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source: branches/multichoice/gui/scripts/vtkmeshviewer.tcl @ 6371

Last change on this file since 6371 was 6371, checked in by dkearney, 8 years ago
merging changes from trunk into multichoice branch
File size: 51.7 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 Vtkvis server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2016 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *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 { args } {
42	Rappture::VisViewer::constructor
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method parameters {title args} {
60	# do nothing
61	}
62	public method scale {args}
63
64	# The following methods are only used by this class.
65	private method AdjustSetting {what {value ""}}
66	private method BuildAxisTab {}
67	private method BuildCameraTab {}
68	private method BuildDownloadPopup { widget command }
69	private method BuildPolydataTab {}
70	private method Connect {}
71	private method CurrentDatasets {args}
72	private method Disconnect {}
73	private method DoResize {}
74	private method DoRotate {}
75	private method EventuallyResize { w h }
76	private method EventuallyRotate { q }
77	private method EventuallySetPolydataOpacity {}
78	private method GetImage { args }
79	private method GetVtkData { args }
80	private method InitSettings { args }
81	private method IsValidObject { dataobj }
82	private method Pan {option x y}
83	private method PanCamera {}
84	private method Pick {x y}
85	private method QuaternionToView { q } {
86	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
87	}
88	private method Rebuild {}
89	private method ReceiveDataset { args }
90	private method ReceiveImage { args }
91	private method Rotate {option x y}
92	private method SetObjectStyle { dataobj }
93	private method SetOrientation { side }
94	private method SetPolydataOpacity {}
95	private method ViewToQuaternion {} {
96	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
97	}
98	private method Zoom {option}
99
100	private variable _arcball ""
101	private variable _dlist ""; # list of data objects
102	private variable _obj2ovride; # maps dataobj => style override
103	private variable _datasets; # contains all the dataobj-component
104	# datasets in the server
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 _reset 1; # Connection to server has been reset.
111
112	private variable _first ""; # This is the topmost dataset.
113	private variable _start 0
114	private variable _title ""
115	private variable _width 0
116	private variable _height 0
117	private variable _resizePending 0
118	private variable _rotatePending 0
119	private variable _polydataOpacityPending 0
120	private variable _rotateDelay 150
121	private variable _opacityDelay 150
122
123	private common _downloadPopup; # download options from popup
124	private common _hardcopy
125	}
126
127	itk::usual VtkMeshViewer {
128	keep -background -foreground -cursor -font
129	keep -plotbackground -plotforeground
130	}
131
132	# ----------------------------------------------------------------------
133	# CONSTRUCTOR
134	# ----------------------------------------------------------------------
135	itcl::body Rappture::VtkMeshViewer::constructor {args} {
136	set _serverType "vtkvis"
137
138	#DebugOn
139	EnableWaitDialog 900
140
141	# Rebuild event
142	$_dispatcher register !rebuild
143	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
144
145	# Resize event
146	$_dispatcher register !resize
147	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
148
149	# Rotate event
150	$_dispatcher register !rotate
151	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
152
153	# Polydata opacity event
154	$_dispatcher register !polydataOpacity
155	$_dispatcher dispatch $this !polydataOpacity \
156	"[itcl::code $this SetPolydataOpacity]; list"
157	#
158	# Populate parser with commands handle incoming requests
159	#
160	$_parser alias image [itcl::code $this ReceiveImage]
161	$_parser alias dataset [itcl::code $this ReceiveDataset]
162
163	# Initialize the view to some default parameters.
164	array set _view {
165	-ortho 0
166	-qw 0.853553
167	-qx -0.353553
168	-qy 0.353553
169	-qz 0.146447
170	-xpan 0
171	-ypan 0
172	-zoom 1.0
173	}
174	set _arcball [blt::arcball create 100 100]
175	$_arcball quaternion [ViewToQuaternion]
176
177	array set _settings {
178	-axesvisible 1
179	-axislabels 1
180	-axisminorticks 1
181	-outline 0
182	-polydataedges 0
183	-polydatalighting 1
184	-polydataopacity 1.0
185	-polydatavisible 1
186	-polydatawireframe 0
187	-xgrid 0
188	-ygrid 0
189	-zgrid 0
190	}
191	array set _widget {
192	-polydataopacity 100
193	}
194	itk_component add view {
195	canvas $itk_component(plotarea).view \
196	-highlightthickness 0 -borderwidth 0
197	} {
198	usual
199	ignore -highlightthickness -borderwidth -background
200	}
201
202	itk_component add fieldmenu {
203	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
204	-tearoff 0
205	} {
206	usual
207	ignore -background -foreground -relief -tearoff
208	}
209
210	set c $itk_component(view)
211	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
212	bind $c <Control-F1> [itcl::code $this ToggleConsole]
213
214	# Fix the scrollregion in case we go off screen
215	$c configure -scrollregion [$c bbox all]
216
217	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
218	set _map(cwidth) -1
219	set _map(cheight) -1
220	set _map(zoom) 1.0
221	set _map(original) ""
222
223	set f [$itk_component(main) component controls]
224	itk_component add reset {
225	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
226	-highlightthickness 0 \
227	-image [Rappture::icon reset-view] \
228	-command [itcl::code $this Zoom reset]
229	} {
230	usual
231	ignore -highlightthickness
232	}
233	pack $itk_component(reset) -side top -padx 2 -pady 2
234	Rappture::Tooltip::for $itk_component(reset) \
235	"Reset the view to the default zoom level"
236
237	itk_component add zoomin {
238	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
239	-highlightthickness 0 \
240	-image [Rappture::icon zoom-in] \
241	-command [itcl::code $this Zoom in]
242	} {
243	usual
244	ignore -highlightthickness
245	}
246	pack $itk_component(zoomin) -side top -padx 2 -pady 2
247	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
248
249	itk_component add zoomout {
250	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
251	-highlightthickness 0 \
252	-image [Rappture::icon zoom-out] \
253	-command [itcl::code $this Zoom out]
254	} {
255	usual
256	ignore -highlightthickness
257	}
258	pack $itk_component(zoomout) -side top -padx 2 -pady 2
259	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
260
261	BuildPolydataTab
262	BuildAxisTab
263	BuildCameraTab
264
265	# Hack around the Tk panewindow. The problem is that the requested
266	# size of the 3d view isn't set until an image is retrieved from
267	# the server. So the panewindow uses the tiny size.
