Context Navigation

source: trunk/gui/scripts/vtkisosurfaceviewer.tcl @ 5157

Last change on this file since 5157 was 5157, checked in by ldelgass, 10 years ago
Surface viewer fixes (based on changes from isosurface viewer)
File size: 111.3 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 SetMinMaxGauges { min max }
116	private method SetObjectStyle { dataobj comp }
117	private method SetOrientation { side }
118	private method SetupMouseRotationBindings {}
119	private method SetupMousePanningBindings {}
120	private method SetupKeyboardBindings {}
121	private method Slice {option args}
122	private method ToggleCustomRange { args }
123	private method ViewToQuaternion {} {
124	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
125	}
126	private method Zoom {option}
127
128	private variable _arcball ""
129
130	private variable _dlist "" ; # list of data objects
131	private variable _obj2datasets
132	private variable _obj2ovride ; # maps dataobj => style override
133	private variable _datasets ; # contains all the dataobj-component
134	; # datasets in the server
135	private variable _colormaps ; # contains all the colormaps
136	; # in the server.
137	# The name of the current colormap used. The colormap is global to all
138	# heightmaps displayed.
139	private variable _currentColormap ""
140	private variable _currentNumContours -1
141
142	private variable _dataset2style ;# maps dataobj-component to transfunc
143
144	private variable _click ; # info used for rotate operations
145	private variable _limits ; # autoscale min/max for all axes
146	private variable _view ; # view params for 3D view
147	private variable _settings
148	private variable _style; # Array of current component styles.
149	private variable _changed
150	private variable _initialStyle; # Array of initial component styles.
151	private variable _reset 1; # Connection to server has been reset.
152
153	private variable _first "" ; # This is the topmost dataset.
154	private variable _start 0
155	private variable _title ""
156	private variable _isolines
157	private variable _contourList
158	private variable _currentLimits ""
159	private variable _widget
160
161	common _downloadPopup; # download options from popup
162	private common _hardcopy
163	private variable _width 0
164	private variable _height 0
165	private variable _resizePending 0
166	private variable _rotatePending 0
167	private variable _cutplanePending 0
168	private variable _legendPending 0
169	private variable _field ""
170	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
171	private variable _fieldNames {}
172	private variable _fields
173	private variable _curFldName ""
174	private variable _curFldLabel ""
175
176	private variable _mouseOver ""; # what called LegendRangeAction, vmin or vmax
177	private variable _customRangeClick 1; # what called ToggleCustomRange
178	}
179
180	itk::usual VtkIsosurfaceViewer {
181	keep -background -foreground -cursor -font
182	keep -plotbackground -plotforeground
183	}
184
185	# ----------------------------------------------------------------------
186	# CONSTRUCTOR
187	# ----------------------------------------------------------------------
188	itcl::body Rappture::VtkIsosurfaceViewer::constructor {hostlist args} {
189	package require vtk
190	set _serverType "vtkvis"
191
192	# Rebuild event
193	$_dispatcher register !rebuild
194	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
195
196	# Resize event
197	$_dispatcher register !resize
198	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
199
200	# Rotate event
201	$_dispatcher register !rotate
202	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
203
204	# Legend event
205	$_dispatcher register !legend
206	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
207
208	# Contour levels event
209	$_dispatcher register !contours
210	$_dispatcher dispatch $this !contours \
211	"[itcl::code $this DoChangeContourLevels]; list"
212
213	# X-Cutplane event
214	$_dispatcher register !xcutplane
215	$_dispatcher dispatch $this !xcutplane \
216	"[itcl::code $this AdjustSetting -xcutplaneposition]; list"
217
218	# Y-Cutplane event
219	$_dispatcher register !ycutplane
220	$_dispatcher dispatch $this !ycutplane \
221	"[itcl::code $this AdjustSetting -ycutplaneposition]; list"
222
223	# Z-Cutplane event
224	$_dispatcher register !zcutplane
225	$_dispatcher dispatch $this !zcutplane \
226	"[itcl::code $this AdjustSetting -zcutplaneposition]; list"
227
228	#
229	# Populate parser with commands handle incoming requests
230	#
231	$_parser alias image [itcl::code $this ReceiveImage]
232	$_parser alias dataset [itcl::code $this ReceiveDataset]
233	$_parser alias legend [itcl::code $this ReceiveLegend]
234
235	# Initialize the view to some default parameters.
236	array set _view {
237	-ortho 0
238	-qw 0.853553
239	-qx -0.353553
240	-qy 0.353553
241	-qz 0.146447
242	-xpan 0
243	-ypan 0
244	-zoom 1.0
245	}
246	set _arcball [blt::arcball create 100 100]
247	$_arcball quaternion [ViewToQuaternion]
248
249	array set _contourList {
250	numLevels 10
251	reqValues ""
252	updatePending 0
253	values ""
254	}
255	array set _settings {
256	-axesvisible 1
257	-axislabels 1
258	-axisminorticks 1
259	-axismode "static"
260	-background black
261	-colormap BCGYR
262	-colormapvisible 1
263	-customrange 0
264	-customrangemin 0
265	-customrangemax 1
266	-cutplaneedges 0
267	-cutplanelighting 1
268	-cutplaneopacity 1.0
269	-cutplanepreinterp 1
270	-cutplanesvisible 0
271	-cutplanewireframe 0
272	-field "Default"
273	-isolinecolor white
274	-isosurfaceedges 0
275	-isosurfacelighting 1
276	-isosurfaceopacity 0.6
277	-isosurfacevisible 1
278	-isosurfacewireframe 0
279	-legendvisible 1
280	-numcontours 10
281	-outline 0
282	-xcutplaneposition 50
283	-xcutplanevisible 1
284	-xgrid 0
285	-ycutplaneposition 50
286	-ycutplanevisible 1
287	-ygrid 0
288	-zcutplaneposition 50
289	-zcutplanevisible 1
290	-zgrid 0
291	}
292	array set _changed {
293	-colormap 0
294	-cutplaneedges 0
295	-cutplanelighting 0
296	-cutplaneopacity 0
297	-cutplanepreinterp 0
298	-cutplanesvisible 0
299	-cutplanewireframe 0
300	-isosurfaceedges 0
301	-isosurfacelighting 0
302	-isosurfaceopacity 0
303	-isosurfacevisible 0
304	-isosurfacewireframe 0
305	-numcontours 0
306	-outline 0
307	-xcutplaneposition 0
308	-xcutplanevisible 0
309	-ycutplaneposition 0
310	-ycutplanevisible 0
311	-zcutplaneposition 0
312	-zcutplanevisible 0
313	}
314	array set _widget {
315	-isosurfaceopacity 60
316	-cutplaneopacity 100
317	}
318
319	itk_component add view {
320	canvas $itk_component(plotarea).view \
321	-highlightthickness 0 -borderwidth 0
322	} {
323	usual
324	ignore -highlightthickness -borderwidth -background
325	}
326
327	itk_component add fieldmenu {
328	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
329	-tearoff 0
330	} {
331	usual
332	ignore -background -foreground -relief -tearoff
333	}
334
335	# add an editor for adjusting the legend min and max values
336	itk_component add editor {
337	Rappture::Editor $itk_interior.editor \
338	-activatecommand [itcl::code $this LegendRangeAction activate] \
339	-validatecommand [itcl::code $this LegendRangeAction validate] \
340	-applycommand [itcl::code $this LegendRangeAction apply]
341	}
342
343	set c $itk_component(view)
344	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
345	bind $c <4> [itcl::code $this Zoom in 0.25]
346	bind $c <5> [itcl::code $this Zoom out 0.25]
347	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
348	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
349	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
350	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
351	bind $c <Enter> "focus %W"
352	bind $c <Control-F1> [itcl::code $this ToggleConsole]
353
354	# Fix the scrollregion in case we go off screen
355	$c configure -scrollregion [$c bbox all]
356
357	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
358	set _map(cwidth) -1
359	set _map(cheight) -1
360	set _map(zoom) 1.0
361	set _map(original) ""
362
363	set f [$itk_component(main) component controls]
364	itk_component add reset {
365	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
366	-highlightthickness 0 \
367	-image [Rappture::icon reset-view] \
368	-command [itcl::code $this Zoom reset]
369	} {
370	usual
371	ignore -highlightthickness
372	}
373	pack $itk_component(reset) -side top -padx 2 -pady 2
374	Rappture::Tooltip::for $itk_component(reset) \
375	"Reset the view to the default zoom level"
376
377	itk_component add zoomin {
378	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
379	-highlightthickness 0 \
380	-image [Rappture::icon zoom-in] \
381	-command [itcl::code $this Zoom in]
382	} {
383	usual
384	ignore -highlightthickness
385	}
386	pack $itk_component(zoomin) -side top -padx 2 -pady 2
387	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
388
389	itk_component add zoomout {
390	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
391	-highlightthickness 0 \
392	-image [Rappture::icon zoom-out] \
393	-command [itcl::code $this Zoom out]
394	} {
395	usual
396	ignore -highlightthickness
397	}
398	pack $itk_component(zoomout) -side top -padx 2 -pady 2
399	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
400
401	itk_component add contour {
402	Rappture::PushButton $f.contour \
403	-onimage [Rappture::icon volume-on] \
404	-offimage [Rappture::icon volume-off] \
405	-variable [itcl::scope _settings(-isosurfacevisible)] \
406	-command [itcl::code $this AdjustSetting -isosurfacevisible]
407	}
408	$itk_component(contour) select
409	Rappture::Tooltip::for $itk_component(contour) \
410	"Hide the isosurface"
411	pack $itk_component(contour) -padx 2 -pady 2
412
413	itk_component add cutplane {
414	Rappture::PushButton $f.cutplane \
415	-onimage [Rappture::icon cutbutton] \
416	-offimage [Rappture::icon cutbutton] \
417	-variable [itcl::scope _settings(-cutplanesvisible)] \
418	-command [itcl::code $this AdjustSetting -cutplanesvisible]
419	}
420	Rappture::Tooltip::for $itk_component(cutplane) \
421	"Show the cutplanes"
422	pack $itk_component(cutplane) -padx 2 -pady 2
423
424
425	if { [catch {
426	BuildIsosurfaceTab
427	BuildCutplaneTab
428	BuildAxisTab
429	BuildCameraTab
430	} errs] != 0 } {
431	puts stderr errs=$errs
432	}
433
434	# Legend
435	set _image(legend) [image create photo]
436	itk_component add legend {
437	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
438	} {
439	usual
440	ignore -highlightthickness
441	rename -background -plotbackground plotBackground Background
442	}
443
444	# Hack around the Tk panewindow. The problem is that the requested
445	# size of the 3d view isn't set until an image is retrieved from
446	# the server. So the panewindow uses the tiny size.
447	set w 10000
448	pack forget $itk_component(view)
449	blt::table $itk_component(plotarea) \
450	0,0 $itk_component(view) -fill both -reqwidth $w
451	blt::table configure $itk_component(plotarea) c1 -resize none
452
453	SetupMouseRotationBindings
454	SetupMousePanningBindings
455	SetupKeyboardBindings
456
457
458	#bind $itk_component(view) <ButtonRelease-3> \
459	# [itcl::code $this Pick %x %y]
460
461
462	if {[string equal "x11" [tk windowingsystem]]} {
463	# Bindings for zoom via mouse
464	bind $itk_component(view) <4> [itcl::code $this Zoom out]
465	bind $itk_component(view) <5> [itcl::code $this Zoom in]
466	}
467
468	set _image(download) [image create photo]
469
470	eval itk_initialize $args
471
472	EnableWaitDialog 900
473	Connect
474	}
475
476	# ----------------------------------------------------------------------
477	# DESTRUCTOR
478	# ----------------------------------------------------------------------
479	itcl::body Rappture::VtkIsosurfaceViewer::destructor {} {
480	Disconnect
481	image delete $_image(plot)
482	image delete $_image(download)
483	catch { blt::arcball destroy $_arcball }
484	}
485
486	itcl::body Rappture::VtkIsosurfaceViewer::SetupMouseRotationBindings {} {
487	# Bindings for rotation via mouse
488	bind $itk_component(view) <ButtonPress-1> \
489	[itcl::code $this Rotate click %x %y]
490	bind $itk_component(view) <B1-Motion> \
491	[itcl::code $this Rotate drag %x %y]
492	bind $itk_component(view) <ButtonRelease-1> \
493	[itcl::code $this Rotate release %x %y]
494	}
495
496	itcl::body Rappture::VtkIsosurfaceViewer::DisableMouseRotationBindings {} {
497	# Bindings for rotation via mouse
498	bind $itk_component(view) <ButtonPress-1> ""
499	bind $itk_component(view) <B1-Motion> ""
500	bind $itk_component(view) <ButtonRelease-1> ""
501	}
502
503	itcl::body Rappture::VtkIsosurfaceViewer::SetupMousePanningBindings {} {
504	# Bindings for panning via mouse
505	bind $itk_component(view) <ButtonPress-2> \
506	[itcl::code $this Pan click %x %y]
507	bind $itk_component(view) <B2-Motion> \
508	[itcl::code $this Pan drag %x %y]
509	bind $itk_component(view) <ButtonRelease-2> \
510	[itcl::code $this Pan release %x %y]
511	}
512
513	itcl::body Rappture::VtkIsosurfaceViewer::SetupKeyboardBindings {} {
514	# Bindings for panning via keyboard
515	bind $itk_component(view) <KeyPress-Left> \
516	[itcl::code $this Pan set -10 0]
517	bind $itk_component(view) <KeyPress-Right> \
518	[itcl::code $this Pan set 10 0]
519	bind $itk_component(view) <KeyPress-Up> \
520	[itcl::code $this Pan set 0 -10]
521	bind $itk_component(view) <KeyPress-Down> \
522	[itcl::code $this Pan set 0 10]
523	bind $itk_component(view) <Shift-KeyPress-Left> \
524	[itcl::code $this Pan set -2 0]
525	bind $itk_component(view) <Shift-KeyPress-Right> \
526	[itcl::code $this Pan set 2 0]
527	bind $itk_component(view) <Shift-KeyPress-Up> \
528	[itcl::code $this Pan set 0 -2]
529	bind $itk_component(view) <Shift-KeyPress-Down> \
530	[itcl::code $this Pan set 0 2]
531
532	# Bindings for zoom via keyboard
533	bind $itk_component(view) <KeyPress-Prior> \
534	[itcl::code $this Zoom out]
535	bind $itk_component(view) <KeyPress-Next> \
536	[itcl::code $this Zoom in]
537
538	bind $itk_component(view) <Enter> "focus $itk_component(view)"
539	}
540
541	itcl::body Rappture::VtkIsosurfaceViewer::DoResize {} {
542	if { $_width < 2 } {
543	set _width 500
544	}
545	if { $_height < 2 } {
546	set _height 500
547	}
548	set _start [clock clicks -milliseconds]
549	SendCmd "screen size $_width $_height"
550
551	EventuallyRequestLegend
552	set _resizePending 0
553	}
554
555	itcl::body Rappture::VtkIsosurfaceViewer::DoChangeContourLevels {} {
556	GenerateContourList
557	SendCmd [list contour3d contourlist $_contourList(values)]
558	SendCmd [list camera reset]
559	DrawLegend
560	set _contourList(updatePending) 0
561	}
562
563	itcl::body Rappture::VtkIsosurfaceViewer::DoRotate {} {
564	SendCmd "camera orient [ViewToQuaternion]"
565	set _rotatePending 0
566	}
567
568	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRequestLegend {} {
569	if { !$_legendPending } {
570	set _legendPending 1
571	$_dispatcher event -idle !legend
572	}
573	}
574
575	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyResize { w h } {
576	set _width $w
577	set _height $h
578	$_arcball resize $w $h
579	if { !$_resizePending } {
580	set _resizePending 1
581	$_dispatcher event -after 400 !resize
582	}
583	}
584
585	set rotate_delay 100
586
587	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyRotate { q } {
588	QuaternionToView $q
589	if { !$_rotatePending } {
590	set _rotatePending 1
591	global rotate_delay
592	$_dispatcher event -after $rotate_delay !rotate
593	}
594	}
595
596	itcl::body Rappture::VtkIsosurfaceViewer::EventuallySetCutplane { axis args } {
597	if { !$_cutplanePending } {
598	set _cutplanePending 1
599	$_dispatcher event -after 100 !${axis}cutplane
600	}
601	}
602
603	itcl::body Rappture::VtkIsosurfaceViewer::EventuallyChangeContourLevels {} {
604	set n $_contourList(numLevels)
605	set _contourList(values) ""
606	if { !$_contourList(updatePending) } {
607	set _contourList(updatePending) 1
608	global rotate_delay
609	$_dispatcher event -after $rotate_delay !contours
610	}
611	}
612
613	# ----------------------------------------------------------------------
614	# USAGE: add <dataobj> ?<settings>?
