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source: trunk/gui/scripts/vtksurfaceviewer.tcl @ 6302

Last change on this file since 6302 was 6302, checked in by ldelgass, 8 years ago
remove code with no effect
File size: 78.3 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtksurfaceviewer - Vtk 3D boundary surface viewer
4	#
5	# It connects to the Vtkvis server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2016 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 *VtkSurfaceViewer.width 4i widgetDefault
19	option add VtkSurfaceViewercursor crosshair widgetDefault
20	option add *VtkSurfaceViewer.height 4i widgetDefault
21	option add *VtkSurfaceViewer.foreground black widgetDefault
22	option add *VtkSurfaceViewer.controlBackground gray widgetDefault
23	option add *VtkSurfaceViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkSurfaceViewer.plotBackground black widgetDefault
25	option add *VtkSurfaceViewer.plotForeground white widgetDefault
26	option add *VtkSurfaceViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkSurfaceViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkSurfaceViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkSurfaceViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { args } {
42	Rappture::VisViewer::constructor
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 BuildDownloadPopup { widget command }
70	private method BuildSurfaceTab {}
71	private method Combo { option }
72	private method Connect {}
73	private method CurrentDatasets {args}
74	private method Disconnect {}
75	private method DoResize {}
76	private method DoRotate {}
77	private method DrawLegend {}
78	private method EnterLegend { x y }
79	private method EventuallyRequestLegend {}
80	private method EventuallyResize { w h }
81	private method EventuallyRotate { q }
82	private method GetImage { args }
83	private method GetVtkData { args }
84	private method InitSettings { args }
85	private method IsValidObject { dataobj }
86	private method LeaveLegend {}
87	private method MotionLegend { x y }
88	private method Pan {option x y}
89	private method PanCamera {}
90	private method Pick {x y}
91	private method QuaternionToView { q } {
92	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
93	}
94	private method Rebuild {}
95	private method ReceiveDataset { args }
96	private method ReceiveImage { args }
97	private method ReceiveLegend { colormap title vmin vmax size }
98	private method RequestLegend {}
99	private method Rotate {option x y}
100	private method SetCurrentColormap { color }
101	private method SetCurrentFieldName { dataobj }
102	private method SetLegendTip { x y }
103	private method SetObjectStyle { dataobj comp }
104	private method SetOrientation { side }
105	private method UpdateContourList {}
106	private method ViewToQuaternion {} {
107	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
108	}
109	private method Zoom {option}
110
111	private variable _arcball ""
112
113	private variable _dlist ""; # list of data objects
114	private variable _obj2ovride; # maps dataobj => style override
115	private variable _datasets; # contains all the dataobj-component
116	# datasets in the server
117	private variable _colormaps; # contains all the colormaps
118	# in the server.
119	# The name of the current colormap used. The colormap is global to all
120	# heightmaps displayed.
121	private variable _currentColormap ""
122	private variable _currentNumContours -1
123
124	private variable _click; # info used for rotate operations
125	private variable _limits; # autoscale min/max for all axes
126	private variable _view; # view params for 3D view
127	private variable _settings
128	private variable _changed
129	private variable _reset 1; # Connection to server has been reset.
130
131	private variable _first ""; # This is the topmost dataset.
132	private variable _start 0
133	private variable _title ""
134	private variable _isolines
135	private variable _contourList ""
136	private variable _width 0
137	private variable _height 0
138	private variable _resizePending 0
139	private variable _legendPending 0
140	private variable _rotatePending 0
141	private variable _field ""
142	private variable _colorMode "scalar"; # Mode of colormap (vmag or scalar)
143	private variable _fields
144	private variable _curFldName ""
145	private variable _curFldLabel ""
146
147	private common _downloadPopup; # download options from popup
148	private common _hardcopy
149	}
150
151	itk::usual VtkSurfaceViewer {
152	keep -background -foreground -cursor -font
153	keep -plotbackground -plotforeground
154	}
155
156	# ----------------------------------------------------------------------
157	# CONSTRUCTOR
158	# ----------------------------------------------------------------------
159	itcl::body Rappture::VtkSurfaceViewer::constructor {args} {
160	set _serverType "vtkvis"
161	#DebugOn
162
163	# Rebuild event
164	$_dispatcher register !rebuild
165	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
166
167	# Resize event
168	$_dispatcher register !resize
169	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
170
171	# Legend event
172	$_dispatcher register !legend
173	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
174
175	# Rotate event
176	$_dispatcher register !rotate
177	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
178
179	#
180	# Populate parser with commands handle incoming requests
181	#
182	$_parser alias image [itcl::code $this ReceiveImage]
183	$_parser alias legend [itcl::code $this ReceiveLegend]
184	$_parser alias dataset [itcl::code $this ReceiveDataset]
185
186	# Initialize the view to some default parameters.
187	array set _view {
188	-ortho 0
189	-qw 0.853553
190	-qx -0.353553
191	-qy 0.353553
192	-qz 0.146447
193	-xpan 0
194	-ypan 0
195	-zoom 1.0
196	}
197	set _arcball [blt::arcball create 100 100]
198	$_arcball quaternion [ViewToQuaternion]
199
200	array set _settings {
201	-axesvisible 1
202	-axislabels 1
203	-axisminorticks 1
204	-axismode "static"
205	-background black
206	-colormap BCGYR
207	-colormapvisible 1
208	-field "Default"
209	-isolinecolor white
210	-isolinesvisible 0
211	-legendvisible 1
212	-numcontours 10
213	-outline 0
214	-surfaceedges 0
215	-surfacelighting 1
216	-surfaceopacity 100
217	-surfacevisible 1
218	-surfacewireframe 0
219	-xgrid 0
220	-ygrid 0
221	-zgrid 0
222	}
223	array set _changed {
224	-colormap 0
225	-isolinecolor 0
226	-isolinesvisible 0
227	-numcontours 0
228	-outline 0
229	-surfaceedges 0
230	-surfacelighting 0
231	-surfaceopacity 0
232	-surfacevisible 0
233	-surfacewireframe 0
234	}
235
236	itk_component add view {
237	canvas $itk_component(plotarea).view \
238	-highlightthickness 0 -borderwidth 0
239	} {
240	usual
241	ignore -highlightthickness -borderwidth -background
242	}
243
244	itk_component add fieldmenu {
245	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
246	-tearoff 0
247	} {
248	usual
249	ignore -background -foreground -relief -tearoff
250	}
251	set c $itk_component(view)
252	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
253	bind $c <Control-F1> [itcl::code $this ToggleConsole]
254
255	# Fix the scrollregion in case we go off screen
256	$c configure -scrollregion [$c bbox all]
257
258	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
259	set _map(cwidth) -1
260	set _map(cheight) -1
261	set _map(zoom) 1.0
262	set _map(original) ""
263
264	set f [$itk_component(main) component controls]
265	itk_component add reset {
266	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
267	-highlightthickness 0 \
268	-image [Rappture::icon reset-view] \
269	-command [itcl::code $this Zoom reset]
270	} {
271	usual
272	ignore -highlightthickness
273	}
274	pack $itk_component(reset) -side top -padx 2 -pady 2
275	Rappture::Tooltip::for $itk_component(reset) \
276	"Reset the view to the default zoom level"
277
278	itk_component add zoomin {
279	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
280	-highlightthickness 0 \
281	-image [Rappture::icon zoom-in] \
282	-command [itcl::code $this Zoom in]
283	} {
284	usual
285	ignore -highlightthickness
286	}
287	pack $itk_component(zoomin) -side top -padx 2 -pady 2
288	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
289
290	itk_component add zoomout {
291	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
292	-highlightthickness 0 \
293	-image [Rappture::icon zoom-out] \
294	-command [itcl::code $this Zoom out]
295	} {
296	usual
297	ignore -highlightthickness
298	}
299	pack $itk_component(zoomout) -side top -padx 2 -pady 2
300	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
301
302	itk_component add surface {
303	Rappture::PushButton $f.surface \
304	-onimage [Rappture::icon volume-on] \
305	-offimage [Rappture::icon volume-off] \
306	-variable [itcl::scope _settings(-surfacevisible)] \
307	-command [itcl::code $this AdjustSetting -surfacevisible]
308	}
309	$itk_component(surface) select
310	Rappture::Tooltip::for $itk_component(surface) \
311	"Hide the surface"
312	pack $itk_component(surface) -padx 2 -pady 2
313
314	if { [catch {
315	BuildSurfaceTab
316	BuildAxisTab
317	BuildCameraTab
318	} errs] != 0 } {
319	puts stderr errs=$errs
320	}
321
322	# Legend
323	set _image(legend) [image create photo]
324	itk_component add legend {
325	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
326	} {
327	usual
328	ignore -highlightthickness
329	rename -background -plotbackground plotBackground Background
330	}
331
332	# Hack around the Tk panewindow. The problem is that the requested
333	# size of the 3d view isn't set until an image is retrieved from
334	# the server. So the panewindow uses the tiny size.
335	set w 10000
336	pack forget $itk_component(view)
337	blt::table $itk_component(plotarea) \
338	0,0 $itk_component(view) -fill both -reqwidth $w
339	blt::table configure $itk_component(plotarea) c1 -resize none
340
341	# Bindings for rotation via mouse
342	bind $itk_component(view) <ButtonPress-1> \
343	[itcl::code $this Rotate click %x %y]
344	bind $itk_component(view) <B1-Motion> \
345	[itcl::code $this Rotate drag %x %y]
346	bind $itk_component(view) <ButtonRelease-1> \
347	[itcl::code $this Rotate release %x %y]
348
349	# Bindings for panning via mouse
350	bind $itk_component(view) <ButtonPress-2> \
351	[itcl::code $this Pan click %x %y]
352	bind $itk_component(view) <B2-Motion> \
353	[itcl::code $this Pan drag %x %y]
354	bind $itk_component(view) <ButtonRelease-2> \
355	[itcl::code $this Pan release %x %y]
356
357	#bind $itk_component(view) <ButtonRelease-3> \
358	# [itcl::code $this Pick %x %y]
359
360	# Bindings for panning via keyboard
361	bind $itk_component(view) <KeyPress-Left> \
362	[itcl::code $this Pan set -10 0]
363	bind $itk_component(view) <KeyPress-Right> \
364	[itcl::code $this Pan set 10 0]
365	bind $itk_component(view) <KeyPress-Up> \
366	[itcl::code $this Pan set 0 -10]
367	bind $itk_component(view) <KeyPress-Down> \
368	[itcl::code $this Pan set 0 10]
369	bind $itk_component(view) <Shift-KeyPress-Left> \
370	[itcl::code $this Pan set -2 0]
371	bind $itk_component(view) <Shift-KeyPress-Right> \
372	[itcl::code $this Pan set 2 0]
373	bind $itk_component(view) <Shift-KeyPress-Up> \
374	[itcl::code $this Pan set 0 -2]
375	bind $itk_component(view) <Shift-KeyPress-Down> \
376	[itcl::code $this Pan set 0 2]
377
378	# Bindings for zoom via keyboard
379	bind $itk_component(view) <KeyPress-Prior> \
380	[itcl::code $this Zoom out]
381	bind $itk_component(view) <KeyPress-Next> \
382	[itcl::code $this Zoom in]
383
384	bind $itk_component(view) <Enter> "focus $itk_component(view)"
385
386	if {[string equal "x11" [tk windowingsystem]]} {
387	# Bindings for zoom via mouse
388	bind $itk_component(view) <4> [itcl::code $this Zoom out]
389	bind $itk_component(view) <5> [itcl::code $this Zoom in]
390	}
391
392	set _image(download) [image create photo]
393
394	eval itk_initialize $args
395
396	EnableWaitDialog 900
397	Connect
398	}
399
400	# ----------------------------------------------------------------------
401	# DESTRUCTOR
402	# ----------------------------------------------------------------------
403	itcl::body Rappture::VtkSurfaceViewer::destructor {} {
404	Disconnect
405	image delete $_image(plot)
406	image delete $_image(download)
407	catch { blt::arcball destroy $_arcball }
408	}
409
410	itcl::body Rappture::VtkSurfaceViewer::DoResize {} {
411	if { $_width < 2 } {
412	set _width 500
413	}
414	if { $_height < 2 } {
415	set _height 500
416	}
417	set _start [clock clicks -milliseconds]
418	SendCmd "screen size $_width $_height"
419
420	EventuallyRequestLegend
421	set _resizePending 0
422	}
423
424	itcl::body Rappture::VtkSurfaceViewer::DoRotate {} {
425	SendCmd "camera orient [ViewToQuaternion]"
426	set _rotatePending 0
427	}
428
429	itcl::body Rappture::VtkSurfaceViewer::EventuallyRequestLegend {} {
430	if { !$_legendPending } {
431	set _legendPending 1
432	$_dispatcher event -idle !legend
433	}
434	}
435
436	itcl::body Rappture::VtkSurfaceViewer::EventuallyResize { w h } {
437	set _width $w
438	set _height $h
439	$_arcball resize $w $h
440	if { !$_resizePending } {
441	set _resizePending 1
442	$_dispatcher event -after 400 !resize
443	}
444	}
445
446	itcl::body Rappture::VtkSurfaceViewer::EventuallyRotate { q } {
447	QuaternionToView $q
448	if { !$_rotatePending } {
449	set _rotatePending 1
450	$_dispatcher event -after 100 !rotate
451	}
452	}
453
454	# ----------------------------------------------------------------------
455	# USAGE: add <dataobj> ?<settings>?
456	#
457	# Clients use this to add a data object to the plot. The optional
458	# <settings> are used to configure the plot. Allowed settings are
459	# -color, -brightness, -width, -linestyle, and -raise.
460	# ----------------------------------------------------------------------
461	itcl::body Rappture::VtkSurfaceViewer::add {dataobj {settings ""}} {
462	if { ![$dataobj isvalid] } {
463	return; # Object doesn't contain valid data.
464	}
465	array set params {
466	-color auto
467	-width 1
468	-linestyle solid
469	-brightness 0
470	-raise 0
471	-description ""
472	-param ""
473	-type ""
474	}
475	array set params $settings
476
477	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
478	# can't handle -autocolors yet
479	set params(-color) black
480	}
481	set pos [lsearch -exact $_dlist $dataobj]
482	if {$pos < 0} {
483	lappend _dlist $dataobj
484	}
485	set _obj2ovride($dataobj-color) $params(-color)
486	set _obj2ovride($dataobj-width) $params(-width)
487	set _obj2ovride($dataobj-raise) $params(-raise)
488	$_dispatcher event -idle !rebuild
489	}
490
491	# ----------------------------------------------------------------------
492	# USAGE: delete ?<dataobj1> <dataobj2> ...?
493	#
494	# Clients use this to delete a dataobj from the plot. If no dataobjs
495	# are specified, then all dataobjs are deleted. No data objects are
496	# deleted. They are only removed from the display list.
497	# ----------------------------------------------------------------------
498	itcl::body Rappture::VtkSurfaceViewer::delete {args} {
499	if { [llength $args] == 0} {
500	set args $_dlist
501	}
502	# Delete all specified dataobjs
503	set changed 0
504	foreach dataobj $args {
505	set pos [lsearch -exact $_dlist $dataobj]
506	if { $pos < 0 } {
507	continue; # Don't know anything about it.
508	}
509	# Remove it from the dataobj list.
510	set _dlist [lreplace $_dlist $pos $pos]
511	array unset _obj2ovride $dataobj-*
512	array unset _settings $dataobj-*
513	set changed 1
514	}
515	# If anything changed, then rebuild the plot
516	if { $changed } {
517	$_dispatcher event -idle !rebuild
518	}
519	}
520
521	# ----------------------------------------------------------------------
522	# USAGE: get ?-objects?
523	# USAGE: get ?-visible?
524	# USAGE: get ?-image view?
525	#
526	# Clients use this to query the list of objects being plotted, in
527	# order from bottom to top of this result. The optional "-image"
528	# flag can also request the internal images being shown.
529	# ----------------------------------------------------------------------
530	itcl::body Rappture::VtkSurfaceViewer::get {args} {
531	if {[llength $args] == 0} {
532	set args "-objects"
533	}
534
535	set op [lindex $args 0]
536	switch -- $op {
537	"-objects" {
538	# put the dataobj list in order according to -raise options
539	set dlist {}
540	foreach dataobj $_dlist {
541	if { ![IsValidObject $dataobj] } {
542	continue
543	}
544	if {[info exists _obj2ovride($dataobj-raise)] &&
545	$_obj2ovride($dataobj-raise)} {
546	set dlist [linsert $dlist 0 $dataobj]
547	} else {
548	lappend dlist $dataobj
549	}
550	}
551	return $dlist
552	}
553	"-visible" {
554	set dlist {}
555	foreach dataobj $_dlist {
556	if { ![IsValidObject $dataobj] } {
557	continue
558	}
559	if { ![info exists _obj2ovride($dataobj-raise)] } {
560	# No setting indicates that the object isn't visible.
561	continue
562	}
563	# Otherwise use the -raise parameter to put the object to
564	# the front of the list.
565	if { $_obj2ovride($dataobj-raise) } {
566	set dlist [linsert $dlist 0 $dataobj]
567	} else {
568	lappend dlist $dataobj
569	}
570	}
571	return $dlist
572	}
573	-image {
574	if {[llength $args] != 2} {
575	error "wrong # args: should be \"get -image view\""
576	}
577	switch -- [lindex $args end] {
578	view {
579	return $_image(plot)
580	}
581	default {
582	error "bad image name \"[lindex $args end]\": should be view"
583	}
584	}
585	}
586	default {
587	error "bad option \"$op\": should be -objects or -image"
588	}
589	}
590	}
591
592	# ----------------------------------------------------------------------
593	# USAGE: scale ?<data1> <data2> ...?
594	#
595	# Sets the default limits for the overall plot according to the
596	# limits of the data for all of the given <data> objects. This
597	# accounts for all objects--even those not showing on the screen.
598	# Because of this, the limits are appropriate for all objects as
599	# the user scans through data in the ResultSet viewer.
600	# ----------------------------------------------------------------------
601	itcl::body Rappture::VtkSurfaceViewer::scale { args } {
602	foreach dataobj $args {
603	if { ![$dataobj isvalid] } {
604	continue; # Object doesn't contain valid data.
605	}
606	foreach axis { x y z } {
607	set lim [$dataobj limits $axis]
608	if { ![info exists _limits($axis)] } {
609	set _limits($axis) $lim
610	continue
611	}
612	foreach {min max} $lim break
613	foreach {amin amax} $_limits($axis) break
614	if { $amin > $min } {
615	set amin $min
616	}
617	if { $amax < $max } {
618	set amax $max
619	}
620	set _limits($axis) [list $amin $amax]
621	}
622	foreach { fname lim } [$dataobj fieldlimits] {
623	if { ![info exists _limits($fname)] } {
624	set _limits($fname) $lim
625	continue
626	}
627	foreach {min max} $lim break
628	foreach {fmin fmax} $_limits($fname) break
629	if { $fmin > $min } {
630	set fmin $min
631	}
632	if { $fmax < $max } {
633	set fmax $max
634	}
635	set _limits($fname) [list $fmin $fmax]
636	}
637	}
638	}
639
640	# ----------------------------------------------------------------------
641	# USAGE: download coming
642	# USAGE: download controls <downloadCommand>
643	# USAGE: download now
644	#
645	# Clients use this method to create a downloadable representation
646	# of the plot. Returns a list of the form {ext string}, where
647	# "ext" is the file extension (indicating the type of data) and
648	# "string" is the data itself.
649	# ----------------------------------------------------------------------
650	itcl::body Rappture::VtkSurfaceViewer::download {option args} {
651	switch $option {
652	coming {
653	if {[catch {
654	blt::winop snap $itk_component(plotarea) $_image(download)
655	}]} {
656	$_image(download) configure -width 1 -height 1
657	$_image(download) put #000000
658	}
659	}
660	controls {
661	set popup .vtkviewerdownload
662	if { ![winfo exists .vtkviewerdownload] } {
663	set inner [BuildDownloadPopup $popup [lindex $args 0]]
664	} else {
665	set inner [$popup component inner]
666	}
667	set _downloadPopup(image_controls) $inner.image_frame
668	set num [llength [get]]
669	set num [expr {($num == 1) ? "1 result" : "$num results"}]
670	set word [Rappture::filexfer::label downloadWord]
671	$inner.summary configure -text "$word $num in the following format:"
672	update idletasks ;# Fix initial sizes
673	return $popup
674	}
675	now {
676	set popup .vtkviewerdownload
677	if {[winfo exists .vtkviewerdownload]} {
678	$popup deactivate
679	}
680	switch -- $_downloadPopup(format) {
681	"image" {
682	return [$this GetImage [lindex $args 0]]
683	}
684	"vtk" {
685	return [$this GetVtkData [lindex $args 0]]
686	}
687	}
688	return ""
689	}
690	default {
691	error "bad option \"$option\": should be coming, controls, now"
692	}
693	}
694	}
695
696	# ----------------------------------------------------------------------
697	# USAGE: Connect ?<host:port>,<host:port>...?
698	#
699	# Clients use this method to establish a connection to a new
700	# server, or to reestablish a connection to the previous server.
701	# Any existing connection is automatically closed.
702	# ----------------------------------------------------------------------
703	itcl::body Rappture::VtkSurfaceViewer::Connect {} {
704	set _hosts [GetServerList "vtkvis"]
705	if { "" == $_hosts } {
706	return 0
707	}
708	set _reset 1
709	set result [VisViewer::Connect $_hosts]
710	if { $result } {
711	if { $_reportClientInfo } {
712	# Tell the server the viewer, hub, user and session.
713	# Do this immediately on connect before buffering any commands
714	global env
715
716	set info {}
717	set user "???"
718	if { [info exists env(USER)] } {
719	set user $env(USER)
720	}
721	set session "???"
722	if { [info exists env(SESSION)] } {
723	set session $env(SESSION)
724	}
725	lappend info "version" "$Rappture::version"
726	lappend info "build" "$Rappture::build"
727	lappend info "svnurl" "$Rappture::svnurl"
728	lappend info "installdir" "$Rappture::installdir"
729	lappend info "hub" [exec hostname]
730	lappend info "client" "vtksurfaceviewer"
731	lappend info "user" $user
732	lappend info "session" $session
733	SendCmd "clientinfo [list $info]"
734	}
735
736	set w [winfo width $itk_component(view)]
737	set h [winfo height $itk_component(view)]
738	EventuallyResize $w $h
739	}
740	return $result
741	}
742
743	#
744	# isconnected --
745	#
746	# Indicates if we are currently connected to the visualization server.
747	#
748	itcl::body Rappture::VtkSurfaceViewer::isconnected {} {
749	return [VisViewer::IsConnected]
750	}
751
752	#
753	# disconnect --
754	#
755	itcl::body Rappture::VtkSurfaceViewer::disconnect {} {
756	Disconnect
757	set _reset 1
758	}
759
760	#
761	# Disconnect --
762	#
763	# Clients use this method to disconnect from the current rendering server.
764	#
765	itcl::body Rappture::VtkSurfaceViewer::Disconnect {} {
766	VisViewer::Disconnect
767
768	$_dispatcher cancel !rebuild
769	$_dispatcher cancel !resize
770	$_dispatcher cancel !rotate
771	$_dispatcher cancel !legend
772	# disconnected -- no more data sitting on server
773	array unset _datasets
774	array unset _colormaps
775	}
776
777	# ----------------------------------------------------------------------
778	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
779	#
780	# Invoked automatically whenever the "image" command comes in from
781	# the rendering server. Indicates that binary image data with the
782	# specified <size> will follow.
783	# ----------------------------------------------------------------------
784	itcl::body Rappture::VtkSurfaceViewer::ReceiveImage { args } {
785	array set info {
786	-token "???"
787	-bytes 0
788	-type image
789	}
790	array set info $args
791	set bytes [ReceiveBytes $info(-bytes)]
792	if { $info(-type) == "image" } {
793	if 0 {
794	set f [open "last.ppm" "w"]
795	fconfigure $f -encoding binary
796	puts -nonewline $f $bytes
797	close $f
798	}
799	$_image(plot) configure -data $bytes
800	#set time [clock seconds]
801	#set date [clock format $time]
802	#set w [image width $_image(plot)]
803	#set h [image height $_image(plot)]
804	#puts stderr "$date: received image ${w}x${h} image"
805	if { $_start > 0 } {
806	set finish [clock clicks -milliseconds]
807	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
808	set _start 0
809	}
810	} elseif { $info(type) == "print" } {
811	set tag $this-print-$info(-token)
812	set _hardcopy($tag) $bytes
813	}
814	}
815
816	#
817	# ReceiveDataset --
818	#
819	itcl::body Rappture::VtkSurfaceViewer::ReceiveDataset { args } {
820	if { ![isconnected] } {
821	return
822	}
823	set option [lindex $args 0]
824	switch -- $option {
825	"scalar" {
826	set option [lindex $args 1]
827	switch -- $option {
828	"world" {
829	foreach { x y z value tag } [lrange $args 2 end] break
830	}
831	"pixel" {
832	foreach { x y value tag } [lrange $args 2 end] break
833	}
834	}
835	}
836	"vector" {
837	set option [lindex $args 1]
838	switch -- $option {
839	"world" {
840	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
841	}
842	"pixel" {
843	foreach { x y vx vy vz tag } [lrange $args 2 end] break
844	}
845	}
846	}
847	"names" {
848	foreach { name } [lindex $args 1] {
849	#puts stderr "Dataset: $name"
850	}
851	}
852	default {
853	error "unknown dataset option \"$option\" from server"
854	}
855	}
856	}
857
858	# ----------------------------------------------------------------------
859	# USAGE: Rebuild
860	#
861	# Called automatically whenever something changes that affects the
862	# data in the widget. Clears any existing data and rebuilds the
863	# widget to display new data.
864	# ----------------------------------------------------------------------
865	itcl::body Rappture::VtkSurfaceViewer::Rebuild {} {
866	set w [winfo width $itk_component(view)]
867	set h [winfo height $itk_component(view)]
868	if { $w < 2 \|\| $h < 2 } {
869	update
870	$_dispatcher event -idle !rebuild
871	return
872	}
873
874	# Turn on buffering of commands to the server. We don't want to
875	# be preempted by a server disconnect/reconnect (which automatically
876	# generates a new call to Rebuild).
877	StartBufferingCommands
878
879	if { $_reset } {
880	set _width $w
881	set _height $h
882	$_arcball resize $w $h
883	DoResize
884	# Reset the camera and other view parameters
885	$_arcball quaternion [ViewToQuaternion]
886	if {$_view(-ortho)} {
887	SendCmd "camera mode ortho"
888	} else {
889	SendCmd "camera mode persp"
890	}
891	DoRotate
892	PanCamera
893	set _first ""
894	InitSettings -background \
895	-xgrid -ygrid -zgrid -axismode \
896	-axesvisible -axislabels -axisminorticks
897	#SendCmd "axis lformat all %g"
898	StopBufferingCommands
899	SendCmd "imgflush"
900	StartBufferingCommands
901	}
902	set _first ""
903	SendCmd "dataset visible 0"
904	eval scale $_dlist
905	foreach dataobj [get -objects] {
906	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
907	set _first $dataobj
908	SetCurrentFieldName $dataobj
909	}
910	foreach comp [$dataobj components] {
911	set tag $dataobj-$comp
912	if { ![info exists _datasets($tag)] } {
913	set bytes [$dataobj vtkdata $comp]
914	if 0 {
915	set f [open "/tmp/surface.vtk" "w"]
916	fconfigure $f -translation binary -encoding binary
917	puts -nonewline $f $bytes
918	close $f
919	}
920	set length [string length $bytes]
921	if { $_reportClientInfo } {
922	set info {}
923	lappend info "tool_id" [$dataobj hints toolid]
924	lappend info "tool_name" [$dataobj hints toolname]
925	lappend info "tool_title" [$dataobj hints tooltitle]
926	lappend info "tool_command" [$dataobj hints toolcommand]
927	lappend info "tool_revision" [$dataobj hints toolrevision]
928	lappend info "dataset_label" [$dataobj hints label]
929	lappend info "dataset_size" $length
930	lappend info "dataset_tag" $tag
931	SendCmd "clientinfo [list $info]"
932	}
933	SendCmd "dataset add $tag data follows $length"
934	SendData $bytes
935	set _datasets($tag) 1
936	SetObjectStyle $dataobj $comp
937	}
938	if { [info exists _obj2ovride($dataobj-raise)] } {
939	SendCmd "polydata visible 1 $tag"
940	}
941	}
942	}
943
944	InitSettings -isolinesvisible -surfacevisible -outline
945	if { $_reset } {
946	# These are settings that rely on a dataset being loaded.
947	InitSettings \
948	-surfacelighting \
949	-field \
950	-surfaceedges -surfacelighting -surfaceopacity \
951	-surfacewireframe \
952	-numcontours
953
954	Zoom reset
955	foreach axis { x y z } {
956	set label ""
957	if { $_first != "" } {
958	set label [$_first hints ${axis}label]
959	}
960	if { $label == "" } {
961	set label [string toupper $axis]
962	}
963	# There may be a space in the axis label.
964	SendCmd [list axis name $axis $label]
965	}
966	if { [array size _fields] < 2 } {
967	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
968	}
969	set _reset 0
970	}
971	# Redraw the legend even if we're using the same colormap. The position
972	# of the isolines may have changed because the range of data changed.
973	DrawLegend
974
975	# Actually write the commands to the server socket. If it fails, we don't
976	# care. We're finished here.
977	blt::busy hold $itk_component(hull)
978	StopBufferingCommands; # Turn off buffering and send commands.
979	blt::busy release $itk_component(hull)
980	}
981
982	# ----------------------------------------------------------------------
983	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
984	#
985	# Returns a list of server IDs for the current datasets being displayed. This
986	# is normally a single ID, but it might be a list of IDs if the current data
987	# object has multiple components.
988	# ----------------------------------------------------------------------
989	itcl::body Rappture::VtkSurfaceViewer::CurrentDatasets {args} {
990	set flag [lindex $args 0]
991	switch -- $flag {
992	"-all" {
993	if { [llength $args] > 1 } {
994	error "CurrentDatasets: can't specify dataobj after \"-all\""
995	}
996	set dlist [get -objects]
997	}
998	"-visible" {
999	if { [llength $args] > 1 } {
1000	set dlist {}
1001	set args [lrange $args 1 end]
1002	foreach dataobj $args {
1003	if { [info exists _obj2ovride($dataobj-raise)] } {
1004	lappend dlist $dataobj
1005	}
1006	}
1007	} else {
1008	set dlist [get -visible]
1009	}
1010	}
1011	default {
1012	set dlist $args
1013	}
1014	}
1015	set rlist ""
1016	foreach dataobj $dlist {
1017	foreach comp [$dataobj components] {
1018	set tag $dataobj-$comp
1019	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1020	lappend rlist $tag
1021	}
1022	}
1023	}
1024	return $rlist
1025	}
1026
1027	# ----------------------------------------------------------------------
1028	# USAGE: Zoom in
1029	# USAGE: Zoom out
1030	# USAGE: Zoom reset
1031	#
1032	# Called automatically when the user clicks on one of the zoom
1033	# controls for this widget. Changes the zoom for the current view.
1034	# ----------------------------------------------------------------------
1035	itcl::body Rappture::VtkSurfaceViewer::Zoom {option} {
1036	switch -- $option {
1037	"in" {
1038	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1039	SendCmd "camera zoom $_view(-zoom)"
1040	}
1041	"out" {
1042	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1043	SendCmd "camera zoom $_view(-zoom)"
1044	}
1045	"reset" {
1046	array set _view {
1047	-qw 0.853553
1048	-qx -0.353553
1049	-qy 0.353553
1050	-qz 0.146447
1051	-xpan 0
1052	-ypan 0
1053	-zoom 1.0
1054	}
1055	if { $_first != "" } {
1056	set location [$_first hints camera]
1057	if { $location != "" } {
1058	array set _view $location
1059	}
1060	}
1061	$_arcball quaternion [ViewToQuaternion]
1062	DoRotate
1063	SendCmd "camera reset"
1064	}
1065	}
1066	}
1067
1068	itcl::body Rappture::VtkSurfaceViewer::PanCamera {} {
1069	set x $_view(-xpan)
1070	set y $_view(-ypan)
1071	SendCmd "camera pan $x $y"
1072	}
1073
1074	# ----------------------------------------------------------------------
1075	# USAGE: Rotate click <x> <y>
1076	# USAGE: Rotate drag <x> <y>
1077	# USAGE: Rotate release <x> <y>
1078	#
1079	# Called automatically when the user clicks/drags/releases in the
1080	# plot area. Moves the plot according to the user's actions.
1081	# ----------------------------------------------------------------------
1082	itcl::body Rappture::VtkSurfaceViewer::Rotate {option x y} {
1083	switch -- $option {
1084	"click" {
1085	$itk_component(view) configure -cursor fleur
1086	set _click(x) $x
1087	set _click(y) $y
1088	}
1089	"drag" {
1090	if {[array size _click] == 0} {
1091	Rotate click $x $y
1092	} else {
1093	set w [winfo width $itk_component(view)]
1094	set h [winfo height $itk_component(view)]
1095	if {$w <= 0 \|\| $h <= 0} {
1096	return
1097	}
1098
1099	if {[catch {
1100	# this fails sometimes for no apparent reason
1101	set dx [expr {double($x-$_click(x))/$w}]
1102	set dy [expr {double($y-$_click(y))/$h}]
1103	}]} {
1104	return
1105	}
1106	if { $dx == 0 && $dy == 0 } {
1107	return
1108	}
1109	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1110	EventuallyRotate $q
1111	set _click(x) $x
1112	set _click(y) $y
1113	}
1114	}
1115	"release" {
1116	Rotate drag $x $y
1117	$itk_component(view) configure -cursor ""
1118	catch {unset _click}
1119	}
1120	default {
1121	error "bad option \"$option\": should be click, drag, release"
1122	}
1123	}
1124	}
1125
1126	itcl::body Rappture::VtkSurfaceViewer::Pick {x y} {
1127	foreach tag [CurrentDatasets -visible] {
1128	SendCmd "dataset getscalar pixel $x $y $tag"
1129	}
1130	}
1131
1132	# ----------------------------------------------------------------------
1133	# USAGE: $this Pan click x y
1134	# $this Pan drag x y
1135	# $this Pan release x y
1136	#
1137	# Called automatically when the user clicks on one of the zoom
1138	# controls for this widget. Changes the zoom for the current view.
1139	# ----------------------------------------------------------------------
1140	itcl::body Rappture::VtkSurfaceViewer::Pan {option x y} {
1141	switch -- $option {
1142	"set" {
1143	set w [winfo width $itk_component(view)]
1144	set h [winfo height $itk_component(view)]
1145	set x [expr $x / double($w)]
1146	set y [expr $y / double($h)]
1147	set _view(-xpan) [expr $_view(-xpan) + $x]
1148	set _view(-ypan) [expr $_view(-ypan) + $y]
1149	PanCamera
1150	return
1151	}
1152	"click" {
1153	set _click(x) $x
1154	set _click(y) $y
1155	$itk_component(view) configure -cursor hand1
1156	}
1157	"drag" {
1158	if { ![info exists _click(x)] } {
1159	set _click(x) $x
1160	}
1161	if { ![info exists _click(y)] } {
1162	set _click(y) $y
1163	}
1164	set w [winfo width $itk_component(view)]
1165	set h [winfo height $itk_component(view)]
1166	set dx [expr ($_click(x) - $x)/double($w)]
1167	set dy [expr ($_click(y) - $y)/double($h)]
1168	set _click(x) $x
1169	set _click(y) $y
1170	set _view(-xpan) [expr $_view(-xpan) - $dx]
1171	set _view(-ypan) [expr $_view(-ypan) - $dy]
1172	PanCamera
1173	}
1174	"release" {
1175	Pan drag $x $y
1176	$itk_component(view) configure -cursor ""
1177	}
1178	default {
1179	error "unknown option \"$option\": should set, click, drag, or release"
1180	}
1181	}
1182	}
1183
1184	# ----------------------------------------------------------------------
1185	# USAGE: InitSettings <what> ?<value>?
1186	#
1187	# Used internally to update rendering settings whenever parameters
1188	# change in the popup settings panel. Sends the new settings off
1189	# to the back end.
1190	# ----------------------------------------------------------------------
1191	itcl::body Rappture::VtkSurfaceViewer::InitSettings { args } {
1192	foreach spec $args {
1193	if { [info exists _settings($_first${spec})] } {
1194	# Reset global setting with dataobj specific setting
1195	set _settings($spec) $_settings($_first${spec})
1196	}
1197	AdjustSetting $spec
1198	}
1199	}
1200
1201	#
1202	# AdjustSetting --
1203	#
1204	# Changes/updates a specific setting in the widget. There are
1205	# usually user-setable option. Commands are sent to the render
1206	# server.
1207	#
1208	itcl::body Rappture::VtkSurfaceViewer::AdjustSetting {what {value ""}} {
1209	if { ![isconnected] } {
1210	return
1211	}
1212	switch -- $what {
1213	"-axesvisible" {
1214	set bool $_settings($what)
1215	SendCmd "axis visible all $bool"
1216	}
1217	"-axislabels" {
1218	set bool $_settings($what)
1219	SendCmd "axis labels all $bool"
1220	}
1221	"-axisminorticks" {
1222	set bool $_settings($what)
1223	SendCmd "axis minticks all $bool"
1224	}
1225	"-axismode" {
1226	set mode [$itk_component(axisMode) value]
1227	set mode [$itk_component(axisMode) translate $mode]
1228	set _settings($what) $mode
1229	SendCmd "axis flymode $mode"
1230	}
1231	"-background" {
1232	set bgcolor [$itk_component(background) value]
1233	array set fgcolors {
1234	"black" "white"
1235	"white" "black"
1236	"grey" "black"
1237	}
1238	configure -plotbackground $bgcolor \
1239	-plotforeground $fgcolors($bgcolor)
1240	$itk_component(view) delete "legend"
1241	DrawLegend
1242	}
1243	"-colormap" {
1244	set _changed($what) 1
1245	StartBufferingCommands
1246	set color [$itk_component(colormap) value]
1247	set _settings($what) $color
1248	if { $color == "none" } {
1249	if { $_settings(-colormapvisible) } {
1250	SendCmd "contour2d colormode constant {}"
1251	SendCmd "polydata colormode constant {}"
1252	set _settings(-colormapvisible) 0
1253	}
1254	} else {
1255	if { !$_settings(-colormapvisible) } {
1256	#SendCmd "contour2d colormode $_colorMode $_curFldName"
1257	SendCmd "polydata colormode $_colorMode $_curFldName"
1258	set _settings(-colormapvisible) 1
1259	}
1260	SetCurrentColormap $color
1261	if {$_settings(-colormapdiscrete)} {
1262	set numColors [expr $_settings(-numcontours) + 1]
1263	SendCmd "colormap res $numColors $color"
1264	}
1265	}
1266	StopBufferingCommands
1267	EventuallyRequestLegend
1268	}
1269	"-colormapdiscrete" {
1270	set bool $_settings($what)
1271	set numColors [expr $_settings(-numcontours) + 1]
1272	StartBufferingCommands
1273	if {$bool} {
1274	SendCmd "colormap res $numColors"
1275	# Discrete colormap requires preinterp on
1276	SendCmd "polydata preinterp on"
1277	} else {
1278	SendCmd "colormap res default"
1279	# FIXME: add setting for preinterp (default on)
1280	SendCmd "polydata preinterp on"
1281	}
1282	StopBufferingCommands
1283	EventuallyRequestLegend
1284	}
1285	"-field" {
1286	set label [$itk_component(field) value]
1287	set fname [$itk_component(field) translate $label]
1288	set _settings($what) $fname
1289	if { [info exists _fields($fname)] } {
1290	foreach { label units components } $_fields($fname) break
1291	if { $components > 1 } {
1292	set _colorMode vmag
1293	} else {
1294	set _colorMode scalar
1295	}
1296	set _curFldName $fname
1297	set _curFldLabel $label
1298	} else {
1299	puts stderr "unknown field \"$fname\""
1300	return
1301	}
1302	SendCmd "dataset scalar $_curFldName"
1303	if { ![info exists _limits($_curFldName)] } {
1304	SendCmd "dataset maprange all"
1305	} else {
1306	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1307	}
1308	#SendCmd "contour2d colormode $_colorMode $_curFldName"
1309	SendCmd "polydata colormode $_colorMode $_curFldName"
1310	UpdateContourList
1311	SendCmd "contour2d contourlist [list $_contourList]"
1312	SendCmd "camera reset"
1313	DrawLegend
1314	}
1315	"-isolinecolor" {
1316	set _changed($what) 1
1317	set color [$itk_component(isolineColor) value]
1318	set _settings($what) $color
1319	SendCmd "contour2d linecolor [Color2RGB $color]"
1320	DrawLegend
1321	}
1322	"-isolinesvisible" {
1323	set _changed($what) 1
1324	set bool $_settings($what)
1325	SendCmd "contour2d visible 0"
1326	if { $bool } {
1327	foreach tag [CurrentDatasets -visible] {
1328	SendCmd "contour2d visible $bool $tag"
1329	}
1330	}
1331	DrawLegend
1332	}
1333	"-legendvisible" {
1334	if { !$_settings($what) } {
1335	$itk_component(view) delete legend
1336	}
1337	DrawLegend
1338	}
1339	"-numcontours" {
1340	set _settings($what) [$itk_component(numcontours) value]
1341	set _currentNumContours $_settings($what)
1342	UpdateContourList
1343	set _changed($what) 1
1344	SendCmd "contour2d contourlist [list $_contourList]"
1345	if {$_settings(-colormapdiscrete)} {
1346	set numColors [expr $_settings($what) + 1]
1347	SendCmd "colormap res $numColors"
1348	EventuallyRequestLegend
1349	} else {
1350	DrawLegend
1351	}
1352	}
1353	"-outline" {
1354	set _changed($what) 1
1355	set bool $_settings($what)
1356	SendCmd "outline visible 0"
1357	if { $bool } {
1358	foreach tag [CurrentDatasets -visible] {
1359	SendCmd "outline visible $bool $tag"
1360	}
1361	}
1362	}
1363	"-surfaceedges" {
1364	set _changed($what) 1
1365	set bool $_settings($what)
1366	SendCmd "polydata edges $bool"
1367	}
1368	"-surfacelighting" {
1369	set _changed($what) 1
1370	set bool $_settings($what)
1371	SendCmd "polydata lighting $bool"
1372	}
1373	"-surfaceopacity" {
1374	set _changed($what) 1
1375	set val $_settings($what)
1376	set sval [expr { 0.01 * double($val) }]
1377	SendCmd "polydata opacity $sval"
1378	}
1379	"-surfacevisible" {
1380	set _changed($what) 1
1381	set bool $_settings($what)
1382	SendCmd "polydata visible 0"
1383	if { $bool } {
1384	foreach tag [CurrentDatasets -visible] {
1385	SendCmd "polydata visible $bool $tag"
1386	}
1387	Rappture::Tooltip::for $itk_component(surface) \
1388	"Hide the surface"
1389	} else {
1390	Rappture::Tooltip::for $itk_component(surface) \
1391	"Show the surface"
1392	}
1393	DrawLegend
1394	}
1395	"-surfacewireframe" {
1396	set _changed($what) 1
1397	set bool $_settings($what)
1398	SendCmd "polydata wireframe $bool"
1399	}
1400	"-xgrid" - "-ygrid" - "-zgrid" {
1401	set axis [string tolower [string range $what 1 1]]
1402	set bool $_settings($what)
1403	SendCmd "axis grid $axis $bool"
1404	}
1405	default {
1406	error "don't know how to fix $what"
1407	}
1408	}
1409	}
1410
1411	#
1412	# RequestLegend --
1413	#
1414	# Request a new legend from the server. The size of the legend
1415	# is determined from the height of the canvas.
1416	#
1417	# This should be called when
1418	# 1. A new current colormap is set.
1419	# 2. Window is resized.
1420	# 3. The limits of the data have changed. (Just need a redraw).
1421	# 4. Number of isolines have changed. (Just need a redraw).
1422	# 5. Legend becomes visible (Just need a redraw).
1423	#
1424	itcl::body Rappture::VtkSurfaceViewer::RequestLegend {} {
1425	set _legendPending 0
1426	if { ![info exists _fields($_curFldName)] } {
1427	return
1428	}
1429	set fname $_curFldName
1430	set font "Arial 8"
1431	set lineht [font metrics $font -linespace]
1432	set w 12
1433	set h [expr {$_height - 2 * ($lineht + 2)}]
1434	if { $h < 1 } {
1435	return
1436	}
1437	if { [string match "component*" $fname] } {
1438	set title ""
1439	} else {
1440	if { [info exists _fields($fname)] } {
1441	foreach { title units } $_fields($fname) break
1442	if { $units != "" } {
1443	set title [format "%s (%s)" $title $units]
1444	}
1445	} else {
1446	set title $fname
1447	}
1448	}
1449	# If there's a title too, subtract one more line
1450	if { $title != "" } {
1451	incr h -$lineht
1452	}
1453	# Set the legend on the first dataset.
1454	if { $_currentColormap != "" } {
1455	set cmap $_currentColormap
1456	if { ![info exists _colormaps($cmap)] } {
1457	BuildColormap $cmap
1458	set _colormaps($cmap) 1
1459	}
1460	#SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1461	SendCmd "legend2 $cmap $w $h"
1462	}
1463	}
1464
1465	# ----------------------------------------------------------------------
1466	# CONFIGURATION OPTION: -plotbackground
1467	# ----------------------------------------------------------------------
1468	itcl::configbody Rappture::VtkSurfaceViewer::plotbackground {
1469	if { [isconnected] } {
1470	set rgb [Color2RGB $itk_option(-plotbackground)]
1471	SendCmd "screen bgcolor $rgb"
1472	}
1473	}
1474
1475	# ----------------------------------------------------------------------
1476	# CONFIGURATION OPTION: -plotforeground
1477	# ----------------------------------------------------------------------
1478	itcl::configbody Rappture::VtkSurfaceViewer::plotforeground {
1479	if { [isconnected] } {
1480	set rgb [Color2RGB $itk_option(-plotforeground)]
1481	SendCmd "axis color all $rgb"
1482	SendCmd "outline color $rgb"
1483	}
1484	}
1485
1486	itcl::body Rappture::VtkSurfaceViewer::BuildSurfaceTab {} {
1487
1488	set fg [option get $itk_component(hull) font Font]
1489	#set bfg [option get $itk_component(hull) boldFont Font]
1490
1491	set inner [$itk_component(main) insert end \
1492	-title "Surface Settings" \
1493	-icon [Rappture::icon volume-on]]
1494	$inner configure -borderwidth 4
1495
1496	checkbutton $inner.surface \
1497	-text "Surface" \
1498	-variable [itcl::scope _settings(-surfacevisible)] \
1499	-command [itcl::code $this AdjustSetting -surfacevisible] \
1500	-font "Arial 9"
1501
1502	checkbutton $inner.isolines \
1503	-text "Isolines" \
1504	-variable [itcl::scope _settings(-isolinesvisible)] \
1505	-command [itcl::code $this AdjustSetting -isolinesvisible] \
1506	-font "Arial 9"
1507
1508	checkbutton $inner.colormapDiscrete \
1509	-text "Discrete Colormap" \
1510	-variable [itcl::scope _settings(-colormapdiscrete)] \
1511	-command [itcl::code $this AdjustSetting -colormapdiscrete] \
1512	-font "Arial 9"
1513
1514	checkbutton $inner.wireframe \
1515	-text "Wireframe" \
1516	-variable [itcl::scope _settings(-surfacewireframe)] \
1517	-command [itcl::code $this AdjustSetting -surfacewireframe] \
1518	-font "Arial 9"
1519
1520	checkbutton $inner.lighting \
1521	-text "Enable Lighting" \
1522	-variable [itcl::scope _settings(-surfacelighting)] \
1523	-command [itcl::code $this AdjustSetting -surfacelighting] \
1524	-font "Arial 9"
1525
1526	checkbutton $inner.edges \
1527	-text "Edges" \
1528	-variable [itcl::scope _settings(-surfaceedges)] \
1529	-command [itcl::code $this AdjustSetting -surfaceedges] \
1530	-font "Arial 9"
1531
1532	checkbutton $inner.outline \
1533	-text "Outline" \
1534	-variable [itcl::scope _settings(-outline)] \
1535	-command [itcl::code $this AdjustSetting -outline] \
1536	-font "Arial 9"
1537
1538	checkbutton $inner.legend \
1539	-text "Legend" \
1540	-variable [itcl::scope _settings(-legendvisible)] \
1541	-command [itcl::code $this AdjustSetting -legendvisible] \
1542	-font "Arial 9"
1543
1544	label $inner.linecolor_l -text "Isolines" -font "Arial 9"
1545	itk_component add isolineColor {
1546	Rappture::Combobox $inner.linecolor -width 10 -editable 0
1547	}
1548	$inner.linecolor choices insert end \
1549	"black" "black" \
1550	"blue" "blue" \
1551	"cyan" "cyan" \
1552	"green" "green" \
1553	"grey" "grey" \
1554	"magenta" "magenta" \
1555	"orange" "orange" \
1556	"red" "red" \
1557	"white" "white" \
1558	"none" "none"
1559
1560	$itk_component(isolineColor) value "white"
1561	bind $inner.linecolor <<Value>> \
1562	[itcl::code $this AdjustSetting -isolinecolor]
1563
1564	label $inner.background_l -text "Background" -font "Arial 9"
1565	itk_component add background {
1566	Rappture::Combobox $inner.background -width 10 -editable 0
1567	}
1568	$inner.background choices insert end \
1569	"black" "black" \
1570	"white" "white" \
1571	"grey" "grey"
1572
1573	$itk_component(background) value $_settings(-background)
1574	bind $inner.background <<Value>> \
1575	[itcl::code $this AdjustSetting -background]
1576
1577	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1578	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1579	-variable [itcl::scope _settings(-surfaceopacity)] \
1580	-width 10 \
1581	-showvalue off \
1582	-command [itcl::code $this AdjustSetting -surfaceopacity]
1583
1584	itk_component add field_l {
1585	label $inner.field_l -text "Field" -font "Arial 9"
1586	} {
1587	ignore -font
1588	}
1589	itk_component add field {
1590	Rappture::Combobox $inner.field -width 10 -editable 0
1591	}
1592	bind $inner.field <<Value>> \
1593	[itcl::code $this AdjustSetting -field]
1594
1595	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1596	itk_component add colormap {
1597	Rappture::Combobox $inner.colormap -width 10 -editable 0
1598	}
1599	$inner.colormap choices insert end [GetColormapList]
1600
1601	$itk_component(colormap) value "BCGYR"
1602	bind $inner.colormap <<Value>> \
1603	[itcl::code $this AdjustSetting -colormap]
1604
1605	label $inner.numcontours_l -text "Number of Isolines" -font "Arial 9"
1606	itk_component add numcontours {
1607	Rappture::Spinint $inner.numcontours \
1608	-min 0 -max 50 -font "arial 9"
1609	}
1610	$itk_component(numcontours) value $_settings(-numcontours)
1611	bind $itk_component(numcontours) <<Value>> \
1612	[itcl::code $this AdjustSetting -numcontours]
1613
1614	blt::table $inner \
1615	0,0 $inner.field_l -anchor w -pady 2 \
1616	0,1 $inner.field -anchor w -pady 2 -fill x \
1617	1,0 $inner.colormap_l -anchor w -pady 2 \
1618	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1619	2,0 $inner.linecolor_l -anchor w -pady 2 \
1620	2,1 $inner.linecolor -anchor w -pady 2 -fill x \
1621	3,0 $inner.background_l -anchor w -pady 2 \
1622	3,1 $inner.background -anchor w -pady 2 -fill x \
1623	4,0 $inner.numcontours_l -anchor w -pady 2 \
1624	4,1 $inner.numcontours -anchor w -pady 2 \
1625	5,0 $inner.colormapDiscrete -anchor w -pady 2 -cspan 2 \
1626	6,0 $inner.isolines -anchor w -pady 2 -cspan 2 \
1627	7,0 $inner.wireframe -anchor w -pady 2 -cspan 2 \
1628	8,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1629	9,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1630	10,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1631	11,0 $inner.legend -anchor w -pady 2 \
1632	12,0 $inner.opacity_l -anchor w -pady 2 \
1633	12,1 $inner.opacity -fill x -pady 2 -fill x \
1634
1635	blt::table configure $inner r* c* -resize none
1636	blt::table configure $inner r13 c1 -resize expand
1637	}
1638
1639	itcl::body Rappture::VtkSurfaceViewer::BuildAxisTab {} {
1640
1641	set fg [option get $itk_component(hull) font Font]
1642	#set bfg [option get $itk_component(hull) boldFont Font]
1643
1644	set inner [$itk_component(main) insert end \
1645	-title "Axis Settings" \
1646	-icon [Rappture::icon axis2]]
1647	$inner configure -borderwidth 4
1648
1649	checkbutton $inner.visible \
1650	-text "Axes" \
1651	-variable [itcl::scope _settings(-axesvisible)] \
1652	-command [itcl::code $this AdjustSetting -axesvisible] \
1653	-font "Arial 9"
1654
1655	checkbutton $inner.labels \
1656	-text "Axis Labels" \
1657	-variable [itcl::scope _settings(-axislabels)] \
1658	-command [itcl::code $this AdjustSetting -axislabels] \
1659	-font "Arial 9"
1660	label $inner.grid_l -text "Grid" -font "Arial 9"
1661	checkbutton $inner.xgrid \
1662	-text "X" \
1663	-variable [itcl::scope _settings(-xgrid)] \
1664	-command [itcl::code $this AdjustSetting -xgrid] \
1665	-font "Arial 9"
1666	checkbutton $inner.ygrid \
1667	-text "Y" \
1668	-variable [itcl::scope _settings(-ygrid)] \
1669	-command [itcl::code $this AdjustSetting -ygrid] \
1670	-font "Arial 9"
1671	checkbutton $inner.zgrid \
1672	-text "Z" \
1673	-variable [itcl::scope _settings(-zgrid)] \
1674	-command [itcl::code $this AdjustSetting -zgrid] \
1675	-font "Arial 9"
1676	checkbutton $inner.minorticks \
1677	-text "Minor Ticks" \
1678	-variable [itcl::scope _settings(-axisminorticks)] \
1679	-command [itcl::code $this AdjustSetting -axisminorticks] \
1680	-font "Arial 9"
1681
1682	label $inner.mode_l -text "Mode" -font "Arial 9"
1683
1684	itk_component add axisMode {
1685	Rappture::Combobox $inner.mode -width 10 -editable 0
1686	}
1687	$inner.mode choices insert end \
1688	"static_triad" "static" \
1689	"closest_triad" "closest" \
1690	"furthest_triad" "farthest" \
1691	"outer_edges" "outer"
1692	$itk_component(axisMode) value $_settings(-axismode)
1693	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1694
1695	blt::table $inner \
1696	0,0 $inner.visible -anchor w -cspan 4 \
1697	1,0 $inner.labels -anchor w -cspan 4 \
1698	2,0 $inner.minorticks -anchor w -cspan 4 \
1699	4,0 $inner.grid_l -anchor w \
1700	4,1 $inner.xgrid -anchor w \
1701	4,2 $inner.ygrid -anchor w \
1702	4,3 $inner.zgrid -anchor w \
1703	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1704	5,1 $inner.mode -fill x -cspan 3
1705
1706	blt::table configure $inner r* c* -resize none
1707	blt::table configure $inner r7 c6 -resize expand
1708	blt::table configure $inner r3 -height 0.125i
1709	}
1710
1711	itcl::body Rappture::VtkSurfaceViewer::BuildCameraTab {} {
1712	set inner [$itk_component(main) insert end \
1713	-title "Camera Settings" \
1714	-icon [Rappture::icon camera]]
1715	$inner configure -borderwidth 4
1716
1717	label $inner.view_l -text "view" -font "Arial 9"
1718	set f [frame $inner.view]
1719	foreach side { front back left right top bottom } {
1720	button $f.$side -image [Rappture::icon view$side] \
1721	-command [itcl::code $this SetOrientation $side]
1722	Rappture::Tooltip::for $f.$side "Change the view to $side"
1723	pack $f.$side -side left
1724	}
1725
1726	blt::table $inner \
1727	0,0 $inner.view_l -anchor e -pady 2 \
1728	0,1 $inner.view -anchor w -pady 2
1729	blt::table configure $inner r0 -resize none
1730
1731	set labels { qx qy qz qw xpan ypan zoom }
1732	set row 1
1733	foreach tag $labels {
1734	label $inner.${tag}label -text $tag -font "Arial 9"
1735	entry $inner.${tag} -font "Arial 9" -bg white \
1736	-textvariable [itcl::scope _view(-$tag)]
1737	bind $inner.${tag} <Return> \
1738	[itcl::code $this camera set -${tag}]
1739	bind $inner.${tag} <KP_Enter> \
1740	[itcl::code $this camera set -${tag}]
1741	blt::table $inner \
1742	$row,0 $inner.${tag}label -anchor e -pady 2 \
1743	$row,1 $inner.${tag} -anchor w -pady 2
1744	blt::table configure $inner r$row -resize none
1745	incr row
1746	}
1747	checkbutton $inner.ortho \
1748	-text "Orthographic Projection" \
1749	-variable [itcl::scope _view(-ortho)] \
1750	-command [itcl::code $this camera set -ortho] \
1751	-font "Arial 9"
1752	blt::table $inner \
1753	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1754	blt::table configure $inner r$row -resize none
1755	incr row
1756
1757	blt::table configure $inner c* -resize none
1758	blt::table configure $inner c2 -resize expand
1759	blt::table configure $inner r$row -resize expand
1760	}
1761
1762	#
1763	# camera --
1764	#
1765	itcl::body Rappture::VtkSurfaceViewer::camera {option args} {
1766	switch -- $option {
1767	"show" {
1768	puts [array get _view]
1769	}
1770	"set" {
1771	set what [lindex $args 0]
1772	set x $_view($what)
1773	set code [catch { string is double $x } result]
1774	if { $code != 0 \|\| !$result } {
1775	return
1776	}
1777	switch -- $what {
1778	"-ortho" {
1779	if {$_view($what)} {
1780	SendCmd "camera mode ortho"
1781	} else {
1782	SendCmd "camera mode persp"
1783	}
1784	}
1785	"-xpan" - "-ypan" {
1786	PanCamera
1787	}
1788	"-qx" - "-qy" - "-qz" - "-qw" {
1789	set q [ViewToQuaternion]
1790	$_arcball quaternion $q
1791	EventuallyRotate $q
1792	}
1793	"-zoom" {
1794	SendCmd "camera zoom $_view($what)"
1795	}
1796	}
1797	}
1798	}
1799	}
1800
1801	itcl::body Rappture::VtkSurfaceViewer::GetVtkData { args } {
1802	set bytes ""
1803	foreach dataobj [get] {
1804	foreach cname [$dataobj components] {
1805	set tag $dataobj-$cname
1806	set contents [$dataobj vtkdata $cname]
1807	append bytes "$contents\n"
1808	}
1809	}
1810	return [list .vtk $bytes]
1811	}
1812
1813	itcl::body Rappture::VtkSurfaceViewer::GetImage { args } {
1814	if { [image width $_image(download)] > 0 &&
1815	[image height $_image(download)] > 0 } {
1816	set bytes [$_image(download) data -format "jpeg -quality 100"]
1817	set bytes [Rappture::encoding::decode -as b64 $bytes]
1818	return [list .jpg $bytes]
1819	}
1820	return ""
1821	}
1822
1823	itcl::body Rappture::VtkSurfaceViewer::BuildDownloadPopup { popup command } {
1824	Rappture::Balloon $popup \
1825	-title "[Rappture::filexfer::label downloadWord] as..."
1826	set inner [$popup component inner]
1827	label $inner.summary -text "" -anchor w
1828	radiobutton $inner.vtk_button -text "VTK data file" \
1829	-variable [itcl::scope _downloadPopup(format)] \
1830	-font "Arial 9 " \
1831	-value vtk
1832	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
1833	radiobutton $inner.image_button -text "Image File" \
1834	-variable [itcl::scope _downloadPopup(format)] \
1835	-font "Arial 9 " \
1836	-value image
1837	Rappture::Tooltip::for $inner.image_button \
1838	"Save as digital image."
1839
1840	button $inner.ok -text "Save" \
1841	-highlightthickness 0 -pady 2 -padx 3 \
1842	-command $command \
1843	-compound left \
1844	-image [Rappture::icon download]
1845
1846	button $inner.cancel -text "Cancel" \
1847	-highlightthickness 0 -pady 2 -padx 3 \
1848	-command [list $popup deactivate] \
1849	-compound left \
1850	-image [Rappture::icon cancel]
1851
1852	blt::table $inner \
1853	0,0 $inner.summary -cspan 2 \
1854	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
1855	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
1856	4,1 $inner.cancel -width .9i -fill y \
1857	4,0 $inner.ok -padx 2 -width .9i -fill y
1858	blt::table configure $inner r3 -height 4
1859	blt::table configure $inner r4 -pady 4
1860	raise $inner.image_button
1861	$inner.vtk_button invoke
1862	return $inner
1863	}
1864
1865	itcl::body Rappture::VtkSurfaceViewer::SetObjectStyle { dataobj comp } {
1866	# Parse style string.
1867	set tag $dataobj-$comp
1868	array set style {
1869	-color BCGYR
1870	-edgecolor black
1871	-edges 0
1872	-isolinecolor white
1873	-isolinesvisible 0
1874	-levels 10
1875	-lighting 1
1876	-linewidth 1.0
1877	-opacity 1.0
1878	-outline 0
1879	-surfacevisible 1
1880	-wireframe 0
1881	}
1882	array set style [$dataobj style $comp]
1883
1884	# This is too complicated. We want to set the colormap, number of
1885	# isolines and opacity for the dataset. They can be the default values,
1886	# the style hints loaded with the dataset, or set by user controls. As
1887	# datasets get loaded, they first use the defaults that are overidden
1888	# by the style hints. If the user changes the global controls, then that
1889	# overrides everything else. I don't know what it means when global
1890	# controls are specified as style hints by each dataset. It complicates
1891	# the code to handle aberrant cases.
1892
1893	if { $_changed(-surfaceedges) } {
1894	set style(-edges) $_settings(-surfaceedges)
1895	}
1896	if { $_changed(-surfacelighting) } {
1897	set style(-lighting) $_settings(-surfacelighting)
1898	}
1899	if { $_changed(-surfaceopacity) } {
1900	set style(-opacity) [expr $_settings(-surfaceopacity) * 0.01]
1901	}
1902	if { $_changed(-surfacewireframe) } {
1903	set style(-wireframe) $_settings(-surfacewireframe)
1904	}
1905	if { $_changed(-numcontours) } {
1906	set style(-levels) $_settings(-numcontours)
1907	}
1908	if { $_changed(-colormap) } {
1909	set style(-color) $_settings(-colormap)
1910	}
1911	if { $_currentColormap == "" } {
1912	SetCurrentColormap $style(-color)
1913	$itk_component(colormap) value $style(-color)
1914	}
1915	if { $_currentNumContours != $style(-levels) } {
1916	set _currentNumContours $style(-levels)
1917	set _settings(-numcontours) $_currentNumContours
1918	$itk_component(numcontours) value $_currentNumContours
1919	UpdateContourList
1920	DrawLegend
1921	}
1922	foreach setting {-outline -isolinesvisible -surfacevisible -isolinecolor} {
1923	if {$_changed($setting)} {
1924	# User-modified UI setting overrides style
1925	set style($setting) $_settings($setting)
1926	} else {
1927	# Set UI control to style setting (tool provided or default)
1928	set _settings($setting) $style($setting)
1929	}
1930	}
1931
1932	SendCmd "outline add $tag"
1933	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
1934	SendCmd "outline visible $style(-outline) $tag"
1935
1936	SendCmd "polydata add $tag"
1937	if { $_curFldName != "" } {
1938	SendCmd "polydata colormode $_colorMode $_curFldName $tag"
1939	}
1940	SendCmd "polydata edges $style(-edges) $tag"
1941	set _settings(-surfaceedges) $style(-edges)
1942	#SendCmd "polydata color [Color2RGB $settings(-color)] $tag"
1943	SendCmd "polydata lighting $style(-lighting) $tag"
1944	set _settings(-surfacelighting) $style(-lighting)
1945	SendCmd "polydata linecolor [Color2RGB $style(-edgecolor)] $tag"
1946	SendCmd "polydata linewidth $style(-linewidth) $tag"
1947	SendCmd "polydata opacity $style(-opacity) $tag"
1948	set _settings(-surfaceopacity) [expr $style(-opacity) * 100.0]
1949	SetCurrentColormap $style(-color)
1950	SendCmd "polydata wireframe $style(-wireframe) $tag"
1951	set _settings(-surfacewireframe) $style(-wireframe)
1952
1953	SendCmd [list contour2d add contourlist $_contourList $tag]
1954	SendCmd "contour2d colormode constant {} $tag"
1955	SendCmd "contour2d color [Color2RGB $style(-isolinecolor)] $tag"
1956	}
1957
1958	itcl::body Rappture::VtkSurfaceViewer::IsValidObject { dataobj } {
1959	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
1960	return 0
1961	}
1962	return 1
1963	}
1964
1965	#
1966	# EnterLegend --
1967	#
1968	itcl::body Rappture::VtkSurfaceViewer::EnterLegend { x y } {
1969	SetLegendTip $x $y
1970	}
1971
1972	#
1973	# MotionLegend --
1974	#
1975	itcl::body Rappture::VtkSurfaceViewer::MotionLegend { x y } {
1976	Rappture::Tooltip::tooltip cancel
1977	set c $itk_component(view)
1978	set cw [winfo width $c]
1979	set ch [winfo height $c]
1980	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
1981	SetLegendTip $x $y
1982	}
1983	}
1984
1985	#
1986	# LeaveLegend --
1987	#
1988	itcl::body Rappture::VtkSurfaceViewer::LeaveLegend { } {
1989	Rappture::Tooltip::tooltip cancel
1990	.rappturetooltip configure -icon ""
1991	}
1992
1993	#
1994	# SetLegendTip --
1995	#
1996	itcl::body Rappture::VtkSurfaceViewer::SetLegendTip { x y } {
1997	set fname $_curFldName
1998	set c $itk_component(view)
1999	set w [winfo width $c]
2000	set h [winfo height $c]
2001
2002	set font "Arial 8"
2003	set lineht [font metrics $font -linespace]
2004
2005	set ih [image height $_image(legend)]
2006	set iy [expr $y - ($lineht + 2)]
2007
2008	if { [string match "component*" $fname] } {
2009	set title ""
2010	} else {
2011	if { [info exists _fields($fname)] } {
2012	foreach { title units } $_fields($fname) break
2013	if { $units != "" } {
2014	set title [format "%s (%s)" $title $units]
2015	}
2016	} else {
2017	set title $fname
2018	}
2019	}
2020	# If there's a legend title, increase the offset by the line height.
2021	if { $title != "" } {
2022	incr iy -$lineht
2023	}
2024	# Make a swatch of the selected color
2025	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2026	return
2027	}
2028	if { ![info exists _image(swatch)] } {
2029	set _image(swatch) [image create photo -width 24 -height 24]
2030	}
2031	set color [eval format "\#%02x%02x%02x" $pixel]
2032	$_image(swatch) put black -to 0 0 23 23
2033	$_image(swatch) put $color -to 1 1 22 22
2034	.rappturetooltip configure -icon $_image(swatch)
2035
2036	# Compute the value of the point
2037	if { [info exists _limits($_curFldName)] } {
2038	foreach { vmin vmax } $_limits($_curFldName) break
2039	set t [expr 1.0 - (double($iy) / double($ih-1))]
2040	set value [expr $t * ($vmax - $vmin) + $vmin]
2041	} else {
2042	set value 0.0
2043	}
2044	set tx [expr $x + 15]
2045	set ty [expr $y - 5]
2046	if { [info exists _isolines($y)] } {
2047	Rappture::Tooltip::text $c [format "$title %g (isoline)" $_isolines($y)]
2048	} else {
2049	Rappture::Tooltip::text $c [format "$title %g" $value]
2050	}
2051	Rappture::Tooltip::tooltip show $c +$tx,+$ty
2052	}
2053
2054	#
2055	# ReceiveLegend --
2056	#
2057	# Invoked automatically whenever the "legend" command comes in from
2058	# the rendering server. Indicates that binary image data with the
2059	# specified <size> will follow.
2060	#
2061	itcl::body Rappture::VtkSurfaceViewer::ReceiveLegend { colormap title min max size } {
2062	DebugTrace "Enter"
2063	set _title $title
2064	regsub {\(mag\)} $title "" _title
2065	if { [IsConnected] } {
2066	set bytes [ReceiveBytes $size]
2067	if { ![info exists _image(legend)] } {
2068	set _image(legend) [image create photo]
2069	}
2070	$_image(legend) configure -data $bytes
2071	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2072	if { [catch {DrawLegend} errs] != 0 } {
2073	global errorInfo
2074	puts stderr "errs=$errs errorInfo=$errorInfo"
2075	}
2076	}
2077	}
2078
2079	#
2080	# DrawLegend --
2081	#
2082	# Draws the legend on the canvas on the right side of the plot area.
2083	#
2084	itcl::body Rappture::VtkSurfaceViewer::DrawLegend {} {
2085	set fname $_curFldName
2086	set c $itk_component(view)
2087	set w [winfo width $c]
2088	set h [winfo height $c]
2089	set font "Arial 8"
2090	set lineht [font metrics $font -linespace]
2091
2092	if { [string match "component*" $fname] } {
2093	set title ""
2094	} else {
2095	if { [info exists _fields($fname)] } {
2096	foreach { title units } $_fields($fname) break
2097	if { $units != "" } {
2098	set title [format "%s (%s)" $title $units]
2099	}
2100	} else {
2101	set title $fname
2102	}
2103	}
2104	set x [expr $w - 2]
2105	if { !$_settings(-legendvisible) } {
2106	$c delete legend
2107	return
2108	}
2109	if { [$c find withtag "legend"] == "" } {
2110	set y 2
2111	# If there's a legend title, create a text item for the title.
2112	$c create text $x $y \
2113	-anchor ne \
2114	-fill $itk_option(-plotforeground) -tags "title legend" \
2115	-font $font
2116	if { $title != "" } {
2117	incr y $lineht
2118	}
2119	$c create text $x $y \
2120	-anchor ne \
2121	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2122	-font $font
2123	incr y $lineht
2124	$c create image $x $y \
2125	-anchor ne \
2126	-image $_image(legend) -tags "colormap legend"
2127	$c create rectangle $x $y 1 1 \
2128	-fill "" -outline "" -tags "sensor legend"
2129	$c create text $x [expr {$h-2}] \
2130	-anchor se \
2131	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2132	-font $font
2133	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2134	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2135	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2136	}
2137	$c delete isoline
2138	set x2 $x
2139	set iw [image width $_image(legend)]
2140	set ih [image height $_image(legend)]
2141	set x1 [expr $x2 - ($iw*12)/10]
2142	set color $_settings(-isolinecolor)
2143	# Draw the isolines on the legend.
2144	array unset _isolines
2145	if { $color != "none" && [info exists _limits($_curFldName)] &&
2146	$_settings(-isolinesvisible) && $_settings(-numcontours) > 0 } {
2147
2148	foreach { vmin vmax } $_limits($_curFldName) break
2149	set range [expr double($vmax - $vmin)]
2150	if { $range <= 0.0 } {
2151	set range 1.0; # Min is greater or equal to max.
2152	}
2153	set tags "isoline legend"
2154	set offset [expr 2 + $lineht]
2155	if { $title != "" } {
2156	incr offset $lineht
2157	}
2158	foreach value $_contourList {
2159	set norm [expr 1.0 - (($value - $vmin) / $range)]
2160	set y1 [expr int(round(($norm * $ih) + $offset))]
2161	for { set off 0 } { $off < 3 } { incr off } {
2162	set _isolines([expr $y1 + $off]) $value
2163	set _isolines([expr $y1 - $off]) $value
2164	}
2165	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2166	}
2167	}
2168
2169	$c bind title <ButtonPress> [itcl::code $this Combo post]
2170	$c bind title <Enter> [itcl::code $this Combo activate]
2171	$c bind title <Leave> [itcl::code $this Combo deactivate]
2172	# Reset the item coordinates according the current size of the plot.
2173	$c itemconfigure title -text $title
2174	if { [info exists _limits($_curFldName)] } {
2175	foreach { vmin vmax } $_limits($_curFldName) break
2176	$c itemconfigure vmin -text [format %g $vmin]
2177	$c itemconfigure vmax -text [format %g $vmax]
2178	}
2179	set y 2
2180	# If there's a legend title, move the title to the correct position
2181	if { $title != "" } {
2182	$c itemconfigure title -text $title
2183	$c coords title $x $y
2184	incr y $lineht
2185	$c raise title
2186	}
2187	$c coords vmax $x $y
2188	incr y $lineht
2189	$c coords colormap $x $y
2190	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2191	$c raise sensor
2192	$c coords vmin $x [expr {$h - 2}]
2193	}
2194
2195	# ----------------------------------------------------------------------
2196	# USAGE: _dropdown post
2197	# USAGE: _dropdown unpost
2198	# USAGE: _dropdown select
2199	#
2200	# Used internally to handle the dropdown list for this combobox. The
2201	# post/unpost options are invoked when the list is posted or unposted
2202	# to manage the relief of the controlling button. The select option
2203	# is invoked whenever there is a selection from the list, to assign
2204	# the value back to the gauge.
2205	# ----------------------------------------------------------------------
2206	itcl::body Rappture::VtkSurfaceViewer::Combo {option} {
2207	set c $itk_component(view)
2208	switch -- $option {
2209	post {
2210	foreach { x1 y1 x2 y2 } [$c bbox title] break
2211	set cw [winfo width $itk_component(view)]
2212	set mw [winfo reqwidth $itk_component(fieldmenu)]
2213	set x1 [expr $cw - $mw]
2214	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2215	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2216	tk_popup $itk_component(fieldmenu) $x $y
2217	}
2218	activate {
2219	$c itemconfigure title -fill red
2220	}
2221	deactivate {
2222	$c itemconfigure title -fill $itk_option(-plotforeground)
2223	}
2224	invoke {
2225	$itk_component(field) value $_curFldLabel
2226	AdjustSetting -field
2227	}
2228	default {
2229	error "bad option \"$option\": should be post, unpost, select"
2230	}
2231	}
2232	}
2233
2234	#
2235	# SetCurrentColormap --
2236	#
2237	itcl::body Rappture::VtkSurfaceViewer::SetCurrentColormap { name } {
2238	# Keep track of the colormaps that we build.
2239	if { ![info exists _colormaps($name)] } {
2240	BuildColormap $name
2241	set _colormaps($name) 1
2242	}
2243	set _currentColormap $name
2244	SendCmd "contour2d colormap $_currentColormap"
2245	SendCmd "polydata colormap $_currentColormap"
2246	}
2247
2248	#
2249	# BuildColormap --
2250	#
2251	# Build the designated colormap on the server.
2252	#
2253	itcl::body Rappture::VtkSurfaceViewer::BuildColormap { name } {
2254	set cmap [ColorsToColormap $name]
2255	if { [llength $cmap] == 0 } {
2256	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
2257	}
2258	set amap "0.0 1.0 1.0 1.0"
2259	SendCmd "colormap add $name { $cmap } { $amap }"
2260	}
2261
2262	itcl::body Rappture::VtkSurfaceViewer::SetOrientation { side } {
2263	array set positions {
2264	front "1 0 0 0"
2265	back "0 0 1 0"
2266	left "0.707107 0 -0.707107 0"
2267	right "0.707107 0 0.707107 0"
2268	top "0.707107 -0.707107 0 0"
2269	bottom "0.707107 0.707107 0 0"
2270	}
2271	foreach name { -qw -qx -qy -qz } value $positions($side) {
2272	set _view($name) $value
2273	}
2274	set q [ViewToQuaternion]
2275	$_arcball quaternion $q
2276	SendCmd "camera orient $q"
2277	SendCmd "camera reset"
2278	set _view(-xpan) 0
2279	set _view(-ypan) 0
2280	set _view(-zoom) 1.0
2281	}
2282
2283	itcl::body Rappture::VtkSurfaceViewer::UpdateContourList {} {
2284	if { ![info exists _limits($_curFldName)] } {
2285	return
2286	}
2287	if { $_currentNumContours < 1 } {
2288	set _contourList ""
2289	return
2290	}
2291	foreach { vmin vmax } $_limits($_curFldName) break
2292	set v [blt::vector create \#auto]
2293	$v seq $vmin $vmax [expr $_currentNumContours+2]
2294	$v delete end 0
2295	set _contourList [$v range 0 end]
2296	blt::vector destroy $v
2297	}
2298
2299	itcl::body Rappture::VtkSurfaceViewer::SetCurrentFieldName { dataobj } {
2300	set _first $dataobj
2301	$itk_component(field) choices delete 0 end
2302	$itk_component(fieldmenu) delete 0 end
2303	array unset _fields
2304	set _curFldName ""
2305	foreach cname [$_first components] {
2306	foreach fname [$_first fieldnames $cname] {
2307	if { [info exists _fields($fname)] } {
2308	continue
2309	}
2310	foreach { label units components } \
2311	[$_first fieldinfo $fname] break
2312	$itk_component(field) choices insert end "$fname" "$label"
2313	$itk_component(fieldmenu) add radiobutton -label "$label" \
2314	-value $label -variable [itcl::scope _curFldLabel] \
2315	-selectcolor red \
2316	-activebackground $itk_option(-plotbackground) \
2317	-activeforeground $itk_option(-plotforeground) \
2318	-font "Arial 8" \
2319	-command [itcl::code $this Combo invoke]
2320	set _fields($fname) [list $label $units $components]
2321	if { $_curFldName == "" } {
2322	set _curFldName $fname
2323	set _curFldLabel $label
2324	}
2325	}
2326	}
2327	$itk_component(field) value $_curFldLabel
2328	}

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