268	set w 10000
269	pack forget $itk_component(view)
270	blt::table $itk_component(plotarea) \
271	0,0 $itk_component(view) -fill both -reqwidth $w
272	blt::table configure $itk_component(plotarea) c1 -resize none
273
274	# Bindings for rotation via mouse
275	bind $itk_component(view) <ButtonPress-1> \
276	[itcl::code $this Rotate click %x %y]
277	bind $itk_component(view) <B1-Motion> \
278	[itcl::code $this Rotate drag %x %y]
279	bind $itk_component(view) <ButtonRelease-1> \
280	[itcl::code $this Rotate release %x %y]
281
282	# Bindings for panning via mouse
283	bind $itk_component(view) <ButtonPress-2> \
284	[itcl::code $this Pan click %x %y]
285	bind $itk_component(view) <B2-Motion> \
286	[itcl::code $this Pan drag %x %y]
287	bind $itk_component(view) <ButtonRelease-2> \
288	[itcl::code $this Pan release %x %y]
289
290	#bind $itk_component(view) <ButtonRelease-3> \
291	# [itcl::code $this Pick %x %y]
292
293	# Bindings for panning via keyboard
294	bind $itk_component(view) <KeyPress-Left> \
295	[itcl::code $this Pan set -10 0]
296	bind $itk_component(view) <KeyPress-Right> \
297	[itcl::code $this Pan set 10 0]
298	bind $itk_component(view) <KeyPress-Up> \
299	[itcl::code $this Pan set 0 -10]
300	bind $itk_component(view) <KeyPress-Down> \
301	[itcl::code $this Pan set 0 10]
302	bind $itk_component(view) <Shift-KeyPress-Left> \
303	[itcl::code $this Pan set -2 0]
304	bind $itk_component(view) <Shift-KeyPress-Right> \
305	[itcl::code $this Pan set 2 0]
306	bind $itk_component(view) <Shift-KeyPress-Up> \
307	[itcl::code $this Pan set 0 -2]
308	bind $itk_component(view) <Shift-KeyPress-Down> \
309	[itcl::code $this Pan set 0 2]
310
311	# Bindings for zoom via keyboard
312	bind $itk_component(view) <KeyPress-Prior> \
313	[itcl::code $this Zoom out]
314	bind $itk_component(view) <KeyPress-Next> \
315	[itcl::code $this Zoom in]
316
317	bind $itk_component(view) <Enter> "focus $itk_component(view)"
318
319	if {[string equal "x11" [tk windowingsystem]]} {
320	# Bindings for zoom via mouse
321	bind $itk_component(view) <4> [itcl::code $this Zoom out]
322	bind $itk_component(view) <5> [itcl::code $this Zoom in]
323	}
324
325	set _image(download) [image create photo]
326
327	eval itk_initialize $args
328
329	Connect
330	}
331
332	# ----------------------------------------------------------------------
333	# DESTRUCTOR
334	# ----------------------------------------------------------------------
335	itcl::body Rappture::VtkMeshViewer::destructor {} {
336	Disconnect
337	$_dispatcher cancel !rebuild
338	$_dispatcher cancel !resize
339	$_dispatcher cancel !rotate
340	image delete $_image(plot)
341	image delete $_image(download)
342	catch { blt::arcball destroy $_arcball }
343	}
344
345	itcl::body Rappture::VtkMeshViewer::DoResize {} {
346	if { $_width < 2 } {
347	set _width 500
348	}
349	if { $_height < 2 } {
350	set _height 500
351	}
352	set _start [clock clicks -milliseconds]
353	SendCmd "screen size $_width $_height"
354
355	set _resizePending 0
356	}
357
358	itcl::body Rappture::VtkMeshViewer::DoRotate {} {
359	SendCmd "camera orient [ViewToQuaternion]"
360	set _rotatePending 0
361	}
362
363	itcl::body Rappture::VtkMeshViewer::EventuallyResize { w h } {
364	set _width $w
365	set _height $h
366	$_arcball resize $w $h
367	if { !$_resizePending } {
368	set _resizePending 1
369	$_dispatcher event -after 200 !resize
370	}
371	}
372
373	itcl::body Rappture::VtkMeshViewer::EventuallyRotate { q } {
374	QuaternionToView $q
375	if { !$_rotatePending } {
376	set _rotatePending 1
377	$_dispatcher event -after $_rotateDelay !rotate
378	}
379	}
380
381	itcl::body Rappture::VtkMeshViewer::SetPolydataOpacity {} {
382	set _polydataOpacityPending 0
383	set val $_settings(-polydataopacity)
384	SendCmd "polydata opacity $val"
385	}
386
387	itcl::body Rappture::VtkMeshViewer::EventuallySetPolydataOpacity {} {
388	if { !$_polydataOpacityPending } {
389	set _polydataOpacityPending 1
390	$_dispatcher event -after $_opacityDelay !polydataOpacity
391	}
392	}
393
394	# ----------------------------------------------------------------------
395	# USAGE: add <dataobj> ?<settings>?
396	#
397	# Clients use this to add a data object to the plot. The optional
398	# <settings> are used to configure the plot. Allowed settings are
399	# -color, -brightness, -width, -linestyle, and -raise.
400	# ----------------------------------------------------------------------
401	itcl::body Rappture::VtkMeshViewer::add {dataobj {settings ""}} {
402	array set params {
403	-color auto
404	-width 1
405	-linestyle solid
406	-brightness 0
407	-raise 0
408	-description ""
409	-param ""
410	-type ""
411	}
412	array set params $settings
413
414	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
415	# can't handle -autocolors yet
416	set params(-color) black
417	}
418	set pos [lsearch -exact $_dlist $dataobj]
419	if {$pos < 0} {
420	lappend _dlist $dataobj
421	}
422	set _obj2ovride($dataobj-color) $params(-color)
423	set _obj2ovride($dataobj-width) $params(-width)
424	set _obj2ovride($dataobj-raise) $params(-raise)
425	$_dispatcher event -idle !rebuild
426	}
427
428	# ----------------------------------------------------------------------
429	# USAGE: delete ?<dataobj1> <dataobj2> ...?
430	#
431	# Clients use this to delete a dataobj from the plot. If no dataobjs
432	# are specified, then all dataobjs are deleted. No data objects are
433	# deleted. They are only removed from the display list.
434	# ----------------------------------------------------------------------
435	itcl::body Rappture::VtkMeshViewer::delete {args} {
436	if { [llength $args] == 0} {
437	set args $_dlist
438	}
439	# Delete all specified dataobjs
440	set changed 0
441	foreach dataobj $args {
442	set pos [lsearch -exact $_dlist $dataobj]
443	if { $pos < 0 } {
444	continue; # Don't know anything about it.
445	}
446	# Remove it from the dataobj list.
447	set _dlist [lreplace $_dlist $pos $pos]
448	array unset _obj2ovride $dataobj-*
449	set changed 1
450	}
451	# If anything changed, then rebuild the plot
452	if { $changed } {
453	$_dispatcher event -idle !rebuild
454	}
455	}
456
457	# ----------------------------------------------------------------------
458	# USAGE: get ?-objects?
459	# USAGE: get ?-visible?
460	# USAGE: get ?-image view?
461	#
462	# Clients use this to query the list of objects being plotted, in
463	# order from bottom to top of this result. The optional "-image"
464	# flag can also request the internal images being shown.
465	# ----------------------------------------------------------------------
466	itcl::body Rappture::VtkMeshViewer::get {args} {
467	if {[llength $args] == 0} {
468	set args "-objects"
469	}
470
471	set op [lindex $args 0]
472	switch -- $op {
473	"-objects" {
474	# put the dataobj list in order according to -raise options
475	set dlist {}
476	foreach dataobj $_dlist {
477	if { ![IsValidObject $dataobj] } {
478	continue
479	}
480	if {[info exists _obj2ovride($dataobj-raise)] &&
481	$_obj2ovride($dataobj-raise)} {
482	set dlist [linsert $dlist 0 $dataobj]
483	} else {
484	lappend dlist $dataobj
485	}
486	}
487	return $dlist
488	}
489	"-visible" {
490	set dlist {}
491	foreach dataobj $_dlist {
492	if { ![IsValidObject $dataobj] } {
493	continue
494	}
495	if { ![info exists _obj2ovride($dataobj-raise)] } {
496	# No setting indicates that the object isn't visible.
497	continue
498	}
499	# Otherwise use the -raise parameter to put the object to
500	# the front of the list.
501	if { $_obj2ovride($dataobj-raise) } {
502	set dlist [linsert $dlist 0 $dataobj]
503	} else {
504	lappend dlist $dataobj
505	}
506	}
507	return $dlist
508	}
509	"-image" {
510	if {[llength $args] != 2} {
511	error "wrong # args: should be \"get -image view\""
512	}
513	switch -- [lindex $args end] {
514	view {
515	return $_image(plot)
516	}
517	default {
518	error "bad image name \"[lindex $args end]\": should be view"
519	}
520	}
521	}
522	default {
523	error "bad option \"$op\": should be -objects, -visible or -image"
524	}
525	}
526	}
527
528	# ----------------------------------------------------------------------
529	# USAGE: scale ?<data1> <data2> ...?
530	#
531	# Sets the default limits for the overall plot according to the
532	# limits of the data for all of the given <data> objects. This
533	# accounts for all objects--even those not showing on the screen.
534	# Because of this, the limits are appropriate for all objects as
535	# the user scans through data in the ResultSet viewer.
536	# ----------------------------------------------------------------------
537	itcl::body Rappture::VtkMeshViewer::scale {args} {
538	foreach dataobj $args {
539	if { ![$dataobj isvalid] } {
540	continue; # Object doesn't contain valid data.
541	}
542	foreach axis { x y z } {
543	set lim [$dataobj limits $axis]
544	if { ![info exists _limits($axis)] } {
545	set _limits($axis) $lim
546	continue
547	}
548	foreach {min max} $lim break
549	foreach {amin amax} $_limits($axis) break
550	if { $amin > $min } {
551	set amin $min
552	}
553	if { $amax < $max } {
554	set amax $max
555	}
556	set _limits($axis) [list $amin $amax]
557	}
558	}
559	}
560
561	# ----------------------------------------------------------------------
562	# USAGE: download coming
563	# USAGE: download controls <downloadCommand>
564	# USAGE: download now
565	#
566	# Clients use this method to create a downloadable representation
567	# of the plot. Returns a list of the form {ext string}, where
568	# "ext" is the file extension (indicating the type of data) and
569	# "string" is the data itself.
570	# ----------------------------------------------------------------------
571	itcl::body Rappture::VtkMeshViewer::download {option args} {
572	switch $option {
573	coming {
574	if {[catch {
575	blt::winop snap $itk_component(plotarea) $_image(download)
576	}]} {
577	$_image(download) configure -width 1 -height 1
578	$_image(download) put #000000
579	}
580	}
581	controls {
582	set popup .vtkviewerdownload
583	if { ![winfo exists .vtkviewerdownload] } {
584	set inner [BuildDownloadPopup $popup [lindex $args 0]]
585	} else {
586	set inner [$popup component inner]
587	}
588	set _downloadPopup(image_controls) $inner.image_frame
589	set num [llength [get]]
590	set num [expr {($num == 1) ? "1 result" : "$num results"}]
591	set word [Rappture::filexfer::label downloadWord]
592	$inner.summary configure -text "$word $num in the following format:"
593	update idletasks ;# Fix initial sizes
594	return $popup
595	}
596	now {
597	set popup .vtkviewerdownload
598	if {[winfo exists .vtkviewerdownload]} {
599	$popup deactivate
600	}
601	switch -- $_downloadPopup(format) {
602	"image" {
603	return [$this GetImage [lindex $args 0]]
604	}
605	"vtk" {
606	return [$this GetVtkData [lindex $args 0]]
607	}
608	}
609	return ""
610	}
611	default {
612	error "bad option \"$option\": should be coming, controls, now"
613	}
614	}
615	}
616
617	# ----------------------------------------------------------------------
618	# USAGE: Connect ?<host:port>,<host:port>...?
619	#
620	# Clients use this method to establish a connection to a new
621	# server, or to reestablish a connection to the previous server.
622	# Any existing connection is automatically closed.
623	# ----------------------------------------------------------------------
624	itcl::body Rappture::VtkMeshViewer::Connect {} {
625	global readyForNextFrame
626	set readyForNextFrame 1
627	set _hosts [GetServerList "vtkvis"]
628	if { "" == $_hosts } {
629	return 0
630	}
631	set _reset 1
632	set result [VisViewer::Connect $_hosts]
633	if { $result } {
634	if { $_reportClientInfo } {
635	# Tell the server the viewer, hub, user and session.
636	# Do this immediately on connect before buffering any commands
637	global env
638
639	set info {}
640	set user "???"
641	if { [info exists env(USER)] } {
642	set user $env(USER)
643	}
644	set session "???"
645	if { [info exists env(SESSION)] } {
646	set session $env(SESSION)
647	}
648	lappend info "version" "$Rappture::version"
649	lappend info "build" "$Rappture::build"
650	lappend info "svnurl" "$Rappture::svnurl"
651	lappend info "installdir" "$Rappture::installdir"
652	lappend info "hub" [exec hostname]
653	lappend info "client" "vtkmeshviewer"
654	lappend info "user" $user
655	lappend info "session" $session
656	SendCmd "clientinfo [list $info]"
657	}
658
659	set w [winfo width $itk_component(view)]
660	set h [winfo height $itk_component(view)]
661	EventuallyResize $w $h
662	}
663	return $result
664	}
665
666	#
667	# isconnected --
668	#
669	# Indicates if we are currently connected to the visualization server.
670	#
671	itcl::body Rappture::VtkMeshViewer::isconnected {} {
672	return [VisViewer::IsConnected]
673	}
674
675	#
676	# disconnect --
677	#
678	itcl::body Rappture::VtkMeshViewer::disconnect {} {
679	Disconnect
680	set _reset 1
681	}
682
683	#
684	# Disconnect --
685	#
686	# Clients use this method to disconnect from the current rendering server.
687	#
688	itcl::body Rappture::VtkMeshViewer::Disconnect {} {
689	VisViewer::Disconnect
690
691	# disconnected -- no more data sitting on server
692	array unset _datasets
693	global readyForNextFrame
694	set readyForNextFrame 1
695	}
696
697	# ----------------------------------------------------------------------
698	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
699	#
700	# Invoked automatically whenever the "image" command comes in from
701	# the rendering server. Indicates that binary image data with the
702	# specified <size> will follow.
703	# ----------------------------------------------------------------------
704	itcl::body Rappture::VtkMeshViewer::ReceiveImage { args } {
705	global readyForNextFrame
706	set readyForNextFrame 1
707	array set info {
708	-token "???"
709	-bytes 0
710	-type image
711	}
712	array set info $args
713	set bytes [ReceiveBytes $info(-bytes)]
714	if { $info(-type) == "image" } {
715	if 0 {
716	set f [open "last.ppm" "w"]
717	fconfigure $f -encoding binary
718	puts -nonewline $f $bytes
719	close $f
720	}
721	$_image(plot) configure -data $bytes
722	set time [clock seconds]
723	set date [clock format $time]
724	if { $_start > 0 } {
725	set finish [clock clicks -milliseconds]
726	set _start 0
727	}
728	} elseif { $info(type) == "print" } {
729	set tag $this-print-$info(-token)
730	set _hardcopy($tag) $bytes
731	}
732	}
733
734	#
735	# ReceiveDataset --
736	#
737	itcl::body Rappture::VtkMeshViewer::ReceiveDataset { args } {
738	if { ![isconnected] } {
739	return
740	}
741	set option [lindex $args 0]
742	switch -- $option {
743	"scalar" {
744	set option [lindex $args 1]
745	switch -- $option {
746	"world" {
747	foreach { x y z value tag } [lrange $args 2 end] break
748	}
749	"pixel" {
750	foreach { x y value tag } [lrange $args 2 end] break
751	}
752	}
753	}
754	"vector" {
755	set option [lindex $args 1]
756	switch -- $option {
757	"world" {
758	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
759	}
760	"pixel" {
761	foreach { x y vx vy vz tag } [lrange $args 2 end] break
762	}
763	}
764	}
765	"names" {
766	foreach { name } [lindex $args 1] {
767	#puts stderr "Dataset: $name"
768	}
769	}
770	default {
771	error "unknown dataset option \"$option\" from server"
772	}
773	}
774	}
775
776	# ----------------------------------------------------------------------
777	# USAGE: Rebuild
778	#
779	# Called automatically whenever something changes that affects the
780	# data in the widget. Clears any existing data and rebuilds the
781	# widget to display new data.
782	# ----------------------------------------------------------------------
783	itcl::body Rappture::VtkMeshViewer::Rebuild {} {
784	set w [winfo width $itk_component(view)]
785	set h [winfo height $itk_component(view)]
786	if { $w < 2 \|\| $h < 2 } {
787	update
788	$_dispatcher event -idle !rebuild
789	return
790	}
791
792	# Turn on buffering of commands to the server. We don't want to
793	# be preempted by a server disconnect/reconnect (which automatically
794	# generates a new call to Rebuild).
795	StartBufferingCommands
796
797	if { $_reset } {
798	set _width $w
799	set _height $h
800	$_arcball resize $w $h
801	DoResize
802	InitSettings -xgrid -ygrid -zgrid -axismode \
803	-axesvisible -axislabels -axisminorticks
804	StopBufferingCommands
805	SendCmd "imgflush"
806	StartBufferingCommands
807	}
808
809	set _first ""
810	SendCmd "dataset visible 0"
811	set count 0
812	foreach dataobj [get -objects] {
813	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
814	set _first $dataobj
815	}
816	set tag $dataobj
817	if { ![info exists _datasets($tag)] } {
818	set bytes [$dataobj vtkdata -full]
819	if { $bytes == "" } {
820	continue
821	}
822	if 0 {
823	set f [open /tmp/vtkmesh.vtk "w"]
824	fconfigure $f -translation binary -encoding binary
825	puts -nonewline $f $bytes
826	close $f
827	}
828	set length [string length $bytes]
829	if { $_reportClientInfo } {
830	set info {}
831	lappend info "tool_id" [$dataobj hints toolid]
832	lappend info "tool_name" [$dataobj hints toolname]
833	lappend info "tool_title" [$dataobj hints tooltitle]
834	lappend info "tool_command" [$dataobj hints toolcommand]
835	lappend info "tool_revision" [$dataobj hints toolrevision]
836	lappend info "dataset_label" [$dataobj hints label]
837	lappend info "dataset_size" $length
838	lappend info "dataset_tag" $tag
839	SendCmd "clientinfo [list $info]"
840	}
841	SendCmd "dataset add $tag data follows $length"
842	SendData $bytes
843	set _datasets($tag) 1
844	SetObjectStyle $dataobj
845	}
846	if { [info exists _obj2ovride($dataobj-raise)] } {
847	SendCmd "dataset visible 1 $tag"
848	EventuallySetPolydataOpacity
849	}
850	}
851	if {"" != $_first} {
852	foreach axis { x y z } {
853	set label [$_first label ${axis}]
854	if { $label != "" } {
855	SendCmd [list axis name $axis $label]
856	}
857	set units [$_first units ${axis}]
858	if { $units != "" } {
859	SendCmd [list axis units $axis $units]
860	}
861	}
862	}
863	InitSettings -outline
864	if { $_reset } {
865	# These are settings that rely on a dataset being loaded.
866	InitSettings -polydataedges -polydatalighting -polydataopacity \
867	-polydatavisible -polydatawireframe
868
869	#SendCmd "axis lformat all %g"
870
871	$_arcball quaternion [ViewToQuaternion]
872	SendCmd "camera reset"
873	if { $_view(-ortho)} {
874	SendCmd "camera mode ortho"
875	} else {
876	SendCmd "camera mode persp"
877	}
878	DoRotate
879	PanCamera
880	Zoom reset
881	}
882
883	set _reset 0
884	global readyForNextFrame
885	set readyForNextFrame 0; # Don't advance to the next frame
886	# until we get an image.
887
888	# Actually write the commands to the server socket. If it fails, we don't
889	# care. We're finished here.
890	blt::busy hold $itk_component(hull)
891	StopBufferingCommands
892	blt::busy release $itk_component(hull)
893	}
894
895	# ----------------------------------------------------------------------
896	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
897	#
898	# Returns a list of server IDs for the current datasets being displayed. This
899	# is normally a single ID, but it might be a list of IDs if the current data
900	# object has multiple components.
901	# ----------------------------------------------------------------------
902	itcl::body Rappture::VtkMeshViewer::CurrentDatasets {args} {
903	set flag [lindex $args 0]
904	switch -- $flag {
905	"-all" {
906	if { [llength $args] > 1 } {
907	error "CurrentDatasets: can't specify dataobj after \"-all\""
908	}
909	set dlist [get -objects]
910	}
911	"-visible" {
912	if { [llength $args] > 1 } {
913	set dlist {}
914	set args [lrange $args 1 end]
915	foreach dataobj $args {
916	if { [info exists _obj2ovride($dataobj-raise)] } {
917	lappend dlist $dataobj
918	}
919	}
920	} else {
921	set dlist [get -visible]
922	}
923	}
924	default {
925	set dlist $args
926	}
927	}
928	set rlist ""
929	foreach tag $dlist {
930	if { [info exists _datasets($tag)] && $_datasets($tag) } {
931	lappend rlist $tag
932	}
933	}
934	return $rlist
935	}
936
937	# ----------------------------------------------------------------------
938	# USAGE: Zoom in
939	# USAGE: Zoom out
940	# USAGE: Zoom reset
941	#
942	# Called automatically when the user clicks on one of the zoom
943	# controls for this widget. Changes the zoom for the current view.
944	# ----------------------------------------------------------------------
945	itcl::body Rappture::VtkMeshViewer::Zoom {option} {
946	switch -- $option {
947	"in" {
948	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
949	SendCmd "camera zoom $_view(-zoom)"
950	}
951	"out" {
952	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
953	SendCmd "camera zoom $_view(-zoom)"
954	}
955	"reset" {
956	array set _view {
957	-qw 0.853553
958	-qx -0.353553
959	-qy 0.353553
960	-qz 0.146447
961	-xpan 0
962	-ypan 0
963	-zoom 1.0
964	}
965	if { $_first != "" } {
966	set location [$_first hints camera]
967	if { $location != "" } {
968	array set _view $location
969	}
970	}
971	$_arcball quaternion [ViewToQuaternion]
972	DoRotate
973	SendCmd "camera reset"
974	}
975	}
976	}
977
978	itcl::body Rappture::VtkMeshViewer::PanCamera {} {
979	set x $_view(-xpan)
980	set y $_view(-ypan)
981	SendCmd "camera pan $x $y"
982	}
983
984	# ----------------------------------------------------------------------
985	# USAGE: Rotate click <x> <y>
986	# USAGE: Rotate drag <x> <y>
987	# USAGE: Rotate release <x> <y>
988	#
989	# Called automatically when the user clicks/drags/releases in the
990	# plot area. Moves the plot according to the user's actions.
991	# ----------------------------------------------------------------------
992	itcl::body Rappture::VtkMeshViewer::Rotate {option x y} {
993	switch -- $option {
994	"click" {
995	$itk_component(view) configure -cursor fleur
996	set _click(x) $x
997	set _click(y) $y
998	}
999	"drag" {
1000	if {[array size _click] == 0} {
1001	Rotate click $x $y
1002	} else {
1003	set w [winfo width $itk_component(view)]
1004	set h [winfo height $itk_component(view)]
1005	if {$w <= 0 \|\| $h <= 0} {
1006	return
1007	}
1008
1009	if {[catch {
1010	# this fails sometimes for no apparent reason
1011	set dx [expr {double($x-$_click(x))/$w}]
1012	set dy [expr {double($y-$_click(y))/$h}]
1013	}]} {
1014	return
1015	}
1016	if { $dx == 0 && $dy == 0 } {
1017	return
1018	}
1019	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1020	EventuallyRotate $q
1021	set _click(x) $x
1022	set _click(y) $y
1023	}
1024	}
1025	"release" {
1026	Rotate drag $x $y
1027	$itk_component(view) configure -cursor ""
1028	catch {unset _click}
1029	}
1030	default {
1031	error "bad option \"$option\": should be click, drag, release"
1032	}
1033	}
1034	}
1035
1036	itcl::body Rappture::VtkMeshViewer::Pick {x y} {
1037	foreach tag [CurrentDatasets -visible] {
1038	SendCmd "dataset getscalar pixel $x $y $tag"
1039	}
1040	}
1041
1042	# ----------------------------------------------------------------------
1043	# USAGE: $this Pan click x y
1044	# $this Pan drag x y
1045	# $this Pan release x y
1046	#
1047	# Called automatically when the user clicks on one of the zoom
1048	# controls for this widget. Changes the zoom for the current view.
1049	# ----------------------------------------------------------------------
1050	itcl::body Rappture::VtkMeshViewer::Pan {option x y} {
1051	switch -- $option {
1052	"set" {
1053	set w [winfo width $itk_component(view)]
1054	set h [winfo height $itk_component(view)]
1055	set x [expr $x / double($w)]
1056	set y [expr $y / double($h)]
1057	set _view(-xpan) [expr $_view(-xpan) + $x]
1058	set _view(-ypan) [expr $_view(-ypan) + $y]
1059	PanCamera
1060	return
1061	}
1062	"click" {
1063	set _click(x) $x
1064	set _click(y) $y
1065	$itk_component(view) configure -cursor hand1
1066	}
1067	"drag" {
1068	if { ![info exists _click(x)] } {
1069	set _click(x) $x
1070	}
1071	if { ![info exists _click(y)] } {
1072	set _click(y) $y
1073	}
1074	set w [winfo width $itk_component(view)]
1075	set h [winfo height $itk_component(view)]
1076	set dx [expr ($_click(x) - $x)/double($w)]
1077	set dy [expr ($_click(y) - $y)/double($h)]
1078	set _click(x) $x
1079	set _click(y) $y
1080	set _view(-xpan) [expr $_view(-xpan) - $dx]
1081	set _view(-ypan) [expr $_view(-ypan) - $dy]
1082	PanCamera
1083	}
1084	"release" {
1085	Pan drag $x $y
1086	$itk_component(view) configure -cursor ""
1087	}
1088	default {
1089	error "unknown option \"$option\": should set, click, drag, or release"
1090	}
1091	}
1092	}
1093
1094	# ----------------------------------------------------------------------
1095	# USAGE: InitSettings <what> ?<value>?
1096	#
1097	# Used internally to update rendering settings whenever parameters
1098	# change in the popup settings panel. Sends the new settings off
1099	# to the back end.
1100	# ----------------------------------------------------------------------
1101	itcl::body Rappture::VtkMeshViewer::InitSettings { args } {
1102	foreach setting $args {
1103	AdjustSetting $setting
1104	}
1105	}
1106
1107	#
1108	# AdjustSetting --
1109	#
1110	# Changes/updates a specific setting in the widget. There are
1111	# usually user-setable option. Commands are sent to the render
1112	# server.
1113	#
1114	itcl::body Rappture::VtkMeshViewer::AdjustSetting {what {value ""}} {
1115	if { ![isconnected] } {
1116	return
1117	}
1118	switch -- $what {
1119	"-outline" {
1120	set bool $_settings($what)
1121	# Only display a outline for the currently visible sets.
1122	SendCmd "outline visible 0"
1123	foreach dataset [CurrentDatasets -visible] {
1124	SendCmd "outline visible $bool $dataset"
1125	}
1126	}
1127	"-polydataopacity" {
1128	set _settings($what) [expr $_widget($what) * 0.01]
1129	EventuallySetPolydataOpacity
1130	}
1131	"-polydatawireframe" {
1132	set bool $_settings($what)
1133	SendCmd "polydata wireframe $bool"
1134	}
1135	"-polydatavisible" {
1136	set bool $_settings($what)
1137	# Only change visibility of data sets marked "visible".
1138	foreach dataset [CurrentDatasets -visible] {
1139	SendCmd "polydata visible $bool $dataset"
1140	}
1141	}
1142	"-polydatalighting" {
1143	set bool $_settings($what)
1144	SendCmd "polydata lighting $bool"
1145	}
1146	"-polydataedges" {
1147	set bool $_settings($what)
1148	SendCmd "polydata edges $bool"
1149	}
1150	"-axesvisible" {
1151	set bool $_settings($what)
1152	SendCmd "axis visible all $bool"
1153	}
1154	"-axislabels" {
1155	set bool $_settings($what)
1156	SendCmd "axis labels all $bool"
1157	}
1158	"-axisminorticks" {
1159	set bool $_settings($what)
1160	SendCmd "axis minticks all $bool"
1161	}
1162	"-xgrid" {
1163	set bool $_settings($what)
1164	SendCmd "axis grid x $bool"
1165	}
1166	"-ygrid" {
1167	set bool $_settings($what)
1168	SendCmd "axis grid y $bool"
1169	}
1170	"-zgrid" {
1171	set bool $_settings($what)
1172	SendCmd "axis grid z $bool"
1173	}
1174	"-axismode" {
1175	set mode [$itk_component(axismode) value]
1176	set mode [$itk_component(axismode) translate $mode]
1177	SendCmd "axis flymode $mode"
1178	}
1179	default {
1180	error "don't know how to fix $what"
1181	}
1182	}
1183	}
1184
1185	# ----------------------------------------------------------------------
1186	# CONFIGURATION OPTION: -plotbackground
1187	# ----------------------------------------------------------------------
1188	itcl::configbody Rappture::VtkMeshViewer::plotbackground {
1189	if { [isconnected] } {
1190	set rgb [Color2RGB $itk_option(-plotbackground)]
1191	SendCmd "screen bgcolor $rgb"
1192	}
1193	}
1194
1195	# ----------------------------------------------------------------------
1196	# CONFIGURATION OPTION: -plotforeground
1197	# ----------------------------------------------------------------------
1198	itcl::configbody Rappture::VtkMeshViewer::plotforeground {
1199	if { [isconnected] } {
1200	set rgb [Color2RGB $itk_option(-plotforeground)]
1201	SendCmd "axis color all $rgb"
1202	SendCmd "outline color $rgb"
1203	}
1204	}
1205
1206	itcl::body Rappture::VtkMeshViewer::BuildPolydataTab {} {
1207
1208	set fg [option get $itk_component(hull) font Font]
1209	#set bfg [option get $itk_component(hull) boldFont Font]
1210
1211	set inner [$itk_component(main) insert end \
1212	-title "Mesh Settings" \
1213	-icon [Rappture::icon mesh]]
1214	$inner configure -borderwidth 4
1215
1216	checkbutton $inner.mesh \
1217	-text "Show Mesh" \
1218	-variable [itcl::scope _settings(-polydatavisible)] \
1219	-command [itcl::code $this AdjustSetting -polydatavisible] \
1220	-font "Arial 9" -anchor w
1221
1222	checkbutton $inner.outline \
1223	-text "Show Outline" \
1224	-variable [itcl::scope _settings(-outline)] \
1225	-command [itcl::code $this AdjustSetting -outline] \
1226	-font "Arial 9" -anchor w
1227
1228	checkbutton $inner.wireframe \
1229	-text "Show Wireframe" \
1230	-variable [itcl::scope _settings(-polydatawireframe)] \
1231	-command [itcl::code $this AdjustSetting -polydatawireframe] \
1232	-font "Arial 9" -anchor w
1233
1234	checkbutton $inner.lighting \
1235	-text "Enable Lighting" \
1236	-variable [itcl::scope _settings(-polydatalighting)] \
1237	-command [itcl::code $this AdjustSetting -polydatalighting] \
1238	-font "Arial 9" -anchor w
1239
1240	checkbutton $inner.edges \
1241	-text "Show Edges" \
1242	-variable [itcl::scope _settings(-polydataedges)] \
1243	-command [itcl::code $this AdjustSetting -polydataedges] \
1244	-font "Arial 9" -anchor w
1245
1246	itk_component add field_l {
1247	label $inner.field_l -text "Field" -font "Arial 9"
1248	} {
1249	ignore -font
1250	}
1251	itk_component add field {
1252	Rappture::Combobox $inner.field -width 10 -editable 0
1253	}
1254	bind $inner.field <<Value>> \
1255	[itcl::code $this AdjustSetting -field]
1256
1257	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1258	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1259	-variable [itcl::scope _widget(-polydataopacity)] \
1260	-width 10 \
1261	-showvalue off \
1262	-command [itcl::code $this AdjustSetting -polydataopacity]
1263	$inner.opacity set [expr $_settings(-polydataopacity) * 100.0]
1264
1265	blt::table $inner \
1266	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1267	1,0 $inner.outline -cspan 2 -anchor w -pady 2 \
1268	2,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1269	3,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1270	4,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1271	5,0 $inner.opacity_l -anchor w -pady 2 \
1272	5,1 $inner.opacity -fill x -pady 2
1273
1274	blt::table configure $inner r* c* -resize none
1275	blt::table configure $inner r7 c1 -resize expand
1276	}
1277
1278	itcl::body Rappture::VtkMeshViewer::BuildAxisTab {} {
1279
1280	set fg [option get $itk_component(hull) font Font]
1281	#set bfg [option get $itk_component(hull) boldFont Font]
1282
1283	set inner [$itk_component(main) insert end \
1284	-title "Axis Settings" \
1285	-icon [Rappture::icon axis2]]
1286	$inner configure -borderwidth 4
1287
1288	checkbutton $inner.visible \
1289	-text "Axes" \
1290	-variable [itcl::scope _settings(-axesvisible)] \
1291	-command [itcl::code $this AdjustSetting -axesvisible] \
1292	-font "Arial 9"
1293
1294	checkbutton $inner.labels \
1295	-text "Axis Labels" \
1296	-variable [itcl::scope _settings(-axislabels)] \
1297	-command [itcl::code $this AdjustSetting -axislabels] \
1298	-font "Arial 9"
1299	label $inner.grid_l -text "Grid" -font "Arial 9"
1300	checkbutton $inner.xgrid \
1301	-text "X" \
1302	-variable [itcl::scope _settings(-xgrid)] \
1303	-command [itcl::code $this AdjustSetting -xgrid] \
1304	-font "Arial 9"
1305	checkbutton $inner.ygrid \
1306	-text "Y" \
1307	-variable [itcl::scope _settings(-ygrid)] \
1308	-command [itcl::code $this AdjustSetting -ygrid] \
1309	-font "Arial 9"
1310	checkbutton $inner.zgrid \
1311	-text "Z" \
1312	-variable [itcl::scope _settings(-zgrid)] \
1313	-command [itcl::code $this AdjustSetting -zgrid] \
1314	-font "Arial 9"
1315	checkbutton $inner.minorticks \
1316	-text "Minor Ticks" \
1317	-variable [itcl::scope _settings(-axisminorticks)] \
1318	-command [itcl::code $this AdjustSetting -axisminorticks] \
1319	-font "Arial 9"
1320
1321	label $inner.mode_l -text "Mode" -font "Arial 9"
1322
1323	itk_component add axismode {
1324	Rappture::Combobox $inner.mode -width 10 -editable 0
1325	}
1326	$inner.mode choices insert end \
1327	"static_triad" "static" \
1328	"closest_triad" "closest" \
1329	"furthest_triad" "farthest" \
1330	"outer_edges" "outer"
1331	$itk_component(axismode) value "static"
1332	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1333
1334	blt::table $inner \
1335	0,0 $inner.visible -anchor w -cspan 4 \
1336	1,0 $inner.labels -anchor w -cspan 4 \
1337	2,0 $inner.minorticks -anchor w -cspan 4 \
1338	4,0 $inner.grid_l -anchor w \
1339	4,1 $inner.xgrid -anchor w \
1340	4,2 $inner.ygrid -anchor w \
1341	4,3 $inner.zgrid -anchor w \
1342	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1343	5,1 $inner.mode -fill x -cspan 3
1344
1345	blt::table configure $inner r* c* -resize none
1346	blt::table configure $inner r7 c6 -resize expand
1347	blt::table configure $inner r3 -height 0.125i
1348	}
1349
1350	itcl::body Rappture::VtkMeshViewer::BuildCameraTab {} {
1351	set inner [$itk_component(main) insert end \
1352	-title "Camera Settings" \
1353	-icon [Rappture::icon camera]]
1354	$inner configure -borderwidth 4
1355
1356	label $inner.view_l -text "view" -font "Arial 9"
1357	set f [frame $inner.view]
1358	foreach side { front back left right top bottom } {
1359	button $f.$side -image [Rappture::icon view$side] \
1360	-command [itcl::code $this SetOrientation $side]
1361	Rappture::Tooltip::for $f.$side "Change the view to $side"
1362	pack $f.$side -side left
1363	}
1364
1365	blt::table $inner \
1366	0,0 $inner.view_l -anchor e -pady 2 \
1367	0,1 $inner.view -anchor w -pady 2
1368	blt::table configure $inner r0 -resize none
1369
1370	set labels { qx qy qz qw xpan ypan zoom }
1371	set row 1
1372	foreach tag $labels {
1373	label $inner.${tag}label -text $tag -font "Arial 9"
1374	entry $inner.${tag} -font "Arial 9" -bg white \
1375	-textvariable [itcl::scope _view(-$tag)]
1376	bind $inner.${tag} <Return> \
1377	[itcl::code $this camera set -${tag}]
1378	bind $inner.${tag} <KP_Enter> \
1379	[itcl::code $this camera set -${tag}]
1380	blt::table $inner \
1381	$row,0 $inner.${tag}label -anchor e -pady 2 \
1382	$row,1 $inner.${tag} -anchor w -pady 2
1383	blt::table configure $inner r$row -resize none
1384	incr row
1385	}
1386	checkbutton $inner.ortho \
1387	-text "Orthographic Projection" \
1388	-variable [itcl::scope _view(-ortho)] \
1389	-command [itcl::code $this camera set -ortho] \
1390	-font "Arial 9"
1391	blt::table $inner \
1392	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1393	blt::table configure $inner r$row -resize none
1394	incr row
1395
1396	blt::table configure $inner c* -resize none
1397	blt::table configure $inner c2 -resize expand
1398	blt::table configure $inner r$row -resize expand
1399	}
1400
1401	#
1402	# camera --
1403	#
1404	itcl::body Rappture::VtkMeshViewer::camera {option args} {
1405	switch -- $option {
1406	"show" {
1407	puts [array get _view]
1408	}
1409	"set" {
1410	set what [lindex $args 0]
1411	set x $_view($what)
1412	set code [catch { string is double $x } result]
1413	if { $code != 0 \|\| !$result } {
1414	return
1415	}
1416	switch -- $what {
1417	"-ortho" {
1418	if {$_view($what)} {
1419	SendCmd "camera mode ortho"
1420	} else {
1421	SendCmd "camera mode persp"
1422	}
1423	}
1424	"-xpan" - "-ypan" {
1425	PanCamera
1426	}
1427	"-qx" - "-qy" - "-qz" - "-qw" {
1428	set q [ViewToQuaternion]
1429	$_arcball quaternion $q
1430	EventuallyRotate $q
1431	}
1432	"-zoom" {
1433	SendCmd "camera zoom $_view($what)"
1434	}
1435	}
1436	}
1437	}
1438	}
1439
1440	itcl::body Rappture::VtkMeshViewer::GetVtkData { args } {
1441	set bytes ""
1442	foreach dataobj [get] {
1443	set contents [$dataobj vtkdata -full]
1444	append bytes "$contents\n"
1445	}
1446	return [list .vtk $bytes]
1447	}
1448
1449	itcl::body Rappture::VtkMeshViewer::GetImage { args } {
1450	if { [image width $_image(download)] > 0 &&
1451	[image height $_image(download)] > 0 } {
1452	set bytes [$_image(download) data -format "jpeg -quality 100"]
1453	set bytes [Rappture::encoding::decode -as b64 $bytes]
1454	return [list .jpg $bytes]
1455	}
1456	return ""
1457	}
1458
1459	itcl::body Rappture::VtkMeshViewer::BuildDownloadPopup { popup command } {
1460	Rappture::Balloon $popup \
1461	-title "[Rappture::filexfer::label downloadWord] as..."
1462	set inner [$popup component inner]
1463	label $inner.summary -text "" -anchor w
1464	radiobutton $inner.vtk_button -text "VTK data file" \
1465	-variable [itcl::scope _downloadPopup(format)] \
1466	-font "Arial 9" \
1467	-value vtk
1468	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
1469	radiobutton $inner.image_button -text "Image File" \
1470	-variable [itcl::scope _downloadPopup(format)] \
1471	-value image
1472	Rappture::Tooltip::for $inner.image_button \
1473	"Save as digital image."
1474
1475	button $inner.ok -text "Save" \
1476	-highlightthickness 0 -pady 2 -padx 3 \
1477	-command $command \
1478	-compound left \
1479	-image [Rappture::icon download]
1480
1481	button $inner.cancel -text "Cancel" \
1482	-highlightthickness 0 -pady 2 -padx 3 \
1483	-command [list $popup deactivate] \
1484	-compound left \
1485	-image [Rappture::icon cancel]
1486
1487	blt::table $inner \
1488	0,0 $inner.summary -cspan 2 \
1489	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
1490	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
1491	4,1 $inner.cancel -width .9i -fill y \
1492	4,0 $inner.ok -padx 2 -width .9i -fill y
1493	blt::table configure $inner r3 -height 4
1494	blt::table configure $inner r4 -pady 4
1495	raise $inner.image_button
1496	$inner.vtk_button invoke
1497	return $inner
1498	}
1499
1500	itcl::body Rappture::VtkMeshViewer::SetObjectStyle { dataobj } {
1501	# Parse style string.
1502	set tag $dataobj
1503	set type [$dataobj type]
1504
1505	array set style {
1506	-cloudstyle mesh
1507	-color white
1508	-edgecolor black
1509	-edges 1
1510	-lighting 1
1511	-linewidth 1.0
1512	-opacity 1.0
1513	-outline 0
1514	-visible 1
1515	-wireframe 0
1516	}
1517	if {$type == "cloud"} {
1518	set style(-cloudstyle) points
1519	set style(-edges) 0
1520	set style(-edgecolor) white
1521	}
1522	array set style [$dataobj hints style]
1523
1524	if {[$dataobj hints color] != ""} {
1525	set style(-color) [$dataobj hints color]
1526	}
1527	SendCmd "outline add $tag"
1528	SendCmd "outline color [Color2RGB $style(-color)] $tag"
1529	SendCmd "outline visible $style(-outline) $tag"
1530	set _settings(-outline) $style(-outline)
1531
1532	SendCmd "polydata add $tag"
1533	SendCmd "polydata visible $style(-visible) $tag"
1534	set _settings(-polydatavisible) $style(-visible)
1535	SendCmd "polydata cloudstyle $style(-cloudstyle) $tag"
1536	SendCmd "polydata edges $style(-edges) $tag"
1537	set _settings(-polydataedges) $style(-edges)
1538	SendCmd "polydata color [Color2RGB $style(-color)] $tag"
1539	SendCmd "polydata lighting $style(-lighting) $tag"
1540	set _settings(-polydatalighting) $style(-lighting)
1541	SendCmd "polydata linecolor [Color2RGB $style(-edgecolor)] $tag"
1542	SendCmd "polydata linewidth $style(-linewidth) $tag"
1543	SendCmd "polydata opacity $style(-opacity) $tag"
1544	set _settings(-polydataopacity) $style(-opacity)
1545	set _widget(-polydataopacity) [expr 100.0 * $style(-opacity)]
1546	SendCmd "polydata wireframe $style(-wireframe) $tag"
1547	set _settings(-polydatawireframe) $style(-wireframe)
1548	set havePolyData 1
1549	}
1550
1551	itcl::body Rappture::VtkMeshViewer::IsValidObject { dataobj } {
1552	if {[catch {$dataobj isa Rappture::Mesh} valid] != 0 \|\| !$valid} {
1553	return 0
1554	}
1555	return 1
1556	}
1557
1558	itcl::body Rappture::VtkMeshViewer::SetOrientation { side } {
1559	array set positions {
1560	front "1 0 0 0"
1561	back "0 0 1 0"
1562	left "0.707107 0 -0.707107 0"
1563	right "0.707107 0 0.707107 0"
1564	top "0.707107 -0.707107 0 0"
1565	bottom "0.707107 0.707107 0 0"
1566	}
1567	foreach name { -qw -qx -qy -qz } value $positions($side) {
1568	set _view($name) $value
1569	}
1570	set q [ViewToQuaternion]
1571	$_arcball quaternion $q
1572	SendCmd "camera orient $q"
1573	SendCmd "camera reset"
1574	set _view(-xpan) 0
1575	set _view(-ypan) 0
1576	set _view(-zoom) 1.0
1577	}

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