615	#
616	# Clients use this to add a data object to the plot. The optional
617	# <settings> are used to configure the plot. Allowed settings are
618	# -color, -brightness, -width, -linestyle, and -raise.
619	# ----------------------------------------------------------------------
620	itcl::body Rappture::VtkIsosurfaceViewer::add {dataobj {settings ""}} {
621	if { ![$dataobj isvalid] } {
622	return; # Object doesn't contain valid data.
623	}
624	array set params {
625	-color auto
626	-width 1
627	-linestyle solid
628	-brightness 0
629	-raise 0
630	-description ""
631	-param ""
632	-type ""
633	}
634	array set params $settings
635	set params(-description) ""
636	set params(-param) ""
637	array set params $settings
638
639	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
640	# can't handle -autocolors yet
641	set params(-color) black
642	}
643	set pos [lsearch -exact $_dlist $dataobj]
644	if {$pos < 0} {
645	lappend _dlist $dataobj
646	}
647	set _obj2ovride($dataobj-color) $params(-color)
648	set _obj2ovride($dataobj-width) $params(-width)
649	set _obj2ovride($dataobj-raise) $params(-raise)
650	$_dispatcher event -idle !rebuild
651	}
652
653	# ----------------------------------------------------------------------
654	# USAGE: delete ?<dataobj1> <dataobj2> ...?
655	#
656	# Clients use this to delete a dataobj from the plot. If no dataobjs
657	# are specified, then all dataobjs are deleted. No data objects are
658	# deleted. They are only removed from the display list.
659	#
660	# ----------------------------------------------------------------------
661	itcl::body Rappture::VtkIsosurfaceViewer::delete {args} {
662	if { [llength $args] == 0} {
663	set args $_dlist
664	}
665	# Delete all specified dataobjs
666	set changed 0
667	foreach dataobj $args {
668	set pos [lsearch -exact $_dlist $dataobj]
669	if { $pos < 0 } {
670	continue; # Don't know anything about it.
671	}
672	# Remove it from the dataobj list.
673	set _dlist [lreplace $_dlist $pos $pos]
674	array unset _obj2ovride $dataobj-*
675	array unset _settings $dataobj-*
676	set changed 1
677	}
678	# If anything changed, then rebuild the plot
679	if { $changed } {
680	$_dispatcher event -idle !rebuild
681	}
682	}
683
684	# ----------------------------------------------------------------------
685	# USAGE: get ?-objects?
686	# USAGE: get ?-visible?
687	# USAGE: get ?-image view?
688	#
689	# Clients use this to query the list of objects being plotted, in
690	# order from bottom to top of this result. The optional "-image"
691	# flag can also request the internal images being shown.
692	# ----------------------------------------------------------------------
693	itcl::body Rappture::VtkIsosurfaceViewer::get {args} {
694	if {[llength $args] == 0} {
695	set args "-objects"
696	}
697
698	set op [lindex $args 0]
699	switch -- $op {
700	"-objects" {
701	# put the dataobj list in order according to -raise options
702	set dlist {}
703	foreach dataobj $_dlist {
704	if { ![IsValidObject $dataobj] } {
705	continue
706	}
707	if {[info exists _obj2ovride($dataobj-raise)] &&
708	$_obj2ovride($dataobj-raise)} {
709	set dlist [linsert $dlist 0 $dataobj]
710	} else {
711	lappend dlist $dataobj
712	}
713	}
714	return $dlist
715	}
716	"-visible" {
717	set dlist {}
718	foreach dataobj $_dlist {
719	if { ![IsValidObject $dataobj] } {
720	continue
721	}
722	if { ![info exists _obj2ovride($dataobj-raise)] } {
723	# No setting indicates that the object isn't visible.
724	continue
725	}
726	# Otherwise use the -raise parameter to put the object to
727	# the front of the list.
728	if { $_obj2ovride($dataobj-raise) } {
729	set dlist [linsert $dlist 0 $dataobj]
730	} else {
731	lappend dlist $dataobj
732	}
733	}
734	return $dlist
735	}
736	-image {
737	if {[llength $args] != 2} {
738	error "wrong # args: should be \"get -image view\""
739	}
740	switch -- [lindex $args end] {
741	view {
742	return $_image(plot)
743	}
744	default {
745	error "bad image name \"[lindex $args end]\": should be view"
746	}
747	}
748	}
749	default {
750	error "bad option \"$op\": should be -objects or -image"
751	}
752	}
753	}
754
755	# ----------------------------------------------------------------------
756	# USAGE: scale ?<data1> <data2> ...?
757	#
758	# Sets the default limits for the overall plot according to the
759	# limits of the data for all of the given <data> objects. This
760	# accounts for all objects--even those not showing on the screen.
761	# Because of this, the limits are appropriate for all objects as
762	# the user scans through data in the ResultSet viewer.
763	# ----------------------------------------------------------------------
764	itcl::body Rappture::VtkIsosurfaceViewer::scale { args } {
765	foreach dataobj $args {
766	if { ![$dataobj isvalid] } {
767	continue; # Object doesn't contain valid data.
768	}
769	foreach axis { x y z } {
770	set lim [$dataobj limits $axis]
771	if { ![info exists _limits($axis)] } {
772	set _limits($axis) $lim
773	continue
774	}
775	foreach {min max} $lim break
776	foreach {amin amax} $_limits($axis) break
777	if { $amin > $min } {
778	set amin $min
779	}
780	if { $amax < $max } {
781	set amax $max
782	}
783	set _limits($axis) [list $amin $amax]
784	}
785	foreach { fname lim } [$dataobj fieldlimits] {
786	if { ![info exists _limits($fname)] } {
787	set _limits($fname) $lim
788
789	# set reasonable defaults for
790	# customrangevmin and customrangevmax
791	foreach {min max} $lim break
792	SetMinMaxGauges $min $max
793	set _settings(-customrangemin) $min
794	set _settings(-customrangemax) $max
795
796	continue
797	}
798	foreach {min max} $lim break
799	foreach {fmin fmax} $_limits($fname) break
800	if { ! $_settings(-customrange) } {
801	SetMinMaxGauges $fmin $fmax
802	}
803	if { $fmin > $min } {
804	set fmin $min
805	}
806	if { $fmax < $max } {
807	set fmax $max
808	}
809	set _limits($fname) [list $fmin $fmax]
810	}
811	}
812	}
813
814	# ----------------------------------------------------------------------
815	# USAGE: download coming
816	# USAGE: download controls <downloadCommand>
817	# USAGE: download now
818	#
819	# Clients use this method to create a downloadable representation
820	# of the plot. Returns a list of the form {ext string}, where
821	# "ext" is the file extension (indicating the type of data) and
822	# "string" is the data itself.
823	# ----------------------------------------------------------------------
824	itcl::body Rappture::VtkIsosurfaceViewer::download {option args} {
825	switch $option {
826	coming {
827	if {[catch {
828	blt::winop snap $itk_component(plotarea) $_image(download)
829	}]} {
830	$_image(download) configure -width 1 -height 1
831	$_image(download) put #000000
832	}
833	}
834	controls {
835	set popup .vtkviewerdownload
836	if { ![winfo exists .vtkviewerdownload] } {
837	set inner [BuildDownloadPopup $popup [lindex $args 0]]
838	} else {
839	set inner [$popup component inner]
840	}
841	set _downloadPopup(image_controls) $inner.image_frame
842	set num [llength [get]]
843	set num [expr {($num == 1) ? "1 result" : "$num results"}]
844	set word [Rappture::filexfer::label downloadWord]
845	$inner.summary configure -text "$word $num in the following format:"
846	update idletasks ;# Fix initial sizes
847	return $popup
848	}
849	now {
850	set popup .vtkviewerdownload
851	if {[winfo exists .vtkviewerdownload]} {
852	$popup deactivate
853	}
854	switch -- $_downloadPopup(format) {
855	"image" {
856	return [$this GetImage [lindex $args 0]]
857	}
858	"vtk" {
859	return [$this GetVtkData [lindex $args 0]]
860	}
861	}
862	return ""
863	}
864	default {
865	error "bad option \"$option\": should be coming, controls, now"
866	}
867	}
868	}
869
870	# ----------------------------------------------------------------------
871	# USAGE: Connect ?<host:port>,<host:port>...?
872	#
873	# Clients use this method to establish a connection to a new
874	# server, or to reestablish a connection to the previous server.
875	# Any existing connection is automatically closed.
876	# ----------------------------------------------------------------------
877	itcl::body Rappture::VtkIsosurfaceViewer::Connect {} {
878	set _hosts [GetServerList "vtkvis"]
879	if { "" == $_hosts } {
880	return 0
881	}
882	set _reset 1
883	set result [VisViewer::Connect $_hosts]
884	if { $result } {
885	if { $_reportClientInfo } {
886	# Tell the server the viewer, hub, user and session.
887	# Do this immediately on connect before buffering any commands
888	global env
889
890	set info {}
891	set user "???"
892	if { [info exists env(USER)] } {
893	set user $env(USER)
894	}
895	set session "???"
896	if { [info exists env(SESSION)] } {
897	set session $env(SESSION)
898	}
899	lappend info "version" "$Rappture::version"
900	lappend info "build" "$Rappture::build"
901	lappend info "svnurl" "$Rappture::svnurl"
902	lappend info "installdir" "$Rappture::installdir"
903	lappend info "hub" [exec hostname]
904	lappend info "client" "vtkisosurfaceviewer"
905	lappend info "user" $user
906	lappend info "session" $session
907	SendCmd "clientinfo [list $info]"
908	}
909
910	set w [winfo width $itk_component(view)]
911	set h [winfo height $itk_component(view)]
912	EventuallyResize $w $h
913	}
914	return $result
915	}
916
917	#
918	# isconnected --
919	#
920	# Indicates if we are currently connected to the visualization server.
921	#
922	itcl::body Rappture::VtkIsosurfaceViewer::isconnected {} {
923	return [VisViewer::IsConnected]
924	}
925
926	#
927	# disconnect --
928	#
929	itcl::body Rappture::VtkIsosurfaceViewer::disconnect {} {
930	Disconnect
931	set _reset 1
932	}
933
934	#
935	# Disconnect --
936	#
937	# Clients use this method to disconnect from the current rendering
938	# server.
939	#
940	itcl::body Rappture::VtkIsosurfaceViewer::Disconnect {} {
941	VisViewer::Disconnect
942
943	$_dispatcher cancel !rebuild
944	$_dispatcher cancel !resize
945	$_dispatcher cancel !rotate
946	$_dispatcher cancel !xcutplane
947	$_dispatcher cancel !ycutplane
948	$_dispatcher cancel !zcutplane
949	$_dispatcher cancel !legend
950	# disconnected -- no more data sitting on server
951	array unset _datasets
952	array unset _data
953	array unset _colormaps
954	array unset _dataset2style
955	array unset _obj2datasets
956	}
957
958	# ----------------------------------------------------------------------
959	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
960	#
961	# Invoked automatically whenever the "image" command comes in from
962	# the rendering server. Indicates that binary image data with the
963	# specified <size> will follow.
964	# ----------------------------------------------------------------------
965	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveImage { args } {
966	array set info {
967	-token "???"
968	-bytes 0
969	-type image
970	}
971	array set info $args
972	set bytes [ReceiveBytes $info(-bytes)]
973	if { $info(-type) == "image" } {
974	if 0 {
975	set f [open "last.ppm" "w"]
976	fconfigure $f -encoding binary
977	puts -nonewline $f $bytes
978	close $f
979	}
980	$_image(plot) configure -data $bytes
981	#set time [clock seconds]
982	#set date [clock format $time]
983	#set w [image width $_image(plot)]
984	#set h [image height $_image(plot)]
985	#puts stderr "$date: received image ${w}x${h} image"
986	if { $_start > 0 } {
987	set finish [clock clicks -milliseconds]
988	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
989	set _start 0
990	}
991	} elseif { $info(type) == "print" } {
992	set tag $this-print-$info(-token)
993	set _hardcopy($tag) $bytes
994	}
995	}
996
997	#
998	# ReceiveDataset --
999	#
1000	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveDataset { args } {
1001	if { ![isconnected] } {
1002	return
1003	}
1004	set option [lindex $args 0]
1005	switch -- $option {
1006	"scalar" {
1007	set option [lindex $args 1]
1008	switch -- $option {
1009	"world" {
1010	foreach { x y z value tag } [lrange $args 2 end] break
1011	}
1012	"pixel" {
1013	foreach { x y value tag } [lrange $args 2 end] break
1014	}
1015	}
1016	}
1017	"vector" {
1018	set option [lindex $args 1]
1019	switch -- $option {
1020	"world" {
1021	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
1022	}
1023	"pixel" {
1024	foreach { x y vx vy vz tag } [lrange $args 2 end] break
1025	}
1026	}
1027	}
1028	"names" {
1029	foreach { name } [lindex $args 1] {
1030	#puts stderr "Dataset: $name"
1031	}
1032	}
1033	default {
1034	error "unknown dataset option \"$option\" from server"
1035	}
1036	}
1037	}
1038
1039	# ----------------------------------------------------------------------
1040	# USAGE: Rebuild
1041	#
1042	# Called automatically whenever something changes that affects the
1043	# data in the widget. Clears any existing data and rebuilds the
1044	# widget to display new data.
1045	# ----------------------------------------------------------------------
1046	itcl::body Rappture::VtkIsosurfaceViewer::Rebuild {} {
1047	set w [winfo width $itk_component(view)]
1048	set h [winfo height $itk_component(view)]
1049	if { $w < 2 \|\| $h < 2 } {
1050	update
1051	$_dispatcher event -idle !rebuild
1052	return
1053	}
1054
1055	# Turn on buffering of commands to the server. We don't want to
1056	# be preempted by a server disconnect/reconnect (which automatically
1057	# generates a new call to Rebuild).
1058	StartBufferingCommands
1059
1060	if { $_reset } {
1061	set _width $w
1062	set _height $h
1063	$_arcball resize $w $h
1064	DoResize
1065
1066	# Reset the camera and other view parameters
1067	$_arcball quaternion [ViewToQuaternion]
1068	InitSettings -ortho
1069	DoRotate
1070	PanCamera
1071	set _first ""
1072	InitSettings -background \
1073	-xgrid -ygrid -zgrid -axismode \
1074	-axesvisible -axislabels -axisminorticks
1075	#SendCmd "axis lformat all %g"
1076	StopBufferingCommands
1077	SendCmd "imgflush"
1078	StartBufferingCommands
1079	}
1080	set _first ""
1081	SendCmd "dataset visible 0"
1082	eval scale $_dlist
1083	foreach dataobj [get -objects] {
1084	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
1085	set _first $dataobj
1086	SetCurrentFieldName $dataobj
1087	}
1088	set _obj2datasets($dataobj) ""
1089	foreach comp [$dataobj components] {
1090	set tag $dataobj-$comp
1091	if { ![info exists _datasets($tag)] } {
1092	set bytes [$dataobj vtkdata $comp]
1093	if 0 {
1094	set f [open "/tmp/isosurface.vtk" "w"]
1095	fconfigure $f -translation binary -encoding binary
1096	puts -nonewline $f $bytes
1097	close $f
1098	}
1099	set length [string length $bytes]
1100	if { $_reportClientInfo } {
1101	set info {}
1102	lappend info "tool_id" [$dataobj hints toolid]
1103	lappend info "tool_name" [$dataobj hints toolname]
1104	lappend info "tool_title" [$dataobj hints tooltitle]
1105	lappend info "tool_command" [$dataobj hints toolcommand]
1106	lappend info "tool_revision" [$dataobj hints toolrevision]
1107	lappend info "dataset_label" [$dataobj hints label]
1108	lappend info "dataset_size" $length
1109	lappend info "dataset_tag" $tag
1110	SendCmd "clientinfo [list $info]"
1111	}
1112	SendCmd "dataset add $tag data follows $length"
1113	SendData $bytes
1114	set _datasets($tag) 1
1115	SetObjectStyle $dataobj $comp
1116	}
1117	lappend _obj2datasets($dataobj) $tag
1118	if { [info exists _obj2ovride($dataobj-raise)] } {
1119	SendCmd "contour3d visible 1 $tag"
1120	}
1121	}
1122	}
1123
1124	InitSettings -cutplanesvisible -isosurfacevisible -outline
1125	if { $_reset } {
1126	# These are settings that rely on a dataset being loaded.
1127	InitSettings \
1128	-isosurfacelighting \
1129	-field \
1130	-range \
1131	-isosurfacevisible \
1132	-isosurfaceedges -isosurfacelighting -isosurfaceopacity \
1133	-isosurfacewireframe \
1134	-cutplanesvisible \
1135	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
1136	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
1137	-cutplanepreinterp -numcontours
1138
1139	Zoom reset
1140	foreach axis { x y z } {
1141	set label ""
1142	if { $_first != "" } {
1143	set label [$_first hints ${axis}label]
1144	}
1145	if { $label == "" } {
1146	set label [string toupper $axis]
1147	}
1148	# May be a space in the axis label
1149	SendCmd [list axis name $axis $label]
1150	}
1151	if { [array size _fields] < 2 } {
1152	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1153	}
1154	set _reset 0
1155	}
1156	# Redraw the legend even if we're using the same colormap. The position
1157	# of the isolines may have changed because the range of data changed.
1158	DrawLegend
1159
1160	# Actually write the commands to the server socket. If it fails, we don't
1161	# care. We're finished here.
1162	blt::busy hold $itk_component(hull)
1163	StopBufferingCommands; # Turn off buffering and send commands.
1164	blt::busy release $itk_component(hull)
1165	}
1166
1167	# ----------------------------------------------------------------------
1168	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1169	#
1170	# Returns a list of server IDs for the current datasets being displayed. This
1171	# is normally a single ID, but it might be a list of IDs if the current data
1172	# object has multiple components.
1173	# ----------------------------------------------------------------------
1174	itcl::body Rappture::VtkIsosurfaceViewer::CurrentDatasets {args} {
1175	set flag [lindex $args 0]
1176	switch -- $flag {
1177	"-all" {
1178	if { [llength $args] > 1 } {
1179	error "CurrentDatasets: can't specify dataobj after \"-all\""
1180	}
1181	set dlist [get -objects]
1182	}
1183	"-visible" {
1184	if { [llength $args] > 1 } {
1185	set dlist {}
1186	set args [lrange $args 1 end]
1187	foreach dataobj $args {
1188	if { [info exists _obj2ovride($dataobj-raise)] } {
1189	lappend dlist $dataobj
1190	}
1191	}
1192	} else {
1193	set dlist [get -visible]
1194	}
1195	}
1196	default {
1197	set dlist $args
1198	}
1199	}
1200	set rlist ""
1201	foreach dataobj $dlist {
1202	foreach comp [$dataobj components] {
1203	set tag $dataobj-$comp
1204	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1205	lappend rlist $tag
1206	}
1207	}
1208	}
1209	return $rlist
1210	}
1211
1212	# ----------------------------------------------------------------------
1213	# USAGE: Zoom in
1214	# USAGE: Zoom out
1215	# USAGE: Zoom reset
1216	#
1217	# Called automatically when the user clicks on one of the zoom
1218	# controls for this widget. Changes the zoom for the current view.
1219	# ----------------------------------------------------------------------
1220	itcl::body Rappture::VtkIsosurfaceViewer::Zoom {option} {
1221	switch -- $option {
1222	"in" {
1223	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1224	SendCmd "camera zoom $_view(-zoom)"
1225	}
1226	"out" {
1227	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1228	SendCmd "camera zoom $_view(-zoom)"
1229	}
1230	"reset" {
1231	array set _view {
1232	-qw 0.853553
1233	-qx -0.353553
1234	-qy 0.353553
1235	-qz 0.146447
1236	-xpan 0
1237	-ypan 0
1238	-zoom 1.0
1239	}
1240	if { $_first != "" } {
1241	set location [$_first hints camera]
1242	if { $location != "" } {
1243	array set _view $location
1244	}
1245	}
1246	$_arcball quaternion [ViewToQuaternion]
1247	DoRotate
1248	SendCmd "camera reset"
1249	}
1250	}
1251	}
1252
1253	itcl::body Rappture::VtkIsosurfaceViewer::PanCamera {} {
1254	set x $_view(-xpan)
1255	set y $_view(-ypan)
1256	SendCmd "camera pan $x $y"
1257	}
1258
1259	# ----------------------------------------------------------------------
1260	# USAGE: Rotate click <x> <y>
1261	# USAGE: Rotate drag <x> <y>
1262	# USAGE: Rotate release <x> <y>
1263	#
1264	# Called automatically when the user clicks/drags/releases in the
1265	# plot area. Moves the plot according to the user's actions.
1266	# ----------------------------------------------------------------------
1267	itcl::body Rappture::VtkIsosurfaceViewer::Rotate {option x y} {
1268	switch -- $option {
1269	"click" {
1270	$itk_component(view) configure -cursor fleur
1271	set _click(x) $x
1272	set _click(y) $y
1273	}
1274	"drag" {
1275	if {[array size _click] == 0} {
1276	Rotate click $x $y
1277	} else {
1278	set w [winfo width $itk_component(view)]
1279	set h [winfo height $itk_component(view)]
1280	if {$w <= 0 \|\| $h <= 0} {
1281	return
1282	}
1283
1284	if {[catch {
1285	# this fails sometimes for no apparent reason
1286	set dx [expr {double($x-$_click(x))/$w}]
1287	set dy [expr {double($y-$_click(y))/$h}]
1288	}]} {
1289	return
1290	}
1291	if { $dx == 0 && $dy == 0 } {
1292	return
1293	}
1294	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1295	EventuallyRotate $q
1296	set _click(x) $x
1297	set _click(y) $y
1298	}
1299	}
1300	"release" {
1301	Rotate drag $x $y
1302	$itk_component(view) configure -cursor ""
1303	catch {unset _click}
1304	}
1305	default {
1306	error "bad option \"$option\": should be click, drag, release"
1307	}
1308	}
1309	}
1310
1311	itcl::body Rappture::VtkIsosurfaceViewer::Pick {x y} {
1312	foreach tag [CurrentDatasets -visible] {
1313	SendCmd "dataset getscalar pixel $x $y $tag"
1314	}
1315	}
1316
1317	# ----------------------------------------------------------------------
1318	# USAGE: $this Pan click x y
1319	# $this Pan drag x y
1320	# $this Pan release x y
1321	#
1322	# Called automatically when the user clicks on one of the zoom
1323	# controls for this widget. Changes the zoom for the current view.
1324	# ----------------------------------------------------------------------
1325	itcl::body Rappture::VtkIsosurfaceViewer::Pan {option x y} {
1326	switch -- $option {
1327	"set" {
1328	set w [winfo width $itk_component(view)]
1329	set h [winfo height $itk_component(view)]
1330	set x [expr $x / double($w)]
1331	set y [expr $y / double($h)]
1332	set _view(-xpan) [expr $_view(-xpan) + $x]
1333	set _view(-ypan) [expr $_view(-ypan) + $y]
1334	PanCamera
1335	return
1336	}
1337	"click" {
1338	set _click(x) $x
1339	set _click(y) $y
1340	$itk_component(view) configure -cursor hand1
1341	}
1342	"drag" {
1343	if { ![info exists _click(x)] } {
1344	set _click(x) $x
1345	}
1346	if { ![info exists _click(y)] } {
1347	set _click(y) $y
1348	}
1349	set w [winfo width $itk_component(view)]
1350	set h [winfo height $itk_component(view)]
1351	set dx [expr ($_click(x) - $x)/double($w)]
1352	set dy [expr ($_click(y) - $y)/double($h)]
1353	set _click(x) $x
1354	set _click(y) $y
1355	set _view(-xpan) [expr $_view(-xpan) - $dx]
1356	set _view(-ypan) [expr $_view(-ypan) - $dy]
1357	PanCamera
1358	}
1359	"release" {
1360	Pan drag $x $y
1361	$itk_component(view) configure -cursor ""
1362	}
1363	default {
1364	error "unknown option \"$option\": should set, click, drag, or release"
1365	}
1366	}
1367	}
1368
1369	# ----------------------------------------------------------------------
1370	# USAGE: InitSettings <what> ?<value>?
1371	#
1372	# Used internally to update rendering settings whenever parameters
1373	# change in the popup settings panel. Sends the new settings off
1374	# to the back end.
1375	# ----------------------------------------------------------------------
1376	itcl::body Rappture::VtkIsosurfaceViewer::InitSettings { args } {
1377	foreach spec $args {
1378	if { [info exists _settings($_first-$spec)] } {
1379	# Reset global setting with dataobj specific setting
1380	set _settings($spec) $_settings($_first-$spec)
1381	}
1382	AdjustSetting $spec
1383	}
1384	}
1385
1386	#
1387	# AdjustSetting --
1388	#
1389	# Changes/updates a specific setting in the widget. There are
1390	# usually user-setable option. Commands are sent to the render
1391	# server.
1392	#
1393	itcl::body Rappture::VtkIsosurfaceViewer::AdjustSetting {what {value ""}} {
1394	if { ![isconnected] } {
1395	return
1396	}
1397	switch -- $what {
1398	"-axesvisible" {
1399	set bool $_settings($what)
1400	SendCmd "axis visible all $bool"
1401	}
1402	"-axislabels" {
1403	set bool $_settings($what)
1404	SendCmd "axis labels all $bool"
1405	}
1406	"-axisminorticks" {
1407	set bool $_settings($what)
1408	SendCmd "axis minticks all $bool"
1409	}
1410	"-axismode" {
1411	set mode [$itk_component(axisMode) value]
1412	set mode [$itk_component(axisMode) translate $mode]
1413	set _settings($what) $mode
1414	SendCmd "axis flymode $mode"
1415	}
1416	"-background" {
1417	set bgcolor [$itk_component(background) value]
1418	array set fgcolors {
1419	"black" "white"
1420	"white" "black"
1421	"grey" "black"
1422	}
1423	configure -plotbackground $bgcolor \
1424	-plotforeground $fgcolors($bgcolor)
1425	$itk_component(view) delete "legend"
1426	DrawLegend
1427	}
1428	"-cutplaneedges" {
1429	set _changed($what) 1
1430	set bool $_settings($what)
1431	SendCmd "cutplane edges $bool"
1432	}
1433	"-cutplanelighting" {
1434	set _changed($what) 1
1435	set bool $_settings($what)
1436	SendCmd "cutplane lighting $bool"
1437	}
1438	"-cutplaneopacity" {
1439	set _changed($what) 1
1440	set _settings($what) [expr $_widget($what) * 0.01]
1441	SendCmd "cutplane opacity $_settings($what)"
1442	}
1443	"-cutplanepreinterp" {
1444	set _changed($what) 1
1445	set bool $_settings($what)
1446	SendCmd "cutplane preinterp $bool"
1447	}
1448	"-cutplanesvisible" {
1449	set _changed($what) 1
1450	set bool $_settings($what)
1451	SendCmd "cutplane visible 0"
1452	if { $bool } {
1453	foreach tag [CurrentDatasets -visible] {
1454	SendCmd "cutplane visible $bool $tag"
1455	}
1456	}
1457	if { $bool } {
1458	Rappture::Tooltip::for $itk_component(cutplane) \
1459	"Hide the cutplanes"
1460	} else {
1461	Rappture::Tooltip::for $itk_component(cutplane) \
1462	"Show the cutplanes"
1463	}
1464	}
1465	"-cutplanewireframe" {
1466	set _changed($what) 1
1467	set bool $_settings($what)
1468	SendCmd "cutplane wireframe $bool"
1469	}
1470	"-colormap" {
1471	set _changed($what) 1
1472	StartBufferingCommands
1473	set color [$itk_component(colormap) value]
1474	set _settings($what) $color
1475	if { $color == "none" } {
1476	if { $_settings(-colormapvisible) } {
1477	SendCmd "contour3d colormode constant {}"
1478	set _settings(-colormapvisible) 0
1479	}
1480	} else {
1481	if { !$_settings(-colormapvisible) } {
1482	SendCmd "contour3d colormode $_colorMode $_curFldName"
1483	set _settings(-colormapvisible) 1
1484	}
1485	SetCurrentColormap $color
1486	}
1487	StopBufferingCommands
1488	EventuallyRequestLegend
1489	}
1490	"-field" {
1491	set label [$itk_component(field) value]
1492	set fname [$itk_component(field) translate $label]
1493	set _settings($what) $fname
1494	if { [info exists _fields($fname)] } {
1495	foreach { label units components } $_fields($fname) break
1496	if { $components > 1 } {
1497	set _colorMode vmag
1498	} else {
1499	set _colorMode scalar
1500	}
1501	set _curFldName $fname
1502	set _curFldLabel $label
1503	} else {
1504	puts stderr "unknown field \"$fname\""
1505	return
1506	}
1507	SendCmd "dataset scalar $_curFldName"
1508	if { ![info exists _limits($_curFldName)] } {
1509	SendCmd "dataset maprange all"
1510	} else {
1511	if { $_settings(-customrange) } {
1512	set vmin [$itk_component(min) value]
1513	set vmax [$itk_component(max) value]
1514	} else {
1515	foreach { vmin vmax } $_limits($_curFldName) break
1516	# set the min / max gauges with limits from the field
1517	# the legend's min and max text will be updated
1518	# when the legend is redrawn in DrawLegend
1519	SetMinMaxGauges $vmin $vmax
1520	}
1521	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1522	}
1523	SendCmd "cutplane colormode $_colorMode $_curFldName"
1524	SendCmd "contour3d colormode $_colorMode $_curFldName"
1525	SendCmd "camera reset"
1526	GenerateContourList
1527	DrawLegend
1528	}
1529	"-isolinecolor" {
1530	set color [$itk_component(isolineColor) value]
1531	set _settings($what) $color
1532	DrawLegend
1533	}
1534	"-isosurfaceedges" {
1535	set _changed($what) 1
1536	set bool $_settings($what)
1537	SendCmd "contour3d edges $bool"
1538	}
1539	"-isosurfacelighting" {
1540	set _changed($what) 1
1541	set bool $_settings($what)
1542	SendCmd "contour3d lighting $bool"
1543	}
1544	"-isosurfaceopacity" {
1545	set _changed($what) 1
1546	set _settings($what) [expr $_widget($what) * 0.01]
1547	SendCmd "contour3d opacity $_settings($what)"
1548	}
1549	"-isosurfacevisible" {
1550	set _changed($what) 1
1551	set bool $_settings($what)
1552	SendCmd "contour3d visible 0"
1553	if { $bool } {
1554	foreach tag [CurrentDatasets -visible] {
1555	SendCmd "contour3d visible $bool $tag"
1556	}
1557	Rappture::Tooltip::for $itk_component(contour) \
1558	"Hide the isosurface"
1559	} else {
1560	Rappture::Tooltip::for $itk_component(contour) \
1561	"Show the isosurface"
1562	}
1563	}
1564	"-isosurfacewireframe" {
1565	set _changed($what) 1
1566	set bool $_settings($what)
1567	SendCmd "contour3d wireframe $bool"
1568	}
1569	"-legendvisible" {
1570	if { !$_settings($what) } {
1571	$itk_component(view) delete legend
1572	}
1573	DrawLegend
1574	}
1575	"-numcontours" {
1576	set _changed($what) 1
1577	set _settings($what) [$itk_component(numcontours) value]
1578	if { $_contourList(numLevels) != $_settings($what) } {
1579	set _contourList(numLevels) $_settings($what)
1580	EventuallyChangeContourLevels
1581	}
1582	}
1583	"-ortho" {
1584	set bool $_view($what)
1585	if { $bool } {
1586	SendCmd "camera mode ortho"
1587	} else {
1588	SendCmd "camera mode persp"
1589	}
1590	}
1591	"-outline" {
1592	set _changed($what) 1
1593	set bool $_settings($what)
1594	SendCmd "outline visible 0"
1595	if { $bool } {
1596	foreach tag [CurrentDatasets -visible] {
1597	SendCmd "outline visible $bool $tag"
1598	}
1599	}
1600	}
1601	"-range" {
1602	if { $_settings(-customrange) } {
1603	set vmin [$itk_component(min) value]
1604	set vmax [$itk_component(max) value]
1605	} else {
1606	foreach { vmin vmax } $_limits($_curFldName) break
1607	}
1608	GenerateContourList
1609	SendCmd [list contour3d contourlist $_contourList(values)]
1610	SendCmd "dataset maprange explicit $vmin $vmax $_curFldName"
1611	DrawLegend
1612	}
1613	"-xcutplanevisible" - "-ycutplanevisible" - "-zcutplanevisible" {
1614	set _changed($what) 1
1615	set axis [string tolower [string range $what 1 1]]
1616	set bool $_settings($what)
1617	if { $bool } {
1618	$itk_component(${axis}position) configure -state normal \
1619	-troughcolor white
1620	} else {
1621	$itk_component(${axis}position) configure -state disabled \
1622	-troughcolor grey82
1623	}
1624	SendCmd "cutplane axis $axis $bool"
1625	}
1626	"-xcutplaneposition" - "-ycutplaneposition" - "-zcutplaneposition" {
1627	set _changed($what) 1
1628	set axis [string tolower [string range $what 1 1]]
1629	set pos [expr $_settings($what) * 0.01]
1630	SendCmd "cutplane slice ${axis} ${pos}"
1631	set _cutplanePending 0
1632	}
1633	"-xgrid" - "-ygrid" - "-zgrid" {
1634	set axis [string tolower [string range $what 1 1]]
1635	set bool $_settings($what)
1636	SendCmd "axis grid $axis $bool"
1637	}
1638	default {
1639	error "don't know how to fix $what"
1640	}
1641	}
1642	}
1643
1644	#
1645	# RequestLegend --
1646	#
1647	# Request a new legend from the server. The size of the legend
1648	# is determined from the height of the canvas.
1649	#
1650	# This should be called when
1651	# 1. A new current colormap is set.
1652	# 2. Window is resized.
1653	# 3. The limits of the data have changed. (Just need a redraw).
1654	# 4. Number of isolines have changed. (Just need a redraw).
1655	# 5. Legend becomes visible (Just need a redraw).
1656	#
1657	itcl::body Rappture::VtkIsosurfaceViewer::RequestLegend {} {
1658	set _legendPending 0
1659	if { ![info exists _fields($_curFldName)] } {
1660	return
1661	}
1662	set fname $_curFldName
1663	set font "Arial 8"
1664	set lineht [font metrics $font -linespace]
1665	set w 12
1666	set h [expr {$_height - 2 * ($lineht + 2)}]
1667	if { $h < 1 } {
1668	return
1669	}
1670	if { [string match "component*" $fname] } {
1671	set title ""
1672	} else {
1673	if { [info exists _fields($fname)] } {
1674	foreach { title units } $_fields($fname) break
1675	if { $units != "" } {
1676	set title [format "%s (%s)" $title $units]
1677	}
1678	} else {
1679	set title $fname
1680	}
1681	}
1682	# If there's a title too, subtract one more line
1683	if { $title != "" } {
1684	incr h -$lineht
1685	}
1686	# Set the legend on the first isosurface dataset.
1687	if { $_currentColormap != "" } {
1688	set cmap $_currentColormap
1689	if { ![info exists _colormaps($cmap)] } {
1690	BuildColormap $cmap
1691	set _colormaps($cmap) 1
1692	}
1693	#SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1694	SendCmd "legend2 $cmap $w $h"
1695	}
1696	}
1697
1698	# ----------------------------------------------------------------------
1699	# CONFIGURATION OPTION: -plotbackground
1700	# ----------------------------------------------------------------------
1701	itcl::configbody Rappture::VtkIsosurfaceViewer::plotbackground {
1702	if { [isconnected] } {
1703	set rgb [Color2RGB $itk_option(-plotbackground)]
1704	SendCmd "screen bgcolor $rgb"
1705	}
1706	}
1707
1708	# ----------------------------------------------------------------------
1709	# CONFIGURATION OPTION: -plotforeground
1710	# ----------------------------------------------------------------------
1711	itcl::configbody Rappture::VtkIsosurfaceViewer::plotforeground {
1712	if { [isconnected] } {
1713	set rgb [Color2RGB $itk_option(-plotforeground)]
1714	SendCmd "axis color all $rgb"
1715	SendCmd "outline color $rgb"
1716	SendCmd "cutplane color $rgb"
1717	}
1718	}
1719
1720	itcl::body Rappture::VtkIsosurfaceViewer::BuildIsosurfaceTab {} {
1721
1722	set fg [option get $itk_component(hull) font Font]
1723	#set bfg [option get $itk_component(hull) boldFont Font]
1724
1725	set inner [$itk_component(main) insert end \
1726	-title "Isosurface Settings" \
1727	-icon [Rappture::icon volume-on]]
1728	$inner configure -borderwidth 4
1729
1730	checkbutton $inner.contour \
1731	-text "Isosurfaces" \
1732	-variable [itcl::scope _settings(-isosurfacevisible)] \
1733	-command [itcl::code $this AdjustSetting -isosurfacevisible] \
1734	-font "Arial 9"
1735
1736	checkbutton $inner.wireframe \
1737	-text "Wireframe" \
1738	-variable [itcl::scope _settings(-isosurfacewireframe)] \
1739	-command [itcl::code $this AdjustSetting -isosurfacewireframe] \
1740	-font "Arial 9"
1741
1742	checkbutton $inner.lighting \
1743	-text "Enable Lighting" \
1744	-variable [itcl::scope _settings(-isosurfacelighting)] \
1745	-command [itcl::code $this AdjustSetting -isosurfacelighting] \
1746	-font "Arial 9"
1747
1748	checkbutton $inner.edges \
1749	-text "Edges" \
1750	-variable [itcl::scope _settings(-isosurfaceedges)] \
1751	-command [itcl::code $this AdjustSetting -isosurfaceedges] \
1752	-font "Arial 9"
1753
1754	checkbutton $inner.outline \
1755	-text "Outline" \
1756	-variable [itcl::scope _settings(-outline)] \
1757	-command [itcl::code $this AdjustSetting -outline] \
1758	-font "Arial 9"
1759
1760	checkbutton $inner.legend \
1761	-text "Legend" \
1762	-variable [itcl::scope _settings(-legendvisible)] \
1763	-command [itcl::code $this AdjustSetting -legendvisible] \
1764	-font "Arial 9"
1765
1766	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1767	itk_component add isolineColor {
1768	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1769	}
1770	$inner.linecolor choices insert end \
1771	"black" "black" \
1772	"blue" "blue" \
1773	"cyan" "cyan" \
1774	"green" "green" \
1775	"grey" "grey" \
1776	"magenta" "magenta" \
1777	"orange" "orange" \
1778	"red" "red" \
1779	"white" "white" \
1780	"none" "none"
1781
1782	$itk_component(isolineColor) value "white"
1783	bind $inner.linecolor <<Value>> \
1784	[itcl::code $this AdjustSetting -isolinecolor]
1785
1786	label $inner.background_l -text "Background" -font "Arial 9"
1787	itk_component add background {
1788	Rappture::Combobox $inner.background -width 10 -editable 0
1789	}
1790	$inner.background choices insert end \
1791	"black" "black" \
1792	"white" "white" \
1793	"grey" "grey"
1794
1795	$itk_component(background) value $_settings(-background)
1796	bind $inner.background <<Value>> \
1797	[itcl::code $this AdjustSetting -background]
1798
1799	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1800	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1801	-variable [itcl::scope _widget(-isosurfaceopacity)] \
1802	-width 10 \
1803	-showvalue off \
1804	-command [itcl::code $this AdjustSetting -isosurfaceopacity]
1805	$inner.opacity set [expr $_settings(-isosurfaceopacity) * 100.0]
1806
1807	itk_component add field_l {
1808	label $inner.field_l -text "Field" -font "Arial 9"
1809	} {
1810	ignore -font
1811	}
1812	itk_component add field {
1813	Rappture::Combobox $inner.field -width 10 -editable 0
1814	}
1815	bind $inner.field <<Value>> \
1816	[itcl::code $this AdjustSetting -field]
1817
1818	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1819	itk_component add colormap {
1820	Rappture::Combobox $inner.colormap -width 10 -editable 0
1821	}
1822	$inner.colormap choices insert end [GetColormapList]
1823
1824	$itk_component(colormap) value "BCGYR"
1825	bind $inner.colormap <<Value>> \
1826	[itcl::code $this AdjustSetting -colormap]
1827
1828	label $inner.numcontours_l -text "Number of Isosurfaces" -font "Arial 9"
1829	itk_component add numcontours {
1830	Rappture::Spinint $inner.numcontours \
1831	-min 0 -max 50 -font "arial 9"
1832	}
1833	$itk_component(numcontours) value $_settings(-numcontours)
1834	bind $itk_component(numcontours) <<Value>> \
1835	[itcl::code $this AdjustSetting -numcontours]
1836
1837
1838	# add widgets for setting a custom range on the legend
1839
1840	itk_component add crange {
1841	checkbutton $inner.crange \
1842	-text "Use Custom Range:" \
1843	-variable [itcl::scope _settings(-customrange)] \
1844	-command [itcl::code $this ToggleCustomRange] \
1845	-font "Arial 9"
1846	}
1847
1848	itk_component add l_min {
1849	label $inner.l_min -text "Min" -font "Arial 9"
1850	}
1851	itk_component add min {
1852	Rappture::Gauge $inner.min -font "Arial 9" \
1853	-validatecommand [itcl::code $this LegendRangeValidate "" vmin]
1854	}
1855	bind $itk_component(min) <<Value>> \
1856	[itcl::code $this AdjustSetting -range]
1857
1858	itk_component add l_max {
1859	label $inner.l_max -text "Max" -font "Arial 9"
1860	}
1861	itk_component add max {
1862	Rappture::Gauge $inner.max -font "Arial 9" \
1863	-validatecommand [itcl::code $this LegendRangeValidate "" vmax]
1864	}
1865	bind $itk_component(max) <<Value>> \
1866	[itcl::code $this AdjustSetting -range]
1867
1868	$itk_component(min) configure -state disabled
1869	$itk_component(max) configure -state disabled
1870
1871
1872	blt::table $inner \
1873	0,0 $inner.field_l -anchor w -pady 2 \
1874	0,1 $inner.field -anchor w -pady 2 -fill x \
1875	1,0 $inner.colormap_l -anchor w -pady 2 \
1876	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1877	2,0 $inner.linecolor_l -anchor w -pady 2 \
1878	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1879	3,0 $inner.background_l -anchor w -pady 2 \
1880	3,1 $inner.background -anchor w -pady 2 -fill x \
1881	4,0 $inner.numcontours_l -anchor w -pady 2 \
1882	4,1 $inner.numcontours -anchor w -pady 2 \
1883	5,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1884	6,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1885	7,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1886	8,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1887	9,0 $inner.legend -anchor w -pady 2 \
1888	10,0 $inner.opacity_l -anchor w -pady 2 \
1889	10,1 $inner.opacity -fill x -pady 2 -fill x \
1890	11,0 $inner.crange -anchor w -pady 2 -cspan 2 \
1891	12,0 $inner.l_min -anchor w -pady 2 \
1892	12,1 $inner.min -anchor w -pady 2 -fill x \
1893	13,0 $inner.l_max -anchor w -pady 2 \
1894	13,1 $inner.max -anchor w -pady 2 -fill x \
1895
1896	blt::table configure $inner r* c* -resize none
1897	blt::table configure $inner r14 c1 -resize expand
1898	}
1899
1900	itcl::body Rappture::VtkIsosurfaceViewer::BuildAxisTab {} {
1901
1902	set fg [option get $itk_component(hull) font Font]
1903	#set bfg [option get $itk_component(hull) boldFont Font]
1904
1905	set inner [$itk_component(main) insert end \
1906	-title "Axis Settings" \
1907	-icon [Rappture::icon axis2]]
1908	$inner configure -borderwidth 4
1909
1910	checkbutton $inner.visible \
1911	-text "Axes" \
1912	-variable [itcl::scope _settings(-axesvisible)] \
1913	-command [itcl::code $this AdjustSetting -axesvisible] \
1914	-font "Arial 9"
1915
1916	checkbutton $inner.labels \
1917	-text "Axis Labels" \
1918	-variable [itcl::scope _settings(-axislabels)] \
1919	-command [itcl::code $this AdjustSetting -axislabels] \
1920	-font "Arial 9"
1921	label $inner.grid_l -text "Grid" -font "Arial 9"
1922	checkbutton $inner.xgrid \
1923	-text "X" \
1924	-variable [itcl::scope _settings(-xgrid)] \
1925	-command [itcl::code $this AdjustSetting -xgrid] \
1926	-font "Arial 9"
1927	checkbutton $inner.ygrid \
1928	-text "Y" \
1929	-variable [itcl::scope _settings(-ygrid)] \
1930	-command [itcl::code $this AdjustSetting -ygrid] \
1931	-font "Arial 9"
1932	checkbutton $inner.zgrid \
1933	-text "Z" \
1934	-variable [itcl::scope _settings(-zgrid)] \
1935	-command [itcl::code $this AdjustSetting -zgrid] \
1936	-font "Arial 9"
1937	checkbutton $inner.minorticks \
1938	-text "Minor Ticks" \
1939	-variable [itcl::scope _settings(-axisminorticks)] \
1940	-command [itcl::code $this AdjustSetting -axisminorticks] \
1941	-font "Arial 9"
1942
1943	label $inner.mode_l -text "Mode" -font "Arial 9"
1944
1945	itk_component add axisMode {
1946	Rappture::Combobox $inner.mode -width 10 -editable 0
1947	}
1948	$inner.mode choices insert end \
1949	"static_triad" "static" \
1950	"closest_triad" "closest" \
1951	"furthest_triad" "farthest" \
1952	"outer_edges" "outer"
1953	$itk_component(axisMode) value $_settings(-axismode)
1954	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1955
1956	blt::table $inner \
1957	0,0 $inner.visible -anchor w -cspan 4 \
1958	1,0 $inner.labels -anchor w -cspan 4 \
1959	2,0 $inner.minorticks -anchor w -cspan 4 \
1960	4,0 $inner.grid_l -anchor w \
1961	4,1 $inner.xgrid -anchor w \
1962	4,2 $inner.ygrid -anchor w \
1963	4,3 $inner.zgrid -anchor w \
1964	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1965	5,1 $inner.mode -fill x -cspan 3
1966
1967	blt::table configure $inner r* c* -resize none
1968	blt::table configure $inner r7 c6 -resize expand
1969	blt::table configure $inner r3 -height 0.125i
1970	}
1971
1972
1973	itcl::body Rappture::VtkIsosurfaceViewer::BuildCameraTab {} {
1974	set inner [$itk_component(main) insert end \
1975	-title "Camera Settings" \
1976	-icon [Rappture::icon camera]]
1977	$inner configure -borderwidth 4
1978
1979	label $inner.view_l -text "view" -font "Arial 9"
1980	set f [frame $inner.view]
1981	foreach side { front back left right top bottom } {
1982	button $f.$side -image [Rappture::icon view$side] \
1983	-command [itcl::code $this SetOrientation $side]
1984	Rappture::Tooltip::for $f.$side "Change the view to $side"
1985	pack $f.$side -side left
1986	}
1987
1988	blt::table $inner \
1989	0,0 $inner.view_l -anchor e -pady 2 \
1990	0,1 $inner.view -anchor w -pady 2
1991	blt::table configure $inner r0 -resize none
1992
1993	set labels { qx qy qz qw xpan ypan zoom }
1994	set row 1
1995	foreach tag $labels {
1996	label $inner.${tag}label -text $tag -font "Arial 9"
1997	entry $inner.${tag} -font "Arial 9" -bg white \
1998	-textvariable [itcl::scope _view(-$tag)]
1999	bind $inner.${tag} <Return> \
2000	[itcl::code $this camera set -${tag}]
2001	bind $inner.${tag} <KP_Enter> \
2002	[itcl::code $this camera set -${tag}]
2003	blt::table $inner \
2004	$row,0 $inner.${tag}label -anchor e -pady 2 \
2005	$row,1 $inner.${tag} -anchor w -pady 2
2006	blt::table configure $inner r$row -resize none
2007	incr row
2008	}
2009	checkbutton $inner.ortho \
2010	-text "Orthographic Projection" \
2011	-variable [itcl::scope _view(-ortho)] \
2012	-command [itcl::code $this AdjustSetting -ortho] \
2013	-font "Arial 9"
2014	blt::table $inner \
2015	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2016	blt::table configure $inner r$row -resize none
2017	incr row
2018
2019	blt::table configure $inner c* -resize none
2020	blt::table configure $inner c2 -resize expand
2021	blt::table configure $inner r$row -resize expand
2022	}
2023
2024	itcl::body Rappture::VtkIsosurfaceViewer::BuildCutplaneTab {} {
2025
2026	set fg [option get $itk_component(hull) font Font]
2027
2028	set inner [$itk_component(main) insert end \
2029	-title "Cutplane Settings" \
2030	-icon [Rappture::icon cutbutton]]
2031
2032	$inner configure -borderwidth 4
2033
2034	checkbutton $inner.visible \
2035	-text "Cutplanes" \
2036	-variable [itcl::scope _settings(-cutplanesvisible)] \
2037	-command [itcl::code $this AdjustSetting -cutplanesvisible] \
2038	-font "Arial 9"
2039
2040	checkbutton $inner.wireframe \
2041	-text "Wireframe" \
2042	-variable [itcl::scope _settings(-cutplanewireframe)] \
2043	-command [itcl::code $this AdjustSetting -cutplanewireframe] \
2044	-font "Arial 9"
2045
2046	checkbutton $inner.lighting \
2047	-text "Enable Lighting" \
2048	-variable [itcl::scope _settings(-cutplanelighting)] \
2049	-command [itcl::code $this AdjustSetting -cutplanelighting] \
2050	-font "Arial 9"
2051
2052	checkbutton $inner.edges \
2053	-text "Edges" \
2054	-variable [itcl::scope _settings(-cutplaneedges)] \
2055	-command [itcl::code $this AdjustSetting -cutplaneedges] \
2056	-font "Arial 9"
2057
2058	checkbutton $inner.preinterp \
2059	-text "Interpolate Scalars" \
2060	-variable [itcl::scope _settings(-cutplanepreinterp)] \
2061	-command [itcl::code $this AdjustSetting -cutplanepreinterp] \
2062	-font "Arial 9"
2063
2064	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2065	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2066	-variable [itcl::scope _widget(-cutplaneopacity)] \
2067	-width 10 \
2068	-showvalue off \
2069	-command [itcl::code $this AdjustSetting -cutplaneopacity]
2070	$inner.opacity set [expr $_settings(-cutplaneopacity) * 100.0]
2071
2072	# X-value slicer...
2073	itk_component add xbutton {
2074	Rappture::PushButton $inner.xbutton \
2075	-onimage [Rappture::icon x-cutplane-red] \
2076	-offimage [Rappture::icon x-cutplane-red] \
2077	-command [itcl::code $this AdjustSetting -xcutplanevisible] \
2078	-variable [itcl::scope _settings(-xcutplanevisible)] \
2079	}
2080	Rappture::Tooltip::for $itk_component(xbutton) \
2081	"Toggle the X-axis cutplane on/off"
2082	$itk_component(xbutton) select
2083	itk_component add xposition {
2084	::scale $inner.xval -from 100 -to 0 \
2085	-width 10 -orient vertical -showvalue 1 \
2086	-borderwidth 1 -highlightthickness 0 \
2087	-command [itcl::code $this EventuallySetCutplane x] \
2088	-variable [itcl::scope _settings(-xcutplaneposition)] \
2089	-foreground red2 -font "Arial 9 bold"
2090	} {
2091	usual
2092	ignore -borderwidth -highlightthickness -foreground -font -background
2093	}
2094	# Set the default cutplane value before disabling the scale.
2095	$itk_component(xposition) set 50
2096	$itk_component(xposition) configure -state disabled
2097	Rappture::Tooltip::for $itk_component(xposition) \
2098	"@[itcl::code $this Slice tooltip x]"
2099
2100	# Y-value slicer...
2101	itk_component add ybutton {
2102	Rappture::PushButton $inner.ybutton \
2103	-onimage [Rappture::icon y-cutplane-green] \
2104	-offimage [Rappture::icon y-cutplane-green] \
2105	-command [itcl::code $this AdjustSetting -ycutplanevisible] \
2106	-variable [itcl::scope _settings(-ycutplanevisible)] \
2107	}
2108	Rappture::Tooltip::for $itk_component(ybutton) \
2109	"Toggle the Y-axis cutplane on/off"
2110	$itk_component(ybutton) select
2111
2112	itk_component add yposition {
2113	::scale $inner.yval -from 100 -to 0 \
2114	-width 10 -orient vertical -showvalue 1 \
2115	-borderwidth 1 -highlightthickness 0 \
2116	-command [itcl::code $this EventuallySetCutplane y] \
2117	-variable [itcl::scope _settings(-ycutplaneposition)] \
2118	-foreground green3 -font "Arial 9 bold"
2119	} {
2120	usual
2121	ignore -borderwidth -highlightthickness -foreground -font
2122	}
2123	Rappture::Tooltip::for $itk_component(yposition) \
2124	"@[itcl::code $this Slice tooltip y]"
2125	# Set the default cutplane value before disabling the scale.
2126	$itk_component(yposition) set 50
2127	$itk_component(yposition) configure -state disabled
2128
2129	# Z-value slicer...
2130	itk_component add zbutton {
2131	Rappture::PushButton $inner.zbutton \
2132	-onimage [Rappture::icon z-cutplane-blue] \
2133	-offimage [Rappture::icon z-cutplane-blue] \
2134	-command [itcl::code $this AdjustSetting -zcutplanevisible] \
2135	-variable [itcl::scope _settings(-zcutplanevisible)] \
2136	} {
2137	usual
2138	ignore -foreground
2139	}
2140	Rappture::Tooltip::for $itk_component(zbutton) \
2141	"Toggle the Z-axis cutplane on/off"
2142	$itk_component(zbutton) select
2143
2144	itk_component add zposition {
2145	::scale $inner.zval -from 100 -to 0 \
2146	-width 10 -orient vertical -showvalue 1 \
2147	-borderwidth 1 -highlightthickness 0 \
2148	-command [itcl::code $this EventuallySetCutplane z] \
2149	-variable [itcl::scope _settings(-zcutplaneposition)] \
2150	-foreground blue3 -font "Arial 9 bold"
2151	} {
2152	usual
2153	ignore -borderwidth -highlightthickness -foreground -font
2154	}
2155	$itk_component(zposition) set 50
2156	$itk_component(zposition) configure -state disabled
2157	Rappture::Tooltip::for $itk_component(zposition) \
2158	"@[itcl::code $this Slice tooltip z]"
2159
2160	blt::table $inner \
2161	0,0 $inner.visible -anchor w -pady 2 -cspan 3 \
2162	1,0 $inner.lighting -anchor w -pady 2 -cspan 3 \
2163	2,0 $inner.wireframe -anchor w -pady 2 -cspan 3 \
2164	3,0 $inner.edges -anchor w -pady 2 -cspan 3 \
2165	4,0 $inner.preinterp -anchor w -pady 2 -cspan 3 \
2166	5,0 $inner.opacity_l -anchor w -pady 2 -cspan 1 \
2167	5,1 $inner.opacity -fill x -pady 2 -cspan 3 \
2168	6,0 $inner.xbutton -anchor w -padx 2 -pady 2 \
2169	7,0 $inner.ybutton -anchor w -padx 2 -pady 2 \
2170	8,0 $inner.zbutton -anchor w -padx 2 -pady 2 \
2171	6,1 $inner.xval -fill y -rspan 4 \
2172	6,2 $inner.yval -fill y -rspan 4 \
2173	6,3 $inner.zval -fill y -rspan 4 \
2174
2175
2176	blt::table configure $inner r* c* -resize none
2177	blt::table configure $inner r9 c4 -resize expand
2178	}
2179
2180	#
2181	# camera --
2182	#
2183	itcl::body Rappture::VtkIsosurfaceViewer::camera {option args} {
2184	switch -- $option {
2185	"show" {
2186	puts [array get _view]
2187	}
2188	"set" {
2189	set what [lindex $args 0]
2190	set x $_view($what)
2191	set code [catch { string is double $x } result]
2192	if { $code != 0 \|\| !$result } {
2193	return
2194	}
2195	switch -- $what {
2196	"-ortho" {
2197	if {$_view($what)} {
2198	SendCmd "camera mode ortho"
2199	} else {
2200	SendCmd "camera mode persp"
2201	}
2202	}
2203	"-xpan" - "-ypan" {
2204	PanCamera
2205	}
2206	"-qx" - "-qy" - "-qz" - "-qw" {
2207	set q [ViewToQuaternion]
2208	$_arcball quaternion $q
2209	EventuallyRotate $q
2210	}
2211	"-zoom" {
2212	SendCmd "camera zoom $_view($what)"
2213	}
2214	}
2215	}
2216	}
2217	}
2218
2219	itcl::body Rappture::VtkIsosurfaceViewer::GetVtkData { args } {
2220	set bytes ""
2221	foreach dataobj [get] {
2222	foreach cname [$dataobj components] {
2223	set tag $dataobj-$cname
2224	set contents [$dataobj vtkdata $cname]
2225	append bytes "$contents\n"
2226	}
2227	}
2228	return [list .vtk $bytes]
2229	}
2230
2231	itcl::body Rappture::VtkIsosurfaceViewer::GetImage { args } {
2232	if { [image width $_image(download)] > 0 &&
2233	[image height $_image(download)] > 0 } {
2234	set bytes [$_image(download) data -format "jpeg -quality 100"]
2235	set bytes [Rappture::encoding::decode -as b64 $bytes]
2236	return [list .jpg $bytes]
2237	}
2238	return ""
2239	}
2240
2241	itcl::body Rappture::VtkIsosurfaceViewer::BuildDownloadPopup { popup command } {
2242	Rappture::Balloon $popup \
2243	-title "[Rappture::filexfer::label downloadWord] as..."
2244	set inner [$popup component inner]
2245	label $inner.summary -text "" -anchor w
2246	radiobutton $inner.vtk_button -text "VTK data file" \
2247	-variable [itcl::scope _downloadPopup(format)] \
2248	-font "Arial 9 " \
2249	-value vtk
2250	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2251	radiobutton $inner.image_button -text "Image File" \
2252	-variable [itcl::scope _downloadPopup(format)] \
2253	-font "Arial 9 " \
2254	-value image
2255	Rappture::Tooltip::for $inner.image_button \
2256	"Save as digital image."
2257
2258	button $inner.ok -text "Save" \
2259	-highlightthickness 0 -pady 2 -padx 3 \
2260	-command $command \
2261	-compound left \
2262	-image [Rappture::icon download]
2263
2264	button $inner.cancel -text "Cancel" \
2265	-highlightthickness 0 -pady 2 -padx 3 \
2266	-command [list $popup deactivate] \
2267	-compound left \
2268	-image [Rappture::icon cancel]
2269
2270	blt::table $inner \
2271	0,0 $inner.summary -cspan 2 \
2272	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2273	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2274	4,1 $inner.cancel -width .9i -fill y \
2275	4,0 $inner.ok -padx 2 -width .9i -fill y
2276	blt::table configure $inner r3 -height 4
2277	blt::table configure $inner r4 -pady 4
2278	raise $inner.image_button
2279	$inner.vtk_button invoke
2280	return $inner
2281	}
2282
2283	itcl::body Rappture::VtkIsosurfaceViewer::SetObjectStyle { dataobj comp } {
2284	# Parse style string.
2285	set tag $dataobj-$comp
2286	array set style {
2287	-color BCGYR
2288	-cutplaneedges 0
2289	-cutplanelighting 1
2290	-cutplaneopacity 1.0
2291	-cutplanepreinterp 1
2292	-cutplanesvisible 0
2293	-cutplanewireframe 0
2294	-edgecolor black
2295	-edges 0
2296	-isosurfacevisible 1
2297	-levels 10
2298	-lighting 1
2299	-linewidth 1.0
2300	-opacity 0.6
2301	-outline 0
2302	-wireframe 0
2303	-xcutplaneposition 50
2304	-xcutplanevisible 1
2305	-ycutplaneposition 50
2306	-ycutplanevisible 1
2307	-zcutplaneposition 50
2308	-zcutplanevisible 1
2309	}
2310	array set style [$dataobj style $comp]
2311	if { $dataobj != $_first \|\| $style(-levels) == 1 } {
2312	set style(-opacity) 1.0
2313	}
2314
2315	# This is too complicated. We want to set the colormap, number of
2316	# isolines and opacity for the dataset. They can be the default values,
2317	# the style hints loaded with the dataset, or set by user controls. As
2318	# datasets get loaded, they first use the defaults that are overidden
2319	# by the style hints. If the user changes the global controls, then that
2320	# overrides everything else. I don't know what it means when global
2321	# controls are specified as style hints by each dataset. It complicates
2322	# the code to handle aberrant cases.
2323
2324	if { $_changed(-isosurfaceedges) } {
2325	set style(-edges) $_settings(-isosurfaceedges)
2326	}
2327	if { $_changed(-isosurfacelighting) } {
2328	set style(-lighting) $_settings(-isosurfacelighting)
2329	}
2330	if { $_changed(-isosurfaceopacity) } {
2331	set style(-opacity) $_settings(-isosurfaceopacity)
2332	}
2333	if { $_changed(-isosurfacewireframe) } {
2334	set style(-wireframe) $_settings(-isosurfacewireframe)
2335	}
2336	if { $_changed(-numcontours) } {
2337	set style(-levels) $_settings(-numcontours)
2338	}
2339	if { $_changed(-colormap) } {
2340	set style(-color) $_settings(-colormap)
2341	}
2342	if { $_currentColormap == "" } {
2343	SetCurrentColormap $style(-color)
2344	$itk_component(colormap) value $style(-color)
2345	}
2346	if { $_contourList(numLevels) != $style(-levels) } {
2347	if { [llength $style(-levels)] > 1 } {
2348	set _contourList(reqValues) [lsort -real $style(-levels)]
2349	} else {
2350	set _settings(-numcontours) $style(-levels)
2351	$itk_component(numcontours) value $style(-levels)
2352	set _contourList(numLevels) $style(-levels)
2353	}
2354	EventuallyChangeContourLevels
2355	}
2356	foreach setting {-outline -isosurfacevisible -cutplanesvisible \
2357	-xcutplanevisible -ycutplanevisible -zcutplanevisible \
2358	-xcutplaneposition -ycutplaneposition -zcutplaneposition \
2359	-cutplaneedges -cutplanelighting -cutplaneopacity \
2360	-cutplanepreinterp -cutplanewireframe} {
2361	if {$_changed($setting)} {
2362	# User-modified UI setting overrides style
2363	set style($setting) $_settings($setting)
2364	} else {
2365	# Set UI control to style setting (tool provided or default)
2366	set _settings($setting) $style($setting)
2367	}
2368	}
2369
2370	SendCmd "cutplane add $tag"
2371	SendCmd "cutplane color [Color2RGB $itk_option(-plotforeground)] $tag"
2372	foreach axis {x y z} {
2373	set pos [expr $style(-${axis}cutplaneposition) * 0.01]
2374	set visible $style(-${axis}cutplanevisible)
2375	SendCmd "cutplane slice $axis $pos $tag"
2376	SendCmd "cutplane axis $axis $visible $tag"
2377	}
2378	SendCmd "cutplane edges $style(-cutplaneedges) $tag"
2379	SendCmd "cutplane lighting $style(-cutplanelighting) $tag"
2380	SendCmd "cutplane opacity $style(-cutplaneopacity) $tag"
2381	SendCmd "cutplane preinterp $style(-cutplanepreinterp) $tag"
2382	SendCmd "cutplane wireframe $style(-cutplanewireframe) $tag"
2383	SendCmd "cutplane visible $style(-cutplanesvisible) $tag"
2384
2385	SendCmd "outline add $tag"
2386	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2387	SendCmd "outline visible $style(-outline) $tag"
2388
2389	GenerateContourList
2390	SendCmd [list contour3d add contourlist $_contourList(values) $tag]
2391	SendCmd "contour3d visible $style(-isosurfacevisible) $tag"
2392	SendCmd "contour3d edges $style(-edges) $tag"
2393	set _settings(-isosurfaceedges) $style(-edges)
2394	#SendCmd "contour3d color [Color2RGB $style(-color)] $tag"
2395	SendCmd "contour3d lighting $style(-lighting) $tag"
2396	set _settings(-isosurfacelighting) $style(-lighting)
2397	SendCmd "contour3d linecolor [Color2RGB $style(-edgecolor)] $tag"
2398	SendCmd "contour3d linewidth $style(-linewidth) $tag"
2399	SendCmd "contour3d opacity $style(-opacity) $tag"
2400	set _settings(-isosurfaceopacity) $style(-opacity)
2401	SetCurrentColormap $style(-color)
2402	SendCmd "contour3d wireframe $style(-wireframe) $tag"
2403	set _settings(-isosurfacewireframe) $style(-wireframe)
2404	}
2405
2406	itcl::body Rappture::VtkIsosurfaceViewer::IsValidObject { dataobj } {
2407	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2408	return 0
2409	}
2410	return 1
2411	}
2412
2413	#
2414	# EnterLegend --
2415	#
2416	itcl::body Rappture::VtkIsosurfaceViewer::EnterLegend { x y } {
2417	SetLegendTip $x $y
2418	}
2419
2420	#
2421	# MotionLegend --
2422	#
2423	itcl::body Rappture::VtkIsosurfaceViewer::MotionLegend { x y } {
2424	Rappture::Tooltip::tooltip cancel
2425	set c $itk_component(view)
2426	set cw [winfo width $c]
2427	set ch [winfo height $c]
2428	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2429	SetLegendTip $x $y
2430	}
2431	}
2432
2433	#
2434	# LeaveLegend --
2435	#
2436	itcl::body Rappture::VtkIsosurfaceViewer::LeaveLegend { } {
2437	Rappture::Tooltip::tooltip cancel
2438	.rappturetooltip configure -icon ""
2439	}
2440
2441	# ----------------------------------------------------------------------
2442	# USAGE: LegendB1Motion press <x> <y>
2443	# USAGE: LegendB1Motion motion <x> <y>
2444	# USAGE: LegendB1Motion release <x> <y>
2445	#
2446	# Manage actions for Button 1 presses that happen over the legend.
2447	# Pressing mouse Button 1 on the legend sends a command to the
2448	# visualization server to show a specific isosurface.
2449	# ----------------------------------------------------------------------
2450	itcl::body Rappture::VtkIsosurfaceViewer::LegendB1Motion { status x y } {
2451
2452	switch -- $status {
2453	"press" {
2454	DisableMouseRotationBindings
2455	LegendProbeSingleContour $x $y
2456	}
2457	"motion" {
2458	DisableMouseRotationBindings
2459	LegendProbeSingleContour $x $y
2460	}
2461	"release" {
2462	AdjustSetting -range
2463	SetupMouseRotationBindings
2464	}
2465	default {
2466	error "bad option \"$option\": should be one of press, motion, release."
2467	}
2468	}
2469	}
2470
2471	# ----------------------------------------------------------------------
2472	# USAGE: LegendPointToValue <x> <y>
2473	#
2474	# Convert an x,y point on the legend to a numeric isosurface value.
2475	# ----------------------------------------------------------------------
2476	itcl::body Rappture::VtkIsosurfaceViewer::LegendPointToValue { x y } {
2477
2478	set fname $_curFldName
2479
2480	set font "Arial 8"
2481	set lineht [font metrics $font -linespace]
2482
2483	set ih [image height $_image(legend)]
2484	set iy [expr $y - ($lineht + 2)]
2485
2486	# Compute the value of the point
2487	if { [info exists _limits($fname)] } {
2488	if { $_settings(-customrange) } {
2489	set vmin [$itk_component(min) value]
2490	set vmax [$itk_component(max) value]
2491	} else {
2492	foreach { vmin vmax } $_limits($fname) break
2493	}
2494	set t [expr 1.0 - (double($iy) / double($ih-1))]
2495	set value [expr $t * ($vmax - $vmin) + $vmin]
2496	} else {
2497	set value 0.0
2498	}
2499	return $value
2500	}
2501
2502	# ----------------------------------------------------------------------
2503	# USAGE: LegendProbeSingleContour <x> <y>
2504	#
2505	# Calculate the isosurface value for the x,y point and send a commands
2506	# to the visualization server to show that isosurface.
2507	# ----------------------------------------------------------------------
2508	itcl::body Rappture::VtkIsosurfaceViewer::LegendProbeSingleContour { x y } {
2509
2510	set value [LegendPointToValue $x $y]
2511	SendCmd [list contour3d contourlist $value]
2512	}
2513
2514	#
2515	# SetLegendTip --
2516	#
2517	itcl::body Rappture::VtkIsosurfaceViewer::SetLegendTip { x y } {
2518	set fname $_curFldName
2519	set c $itk_component(view)
2520	set w [winfo width $c]
2521	set h [winfo height $c]
2522
2523	set font "Arial 8"
2524	set lineht [font metrics $font -linespace]
2525
2526	set ih [image height $_image(legend)]
2527	set iy [expr $y - ($lineht + 2)]
2528
2529	if { [string match "component*" $fname] } {
2530	set title ""
2531	} else {
2532	if { [info exists _fields($fname)] } {
2533	foreach { title units } $_fields($fname) break
2534	if { $units != "" } {
2535	set title [format "%s (%s)" $title $units]
2536	}
2537	} else {
2538	set title $fname
2539	}
2540	}
2541	# If there's a legend title, increase the offset by the line height.
2542	if { $title != "" } {
2543	incr iy -$lineht
2544	}
2545	# Make a swatch of the selected color
2546	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2547	return
2548	}
2549	if { ![info exists _image(swatch)] } {
2550	set _image(swatch) [image create photo -width 24 -height 24]
2551	}
2552	set color [eval format "\#%02x%02x%02x" $pixel]
2553	$_image(swatch) put black -to 0 0 23 23
2554	$_image(swatch) put $color -to 1 1 22 22
2555	.rappturetooltip configure -icon $_image(swatch)
2556
2557	# Compute the value of the point
2558	set value [LegendPointToValue $x $y]
2559
2560	# Setup the location of the tooltip
2561	set tx [expr $x + 15]
2562	set ty [expr $y - 5]
2563
2564	# Setup the text for the tooltip
2565	if { [info exists _isolines($y)] } {
2566	Rappture::Tooltip::text $c [format "$title %g (isosurface)" $_isolines($y)]
2567	} else {
2568	Rappture::Tooltip::text $c [format "$title %g" $value]
2569	}
2570
2571	# Show the tooltip
2572	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2573	}
2574
2575	# ----------------------------------------------------------------------
2576	# USAGE: Slice move x\|y\|z <newval>
2577	#
2578	# Called automatically when the user drags the slider to move the
2579	# cut plane that slices 3D data. Gets the current value from the
2580	# slider and moves the cut plane to the appropriate point in the
2581	# data set.
2582	# ----------------------------------------------------------------------
2583	itcl::body Rappture::VtkIsosurfaceViewer::Slice {option args} {
2584	switch -- $option {
2585	"move" {
2586	set axis [lindex $args 0]
2587	set newval [lindex $args 1]
2588	if {[llength $args] != 2} {
2589	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2590	}
2591	set newpos [expr {0.01*$newval}]
2592	SendCmd "cutplane slice $axis $newpos"
2593	}
2594	"tooltip" {
2595	set axis [lindex $args 0]
2596	set val [$itk_component(${axis}position) get]
2597	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2598	}
2599	default {
2600	error "bad option \"$option\": should be axis, move, or tooltip"
2601	}
2602	}
2603	}
2604
2605	#
2606	# ReceiveLegend --
2607	#
2608	# Invoked automatically whenever the "legend" command comes in from
2609	# the rendering server. Indicates that binary image data with the
2610	# specified <size> will follow.
2611	#
2612	itcl::body Rappture::VtkIsosurfaceViewer::ReceiveLegend { colormap title min max size } {
2613	# puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2614	set _title $title
2615	regsub {\(mag\)} $title "" _title
2616	if { [IsConnected] } {
2617	set bytes [ReceiveBytes $size]
2618	if { ![info exists _image(legend)] } {
2619	set _image(legend) [image create photo]
2620	}
2621	$_image(legend) configure -data $bytes
2622	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2623	if { [catch {DrawLegend} errs] != 0 } {
2624	global errorInfo
2625	puts stderr "errs=$errs errorInfo=$errorInfo"
2626	}
2627	}
2628	}
2629
2630	#
2631	# DrawLegend --
2632	#
2633	# Draws the legend on the canvas on the right side of the plot area.
2634	#
2635	itcl::body Rappture::VtkIsosurfaceViewer::DrawLegend {} {
2636	set fname $_curFldName
2637	set c $itk_component(view)
2638	set w [winfo width $c]
2639	set h [winfo height $c]
2640	set font "Arial 8"
2641	set lineht [font metrics $font -linespace]
2642
2643	if { [string match "component*" $fname] } {
2644	set title ""
2645	} else {
2646	if { [info exists _fields($fname)] } {
2647	foreach { title units } $_fields($fname) break
2648	if { $units != "" } {
2649	set title [format "%s (%s)" $title $units]
2650	}
2651	} else {
2652	set title $fname
2653	}
2654	}
2655	set x [expr $w - 2]
2656	if { !$_settings(-legendvisible) } {
2657	$c delete legend
2658	return
2659	}
2660	if { [$c find withtag "legend"] == "" } {
2661	set y 2
2662	# If there's a legend title, create a text item for the title.
2663	$c create text $x $y \
2664	-anchor ne \
2665	-fill $itk_option(-plotforeground) -tags "title legend" \
2666	-font $font
2667	if { $title != "" } {
2668	incr y $lineht
2669	}
2670	$c create text $x $y \
2671	-anchor ne \
2672	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2673	-font $font
2674	incr y $lineht
2675	$c create image $x $y \
2676	-anchor ne \
2677	-image $_image(legend) -tags "colormap legend"
2678	$c create rectangle $x $y 1 1 \
2679	-fill "" -outline "" -tags "sensor legend"
2680	$c create text $x [expr {$h-2}] \
2681	-anchor se \
2682	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2683	-font $font
2684	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2685	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2686	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2687	# $c bind sensor <ButtonPress-1> [itcl::code $this LegendB1Motion press %x %y]
2688	# $c bind sensor <B1-Motion> [itcl::code $this LegendB1Motion motion %x %y]
2689	# $c bind sensor <ButtonRelease-1> [itcl::code $this LegendB1Motion release %x %y]
2690
2691	}
2692	$c delete isoline
2693	set x2 $x
2694	set iw [image width $_image(legend)]
2695	set ih [image height $_image(legend)]
2696	set x1 [expr $x2 - ($iw*12)/10]
2697	set color $_settings(-isolinecolor)
2698	# Draw the isolines on the legend.
2699	array unset _isolines
2700	if { $color != "none" && [info exists _limits($_curFldName)] &&
2701	$_settings(-numcontours) > 0 } {
2702
2703	if { $_settings(-customrange) } {
2704	set vmin [$itk_component(min) value]
2705	set vmax [$itk_component(max) value]
2706	} else {
2707	foreach { vmin vmax } $_limits($_curFldName) break
2708	}
2709	set range [expr double($vmax - $vmin)]
2710	if { $range <= 0.0 } {
2711	set range 1.0; # Min is greater or equal to max.
2712	}
2713	set tags "isoline legend"
2714	set offset [expr 2 + $lineht]
2715	if { $title != "" } {
2716	incr offset $lineht
2717	}
2718	foreach value $_contourList(values) {
2719	set norm [expr 1.0 - (($value - $vmin) / $range)]
2720	set y1 [expr int(round(($norm * $ih) + $offset))]
2721	for { set off 0 } { $off < 3 } { incr off } {
2722	set _isolines([expr $y1 + $off]) $value
2723	set _isolines([expr $y1 - $off]) $value
2724	}
2725	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2726	}
2727	}
2728
2729	$c bind title <ButtonPress> [itcl::code $this LegendTitleAction post]
2730	$c bind title <Enter> [itcl::code $this LegendTitleAction enter]
2731	$c bind title <Leave> [itcl::code $this LegendTitleAction leave]
2732	# Reset the item coordinates according the current size of the plot.
2733	$c itemconfigure title -text $title
2734	if { [info exists _limits($_curFldName)] } {
2735	if { $_settings(-customrange) } {
2736	set vmin [$itk_component(min) value]
2737	set vmax [$itk_component(max) value]
2738	} else {
2739	foreach { vmin vmax } $_limits($_curFldName) break
2740	}
2741	$c itemconfigure vmin -text [format %g $vmin]
2742	$c itemconfigure vmax -text [format %g $vmax]
2743	}
2744	set y 2
2745	# If there's a legend title, move the title to the correct position
2746	if { $title != "" } {
2747	$c itemconfigure title -text $title
2748	$c coords title $x $y
2749	incr y $lineht
2750	$c raise title
2751	}
2752	$c coords vmax $x $y
2753	incr y $lineht
2754	$c coords colormap $x $y
2755	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2756	$c raise sensor
2757	$c coords vmin $x [expr {$h - 2}]
2758
2759	$c bind vmin <ButtonPress> [itcl::code $this LegendRangeAction popup vmin]
2760	$c bind vmin <Enter> [itcl::code $this LegendRangeAction enter vmin]
2761	$c bind vmin <Leave> [itcl::code $this LegendRangeAction leave vmin]
2762
2763	$c bind vmax <ButtonPress> [itcl::code $this LegendRangeAction popup vmax]
2764	$c bind vmax <Enter> [itcl::code $this LegendRangeAction enter vmax]
2765	$c bind vmax <Leave> [itcl::code $this LegendRangeAction leave vmax]
2766	}
2767
2768	# ----------------------------------------------------------------------
2769	# USAGE: LegendTitleAction post
2770	# USAGE: LegendTitleAction enter
2771	# USAGE: LegendTitleAction leave
2772	# USAGE: LegendTitleAction save
2773	#
2774	# Used internally to handle the dropdown list for the fields menu combobox.
2775	# The post option is invoked when the field title is pressed to launch the
2776	# dropdown. The enter option is invoked when the user mouses over the field
2777	# title. The leave option is invoked when the user moves the mouse away
2778	# from the field title. The save option is invoked whenever there is a
2779	# selection from the list, to alert the visualization server.
2780	#
2781	# ----------------------------------------------------------------------
2782	itcl::body Rappture::VtkIsosurfaceViewer::LegendTitleAction {option} {
2783	set c $itk_component(view)
2784	switch -- $option {
2785	post {
2786	foreach { x1 y1 x2 y2 } [$c bbox title] break
2787	set cw [winfo width $itk_component(view)]
2788	set mw [winfo reqwidth $itk_component(fieldmenu)]
2789	set x1 [expr $cw - $mw]
2790	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2791	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2792	tk_popup $itk_component(fieldmenu) $x $y
2793	}
2794	enter {
2795	$c itemconfigure title -fill red
2796	}
2797	leave {
2798	$c itemconfigure title -fill $itk_option(-plotforeground)
2799	}
2800	save {
2801	$itk_component(field) value $_curFldLabel
2802	AdjustSetting -field
2803	}
2804	default {
2805	error "bad option \"$option\": should be post, enter, leave, save"
2806	}
2807	}
2808	}
2809
2810	# ----------------------------------------------------------------------
2811	# USAGE: LegendRangeValidate <widget> <which> <value>
2812	#
2813	# Used internally to validate a legend range min/max value.
2814	# Returns a boolean value telling if <value> was accepted (1) or rejected (0)
2815	# If the value is rejected, a tooltip/warning message is popped up
2816	# near the widget that asked for the validation, specified by <widget>
2817	#
2818	# <widget> is the widget where a tooltip/warning message should show up on
2819	# <which> is either "vmin" or "vmax".
2820	# <value> is the value to be validated.
2821	#
2822	# ----------------------------------------------------------------------
2823	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeValidate {widget which value} {
2824
2825	#check for a valid value
2826	if {[string is double $value] != 1} {
2827	set msg "should be valid number"
2828	if {$widget != ""} {
2829	Rappture::Tooltip::cue $widget $msg
2830	} else {
2831	# error "bad value \"$value\": $msg"
2832	error $msg
2833	}
2834	return 0
2835	}
2836
2837	switch -- $which {
2838	vmin {
2839	# check for min > max
2840	if {$value > [$itk_component(max) value]} {
2841	set msg "min > max, change max first"
2842	if {$widget != ""} {
2843	Rappture::Tooltip::cue $widget $msg
2844	} else {
2845	# error "bad value \"$value\": $msg"
2846	error $msg
2847	}
2848	return 0
2849	}
2850	}
2851	vmax {
2852	# check for max < min
2853	if {$value < [$itk_component(min) value]} {
2854	set msg "max < min, change min first"
2855	if {$widget != ""} {
2856	Rappture::Tooltip::cue $widget $msg
2857	} else {
2858	# error "bad value \"$value\": $msg"
2859	error $msg
2860	}
2861	return 0
2862	}
2863	}
2864	default {
2865	error "bad option \"$which\": should be vmin, vmax"
2866	}
2867	}
2868	}
2869
2870	itcl::body Rappture::VtkIsosurfaceViewer::MouseOver2Which {} {
2871	switch -- $_mouseOver {
2872	vmin {
2873	set which min
2874	}
2875	vmax {
2876	set which max
2877	}
2878	default {
2879	error "bad _mouseOver \"$_mouseOver\": should be vmin, vmax"
2880	}
2881	}
2882	return $which
2883	}
2884
2885	# ----------------------------------------------------------------------
2886	# USAGE: LegendRangeAction enter <which>
2887	# USAGE: LegendRangeAction leave <which>
2888	#
2889	# USAGE: LegendRangeAction popup <which>
2890	# USAGE: LegendRangeAction activate
2891	# USAGE: LegendRangeAction validate <value>
2892	# USAGE: LegendRangeAction apply <value>
2893	#
2894	# Used internally to handle the mouseover and popup entry for the field range
2895	# inputs. The enter option is invoked when the user moves the mouse over the
2896	# min or max field range. The leave option is invoked when the user moves the
2897	# mouse away from the min or max field range. The popup option is invoked when
2898	# the user click's on a field range. The popup option stores internally which
2899	# widget is requesting a popup ( in the _mouseOver variable) and calls the
2900	# activate command of the widget. The widget's activate command calls back to
2901	# this method to get the xywh dimensions of the popup editor. After the user
2902	# changes focus or sets the value in the editor, the editor calls this methods
2903	# validate and apply options to set the value.
2904	#
2905	# ----------------------------------------------------------------------
2906	itcl::body Rappture::VtkIsosurfaceViewer::LegendRangeAction {option args} {
2907	set c $itk_component(view)
2908
2909	switch -- $option {
2910	enter {
2911	set which [lindex $args 0]
2912	$c itemconfigure $which -fill red
2913	}
2914	leave {
2915	set which [lindex $args 0]
2916	$c itemconfigure $which -fill $itk_option(-plotforeground)
2917	}
2918	popup {
2919	DisableMouseRotationBindings
2920	set which [lindex $args 0]
2921	set _mouseOver $which
2922	$itk_component(editor) activate
2923	}
2924	activate {
2925	foreach { x1 y1 x2 y2 } [$c bbox $_mouseOver] break
2926	set which [MouseOver2Which]
2927	set info(text) [$itk_component($which) value]
2928	set info(x) [expr $x1 + [winfo rootx $c]]
2929	set info(y) [expr $y1 + [winfo rooty $c]]
2930	set info(w) [expr $x2 - $x1]
2931	set info(h) [expr $y2 - $y1]
2932	return [array get info]
2933	}
2934	validate {
2935	if {[llength $args] != 1} {
2936	error "wrong # args: should be \"editor validate value\""
2937	}
2938
2939	set value [lindex $args 0]
2940	if {[LegendRangeValidate $itk_component(editor) $_mouseOver $value] == 0} {
2941	return 0
2942	}
2943
2944	# value was good, apply it
2945	# reset the mouse rotation bindings
2946	SetupMouseRotationBindings
2947	}
2948	apply {
2949	if {[llength $args] != 1} {
2950	error "wrong # args: should be \"editor apply value\""
2951	}
2952	set value [string trim [lindex $args 0]]
2953
2954	set which [MouseOver2Which]
2955
2956	# only set custom range if value changed
2957	if {[$itk_component($which) value] != $value} {
2958	# set the flag stating the custom range came from the legend
2959	# change the value in the gauge
2960	# turn on crange to enable the labels and gauges
2961	# call AdjustSetting -range (inside ToggleCustomRange)
2962	# to update drawing and legend
2963	set _customRangeClick 0
2964	$itk_component($which) value $value
2965	$itk_component(crange) select
2966	ToggleCustomRange
2967	}
2968	}
2969	default {
2970	error "bad option \"$option\": should be enter, leave, activate, validate, apply"
2971	}
2972	}
2973	}
2974
2975	# ----------------------------------------------------------------------
2976	# USAGE: ToggleCustomRange
2977	#
2978	# Called whenever the custom range is turned on or off. Used to save
2979	# the custom min and custom max set by the user. When the -customrange
2980	# setting is turned on, the range min and range max gauges are set
2981	# with the last value set by the user, or the default range if no
2982	# previous min and max were set.
2983	#
2984	# When the custom range is turned on, we check how it was turned on
2985	# by querying _customRangeClick. If the variable is 1, this means
2986	# the user clicked the crange checkbutton and we should pull the
2987	# custom range values from our backup variables. If the variable is 0,
2988	# the custom range was enabled through the user manipulating the
2989	# min and max value in the legend.
2990	#
2991	# ----------------------------------------------------------------------
2992	itcl::body Rappture::VtkIsosurfaceViewer::ToggleCustomRange {args} {
2993	if { ! $_settings(-customrange) } {
2994	# custom range was turned off
2995
2996	# disable the min/max labels and gauge widgets
2997	$itk_component(l_min) configure -state disabled
2998	$itk_component(min) configure -state disabled
2999	$itk_component(l_max) configure -state disabled
3000	$itk_component(max) configure -state disabled
3001
3002	# backup the custom range
3003	set _settings(-customrangemin) [$itk_component(min) value]
3004	set _settings(-customrangemax) [$itk_component(max) value]
3005
3006	# set the gauges to dataset's min and max
3007	foreach { vmin vmax } $_limits($_curFldName) break
3008	SetMinMaxGauges $vmin $vmax
3009	} else {
3010	# custom range was turned on
3011
3012	# enable the min/max labels and gauge widgets
3013	$itk_component(l_min) configure -state normal
3014	$itk_component(min) configure -state normal
3015	$itk_component(l_max) configure -state normal
3016	$itk_component(max) configure -state normal
3017
3018	# if the custom range is being turned on by clicking the
3019	# checkbox, restore the min and max gauges from the backup
3020	# variables. otherwise, new values for the min and max
3021	# widgets will be set later from the legend's editor.
3022	if { $_customRangeClick } {
3023	SetMinMaxGauges $_settings(-customrangemin) $_settings(-customrangemax)
3024	}
3025
3026	# reset the click flag
3027	set _customRangeClick 1
3028	}
3029	AdjustSetting -range
3030	}
3031
3032	# ----------------------------------------------------------------------
3033	# USAGE: SetMinMaxGauges <min> <max>
3034	#
3035	# Set the min and max gauges in the correct order, avoiding the
3036	# error where you try to set the min > max before updating the max or
3037	# set the max < min before updating the min.
3038	#
3039	# There are five range cases to consider with our current range validation.
3040	# For example:
3041	# [2,3] -> [0,1] : update min first, max last
3042	# [2,3] -> [4,5] : update max first, min last
3043	# [2,3] -> [0,2.5] : update min or max first
3044	# [2,3] -> [2.5,5] : update min or max first
3045	# [2,3] -> [2.25,2.75] : update min or max first
3046	#
3047	# In 4 of the cases we can update min first and max last, so we only
3048	# need to check the case where old max < new min, where we update
3049	# max first and min last.
3050	# ----------------------------------------------------------------------
3051	itcl::body Rappture::VtkIsosurfaceViewer::SetMinMaxGauges {min max} {
3052
3053	if { [$itk_component(max) value] < $min} {
3054	# old max < new min
3055	# shift range toward right
3056	# extend max first, then update min
3057	$itk_component(max) value $max
3058	$itk_component(min) value $min
3059	} else {
3060	# extend min first, then update max
3061	$itk_component(min) value $min
3062	$itk_component(max) value $max
3063	}
3064	}
3065
3066	#
3067	# SetCurrentColormap --
3068	#
3069	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentColormap { name } {
3070	# Keep track of the colormaps that we build.
3071	if { ![info exists _colormaps($name)] } {
3072	BuildColormap $name
3073	set _colormaps($name) 1
3074	}
3075	set _currentColormap $name
3076	SendCmd "contour3d colormap $_currentColormap"
3077	SendCmd "cutplane colormap $_currentColormap"
3078	}
3079
3080	#
3081	# BuildColormap --
3082	#
3083	# Build the designated colormap on the server.
3084	#
3085	itcl::body Rappture::VtkIsosurfaceViewer::BuildColormap { name } {
3086	set cmap [ColorsToColormap $name]
3087	if { [llength $cmap] == 0 } {
3088	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
3089	}
3090	set wmap "0.0 1.0 1.0 1.0"
3091	SendCmd "colormap add $name { $cmap } { $wmap }"
3092	}
3093
3094	itcl::body Rappture::VtkIsosurfaceViewer::SetOrientation { side } {
3095	array set positions {
3096	front "1 0 0 0"
3097	back "0 0 1 0"
3098	left "0.707107 0 -0.707107 0"
3099	right "0.707107 0 0.707107 0"
3100	top "0.707107 -0.707107 0 0"
3101	bottom "0.707107 0.707107 0 0"
3102	}
3103	foreach name { -qw -qx -qy -qz } value $positions($side) {
3104	set _view($name) $value
3105	}
3106	set q [ViewToQuaternion]
3107	$_arcball quaternion $q
3108	SendCmd "camera orient $q"
3109	SendCmd "camera reset"
3110	set _view(-xpan) 0
3111	set _view(-ypan) 0
3112	set _view(-zoom) 1.0
3113	}
3114
3115	itcl::body Rappture::VtkIsosurfaceViewer::GenerateContourList {} {
3116	if { ![info exists _limits($_curFldName)] } {
3117	puts stderr "no _curFldName"
3118	return ""
3119	}
3120	if { $_contourList(numLevels) < 1 } {
3121	# There are tools that set 0 levels to get cutplanes only
3122	#puts stderr "numLevels < 1"
3123	return ""
3124	}
3125	if { [llength $_contourList(reqValues)] > 1 } {
3126	set values $_contourList(reqValues)
3127	} else {
3128	# if custom range has been set, use the custom min and max
3129	# to generate contour list values
3130	if { $_settings(-customrange) } {
3131	set vmin [$itk_component(min) value]
3132	set vmax [$itk_component(max) value]
3133	} else {
3134	# use the field limits to calculate the contour list values
3135	foreach { vmin vmax } $_limits($_curFldName) break
3136	}
3137
3138	set v [blt::vector create \#auto]
3139	$v seq $vmin $vmax [expr $_contourList(numLevels)+2]
3140	$v delete end 0
3141	set values [$v range 0 end]
3142	blt::vector destroy $v
3143	}
3144	set _contourList(values) $values
3145	}
3146
3147	itcl::body Rappture::VtkIsosurfaceViewer::SetCurrentFieldName { dataobj } {
3148	set _first $dataobj
3149	$itk_component(field) choices delete 0 end
3150	$itk_component(fieldmenu) delete 0 end
3151	array unset _fields
3152	set _curFldName ""
3153	foreach cname [$_first components] {
3154	foreach fname [$_first fieldnames $cname] {
3155	if { [info exists _fields($fname)] } {
3156	continue
3157	}
3158	foreach { label units components } \
3159	[$_first fieldinfo $fname] break
3160	$itk_component(field) choices insert end "$fname" "$label"
3161	$itk_component(fieldmenu) add radiobutton -label "$label" \
3162	-value $label -variable [itcl::scope _curFldLabel] \
3163	-selectcolor red \
3164	-activebackground $itk_option(-plotbackground) \
3165	-activeforeground $itk_option(-plotforeground) \
3166	-font "Arial 8" \
3167	-command [itcl::code $this LegendTitleAction save]
3168	set _fields($fname) [list $label $units $components]
3169	if { $_curFldName == "" } {
3170	set _curFldName $fname
3171	set _curFldLabel $label
3172	}
3173	}
3174	}
3175	$itk_component(field) value $_curFldLabel
3176	if { $_settings(-customrange) } {
3177	set limits [list [$itk_component(min) value] [$itk_component(max) value]]
3178	SendCmd "dataset maprange explicit $limits $_curFldName"
3179	if { $limits != $_currentLimits } {
3180	set _currentLimits $limits
3181	EventuallyChangeContourLevels
3182	}
3183	} else {
3184	if { ![info exists _limits($_curFldName)] } {
3185	SendCmd "dataset maprange all"
3186	} else {
3187	set limits $_limits($_curFldName)
3188	SendCmd "dataset maprange explicit $limits $_curFldName"
3189	if { $limits != $_currentLimits } {
3190	set _currentLimits $limits
3191	EventuallyChangeContourLevels
3192	}
3193	}
3194	}
3195	}

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

Download in other formats: