgcolor $rgb"
[3330]	1588	}
	1589	}
	1590
	1591	# ----------------------------------------------------------------------
	1592	# CONFIGURATION OPTION: -plotforeground
	1593	# ----------------------------------------------------------------------
	1594	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
	1595	if { [isconnected] } {
[3358]	1596	set rgb [Color2RGB $itk_option(-plotforeground)]
	1597	SendCmd "axis color all $rgb"
[3544]	1598	SendCmd "outline color $rgb"
[3843]	1599	SendCmd "cutplane color $rgb"
[3330]	1600	}
	1601	}
	1602
	1603	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
	1604
	1605	set fg [option get $itk_component(hull) font Font]
	1606	#set bfg [option get $itk_component(hull) boldFont Font]
	1607
	1608	set inner [$itk_component(main) insert end \
	1609	-title "Isosurface Settings" \
	1610	-icon [Rappture::icon volume-on]]
	1611	$inner configure -borderwidth 4
	1612
	1613	checkbutton $inner.contour \
	1614	-text "Isosurfaces" \
[4201]	1615	-variable [itcl::scope _settings(-isosurfacevisible)] \
	1616	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
[3330]	1617	-font "Arial 9"
	1618
	1619	checkbutton $inner.wireframe \
	1620	-text "Wireframe" \
[4201]	1621	-variable [itcl::scope _settings(-isosurfacewireframe)] \
	1622	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
[3330]	1623	-font "Arial 9"
	1624
	1625	checkbutton $inner.lighting \
	1626	-text "Enable Lighting" \
[4201]	1627	-variable [itcl::scope _settings(-isosurfacelighting)] \
	1628	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
[3330]	1629	-font "Arial 9"
	1630
	1631	checkbutton $inner.edges \
	1632	-text "Edges" \
[4201]	1633	-variable [itcl::scope _settings(-isosurfaceedges)] \
	1634	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
[3330]	1635	-font "Arial 9"
	1636
	1637	checkbutton $inner.outline \
	1638	-text "Outline" \
[4752]	1639	-variable [itcl::scope _settings(-outline)] \
	1640	-command [itcl::code $this AdjustSetting -outline] \
[3330]	1641	-font "Arial 9"
	1642
	1643	checkbutton $inner.legend \
	1644	-text "Legend" \
[4201]	1645	-variable [itcl::scope _settings(-legendvisible)] \
	1646	-command [itcl::code $this AdjustSetting -legendvisible] \
[3330]	1647	-font "Arial 9"
	1648
	1649	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
	1650	itk_component add isolineColor {
[4201]	1651	Rappture::Combobox $inner.linecolor -width 10 -editable 0
[3330]	1652	}
	1653	$inner.linecolor choices insert end \
	1654	"black" "black" \
	1655	"blue" "blue" \
	1656	"cyan" "cyan" \
	1657	"green" "green" \
	1658	"grey" "grey" \
	1659	"magenta" "magenta" \
	1660	"orange" "orange" \
	1661	"red" "red" \
	1662	"white" "white" \
	1663	"none" "none"
	1664
	1665	$itk_component(isolineColor) value "white"
	1666	bind $inner.linecolor <<Value>> \
[4341]	1667	[itcl::code $this AdjustSetting -isolinecolor]
[3330]	1668
	1669	label $inner.background_l -text "Background" -font "Arial 9"
	1670	itk_component add background {
[4201]	1671	Rappture::Combobox $inner.background -width 10 -editable 0
[3330]	1672	}
	1673	$inner.background choices insert end \
	1674	"black" "black" \
	1675	"white" "white" \
	1676	"grey" "grey"
	1677
[4201]	1678	$itk_component(background) value $_settings(-background)
	1679	bind $inner.background <<Value>> \
	1680	[itcl::code $this AdjustSetting -background]
[3330]	1681
	1682	label $inner.opacity_l -text "Opacity" -font "Arial 9"
	1683	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
[4752]	1684	-variable [itcl::scope _widget(-isosurfaceopacity)] \
[3330]	1685	-width 10 \
	1686	-showvalue off \
[4201]	1687	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
[4752]	1688	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
[3330]	1689
[3514]	1690	itk_component add field_l {
	1691	label $inner.field_l -text "Field" -font "Arial 9"
	1692	} {
	1693	ignore -font
	1694	}
[3330]	1695	itk_component add field {
[4201]	1696	Rappture::Combobox $inner.field -width 10 -editable 0
[3330]	1697	}
	1698	bind $inner.field <<Value>> \
[4201]	1699	[itcl::code $this AdjustSetting -field]
[3330]	1700
[3514]	1701	label $inner.colormap_l -text "Colormap" -font "Arial 9"
	1702	itk_component add colormap {
[4201]	1703	Rappture::Combobox $inner.colormap -width 10 -editable 0
[3330]	1704	}
[4752]	1705	$inner.colormap choices insert end [GetColormapList]
[3330]	1706
[3514]	1707	$itk_component(colormap) value "BCGYR"
	1708	bind $inner.colormap <<Value>> \
[4201]	1709	[itcl::code $this AdjustSetting -colormap]
[3330]	1710
[3514]	1711	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
	1712	itk_component add numcontours {
	1713	Rappture::Spinint $inner.numcontours \
[4186]	1714	-min 0 -max 50 -font "arial 9"
[3514]	1715	}
[4201]	1716	$itk_component(numcontours) value $_settings(-numcontours)
[3514]	1717	bind $itk_component(numcontours) <<Value>> \
[4201]	1718	[itcl::code $this AdjustSetting -numcontours]
[3514]	1719
[3330]	1720	blt::table $inner \
[3514]	1721	0,0 $inner.field_l -anchor w -pady 2 \
	1722	0,1 $inner.field -anchor w -pady 2 -fill x \
	1723	1,0 $inner.colormap_l -anchor w -pady 2 \
	1724	1,1 $inner.colormap -anchor w -pady 2 -fill x \
	1725	2,0 $inner.linecolor_l -anchor w -pady 2 \
	1726	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
	1727	3,0 $inner.background_l -anchor w -pady 2 \
	1728	3,1 $inner.background -anchor w -pady 2 -fill x \
	1729	4,0 $inner.numcontours_l -anchor w -pady 2 \
	1730	4,1 $inner.numcontours -anchor w -pady 2 \
	1731	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
	1732	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
	1733	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
	1734	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
	1735	9,0 $inner.legend -anchor w -pady 2 \
	1736	10,0 $inner.opacity_l -anchor w -pady 2 \
	1737	10,1 $inner.opacity -fill x -pady 2 -fill x \
[3330]	1738
	1739	blt::table configure $inner r* c* -resize none
	1740	blt::table configure $inner r11 c1 -resize expand
	1741	}
	1742
	1743	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
	1744
	1745	set fg [option get $itk_component(hull) font Font]
	1746	#set bfg [option get $itk_component(hull) boldFont Font]
	1747
	1748	set inner [$itk_component(main) insert end \
	1749	-title "Axis Settings" \
[3517]	1750	-icon [Rappture::icon axis2]]
[3330]	1751	$inner configure -borderwidth 4
	1752
	1753	checkbutton $inner.visible \
[4752]	1754	-text "Axes" \
[4201]	1755	-variable [itcl::scope _settings(-axesvisible)] \
	1756	-command [itcl::code $this AdjustSetting -axesvisible] \
[3330]	1757	-font "Arial 9"
	1758
	1759	checkbutton $inner.labels \
[4752]	1760	-text "Axis Labels" \
	1761	-variable [itcl::scope _settings(-axislabels)] \
	1762	-command [itcl::code $this AdjustSetting -axislabels] \
[3330]	1763	-font "Arial 9"
[4752]	1764	label $inner.grid_l -text "Grid" -font "Arial 9"
	1765	checkbutton $inner.xgrid \
	1766	-text "X" \
	1767	-variable [itcl::scope _settings(-xgrid)] \
	1768	-command [itcl::code $this AdjustSetting -xgrid] \
[3330]	1769	-font "Arial 9"
[4752]	1770	checkbutton $inner.ygrid \
	1771	-text "Y" \
	1772	-variable [itcl::scope _settings(-ygrid)] \
	1773	-command [itcl::code $this AdjustSetting -ygrid] \
[3330]	1774	-font "Arial 9"
[4752]	1775	checkbutton $inner.zgrid \
	1776	-text "Z" \
	1777	-variable [itcl::scope _settings(-zgrid)] \
	1778	-command [itcl::code $this AdjustSetting -zgrid] \
[3330]	1779	-font "Arial 9"
[4752]	1780	checkbutton $inner.minorticks \
	1781	-text "Minor Ticks" \
	1782	-variable [itcl::scope _settings(-axisminorticks)] \
	1783	-command [itcl::code $this AdjustSetting -axisminorticks] \
	1784	-font "Arial 9"
[3330]	1785
	1786	label $inner.mode_l -text "Mode" -font "Arial 9"
	1787
	1788	itk_component add axisMode {
[4201]	1789	Rappture::Combobox $inner.mode -width 10 -editable 0
[3330]	1790	}
	1791	$inner.mode choices insert end \
	1792	"static_triad" "static" \
	1793	"closest_triad" "closest" \
[4186]	1794	"furthest_triad" "farthest" \
[3330]	1795	"outer_edges" "outer"
[4752]	1796	$itk_component(axisMode) value $_settings(-axismode)
[4201]	1797	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
[3330]	1798
	1799	blt::table $inner \
[4752]	1800	0,0 $inner.visible -anchor w -cspan 4 \
	1801	1,0 $inner.labels -anchor w -cspan 4 \
	1802	2,0 $inner.minorticks -anchor w -cspan 4 \
	1803	4,0 $inner.grid_l -anchor w \
	1804	4,1 $inner.xgrid -anchor w \
	1805	4,2 $inner.ygrid -anchor w \
	1806	4,3 $inner.zgrid -anchor w \
	1807	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
	1808	5,1 $inner.mode -fill x -cspan 3
[3330]	1809
	1810	blt::table configure $inner r* c* -resize none
[4752]	1811	blt::table configure $inner r7 c6 -resize expand
	1812	blt::table configure $inner r3 -height 0.125i
[3330]	1813	}
	1814
	1815
	1816	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
	1817	set inner [$itk_component(main) insert end \
	1818	-title "Camera Settings" \
	1819	-icon [Rappture::icon camera]]
	1820	$inner configure -borderwidth 4
	1821
[3517]	1822	label $inner.view_l -text "view" -font "Arial 9"
	1823	set f [frame $inner.view]
	1824	foreach side { front back left right top bottom } {
	1825	button $f.$side -image [Rappture::icon view$side] \
	1826	-command [itcl::code $this SetOrientation $side]
	1827	Rappture::Tooltip::for $f.$side "Change the view to $side"
	1828	pack $f.$side -side left
	1829	}
	1830
	1831	blt::table $inner \
[3536]	1832	0,0 $inner.view_l -anchor e -pady 2 \
	1833	0,1 $inner.view -anchor w -pady 2
[4752]	1834	blt::table configure $inner r0 -resize none
[3517]	1835
[3330]	1836	set labels { qx qy qz qw xpan ypan zoom }
[3517]	1837	set row 1
[3330]	1838	foreach tag $labels {
	1839	label $inner.${tag}label -text $tag -font "Arial 9"
	1840	entry $inner.${tag} -font "Arial 9" -bg white \
[4752]	1841	-textvariable [itcl::scope _view(-$tag)]
[3330]	1842	bind $inner.${tag} <KeyPress-Return> \
	1843	[itcl::code $this camera set ${tag}]
	1844	blt::table $inner \
	1845	$row,0 $inner.${tag}label -anchor e -pady 2 \
	1846	$row,1 $inner.${tag} -anchor w -pady 2
	1847	blt::table configure $inner r$row -resize none
	1848	incr row
	1849	}
	1850	checkbutton $inner.ortho \
	1851	-text "Orthographic Projection" \
[4752]	1852	-variable [itcl::scope _view(-ortho)] \
	1853	-command [itcl::code $this AdjustSetting -ortho] \
[3330]	1854	-font "Arial 9"
	1855	blt::table $inner \
[3441]	1856	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
[3330]	1857	blt::table configure $inner r$row -resize none
	1858	incr row
	1859
[4752]	1860	blt::table configure $inner c* -resize none
[3330]	1861	blt::table configure $inner c2 -resize expand
	1862	blt::table configure $inner r$row -resize expand
	1863	}
	1864
	1865	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
	1866
	1867	set fg [option get $itk_component(hull) font Font]
	1868
	1869	set inner [$itk_component(main) insert end \
	1870	-title "Cutplane Settings" \
	1871	-icon [Rappture::icon cutbutton]]
	1872
	1873	$inner configure -borderwidth 4
	1874
	1875	checkbutton $inner.visible \
	1876	-text "Cutplanes" \
[4201]	1877	-variable [itcl::scope _settings(-cutplanesvisible)] \
	1878	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
[3330]	1879	-font "Arial 9"
	1880
	1881	checkbutton $inner.wireframe \
	1882	-text "Wireframe" \
[4201]	1883	-variable [itcl::scope _settings(-cutplanewireframe)] \
	1884	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
[3330]	1885	-font "Arial 9"
	1886
	1887	checkbutton $inner.lighting \
	1888	-text "Enable Lighting" \
[4201]	1889	-variable [itcl::scope _settings(-cutplanelighting)] \
	1890	-command [itcl::code $this AdjustSetting -cutplanelighting] \
[3330]	1891	-font "Arial 9"
	1892
	1893	checkbutton $inner.edges \
	1894	-text "Edges" \
[4201]	1895	-variable [itcl::scope _settings(-cutplaneedges)] \
	1896	-command [itcl::code $this AdjustSetting -cutplaneedges] \
[3330]	1897	-font "Arial 9"
	1898
[3517]	1899	checkbutton $inner.preinterp \
[3536]	1900	-text "Interpolate Scalars" \
[4201]	1901	-variable [itcl::scope _settings(-cutplanepreinterp)] \
	1902	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
[3517]	1903	-font "Arial 9"
	1904
[3330]	1905	label $inner.opacity_l -text "Opacity" -font "Arial 9"
	1906	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
[4752]	1907	-variable [itcl::scope _widget(-cutplaneopacity)] \
[3330]	1908	-width 10 \
	1909	-showvalue off \
[4201]	1910	-command [itcl::code $this AdjustSetting -cutplaneopacity]
[4752]	1911	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
[3330]	1912
	1913	# X-value slicer...
	1914	itk_component add xbutton {
	1915	Rappture::PushButton $inner.xbutton \
	1916	-onimage [Rappture::icon x-cutplane-red] \
	1917	-offimage [Rappture::icon x-cutplane-red] \
[4201]	1918	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
	1919	-variable [itcl::scope _settings(-xcutplanevisible)] \
[3330]	1920	}
	1921	Rappture::Tooltip::for $itk_component(xbutton) \
	1922	"Toggle the X-axis cutplane on/off"
	1923	$itk_component(xbutton) select
	1924	itk_component add xposition {
	1925	::scale $inner.xval -from 100 -to 0 \
[4201]	1926	-width 10 -orient vertical -showvalue 1 \
[3330]	1927	-borderwidth 1 -highlightthickness 0 \
	1928	-command [itcl::code $this EventuallySetCutplane x] \
[4201]	1929	-variable [itcl::scope _settings(-xcutplaneposition)] \
[3332]	1930	-foreground red2 -font "Arial 9 bold"
[3330]	1931	} {
	1932	usual
	1933	ignore -borderwidth -highlightthickness -foreground -font -background
	1934	}
	1935	# Set the default cutplane value before disabling the scale.
	1936	$itk_component(xposition) set 50
	1937	$itk_component(xposition) configure -state disabled
	1938	Rappture::Tooltip::for $itk_component(xposition) \
	1939	"@[itcl::code $this Slice tooltip x]"
	1940
	1941	# Y-value slicer...
	1942	itk_component add ybutton {
	1943	Rappture::PushButton $inner.ybutton \
	1944	-onimage [Rappture::icon y-cutplane-green] \
	1945	-offimage [Rappture::icon y-cutplane-green] \
[4201]	1946	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
	1947	-variable [itcl::scope _settings(-ycutplanevisible)] \
[3330]	1948	}
	1949	Rappture::Tooltip::for $itk_component(ybutton) \
	1950	"Toggle the Y-axis cutplane on/off"
	1951	$itk_component(ybutton) select
	1952
	1953	itk_component add yposition {
	1954	::scale $inner.yval -from 100 -to 0 \
[4201]	1955	-width 10 -orient vertical -showvalue 1 \
[3330]	1956	-borderwidth 1 -highlightthickness 0 \
	1957	-command [itcl::code $this EventuallySetCutplane y] \
[4201]	1958	-variable [itcl::scope _settings(-ycutplaneposition)] \
[3330]	1959	-foreground green3 -font "Arial 9 bold"
	1960	} {
	1961	usual
	1962	ignore -borderwidth -highlightthickness -foreground -font
	1963	}
	1964	Rappture::Tooltip::for $itk_component(yposition) \
	1965	"@[itcl::code $this Slice tooltip y]"
	1966	# Set the default cutplane value before disabling the scale.
	1967	$itk_component(yposition) set 50
	1968	$itk_component(yposition) configure -state disabled
	1969
	1970	# Z-value slicer...
	1971	itk_component add zbutton {
	1972	Rappture::PushButton $inner.zbutton \
	1973	-onimage [Rappture::icon z-cutplane-blue] \
	1974	-offimage [Rappture::icon z-cutplane-blue] \
[4201]	1975	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
	1976	-variable [itcl::scope _settings(-zcutplanevisible)] \
[3330]	1977	} {
	1978	usual
	1979	ignore -foreground
	1980	}
	1981	Rappture::Tooltip::for $itk_component(zbutton) \
	1982	"Toggle the Z-axis cutplane on/off"
	1983	$itk_component(zbutton) select
	1984
	1985	itk_component add zposition {
	1986	::scale $inner.zval -from 100 -to 0 \
[4201]	1987	-width 10 -orient vertical -showvalue 1 \
[3330]	1988	-borderwidth 1 -highlightthickness 0 \
	1989	-command [itcl::code $this EventuallySetCutplane z] \
[4201]	1990	-variable [itcl::scope _settings(-zcutplaneposition)] \
[3330]	1991	-foreground blue3 -font "Arial 9 bold"
	1992	} {
	1993	usual
	1994	ignore -borderwidth -highlightthickness -foreground -font
	1995	}
	1996	$itk_component(zposition) set 50
	1997	$itk_component(zposition) configure -state disabled
	1998	Rappture::Tooltip::for $itk_component(zposition) \
	1999	"@[itcl::code $this Slice tooltip z]"
	2000
	2001	blt::table $inner \
	2002	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
	2003	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
	2004	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
	2005	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
[3517]	2006	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
	2007	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
	2008	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
[3330]	2009	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
	2010	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
	2011	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
	2012	6,1 $inner.xval -fill y -rspan 4 \
	2013	6,2 $inner.yval -fill y -rspan 4 \
	2014	6,3 $inner.zval -fill y -rspan 4 \
	2015
	2016
	2017	blt::table configure $inner r* c* -resize none
	2018	blt::table configure $inner r9 c4 -resize expand
	2019	}
	2020
	2021
	2022
	2023	#
	2024	# camera --
	2025	#
	2026	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
	2027	switch -- $option {
	2028	"show" {
	2029	puts [array get _view]
	2030	}
	2031	"set" {
[4752]	2032	set what [lindex $args 0]
	2033	set x $_view($what)
[3330]	2034	set code [catch { string is double $x } result]
	2035	if { $code != 0 \|\| !$result } {
	2036	return
	2037	}
[4752]	2038	switch -- $what {
	2039	"-ortho" {
	2040	if {$_view($what)} {
[3330]	2041	SendCmd "camera mode ortho"
	2042	} else {
	2043	SendCmd "camera mode persp"
	2044	}
	2045	}
[4752]	2046	"-xpan" - "-ypan" {
[3330]	2047	PanCamera
	2048	}
[4752]	2049	"-qx" - "-qy" - "-qz" - "-qw" {
	2050	set q [ViewToQuaternion]
[3330]	2051	$_arcball quaternion $q
	2052	EventuallyRotate $q
	2053	}
[4752]	2054	"-zoom" {
	2055	SendCmd "camera zoom $_view(-zoom)"
[3330]	2056	}
	2057	}
	2058	}
	2059	}
	2060	}
	2061
	2062	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
	2063	set bytes ""
	2064	foreach dataobj [get] {
	2065	foreach cname [$dataobj components] {
	2066	set tag $dataobj-$cname
	2067	set contents [$dataobj vtkdata $cname]
[3780]	2068	append bytes "$contents\n"
[3330]	2069	}
	2070	}
	2071	return [list .vtk $bytes]
	2072	}
	2073
	2074	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
	2075	if { [image width $_image(download)] > 0 &&
	2076	[image height $_image(download)] > 0 } {
	2077	set bytes [$_image(download) data -format "jpeg -quality 100"]
	2078	set bytes [Rappture::encoding::decode -as b64 $bytes]
	2079	return [list .jpg $bytes]
	2080	}
	2081	return ""
	2082	}
	2083
	2084	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
	2085	Rappture::Balloon $popup \
	2086	-title "[Rappture::filexfer::label downloadWord] as..."
	2087	set inner [$popup component inner]
	2088	label $inner.summary -text "" -anchor w
	2089	radiobutton $inner.vtk_button -text "VTK data file" \
	2090	-variable [itcl::scope _downloadPopup(format)] \
	2091	-font "Arial 9 " \
	2092	-value vtk
	2093	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
	2094	radiobutton $inner.image_button -text "Image File" \
	2095	-variable [itcl::scope _downloadPopup(format)] \
	2096	-font "Arial 9 " \
	2097	-value image
	2098	Rappture::Tooltip::for $inner.image_button \
	2099	"Save as digital image."
	2100
	2101	button $inner.ok -text "Save" \
	2102	-highlightthickness 0 -pady 2 -padx 3 \
	2103	-command $command \
	2104	-compound left \
	2105	-image [Rappture::icon download]
	2106
	2107	button $inner.cancel -text "Cancel" \
	2108	-highlightthickness 0 -pady 2 -padx 3 \
	2109	-command [list $popup deactivate] \
	2110	-compound left \
	2111	-image [Rappture::icon cancel]
	2112
	2113	blt::table $inner \
	2114	0,0 $inner.summary -cspan 2 \
	2115	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
	2116	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
	2117	4,1 $inner.cancel -width .9i -fill y \
	2118	4,0 $inner.ok -padx 2 -width .9i -fill y
	2119	blt::table configure $inner r3 -height 4
	2120	blt::table configure $inner r4 -pady 4
	2121	raise $inner.image_button
	2122	$inner.vtk_button invoke
	2123	return $inner
	2124	}
	2125
	2126	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
	2127	# Parse style string.
	2128	set tag $dataobj-$comp
	2129	array set style {
[4752]	2130	-color BCGYR
	2131	-cutplanesvisible 0
	2132	-edgecolor black
	2133	-edges 0
	2134	-isosurfacevisible 1
	2135	-levels 10
	2136	-lighting 1
	2137	-linewidth 1.0
	2138	-opacity 0.6
	2139	-outline 0
	2140	-wireframe 0
	2141	-xcutplaneposition 50
	2142	-xcutplanevisible 1
	2143	-ycutplaneposition 50
	2144	-ycutplanevisible 1
	2145	-zcutplaneposition 50
	2146	-zcutplanevisible 1
[3330]	2147	}
	2148	array set style [$dataobj style $comp]
[4186]	2149	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
[4752]	2150	set style(-opacity) 1.0
[3330]	2151	}
	2152
[3514]	2153	# This is too complicated. We want to set the colormap, number of
	2154	# isolines and opacity for the dataset. They can be the default values,
	2155	# the style hints loaded with the dataset, or set by user controls. As
	2156	# datasets get loaded, they first use the defaults that are overidden
	2157	# by the style hints. If the user changes the global controls, then that
	2158	# overrides everything else. I don't know what it means when global
	2159	# controls are specified as style hints by each dataset. It complicates
	2160	# the code to handle aberrant cases.
	2161
[4201]	2162	if { $_changed(-isosurfaceopacity) } {
	2163	set style(-opacity) $_settings(-isosurfaceopacity)
[3514]	2164	}
[4201]	2165	if { $_changed(-numcontours) } {
	2166	set style(-levels) $_settings(-numcontours)
[3514]	2167	}
[4201]	2168	if { $_changed(-colormap) } {
	2169	set style(-color) $_settings(-colormap)
[3514]	2170	}
	2171	if { $_currentColormap == "" } {
[4186]	2172	SetCurrentColormap $style(-color)
[3514]	2173	$itk_component(colormap) value $style(-color)
	2174	}
[4752]	2175	if { $_contourList(numLevels) != $style(-levels) } {
	2176	if { [llength $style(-levels)] > 1 } {
	2177	set _contourList(reqValues) [lsort -real $style(-levels)]
	2178	} else {
	2179	set _settings(-numcontours) $style(-levels)
	2180	$itk_component(numcontours) value $style(-levels)
	2181	set _contourList(numLevels) $style(-levels)
	2182	}
	2183	EventuallyChangeContourLevels
[3514]	2184	}
[4201]	2185	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
	2186	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
	2187	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
	2188	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
	2189	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
	2190	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
	2191	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
	2192	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
	2193
[4752]	2194	SendCmd "cutplane add $tag"
	2195	SendCmd "cutplane color [Color2RGB $itk_option(-plotforeground)] $tag"
	2196	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
	2197
[3544]	2198	SendCmd "outline add $tag"
	2199	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
	2200	SendCmd "outline visible $style(-outline) $tag"
[4752]	2201	set _settings(-outline) $style(-outline)
	2202
	2203	GenerateContourList
	2204	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
	2205	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
	2206	SendCmd "contour3d edges $style(-edges) $tag"
[4201]	2207	set _settings(-isosurfaceedges) $style(-edges)
[3330]	2208	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
	2209	SendCmd "contour3d lighting $style(-lighting) $tag"
[4201]	2210	set _settings(-isosurfacelighting) $style(-lighting)
[3330]	2211	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
	2212	SendCmd "contour3d linewidth $style(-linewidth) $tag"
[4752]	2213	SendCmd "contour3d opacity $style(-opacity) $tag"
[4201]	2214	set _settings(-isosurfaceopacity) $style(-opacity)
[3514]	2215	SetCurrentColormap $style(-color)
[3330]	2216	SendCmd "contour3d wireframe $style(-wireframe) $tag"
[4201]	2217	set _settings(-isosurfacewireframe) $style(-wireframe)
[3330]	2218	}
	2219
	2220	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
	2221	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
	2222	return 0
	2223	}
	2224	return 1
	2225	}
	2226
	2227	#
	2228	# EnterLegend --
	2229	#
	2230	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
	2231	SetLegendTip $x $y
	2232	}
	2233
	2234	#
	2235	# MotionLegend --
	2236	#
	2237	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
	2238	Rappture::Tooltip::tooltip cancel
	2239	set c $itk_component(view)
[3442]	2240	set cw [winfo width $c]
	2241	set ch [winfo height $c]
	2242	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
	2243	SetLegendTip $x $y
	2244	}
[3330]	2245	}
	2246
	2247	#
	2248	# LeaveLegend --
	2249	#
	2250	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
	2251	Rappture::Tooltip::tooltip cancel
	2252	.rappturetooltip configure -icon ""
	2253	}
	2254
	2255	#
	2256	# SetLegendTip --
	2257	#
	2258	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
[3442]	2259	set fname $_curFldName
[3330]	2260	set c $itk_component(view)
	2261	set w [winfo width $c]
	2262	set h [winfo height $c]
[3416]	2263
[3330]	2264	set font "Arial 8"
	2265	set lineht [font metrics $font -linespace]
	2266
[3416]	2267	set ih [image height $_image(legend)]
	2268	set iy [expr $y - ($lineht + 2)]
[3330]	2269
[3445]	2270	if { [string match "component*" $fname] } {
[3442]	2271	set title ""
[3330]	2272	} else {
[3442]	2273	if { [info exists _fields($fname)] } {
	2274	foreach { title units } $_fields($fname) break
	2275	if { $units != "" } {
	2276	set title [format "%s (%s)" $title $units]
	2277	}
	2278	} else {
	2279	set title $fname
[3330]	2280	}
	2281	}
[3416]	2282	# If there's a legend title, increase the offset by the line height.
	2283	if { $title != "" } {
[3442]	2284	incr iy -$lineht
[3416]	2285	}
[3330]	2286	# Make a swatch of the selected color
[3416]	2287	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
[3330]	2288	return
	2289	}
	2290	if { ![info exists _image(swatch)] } {
	2291	set _image(swatch) [image create photo -width 24 -height 24]
	2292	}
	2293	set color [eval format "\#%02x%02x%02x" $pixel]
	2294	$_image(swatch) put black -to 0 0 23 23
	2295	$_image(swatch) put $color -to 1 1 22 22
	2296	.rappturetooltip configure -icon $_image(swatch)
	2297
	2298	# Compute the value of the point
[3440]	2299	if { [info exists _limits($_curFldName)] } {
	2300	foreach { vmin vmax } $_limits($_curFldName) break
[3416]	2301	set t [expr 1.0 - (double($iy) / double($ih-1))]
[3440]	2302	set value [expr $t * ($vmax - $vmin) + $vmin]
[3330]	2303	} else {
	2304	set value 0.0
	2305	}
[3416]	2306	set tx [expr $x + 15]
	2307	set ty [expr $y - 5]
[3442]	2308	if { [info exists _isolines($y)] } {
	2309	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
	2310	} else {
	2311	Rappture::Tooltip::text $c [format "$title %g" $value]
	2312	}
[3416]	2313	Rappture::Tooltip::tooltip show $c +$tx,+$ty
[3330]	2314	}
	2315
	2316
	2317	# ----------------------------------------------------------------------
	2318	# USAGE: Slice move x\|y\|z <newval>
	2319	#
	2320	# Called automatically when the user drags the slider to move the
	2321	# cut plane that slices 3D data. Gets the current value from the
	2322	# slider and moves the cut plane to the appropriate point in the
	2323	# data set.
	2324	# ----------------------------------------------------------------------
	2325	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
	2326	switch -- $option {
	2327	"move" {
	2328	set axis [lindex $args 0]
	2329	set newval [lindex $args 1]
	2330	if {[llength $args] != 2} {
	2331	error "wrong # args: should be \"Slice move x\|y\|z newval\""
	2332	}
	2333	set newpos [expr {0.01*$newval}]
	2334	SendCmd "cutplane slice $axis $newpos"
	2335	}
	2336	"tooltip" {
	2337	set axis [lindex $args 0]
	2338	set val [$itk_component(${axis}position) get]
	2339	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
	2340	}
	2341	default {
	2342	error "bad option \"$option\": should be axis, move, or tooltip"
	2343	}
	2344	}
	2345	}
	2346
	2347	#
	2348	# ReceiveLegend --
	2349	#
	2350	# Invoked automatically whenever the "legend" command comes in from
	2351	# the rendering server. Indicates that binary image data with the
	2352	# specified <size> will follow.
	2353	#
	2354	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
	2355	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
	2356	set _title $title
	2357	regsub {\(mag\)} $title "" _title
	2358	if { [IsConnected] } {
	2359	set bytes [ReceiveBytes $size]
	2360	if { ![info exists _image(legend)] } {
	2361	set _image(legend) [image create photo]
	2362	}
	2363	$_image(legend) configure -data $bytes
	2364	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
[3442]	2365	if { [catch {DrawLegend} errs] != 0 } {
[3330]	2366	global errorInfo
	2367	puts stderr "errs=$errs errorInfo=$errorInfo"
	2368	}
	2369	}
	2370	}
	2371
	2372	#
	2373	# DrawLegend --
	2374	#
[3416]	2375	# Draws the legend in the own canvas on the right side of the plot area.
[3330]	2376	#
[3442]	2377	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
	2378	set fname $_curFldName
[3330]	2379	set c $itk_component(view)
	2380	set w [winfo width $c]
	2381	set h [winfo height $c]
	2382	set font "Arial 8"
	2383	set lineht [font metrics $font -linespace]
	2384
[3445]	2385	if { [string match "component*" $fname] } {
[3330]	2386	set title ""
	2387	} else {
[3442]	2388	if { [info exists _fields($fname)] } {
	2389	foreach { title units } $_fields($fname) break
[3330]	2390	if { $units != "" } {
	2391	set title [format "%s (%s)" $title $units]
	2392	}
	2393	} else {
[3442]	2394	set title $fname
[3330]	2395	}
	2396	}
	2397	set x [expr $w - 2]
[4201]	2398	if { !$_settings(-legendvisible) } {
[3330]	2399	$c delete legend
	2400	return
	2401	}
	2402	if { [$c find withtag "legend"] == "" } {
	2403	set y 2
	2404	# If there's a legend title, create a text item for the title.
[3547]	2405	$c create text $x $y \
[4351]	2406	-anchor ne \
	2407	-fill $itk_option(-plotforeground) -tags "title legend" \
	2408	-font $font
	2409	if { $title != "" } {
	2410	incr y $lineht
	2411	}
[3330]	2412	$c create text $x $y \
	2413	-anchor ne \
[3780]	2414	-fill $itk_option(-plotforeground) -tags "vmax legend" \
[3330]	2415	-font $font
	2416	incr y $lineht
	2417	$c create image $x $y \
	2418	-anchor ne \
	2419	-image $_image(legend) -tags "colormap legend"
[3442]	2420	$c create rectangle $x $y 1 1 \
	2421	-fill "" -outline "" -tags "sensor legend"
[3330]	2422	$c create text $x [expr {$h-2}] \
	2423	-anchor se \
[3780]	2424	-fill $itk_option(-plotforeground) -tags "vmin legend" \
[3330]	2425	-font $font
[3442]	2426	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
	2427	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
	2428	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
[3330]	2429	}
	2430	$c delete isoline
	2431	set x2 $x
	2432	set iw [image width $_image(legend)]
	2433	set ih [image height $_image(legend)]
	2434	set x1 [expr $x2 - ($iw*12)/10]
[4201]	2435	set color $_settings(-isolinecolor)
[3330]	2436	# Draw the isolines on the legend.
[3442]	2437	array unset _isolines
	2438	if { $color != "none" && [info exists _limits($_curFldName)] &&
[4201]	2439	$_settings(-numcontours) > 0 } {
[3538]	2440
	2441	foreach { vmin vmax } $_limits($_curFldName) break
	2442	set range [expr double($vmax - $vmin)]
	2443	if { $range <= 0.0 } {
	2444	set range 1.0; # Min is greater or equal to max.
	2445	}
	2446	set tags "isoline legend"
[3330]	2447	set offset [expr 2 + $lineht]
	2448	if { $title != "" } {
	2449	incr offset $lineht
	2450	}
[4752]	2451	foreach value $_contourList(values) {
[3543]	2452	set norm [expr 1.0 - (($value - $vmin) / $range)]
[3538]	2453	set y1 [expr int(round(($norm * $ih) + $offset))]
[3442]	2454	for { set off 0 } { $off < 3 } { incr off } {
	2455	set _isolines([expr $y1 + $off]) $value
	2456	set _isolines([expr $y1 - $off]) $value
[3440]	2457	}
[3538]	2458	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
[3440]	2459	}
[3330]	2460	}
	2461
	2462	$c bind title <ButtonPress> [itcl::code $this Combo post]
	2463	$c bind title <Enter> [itcl::code $this Combo activate]
	2464	$c bind title <Leave> [itcl::code $this Combo deactivate]
	2465	# Reset the item coordinates according the current size of the plot.
	2466	$c itemconfigure title -text $title
[3440]	2467	if { [info exists _limits($_curFldName)] } {
	2468	foreach { vmin vmax } $_limits($_curFldName) break
[3780]	2469	$c itemconfigure vmin -text [format %g $vmin]
	2470	$c itemconfigure vmax -text [format %g $vmax]
[3330]	2471	}
	2472	set y 2
	2473	# If there's a legend title, move the title to the correct position
	2474	if { $title != "" } {
[3547]	2475	$c itemconfigure title -text $title
[3330]	2476	$c coords title $x $y
	2477	incr y $lineht
[3547]	2478	$c raise title
[3330]	2479	}
[3780]	2480	$c coords vmax $x $y
[3330]	2481	incr y $lineht
	2482	$c coords colormap $x $y
[3442]	2483	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
	2484	$c raise sensor
[3780]	2485	$c coords vmin $x [expr {$h - 2}]
[3330]	2486	}
	2487
	2488	# ----------------------------------------------------------------------
	2489	# USAGE: _dropdown post
	2490	# USAGE: _dropdown unpost
	2491	# USAGE: _dropdown select
	2492	#
	2493	# Used internally to handle the dropdown list for this combobox. The
	2494	# post/unpost options are invoked when the list is posted or unposted
	2495	# to manage the relief of the controlling button. The select option
	2496	# is invoked whenever there is a selection from the list, to assign
	2497	# the value back to the gauge.
	2498	# ----------------------------------------------------------------------
	2499	itcl::body Rappture::VtkIsosurfaceViewer::Combo {option} {
	2500	set c $itk_component(view)
	2501	switch -- $option {
	2502	post {
	2503	foreach { x1 y1 x2 y2 } [$c bbox title] break
[3547]	2504	set cw [winfo width $itk_component(view)]
	2505	set mw [winfo reqwidth $itk_component(fieldmenu)]
	2506	set x1 [expr $cw - $mw]
[3330]	2507	set x [expr $x1 + [winfo rootx $itk_component(view)]]
	2508	set y [expr $y2 + [winfo rooty $itk_component(view)]]
	2509	tk_popup $itk_component(fieldmenu) $x $y
	2510	}
	2511	activate {
	2512	$c itemconfigure title -fill red
	2513	}
	2514	deactivate {
	2515	$c itemconfigure title -fill $itk_option(-plotforeground)
	2516	}
	2517	invoke {
[3409]	2518	$itk_component(field) value $_curFldLabel
[4201]	2519	AdjustSetting -field
[3330]	2520	}
	2521	default {
	2522	error "bad option \"$option\": should be post, unpost, select"
	2523	}
	2524	}
	2525	}
	2526
	2527	#
	2528	# SetCurrentColormap --
	2529	#
[3514]	2530	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
	2531	# Keep track of the colormaps that we build.
[3330]	2532	if { ![info exists _colormaps($name)] } {
[3514]	2533	BuildColormap $name
	2534	set _colormaps($name) 1
[3330]	2535	}
	2536	set _currentColormap $name
[3514]	2537	SendCmd "contour3d colormap $_currentColormap"
[4186]	2538	SendCmd "cutplane colormap $_currentColormap"
[3330]	2539	}
	2540
	2541	#
	2542	# BuildColormap --
	2543	#
[3514]	2544	# Build the designated colormap on the server.
	2545	#
	2546	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
	2547	set cmap [ColorsToColormap $name]
[3330]	2548	if { [llength $cmap] == 0 } {
	2549	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
	2550	}
	2551	set wmap "0.0 1.0 1.0 1.0"
	2552	SendCmd "colormap add $name { $cmap } { $wmap }"
	2553	}
	2554
[3517]	2555	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
	2556	array set positions {
	2557	front "1 0 0 0"
	2558	back "0 0 1 0"
	2559	left "0.707107 0 -0.707107 0"
	2560	right "0.707107 0 0.707107 0"
	2561	top "0.707107 -0.707107 0 0"
	2562	bottom "0.707107 0.707107 0 0"
	2563	}
[4752]	2564	foreach name { -qw -qx -qy -qz } value $positions($side) {
[3517]	2565	set _view($name) $value
	2566	}
[4752]	2567	set q [ViewToQuaternion]
[3517]	2568	$_arcball quaternion $q
[3536]	2569	SendCmd "camera orient $q"
	2570	SendCmd "camera reset"
[4752]	2571	set _view(-xpan) 0
	2572	set _view(-ypan) 0
	2573	set _view(-zoom) 1.0
[3517]	2574	}
[3538]	2575
[4752]	2576	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
[3538]	2577	if { ![info exists _limits($_curFldName)] } {
[4752]	2578	puts stderr "no _curFldName"
	2579	return ""
[3538]	2580	}
[4752]	2581	if { $_contourList(numLevels) < 1 } {
	2582	# There are tools that set 0 levels to get cutplanes only
	2583	#puts stderr "numLevels < 1"
	2584	return ""
[4186]	2585	}
[4752]	2586	if { [llength $_contourList(reqValues)] > 1 } {
	2587	set values $_contourList(reqValues)
	2588	} else {
	2589	foreach { vmin vmax } $_limits($_curFldName) break
	2590	set v [blt::vector create \#auto]
	2591	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
	2592	$v delete end 0
	2593	set values [$v range 0 end]
	2594	blt::vector destroy $v
	2595	}
	2596	set _contourList(values) $values
[3538]	2597	}
[4201]	2598
[4752]	2599	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
	2600	set _first $dataobj
	2601	$itk_component(field) choices delete 0 end
	2602	$itk_component(fieldmenu) delete 0 end
	2603	array unset _fields
	2604	set _curFldName ""
	2605	foreach cname [$_first components] {
	2606	foreach fname [$_first fieldnames $cname] {
	2607	if { [info exists _fields($fname)] } {
	2608	continue
	2609	}
	2610	foreach { label units components } \
	2611	[$_first fieldinfo $fname] break
	2612	$itk_component(field) choices insert end "$fname" "$label"
	2613	$itk_component(fieldmenu) add radiobutton -label "$label" \
	2614	-value $label -variable [itcl::scope _curFldLabel] \
	2615	-selectcolor red \
	2616	-activebackground $itk_option(-plotbackground) \
	2617	-activeforeground $itk_option(-plotforeground) \
	2618	-font "Arial 8" \
	2619	-command [itcl::code $this Combo invoke]
	2620	set _fields($fname) [list $label $units $components]
	2621	if { $_curFldName == "" } {
	2622	set _curFldName $fname
	2623	set _curFldLabel $label
	2624	}
	2625	}
	2626	}
	2627	$itk_component(field) value $_curFldLabel
	2628	if { ![info exists _limits($_curFldName)] } {
	2629	SendCmd "dataset maprange all"
	2630	} else {
	2631	set limits $_limits($_curFldName)
	2632	SendCmd "dataset maprange explicit $limits $_curFldName"
	2633	if { $limits != $_currentLimits } {
	2634	set _currentLimits $limits
	2635	EventuallyChangeContourLevels
	2636	}
	2637	}
	2638	}

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

Download in other formats: