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vtkisosurfaceviewer.tcl @ 5033

Last change on this file since 5033 was 5033, checked in by dkearney, 10 years ago

adding a -validatecommand to gauge.tcl so people can add their own validation
to the widget

using gauge widgets for the min/max fields in the settings tab of the
isosurface viewer instead of entry widgets so we can take advantage of input
validation and tooltip cues. tied the min/max editor values, that are above and
below the legend colormap, to the min/max gauge widgets so they all change at
the same time and read the same values. I think there is still a problem if the
min equals the max value, the legend will still show the same value above and
below the colormap. there may also be a race condition when first setting the
min and max gauge widget values because validation occurs. if the data's min is
greater than the default max of 1 (not sure where this comes from yet) or if
the data max is less than the default min of 0 (not sure where this comes from
either) then an error will be raised.

File size: 105.8 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkisosurfaceviewer - Vtk 3D contour object viewer
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) 2004-2014 HUBzero Foundation, LLC
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
64	# The following methods are only used by this class.
65	private method AdjustSetting {what {value ""}}
66	private method BuildAxisTab {}
67	private method BuildCameraTab {}
68	private method BuildColormap { name }
69	private method BuildCutplaneTab {}
70	private method BuildDownloadPopup { widget command }
71	private method BuildIsosurfaceTab {}
72	private method Connect {}
73	private method CurrentDatasets {args}
74	private method DisableMouseRotationBindings {}
75	private method Disconnect {}
76	private method DoChangeContourLevels {}
77	private method DoResize {}
78	private method DoRotate {}
79	private method DrawLegend {}
80	private method EnterLegend { x y }
81	private method EventuallyChangeContourLevels {}
82	private method EventuallyRequestLegend {}
83	private method EventuallyResize { w h }
84	private method EventuallyRotate { q }
85	private method EventuallySetCutplane { axis args }
86	private method GenerateContourList {}
87	private method GetImage { args }
88	private method GetVtkData { args }
89	private method InitSettings { args }
90	private method IsValidObject { dataobj }
91	private method LeaveLegend {}
92	private method LegendB1Motion {status x y}
93	private method LegendPointToValue { x y }
94	private method LegendProbeSingleContour { x y }
95	private method LegendRangeAction { option args }
96	private method LegendRangeValidate { widget which value }
97	private method LegendTitleAction { option }
98	private method MotionLegend { x y }
99	private method MouseOver2Which {}
100	private method Pan {option x y}
101	private method PanCamera {}
102	private method Pick {x y}
103	private method QuaternionToView { q } {
104	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
105	}
106	private method Rebuild {}
107	private method ReceiveDataset { args }
108	private method ReceiveImage { args }
109	private method ReceiveLegend { colormap title vmin vmax size }
110	private method RequestLegend {}
111	private method Rotate {option x y}
112	private method SetCurrentColormap { color }
113	private method SetCurrentFieldName { dataobj }
114	private method SetLegendTip { x y }
115	private method SetObjectStyle { dataobj comp }
116	private method SetOrientation { side }
117	private method SetupMouseRotationBindings {}
118	private method SetupMousePanningBindings {}
119	private method SetupKeyboardBindings {}
120	private method Slice {option args}
121	private method ViewToQuaternion {} {
122	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
123	}
124	private method Zoom {option}
125
126	private variable _arcball ""
127
128	private variable _dlist "" ; # list of data objects
129	private variable _obj2datasets
130	private variable _obj2ovride ; # maps dataobj => style override
131	private variable _datasets ; # contains all the dataobj-component
132	; # datasets in the server
133	private variable _colormaps ; # contains all the colormaps
134	; # in the server.
135	# The name of the current colormap used. The colormap is global to all
136	# heightmaps displayed.
137	private variable _currentColormap ""
138	private variable _currentNumContours -1
139
140	private variable _dataset2style ;# maps dataobj-component to transfunc
141
142	private variable _click ; # info used for rotate operations
143	private variable _limits ; # autoscale min/max for all axes
144	private variable _view ; # view params for 3D view
145	private variable _settings
146	private variable _style; # Array of current component styles.
147	private variable _changed
148	private variable _initialStyle; # Array of initial component styles.
149	private variable _reset 1; # indicates if camera needs to be reset
150	# to starting position.
151
152	private variable _first "" ; # This is the topmost dataset.
153	private variable _start 0
154	private variable _title ""
155	private variable _isolines
156	private variable _contourList
157	private variable _currentLimits ""
158	private variable _widget
159
160	common _downloadPopup; # download options from popup
161	private common _hardcopy
162	private variable _width 0
163	private variable _height 0
164	private variable _resizePending 0
165	private variable _rotatePending 0
166	private variable _cutplanePending 0
167	private variable _legendPending 0
168	private variable _field ""
169	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
170	private variable _fieldNames {}
171	private variable _fields
172	private variable _curFldName ""
173	private variable _curFldLabel ""
174
175	private variable _mouseOver ""; # what called LegendRangeAction, vmin or vmax
176	}
177
178	itk::usual VtkIsosurfaceViewer {
179	keep -background -foreground -cursor -font
180	keep -plotbackground -plotforeground
181	}
182
183	# ----------------------------------------------------------------------
184	# CONSTRUCTOR
185	# ----------------------------------------------------------------------
186	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
187	package require vtk
188	set _serverType "vtkvis"
189
190	# Rebuild event
191	$_dispatcher register !rebuild
192	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
193
194	# Resize event
195	$_dispatcher register !resize
196	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
197
198	# Rotate event
199	$_dispatcher register !rotate
200	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
201
202	# Legend event
203	$_dispatcher register !legend
204	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
205
206	# Contour levels event
207	$_dispatcher register !contours
208	$_dispatcher dispatch $this !contours \
209	"[itcl::code $this DoChangeContourLevels]; list"
210
211	# X-Cutplane event
212	$_dispatcher register !xcutplane
213	$_dispatcher dispatch $this !xcutplane \
214	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
215
216	# Y-Cutplane event
217	$_dispatcher register !ycutplane
218	$_dispatcher dispatch $this !ycutplane \
219	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
220
221	# Z-Cutplane event
222	$_dispatcher register !zcutplane
223	$_dispatcher dispatch $this !zcutplane \
224	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
225
226	#
227	# Populate parser with commands handle incoming requests
228	#
229	$_parser alias image [itcl::code $this ReceiveImage]
230	$_parser alias dataset [itcl::code $this ReceiveDataset]
231	$_parser alias legend [itcl::code $this ReceiveLegend]
232
233	# Initialize the view to some default parameters.
234	array set _view {
235	-ortho 0
236	-qw 0.853553
237	-qx -0.353553
238	-qy 0.353553
239	-qz 0.146447
240	-xpan 0
241	-ypan 0
242	-zoom 1.0
243	}
244	set _arcball [blt::arcball create 100 100]
245	$_arcball quaternion [ViewToQuaternion]
246
247	array set _contourList {
248	numLevels 10
249	reqValues ""
250	updatePending 0
251	values ""
252	}
253	array set _settings {
254	-axesvisible 1
255	-axislabels 1
256	-axisminorticks 1
257	-axismode "static"
258	-background black
259	-colormap BCGYR
260	-colormapvisible 1
261	-customrange 0
262	-cutplaneedges 0
263	-cutplanelighting 1
264	-cutplaneopacity 1.0
265	-cutplanepreinterp 1
266	-cutplanesvisible 0
267	-cutplanewireframe 0
268	-field "Default"
269	-isolinecolor white
270	-isosurfaceedges 0
271	-isosurfacelighting 1
272	-isosurfaceopacity 0.6
273	-isosurfacevisible 1
274	-isosurfacewireframe 0
275	-legendvisible 1
276	-numcontours 10
277	-outline 0
278	-xcutplaneposition 50
279	-xcutplanevisible 1
280	-xgrid 0
281	-ycutplaneposition 50
282	-ycutplanevisible 1
283	-ygrid 0
284	-zcutplaneposition 50
285	-zcutplanevisible 1
286	-zgrid 0
287	}
288	array set _changed {
289	-colormap 0
290	-isosurfaceopacity 0
291	-cutplaneopacity 0
292	-numcontours 0
293	}
294	array set _widget {
295	-isosurfaceopacity 60
296	-cutplaneopacity 100
297	}
298
299	itk_component add view {
300	canvas $itk_component(plotarea).view \
301	-highlightthickness 0 -borderwidth 0
302	} {
303	usual
304	ignore -highlightthickness -borderwidth -background
305	}
306
307	itk_component add fieldmenu {
308	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
309	-tearoff 0
310	} {
311	usual
312	ignore -background -foreground -relief -tearoff
313	}
314
315	# add an editor for adjusting the legend min and max values
316	itk_component add editor {
317	Rappture::Editor $itk_interior.editor \
318	-activatecommand [itcl::code $this LegendRangeAction activate] \
319	-validatecommand [itcl::code $this LegendRangeAction validate] \
320	-applycommand [itcl::code $this LegendRangeAction apply]
321	}
322
323	set c $itk_component(view)
324	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
325	bind $c <4> [itcl::code $this Zoom in 0.25]
326	bind $c <5> [itcl::code $this Zoom out 0.25]
327	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
328	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
329	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
330	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
331	bind $c <Enter> "focus %W"
332	bind $c <Control-F1> [itcl::code $this ToggleConsole]
333
334	# Fix the scrollregion in case we go off screen
335	$c configure -scrollregion [$c bbox all]
336
337	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
338	set _map(cwidth) -1
339	set _map(cheight) -1
340	set _map(zoom) 1.0
341	set _map(original) ""
342
343	set f [$itk_component(main) component controls]
344	itk_component add reset {
345	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
346	-highlightthickness 0 \
347	-image [Rappture::icon reset-view] \
348	-command [itcl::code $this Zoom reset]
349	} {
350	usual
351	ignore -highlightthickness
352	}
353	pack $itk_component(reset) -side top -padx 2 -pady 2
354	Rappture::Tooltip::for $itk_component(reset) \
355	"Reset the view to the default zoom level"
356
357	itk_component add zoomin {
358	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
359	-highlightthickness 0 \
360	-image [Rappture::icon zoom-in] \
361	-command [itcl::code $this Zoom in]
362	} {
363	usual
364	ignore -highlightthickness
365	}
366	pack $itk_component(zoomin) -side top -padx 2 -pady 2
367	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
368
369	itk_component add zoomout {
370	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
371	-highlightthickness 0 \
372	-image [Rappture::icon zoom-out] \
373	-command [itcl::code $this Zoom out]
374	} {
375	usual
376	ignore -highlightthickness
377	}
378	pack $itk_component(zoomout) -side top -padx 2 -pady 2
379	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
380
381	itk_component add contour {
382	Rappture::PushButton $f.contour \
383	-onimage [Rappture::icon volume-on] \
384	-offimage [Rappture::icon volume-off] \
385	-variable [itcl::scope _settings(-isosurfacevisible)] \
386	-command [itcl::code $this AdjustSetting -isosurfacevisible]
387	}
388	$itk_component(contour) select
389	Rappture::Tooltip::for $itk_component(contour) \
390	"Hide the isosurface"
391	pack $itk_component(contour) -padx 2 -pady 2
392
393	itk_component add cutplane {
394	Rappture::PushButton $f.cutplane \
395	-onimage [Rappture::icon cutbutton] \
396	-offimage [Rappture::icon cutbutton] \
397	-variable [itcl::scope _settings(-cutplanesvisible)] \
398	-command [itcl::code $this AdjustSetting -cutplanesvisible]
399	}
400	Rappture::Tooltip::for $itk_component(cutplane) \
401	"Show the cutplanes"
402	pack $itk_component(cutplane) -padx 2 -pady 2
403
404
405	if { [catch {
406	BuildIsosurfaceTab
407	BuildCutplaneTab
408	BuildAxisTab
409	BuildCameraTab
410	} errs] != 0 } {
411	puts stderr errs=$errs
412	}
413
414	# Legend
415	set _image(legend) [image create photo]
416	itk_component add legend {
417	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
418	} {
419	usual
420	ignore -highlightthickness
421	rename -background -plotbackground plotBackground Background
422	}
423
424	# Hack around the Tk panewindow. The problem is that the requested
425	# size of the 3d view isn't set until an image is retrieved from
426	# the server. So the panewindow uses the tiny size.
427	set w 10000
428	pack forget $itk_component(view)
429	blt::table $itk_component(plotarea) \
430	0,0 $itk_component(view) -fill both -reqwidth $w
431	blt::table configure $itk_component(plotarea) c1 -resize none
432
433	SetupMouseRotationBindings
434	SetupMousePanningBindings
435	SetupKeyboardBindings
436
437
438	#bind $itk_component(view) <ButtonRelease-3> \
439	# [itcl::code $this Pick %x %y]
440
441
442	if {[string equal "x11" [tk windowingsystem]]} {
443	# Bindings for zoom via mouse
444	bind $itk_component(view) <4> [itcl::code $this Zoom out]
445	bind $itk_component(view) <5> [itcl::code $this Zoom in]
446	}
447
448	set _image(download) [image create photo]
449
450	eval itk_initialize $args
451
452	EnableWaitDialog 500
453	Connect
454	# FIXME: Removing this update breaks wizard mode (see examples/3D)
455	# However, it also allows an error in the initialization order
456	# where FieldResult::add is called from ResultViewer before this
457	# constructor is completed.
458	#update
459	}
460
461	# ----------------------------------------------------------------------
462	# DESTRUCTOR
463	# ----------------------------------------------------------------------
464	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
465	Disconnect
466	image delete $_image(plot)
467	image delete $_image(download)
468	catch { blt::arcball destroy $_arcball }
469	}
470
471	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseRotationBindings {} {
472	# Bindings for rotation via mouse
473	bind $itk_component(view) <ButtonPress-1> \
474	[itcl::code $this Rotate click %x %y]
475	bind $itk_component(view) <B1-Motion> \
476	[itcl::code $this Rotate drag %x %y]
477	bind $itk_component(view) <ButtonRelease-1> \
478	[itcl::code $this Rotate release %x %y]
479	}
480
481	itcl::body Rappture::VtkIsosurfaceViewer::DisableMouseRotationBindings {} {
482	# Bindings for rotation via mouse
483	bind $itk_component(view) <ButtonPress-1> ""
484	bind $itk_component(view) <B1-Motion> ""
485	bind $itk_component(view) <ButtonRelease-1> ""
486	}
487
488	itcl::body Rappture::VtkIsosurfaceViewer::SetupMousePanningBindings {} {
489	# Bindings for panning via mouse
490	bind $itk_component(view) <ButtonPress-2> \
491	[itcl::code $this Pan click %x %y]
492	bind $itk_component(view) <B2-Motion> \
493	[itcl::code $this Pan drag %x %y]
494	bind $itk_component(view) <ButtonRelease-2> \
495	[itcl::code $this Pan release %x %y]
496	}
497
498	itcl::body Rappture::VtkIsosurfaceViewer::SetupKeyboardBindings {} {
499	# Bindings for panning via keyboard
500	bind $itk_component(view) <KeyPress-Left> \
501	[itcl::code $this Pan set -10 0]
502	bind $itk_component(view) <KeyPress-Right> \
503	[itcl::code $this Pan set 10 0]
504	bind $itk_component(view) <KeyPress-Up> \
505	[itcl::code $this Pan set 0 -10]
506	bind $itk_component(view) <KeyPress-Down> \
507	[itcl::code $this Pan set 0 10]
508	bind $itk_component(view) <Shift-KeyPress-Left> \
509	[itcl::code $this Pan set -2 0]
510	bind $itk_component(view) <Shift-KeyPress-Right> \
511	[itcl::code $this Pan set 2 0]
512	bind $itk_component(view) <Shift-KeyPress-Up> \
513	[itcl::code $this Pan set 0 -2]
514	bind $itk_component(view) <Shift-KeyPress-Down> \
515	[itcl::code $this Pan set 0 2]
516
517	# Bindings for zoom via keyboard
518	bind $itk_component(view) <KeyPress-Prior> \
519	[itcl::code $this Zoom out]
520	bind $itk_component(view) <KeyPress-Next> \
521	[itcl::code $this Zoom in]
522
523	bind $itk_component(view) <Enter> "focus $itk_component(view)"
524	}
525
526	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
527	if { $_width < 2 } {
528	set _width 500
529	}
530	if { $_height < 2 } {
531	set _height 500
532	}
533	set _start [clock clicks -milliseconds]
534	SendCmd "screen size $_width $_height"
535
536	EventuallyRequestLegend
537	set _resizePending 0
538	}
539
540	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
541	GenerateContourList
542	SendCmd [list contour3d contourlist $_contourList(values)]
543	SendCmd [list camera reset]
544	DrawLegend
545	set _contourList(updatePending) 0
546	}
547
548	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
549	SendCmd "camera orient [ViewToQuaternion]"
550	set _rotatePending 0
551	}
552
553	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
554	if { !$_legendPending } {
555	set _legendPending 1
556	$_dispatcher event -idle !legend
557	}
558	}
559
560	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
561	set _width $w
562	set _height $h
563	$_arcball resize $w $h
564	if { !$_resizePending } {
565	set _resizePending 1
566	$_dispatcher event -after 400 !resize
567	}
568	}
569
570	set rotate_delay 100
571
572	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
573	QuaternionToView $q
574	if { !$_rotatePending } {
575	set _rotatePending 1
576	global rotate_delay
577	$_dispatcher event -after $rotate_delay !rotate
578	}
579	}
580
581	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
582	if { !$_cutplanePending } {
583	set _cutplanePending 1
584	$_dispatcher event -after 100 !${axis}cutplane
585	}
586	}
587
588	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
589	set n $_contourList(numLevels)
590	set _contourList(values) ""
591	if { !$_contourList(updatePending) } {
592	set _contourList(updatePending) 1
593	global rotate_delay
594	$_dispatcher event -after $rotate_delay !contours
595	}
596	}
597
598	# ----------------------------------------------------------------------
599	# USAGE: add <dataobj> ?<settings>?
600	#
601	# Clients use this to add a data object to the plot. The optional
602	# <settings> are used to configure the plot. Allowed settings are
603	# -color, -brightness, -width, -linestyle, and -raise.
604	# ----------------------------------------------------------------------
605	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
606	if { ![$dataobj isvalid] } {
607	return; # Object doesn't contain valid data.
608	}
609	array set params {
610	-color auto
611	-width 1
612	-linestyle solid
613	-brightness 0
614	-raise 0
615	-description ""
616	-param ""
617	-type ""
618	}
619	array set params $settings
620	set params(-description) ""
621	set params(-param) ""
622	array set params $settings
623
624	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
625	# can't handle -autocolors yet
626	set params(-color) black
627	}
628	set pos [lsearch -exact $_dlist $dataobj]
629	if {$pos < 0} {
630	lappend _dlist $dataobj
631	}
632	set _obj2ovride($dataobj-color) $params(-color)
633	set _obj2ovride($dataobj-width) $params(-width)
634	set _obj2ovride($dataobj-raise) $params(-raise)
635	$_dispatcher event -idle !rebuild
636	}
637
638	# ----------------------------------------------------------------------
639	# USAGE: delete ?<dataobj1> <dataobj2> ...?
640	#
641	# Clients use this to delete a dataobj from the plot. If no dataobjs
642	# are specified, then all dataobjs are deleted. No data objects are
643	# deleted. They are only removed from the display list.
644	#
645	# ----------------------------------------------------------------------
646	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
647	if { [llength $args] == 0} {
648	set args $_dlist
649	}
650	# Delete all specified dataobjs
651	set changed 0
652	foreach dataobj $args {
653	set pos [lsearch -exact $_dlist $dataobj]
654	if { $pos < 0 } {
655	continue; # Don't know anything about it.
656	}
657	# Remove it from the dataobj list.
658	set _dlist [lreplace $_dlist $pos $pos]
659	array unset _obj2ovride $dataobj-*
660	array unset _settings $dataobj-*
661	set changed 1
662	}
663	# If anything changed, then rebuild the plot
664	if { $changed } {
665	$_dispatcher event -idle !rebuild
666	}
667	}
668
669	# ----------------------------------------------------------------------
670	# USAGE: get ?-objects?
671	# USAGE: get ?-visible?
672	# USAGE: get ?-image view?
673	#
674	# Clients use this to query the list of objects being plotted, in
675	# order from bottom to top of this result. The optional "-image"
676	# flag can also request the internal images being shown.
677	# ----------------------------------------------------------------------
678	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
679	if {[llength $args] == 0} {
680	set args "-objects"
681	}
682
683	set op [lindex $args 0]
684	switch -- $op {
685	"-objects" {
686	# put the dataobj list in order according to -raise options
687	set dlist {}
688	foreach dataobj $_dlist {
689	if { ![IsValidObject $dataobj] } {
690	continue
691	}
692	if {[info exists _obj2ovride($dataobj-raise)] &&
693	$_obj2ovride($dataobj-raise)} {
694	set dlist [linsert $dlist 0 $dataobj]
695	} else {
696	lappend dlist $dataobj
697	}
698	}
699	return $dlist
700	}
701	"-visible" {
702	set dlist {}
703	foreach dataobj $_dlist {
704	if { ![IsValidObject $dataobj] } {
705	continue
706	}
707	if { ![info exists _obj2ovride($dataobj-raise)] } {
708	# No setting indicates that the object isn't visible.
709	continue
710	}
711	# Otherwise use the -raise parameter to put the object to
712	# the front of the list.
713	if { $_obj2ovride($dataobj-raise) } {
714	set dlist [linsert $dlist 0 $dataobj]
715	} else {
716	lappend dlist $dataobj
717	}
718	}
719	return $dlist
720	}
721	-image {
722	if {[llength $args] != 2} {
723	error "wrong # args: should be \"get -image view\""
724	}
725	switch -- [lindex $args end] {
726	view {
727	return $_image(plot)
728	}
729	default {
730	error "bad image name \"[lindex $args end]\": should be view"
731	}
732	}
733	}
734	default {
735	error "bad option \"$op\": should be -objects or -image"
736	}
737	}
738	}
739
740	# ----------------------------------------------------------------------
741	# USAGE: scale ?<data1> <data2> ...?
742	#
743	# Sets the default limits for the overall plot according to the
744	# limits of the data for all of the given <data> objects. This
745	# accounts for all objects--even those not showing on the screen.
746	# Because of this, the limits are appropriate for all objects as
747	# the user scans through data in the ResultSet viewer.
748	# ----------------------------------------------------------------------
749	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
750	foreach dataobj $args {
751	if { ![$dataobj isvalid] } {
752	continue; # Object doesn't contain valid data.
753	}
754	foreach axis { x y z } {
755	set lim [$dataobj limits $axis]
756	if { ![info exists _limits($axis)] } {
757	set _limits($axis) $lim
758	continue
759	}
760	foreach {min max} $lim break
761	foreach {amin amax} $_limits($axis) break
762	if { $amin > $min } {
763	set amin $min
764	}
765	if { $amax < $max } {
766	set amax $max
767	}
768	set _limits($axis) [list $amin $amax]
769	}
770	foreach { fname lim } [$dataobj fieldlimits] {
771	if { ![info exists _limits($fname)] } {
772	set _limits($fname) $lim
773
774	# set reasonable defaults for
775	# customrangevmin and customrangevmax
776	foreach {min max} $lim break
777	$itk_component(min) value $min
778	$itk_component(max) value $max
779
780	continue
781	}
782	foreach {min max} $lim break
783	foreach {fmin fmax} $_limits($fname) break
784	if { ! $_settings(-customrange) } {
785	$itk_component(min) value $fmin
786	$itk_component(max) value $fmax
787	}
788	if { $fmin > $min } {
789	set fmin $min
790	}
791	if { $fmax < $max } {
792	set fmax $max
793	}
794	set _limits($fname) [list $fmin $fmax]
795	}
796	}
797	}
798
799	# ----------------------------------------------------------------------
800	# USAGE: download coming
801	# USAGE: download controls <downloadCommand>
802	# USAGE: download now
803	#
804	# Clients use this method to create a downloadable representation
805	# of the plot. Returns a list of the form {ext string}, where
806	# "ext" is the file extension (indicating the type of data) and
807	# "string" is the data itself.
808	# ----------------------------------------------------------------------
809	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
810	switch $option {
811	coming {
812	if {[catch {
813	blt::winop snap $itk_component(plotarea) $_image(download)
814	}]} {
815	$_image(download) configure -width 1 -height 1
816	$_image(download) put #000000
817	}
818	}
819	controls {
820	set popup .vtkviewerdownload
821	if { ![winfo exists .vtkviewerdownload] } {
822	set inner [BuildDownloadPopup $popup [lindex $args 0]]
823	} else {
824	set inner [$popup component inner]
825	}
826	set _downloadPopup(image_controls) $inner.image_frame
827	set num [llength [get]]
828	set num [expr {($num == 1) ? "1 result" : "$num results"}]
829	set word [Rappture::filexfer::label downloadWord]
830	$inner.summary configure -text "$word $num in the following format:"
831	update idletasks ;# Fix initial sizes
832	return $popup
833	}
834	now {
835	set popup .vtkviewerdownload
836	if {[winfo exists .vtkviewerdownload]} {
837	$popup deactivate
838	}
839	switch -- $_downloadPopup(format) {
840	"image" {
841	return [$this GetImage [lindex $args 0]]
842	}
843	"vtk" {
844	return [$this GetVtkData [lindex $args 0]]
845	}
846	}
847	return ""
848	}
849	default {
850	error "bad option \"$option\": should be coming, controls, now"
851	}
852	}
853	}
854
855	# ----------------------------------------------------------------------
856	# USAGE: Connect ?<host:port>,<host:port>...?
857	#
858	# Clients use this method to establish a connection to a new
859	# server, or to reestablish a connection to the previous server.
860	# Any existing connection is automatically closed.
861	# ----------------------------------------------------------------------
862	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
863	set _hosts [GetServerList "vtkvis"]
864	if { "" == $_hosts } {
865	return 0
866	}
867	set result [VisViewer::Connect $_hosts]
868	if { $result } {
869	if { $_reportClientInfo } {
870	# Tell the server the viewer, hub, user and session.
871	# Do this immediately on connect before buffering any commands
872	global env
873
874	set info {}
875	set user "???"
876	if { [info exists env(USER)] } {
877	set user $env(USER)
878	}
879	set session "???"
880	if { [info exists env(SESSION)] } {
881	set session $env(SESSION)
882	}
883	lappend info "version" "$Rappture::version"
884	lappend info "build" "$Rappture::build"
885	lappend info "svnurl" "$Rappture::svnurl"
886	lappend info "installdir" "$Rappture::installdir"
887	lappend info "hub" [exec hostname]
888	lappend info "client" "vtkisosurfaceviewer"
889	lappend info "user" $user
890	lappend info "session" $session
891	SendCmd "clientinfo [list $info]"
892	}
893
894	set w [winfo width $itk_component(view)]
895	set h [winfo height $itk_component(view)]
896	EventuallyResize $w $h
897	}
898	return $result
899	}
900
901	#
902	# isconnected --
903	#
904	# Indicates if we are currently connected to the visualization server.
905	#
906	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
907	return [VisViewer::IsConnected]
908	}
909
910	#
911	# disconnect --
912	#
913	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
914	Disconnect
915	set _reset 1
916	}
917
918	#
919	# Disconnect --
920	#
921	# Clients use this method to disconnect from the current rendering
922	# server.
923	#
924	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
925	VisViewer::Disconnect
926
927	$_dispatcher cancel !rebuild
928	$_dispatcher cancel !resize
929	$_dispatcher cancel !rotate
930	$_dispatcher cancel !xcutplane
931	$_dispatcher cancel !ycutplane
932	$_dispatcher cancel !zcutplane
933	$_dispatcher cancel !legend
934	# disconnected -- no more data sitting on server
935	set _outbuf ""
936	array unset _datasets
937	array unset _data
938	array unset _colormaps
939	array unset _dataset2style
940	array unset _obj2datasets
941	}
942
943	# ----------------------------------------------------------------------
944	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
945	#
946	# Invoked automatically whenever the "image" command comes in from
947	# the rendering server. Indicates that binary image data with the
948	# specified <size> will follow.
949	# ----------------------------------------------------------------------
950	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
951	array set info {
952	-token "???"
953	-bytes 0
954	-type image
955	}
956	array set info $args
957	set bytes [ReceiveBytes $info(-bytes)]
958	if { $info(-type) == "image" } {
959	if 0 {
960	set f [open "last.ppm" "w"]
961	fconfigure $f -encoding binary
962	puts -nonewline $f $bytes
963	close $f
964	}
965	$_image(plot) configure -data $bytes
966	#set time [clock seconds]
967	#set date [clock format $time]
968	#set w [image width $_image(plot)]
969	#set h [image height $_image(plot)]
970	#puts stderr "$date: received image ${w}x${h} image"
971	if { $_start > 0 } {
972	set finish [clock clicks -milliseconds]
973	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
974	set _start 0
975	}
976	} elseif { $info(type) == "print" } {
977	set tag $this-print-$info(-token)
978	set _hardcopy($tag) $bytes
979	}
980	}
981
982	#
983	# ReceiveDataset --
984	#
985	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
986	if { ![isconnected] } {
987	return
988	}
989	set option [lindex $args 0]
990	switch -- $option {
991	"scalar" {
992	set option [lindex $args 1]
993	switch -- $option {
994	"world" {
995	foreach { x y z value tag } [lrange $args 2 end] break
996	}
997	"pixel" {
998	foreach { x y value tag } [lrange $args 2 end] break
999	}
1000	}
1001	}
1002	"vector" {
1003	set option [lindex $args 1]
1004	switch -- $option {
1005	"world" {
1006	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
1007	}
1008	"pixel" {
1009	foreach { x y vx vy vz tag } [lrange $args 2 end] break
1010	}
1011	}
1012	}
1013	"names" {
1014	foreach { name } [lindex $args 1] {
1015	#puts stderr "Dataset: $name"
1016	}
1017	}
1018	default {
1019	error "unknown dataset option \"$option\" from server"
1020	}
1021	}
1022	}
1023
1024	# ----------------------------------------------------------------------
1025	# USAGE: Rebuild
1026	#
1027	# Called automatically whenever something changes that affects the
1028	# data in the widget. Clears any existing data and rebuilds the
1029	# widget to display new data.
1030	# ----------------------------------------------------------------------
1031	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
1032	set w [winfo width $itk_component(view)]
1033	set h [winfo height $itk_component(view)]
1034	if { $w < 2 \|\| $h < 2 } {
1035	$_dispatcher event -idle !rebuild
1036	return
1037	}
1038
1039	# Turn on buffering of commands to the server. We don't want to
1040	# be preempted by a server disconnect/reconnect (which automatically
1041	# generates a new call to Rebuild).
1042	StartBufferingCommands
1043
1044	if { $_reset } {
1045	set _width $w
1046	set _height $h
1047	$_arcball resize $w $h
1048	DoResize
1049
1050	# Reset the camera and other view parameters
1051	$_arcball quaternion [ViewToQuaternion]
1052	InitSettings -ortho
1053	DoRotate
1054	PanCamera
1055	set _first ""
1056	InitSettings -background \
1057	-xgrid -ygrid -zgrid -axismode \
1058	-axesvisible -axislabels -axisminorticks
1059	#SendCmd "axis lformat all %g"
1060	StopBufferingCommands
1061	SendCmd "imgflush"
1062	StartBufferingCommands
1063	}
1064	set _first ""
1065	SendCmd "dataset visible 0"
1066	eval scale $_dlist
1067	foreach dataobj [get -objects] {
1068	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1069	set _first $dataobj
1070	SetCurrentFieldName $dataobj
1071	}
1072	set _obj2datasets($dataobj) ""
1073	foreach comp [$dataobj components] {
1074	set tag $dataobj-$comp
1075	if { ![info exists _datasets($tag)] } {
1076	set bytes [$dataobj vtkdata $comp]
1077	if 0 {
1078	set f [open "/tmp/isosurface.vtk" "w"]
1079	fconfigure $f -translation binary -encoding binary
1080	puts -nonewline $f $bytes
1081	close $f
1082	}
1083	set length [string length $bytes]
1084	if { $_reportClientInfo } {
1085	set info {}
1086	lappend info "tool_id" [$dataobj hints toolid]
1087	lappend info "tool_name" [$dataobj hints toolname]
1088	lappend info "tool_title" [$dataobj hints tooltitle]
1089	lappend info "tool_command" [$dataobj hints toolcommand]
1090	lappend info "tool_revision" [$dataobj hints toolrevision]
1091	lappend info "dataset_label" [$dataobj hints label]
1092	lappend info "dataset_size" $length
1093	lappend info "dataset_tag" $tag
1094	SendCmd "clientinfo [list $info]"
1095	}
1096	SendCmd "dataset add $tag data follows $length"
1097	append _outbuf $bytes
1098	set _datasets($tag) 1
1099	SetObjectStyle $dataobj $comp
1100	}
1101	lappend _obj2datasets($dataobj) $tag
1102	if { [info exists _obj2ovride($dataobj-raise)] } {
1103	SendCmd "contour3d visible 1 $tag"
1104	}
1105	}
1106	}
1107
1108	InitSettings -cutplanesvisible -isosurfacevisible -outline
1109	if { $_reset } {
1110	# These are settings that rely on a dataset being loaded.
1111	InitSettings \
1112	-isosurfacelighting \
1113	-field \
1114	-isosurfacevisible \
1115	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1116	-isosurfacewireframe \
1117	-cutplanesvisible \
1118	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1119	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1120	-cutplanepreinterp -numcontours
1121
1122	Zoom reset
1123	foreach axis { x y z } {
1124	# Another problem fixed by a <view>. We looking into a data
1125	# object for the name of the axes. This should be global to
1126	# the viewer itself.
1127	set label [$_first hints ${axis}label]
1128	if { $label == "" } {
1129	set label [string toupper $axis]
1130	}
1131	# May be a space in the axis label
1132	SendCmd [list axis name $axis $label]
1133	}
1134	if { [array size _fields] < 2 } {
1135	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1136	}
1137	set _reset 0
1138	}
1139	# Redraw the legend even if we're using the same colormap. The position
1140	# of the isolines may have changed because the range of data changed.
1141	DrawLegend
1142
1143	# Actually write the commands to the server socket. If it fails, we don't
1144	# care. We're finished here.
1145	blt::busy hold $itk_component(hull)
1146	StopBufferingCommands; # Turn off buffering and send commands.
1147	blt::busy release $itk_component(hull)
1148	}
1149
1150	# ----------------------------------------------------------------------
1151	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1152	#
1153	# Returns a list of server IDs for the current datasets being displayed. This
1154	# is normally a single ID, but it might be a list of IDs if the current data
1155	# object has multiple components.
1156	# ----------------------------------------------------------------------
1157	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1158	set flag [lindex $args 0]
1159	switch -- $flag {
1160	"-all" {
1161	if { [llength $args] > 1 } {
1162	error "CurrentDatasets: can't specify dataobj after \"-all\""
1163	}
1164	set dlist [get -objects]
1165	}
1166	"-visible" {
1167	if { [llength $args] > 1 } {
1168	set dlist {}
1169	set args [lrange $args 1 end]
1170	foreach dataobj $args {
1171	if { [info exists _obj2ovride($dataobj-raise)] } {
1172	lappend dlist $dataobj
1173	}
1174	}
1175	} else {
1176	set dlist [get -visible]
1177	}
1178	}
1179	default {
1180	set dlist $args
1181	}
1182	}
1183	set rlist ""
1184	foreach dataobj $dlist {
1185	foreach comp [$dataobj components] {
1186	set tag $dataobj-$comp
1187	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1188	lappend rlist $tag
1189	}
1190	}
1191	}
1192	return $rlist
1193	}
1194
1195	# ----------------------------------------------------------------------
1196	# USAGE: Zoom in
1197	# USAGE: Zoom out
1198	# USAGE: Zoom reset
1199	#
1200	# Called automatically when the user clicks on one of the zoom
1201	# controls for this widget. Changes the zoom for the current view.
1202	# ----------------------------------------------------------------------
1203	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1204	switch -- $option {
1205	"in" {
1206	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1207	SendCmd "camera zoom $_view(-zoom)"
1208	}
1209	"out" {
1210	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1211	SendCmd "camera zoom $_view(-zoom)"
1212	}
1213	"reset" {
1214	array set _view {
1215	-qw 0.853553
1216	-qx -0.353553
1217	-qy 0.353553
1218	-qz 0.146447
1219	-xpan 0
1220	-ypan 0
1221	-zoom 1.0
1222	}
1223	if { $_first != "" } {
1224	set location [$_first hints camera]
1225	if { $location != "" } {
1226	array set _view $location
1227	}
1228	}
1229	$_arcball quaternion [ViewToQuaternion]
1230	DoRotate
1231	SendCmd "camera reset"
1232	}
1233	}
1234	}
1235
1236	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1237	set x $_view(-xpan)
1238	set y $_view(-ypan)
1239	SendCmd "camera pan $x $y"
1240	}
1241
1242	# ----------------------------------------------------------------------
1243	# USAGE: Rotate click <x> <y>
1244	# USAGE: Rotate drag <x> <y>
1245	# USAGE: Rotate release <x> <y>
1246	#
1247	# Called automatically when the user clicks/drags/releases in the
1248	# plot area. Moves the plot according to the user's actions.
1249	# ----------------------------------------------------------------------
1250	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1251	switch -- $option {
1252	"click" {
1253	$itk_component(view) configure -cursor fleur
1254	set _click(x) $x
1255	set _click(y) $y
1256	}
1257	"drag" {
1258	if {[array size _click] == 0} {
1259	Rotate click $x $y
1260	} else {
1261	set w [winfo width $itk_component(view)]
1262	set h [winfo height $itk_component(view)]
1263	if {$w <= 0 \|\| $h <= 0} {
1264	return
1265	}
1266
1267	if {[catch {
1268	# this fails sometimes for no apparent reason
1269	set dx [expr {double($x-$_click(x))/$w}]
1270	set dy [expr {double($y-$_click(y))/$h}]
1271	}]} {
1272	return
1273	}
1274	if { $dx == 0 && $dy == 0 } {
1275	return
1276	}
1277	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1278	EventuallyRotate $q
1279	set _click(x) $x
1280	set _click(y) $y
1281	}
1282	}
1283	"release" {
1284	Rotate drag $x $y
1285	$itk_component(view) configure -cursor ""
1286	catch {unset _click}
1287	}
1288	default {
1289	error "bad option \"$option\": should be click, drag, release"
1290	}
1291	}
1292	}
1293
1294	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1295	foreach tag [CurrentDatasets -visible] {
1296	SendCmd "dataset getscalar pixel $x $y $tag"
1297	}
1298	}
1299
1300	# ----------------------------------------------------------------------
1301	# USAGE: $this Pan click x y
1302	# $this Pan drag x y
1303	# $this Pan release x y
1304	#
1305	# Called automatically when the user clicks on one of the zoom
1306	# controls for this widget. Changes the zoom for the current view.
1307	# ----------------------------------------------------------------------
1308	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1309	switch -- $option {
1310	"set" {
1311	set w [winfo width $itk_component(view)]
1312	set h [winfo height $itk_component(view)]
1313	set x [expr $x / double($w)]
1314	set y [expr $y / double($h)]
1315	set _view(-xpan) [expr $_view(-xpan) + $x]
1316	set _view(-ypan) [expr $_view(-ypan) + $y]
1317	PanCamera
1318	return
1319	}
1320	"click" {
1321	set _click(x) $x
1322	set _click(y) $y
1323	$itk_component(view) configure -cursor hand1
1324	}
1325	"drag" {
1326	if { ![info exists _click(x)] } {
1327	set _click(x) $x
1328	}
1329	if { ![info exists _click(y)] } {
1330	set _click(y) $y
1331	}
1332	set w [winfo width $itk_component(view)]
1333	set h [winfo height $itk_component(view)]
1334	set dx [expr ($_click(x) - $x)/double($w)]
1335	set dy [expr ($_click(y) - $y)/double($h)]
1336	set _click(x) $x
1337	set _click(y) $y
1338	set _view(-xpan) [expr $_view(-xpan) - $dx]
1339	set _view(-ypan) [expr $_view(-ypan) - $dy]
1340	PanCamera
1341	}
1342	"release" {
1343	Pan drag $x $y
1344	$itk_component(view) configure -cursor ""
1345	}
1346	default {
1347	error "unknown option \"$option\": should set, click, drag, or release"
1348	}
1349	}
1350	}
1351
1352	# ----------------------------------------------------------------------
1353	# USAGE: InitSettings <what> ?<value>?
1354	#
1355	# Used internally to update rendering settings whenever parameters
1356	# change in the popup settings panel. Sends the new settings off
1357	# to the back end.
1358	# ----------------------------------------------------------------------
1359	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1360	foreach spec $args {
1361	if { [info exists _settings($_first-$spec)] } {
1362	# Reset global setting with dataobj specific setting
1363	set _settings($spec) $_settings($_first-$spec)
1364	}
1365	AdjustSetting $spec
1366	}
1367	}
1368
1369	#
1370	# AdjustSetting --
1371	#
1372	# Changes/updates a specific setting in the widget. There are
1373	# usually user-setable option. Commands are sent to the render
1374	# server.
1375	#
1376	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1377	if { ![isconnected] } {
1378	return
1379	}
1380	switch -- $what {
1381	"-axesvisible" {
1382	set bool $_settings($what)
1383	SendCmd "axis visible all $bool"
1384	}
1385	"-axislabels" {
1386	set bool $_settings($what)
1387	SendCmd "axis labels all $bool"
1388	}
1389	"-axisminorticks" {
1390	set bool $_settings($what)
1391	SendCmd "axis minticks all $bool"
1392	}
1393	"-axismode" {
1394	set mode [$itk_component(axisMode) value]
1395	set mode [$itk_component(axisMode) translate $mode]
1396	set _settings($what) $mode
1397	SendCmd "axis flymode $mode"
1398	}
1399	"-background" {
1400	set bgcolor [$itk_component(background) value]
1401	array set fgcolors {
1402	"black" "white"
1403	"white" "black"
1404	"grey" "black"
1405	}
1406	configure -plotbackground $bgcolor \
1407	-plotforeground $fgcolors($bgcolor)
1408	$itk_component(view) delete "legend"
1409	DrawLegend
1410	}
1411	"-cutplaneedges" {
1412	set bool $_settings($what)
1413	SendCmd "cutplane edges $bool"
1414	}
1415	"-cutplanelighting" {
1416	set bool $_settings($what)
1417	SendCmd "cutplane lighting $bool"
1418	}
1419	"-cutplaneopacity" {
1420	set _settings($what) [expr $_widget($what) * 0.01]
1421	SendCmd "cutplane opacity $_settings($what)"
1422	}
1423	"-cutplanepreinterp" {
1424	set bool $_settings($what)
1425	SendCmd "cutplane preinterp $bool"
1426	}
1427	"-cutplanesvisible" {
1428	set bool $_settings($what)
1429	SendCmd "cutplane visible 0"
1430	if { $bool } {
1431	foreach tag [CurrentDatasets -visible] {
1432	SendCmd "cutplane visible $bool $tag"
1433	}
1434	}
1435	if { $bool } {
1436	Rappture::Tooltip::for $itk_component(cutplane) \
1437	"Hide the cutplanes"
1438	} else {
1439	Rappture::Tooltip::for $itk_component(cutplane) \
1440	"Show the cutplanes"
1441	}
1442	}
1443	"-cutplanewireframe" {
1444	set bool $_settings($what)
1445	SendCmd "cutplane wireframe $bool"
1446	}
1447	"-colormap" {
1448	set _changed($what) 1
1449	StartBufferingCommands
1450	set color [$itk_component(colormap) value]
1451	set _settings($what) $color
1452	if { $color == "none" } {
1453	if { $_settings(-colormapvisible) } {
1454	SendCmd "contour3d colormode constant {}"
1455	set _settings(-colormapvisible) 0
1456	}
1457	} else {
1458	if { !$_settings(-colormapvisible) } {
1459	SendCmd "contour3d colormode $_colorMode $_curFldName"
1460	set _settings(-colormapvisible) 1
1461	}
1462	SetCurrentColormap $color
1463	}
1464	StopBufferingCommands
1465	EventuallyRequestLegend
1466	}
1467	"-field" {
1468	set label [$itk_component(field) value]
1469	set fname [$itk_component(field) translate $label]
1470	set _settings($what) $fname
1471	if { [info exists _fields($fname)] } {
1472	foreach { label units components } $_fields($fname) break
1473	if { $components > 1 } {
1474	set _colorMode vmag
1475	} else {
1476	set _colorMode scalar
1477	}
1478	set _curFldName $fname
1479	set _curFldLabel $label
1480	} else {
1481	puts stderr "unknown field \"$fname\""
1482	return
1483	}
1484	SendCmd "dataset scalar $_curFldName"
1485	if { ![info exists _limits($_curFldName)] } {
1486	SendCmd "dataset maprange all"
1487	} else {
1488	foreach { vmin vmax } $_limits($_curFldName) break
1489	if { $_settings(-customrange) } {
1490	if { [$itk_component(min) value] > $vmin } {
1491	set vmin [$itk_component(min) value]
1492	}
1493	if { [$itk_component(max) value] < $vmax } {
1494	set vmax [$itk_component(max) value]
1495	}
1496	}
1497	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1498	}
1499	SendCmd "cutplane colormode $_colorMode $_curFldName"
1500	SendCmd "contour3d colormode $_colorMode $_curFldName"
1501	SendCmd "camera reset"
1502	GenerateContourList
1503	DrawLegend
1504	}
1505	"-isolinecolor" {
1506	set color [$itk_component(isolineColor) value]
1507	set _settings($what) $color
1508	DrawLegend
1509	}
1510	"-isosurfaceedges" {
1511	set bool $_settings($what)
1512	SendCmd "contour3d edges $bool"
1513	}
1514	"-isosurfacelighting" {
1515	set bool $_settings($what)
1516	SendCmd "contour3d lighting $bool"
1517	}
1518	"-isosurfaceopacity" {
1519	set _settings($what) [expr $_widget($what) * 0.01]
1520	SendCmd "contour3d opacity $_settings($what)"
1521	}
1522	"-isosurfacevisible" {
1523	set bool $_settings($what)
1524	SendCmd "contour3d visible 0"
1525	if { $bool } {
1526	foreach tag [CurrentDatasets -visible] {
1527	SendCmd "contour3d visible $bool $tag"
1528	}
1529	}
1530	if { $bool } {
1531	Rappture::Tooltip::for $itk_component(contour) \
1532	"Hide the isosurface"
1533	} else {
1534	Rappture::Tooltip::for $itk_component(contour) \
1535	"Show the isosurface"
1536	}
1537	}
1538	"-isosurfacewireframe" {
1539	set bool $_settings($what)
1540	SendCmd "contour3d wireframe $bool"
1541	}
1542	"-legendvisible" {
1543	if { !$_settings($what) } {
1544	$itk_component(view) delete legend
1545	}
1546	DrawLegend
1547	}
1548	"-numcontours" {
1549	set _settings($what) [$itk_component(numcontours) value]
1550	if { $_contourList(numLevels) != $_settings($what) } {
1551	set _contourList(numLevels) $_settings($what)
1552	EventuallyChangeContourLevels
1553	}
1554	}
1555	"-ortho" {
1556	set bool $_view($what)
1557	if { $bool } {
1558	SendCmd "camera mode ortho"
1559	} else {
1560	SendCmd "camera mode persp"
1561	}
1562	}
1563	"-outline" {
1564	set bool $_settings($what)
1565	SendCmd "outline visible 0"
1566	if { $bool } {
1567	foreach tag [CurrentDatasets -visible] {
1568	SendCmd "outline visible $bool $tag"
1569	}
1570	}
1571	}
1572	"-range" {
1573	foreach { vmin vmax } $_limits($_curFldName) break
1574	if { $_settings(-customrange) } {
1575	$itk_component(l_min) configure -state normal
1576	$itk_component(min) configure -state normal
1577	$itk_component(l_max) configure -state normal
1578	$itk_component(max) configure -state normal
1579	if { [$itk_component(min) value] > $vmin } {
1580	set vmin [$itk_component(min) value]
1581	}
1582	if { [$itk_component(max) value] < $vmax } {
1583	set vmax [$itk_component(max) value]
1584	}
1585	} else {
1586	$itk_component(l_min) configure -state disabled
1587	$itk_component(min) configure -state disabled
1588	$itk_component(l_max) configure -state disabled
1589	$itk_component(max) configure -state disabled
1590	}
1591	GenerateContourList
1592	SendCmd [list contour3d contourlist $_contourList(values)]
1593	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1594	DrawLegend
1595	}
1596	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1597	set axis [string tolower [string range $what 1 1]]
1598	set bool $_settings($what)
1599	if { $bool } {
1600	$itk_component(${axis}position) configure -state normal \
1601	-troughcolor white
1602	} else {
1603	$itk_component(${axis}position) configure -state disabled \
1604	-troughcolor grey82
1605	}
1606	SendCmd "cutplane axis $axis $bool"
1607	}
1608	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1609	set axis [string tolower [string range $what 1 1]]
1610	set pos [expr $_settings($what) * 0.01]
1611	SendCmd "cutplane slice ${axis} ${pos}"
1612	set _cutplanePending 0
1613	}
1614	"-xgrid" - "-ygrid" - "-zgrid" {
1615	set axis [string tolower [string range $what 1 1]]
1616	set bool $_settings($what)
1617	SendCmd "axis grid $axis $bool"
1618	}
1619	default {
1620	error "don't know how to fix $what"
1621	}
1622	}
1623	}
1624
1625	#
1626	# RequestLegend --
1627	#
1628	# Request a new legend from the server. The size of the legend
1629	# is determined from the height of the canvas.
1630	#
1631	# This should be called when
1632	# 1. A new current colormap is set.
1633	# 2. Window is resized.
1634	# 3. The limits of the data have changed. (Just need a redraw).
1635	# 4. Number of isolines have changed. (Just need a redraw).
1636	# 5. Legend becomes visible (Just need a redraw).
1637	#
1638	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1639	set _legendPending 0
1640	if { ![info exists _fields($_curFldName)] } {
1641	return
1642	}
1643	set fname $_curFldName
1644	set font "Arial 8"
1645	set lineht [font metrics $font -linespace]
1646	set w 12
1647	set h [expr {$_height - 2 * ($lineht + 2)}]
1648	if { $h < 1 } {
1649	return
1650	}
1651	if { [string match "component*" $fname] } {
1652	set title ""
1653	} else {
1654	if { [info exists _fields($fname)] } {
1655	foreach { title units } $_fields($fname) break
1656	if { $units != "" } {
1657	set title [format "%s (%s)" $title $units]
1658	}
1659	} else {
1660	set title $fname
1661	}
1662	}
1663	# If there's a title too, subtract one more line
1664	if { $title != "" } {
1665	incr h -$lineht
1666	}
1667	# Set the legend on the first isosurface dataset.
1668	if { $_currentColormap != "" } {
1669	set cmap $_currentColormap
1670	SendCmdNoWait "legend $cmap scalar $_curFldName {} $w $h 0"
1671	}
1672	}
1673
1674	# ----------------------------------------------------------------------
1675	# CONFIGURATION OPTION: -plotbackground
1676	# ----------------------------------------------------------------------
1677	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1678	if { [isconnected] } {
1679	set rgb [Color2RGB $itk_option(-plotbackground)]
1680	SendCmd "screen bgcolor $rgb"
1681	}
1682	}
1683
1684	# ----------------------------------------------------------------------
1685	# CONFIGURATION OPTION: -plotforeground
1686	# ----------------------------------------------------------------------
1687	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1688	if { [isconnected] } {
1689	set rgb [Color2RGB $itk_option(-plotforeground)]
1690	SendCmd "axis color all $rgb"
1691	SendCmd "outline color $rgb"
1692	SendCmd "cutplane color $rgb"
1693	}
1694	}
1695
1696	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1697
1698	set fg [option get $itk_component(hull) font Font]
1699	#set bfg [option get $itk_component(hull) boldFont Font]
1700
1701	set inner [$itk_component(main) insert end \
1702	-title "Isosurface Settings" \
1703	-icon [Rappture::icon volume-on]]
1704	$inner configure -borderwidth 4
1705
1706	checkbutton $inner.contour \
1707	-text "Isosurfaces" \
1708	-variable [itcl::scope _settings(-isosurfacevisible)] \
1709	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1710	-font "Arial 9"
1711
1712	checkbutton $inner.wireframe \
1713	-text "Wireframe" \
1714	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1715	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1716	-font "Arial 9"
1717
1718	checkbutton $inner.lighting \
1719	-text "Enable Lighting" \
1720	-variable [itcl::scope _settings(-isosurfacelighting)] \
1721	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1722	-font "Arial 9"
1723
1724	checkbutton $inner.edges \
1725	-text "Edges" \
1726	-variable [itcl::scope _settings(-isosurfaceedges)] \
1727	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1728	-font "Arial 9"
1729
1730	checkbutton $inner.outline \
1731	-text "Outline" \
1732	-variable [itcl::scope _settings(-outline)] \
1733	-command [itcl::code $this AdjustSetting -outline] \
1734	-font "Arial 9"
1735
1736	checkbutton $inner.legend \
1737	-text "Legend" \
1738	-variable [itcl::scope _settings(-legendvisible)] \
1739	-command [itcl::code $this AdjustSetting -legendvisible] \
1740	-font "Arial 9"
1741
1742	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1743	itk_component add isolineColor {
1744	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1745	}
1746	$inner.linecolor choices insert end \
1747	"black" "black" \
1748	"blue" "blue" \
1749	"cyan" "cyan" \
1750	"green" "green" \
1751	"grey" "grey" \
1752	"magenta" "magenta" \
1753	"orange" "orange" \
1754	"red" "red" \
1755	"white" "white" \
1756	"none" "none"
1757
1758	$itk_component(isolineColor) value "white"
1759	bind $inner.linecolor <<Value>> \
1760	[itcl::code $this AdjustSetting -isolinecolor]
1761
1762	label $inner.background_l -text "Background" -font "Arial 9"
1763	itk_component add background {
1764	Rappture::Combobox $inner.background -width 10 -editable 0
1765	}
1766	$inner.background choices insert end \
1767	"black" "black" \
1768	"white" "white" \
1769	"grey" "grey"
1770
1771	$itk_component(background) value $_settings(-background)
1772	bind $inner.background <<Value>> \
1773	[itcl::code $this AdjustSetting -background]
1774
1775	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1776	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1777	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1778	-width 10 \
1779	-showvalue off \
1780	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1781	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
1782
1783	itk_component add field_l {
1784	label $inner.field_l -text "Field" -font "Arial 9"
1785	} {
1786	ignore -font
1787	}
1788	itk_component add field {
1789	Rappture::Combobox $inner.field -width 10 -editable 0
1790	}
1791	bind $inner.field <<Value>> \
1792	[itcl::code $this AdjustSetting -field]
1793
1794	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1795	itk_component add colormap {
1796	Rappture::Combobox $inner.colormap -width 10 -editable 0
1797	}
1798	$inner.colormap choices insert end [GetColormapList]
1799
1800	$itk_component(colormap) value "BCGYR"
1801	bind $inner.colormap <<Value>> \
1802	[itcl::code $this AdjustSetting -colormap]
1803
1804	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1805	itk_component add numcontours {
1806	Rappture::Spinint $inner.numcontours \
1807	-min 0 -max 50 -font "arial 9"
1808	}
1809	$itk_component(numcontours) value $_settings(-numcontours)
1810	bind $itk_component(numcontours) <<Value>> \
1811	[itcl::code $this AdjustSetting -numcontours]
1812
1813
1814	# add widgets for setting a custom range on the legend
1815
1816	itk_component add crange {
1817	checkbutton $inner.crange \
1818	-text "Use Custom Range:" \
1819	-variable [itcl::scope _settings(-customrange)] \
1820	-command [itcl::code $this AdjustSetting -range] \
1821	-font "Arial 9"
1822	}
1823
1824	itk_component add l_min {
1825	label $inner.l_min -text "Min" -font "Arial 9"
1826	}
1827	itk_component add min {
1828	Rappture::Gauge $inner.min \
1829	-validatecommand [itcl::code $this LegendRangeValidate "" vmin]
1830	}
1831	bind $itk_component(min) <<Value>> \
1832	[itcl::code $this AdjustSetting -range]
1833
1834	itk_component add l_max {
1835	label $inner.l_max -text "Max" -font "Arial 9"
1836	}
1837	itk_component add max {
1838	Rappture::Gauge $inner.max \
1839	-validatecommand [itcl::code $this LegendRangeValidate "" vmax]
1840	}
1841	bind $itk_component(max) <<Value>> \
1842	[itcl::code $this AdjustSetting -range]
1843
1844	$itk_component(min) configure -state disabled
1845	$itk_component(max) configure -state disabled
1846
1847
1848	blt::table $inner \
1849	0,0 $inner.field_l -anchor w -pady 2 \
1850	0,1 $inner.field -anchor w -pady 2 -fill x \
1851	1,0 $inner.colormap_l -anchor w -pady 2 \
1852	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1853	2,0 $inner.linecolor_l -anchor w -pady 2 \
1854	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1855	3,0 $inner.background_l -anchor w -pady 2 \
1856	3,1 $inner.background -anchor w -pady 2 -fill x \
1857	4,0 $inner.numcontours_l -anchor w -pady 2 \
1858	4,1 $inner.numcontours -anchor w -pady 2 \
1859	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1860	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1861	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1862	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1863	9,0 $inner.legend -anchor w -pady 2 \
1864	10,0 $inner.opacity_l -anchor w -pady 2 \
1865	10,1 $inner.opacity -fill x -pady 2 -fill x \
1866	11,0 $inner.crange -anchor w -pady 2 -cspan 2 \
1867	12,0 $inner.l_min -anchor w -pady 2 \
1868	12,1 $inner.min -anchor w -pady 2 -fill x \
1869	13,0 $inner.l_max -anchor w -pady 2 \
1870	13,1 $inner.max -anchor w -pady 2 -fill x \
1871
1872	blt::table configure $inner r* c* -resize none
1873	blt::table configure $inner r14 c1 -resize expand
1874	}
1875
1876	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1877
1878	set fg [option get $itk_component(hull) font Font]
1879	#set bfg [option get $itk_component(hull) boldFont Font]
1880
1881	set inner [$itk_component(main) insert end \
1882	-title "Axis Settings" \
1883	-icon [Rappture::icon axis2]]
1884	$inner configure -borderwidth 4
1885
1886	checkbutton $inner.visible \
1887	-text "Axes" \
1888	-variable [itcl::scope _settings(-axesvisible)] \
1889	-command [itcl::code $this AdjustSetting -axesvisible] \
1890	-font "Arial 9"
1891
1892	checkbutton $inner.labels \
1893	-text "Axis Labels" \
1894	-variable [itcl::scope _settings(-axislabels)] \
1895	-command [itcl::code $this AdjustSetting -axislabels] \
1896	-font "Arial 9"
1897	label $inner.grid_l -text "Grid" -font "Arial 9"
1898	checkbutton $inner.xgrid \
1899	-text "X" \
1900	-variable [itcl::scope _settings(-xgrid)] \
1901	-command [itcl::code $this AdjustSetting -xgrid] \
1902	-font "Arial 9"
1903	checkbutton $inner.ygrid \
1904	-text "Y" \
1905	-variable [itcl::scope _settings(-ygrid)] \
1906	-command [itcl::code $this AdjustSetting -ygrid] \
1907	-font "Arial 9"
1908	checkbutton $inner.zgrid \
1909	-text "Z" \
1910	-variable [itcl::scope _settings(-zgrid)] \
1911	-command [itcl::code $this AdjustSetting -zgrid] \
1912	-font "Arial 9"
1913	checkbutton $inner.minorticks \
1914	-text "Minor Ticks" \
1915	-variable [itcl::scope _settings(-axisminorticks)] \
1916	-command [itcl::code $this AdjustSetting -axisminorticks] \
1917	-font "Arial 9"
1918
1919	label $inner.mode_l -text "Mode" -font "Arial 9"
1920
1921	itk_component add axisMode {
1922	Rappture::Combobox $inner.mode -width 10 -editable 0
1923	}
1924	$inner.mode choices insert end \
1925	"static_triad" "static" \
1926	"closest_triad" "closest" \
1927	"furthest_triad" "farthest" \
1928	"outer_edges" "outer"
1929	$itk_component(axisMode) value $_settings(-axismode)
1930	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1931
1932	blt::table $inner \
1933	0,0 $inner.visible -anchor w -cspan 4 \
1934	1,0 $inner.labels -anchor w -cspan 4 \
1935	2,0 $inner.minorticks -anchor w -cspan 4 \
1936	4,0 $inner.grid_l -anchor w \
1937	4,1 $inner.xgrid -anchor w \
1938	4,2 $inner.ygrid -anchor w \
1939	4,3 $inner.zgrid -anchor w \
1940	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1941	5,1 $inner.mode -fill x -cspan 3
1942
1943	blt::table configure $inner r* c* -resize none
1944	blt::table configure $inner r7 c6 -resize expand
1945	blt::table configure $inner r3 -height 0.125i
1946	}
1947
1948
1949	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1950	set inner [$itk_component(main) insert end \
1951	-title "Camera Settings" \
1952	-icon [Rappture::icon camera]]
1953	$inner configure -borderwidth 4
1954
1955	label $inner.view_l -text "view" -font "Arial 9"
1956	set f [frame $inner.view]
1957	foreach side { front back left right top bottom } {
1958	button $f.$side -image [Rappture::icon view$side] \
1959	-command [itcl::code $this SetOrientation $side]
1960	Rappture::Tooltip::for $f.$side "Change the view to $side"
1961	pack $f.$side -side left
1962	}
1963
1964	blt::table $inner \
1965	0,0 $inner.view_l -anchor e -pady 2 \
1966	0,1 $inner.view -anchor w -pady 2
1967	blt::table configure $inner r0 -resize none
1968
1969	set labels { qx qy qz qw xpan ypan zoom }
1970	set row 1
1971	foreach tag $labels {
1972	label $inner.${tag}label -text $tag -font "Arial 9"
1973	entry $inner.${tag} -font "Arial 9" -bg white \
1974	-textvariable [itcl::scope _view(-$tag)]
1975	bind $inner.${tag} <Return> \
1976	[itcl::code $this camera set -${tag}]
1977	bind $inner.${tag} <KP_Enter> \
1978	[itcl::code $this camera set -${tag}]
1979	blt::table $inner \
1980	$row,0 $inner.${tag}label -anchor e -pady 2 \
1981	$row,1 $inner.${tag} -anchor w -pady 2
1982	blt::table configure $inner r$row -resize none
1983	incr row
1984	}
1985	checkbutton $inner.ortho \
1986	-text "Orthographic Projection" \
1987	-variable [itcl::scope _view(-ortho)] \
1988	-command [itcl::code $this AdjustSetting -ortho] \
1989	-font "Arial 9"
1990	blt::table $inner \
1991	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1992	blt::table configure $inner r$row -resize none
1993	incr row
1994
1995	blt::table configure $inner c* -resize none
1996	blt::table configure $inner c2 -resize expand
1997	blt::table configure $inner r$row -resize expand
1998	}
1999
2000	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
2001
2002	set fg [option get $itk_component(hull) font Font]
2003
2004	set inner [$itk_component(main) insert end \
2005	-title "Cutplane Settings" \
2006	-icon [Rappture::icon cutbutton]]
2007
2008	$inner configure -borderwidth 4
2009
2010	checkbutton $inner.visible \
2011	-text "Cutplanes" \
2012	-variable [itcl::scope _settings(-cutplanesvisible)] \
2013	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2014	-font "Arial 9"
2015
2016	checkbutton $inner.wireframe \
2017	-text "Wireframe" \
2018	-variable [itcl::scope _settings(-cutplanewireframe)] \
2019	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
2020	-font "Arial 9"
2021
2022	checkbutton $inner.lighting \
2023	-text "Enable Lighting" \
2024	-variable [itcl::scope _settings(-cutplanelighting)] \
2025	-command [itcl::code $this AdjustSetting -cutplanelighting] \
2026	-font "Arial 9"
2027
2028	checkbutton $inner.edges \
2029	-text "Edges" \
2030	-variable [itcl::scope _settings(-cutplaneedges)] \
2031	-command [itcl::code $this AdjustSetting -cutplaneedges] \
2032	-font "Arial 9"
2033
2034	checkbutton $inner.preinterp \
2035	-text "Interpolate Scalars" \
2036	-variable [itcl::scope _settings(-cutplanepreinterp)] \
2037	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
2038	-font "Arial 9"
2039
2040	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2041	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2042	-variable [itcl::scope _widget(-cutplaneopacity)] \
2043	-width 10 \
2044	-showvalue off \
2045	-command [itcl::code $this AdjustSetting -cutplaneopacity]
2046	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
2047
2048	# X-value slicer...
2049	itk_component add xbutton {
2050	Rappture::PushButton $inner.xbutton \
2051	-onimage [Rappture::icon x-cutplane-red] \
2052	-offimage [Rappture::icon x-cutplane-red] \
2053	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2054	-variable [itcl::scope _settings(-xcutplanevisible)] \
2055	}
2056	Rappture::Tooltip::for $itk_component(xbutton) \
2057	"Toggle the X-axis cutplane on/off"
2058	$itk_component(xbutton) select
2059	itk_component add xposition {
2060	::scale $inner.xval -from 100 -to 0 \
2061	-width 10 -orient vertical -showvalue 1 \
2062	-borderwidth 1 -highlightthickness 0 \
2063	-command [itcl::code $this EventuallySetCutplane x] \
2064	-variable [itcl::scope _settings(-xcutplaneposition)] \
2065	-foreground red2 -font "Arial 9 bold"
2066	} {
2067	usual
2068	ignore -borderwidth -highlightthickness -foreground -font -background
2069	}
2070	# Set the default cutplane value before disabling the scale.
2071	$itk_component(xposition) set 50
2072	$itk_component(xposition) configure -state disabled
2073	Rappture::Tooltip::for $itk_component(xposition) \
2074	"@[itcl::code $this Slice tooltip x]"
2075
2076	# Y-value slicer...
2077	itk_component add ybutton {
2078	Rappture::PushButton $inner.ybutton \
2079	-onimage [Rappture::icon y-cutplane-green] \
2080	-offimage [Rappture::icon y-cutplane-green] \
2081	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2082	-variable [itcl::scope _settings(-ycutplanevisible)] \
2083	}
2084	Rappture::Tooltip::for $itk_component(ybutton) \
2085	"Toggle the Y-axis cutplane on/off"
2086	$itk_component(ybutton) select
2087
2088	itk_component add yposition {
2089	::scale $inner.yval -from 100 -to 0 \
2090	-width 10 -orient vertical -showvalue 1 \
2091	-borderwidth 1 -highlightthickness 0 \
2092	-command [itcl::code $this EventuallySetCutplane y] \
2093	-variable [itcl::scope _settings(-ycutplaneposition)] \
2094	-foreground green3 -font "Arial 9 bold"
2095	} {
2096	usual
2097	ignore -borderwidth -highlightthickness -foreground -font
2098	}
2099	Rappture::Tooltip::for $itk_component(yposition) \
2100	"@[itcl::code $this Slice tooltip y]"
2101	# Set the default cutplane value before disabling the scale.
2102	$itk_component(yposition) set 50
2103	$itk_component(yposition) configure -state disabled
2104
2105	# Z-value slicer...
2106	itk_component add zbutton {
2107	Rappture::PushButton $inner.zbutton \
2108	-onimage [Rappture::icon z-cutplane-blue] \
2109	-offimage [Rappture::icon z-cutplane-blue] \
2110	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2111	-variable [itcl::scope _settings(-zcutplanevisible)] \
2112	} {
2113	usual
2114	ignore -foreground
2115	}
2116	Rappture::Tooltip::for $itk_component(zbutton) \
2117	"Toggle the Z-axis cutplane on/off"
2118	$itk_component(zbutton) select
2119
2120	itk_component add zposition {
2121	::scale $inner.zval -from 100 -to 0 \
2122	-width 10 -orient vertical -showvalue 1 \
2123	-borderwidth 1 -highlightthickness 0 \
2124	-command [itcl::code $this EventuallySetCutplane z] \
2125	-variable [itcl::scope _settings(-zcutplaneposition)] \
2126	-foreground blue3 -font "Arial 9 bold"
2127	} {
2128	usual
2129	ignore -borderwidth -highlightthickness -foreground -font
2130	}
2131	$itk_component(zposition) set 50
2132	$itk_component(zposition) configure -state disabled
2133	Rappture::Tooltip::for $itk_component(zposition) \
2134	"@[itcl::code $this Slice tooltip z]"
2135
2136	blt::table $inner \
2137	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2138	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2139	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2140	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2141	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2142	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2143	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2144	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2145	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2146	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2147	6,1 $inner.xval -fill y -rspan 4 \
2148	6,2 $inner.yval -fill y -rspan 4 \
2149	6,3 $inner.zval -fill y -rspan 4 \
2150
2151
2152	blt::table configure $inner r* c* -resize none
2153	blt::table configure $inner r9 c4 -resize expand
2154	}
2155
2156	#
2157	# camera --
2158	#
2159	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2160	switch -- $option {
2161	"show" {
2162	puts [array get _view]
2163	}
2164	"set" {
2165	set what [lindex $args 0]
2166	set x $_view($what)
2167	set code [catch { string is double $x } result]
2168	if { $code != 0 \|\| !$result } {
2169	return
2170	}
2171	switch -- $what {
2172	"-ortho" {
2173	if {$_view($what)} {
2174	SendCmd "camera mode ortho"
2175	} else {
2176	SendCmd "camera mode persp"
2177	}
2178	}
2179	"-xpan" - "-ypan" {
2180	PanCamera
2181	}
2182	"-qx" - "-qy" - "-qz" - "-qw" {
2183	set q [ViewToQuaternion]
2184	$_arcball quaternion $q
2185	EventuallyRotate $q
2186	}
2187	"-zoom" {
2188	SendCmd "camera zoom $_view($what)"
2189	}
2190	}
2191	}
2192	}
2193	}
2194
2195	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2196	set bytes ""
2197	foreach dataobj [get] {
2198	foreach cname [$dataobj components] {
2199	set tag $dataobj-$cname
2200	set contents [$dataobj vtkdata $cname]
2201	append bytes "$contents\n"
2202	}
2203	}
2204	return [list .vtk $bytes]
2205	}
2206
2207	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2208	if { [image width $_image(download)] > 0 &&
2209	[image height $_image(download)] > 0 } {
2210	set bytes [$_image(download) data -format "jpeg -quality 100"]
2211	set bytes [Rappture::encoding::decode -as b64 $bytes]
2212	return [list .jpg $bytes]
2213	}
2214	return ""
2215	}
2216
2217	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2218	Rappture::Balloon $popup \
2219	-title "[Rappture::filexfer::label downloadWord] as..."
2220	set inner [$popup component inner]
2221	label $inner.summary -text "" -anchor w
2222	radiobutton $inner.vtk_button -text "VTK data file" \
2223	-variable [itcl::scope _downloadPopup(format)] \
2224	-font "Arial 9 " \
2225	-value vtk
2226	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2227	radiobutton $inner.image_button -text "Image File" \
2228	-variable [itcl::scope _downloadPopup(format)] \
2229	-font "Arial 9 " \
2230	-value image
2231	Rappture::Tooltip::for $inner.image_button \
2232	"Save as digital image."
2233
2234	button $inner.ok -text "Save" \
2235	-highlightthickness 0 -pady 2 -padx 3 \
2236	-command $command \
2237	-compound left \
2238	-image [Rappture::icon download]
2239
2240	button $inner.cancel -text "Cancel" \
2241	-highlightthickness 0 -pady 2 -padx 3 \
2242	-command [list $popup deactivate] \
2243	-compound left \
2244	-image [Rappture::icon cancel]
2245
2246	blt::table $inner \
2247	0,0 $inner.summary -cspan 2 \
2248	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2249	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2250	4,1 $inner.cancel -width .9i -fill y \
2251	4,0 $inner.ok -padx 2 -width .9i -fill y
2252	blt::table configure $inner r3 -height 4
2253	blt::table configure $inner r4 -pady 4
2254	raise $inner.image_button
2255	$inner.vtk_button invoke
2256	return $inner
2257	}
2258
2259	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2260	# Parse style string.
2261	set tag $dataobj-$comp
2262	array set style {
2263	-color BCGYR
2264	-cutplanesvisible 0
2265	-edgecolor black
2266	-edges 0
2267	-isosurfacevisible 1
2268	-levels 10
2269	-lighting 1
2270	-linewidth 1.0
2271	-opacity 0.6
2272	-outline 0
2273	-wireframe 0
2274	-xcutplaneposition 50
2275	-xcutplanevisible 1
2276	-ycutplaneposition 50
2277	-ycutplanevisible 1
2278	-zcutplaneposition 50
2279	-zcutplanevisible 1
2280	}
2281	array set style [$dataobj style $comp]
2282	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2283	set style(-opacity) 1.0
2284	}
2285
2286	# This is too complicated. We want to set the colormap, number of
2287	# isolines and opacity for the dataset. They can be the default values,
2288	# the style hints loaded with the dataset, or set by user controls. As
2289	# datasets get loaded, they first use the defaults that are overidden
2290	# by the style hints. If the user changes the global controls, then that
2291	# overrides everything else. I don't know what it means when global
2292	# controls are specified as style hints by each dataset. It complicates
2293	# the code to handle aberrant cases.
2294
2295	if { $_changed(-isosurfaceopacity) } {
2296	set style(-opacity) $_settings(-isosurfaceopacity)
2297	}
2298	if { $_changed(-numcontours) } {
2299	set style(-levels) $_settings(-numcontours)
2300	}
2301	if { $_changed(-colormap) } {
2302	set style(-color) $_settings(-colormap)
2303	}
2304	if { $_currentColormap == "" } {
2305	SetCurrentColormap $style(-color)
2306	$itk_component(colormap) value $style(-color)
2307	}
2308	if { $_contourList(numLevels) != $style(-levels) } {
2309	if { [llength $style(-levels)] > 1 } {
2310	set _contourList(reqValues) [lsort -real $style(-levels)]
2311	} else {
2312	set _settings(-numcontours) $style(-levels)
2313	$itk_component(numcontours) value $style(-levels)
2314	set _contourList(numLevels) $style(-levels)
2315	}
2316	EventuallyChangeContourLevels
2317	}
2318	set _settings(-isosurfacevisible) $style(-isosurfacevisible)
2319	set _settings(-cutplanesvisible) $style(-cutplanesvisible)
2320	set _settings(-xcutplanevisible) $style(-xcutplanevisible)
2321	set _settings(-ycutplanevisible) $style(-ycutplanevisible)
2322	set _settings(-zcutplanevisible) $style(-zcutplanevisible)
2323	set _settings(-xcutplaneposition) $style(-xcutplaneposition)
2324	set _settings(-ycutplaneposition) $style(-ycutplaneposition)
2325	set _settings(-zcutplaneposition) $style(-zcutplaneposition)
2326
2327	SendCmd "cutplane add $tag"
2328	SendCmd "cutplane color [Color2RGB $itk_option(-plotforeground)] $tag"
2329	foreach axis {x y z} {
2330	set pos [expr $_settings(-${axis}cutplaneposition) * 0.01]
2331	set visible $_settings(-${axis}cutplanevisible)
2332	SendCmd "cutplane slice $axis $pos $tag"
2333	SendCmd "cutplane axis $axis $visible $tag"
2334	}
2335	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2336
2337	SendCmd "outline add $tag"
2338	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2339	SendCmd "outline visible $style(-outline) $tag"
2340	set _settings(-outline) $style(-outline)
2341
2342	GenerateContourList
2343	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2344	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2345	SendCmd "contour3d edges $style(-edges) $tag"
2346	set _settings(-isosurfaceedges) $style(-edges)
2347	#SendCmd "contour3d color [Color2RGB $settings(-color)] $tag"
2348	SendCmd "contour3d lighting $style(-lighting) $tag"
2349	set _settings(-isosurfacelighting) $style(-lighting)
2350	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2351	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2352	SendCmd "contour3d opacity $style(-opacity) $tag"
2353	set _settings(-isosurfaceopacity) $style(-opacity)
2354	SetCurrentColormap $style(-color)
2355	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2356	set _settings(-isosurfacewireframe) $style(-wireframe)
2357	}
2358
2359	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2360	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2361	return 0
2362	}
2363	return 1
2364	}
2365
2366	#
2367	# EnterLegend --
2368	#
2369	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2370	SetLegendTip $x $y
2371	}
2372
2373	#
2374	# MotionLegend --
2375	#
2376	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2377	Rappture::Tooltip::tooltip cancel
2378	set c $itk_component(view)
2379	set cw [winfo width $c]
2380	set ch [winfo height $c]
2381	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2382	SetLegendTip $x $y
2383	}
2384	}
2385
2386	#
2387	# LeaveLegend --
2388	#
2389	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2390	Rappture::Tooltip::tooltip cancel
2391	.rappturetooltip configure -icon ""
2392	}
2393
2394	# ----------------------------------------------------------------------
2395	# USAGE: LegendB1Motion press <x> <y>
2396	# USAGE: LegendB1Motion motion <x> <y>
2397	# USAGE: LegendB1Motion release <x> <y>
2398	#
2399	# Manage actions for Button 1 presses that happen over the legend.
2400	# Pressing mouse Button 1 on the legend sends a command to the
2401	# visualization server to show a specific isosurface.
2402	# ----------------------------------------------------------------------
2403	itcl::body Rappture::VtkIsosurfaceViewer::LegendB1Motion { status x y } {
2404
2405	switch -- $status {
2406	"press" {
2407	DisableMouseRotationBindings
2408	LegendProbeSingleContour $x $y
2409	}
2410	"motion" {
2411	DisableMouseRotationBindings
2412	LegendProbeSingleContour $x $y
2413	}
2414	"release" {
2415	AdjustSetting -range
2416	SetupMouseRotationBindings
2417	}
2418	default {
2419	error "bad option \"$option\": should be one of press, motion, release."
2420	}
2421	}
2422	}
2423
2424
2425	# ----------------------------------------------------------------------
2426	# USAGE: LegendPointToValue <x> <y>
2427	#
2428	# Convert an x,y point on the legend to a numeric isosurface value.
2429	# ----------------------------------------------------------------------
2430	itcl::body Rappture::VtkIsosurfaceViewer::LegendPointToValue { x y } {
2431
2432	set fname $_curFldName
2433
2434	set font "Arial 8"
2435	set lineht [font metrics $font -linespace]
2436
2437	set ih [image height $_image(legend)]
2438	set iy [expr $y - ($lineht + 2)]
2439
2440	# Compute the value of the point
2441	if { [info exists _limits($fname)] } {
2442	if { $_settings(-customrange) } {
2443	set vmin [$itk_component(min) value]
2444	set vmax [$itk_component(max) value]
2445	} else {
2446	foreach { vmin vmax } $_limits($fname) break
2447	}
2448	set t [expr 1.0 - (double($iy) / double($ih-1))]
2449	set value [expr $t * ($vmax - $vmin) + $vmin]
2450	} else {
2451	set value 0.0
2452	}
2453	return $value
2454	}
2455
2456
2457	# ----------------------------------------------------------------------
2458	# USAGE: LegendProbeSingleContour <x> <y>
2459	#
2460	# Calculate the isosurface value for the x,y point and send a commands
2461	# to the visualization server to show that isosurface.
2462	# ----------------------------------------------------------------------
2463	itcl::body Rappture::VtkIsosurfaceViewer::LegendProbeSingleContour { x y } {
2464
2465	set value [LegendPointToValue $x $y]
2466	SendCmd [list contour3d contourlist $value]
2467	}
2468
2469
2470	#
2471	# SetLegendTip --
2472	#
2473	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2474	set fname $_curFldName
2475	set c $itk_component(view)
2476	set w [winfo width $c]
2477	set h [winfo height $c]
2478
2479	set font "Arial 8"
2480	set lineht [font metrics $font -linespace]
2481
2482	set ih [image height $_image(legend)]
2483	set iy [expr $y - ($lineht + 2)]
2484
2485	if { [string match "component*" $fname] } {
2486	set title ""
2487	} else {
2488	if { [info exists _fields($fname)] } {
2489	foreach { title units } $_fields($fname) break
2490	if { $units != "" } {
2491	set title [format "%s (%s)" $title $units]
2492	}
2493	} else {
2494	set title $fname
2495	}
2496	}
2497	# If there's a legend title, increase the offset by the line height.
2498	if { $title != "" } {
2499	incr iy -$lineht
2500	}
2501	# Make a swatch of the selected color
2502	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2503	return
2504	}
2505	if { ![info exists _image(swatch)] } {
2506	set _image(swatch) [image create photo -width 24 -height 24]
2507	}
2508	set color [eval format "\#%02x%02x%02x" $pixel]
2509	$_image(swatch) put black -to 0 0 23 23
2510	$_image(swatch) put $color -to 1 1 22 22
2511	.rappturetooltip configure -icon $_image(swatch)
2512
2513	# Compute the value of the point
2514	set value [LegendPointToValue $x $y]
2515
2516	# Setup the location of the tooltip
2517	set tx [expr $x + 15]
2518	set ty [expr $y - 5]
2519
2520	# Setup the text for the tooltip
2521	if { [info exists _isolines($y)] } {
2522	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2523	} else {
2524	Rappture::Tooltip::text $c [format "$title %g" $value]
2525	}
2526
2527	# Show the tooltip
2528	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2529	}
2530
2531	# ----------------------------------------------------------------------
2532	# USAGE: Slice move x\|y\|z <newval>
2533	#
2534	# Called automatically when the user drags the slider to move the
2535	# cut plane that slices 3D data. Gets the current value from the
2536	# slider and moves the cut plane to the appropriate point in the
2537	# data set.
2538	# ----------------------------------------------------------------------
2539	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2540	switch -- $option {
2541	"move" {
2542	set axis [lindex $args 0]
2543	set newval [lindex $args 1]
2544	if {[llength $args] != 2} {
2545	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2546	}
2547	set newpos [expr {0.01*$newval}]
2548	SendCmd "cutplane slice $axis $newpos"
2549	}
2550	"tooltip" {
2551	set axis [lindex $args 0]
2552	set val [$itk_component(${axis}position) get]
2553	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2554	}
2555	default {
2556	error "bad option \"$option\": should be axis, move, or tooltip"
2557	}
2558	}
2559	}
2560
2561	#
2562	# ReceiveLegend --
2563	#
2564	# Invoked automatically whenever the "legend" command comes in from
2565	# the rendering server. Indicates that binary image data with the
2566	# specified <size> will follow.
2567	#
2568	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2569	# puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2570	set _title $title
2571	regsub {$mag$} $title "" _title
2572	if { [IsConnected] } {
2573	set bytes [ReceiveBytes $size]
2574	if { ![info exists _image(legend)] } {
2575	set _image(legend) [image create photo]
2576	}
2577	$_image(legend) configure -data $bytes
2578	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2579	if { [catch {DrawLegend} errs] != 0 } {
2580	global errorInfo
2581	puts stderr "errs=$errs errorInfo=$errorInfo"
2582	}
2583	}
2584	}
2585
2586	#
2587	# DrawLegend --
2588	#
2589	# Draws the legend on the canvas on the right side of the plot area.
2590	#
2591	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2592	set fname $_curFldName
2593	set c $itk_component(view)
2594	set w [winfo width $c]
2595	set h [winfo height $c]
2596	set font "Arial 8"
2597	set lineht [font metrics $font -linespace]
2598
2599	if { [string match "component*" $fname] } {
2600	set title ""
2601	} else {
2602	if { [info exists _fields($fname)] } {
2603	foreach { title units } $_fields($fname) break
2604	if { $units != "" } {
2605	set title [format "%s (%s)" $title $units]
2606	}
2607	} else {
2608	set title $fname
2609	}
2610	}
2611	set x [expr $w - 2]
2612	if { !$_settings(-legendvisible) } {
2613	$c delete legend
2614	return
2615	}
2616	if { [$c find withtag "legend"] == "" } {
2617	set y 2
2618	# If there's a legend title, create a text item for the title.
2619	$c create text $x $y \
2620	-anchor ne \
2621	-fill $itk_option(-plotforeground) -tags "title legend" \
2622	-font $font
2623	if { $title != "" } {
2624	incr y $lineht
2625	}
2626	$c create text $x $y \
2627	-anchor ne \
2628	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2629	-font $font
2630	incr y $lineht
2631	$c create image $x $y \
2632	-anchor ne \
2633	-image $_image(legend) -tags "colormap legend"
2634	$c create rectangle $x $y 1 1 \
2635	-fill "" -outline "" -tags "sensor legend"
2636	$c create text $x [expr {$h-2}] \
2637	-anchor se \
2638	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2639	-font $font
2640	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2641	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2642	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2643	$c bind sensor <ButtonPress-1> [itcl::code $this LegendB1Motion press %x %y]
2644	# $c bind sensor <B1-Motion> [itcl::code $this LegendB1Motion motion %x %y]
2645	$c bind sensor <ButtonRelease-1> [itcl::code $this LegendB1Motion release %x %y]
2646
2647	}
2648	$c delete isoline
2649	set x2 $x
2650	set iw [image width $_image(legend)]
2651	set ih [image height $_image(legend)]
2652	set x1 [expr $x2 - ($iw*12)/10]
2653	set color $_settings(-isolinecolor)
2654	# Draw the isolines on the legend.
2655	array unset _isolines
2656	if { $color != "none" && [info exists _limits($_curFldName)] &&
2657	$_settings(-numcontours) > 0 } {
2658
2659	if { $_settings(-customrange) } {
2660	set vmin [$itk_component(min) value]
2661	set vmax [$itk_component(max) value]
2662	} else {
2663	foreach { vmin vmax } $_limits($_curFldName) break
2664	}
2665	set range [expr double($vmax - $vmin)]
2666	if { $range <= 0.0 } {
2667	set range 1.0; # Min is greater or equal to max.
2668	}
2669	set tags "isoline legend"
2670	set offset [expr 2 + $lineht]
2671	if { $title != "" } {
2672	incr offset $lineht
2673	}
2674	foreach value $_contourList(values) {
2675	set norm [expr 1.0 - (($value - $vmin) / $range)]
2676	set y1 [expr int(round(($norm * $ih) + $offset))]
2677	for { set off 0 } { $off < 3 } { incr off } {
2678	set _isolines([expr $y1 + $off]) $value
2679	set _isolines([expr $y1 - $off]) $value
2680	}
2681	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2682	}
2683	}
2684
2685	$c bind title <ButtonPress> [itcl::code $this LegendTitleAction post]
2686	$c bind title <Enter> [itcl::code $this LegendTitleAction enter]
2687	$c bind title <Leave> [itcl::code $this LegendTitleAction leave]
2688	# Reset the item coordinates according the current size of the plot.
2689	$c itemconfigure title -text $title
2690	if { [info exists _limits($_curFldName)] } {
2691	if { $_settings(-customrange) } {
2692	set vmin [$itk_component(min) value]
2693	set vmax [$itk_component(max) value]
2694	} else {
2695	foreach { vmin vmax } $_limits($_curFldName) break
2696	}
2697	$c itemconfigure vmin -text [format %g $vmin]
2698	$c itemconfigure vmax -text [format %g $vmax]
2699	}
2700	set y 2
2701	# If there's a legend title, move the title to the correct position
2702	if { $title != "" } {
2703	$c itemconfigure title -text $title
2704	$c coords title $x $y
2705	incr y $lineht
2706	$c raise title
2707	}
2708	$c coords vmax $x $y
2709	incr y $lineht
2710	$c coords colormap $x $y
2711	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2712	$c raise sensor
2713	$c coords vmin $x [expr {$h - 2}]
2714
2715	$c bind vmin <ButtonPress> [itcl::code $this LegendRangeAction popup vmin]
2716	$c bind vmin <Enter> [itcl::code $this LegendRangeAction enter vmin]
2717	$c bind vmin <Leave> [itcl::code $this LegendRangeAction leave vmin]
2718
2719	$c bind vmax <ButtonPress> [itcl::code $this LegendRangeAction popup vmax]
2720	$c bind vmax <Enter> [itcl::code $this LegendRangeAction enter vmax]
2721	$c bind vmax <Leave> [itcl::code $this LegendRangeAction leave vmax]
2722	}
2723
2724	# ----------------------------------------------------------------------
2725	# USAGE: LegendTitleAction post
2726	# USAGE: LegendTitleAction enter
2727	# USAGE: LegendTitleAction leave
2728	# USAGE: LegendTitleAction save
2729	#
2730	# Used internally to handle the dropdown list for the fields menu combobox.
2731	# The post option is invoked when the field title is pressed to launch the
2732	# dropdown. The enter option is invoked when the user mouses over the field
2733	# title. The leave option is invoked when the user moves the mouse away
2734	# from the field title. The save option is invoked whenever there is a
2735	# selection from the list, to alert the visualization server.
2736	#
2737	# ----------------------------------------------------------------------
2738	itcl::body Rappture::VtkIsosurfaceViewer::LegendTitleAction {option} {
2739	set c $itk_component(view)
2740	switch -- $option {
2741	post {
2742	foreach { x1 y1 x2 y2 } [$c bbox title] break
2743	set cw [winfo width $itk_component(view)]
2744	set mw [winfo reqwidth $itk_component(fieldmenu)]
2745	set x1 [expr $cw - $mw]
2746	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2747	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2748	tk_popup $itk_component(fieldmenu) $x $y
2749	}
2750	enter {
2751	$c itemconfigure title -fill red
2752	}
2753	leave {
2754	$c itemconfigure title -fill $itk_option(-plotforeground)
2755	}
2756	save {
2757	$itk_component(field) value $_curFldLabel
2758	AdjustSetting -field
2759	}
2760	default {
2761	error "bad option \"$option\": should be post, enter, leave, save"
2762	}
2763	}
2764	}
2765
2766	# ----------------------------------------------------------------------
2767	# USAGE: LegendRangeValidate <widget> <which> <value>
2768	#
2769	# Used internally to validate a legend range min/max value.
2770	# Returns a boolean value telling if <value> was accepted (1) or rejected (0)
2771	# If the value is rejected, a tooltip/warning message is popped up
2772	# near the widget that asked for the validation, specified by <widget>
2773	#
2774	# <widget> is the widget where a tooltip/warning message should show up on
2775	# <which> is either "vmin" or "vmax".
2776	# <value> is the value to be validated.
2777	#
2778	# ----------------------------------------------------------------------
2779	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeValidate {widget which value} {
2780
2781	#check for a valid value
2782	if {[string is double $value] != 1} {
2783	set msg "should be valid number"
2784	if {$widget != ""} {
2785	Rappture::Tooltip::cue $widget $msg
2786	} else {
2787	# error "bad value \"$value\": $msg"
2788	error $msg
2789	}
2790	return 0
2791	}
2792
2793	switch -- $which {
2794	vmin {
2795	# check for min > max
2796	if {$value > [$itk_component(max) value]} {
2797	set msg "min > max, change max first"
2798	if {$widget != ""} {
2799	Rappture::Tooltip::cue $widget $msg
2800	} else {
2801	# error "bad value \"$value\": $msg"
2802	error $msg
2803	}
2804	return 0
2805	}
2806	}
2807	vmax {
2808	# check for max < min
2809	if {$value < [$itk_component(min) value]} {
2810	set msg "max < min, change min first"
2811	if {$widget != ""} {
2812	Rappture::Tooltip::cue $widget $msg
2813	} else {
2814	# error "bad value \"$value\": $msg"
2815	error $msg
2816	}
2817	return 0
2818	}
2819	}
2820	default {
2821	error "bad option \"$which\": should be vmin, vmax"
2822	}
2823	}
2824	}
2825
2826
2827	itcl::body Rappture::VtkIsosurfaceViewer::MouseOver2Which {} {
2828	switch -- $_mouseOver {
2829	vmin {
2830	set which min
2831	}
2832	vmax {
2833	set which max
2834	}
2835	default {
2836	error "bad _mouseOver \"$_mouseOver\": should be vmin, vmax"
2837	}
2838	}
2839	return $which
2840	}
2841
2842
2843	# ----------------------------------------------------------------------
2844	# USAGE: LegendRangeAction enter <which>
2845	# USAGE: LegendRangeAction leave <which>
2846	#
2847	# USAGE: LegendRangeAction popup <which>
2848	# USAGE: LegendRangeAction activate
2849	# USAGE: LegendRangeAction validate <value>
2850	# USAGE: LegendRangeAction apply <value>
2851	#
2852	# Used internally to handle the mouseover and popup entry for the field range
2853	# inputs. The enter option is invoked when the user moves the mouse over the
2854	# min or max field range. The leave option is invoked when the user moves the
2855	# mouse away from the min or max field range. The popup option is invoked when
2856	# the user click's on a field range. The popup option stores internally which
2857	# widget is requesting a popup ( in the _mouseOver variable) and calls the
2858	# activate command of the widget. The widget's activate command calls back to
2859	# this method to get the xywh dimensions of the popup editor. After the user
2860	# changes focus or sets the value in the editor, the editor calls this methods
2861	# validate and apply options to set the value.
2862	#
2863	# ----------------------------------------------------------------------
2864	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeAction {option args} {
2865	set c $itk_component(view)
2866
2867	switch -- $option {
2868	enter {
2869	set which [lindex $args 0]
2870	$c itemconfigure $which -fill red
2871	}
2872	leave {
2873	set which [lindex $args 0]
2874	$c itemconfigure $which -fill $itk_option(-plotforeground)
2875	}
2876	popup {
2877	DisableMouseRotationBindings
2878	set which [lindex $args 0]
2879	set _mouseOver $which
2880	$itk_component(editor) activate
2881	}
2882	activate {
2883	foreach { x1 y1 x2 y2 } [$c bbox $_mouseOver] break
2884	set which [MouseOver2Which]
2885	set info(text) [$itk_component($which) value]
2886	set info(x) [expr $x1 + [winfo rootx $c]]
2887	set info(y) [expr $y1 + [winfo rooty $c]]
2888	set info(w) [expr $x2 - $x1]
2889	set info(h) [expr $y2 - $y1]
2890	return [array get info]
2891	}
2892	validate {
2893	if {[llength $args] != 1} {
2894	error "wrong # args: should be \"editor validate value\""
2895	}
2896
2897	set value [lindex $args 0]
2898	if {[LegendRangeValidate $itk_component(editor) $_mouseOver $value] == 0} {
2899	return 0
2900	}
2901
2902	# value was good, apply it
2903	# reset the mouse rotation bindings
2904	SetupMouseRotationBindings
2905	}
2906	apply {
2907	if {[llength $args] != 1} {
2908	error "wrong # args: should be \"editor apply value\""
2909	}
2910	set value [string trim [lindex $args 0]]
2911
2912	set which [MouseOver2Which]
2913
2914	# only set custom range if value changed
2915	if {[$itk_component($which) value] != $value} {
2916	$itk_component($which) value $value
2917	$itk_component(crange) select
2918	}
2919	AdjustSetting -range
2920	}
2921	default {
2922	error "bad option \"$option\": should be enter, leave, activate, validate, apply"
2923	}
2924	}
2925	}
2926
2927
2928	#
2929	# SetCurrentColormap --
2930	#
2931	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
2932	# Keep track of the colormaps that we build.
2933	if { ![info exists _colormaps($name)] } {
2934	BuildColormap $name
2935	set _colormaps($name) 1
2936	}
2937	set _currentColormap $name
2938	SendCmd "contour3d colormap $_currentColormap"
2939	SendCmd "cutplane colormap $_currentColormap"
2940	}
2941
2942	#
2943	# BuildColormap --
2944	#
2945	# Build the designated colormap on the server.
2946	#
2947	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
2948	set cmap [ColorsToColormap $name]
2949	if { [llength $cmap] == 0 } {
2950	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2951	}
2952	set wmap "0.0 1.0 1.0 1.0"
2953	SendCmd "colormap add $name { $cmap } { $wmap }"
2954	}
2955
2956	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
2957	array set positions {
2958	front "1 0 0 0"
2959	back "0 0 1 0"
2960	left "0.707107 0 -0.707107 0"
2961	right "0.707107 0 0.707107 0"
2962	top "0.707107 -0.707107 0 0"
2963	bottom "0.707107 0.707107 0 0"
2964	}
2965	foreach name { -qw -qx -qy -qz } value $positions($side) {
2966	set _view($name) $value
2967	}
2968	set q [ViewToQuaternion]
2969	$_arcball quaternion $q
2970	SendCmd "camera orient $q"
2971	SendCmd "camera reset"
2972	set _view(-xpan) 0
2973	set _view(-ypan) 0
2974	set _view(-zoom) 1.0
2975	}
2976
2977	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
2978	if { ![info exists _limits($_curFldName)] } {
2979	puts stderr "no _curFldName"
2980	return ""
2981	}
2982	if { $_contourList(numLevels) < 1 } {
2983	# There are tools that set 0 levels to get cutplanes only
2984	#puts stderr "numLevels < 1"
2985	return ""
2986	}
2987	if { [llength $_contourList(reqValues)] > 1 } {
2988	set values $_contourList(reqValues)
2989	} else {
2990	# use the field limits to calculate the contour list values
2991	foreach { vmin vmax } $_limits($_curFldName) break
2992
2993	# if custom range has been set and are within the field's
2994	# range, use the custom min and max to generate contour list values
2995	if { $_settings(-customrange) } {
2996	if { [$itk_component(min) value] > $vmin } {
2997	set vmin [$itk_component(min) value]
2998	}
2999	if { [$itk_component(max) value] < $vmax } {
3000	set vmax [$itk_component(max) value]
3001	}
3002	}
3003
3004	set v [blt::vector create \#auto]
3005	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
3006	$v delete end 0
3007	set values [$v range 0 end]
3008	blt::vector destroy $v
3009	}
3010	set _contourList(values) $values
3011	}
3012
3013	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
3014	set _first $dataobj
3015	$itk_component(field) choices delete 0 end
3016	$itk_component(fieldmenu) delete 0 end
3017	array unset _fields
3018	set _curFldName ""
3019	foreach cname [$_first components] {
3020	foreach fname [$_first fieldnames $cname] {
3021	if { [info exists _fields($fname)] } {
3022	continue
3023	}
3024	foreach { label units components } \
3025	[$_first fieldinfo $fname] break
3026	$itk_component(field) choices insert end "$fname" "$label"
3027	$itk_component(fieldmenu) add radiobutton -label "$label" \
3028	-value $label -variable [itcl::scope _curFldLabel] \
3029	-selectcolor red \
3030	-activebackground $itk_option(-plotbackground) \
3031	-activeforeground $itk_option(-plotforeground) \
3032	-font "Arial 8" \
3033	-command [itcl::code $this LegendTitleAction save]
3034	set _fields($fname) [list $label $units $components]
3035	if { $_curFldName == "" } {
3036	set _curFldName $fname
3037	set _curFldLabel $label
3038	}
3039	}
3040	}
3041	$itk_component(field) value $_curFldLabel
3042	if { ![info exists _limits($_curFldName)] } {
3043	SendCmd "dataset maprange all"
3044	} else {
3045	set limits $_limits($_curFldName)
3046	SendCmd "dataset maprange explicit $limits $_curFldName"
3047	if { $limits != $_currentLimits } {
3048	set _currentLimits $limits
3049	EventuallyChangeContourLevels
3050	}
3051	}
3052	}

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source: branches/uiuc_vtk_viewers/gui/scripts/vtkisosurfaceviewer.tcl @ 5033

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