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source: branches/1.3/gui/scripts/vtkmeshviewer.tcl @ 4759

Last change on this file since 4759 was 4759, checked in by ldelgass, 10 years ago
merge r4756:4758 from trunk
File size: 54.6 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkmeshviewer - Vtk mesh 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 *VtkMeshViewer.width 4i widgetDefault
19	option add VtkMeshViewercursor crosshair widgetDefault
20	option add *VtkMeshViewer.height 4i widgetDefault
21	option add *VtkMeshViewer.foreground black widgetDefault
22	option add *VtkMeshViewer.controlBackground gray widgetDefault
23	option add *VtkMeshViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkMeshViewer.plotBackground black widgetDefault
25	option add *VtkMeshViewer.plotForeground white widgetDefault
26	option add *VtkMeshViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkMeshViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkMeshViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkMeshViewer {
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 limits { dataobj }
60	public method parameters {title args} {
61	# do nothing
62	}
63	public method scale {args}
64
65	protected method Connect {}
66	protected method CurrentDatasets {args}
67	protected method Disconnect {}
68	protected method DoResize {}
69	protected method DoRotate {}
70	protected method AdjustSetting {what {value ""}}
71	protected method InitSettings { args }
72	protected method Pan {option x y}
73	protected method Pick {x y}
74	protected method Rebuild {}
75	protected method ReceiveDataset { args }
76	protected method ReceiveImage { args }
77	protected method Rotate {option x y}
78	protected method Zoom {option}
79
80	# The following methods are only used by this class.
81	private method BuildAxisTab {}
82	private method BuildCameraTab {}
83	private method BuildDownloadPopup { widget command }
84	private method BuildPolydataTab {}
85	private method EventuallyResize { w h }
86	private method EventuallyRotate { q }
87	private method EventuallySetPolydataOpacity {}
88	private method GetImage { args }
89	private method GetVtkData { args }
90	private method IsValidObject { dataobj }
91	private method PanCamera {}
92	private method SetObjectStyle { dataobj }
93	private method SetOrientation { side }
94	private method SetPolydataOpacity {}
95
96	private variable _arcball ""
97	private variable _dlist ""; # list of data objects
98	private variable _obj2datasets
99	private variable _obj2ovride; # maps dataobj => style override
100	private variable _datasets; # contains all the dataobj-component
101	# datasets in the server
102	private variable _dataset2style; # maps dataobj-component to transfunc
103	private variable _style2datasets; # maps tf back to list of
104	# dataobj-components using the tf.
105	private variable _click; # info used for rotate operations
106	private variable _limits; # autoscale min/max for all axes
107	private variable _view; # view params for 3D view
108	private variable _settings
109	private variable _widget
110	private variable _style; # Array of current component styles.
111	private variable _initialStyle; # Array of initial component styles.
112	private variable _reset 1; # Indicates that server was reset and
113	# needs to be reinitialized.
114
115	private variable _first ""; # This is the topmost dataset.
116	private variable _start 0
117	private variable _title ""
118
119	common _downloadPopup; # download options from popup
120	private common _hardcopy
121	private variable _width 0
122	private variable _height 0
123	private variable _resizePending 0
124	private variable _rotatePending 0
125	private variable _polydataOpacityPending 0
126	private variable _rotateDelay 150
127	private variable _opacityDelay 150
128	}
129
130	itk::usual VtkMeshViewer {
131	keep -background -foreground -cursor -font
132	keep -plotbackground -plotforeground
133	}
134
135	# ----------------------------------------------------------------------
136	# CONSTRUCTOR
137	# ----------------------------------------------------------------------
138	itcl::body Rappture::VtkMeshViewer::constructor {hostlist args} {
139	package require vtk
140	set _serverType "vtkvis"
141
142	# Rebuild event
143	$_dispatcher register !rebuild
144	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
145
146	# Resize event
147	$_dispatcher register !resize
148	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
149
150	# Rotate event
151	$_dispatcher register !rotate
152	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
153
154	# Polydata opacity event
155	$_dispatcher register !polydataOpacity
156	$_dispatcher dispatch $this !polydataOpacity \
157	"[itcl::code $this SetPolydataOpacity]; list"
158	#
159	# Populate parser with commands handle incoming requests
160	#
161	$_parser alias image [itcl::code $this ReceiveImage]
162	$_parser alias dataset [itcl::code $this ReceiveDataset]
163
164	# Initialize the view to some default parameters.
165	array set _view {
166	qw 0.853553
167	qx -0.353553
168	qy 0.353553
169	qz 0.146447
170	zoom 1.0
171	xpan 0
172	ypan 0
173	ortho 0
174	}
175	set _arcball [blt::arcball create 100 100]
176	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
177	$_arcball quaternion $q
178
179	set _limits(zmin) 0.0
180	set _limits(zmax) 1.0
181
182	array set _settings {
183	-axesvisible 1
184	-axislabels 1
185	-axisminorticks 1
186	-outline 0
187	-polydataedges 0
188	-polydatalighting 1
189	-polydataopacity 1.0
190	-polydatavisible 1
191	-polydatawireframe 0
192	-xgrid 0
193	-ygrid 0
194	-zgrid 0
195	}
196	array set _widget {
197	-polydataopacity 100
198	}
199	itk_component add view {
200	canvas $itk_component(plotarea).view \
201	-highlightthickness 0 -borderwidth 0
202	} {
203	usual
204	ignore -highlightthickness -borderwidth -background
205	}
206
207	itk_component add fieldmenu {
208	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
209	-tearoff no
210	} {
211	usual
212	ignore -background -foreground -relief -tearoff
213	}
214
215	set c $itk_component(view)
216	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
217	bind $c <4> [itcl::code $this Zoom in 0.25]
218	bind $c <5> [itcl::code $this Zoom out 0.25]
219	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
220	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
221	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
222	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
223	bind $c <Enter> "focus %W"
224	bind $c <Control-F1> [itcl::code $this ToggleConsole]
225
226	# Fix the scrollregion in case we go off screen
227	$c configure -scrollregion [$c bbox all]
228
229	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
230	set _map(cwidth) -1
231	set _map(cheight) -1
232	set _map(zoom) 1.0
233	set _map(original) ""
234
235	set f [$itk_component(main) component controls]
236	itk_component add reset {
237	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
238	-highlightthickness 0 \
239	-image [Rappture::icon reset-view] \
240	-command [itcl::code $this Zoom reset]
241	} {
242	usual
243	ignore -highlightthickness
244	}
245	pack $itk_component(reset) -side top -padx 2 -pady 2
246	Rappture::Tooltip::for $itk_component(reset) \
247	"Reset the view to the default zoom level"
248
249	itk_component add zoomin {
250	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
251	-highlightthickness 0 \
252	-image [Rappture::icon zoom-in] \
253	-command [itcl::code $this Zoom in]
254	} {
255	usual
256	ignore -highlightthickness
257	}
258	pack $itk_component(zoomin) -side top -padx 2 -pady 2
259	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
260
261	itk_component add zoomout {
262	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
263	-highlightthickness 0 \
264	-image [Rappture::icon zoom-out] \
265	-command [itcl::code $this Zoom out]
266	} {
267	usual
268	ignore -highlightthickness
269	}
270	pack $itk_component(zoomout) -side top -padx 2 -pady 2
271	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
272
273	BuildPolydataTab
274	BuildAxisTab
275	BuildCameraTab
276
277	# Hack around the Tk panewindow. The problem is that the requested
278	# size of the 3d view isn't set until an image is retrieved from
279	# the server. So the panewindow uses the tiny size.
280	set w 10000
281	pack forget $itk_component(view)
282	blt::table $itk_component(plotarea) \
283	0,0 $itk_component(view) -fill both -reqwidth $w
284	blt::table configure $itk_component(plotarea) c1 -resize none
285
286	# Bindings for rotation via mouse
287	bind $itk_component(view) <ButtonPress-1> \
288	[itcl::code $this Rotate click %x %y]
289	bind $itk_component(view) <B1-Motion> \
290	[itcl::code $this Rotate drag %x %y]
291	bind $itk_component(view) <ButtonRelease-1> \
292	[itcl::code $this Rotate release %x %y]
293	bind $itk_component(view) <Configure> \
294	[itcl::code $this EventuallyResize %w %h]
295
296	# Bindings for panning via mouse
297	bind $itk_component(view) <ButtonPress-2> \
298	[itcl::code $this Pan click %x %y]
299	bind $itk_component(view) <B2-Motion> \
300	[itcl::code $this Pan drag %x %y]
301	bind $itk_component(view) <ButtonRelease-2> \
302	[itcl::code $this Pan release %x %y]
303
304	#bind $itk_component(view) <ButtonRelease-3> \
305	# [itcl::code $this Pick %x %y]
306
307	# Bindings for panning via keyboard
308	bind $itk_component(view) <KeyPress-Left> \
309	[itcl::code $this Pan set -10 0]
310	bind $itk_component(view) <KeyPress-Right> \
311	[itcl::code $this Pan set 10 0]
312	bind $itk_component(view) <KeyPress-Up> \
313	[itcl::code $this Pan set 0 -10]
314	bind $itk_component(view) <KeyPress-Down> \
315	[itcl::code $this Pan set 0 10]
316	bind $itk_component(view) <Shift-KeyPress-Left> \
317	[itcl::code $this Pan set -2 0]
318	bind $itk_component(view) <Shift-KeyPress-Right> \
319	[itcl::code $this Pan set 2 0]
320	bind $itk_component(view) <Shift-KeyPress-Up> \
321	[itcl::code $this Pan set 0 -2]
322	bind $itk_component(view) <Shift-KeyPress-Down> \
323	[itcl::code $this Pan set 0 2]
324
325	# Bindings for zoom via keyboard
326	bind $itk_component(view) <KeyPress-Prior> \
327	[itcl::code $this Zoom out]
328	bind $itk_component(view) <KeyPress-Next> \
329	[itcl::code $this Zoom in]
330
331	bind $itk_component(view) <Enter> "focus $itk_component(view)"
332
333	if {[string equal "x11" [tk windowingsystem]]} {
334	# Bindings for zoom via mouse
335	bind $itk_component(view) <4> [itcl::code $this Zoom out]
336	bind $itk_component(view) <5> [itcl::code $this Zoom in]
337	}
338
339	set _image(download) [image create photo]
340
341	eval itk_initialize $args
342	Connect
343	}
344
345	# ----------------------------------------------------------------------
346	# DESTRUCTOR
347	# ----------------------------------------------------------------------
348	itcl::body Rappture::VtkMeshViewer::destructor {} {
349	Disconnect
350	$_dispatcher cancel !rebuild
351	$_dispatcher cancel !resize
352	$_dispatcher cancel !rotate
353	image delete $_image(plot)
354	image delete $_image(download)
355	catch { blt::arcball destroy $_arcball }
356	}
357
358	itcl::body Rappture::VtkMeshViewer::DoResize {} {
359	if { $_width < 2 } {
360	set _width 500
361	}
362	if { $_height < 2 } {
363	set _height 500
364	}
365	set _start [clock clicks -milliseconds]
366	SendCmd "screen size $_width $_height"
367
368	set _resizePending 0
369	}
370
371	itcl::body Rappture::VtkMeshViewer::DoRotate {} {
372	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
373	SendCmd "camera orient $q"
374	set _rotatePending 0
375	}
376
377	itcl::body Rappture::VtkMeshViewer::EventuallyResize { w h } {
378	set _width $w
379	set _height $h
380	$_arcball resize $w $h
381	if { !$_resizePending } {
382	set _resizePending 1
383	$_dispatcher event -after 200 !resize
384	}
385	}
386
387	itcl::body Rappture::VtkMeshViewer::EventuallyRotate { q } {
388	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
389	if { !$_rotatePending } {
390	set _rotatePending 1
391	$_dispatcher event -after $_rotateDelay !rotate
392	}
393	}
394
395	itcl::body Rappture::VtkMeshViewer::SetPolydataOpacity {} {
396	set _polydataOpacityPending 0
397	set val $_settings(-polydataopacity)
398	SendCmd "polydata opacity $val"
399	}
400
401	itcl::body Rappture::VtkMeshViewer::EventuallySetPolydataOpacity {} {
402	if { !$_polydataOpacityPending } {
403	set _polydataOpacityPending 1
404	$_dispatcher event -after $_opacityDelay !polydataOpacity
405	}
406	}
407
408	# ----------------------------------------------------------------------
409	# USAGE: add <dataobj> ?<settings>?
410	#
411	# Clients use this to add a data object to the plot. The optional
412	# <settings> are used to configure the plot. Allowed settings are
413	# -color, -brightness, -width, -linestyle, and -raise.
414	# ----------------------------------------------------------------------
415	itcl::body Rappture::VtkMeshViewer::add {dataobj {settings ""}} {
416	array set params {
417	-color auto
418	-width 1
419	-linestyle solid
420	-brightness 0
421	-raise 0
422	-description ""
423	-param ""
424	-type ""
425	}
426	array set params $settings
427	set params(-description) ""
428	set params(-param) ""
429	array set params $settings
430
431	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
432	# can't handle -autocolors yet
433	set params(-color) black
434	}
435	set pos [lsearch -exact $_dlist $dataobj]
436	if {$pos < 0} {
437	lappend _dlist $dataobj
438	}
439	set _obj2ovride($dataobj-color) $params(-color)
440	set _obj2ovride($dataobj-width) $params(-width)
441	set _obj2ovride($dataobj-raise) $params(-raise)
442	$_dispatcher event -idle !rebuild
443	}
444
445	# ----------------------------------------------------------------------
446	# USAGE: delete ?<dataobj1> <dataobj2> ...?
447	#
448	# Clients use this to delete a dataobj from the plot. If no dataobjs
449	# are specified, then all dataobjs are deleted. No data objects are
450	# deleted. They are only removed from the display list.
451	#
452	# ----------------------------------------------------------------------
453	itcl::body Rappture::VtkMeshViewer::delete {args} {
454	if { [llength $args] == 0} {
455	set args $_dlist
456	}
457	# Delete all specified dataobjs
458	set changed 0
459	foreach dataobj $args {
460	set pos [lsearch -exact $_dlist $dataobj]
461	if { $pos < 0 } {
462	continue; # Don't know anything about it.
463	}
464	# Remove it from the dataobj list.
465	set _dlist [lreplace $_dlist $pos $pos]
466	array unset _obj2ovride $dataobj-*
467	set changed 1
468	}
469	# If anything changed, then rebuild the plot
470	if { $changed } {
471	$_dispatcher event -idle !rebuild
472	}
473	}
474
475	# ----------------------------------------------------------------------
476	# USAGE: get ?-objects?
477	# USAGE: get ?-visible?
478	# USAGE: get ?-image view?
479	#
480	# Clients use this to query the list of objects being plotted, in
481	# order from bottom to top of this result. The optional "-image"
482	# flag can also request the internal images being shown.
483	# ----------------------------------------------------------------------
484	itcl::body Rappture::VtkMeshViewer::get {args} {
485	if {[llength $args] == 0} {
486	set args "-objects"
487	}
488
489	set op [lindex $args 0]
490	switch -- $op {
491	"-objects" {
492	# put the dataobj list in order according to -raise options
493	set dlist {}
494	foreach dataobj $_dlist {
495	if { ![IsValidObject $dataobj] } {
496	continue
497	}
498	if {[info exists _obj2ovride($dataobj-raise)] &&
499	$_obj2ovride($dataobj-raise)} {
500	set dlist [linsert $dlist 0 $dataobj]
501	} else {
502	lappend dlist $dataobj
503	}
504	}
505	return $dlist
506	}
507	"-visible" {
508	set dlist {}
509	foreach dataobj $_dlist {
510	if { ![IsValidObject $dataobj] } {
511	continue
512	}
513	if { ![info exists _obj2ovride($dataobj-raise)] } {
514	# No setting indicates that the object isn't visible.
515	continue
516	}
517	# Otherwise use the -raise parameter to put the object to
518	# the front of the list.
519	if { $_obj2ovride($dataobj-raise) } {
520	set dlist [linsert $dlist 0 $dataobj]
521	} else {
522	lappend dlist $dataobj
523	}
524	}
525	return $dlist
526	}
527	-image {
528	if {[llength $args] != 2} {
529	error "wrong # args: should be \"get -image view\""
530	}
531	switch -- [lindex $args end] {
532	view {
533	return $_image(plot)
534	}
535	default {
536	error "bad image name \"[lindex $args end]\": should be view"
537	}
538	}
539	}
540	default {
541	error "bad option \"$op\": should be -objects or -image"
542	}
543	}
544	}
545
546	# ----------------------------------------------------------------------
547	# USAGE: scale ?<data1> <data2> ...?
548	#
549	# Sets the default limits for the overall plot according to the
550	# limits of the data for all of the given <data> objects. This
551	# accounts for all objects--even those not showing on the screen.
552	# Because of this, the limits are appropriate for all objects as
553	# the user scans through data in the ResultSet viewer.
554	# ----------------------------------------------------------------------
555	itcl::body Rappture::VtkMeshViewer::scale {args} {
556	foreach dataobj $args {
557	array set bounds [limits $dataobj]
558	if {![info exists _limits(xmin)] \|\| $_limits(xmin) > $bounds(xmin)} {
559	set _limits(xmin) $bounds(xmin)
560	}
561	if {![info exists _limits(xmax)] \|\| $_limits(xmax) < $bounds(xmax)} {
562	set _limits(xmax) $bounds(xmax)
563	}
564
565	if {![info exists _limits(ymin)] \|\| $_limits(ymin) > $bounds(ymin)} {
566	set _limits(ymin) $bounds(ymin)
567	}
568	if {![info exists _limits(ymax)] \|\| $_limits(ymax) < $bounds(ymax)} {
569	set _limits(ymax) $bounds(ymax)
570	}
571
572	if {![info exists _limits(zmin)] \|\| $_limits(zmin) > $bounds(zmin)} {
573	set _limits(zmin) $bounds(zmin)
574	}
575	if {![info exists _limits(zmax)] \|\| $_limits(zmax) < $bounds(zmax)} {
576	set _limits(zmax) $bounds(zmax)
577	}
578	}
579	}
580
581	# ----------------------------------------------------------------------
582	# USAGE: download coming
583	# USAGE: download controls <downloadCommand>
584	# USAGE: download now
585	#
586	# Clients use this method to create a downloadable representation
587	# of the plot. Returns a list of the form {ext string}, where
588	# "ext" is the file extension (indicating the type of data) and
589	# "string" is the data itself.
590	# ----------------------------------------------------------------------
591	itcl::body Rappture::VtkMeshViewer::download {option args} {
592	switch $option {
593	coming {
594	if {[catch {
595	blt::winop snap $itk_component(plotarea) $_image(download)
596	}]} {
597	$_image(download) configure -width 1 -height 1
598	$_image(download) put #000000
599	}
600	}
601	controls {
602	set popup .vtkviewerdownload
603	if { ![winfo exists .vtkviewerdownload] } {
604	set inner [BuildDownloadPopup $popup [lindex $args 0]]
605	} else {
606	set inner [$popup component inner]
607	}
608	set _downloadPopup(image_controls) $inner.image_frame
609	set num [llength [get]]
610	set num [expr {($num == 1) ? "1 result" : "$num results"}]
611	set word [Rappture::filexfer::label downloadWord]
612	$inner.summary configure -text "$word $num in the following format:"
613	update idletasks ;# Fix initial sizes
614	return $popup
615	}
616	now {
617	set popup .vtkviewerdownload
618	if {[winfo exists .vtkviewerdownload]} {
619	$popup deactivate
620	}
621	switch -- $_downloadPopup(format) {
622	"image" {
623	return [$this GetImage [lindex $args 0]]
624	}
625	"vtk" {
626	return [$this GetVtkData [lindex $args 0]]
627	}
628	}
629	return ""
630	}
631	default {
632	error "bad option \"$option\": should be coming, controls, now"
633	}
634	}
635	}
636
637	# ----------------------------------------------------------------------
638	# USAGE: Connect ?<host:port>,<host:port>...?
639	#
640	# Clients use this method to establish a connection to a new
641	# server, or to reestablish a connection to the previous server.
642	# Any existing connection is automatically closed.
643	# ----------------------------------------------------------------------
644	itcl::body Rappture::VtkMeshViewer::Connect {} {
645	global readyForNextFrame
646	set readyForNextFrame 1
647	set _hosts [GetServerList "vtkvis"]
648	if { "" == $_hosts } {
649	return 0
650	}
651	set result [VisViewer::Connect $_hosts]
652	if { $result } {
653	if { $_reportClientInfo } {
654	# Tell the server the viewer, hub, user and session.
655	# Do this immediately on connect before buffering any commands
656	global env
657
658	set info {}
659	set user "???"
660	if { [info exists env(USER)] } {
661	set user $env(USER)
662	}
663	set session "???"
664	if { [info exists env(SESSION)] } {
665	set session $env(SESSION)
666	}
667	lappend info "version" "$Rappture::version"
668	lappend info "build" "$Rappture::build"
669	lappend info "svnurl" "$Rappture::svnurl"
670	lappend info "installdir" "$Rappture::installdir"
671	lappend info "hub" [exec hostname]
672	lappend info "client" "vtkmeshviewer"
673	lappend info "user" $user
674	lappend info "session" $session
675	SendCmd "clientinfo [list $info]"
676	}
677
678	set w [winfo width $itk_component(view)]
679	set h [winfo height $itk_component(view)]
680	EventuallyResize $w $h
681	}
682	return $result
683	}
684
685	#
686	# isconnected --
687	#
688	# Indicates if we are currently connected to the visualization server.
689	#
690	itcl::body Rappture::VtkMeshViewer::isconnected {} {
691	return [VisViewer::IsConnected]
692	}
693
694	#
695	# disconnect --
696	#
697	itcl::body Rappture::VtkMeshViewer::disconnect {} {
698	Disconnect
699	set _reset 1
700	}
701
702	#
703	# Disconnect --
704	#
705	# Clients use this method to disconnect from the current rendering
706	# server.
707	#
708	itcl::body Rappture::VtkMeshViewer::Disconnect {} {
709	VisViewer::Disconnect
710
711	# disconnected -- no more data sitting on server
712	array unset _datasets
713	array unset _data
714	global readyForNextFrame
715	set readyForNextFrame 1
716	}
717
718	# ----------------------------------------------------------------------
719	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
720	#
721	# Invoked automatically whenever the "image" command comes in from
722	# the rendering server. Indicates that binary image data with the
723	# specified <size> will follow.
724	# ----------------------------------------------------------------------
725	itcl::body Rappture::VtkMeshViewer::ReceiveImage { args } {
726	global readyForNextFrame
727	set readyForNextFrame 1
728	array set info {
729	-token "???"
730	-bytes 0
731	-type image
732	}
733	array set info $args
734	set bytes [ReceiveBytes $info(-bytes)]
735	if { $info(-type) == "image" } {
736	if 0 {
737	set f [open "last.ppm" "w"]
738	fconfigure $f -encoding binary
739	puts -nonewline $f $bytes
740	close $f
741	}
742	$_image(plot) configure -data $bytes
743	set time [clock seconds]
744	set date [clock format $time]
745	if { $_start > 0 } {
746	set finish [clock clicks -milliseconds]
747	set _start 0
748	}
749	} elseif { $info(type) == "print" } {
750	set tag $this-print-$info(-token)
751	set _hardcopy($tag) $bytes
752	}
753	}
754
755	#
756	# ReceiveDataset --
757	#
758	itcl::body Rappture::VtkMeshViewer::ReceiveDataset { args } {
759	if { ![isconnected] } {
760	return
761	}
762	set option [lindex $args 0]
763	switch -- $option {
764	"scalar" {
765	set option [lindex $args 1]
766	switch -- $option {
767	"world" {
768	foreach { x y z value tag } [lrange $args 2 end] break
769	}
770	"pixel" {
771	foreach { x y value tag } [lrange $args 2 end] break
772	}
773	}
774	}
775	"vector" {
776	set option [lindex $args 1]
777	switch -- $option {
778	"world" {
779	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
780	}
781	"pixel" {
782	foreach { x y vx vy vz tag } [lrange $args 2 end] break
783	}
784	}
785	}
786	"names" {
787	foreach { name } [lindex $args 1] {
788	#puts stderr "Dataset: $name"
789	}
790	}
791	default {
792	error "unknown dataset option \"$option\" from server"
793	}
794	}
795	}
796
797	# ----------------------------------------------------------------------
798	# USAGE: Rebuild
799	#
800	# Called automatically whenever something changes that affects the
801	# data in the widget. Clears any existing data and rebuilds the
802	# widget to display new data.
803	# ----------------------------------------------------------------------
804	itcl::body Rappture::VtkMeshViewer::Rebuild {} {
805
806	set w [winfo width $itk_component(view)]
807	set h [winfo height $itk_component(view)]
808	if { $w < 2 \|\| $h < 2 } {
809	$_dispatcher event -idle !rebuild
810	return
811	}
812
813	# Turn on buffering of commands to the server. We don't want to
814	# be preempted by a server disconnect/reconnect (which automatically
815	# generates a new call to Rebuild).
816	StartBufferingCommands
817
818	if { $_reset } {
819	set _width $w
820	set _height $h
821	$_arcball resize $w $h
822	DoResize
823	InitSettings -xgrid -ygrid -zgrid -axismode \
824	-axesvisible -axislabels -axisminorticks
825	StopBufferingCommands
826	SendCmd "imgflush"
827	StartBufferingCommands
828	}
829
830	set _limits(zmin) ""
831	set _limits(zmax) ""
832	set _first ""
833	SendCmd "dataset visible 0"
834	set count 0
835	foreach dataobj [get -objects] {
836	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
837	set _first $dataobj
838	}
839	set _obj2datasets($dataobj) ""
840	set tag $dataobj
841	if { ![info exists _datasets($tag)] } {
842	set bytes [$dataobj vtkdata -full]
843	if { $bytes == "" } {
844	continue
845	}
846	set length [string length $bytes]
847	if { $_reportClientInfo } {
848	set info {}
849	lappend info "tool_id" [$dataobj hints toolid]
850	lappend info "tool_name" [$dataobj hints toolname]
851	lappend info "tool_title" [$dataobj hints tooltitle]
852	lappend info "tool_command" [$dataobj hints toolcommand]
853	lappend info "tool_revision" [$dataobj hints toolrevision]
854	lappend info "dataset_label" [$dataobj hints label]
855	lappend info "dataset_size" $length
856	lappend info "dataset_tag" $tag
857	SendCmd [list "clientinfo" $info]
858	}
859	SendCmd "dataset add $tag data follows $length"
860	append _outbuf $bytes
861	set _datasets($tag) 1
862	SetObjectStyle $dataobj
863	}
864	lappend _obj2datasets($dataobj) $tag
865	if { [info exists _obj2ovride($dataobj-raise)] } {
866	SendCmd "dataset visible 1 $tag"
867	EventuallySetPolydataOpacity
868	}
869	}
870	if {"" != $_first} {
871	set location [$_first hints camera]
872	if { $location != "" } {
873	array set view $location
874	}
875
876	foreach axis { x y z } {
877	set label [$_first label ${axis}]
878	if { $label != "" } {
879	SendCmd [list axis name $axis $label]
880	}
881	set units [$_first units ${axis}]
882	if { $units != "" } {
883	SendCmd [list axis units $axis $units]
884	}
885	}
886	}
887	InitSettings -outline
888	if { $_reset } {
889	# These are settings that rely on a dataset being loaded.
890	InitSettings -polydataedges -polydatalighting -polydataopacity \
891	-polydatavisible -polydatawireframe
892
893	#SendCmd "axis lformat all %g"
894
895	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
896	$_arcball quaternion $q
897	SendCmd "camera reset"
898	if { $_view(ortho)} {
899	SendCmd "camera mode ortho"
900	} else {
901	SendCmd "camera mode persp"
902	}
903	DoRotate
904	PanCamera
905	Zoom reset
906	}
907
908	set _reset 0
909	global readyForNextFrame
910	set readyForNextFrame 0; # Don't advance to the next frame
911	# until we get an image.
912
913	# Actually write the commands to the server socket. If it fails, we don't
914	# care. We're finished here.
915	blt::busy hold $itk_component(hull)
916	StopBufferingCommands
917	blt::busy release $itk_component(hull)
918	}
919
920	# ----------------------------------------------------------------------
921	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
922	#
923	# Returns a list of server IDs for the current datasets being displayed. This
924	# is normally a single ID, but it might be a list of IDs if the current data
925	# object has multiple components.
926	# ----------------------------------------------------------------------
927	itcl::body Rappture::VtkMeshViewer::CurrentDatasets {args} {
928	set flag [lindex $args 0]
929	switch -- $flag {
930	"-all" {
931	if { [llength $args] > 1 } {
932	error "CurrentDatasets: can't specify dataobj after \"-all\""
933	}
934	set dlist [get -objects]
935	}
936	"-visible" {
937	if { [llength $args] > 1 } {
938	set dlist {}
939	set args [lrange $args 1 end]
940	foreach dataobj $args {
941	if { [info exists _obj2ovride($dataobj-raise)] } {
942	lappend dlist $dataobj
943	}
944	}
945	} else {
946	set dlist [get -visible]
947	}
948	}
949	default {
950	set dlist $args
951	}
952	}
953	set rlist ""
954	foreach tag $dlist {
955	if { [info exists _datasets($tag)] && $_datasets($tag) } {
956	lappend rlist $tag
957	}
958	}
959	return $rlist
960	}
961
962	# ----------------------------------------------------------------------
963	# USAGE: Zoom in
964	# USAGE: Zoom out
965	# USAGE: Zoom reset
966	#
967	# Called automatically when the user clicks on one of the zoom
968	# controls for this widget. Changes the zoom for the current view.
969	# ----------------------------------------------------------------------
970	itcl::body Rappture::VtkMeshViewer::Zoom {option} {
971	switch -- $option {
972	"in" {
973	set _view(zoom) [expr {$_view(zoom)*1.25}]
974	SendCmd "camera zoom $_view(zoom)"
975	}
976	"out" {
977	set _view(zoom) [expr {$_view(zoom)*0.8}]
978	SendCmd "camera zoom $_view(zoom)"
979	}
980	"reset" {
981	array set _view {
982	qw 0.853553
983	qx -0.353553
984	qy 0.353553
985	qz 0.146447
986	zoom 1.0
987	xpan 0
988	ypan 0
989	}
990	if { $_first != "" } {
991	set location [$_first hints camera]
992	if { $location != "" } {
993	array set _view $location
994	}
995	}
996	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
997	$_arcball quaternion $q
998	DoRotate
999	SendCmd "camera reset"
1000	}
1001	}
1002	}
1003
1004	itcl::body Rappture::VtkMeshViewer::PanCamera {} {
1005	set x $_view(xpan)
1006	set y $_view(ypan)
1007	SendCmd "camera pan $x $y"
1008	}
1009
1010	# ----------------------------------------------------------------------
1011	# USAGE: Rotate click <x> <y>
1012	# USAGE: Rotate drag <x> <y>
1013	# USAGE: Rotate release <x> <y>
1014	#
1015	# Called automatically when the user clicks/drags/releases in the
1016	# plot area. Moves the plot according to the user's actions.
1017	# ----------------------------------------------------------------------
1018	itcl::body Rappture::VtkMeshViewer::Rotate {option x y} {
1019	switch -- $option {
1020	"click" {
1021	$itk_component(view) configure -cursor fleur
1022	set _click(x) $x
1023	set _click(y) $y
1024	}
1025	"drag" {
1026	if {[array size _click] == 0} {
1027	Rotate click $x $y
1028	} else {
1029	set w [winfo width $itk_component(view)]
1030	set h [winfo height $itk_component(view)]
1031	if {$w <= 0 \|\| $h <= 0} {
1032	return
1033	}
1034
1035	if {[catch {
1036	# this fails sometimes for no apparent reason
1037	set dx [expr {double($x-$_click(x))/$w}]
1038	set dy [expr {double($y-$_click(y))/$h}]
1039	}]} {
1040	return
1041	}
1042	if { $dx == 0 && $dy == 0 } {
1043	return
1044	}
1045	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1046	EventuallyRotate $q
1047	set _click(x) $x
1048	set _click(y) $y
1049	}
1050	}
1051	"release" {
1052	Rotate drag $x $y
1053	$itk_component(view) configure -cursor ""
1054	catch {unset _click}
1055	}
1056	default {
1057	error "bad option \"$option\": should be click, drag, release"
1058	}
1059	}
1060	}
1061
1062	itcl::body Rappture::VtkMeshViewer::Pick {x y} {
1063	foreach tag [CurrentDatasets -visible] {
1064	SendCmd "dataset getscalar pixel $x $y $tag"
1065	}
1066	}
1067
1068	# ----------------------------------------------------------------------
1069	# USAGE: $this Pan click x y
1070	# $this Pan drag x y
1071	# $this Pan release x y
1072	#
1073	# Called automatically when the user clicks on one of the zoom
1074	# controls for this widget. Changes the zoom for the current view.
1075	# ----------------------------------------------------------------------
1076	itcl::body Rappture::VtkMeshViewer::Pan {option x y} {
1077	switch -- $option {
1078	"set" {
1079	set w [winfo width $itk_component(view)]
1080	set h [winfo height $itk_component(view)]
1081	set x [expr $x / double($w)]
1082	set y [expr $y / double($h)]
1083	set _view(xpan) [expr $_view(xpan) + $x]
1084	set _view(ypan) [expr $_view(ypan) + $y]
1085	PanCamera
1086	return
1087	}
1088	"click" {
1089	set _click(x) $x
1090	set _click(y) $y
1091	$itk_component(view) configure -cursor hand1
1092	}
1093	"drag" {
1094	if { ![info exists _click(x)] } {
1095	set _click(x) $x
1096	}
1097	if { ![info exists _click(y)] } {
1098	set _click(y) $y
1099	}
1100	set w [winfo width $itk_component(view)]
1101	set h [winfo height $itk_component(view)]
1102	set dx [expr ($_click(x) - $x)/double($w)]
1103	set dy [expr ($_click(y) - $y)/double($h)]
1104	set _click(x) $x
1105	set _click(y) $y
1106	set _view(xpan) [expr $_view(xpan) - $dx]
1107	set _view(ypan) [expr $_view(ypan) - $dy]
1108	PanCamera
1109	}
1110	"release" {
1111	Pan drag $x $y
1112	$itk_component(view) configure -cursor ""
1113	}
1114	default {
1115	error "unknown option \"$option\": should set, click, drag, or release"
1116	}
1117	}
1118	}
1119
1120	# ----------------------------------------------------------------------
1121	# USAGE: InitSettings <what> ?<value>?
1122	#
1123	# Used internally to update rendering settings whenever parameters
1124	# change in the popup settings panel. Sends the new settings off
1125	# to the back end.
1126	# ----------------------------------------------------------------------
1127	itcl::body Rappture::VtkMeshViewer::InitSettings { args } {
1128	foreach setting $args {
1129	AdjustSetting $setting
1130	}
1131	}
1132
1133	#
1134	# AdjustSetting --
1135	#
1136	# Changes/updates a specific setting in the widget. There are
1137	# usually user-setable option. Commands are sent to the render
1138	# server.
1139	#
1140	itcl::body Rappture::VtkMeshViewer::AdjustSetting {what {value ""}} {
1141	if { ![isconnected] } {
1142	return
1143	}
1144	switch -- $what {
1145	"-outline" {
1146	set bool $_settings($what)
1147	# Only display a outline for the currently visible sets.
1148	SendCmd "outline visible 0"
1149	foreach dataset [CurrentDatasets -visible] {
1150	SendCmd "outline visible $bool $dataset"
1151	}
1152	}
1153	"-polydataopacity" {
1154	set _settings($what) [expr $_widget($what) * 0.01]
1155	EventuallySetPolydataOpacity
1156	}
1157	"-polydatawireframe" {
1158	set bool $_settings($what)
1159	SendCmd "polydata wireframe $bool"
1160	}
1161	"-polydatavisible" {
1162	set bool $_settings($what)
1163	# Only change visibility of data sets marked "visible".
1164	foreach dataset [CurrentDatasets -visible] {
1165	SendCmd "polydata visible $bool $dataset"
1166	}
1167	}
1168	"-polydatalighting" {
1169	set bool $_settings($what)
1170	SendCmd "polydata lighting $bool"
1171	}
1172	"-polydataedges" {
1173	set bool $_settings($what)
1174	SendCmd "polydata edges $bool"
1175	}
1176	"-axesvisible" {
1177	set bool $_settings($what)
1178	SendCmd "axis visible all $bool"
1179	}
1180	"-axislabels" {
1181	set bool $_settings($what)
1182	SendCmd "axis labels all $bool"
1183	}
1184	"-axisminorticks" {
1185	set bool $_settings($what)
1186	SendCmd "axis minticks all $bool"
1187	}
1188	"-xgrid" {
1189	set bool $_settings($what)
1190	SendCmd "axis grid x $bool"
1191	}
1192	"-ygrid" {
1193	set bool $_settings($what)
1194	SendCmd "axis grid y $bool"
1195	}
1196	"-zgrid" {
1197	set bool $_settings($what)
1198	SendCmd "axis grid z $bool"
1199	}
1200	"-axismode" {
1201	set mode [$itk_component(axismode) value]
1202	set mode [$itk_component(axismode) translate $mode]
1203	SendCmd "axis flymode $mode"
1204	}
1205	default {
1206	error "don't know how to fix $what"
1207	}
1208	}
1209	}
1210
1211	# ----------------------------------------------------------------------
1212	# CONFIGURATION OPTION: -plotbackground
1213	# ----------------------------------------------------------------------
1214	itcl::configbody Rappture::VtkMeshViewer::plotbackground {
1215	if { [isconnected] } {
1216	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
1217	SendCmd "screen bgcolor $r $g $b"
1218	}
1219	}
1220
1221	# ----------------------------------------------------------------------
1222	# CONFIGURATION OPTION: -plotforeground
1223	# ----------------------------------------------------------------------
1224	itcl::configbody Rappture::VtkMeshViewer::plotforeground {
1225	if { [isconnected] } {
1226	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
1227	#fix this!
1228	#SendCmd "color background $r $g $b"
1229	}
1230	}
1231
1232	itcl::body Rappture::VtkMeshViewer::limits { dataobj } {
1233	set tag $dataobj
1234	if { ![info exists _limits($tag)] } {
1235	set data [$dataobj vtkdata -full]
1236	if { $data == "" } {
1237	continue
1238	}
1239	set tmpfile file[pid].vtk
1240	set f [open "$tmpfile" "w"]
1241	fconfigure $f -translation binary -encoding binary
1242	puts $f $data
1243	close $f
1244	set reader [vtkDataSetReader $tag-xvtkDataSetReader]
1245	$reader SetFileName $tmpfile
1246	$reader Update
1247	file delete $tmpfile
1248	set output [$reader GetOutput]
1249	set _limits($tag) [$output GetBounds]
1250	rename $output ""
1251	rename $reader ""
1252	}
1253	foreach { xMin xMax yMin yMax zMin zMax} $_limits($tag) break
1254	if {![info exists limits(xmin)] \|\| $limits(xmin) > $xMin} {
1255	set limits(xmin) $xMin
1256	}
1257	if {![info exists limits(xmax)] \|\| $limits(xmax) < $xMax} {
1258	set limits(xmax) $xMax
1259	}
1260	if {![info exists limits(ymin)] \|\| $limits(ymin) > $yMin} {
1261	set limits(ymin) $xMin
1262	}
1263	if {![info exists limits(ymax)] \|\| $limits(ymax) < $yMax} {
1264	set limits(ymax) $yMax
1265	}
1266	if {![info exists limits(zmin)] \|\| $limits(zmin) > $zMin} {
1267	set limits(zmin) $zMin
1268	}
1269	if {![info exists limits(zmax)] \|\| $limits(zmax) < $zMax} {
1270	set limits(zmax) $zMax
1271	}
1272
1273	return [array get limits]
1274	}
1275
1276	itcl::body Rappture::VtkMeshViewer::BuildPolydataTab {} {
1277
1278	set fg [option get $itk_component(hull) font Font]
1279	#set bfg [option get $itk_component(hull) boldFont Font]
1280
1281	set inner [$itk_component(main) insert end \
1282	-title "Mesh Settings" \
1283	-icon [Rappture::icon mesh]]
1284	$inner configure -borderwidth 4
1285
1286	checkbutton $inner.mesh \
1287	-text "Show Mesh" \
1288	-variable [itcl::scope _settings(-polydatavisible)] \
1289	-command [itcl::code $this AdjustSetting -polydatavisible] \
1290	-font "Arial 9" -anchor w
1291
1292	checkbutton $inner.outline \
1293	-text "Show Outline" \
1294	-variable [itcl::scope _settings(-outline)] \
1295	-command [itcl::code $this AdjustSetting -outline] \
1296	-font "Arial 9" -anchor w
1297
1298	checkbutton $inner.wireframe \
1299	-text "Show Wireframe" \
1300	-variable [itcl::scope _settings(-polydatawireframe)] \
1301	-command [itcl::code $this AdjustSetting -polydatawireframe] \
1302	-font "Arial 9" -anchor w
1303
1304	checkbutton $inner.lighting \
1305	-text "Enable Lighting" \
1306	-variable [itcl::scope _settings(-polydatalighting)] \
1307	-command [itcl::code $this AdjustSetting -polydatalighting] \
1308	-font "Arial 9" -anchor w
1309
1310	checkbutton $inner.edges \
1311	-text "Show Edges" \
1312	-variable [itcl::scope _settings(-polydataedges)] \
1313	-command [itcl::code $this AdjustSetting -polydataedges] \
1314	-font "Arial 9" -anchor w
1315
1316	itk_component add field_l {
1317	label $inner.field_l -text "Field" -font "Arial 9"
1318	} {
1319	ignore -font
1320	}
1321	itk_component add field {
1322	Rappture::Combobox $inner.field -width 10 -editable no
1323	}
1324	bind $inner.field <<Value>> \
1325	[itcl::code $this AdjustSetting -field]
1326
1327	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1328	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1329	-variable [itcl::scope _widget(-polydataopacity)] \
1330	-width 10 \
1331	-showvalue off \
1332	-command [itcl::code $this AdjustSetting -polydataopacity]
1333	$inner.opacity set [expr $_settings(-polydataopacity) * 100.0]
1334
1335	blt::table $inner \
1336	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1337	1,0 $inner.outline -cspan 2 -anchor w -pady 2 \
1338	2,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1339	3,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1340	4,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1341	5,0 $inner.opacity_l -anchor w -pady 2 \
1342	5,1 $inner.opacity -fill x -pady 2
1343
1344	blt::table configure $inner r* c* -resize none
1345	blt::table configure $inner r7 c1 -resize expand
1346	}
1347
1348	itcl::body Rappture::VtkMeshViewer::BuildAxisTab {} {
1349
1350	set fg [option get $itk_component(hull) font Font]
1351	#set bfg [option get $itk_component(hull) boldFont Font]
1352
1353	set inner [$itk_component(main) insert end \
1354	-title "Axis Settings" \
1355	-icon [Rappture::icon axis2]]
1356	$inner configure -borderwidth 4
1357
1358	checkbutton $inner.visible \
1359	-text "Axes" \
1360	-variable [itcl::scope _settings(-axesvisible)] \
1361	-command [itcl::code $this AdjustSetting -axesvisible] \
1362	-font "Arial 9"
1363
1364	checkbutton $inner.labels \
1365	-text "Axis Labels" \
1366	-variable [itcl::scope _settings(-axislabels)] \
1367	-command [itcl::code $this AdjustSetting -axislabels] \
1368	-font "Arial 9"
1369	label $inner.grid_l -text "Grid" -font "Arial 9"
1370	checkbutton $inner.xgrid \
1371	-text "X" \
1372	-variable [itcl::scope _settings(-xgrid)] \
1373	-command [itcl::code $this AdjustSetting -xgrid] \
1374	-font "Arial 9"
1375	checkbutton $inner.ygrid \
1376	-text "Y" \
1377	-variable [itcl::scope _settings(-ygrid)] \
1378	-command [itcl::code $this AdjustSetting -ygrid] \
1379	-font "Arial 9"
1380	checkbutton $inner.zgrid \
1381	-text "Z" \
1382	-variable [itcl::scope _settings(-zgrid)] \
1383	-command [itcl::code $this AdjustSetting -zgrid] \
1384	-font "Arial 9"
1385	checkbutton $inner.minorticks \
1386	-text "Minor Ticks" \
1387	-variable [itcl::scope _settings(-axisminorticks)] \
1388	-command [itcl::code $this AdjustSetting -axisminorticks] \
1389	-font "Arial 9"
1390
1391	label $inner.mode_l -text "Mode" -font "Arial 9"
1392
1393	itk_component add axismode {
1394	Rappture::Combobox $inner.mode -width 10 -editable no
1395	}
1396	$inner.mode choices insert end \
1397	"static_triad" "static" \
1398	"closest_triad" "closest" \
1399	"furthest_triad" "farthest" \
1400	"outer_edges" "outer"
1401	$itk_component(axismode) value "static"
1402	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1403
1404	blt::table $inner \
1405	0,0 $inner.visible -anchor w -cspan 4 \
1406	1,0 $inner.labels -anchor w -cspan 4 \
1407	2,0 $inner.minorticks -anchor w -cspan 4 \
1408	4,0 $inner.grid_l -anchor w \
1409	4,1 $inner.xgrid -anchor w \
1410	4,2 $inner.ygrid -anchor w \
1411	4,3 $inner.zgrid -anchor w \
1412	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1413	5,1 $inner.mode -fill x -cspan 3
1414
1415	blt::table configure $inner r* c* -resize none
1416	blt::table configure $inner r7 c6 -resize expand
1417	blt::table configure $inner r3 -height 0.125i
1418	}
1419
1420	itcl::body Rappture::VtkMeshViewer::BuildCameraTab {} {
1421	set inner [$itk_component(main) insert end \
1422	-title "Camera Settings" \
1423	-icon [Rappture::icon camera]]
1424	$inner configure -borderwidth 4
1425
1426	label $inner.view_l -text "view" -font "Arial 9"
1427	set f [frame $inner.view]
1428	foreach side { front back left right top bottom } {
1429	button $f.$side -image [Rappture::icon view$side] \
1430	-command [itcl::code $this SetOrientation $side]
1431	Rappture::Tooltip::for $f.$side "Change the view to $side"
1432	pack $f.$side -side left
1433	}
1434
1435	blt::table $inner \
1436	0,0 $inner.view_l -anchor e -pady 2 \
1437	0,1 $inner.view -anchor w -pady 2
1438
1439	set labels { qx qy qz qw xpan ypan zoom }
1440	set row 1
1441	foreach tag $labels {
1442	label $inner.${tag}label -text $tag -font "Arial 9"
1443	entry $inner.${tag} -font "Arial 9" -bg white \
1444	-textvariable [itcl::scope _view($tag)]
1445	bind $inner.${tag} <Return> \
1446	[itcl::code $this camera set ${tag}]
1447	bind $inner.${tag} <KP_Enter> \
1448	[itcl::code $this camera set ${tag}]
1449	blt::table $inner \
1450	$row,0 $inner.${tag}label -anchor e -pady 2 \
1451	$row,1 $inner.${tag} -anchor w -pady 2
1452	blt::table configure $inner r$row -resize none
1453	incr row
1454	}
1455	checkbutton $inner.ortho \
1456	-text "Orthographic Projection" \
1457	-variable [itcl::scope _view(ortho)] \
1458	-command [itcl::code $this camera set ortho] \
1459	-font "Arial 9"
1460	blt::table $inner \
1461	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1462	blt::table configure $inner r$row -resize none
1463	incr row
1464
1465	blt::table configure $inner c* r* -resize none
1466	blt::table configure $inner c2 -resize expand
1467	blt::table configure $inner r$row -resize expand
1468	}
1469
1470	#
1471	# camera --
1472	#
1473	itcl::body Rappture::VtkMeshViewer::camera {option args} {
1474	switch -- $option {
1475	"show" {
1476	puts [array get _view]
1477	}
1478	"set" {
1479	set who [lindex $args 0]
1480	set x $_view($who)
1481	set code [catch { string is double $x } result]
1482	if { $code != 0 \|\| !$result } {
1483	return
1484	}
1485	switch -- $who {
1486	"ortho" {
1487	if {$_view(ortho)} {
1488	SendCmd "camera mode ortho"
1489	} else {
1490	SendCmd "camera mode persp"
1491	}
1492	}
1493	"xpan" - "ypan" {
1494	PanCamera
1495	}
1496	"qx" - "qy" - "qz" - "qw" {
1497	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1498	$_arcball quaternion $q
1499	EventuallyRotate $q
1500	}
1501	"zoom" {
1502	SendCmd "camera zoom $_view(zoom)"
1503	}
1504	}
1505	}
1506	}
1507	}
1508
1509	itcl::body Rappture::VtkMeshViewer::GetVtkData { args } {
1510	set bytes ""
1511	foreach dataobj [get] {
1512	set contents [$dataobj vtkdata -full]
1513	append bytes "$contents\n"
1514	}
1515	return [list .vtk $bytes]
1516	}
1517
1518	itcl::body Rappture::VtkMeshViewer::GetImage { args } {
1519	if { [image width $_image(download)] > 0 &&
1520	[image height $_image(download)] > 0 } {
1521	set bytes [$_image(download) data -format "jpeg -quality 100"]
1522	set bytes [Rappture::encoding::decode -as b64 $bytes]
1523	return [list .jpg $bytes]
1524	}
1525	return ""
1526	}
1527
1528	itcl::body Rappture::VtkMeshViewer::BuildDownloadPopup { popup command } {
1529	Rappture::Balloon $popup \
1530	-title "[Rappture::filexfer::label downloadWord] as..."
1531	set inner [$popup component inner]
1532	label $inner.summary -text "" -anchor w
1533	radiobutton $inner.vtk_button -text "VTK data file" \
1534	-variable [itcl::scope _downloadPopup(format)] \
1535	-font "Helvetica 9 " \
1536	-value vtk
1537	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
1538	radiobutton $inner.image_button -text "Image File" \
1539	-variable [itcl::scope _downloadPopup(format)] \
1540	-value image
1541	Rappture::Tooltip::for $inner.image_button \
1542	"Save as digital image."
1543
1544	button $inner.ok -text "Save" \
1545	-highlightthickness 0 -pady 2 -padx 3 \
1546	-command $command \
1547	-compound left \
1548	-image [Rappture::icon download]
1549
1550	button $inner.cancel -text "Cancel" \
1551	-highlightthickness 0 -pady 2 -padx 3 \
1552	-command [list $popup deactivate] \
1553	-compound left \
1554	-image [Rappture::icon cancel]
1555
1556	blt::table $inner \
1557	0,0 $inner.summary -cspan 2 \
1558	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
1559	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
1560	4,1 $inner.cancel -width .9i -fill y \
1561	4,0 $inner.ok -padx 2 -width .9i -fill y
1562	blt::table configure $inner r3 -height 4
1563	blt::table configure $inner r4 -pady 4
1564	raise $inner.image_button
1565	$inner.vtk_button invoke
1566	return $inner
1567	}
1568
1569	itcl::body Rappture::VtkMeshViewer::SetObjectStyle { dataobj } {
1570	# Parse style string.
1571	set tag $dataobj
1572	set type [$dataobj type]
1573
1574	array set style {
1575	-cloudstyle mesh
1576	-color white
1577	-edgecolor black
1578	-edges 1
1579	-lighting 1
1580	-linewidth 1.0
1581	-opacity 1.0
1582	-outline 0
1583	-visible 1
1584	-wireframe 0
1585	}
1586	if { $dataobj != $_first } {
1587	set style(-wireframe) 1
1588	}
1589	if {$type == "cloud"} {
1590	set style(-cloudstyle) points
1591	set style(-edges) 0
1592	set style(-edgecolor) white
1593	}
1594	array set style [$dataobj hints style]
1595
1596	if {[$dataobj hints color] != ""} {
1597	set style(-color) [$dataobj hints color]
1598	}
1599	SendCmd "outline add $tag"
1600	SendCmd "outline color [Color2RGB $style(-color)] $tag"
1601	SendCmd "outline visible $style(-outline) $tag"
1602	set _settings(-outline) $style(-outline)
1603
1604	SendCmd "polydata add $tag"
1605	SendCmd "polydata visible $style(-visible) $tag"
1606	set _settings(-polydatavisible) $style(-visible)
1607	SendCmd "polydata cloudstyle $style(-cloudstyle) $tag"
1608	SendCmd "polydata edges $style(-edges) $tag"
1609	set _settings(-polydataedges) $style(-edges)
1610	SendCmd "polydata color [Color2RGB $style(-color)] $tag"
1611	SendCmd "polydata lighting $style(-lighting) $tag"
1612	set _settings(-polydatalighting) $style(-lighting)
1613	SendCmd "polydata linecolor [Color2RGB $style(-edgecolor)] $tag"
1614	SendCmd "polydata linewidth $style(-linewidth) $tag"
1615	SendCmd "polydata opacity $style(-opacity) $tag"
1616	set _settings(-polydataopacity) $style(-opacity)
1617	set _widget(-polydataopacity) [expr 100.0 * $style(-opacity)]
1618	SendCmd "polydata wireframe $style(-wireframe) $tag"
1619	set _settings(-polydatawireframe) $style(-wireframe)
1620	set havePolyData 1
1621	}
1622
1623	itcl::body Rappture::VtkMeshViewer::IsValidObject { dataobj } {
1624	if {[catch {$dataobj isa Rappture::Mesh} valid] != 0 \|\| !$valid} {
1625	return 0
1626	}
1627	return 1
1628	}
1629
1630	itcl::body Rappture::VtkMeshViewer::SetOrientation { side } {
1631	array set positions {
1632	front "1 0 0 0"
1633	back "0 0 1 0"
1634	left "0.707107 0 -0.707107 0"
1635	right "0.707107 0 0.707107 0"
1636	top "0.707107 -0.707107 0 0"
1637	bottom "0.707107 0.707107 0 0"
1638	}
1639	foreach name { qw qx qy qz } value $positions($side) {
1640	set _view($name) $value
1641	}
1642	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1643	$_arcball quaternion $q
1644	SendCmd "camera orient $q"
1645	SendCmd "camera reset"
1646	set _view(xpan) 0
1647	set _view(ypan) 0
1648	set _view(zoom) 1.0
1649	}

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