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source: trunk/gui/scripts/vtkmeshviewer.tcl @ 5094

Last change on this file since 5094 was 5094, checked in by ldelgass, 10 years ago
Enable the wait animation in all nanovis and vtkvis viewers
File size: 54.7 KB

Line
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	# The following methods are only used by this class.
66	private method AdjustSetting {what {value ""}}
67	private method BuildAxisTab {}
68	private method BuildCameraTab {}
69	private method BuildDownloadPopup { widget command }
70	private method BuildPolydataTab {}
71	private method Connect {}
72	private method CurrentDatasets {args}
73	private method Disconnect {}
74	private method DoResize {}
75	private method DoRotate {}
76	private method EventuallyResize { w h }
77	private method EventuallyRotate { q }
78	private method EventuallySetPolydataOpacity {}
79	private method GetImage { args }
80	private method GetVtkData { args }
81	private method InitSettings { args }
82	private method IsValidObject { dataobj }
83	private method Pan {option x y}
84	private method PanCamera {}
85	private method Pick {x y}
86	private method QuaternionToView { q } {
87	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
88	}
89	private method Rebuild {}
90	private method ReceiveDataset { args }
91	private method ReceiveImage { args }
92	private method Rotate {option x y}
93	private method SetObjectStyle { dataobj }
94	private method SetOrientation { side }
95	private method SetPolydataOpacity {}
96	private method ViewToQuaternion {} {
97	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
98	}
99	private method Zoom {option}
100
101	private variable _arcball ""
102	private variable _dlist ""; # list of data objects
103	private variable _obj2datasets
104	private variable _obj2ovride; # maps dataobj => style override
105	private variable _datasets; # contains all the dataobj-component
106	# datasets in the server
107	private variable _dataset2style; # maps dataobj-component to transfunc
108	private variable _style2datasets; # maps tf back to list of
109	# dataobj-components using the tf.
110	private variable _click; # info used for rotate operations
111	private variable _limits; # autoscale min/max for all axes
112	private variable _view; # view params for 3D view
113	private variable _settings
114	private variable _widget
115	private variable _style; # Array of current component styles.
116	private variable _initialStyle; # Array of initial component styles.
117	private variable _reset 1; # Indicates that server was reset and
118	# needs to be reinitialized.
119
120	private variable _first ""; # This is the topmost dataset.
121	private variable _start 0
122	private variable _title ""
123
124	common _downloadPopup; # download options from popup
125	private common _hardcopy
126	private variable _width 0
127	private variable _height 0
128	private variable _resizePending 0
129	private variable _rotatePending 0
130	private variable _polydataOpacityPending 0
131	private variable _rotateDelay 150
132	private variable _opacityDelay 150
133	}
134
135	itk::usual VtkMeshViewer {
136	keep -background -foreground -cursor -font
137	keep -plotbackground -plotforeground
138	}
139
140	# ----------------------------------------------------------------------
141	# CONSTRUCTOR
142	# ----------------------------------------------------------------------
143	itcl::body Rappture::VtkMeshViewer::constructor {hostlist args} {
144	package require vtk
145	set _serverType "vtkvis"
146
147	# Rebuild event
148	$_dispatcher register !rebuild
149	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
150
151	# Resize event
152	$_dispatcher register !resize
153	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
154
155	# Rotate event
156	$_dispatcher register !rotate
157	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
158
159	# Polydata opacity event
160	$_dispatcher register !polydataOpacity
161	$_dispatcher dispatch $this !polydataOpacity \
162	"[itcl::code $this SetPolydataOpacity]; list"
163	#
164	# Populate parser with commands handle incoming requests
165	#
166	$_parser alias image [itcl::code $this ReceiveImage]
167	$_parser alias dataset [itcl::code $this ReceiveDataset]
168
169	# Initialize the view to some default parameters.
170	array set _view {
171	-ortho 0
172	-qw 0.853553
173	-qx -0.353553
174	-qy 0.353553
175	-qz 0.146447
176	-xpan 0
177	-ypan 0
178	-zoom 1.0
179	}
180	set _arcball [blt::arcball create 100 100]
181	$_arcball quaternion [ViewToQuaternion]
182
183	set _limits(zmin) 0.0
184	set _limits(zmax) 1.0
185
186	array set _settings {
187	-axesvisible 1
188	-axislabels 1
189	-axisminorticks 1
190	-outline 0
191	-polydataedges 0
192	-polydatalighting 1
193	-polydataopacity 1.0
194	-polydatavisible 1
195	-polydatawireframe 0
196	-xgrid 0
197	-ygrid 0
198	-zgrid 0
199	}
200	array set _widget {
201	-polydataopacity 100
202	}
203	itk_component add view {
204	canvas $itk_component(plotarea).view \
205	-highlightthickness 0 -borderwidth 0
206	} {
207	usual
208	ignore -highlightthickness -borderwidth -background
209	}
210
211	itk_component add fieldmenu {
212	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
213	-tearoff no
214	} {
215	usual
216	ignore -background -foreground -relief -tearoff
217	}
218
219	set c $itk_component(view)
220	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
221	bind $c <4> [itcl::code $this Zoom in 0.25]
222	bind $c <5> [itcl::code $this Zoom out 0.25]
223	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
224	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
225	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
226	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
227	bind $c <Enter> "focus %W"
228	bind $c <Control-F1> [itcl::code $this ToggleConsole]
229
230	# Fix the scrollregion in case we go off screen
231	$c configure -scrollregion [$c bbox all]
232
233	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
234	set _map(cwidth) -1
235	set _map(cheight) -1
236	set _map(zoom) 1.0
237	set _map(original) ""
238
239	set f [$itk_component(main) component controls]
240	itk_component add reset {
241	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
242	-highlightthickness 0 \
243	-image [Rappture::icon reset-view] \
244	-command [itcl::code $this Zoom reset]
245	} {
246	usual
247	ignore -highlightthickness
248	}
249	pack $itk_component(reset) -side top -padx 2 -pady 2
250	Rappture::Tooltip::for $itk_component(reset) \
251	"Reset the view to the default zoom level"
252
253	itk_component add zoomin {
254	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
255	-highlightthickness 0 \
256	-image [Rappture::icon zoom-in] \
257	-command [itcl::code $this Zoom in]
258	} {
259	usual
260	ignore -highlightthickness
261	}
262	pack $itk_component(zoomin) -side top -padx 2 -pady 2
263	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
264
265	itk_component add zoomout {
266	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
267	-highlightthickness 0 \
268	-image [Rappture::icon zoom-out] \
269	-command [itcl::code $this Zoom out]
270	} {
271	usual
272	ignore -highlightthickness
273	}
274	pack $itk_component(zoomout) -side top -padx 2 -pady 2
275	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
276
277	BuildPolydataTab
278	BuildAxisTab
279	BuildCameraTab
280
281	# Hack around the Tk panewindow. The problem is that the requested
282	# size of the 3d view isn't set until an image is retrieved from
283	# the server. So the panewindow uses the tiny size.
284	set w 10000
285	pack forget $itk_component(view)
286	blt::table $itk_component(plotarea) \
287	0,0 $itk_component(view) -fill both -reqwidth $w
288	blt::table configure $itk_component(plotarea) c1 -resize none
289
290	# Bindings for rotation via mouse
291	bind $itk_component(view) <ButtonPress-1> \
292	[itcl::code $this Rotate click %x %y]
293	bind $itk_component(view) <B1-Motion> \
294	[itcl::code $this Rotate drag %x %y]
295	bind $itk_component(view) <ButtonRelease-1> \
296	[itcl::code $this Rotate release %x %y]
297
298	# Bindings for panning via mouse
299	bind $itk_component(view) <ButtonPress-2> \
300	[itcl::code $this Pan click %x %y]
301	bind $itk_component(view) <B2-Motion> \
302	[itcl::code $this Pan drag %x %y]
303	bind $itk_component(view) <ButtonRelease-2> \
304	[itcl::code $this Pan release %x %y]
305
306	#bind $itk_component(view) <ButtonRelease-3> \
307	# [itcl::code $this Pick %x %y]
308
309	# Bindings for panning via keyboard
310	bind $itk_component(view) <KeyPress-Left> \
311	[itcl::code $this Pan set -10 0]
312	bind $itk_component(view) <KeyPress-Right> \
313	[itcl::code $this Pan set 10 0]
314	bind $itk_component(view) <KeyPress-Up> \
315	[itcl::code $this Pan set 0 -10]
316	bind $itk_component(view) <KeyPress-Down> \
317	[itcl::code $this Pan set 0 10]
318	bind $itk_component(view) <Shift-KeyPress-Left> \
319	[itcl::code $this Pan set -2 0]
320	bind $itk_component(view) <Shift-KeyPress-Right> \
321	[itcl::code $this Pan set 2 0]
322	bind $itk_component(view) <Shift-KeyPress-Up> \
323	[itcl::code $this Pan set 0 -2]
324	bind $itk_component(view) <Shift-KeyPress-Down> \
325	[itcl::code $this Pan set 0 2]
326
327	# Bindings for zoom via keyboard
328	bind $itk_component(view) <KeyPress-Prior> \
329	[itcl::code $this Zoom out]
330	bind $itk_component(view) <KeyPress-Next> \
331	[itcl::code $this Zoom in]
332
333	bind $itk_component(view) <Enter> "focus $itk_component(view)"
334
335	if {[string equal "x11" [tk windowingsystem]]} {
336	# Bindings for zoom via mouse
337	bind $itk_component(view) <4> [itcl::code $this Zoom out]
338	bind $itk_component(view) <5> [itcl::code $this Zoom in]
339	}
340
341	set _image(download) [image create photo]
342
343	eval itk_initialize $args
344
345	EnableWaitDialog 900
346	Connect
347	}
348
349	# ----------------------------------------------------------------------
350	# DESTRUCTOR
351	# ----------------------------------------------------------------------
352	itcl::body Rappture::VtkMeshViewer::destructor {} {
353	Disconnect
354	$_dispatcher cancel !rebuild
355	$_dispatcher cancel !resize
356	$_dispatcher cancel !rotate
357	image delete $_image(plot)
358	image delete $_image(download)
359	catch { blt::arcball destroy $_arcball }
360	}
361
362	itcl::body Rappture::VtkMeshViewer::DoResize {} {
363	if { $_width < 2 } {
364	set _width 500
365	}
366	if { $_height < 2 } {
367	set _height 500
368	}
369	set _start [clock clicks -milliseconds]
370	SendCmd "screen size $_width $_height"
371
372	set _resizePending 0
373	}
374
375	itcl::body Rappture::VtkMeshViewer::DoRotate {} {
376	SendCmd "camera orient [ViewToQuaternion]"
377	set _rotatePending 0
378	}
379
380	itcl::body Rappture::VtkMeshViewer::EventuallyResize { w h } {
381	set _width $w
382	set _height $h
383	$_arcball resize $w $h
384	if { !$_resizePending } {
385	set _resizePending 1
386	$_dispatcher event -after 200 !resize
387	}
388	}
389
390	itcl::body Rappture::VtkMeshViewer::EventuallyRotate { q } {
391	QuaternionToView $q
392	if { !$_rotatePending } {
393	set _rotatePending 1
394	$_dispatcher event -after $_rotateDelay !rotate
395	}
396	}
397
398	itcl::body Rappture::VtkMeshViewer::SetPolydataOpacity {} {
399	set _polydataOpacityPending 0
400	set val $_settings(-polydataopacity)
401	SendCmd "polydata opacity $val"
402	}
403
404	itcl::body Rappture::VtkMeshViewer::EventuallySetPolydataOpacity {} {
405	if { !$_polydataOpacityPending } {
406	set _polydataOpacityPending 1
407	$_dispatcher event -after $_opacityDelay !polydataOpacity
408	}
409	}
410
411	# ----------------------------------------------------------------------
412	# USAGE: add <dataobj> ?<settings>?
413	#
414	# Clients use this to add a data object to the plot. The optional
415	# <settings> are used to configure the plot. Allowed settings are
416	# -color, -brightness, -width, -linestyle, and -raise.
417	# ----------------------------------------------------------------------
418	itcl::body Rappture::VtkMeshViewer::add {dataobj {settings ""}} {
419	array set params {
420	-color auto
421	-width 1
422	-linestyle solid
423	-brightness 0
424	-raise 0
425	-description ""
426	-param ""
427	-type ""
428	}
429	array set params $settings
430	set params(-description) ""
431	set params(-param) ""
432	array set params $settings
433
434	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
435	# can't handle -autocolors yet
436	set params(-color) black
437	}
438	set pos [lsearch -exact $_dlist $dataobj]
439	if {$pos < 0} {
440	lappend _dlist $dataobj
441	}
442	set _obj2ovride($dataobj-color) $params(-color)
443	set _obj2ovride($dataobj-width) $params(-width)
444	set _obj2ovride($dataobj-raise) $params(-raise)
445	$_dispatcher event -idle !rebuild
446	}
447
448	# ----------------------------------------------------------------------
449	# USAGE: delete ?<dataobj1> <dataobj2> ...?
450	#
451	# Clients use this to delete a dataobj from the plot. If no dataobjs
452	# are specified, then all dataobjs are deleted. No data objects are
453	# deleted. They are only removed from the display list.
454	#
455	# ----------------------------------------------------------------------
456	itcl::body Rappture::VtkMeshViewer::delete {args} {
457	if { [llength $args] == 0} {
458	set args $_dlist
459	}
460	# Delete all specified dataobjs
461	set changed 0
462	foreach dataobj $args {
463	set pos [lsearch -exact $_dlist $dataobj]
464	if { $pos < 0 } {
465	continue; # Don't know anything about it.
466	}
467	# Remove it from the dataobj list.
468	set _dlist [lreplace $_dlist $pos $pos]
469	array unset _obj2ovride $dataobj-*
470	set changed 1
471	}
472	# If anything changed, then rebuild the plot
473	if { $changed } {
474	$_dispatcher event -idle !rebuild
475	}
476	}
477
478	# ----------------------------------------------------------------------
479	# USAGE: get ?-objects?
480	# USAGE: get ?-visible?
481	# USAGE: get ?-image view?
482	#
483	# Clients use this to query the list of objects being plotted, in
484	# order from bottom to top of this result. The optional "-image"
485	# flag can also request the internal images being shown.
486	# ----------------------------------------------------------------------
487	itcl::body Rappture::VtkMeshViewer::get {args} {
488	if {[llength $args] == 0} {
489	set args "-objects"
490	}
491
492	set op [lindex $args 0]
493	switch -- $op {
494	"-objects" {
495	# put the dataobj list in order according to -raise options
496	set dlist {}
497	foreach dataobj $_dlist {
498	if { ![IsValidObject $dataobj] } {
499	continue
500	}
501	if {[info exists _obj2ovride($dataobj-raise)] &&
502	$_obj2ovride($dataobj-raise)} {
503	set dlist [linsert $dlist 0 $dataobj]
504	} else {
505	lappend dlist $dataobj
506	}
507	}
508	return $dlist
509	}
510	"-visible" {
511	set dlist {}
512	foreach dataobj $_dlist {
513	if { ![IsValidObject $dataobj] } {
514	continue
515	}
516	if { ![info exists _obj2ovride($dataobj-raise)] } {
517	# No setting indicates that the object isn't visible.
518	continue
519	}
520	# Otherwise use the -raise parameter to put the object to
521	# the front of the list.
522	if { $_obj2ovride($dataobj-raise) } {
523	set dlist [linsert $dlist 0 $dataobj]
524	} else {
525	lappend dlist $dataobj
526	}
527	}
528	return $dlist
529	}
530	-image {
531	if {[llength $args] != 2} {
532	error "wrong # args: should be \"get -image view\""
533	}
534	switch -- [lindex $args end] {
535	view {
536	return $_image(plot)
537	}
538	default {
539	error "bad image name \"[lindex $args end]\": should be view"
540	}
541	}
542	}
543	default {
544	error "bad option \"$op\": should be -objects or -image"
545	}
546	}
547	}
548
549	# ----------------------------------------------------------------------
550	# USAGE: scale ?<data1> <data2> ...?
551	#
552	# Sets the default limits for the overall plot according to the
553	# limits of the data for all of the given <data> objects. This
554	# accounts for all objects--even those not showing on the screen.
555	# Because of this, the limits are appropriate for all objects as
556	# the user scans through data in the ResultSet viewer.
557	# ----------------------------------------------------------------------
558	itcl::body Rappture::VtkMeshViewer::scale {args} {
559	foreach dataobj $args {
560	array set bounds [limits $dataobj]
561	if {![info exists _limits(xmin)] \|\| $_limits(xmin) > $bounds(xmin)} {
562	set _limits(xmin) $bounds(xmin)
563	}
564	if {![info exists _limits(xmax)] \|\| $_limits(xmax) < $bounds(xmax)} {
565	set _limits(xmax) $bounds(xmax)
566	}
567
568	if {![info exists _limits(ymin)] \|\| $_limits(ymin) > $bounds(ymin)} {
569	set _limits(ymin) $bounds(ymin)
570	}
571	if {![info exists _limits(ymax)] \|\| $_limits(ymax) < $bounds(ymax)} {
572	set _limits(ymax) $bounds(ymax)
573	}
574
575	if {![info exists _limits(zmin)] \|\| $_limits(zmin) > $bounds(zmin)} {
576	set _limits(zmin) $bounds(zmin)
577	}
578	if {![info exists _limits(zmax)] \|\| $_limits(zmax) < $bounds(zmax)} {
579	set _limits(zmax) $bounds(zmax)
580	}
581	}
582	}
583
584	# ----------------------------------------------------------------------
585	# USAGE: download coming
586	# USAGE: download controls <downloadCommand>
587	# USAGE: download now
588	#
589	# Clients use this method to create a downloadable representation
590	# of the plot. Returns a list of the form {ext string}, where
591	# "ext" is the file extension (indicating the type of data) and
592	# "string" is the data itself.
593	# ----------------------------------------------------------------------
594	itcl::body Rappture::VtkMeshViewer::download {option args} {
595	switch $option {
596	coming {
597	if {[catch {
598	blt::winop snap $itk_component(plotarea) $_image(download)
599	}]} {
600	$_image(download) configure -width 1 -height 1
601	$_image(download) put #000000
602	}
603	}
604	controls {
605	set popup .vtkviewerdownload
606	if { ![winfo exists .vtkviewerdownload] } {
607	set inner [BuildDownloadPopup $popup [lindex $args 0]]
608	} else {
609	set inner [$popup component inner]
610	}
611	set _downloadPopup(image_controls) $inner.image_frame
612	set num [llength [get]]
613	set num [expr {($num == 1) ? "1 result" : "$num results"}]
614	set word [Rappture::filexfer::label downloadWord]
615	$inner.summary configure -text "$word $num in the following format:"
616	update idletasks ;# Fix initial sizes
617	return $popup
618	}
619	now {
620	set popup .vtkviewerdownload
621	if {[winfo exists .vtkviewerdownload]} {
622	$popup deactivate
623	}
624	switch -- $_downloadPopup(format) {
625	"image" {
626	return [$this GetImage [lindex $args 0]]
627	}
628	"vtk" {
629	return [$this GetVtkData [lindex $args 0]]
630	}
631	}
632	return ""
633	}
634	default {
635	error "bad option \"$option\": should be coming, controls, now"
636	}
637	}
638	}
639
640	# ----------------------------------------------------------------------
641	# USAGE: Connect ?<host:port>,<host:port>...?
642	#
643	# Clients use this method to establish a connection to a new
644	# server, or to reestablish a connection to the previous server.
645	# Any existing connection is automatically closed.
646	# ----------------------------------------------------------------------
647	itcl::body Rappture::VtkMeshViewer::Connect {} {
648	global readyForNextFrame
649	set readyForNextFrame 1
650	set _hosts [GetServerList "vtkvis"]
651	if { "" == $_hosts } {
652	return 0
653	}
654	set result [VisViewer::Connect $_hosts]
655	if { $result } {
656	if { $_reportClientInfo } {
657	# Tell the server the viewer, hub, user and session.
658	# Do this immediately on connect before buffering any commands
659	global env
660
661	set info {}
662	set user "???"
663	if { [info exists env(USER)] } {
664	set user $env(USER)
665	}
666	set session "???"
667	if { [info exists env(SESSION)] } {
668	set session $env(SESSION)
669	}
670	lappend info "version" "$Rappture::version"
671	lappend info "build" "$Rappture::build"
672	lappend info "svnurl" "$Rappture::svnurl"
673	lappend info "installdir" "$Rappture::installdir"
674	lappend info "hub" [exec hostname]
675	lappend info "client" "vtkmeshviewer"
676	lappend info "user" $user
677	lappend info "session" $session
678	SendCmd "clientinfo [list $info]"
679	}
680
681	set w [winfo width $itk_component(view)]
682	set h [winfo height $itk_component(view)]
683	EventuallyResize $w $h
684	}
685	return $result
686	}
687
688	#
689	# isconnected --
690	#
691	# Indicates if we are currently connected to the visualization server.
692	#
693	itcl::body Rappture::VtkMeshViewer::isconnected {} {
694	return [VisViewer::IsConnected]
695	}
696
697	#
698	# disconnect --
699	#
700	itcl::body Rappture::VtkMeshViewer::disconnect {} {
701	Disconnect
702	set _reset 1
703	}
704
705	#
706	# Disconnect --
707	#
708	# Clients use this method to disconnect from the current rendering
709	# server.
710	#
711	itcl::body Rappture::VtkMeshViewer::Disconnect {} {
712	VisViewer::Disconnect
713
714	# disconnected -- no more data sitting on server
715	array unset _datasets
716	array unset _data
717	global readyForNextFrame
718	set readyForNextFrame 1
719	}
720
721	# ----------------------------------------------------------------------
722	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
723	#
724	# Invoked automatically whenever the "image" command comes in from
725	# the rendering server. Indicates that binary image data with the
726	# specified <size> will follow.
727	# ----------------------------------------------------------------------
728	itcl::body Rappture::VtkMeshViewer::ReceiveImage { args } {
729	global readyForNextFrame
730	set readyForNextFrame 1
731	array set info {
732	-token "???"
733	-bytes 0
734	-type image
735	}
736	array set info $args
737	set bytes [ReceiveBytes $info(-bytes)]
738	if { $info(-type) == "image" } {
739	if 0 {
740	set f [open "last.ppm" "w"]
741	fconfigure $f -encoding binary
742	puts -nonewline $f $bytes
743	close $f
744	}
745	$_image(plot) configure -data $bytes
746	set time [clock seconds]
747	set date [clock format $time]
748	if { $_start > 0 } {
749	set finish [clock clicks -milliseconds]
750	set _start 0
751	}
752	} elseif { $info(type) == "print" } {
753	set tag $this-print-$info(-token)
754	set _hardcopy($tag) $bytes
755	}
756	}
757
758	#
759	# ReceiveDataset --
760	#
761	itcl::body Rappture::VtkMeshViewer::ReceiveDataset { args } {
762	if { ![isconnected] } {
763	return
764	}
765	set option [lindex $args 0]
766	switch -- $option {
767	"scalar" {
768	set option [lindex $args 1]
769	switch -- $option {
770	"world" {
771	foreach { x y z value tag } [lrange $args 2 end] break
772	}
773	"pixel" {
774	foreach { x y value tag } [lrange $args 2 end] break
775	}
776	}
777	}
778	"vector" {
779	set option [lindex $args 1]
780	switch -- $option {
781	"world" {
782	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
783	}
784	"pixel" {
785	foreach { x y vx vy vz tag } [lrange $args 2 end] break
786	}
787	}
788	}
789	"names" {
790	foreach { name } [lindex $args 1] {
791	#puts stderr "Dataset: $name"
792	}
793	}
794	default {
795	error "unknown dataset option \"$option\" from server"
796	}
797	}
798	}
799
800	# ----------------------------------------------------------------------
801	# USAGE: Rebuild
802	#
803	# Called automatically whenever something changes that affects the
804	# data in the widget. Clears any existing data and rebuilds the
805	# widget to display new data.
806	# ----------------------------------------------------------------------
807	itcl::body Rappture::VtkMeshViewer::Rebuild {} {
808	set w [winfo width $itk_component(view)]
809	set h [winfo height $itk_component(view)]
810	if { $w < 2 \|\| $h < 2 } {
811	update
812	$_dispatcher event -idle !rebuild
813	return
814	}
815
816	# Turn on buffering of commands to the server. We don't want to
817	# be preempted by a server disconnect/reconnect (which automatically
818	# generates a new call to Rebuild).
819	StartBufferingCommands
820
821	if { $_reset } {
822	set _width $w
823	set _height $h
824	$_arcball resize $w $h
825	DoResize
826	InitSettings -xgrid -ygrid -zgrid -axismode \
827	-axesvisible -axislabels -axisminorticks
828	StopBufferingCommands
829	SendCmd "imgflush"
830	StartBufferingCommands
831	}
832
833	set _limits(zmin) ""
834	set _limits(zmax) ""
835	set _first ""
836	SendCmd "dataset visible 0"
837	set count 0
838	foreach dataobj [get -objects] {
839	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
840	set _first $dataobj
841	}
842	set _obj2datasets($dataobj) ""
843	set tag $dataobj
844	if { ![info exists _datasets($tag)] } {
845	set bytes [$dataobj vtkdata -full]
846	if { $bytes == "" } {
847	continue
848	}
849	if 0 {
850	set f [open /tmp/vtkmesh.vtk "w"]
851	fconfigure $f -translation binary -encoding binary
852	puts -nonewline $f $bytes
853	close $f
854	}
855	set length [string length $bytes]
856	if { $_reportClientInfo } {
857	set info {}
858	lappend info "tool_id" [$dataobj hints toolid]
859	lappend info "tool_name" [$dataobj hints toolname]
860	lappend info "tool_title" [$dataobj hints tooltitle]
861	lappend info "tool_command" [$dataobj hints toolcommand]
862	lappend info "tool_revision" [$dataobj hints toolrevision]
863	lappend info "dataset_label" [$dataobj hints label]
864	lappend info "dataset_size" $length
865	lappend info "dataset_tag" $tag
866	SendCmd "clientinfo [list $info]"
867	}
868	SendCmd "dataset add $tag data follows $length"
869	append _outbuf $bytes
870	set _datasets($tag) 1
871	SetObjectStyle $dataobj
872	}
873	lappend _obj2datasets($dataobj) $tag
874	if { [info exists _obj2ovride($dataobj-raise)] } {
875	SendCmd "dataset visible 1 $tag"
876	EventuallySetPolydataOpacity
877	}
878	}
879	if {"" != $_first} {
880	set location [$_first hints camera]
881	if { $location != "" } {
882	array set view $location
883	}
884
885	foreach axis { x y z } {
886	set label [$_first label ${axis}]
887	if { $label != "" } {
888	SendCmd [list axis name $axis $label]
889	}
890	set units [$_first units ${axis}]
891	if { $units != "" } {
892	SendCmd [list axis units $axis $units]
893	}
894	}
895	}
896	InitSettings -outline
897	if { $_reset } {
898	# These are settings that rely on a dataset being loaded.
899	InitSettings -polydataedges -polydatalighting -polydataopacity \
900	-polydatavisible -polydatawireframe
901
902	#SendCmd "axis lformat all %g"
903
904	$_arcball quaternion [ViewToQuaternion]
905	SendCmd "camera reset"
906	if { $_view(-ortho)} {
907	SendCmd "camera mode ortho"
908	} else {
909	SendCmd "camera mode persp"
910	}
911	DoRotate
912	PanCamera
913	Zoom reset
914	}
915
916	set _reset 0
917	global readyForNextFrame
918	set readyForNextFrame 0; # Don't advance to the next frame
919	# until we get an image.
920
921	# Actually write the commands to the server socket. If it fails, we don't
922	# care. We're finished here.
923	blt::busy hold $itk_component(hull)
924	StopBufferingCommands
925	blt::busy release $itk_component(hull)
926	}
927
928	# ----------------------------------------------------------------------
929	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
930	#
931	# Returns a list of server IDs for the current datasets being displayed. This
932	# is normally a single ID, but it might be a list of IDs if the current data
933	# object has multiple components.
934	# ----------------------------------------------------------------------
935	itcl::body Rappture::VtkMeshViewer::CurrentDatasets {args} {
936	set flag [lindex $args 0]
937	switch -- $flag {
938	"-all" {
939	if { [llength $args] > 1 } {
940	error "CurrentDatasets: can't specify dataobj after \"-all\""
941	}
942	set dlist [get -objects]
943	}
944	"-visible" {
945	if { [llength $args] > 1 } {
946	set dlist {}
947	set args [lrange $args 1 end]
948	foreach dataobj $args {
949	if { [info exists _obj2ovride($dataobj-raise)] } {
950	lappend dlist $dataobj
951	}
952	}
953	} else {
954	set dlist [get -visible]
955	}
956	}
957	default {
958	set dlist $args
959	}
960	}
961	set rlist ""
962	foreach tag $dlist {
963	if { [info exists _datasets($tag)] && $_datasets($tag) } {
964	lappend rlist $tag
965	}
966	}
967	return $rlist
968	}
969
970	# ----------------------------------------------------------------------
971	# USAGE: Zoom in
972	# USAGE: Zoom out
973	# USAGE: Zoom reset
974	#
975	# Called automatically when the user clicks on one of the zoom
976	# controls for this widget. Changes the zoom for the current view.
977	# ----------------------------------------------------------------------
978	itcl::body Rappture::VtkMeshViewer::Zoom {option} {
979	switch -- $option {
980	"in" {
981	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
982	SendCmd "camera zoom $_view(-zoom)"
983	}
984	"out" {
985	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
986	SendCmd "camera zoom $_view(-zoom)"
987	}
988	"reset" {
989	array set _view {
990	-qw 0.853553
991	-qx -0.353553
992	-qy 0.353553
993	-qz 0.146447
994	-xpan 0
995	-ypan 0
996	-zoom 1.0
997	}
998	if { $_first != "" } {
999	set location [$_first hints camera]
1000	if { $location != "" } {
1001	array set _view $location
1002	}
1003	}
1004	$_arcball quaternion [ViewToQuaternion]
1005	DoRotate
1006	SendCmd "camera reset"
1007	}
1008	}
1009	}
1010
1011	itcl::body Rappture::VtkMeshViewer::PanCamera {} {
1012	set x $_view(-xpan)
1013	set y $_view(-ypan)
1014	SendCmd "camera pan $x $y"
1015	}
1016
1017	# ----------------------------------------------------------------------
1018	# USAGE: Rotate click <x> <y>
1019	# USAGE: Rotate drag <x> <y>
1020	# USAGE: Rotate release <x> <y>
1021	#
1022	# Called automatically when the user clicks/drags/releases in the
1023	# plot area. Moves the plot according to the user's actions.
1024	# ----------------------------------------------------------------------
1025	itcl::body Rappture::VtkMeshViewer::Rotate {option x y} {
1026	switch -- $option {
1027	"click" {
1028	$itk_component(view) configure -cursor fleur
1029	set _click(x) $x
1030	set _click(y) $y
1031	}
1032	"drag" {
1033	if {[array size _click] == 0} {
1034	Rotate click $x $y
1035	} else {
1036	set w [winfo width $itk_component(view)]
1037	set h [winfo height $itk_component(view)]
1038	if {$w <= 0 \|\| $h <= 0} {
1039	return
1040	}
1041
1042	if {[catch {
1043	# this fails sometimes for no apparent reason
1044	set dx [expr {double($x-$_click(x))/$w}]
1045	set dy [expr {double($y-$_click(y))/$h}]
1046	}]} {
1047	return
1048	}
1049	if { $dx == 0 && $dy == 0 } {
1050	return
1051	}
1052	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1053	EventuallyRotate $q
1054	set _click(x) $x
1055	set _click(y) $y
1056	}
1057	}
1058	"release" {
1059	Rotate drag $x $y
1060	$itk_component(view) configure -cursor ""
1061	catch {unset _click}
1062	}
1063	default {
1064	error "bad option \"$option\": should be click, drag, release"
1065	}
1066	}
1067	}
1068
1069	itcl::body Rappture::VtkMeshViewer::Pick {x y} {
1070	foreach tag [CurrentDatasets -visible] {
1071	SendCmd "dataset getscalar pixel $x $y $tag"
1072	}
1073	}
1074
1075	# ----------------------------------------------------------------------
1076	# USAGE: $this Pan click x y
1077	# $this Pan drag x y
1078	# $this Pan release x y
1079	#
1080	# Called automatically when the user clicks on one of the zoom
1081	# controls for this widget. Changes the zoom for the current view.
1082	# ----------------------------------------------------------------------
1083	itcl::body Rappture::VtkMeshViewer::Pan {option x y} {
1084	switch -- $option {
1085	"set" {
1086	set w [winfo width $itk_component(view)]
1087	set h [winfo height $itk_component(view)]
1088	set x [expr $x / double($w)]
1089	set y [expr $y / double($h)]
1090	set _view(-xpan) [expr $_view(-xpan) + $x]
1091	set _view(-ypan) [expr $_view(-ypan) + $y]
1092	PanCamera
1093	return
1094	}
1095	"click" {
1096	set _click(x) $x
1097	set _click(y) $y
1098	$itk_component(view) configure -cursor hand1
1099	}
1100	"drag" {
1101	if { ![info exists _click(x)] } {
1102	set _click(x) $x
1103	}
1104	if { ![info exists _click(y)] } {
1105	set _click(y) $y
1106	}
1107	set w [winfo width $itk_component(view)]
1108	set h [winfo height $itk_component(view)]
1109	set dx [expr ($_click(x) - $x)/double($w)]
1110	set dy [expr ($_click(y) - $y)/double($h)]
1111	set _click(x) $x
1112	set _click(y) $y
1113	set _view(-xpan) [expr $_view(-xpan) - $dx]
1114	set _view(-ypan) [expr $_view(-ypan) - $dy]
1115	PanCamera
1116	}
1117	"release" {
1118	Pan drag $x $y
1119	$itk_component(view) configure -cursor ""
1120	}
1121	default {
1122	error "unknown option \"$option\": should set, click, drag, or release"
1123	}
1124	}
1125	}
1126
1127	# ----------------------------------------------------------------------
1128	# USAGE: InitSettings <what> ?<value>?
1129	#
1130	# Used internally to update rendering settings whenever parameters
1131	# change in the popup settings panel. Sends the new settings off
1132	# to the back end.
1133	# ----------------------------------------------------------------------
1134	itcl::body Rappture::VtkMeshViewer::InitSettings { args } {
1135	foreach setting $args {
1136	AdjustSetting $setting
1137	}
1138	}
1139
1140	#
1141	# AdjustSetting --
1142	#
1143	# Changes/updates a specific setting in the widget. There are
1144	# usually user-setable option. Commands are sent to the render
1145	# server.
1146	#
1147	itcl::body Rappture::VtkMeshViewer::AdjustSetting {what {value ""}} {
1148	if { ![isconnected] } {
1149	return
1150	}
1151	switch -- $what {
1152	"-outline" {
1153	set bool $_settings($what)
1154	# Only display a outline for the currently visible sets.
1155	SendCmd "outline visible 0"
1156	foreach dataset [CurrentDatasets -visible] {
1157	SendCmd "outline visible $bool $dataset"
1158	}
1159	}
1160	"-polydataopacity" {
1161	set _settings($what) [expr $_widget($what) * 0.01]
1162	EventuallySetPolydataOpacity
1163	}
1164	"-polydatawireframe" {
1165	set bool $_settings($what)
1166	SendCmd "polydata wireframe $bool"
1167	}
1168	"-polydatavisible" {
1169	set bool $_settings($what)
1170	# Only change visibility of data sets marked "visible".
1171	foreach dataset [CurrentDatasets -visible] {
1172	SendCmd "polydata visible $bool $dataset"
1173	}
1174	}
1175	"-polydatalighting" {
1176	set bool $_settings($what)
1177	SendCmd "polydata lighting $bool"
1178	}
1179	"-polydataedges" {
1180	set bool $_settings($what)
1181	SendCmd "polydata edges $bool"
1182	}
1183	"-axesvisible" {
1184	set bool $_settings($what)
1185	SendCmd "axis visible all $bool"
1186	}
1187	"-axislabels" {
1188	set bool $_settings($what)
1189	SendCmd "axis labels all $bool"
1190	}
1191	"-axisminorticks" {
1192	set bool $_settings($what)
1193	SendCmd "axis minticks all $bool"
1194	}
1195	"-xgrid" {
1196	set bool $_settings($what)
1197	SendCmd "axis grid x $bool"
1198	}
1199	"-ygrid" {
1200	set bool $_settings($what)
1201	SendCmd "axis grid y $bool"
1202	}
1203	"-zgrid" {
1204	set bool $_settings($what)
1205	SendCmd "axis grid z $bool"
1206	}
1207	"-axismode" {
1208	set mode [$itk_component(axismode) value]
1209	set mode [$itk_component(axismode) translate $mode]
1210	SendCmd "axis flymode $mode"
1211	}
1212	default {
1213	error "don't know how to fix $what"
1214	}
1215	}
1216	}
1217
1218	# ----------------------------------------------------------------------
1219	# CONFIGURATION OPTION: -plotbackground
1220	# ----------------------------------------------------------------------
1221	itcl::configbody Rappture::VtkMeshViewer::plotbackground {
1222	if { [isconnected] } {
1223	set rgb [Color2RGB $itk_option(-plotbackground)]
1224	SendCmd "screen bgcolor $rgb"
1225	}
1226	}
1227
1228	# ----------------------------------------------------------------------
1229	# CONFIGURATION OPTION: -plotforeground
1230	# ----------------------------------------------------------------------
1231	itcl::configbody Rappture::VtkMeshViewer::plotforeground {
1232	if { [isconnected] } {
1233	set rgb [Color2RGB $itk_option(-plotforeground)]
1234	SendCmd "axis color all $rgb"
1235	SendCmd "outline color $rgb"
1236	}
1237	}
1238
1239	itcl::body Rappture::VtkMeshViewer::limits { dataobj } {
1240	set tag $dataobj
1241	if { ![info exists _limits($tag)] } {
1242	set data [$dataobj vtkdata -full]
1243	if { $data == "" } {
1244	continue
1245	}
1246	set tmpfile file[pid].vtk
1247	set f [open "$tmpfile" "w"]
1248	fconfigure $f -translation binary -encoding binary
1249	puts $f $data
1250	close $f
1251	set reader [vtkDataSetReader $tag-xvtkDataSetReader]
1252	$reader SetFileName $tmpfile
1253	$reader Update
1254	file delete $tmpfile
1255	set output [$reader GetOutput]
1256	set _limits($tag) [$output GetBounds]
1257	rename $output ""
1258	rename $reader ""
1259	}
1260	foreach { xMin xMax yMin yMax zMin zMax} $_limits($tag) break
1261	if {![info exists limits(xmin)] \|\| $limits(xmin) > $xMin} {
1262	set limits(xmin) $xMin
1263	}
1264	if {![info exists limits(xmax)] \|\| $limits(xmax) < $xMax} {
1265	set limits(xmax) $xMax
1266	}
1267	if {![info exists limits(ymin)] \|\| $limits(ymin) > $yMin} {
1268	set limits(ymin) $xMin
1269	}
1270	if {![info exists limits(ymax)] \|\| $limits(ymax) < $yMax} {
1271	set limits(ymax) $yMax
1272	}
1273	if {![info exists limits(zmin)] \|\| $limits(zmin) > $zMin} {
1274	set limits(zmin) $zMin
1275	}
1276	if {![info exists limits(zmax)] \|\| $limits(zmax) < $zMax} {
1277	set limits(zmax) $zMax
1278	}
1279
1280	return [array get limits]
1281	}
1282
1283	itcl::body Rappture::VtkMeshViewer::BuildPolydataTab {} {
1284
1285	set fg [option get $itk_component(hull) font Font]
1286	#set bfg [option get $itk_component(hull) boldFont Font]
1287
1288	set inner [$itk_component(main) insert end \
1289	-title "Mesh Settings" \
1290	-icon [Rappture::icon mesh]]
1291	$inner configure -borderwidth 4
1292
1293	checkbutton $inner.mesh \
1294	-text "Show Mesh" \
1295	-variable [itcl::scope _settings(-polydatavisible)] \
1296	-command [itcl::code $this AdjustSetting -polydatavisible] \
1297	-font "Arial 9" -anchor w
1298
1299	checkbutton $inner.outline \
1300	-text "Show Outline" \
1301	-variable [itcl::scope _settings(-outline)] \
1302	-command [itcl::code $this AdjustSetting -outline] \
1303	-font "Arial 9" -anchor w
1304
1305	checkbutton $inner.wireframe \
1306	-text "Show Wireframe" \
1307	-variable [itcl::scope _settings(-polydatawireframe)] \
1308	-command [itcl::code $this AdjustSetting -polydatawireframe] \
1309	-font "Arial 9" -anchor w
1310
1311	checkbutton $inner.lighting \
1312	-text "Enable Lighting" \
1313	-variable [itcl::scope _settings(-polydatalighting)] \
1314	-command [itcl::code $this AdjustSetting -polydatalighting] \
1315	-font "Arial 9" -anchor w
1316
1317	checkbutton $inner.edges \
1318	-text "Show Edges" \
1319	-variable [itcl::scope _settings(-polydataedges)] \
1320	-command [itcl::code $this AdjustSetting -polydataedges] \
1321	-font "Arial 9" -anchor w
1322
1323	itk_component add field_l {
1324	label $inner.field_l -text "Field" -font "Arial 9"
1325	} {
1326	ignore -font
1327	}
1328	itk_component add field {
1329	Rappture::Combobox $inner.field -width 10 -editable no
1330	}
1331	bind $inner.field <<Value>> \
1332	[itcl::code $this AdjustSetting -field]
1333
1334	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1335	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1336	-variable [itcl::scope _widget(-polydataopacity)] \
1337	-width 10 \
1338	-showvalue off \
1339	-command [itcl::code $this AdjustSetting -polydataopacity]
1340	$inner.opacity set [expr $_settings(-polydataopacity) * 100.0]
1341
1342	blt::table $inner \
1343	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1344	1,0 $inner.outline -cspan 2 -anchor w -pady 2 \
1345	2,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1346	3,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1347	4,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1348	5,0 $inner.opacity_l -anchor w -pady 2 \
1349	5,1 $inner.opacity -fill x -pady 2
1350
1351	blt::table configure $inner r* c* -resize none
1352	blt::table configure $inner r7 c1 -resize expand
1353	}
1354
1355	itcl::body Rappture::VtkMeshViewer::BuildAxisTab {} {
1356
1357	set fg [option get $itk_component(hull) font Font]
1358	#set bfg [option get $itk_component(hull) boldFont Font]
1359
1360	set inner [$itk_component(main) insert end \
1361	-title "Axis Settings" \
1362	-icon [Rappture::icon axis2]]
1363	$inner configure -borderwidth 4
1364
1365	checkbutton $inner.visible \
1366	-text "Axes" \
1367	-variable [itcl::scope _settings(-axesvisible)] \
1368	-command [itcl::code $this AdjustSetting -axesvisible] \
1369	-font "Arial 9"
1370
1371	checkbutton $inner.labels \
1372	-text "Axis Labels" \
1373	-variable [itcl::scope _settings(-axislabels)] \
1374	-command [itcl::code $this AdjustSetting -axislabels] \
1375	-font "Arial 9"
1376	label $inner.grid_l -text "Grid" -font "Arial 9"
1377	checkbutton $inner.xgrid \
1378	-text "X" \
1379	-variable [itcl::scope _settings(-xgrid)] \
1380	-command [itcl::code $this AdjustSetting -xgrid] \
1381	-font "Arial 9"
1382	checkbutton $inner.ygrid \
1383	-text "Y" \
1384	-variable [itcl::scope _settings(-ygrid)] \
1385	-command [itcl::code $this AdjustSetting -ygrid] \
1386	-font "Arial 9"
1387	checkbutton $inner.zgrid \
1388	-text "Z" \
1389	-variable [itcl::scope _settings(-zgrid)] \
1390	-command [itcl::code $this AdjustSetting -zgrid] \
1391	-font "Arial 9"
1392	checkbutton $inner.minorticks \
1393	-text "Minor Ticks" \
1394	-variable [itcl::scope _settings(-axisminorticks)] \
1395	-command [itcl::code $this AdjustSetting -axisminorticks] \
1396	-font "Arial 9"
1397
1398	label $inner.mode_l -text "Mode" -font "Arial 9"
1399
1400	itk_component add axismode {
1401	Rappture::Combobox $inner.mode -width 10 -editable no
1402	}
1403	$inner.mode choices insert end \
1404	"static_triad" "static" \
1405	"closest_triad" "closest" \
1406	"furthest_triad" "farthest" \
1407	"outer_edges" "outer"
1408	$itk_component(axismode) value "static"
1409	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1410
1411	blt::table $inner \
1412	0,0 $inner.visible -anchor w -cspan 4 \
1413	1,0 $inner.labels -anchor w -cspan 4 \
1414	2,0 $inner.minorticks -anchor w -cspan 4 \
1415	4,0 $inner.grid_l -anchor w \
1416	4,1 $inner.xgrid -anchor w \
1417	4,2 $inner.ygrid -anchor w \
1418	4,3 $inner.zgrid -anchor w \
1419	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1420	5,1 $inner.mode -fill x -cspan 3
1421
1422	blt::table configure $inner r* c* -resize none
1423	blt::table configure $inner r7 c6 -resize expand
1424	blt::table configure $inner r3 -height 0.125i
1425	}
1426
1427	itcl::body Rappture::VtkMeshViewer::BuildCameraTab {} {
1428	set inner [$itk_component(main) insert end \
1429	-title "Camera Settings" \
1430	-icon [Rappture::icon camera]]
1431	$inner configure -borderwidth 4
1432
1433	label $inner.view_l -text "view" -font "Arial 9"
1434	set f [frame $inner.view]
1435	foreach side { front back left right top bottom } {
1436	button $f.$side -image [Rappture::icon view$side] \
1437	-command [itcl::code $this SetOrientation $side]
1438	Rappture::Tooltip::for $f.$side "Change the view to $side"
1439	pack $f.$side -side left
1440	}
1441
1442	blt::table $inner \
1443	0,0 $inner.view_l -anchor e -pady 2 \
1444	0,1 $inner.view -anchor w -pady 2
1445	blt::table configure $inner r0 -resize none
1446
1447	set labels { qx qy qz qw xpan ypan zoom }
1448	set row 1
1449	foreach tag $labels {
1450	label $inner.${tag}label -text $tag -font "Arial 9"
1451	entry $inner.${tag} -font "Arial 9" -bg white \
1452	-textvariable [itcl::scope _view(-$tag)]
1453	bind $inner.${tag} <Return> \
1454	[itcl::code $this camera set -${tag}]
1455	bind $inner.${tag} <KP_Enter> \
1456	[itcl::code $this camera set -${tag}]
1457	blt::table $inner \
1458	$row,0 $inner.${tag}label -anchor e -pady 2 \
1459	$row,1 $inner.${tag} -anchor w -pady 2
1460	blt::table configure $inner r$row -resize none
1461	incr row
1462	}
1463	checkbutton $inner.ortho \
1464	-text "Orthographic Projection" \
1465	-variable [itcl::scope _view(-ortho)] \
1466	-command [itcl::code $this camera set -ortho] \
1467	-font "Arial 9"
1468	blt::table $inner \
1469	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1470	blt::table configure $inner r$row -resize none
1471	incr row
1472
1473	blt::table configure $inner c* -resize none
1474	blt::table configure $inner c2 -resize expand
1475	blt::table configure $inner r$row -resize expand
1476	}
1477
1478	#
1479	# camera --
1480	#
1481	itcl::body Rappture::VtkMeshViewer::camera {option args} {
1482	switch -- $option {
1483	"show" {
1484	puts [array get _view]
1485	}
1486	"set" {
1487	set what [lindex $args 0]
1488	set x $_view($what)
1489	set code [catch { string is double $x } result]
1490	if { $code != 0 \|\| !$result } {
1491	return
1492	}
1493	switch -- $what {
1494	"-ortho" {
1495	if {$_view($what)} {
1496	SendCmd "camera mode ortho"
1497	} else {
1498	SendCmd "camera mode persp"
1499	}
1500	}
1501	"-xpan" - "-ypan" {
1502	PanCamera
1503	}
1504	"-qx" - "-qy" - "-qz" - "-qw" {
1505	set q [ViewToQuaternion]
1506	$_arcball quaternion $q
1507	EventuallyRotate $q
1508	}
1509	"-zoom" {
1510	SendCmd "camera zoom $_view($what)"
1511	}
1512	}
1513	}
1514	}
1515	}
1516
1517	itcl::body Rappture::VtkMeshViewer::GetVtkData { args } {
1518	set bytes ""
1519	foreach dataobj [get] {
1520	set contents [$dataobj vtkdata -full]
1521	append bytes "$contents\n"
1522	}
1523	return [list .vtk $bytes]
1524	}
1525
1526	itcl::body Rappture::VtkMeshViewer::GetImage { args } {
1527	if { [image width $_image(download)] > 0 &&
1528	[image height $_image(download)] > 0 } {
1529	set bytes [$_image(download) data -format "jpeg -quality 100"]
1530	set bytes [Rappture::encoding::decode -as b64 $bytes]
1531	return [list .jpg $bytes]
1532	}
1533	return ""
1534	}
1535
1536	itcl::body Rappture::VtkMeshViewer::BuildDownloadPopup { popup command } {
1537	Rappture::Balloon $popup \
1538	-title "[Rappture::filexfer::label downloadWord] as..."
1539	set inner [$popup component inner]
1540	label $inner.summary -text "" -anchor w
1541	radiobutton $inner.vtk_button -text "VTK data file" \
1542	-variable [itcl::scope _downloadPopup(format)] \
1543	-font "Helvetica 9 " \
1544	-value vtk
1545	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
1546	radiobutton $inner.image_button -text "Image File" \
1547	-variable [itcl::scope _downloadPopup(format)] \
1548	-value image
1549	Rappture::Tooltip::for $inner.image_button \
1550	"Save as digital image."
1551
1552	button $inner.ok -text "Save" \
1553	-highlightthickness 0 -pady 2 -padx 3 \
1554	-command $command \
1555	-compound left \
1556	-image [Rappture::icon download]
1557
1558	button $inner.cancel -text "Cancel" \
1559	-highlightthickness 0 -pady 2 -padx 3 \
1560	-command [list $popup deactivate] \
1561	-compound left \
1562	-image [Rappture::icon cancel]
1563
1564	blt::table $inner \
1565	0,0 $inner.summary -cspan 2 \
1566	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
1567	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
1568	4,1 $inner.cancel -width .9i -fill y \
1569	4,0 $inner.ok -padx 2 -width .9i -fill y
1570	blt::table configure $inner r3 -height 4
1571	blt::table configure $inner r4 -pady 4
1572	raise $inner.image_button
1573	$inner.vtk_button invoke
1574	return $inner
1575	}
1576
1577	itcl::body Rappture::VtkMeshViewer::SetObjectStyle { dataobj } {
1578	# Parse style string.
1579	set tag $dataobj
1580	set type [$dataobj type]
1581
1582	array set style {
1583	-cloudstyle mesh
1584	-color white
1585	-edgecolor black
1586	-edges 1
1587	-lighting 1
1588	-linewidth 1.0
1589	-opacity 1.0
1590	-outline 0
1591	-visible 1
1592	-wireframe 0
1593	}
1594	if { $dataobj != $_first } {
1595	set style(-wireframe) 1
1596	}
1597	if {$type == "cloud"} {
1598	set style(-cloudstyle) points
1599	set style(-edges) 0
1600	set style(-edgecolor) white
1601	}
1602	array set style [$dataobj hints style]
1603
1604	if {[$dataobj hints color] != ""} {
1605	set style(-color) [$dataobj hints color]
1606	}
1607	SendCmd "outline add $tag"
1608	SendCmd "outline color [Color2RGB $style(-color)] $tag"
1609	SendCmd "outline visible $style(-outline) $tag"
1610	set _settings(-outline) $style(-outline)
1611
1612	SendCmd "polydata add $tag"
1613	SendCmd "polydata visible $style(-visible) $tag"
1614	set _settings(-polydatavisible) $style(-visible)
1615	SendCmd "polydata cloudstyle $style(-cloudstyle) $tag"
1616	SendCmd "polydata edges $style(-edges) $tag"
1617	set _settings(-polydataedges) $style(-edges)
1618	SendCmd "polydata color [Color2RGB $style(-color)] $tag"
1619	SendCmd "polydata lighting $style(-lighting) $tag"
1620	set _settings(-polydatalighting) $style(-lighting)
1621	SendCmd "polydata linecolor [Color2RGB $style(-edgecolor)] $tag"
1622	SendCmd "polydata linewidth $style(-linewidth) $tag"
1623	SendCmd "polydata opacity $style(-opacity) $tag"
1624	set _settings(-polydataopacity) $style(-opacity)
1625	set _widget(-polydataopacity) [expr 100.0 * $style(-opacity)]
1626	SendCmd "polydata wireframe $style(-wireframe) $tag"
1627	set _settings(-polydatawireframe) $style(-wireframe)
1628	set havePolyData 1
1629	}
1630
1631	itcl::body Rappture::VtkMeshViewer::IsValidObject { dataobj } {
1632	if {[catch {$dataobj isa Rappture::Mesh} valid] != 0 \|\| !$valid} {
1633	return 0
1634	}
1635	return 1
1636	}
1637
1638	itcl::body Rappture::VtkMeshViewer::SetOrientation { side } {
1639	array set positions {
1640	front "1 0 0 0"
1641	back "0 0 1 0"
1642	left "0.707107 0 -0.707107 0"
1643	right "0.707107 0 0.707107 0"
1644	top "0.707107 -0.707107 0 0"
1645	bottom "0.707107 0.707107 0 0"
1646	}
1647	foreach name { -qw -qx -qy -qz } value $positions($side) {
1648	set _view($name) $value
1649	}
1650	set q [ViewToQuaternion]
1651	$_arcball quaternion $q
1652	SendCmd "camera orient $q"
1653	SendCmd "camera reset"
1654	set _view(-xpan) 0
1655	set _view(-ypan) 0
1656	set _view(-zoom) 1.0
1657	}

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