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source: branches/1.3/gui/scripts/vtkmeshviewer.tcl @ 5256

Last change on this file since 5256 was 5250, checked in by ldelgass, 9 years ago
merge r5187 from 1.4 branch
File size: 54.2 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkmeshviewer - Vtk mesh viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2014 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *VtkMeshViewer.width 4i widgetDefault
19	option add VtkMeshViewercursor crosshair widgetDefault
20	option add *VtkMeshViewer.height 4i widgetDefault
21	option add *VtkMeshViewer.foreground black widgetDefault
22	option add *VtkMeshViewer.controlBackground gray widgetDefault
23	option add *VtkMeshViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkMeshViewer.plotBackground black widgetDefault
25	option add *VtkMeshViewer.plotForeground white widgetDefault
26	option add *VtkMeshViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkMeshViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkMeshViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkMeshViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { hostlist args } {
42	Rappture::VisViewer::constructor $hostlist
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method limits { dataobj }
60	public method parameters {title args} {
61	# do nothing
62	}
63	public method scale {args}
64
65	# 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 _obj2ovride; # maps dataobj => style override
104	private variable _datasets; # contains all the dataobj-component
105	# datasets in the server
106	private variable _click; # info used for rotate operations
107	private variable _limits; # autoscale min/max for all axes
108	private variable _view; # view params for 3D view
109	private variable _settings
110	private variable _widget
111	private variable _reset 1; # Connection to server has been reset.
112
113	private variable _first ""; # This is the topmost dataset.
114	private variable _start 0
115	private variable _title ""
116
117	common _downloadPopup; # download options from popup
118	private common _hardcopy
119	private variable _width 0
120	private variable _height 0
121	private variable _resizePending 0
122	private variable _rotatePending 0
123	private variable _polydataOpacityPending 0
124	private variable _rotateDelay 150
125	private variable _opacityDelay 150
126	}
127
128	itk::usual VtkMeshViewer {
129	keep -background -foreground -cursor -font
130	keep -plotbackground -plotforeground
131	}
132
133	# ----------------------------------------------------------------------
134	# CONSTRUCTOR
135	# ----------------------------------------------------------------------
136	itcl::body Rappture::VtkMeshViewer::constructor {hostlist args} {
137	package require vtk
138	set _serverType "vtkvis"
139
140	# Rebuild event
141	$_dispatcher register !rebuild
142	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
143
144	# Resize event
145	$_dispatcher register !resize
146	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
147
148	# Rotate event
149	$_dispatcher register !rotate
150	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
151
152	# Polydata opacity event
153	$_dispatcher register !polydataOpacity
154	$_dispatcher dispatch $this !polydataOpacity \
155	"[itcl::code $this SetPolydataOpacity]; list"
156	#
157	# Populate parser with commands handle incoming requests
158	#
159	$_parser alias image [itcl::code $this ReceiveImage]
160	$_parser alias dataset [itcl::code $this ReceiveDataset]
161
162	# Initialize the view to some default parameters.
163	array set _view {
164	-ortho 0
165	-qw 0.853553
166	-qx -0.353553
167	-qy 0.353553
168	-qz 0.146447
169	-xpan 0
170	-ypan 0
171	-zoom 1.0
172	}
173	set _arcball [blt::arcball create 100 100]
174	$_arcball quaternion [ViewToQuaternion]
175
176	set _limits(zmin) 0.0
177	set _limits(zmax) 1.0
178
179	array set _settings {
180	-axesvisible 1
181	-axislabels 1
182	-axisminorticks 1
183	-outline 0
184	-polydataedges 0
185	-polydatalighting 1
186	-polydataopacity 1.0
187	-polydatavisible 1
188	-polydatawireframe 0
189	-xgrid 0
190	-ygrid 0
191	-zgrid 0
192	}
193	array set _widget {
194	-polydataopacity 100
195	}
196	itk_component add view {
197	canvas $itk_component(plotarea).view \
198	-highlightthickness 0 -borderwidth 0
199	} {
200	usual
201	ignore -highlightthickness -borderwidth -background
202	}
203
204	itk_component add fieldmenu {
205	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
206	-tearoff no
207	} {
208	usual
209	ignore -background -foreground -relief -tearoff
210	}
211
212	set c $itk_component(view)
213	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
214	bind $c <4> [itcl::code $this Zoom in 0.25]
215	bind $c <5> [itcl::code $this Zoom out 0.25]
216	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
217	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
218	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
219	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
220	bind $c <Enter> "focus %W"
221	bind $c <Control-F1> [itcl::code $this ToggleConsole]
222
223	# Fix the scrollregion in case we go off screen
224	$c configure -scrollregion [$c bbox all]
225
226	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
227	set _map(cwidth) -1
228	set _map(cheight) -1
229	set _map(zoom) 1.0
230	set _map(original) ""
231
232	set f [$itk_component(main) component controls]
233	itk_component add reset {
234	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
235	-highlightthickness 0 \
236	-image [Rappture::icon reset-view] \
237	-command [itcl::code $this Zoom reset]
238	} {
239	usual
240	ignore -highlightthickness
241	}
242	pack $itk_component(reset) -side top -padx 2 -pady 2
243	Rappture::Tooltip::for $itk_component(reset) \
244	"Reset the view to the default zoom level"
245
246	itk_component add zoomin {
247	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
248	-highlightthickness 0 \
249	-image [Rappture::icon zoom-in] \
250	-command [itcl::code $this Zoom in]
251	} {
252	usual
253	ignore -highlightthickness
254	}
255	pack $itk_component(zoomin) -side top -padx 2 -pady 2
256	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
257
258	itk_component add zoomout {
259	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
260	-highlightthickness 0 \
261	-image [Rappture::icon zoom-out] \
262	-command [itcl::code $this Zoom out]
263	} {
264	usual
265	ignore -highlightthickness
266	}
267	pack $itk_component(zoomout) -side top -padx 2 -pady 2
268	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
269
270	BuildPolydataTab
271	BuildAxisTab
272	BuildCameraTab
273
274	# Hack around the Tk panewindow. The problem is that the requested
275	# size of the 3d view isn't set until an image is retrieved from
276	# the server. So the panewindow uses the tiny size.
277	set w 10000
278	pack forget $itk_component(view)
279	blt::table $itk_component(plotarea) \
280	0,0 $itk_component(view) -fill both -reqwidth $w
281	blt::table configure $itk_component(plotarea) c1 -resize none
282
283	# Bindings for rotation via mouse
284	bind $itk_component(view) <ButtonPress-1> \
285	[itcl::code $this Rotate click %x %y]
286	bind $itk_component(view) <B1-Motion> \
287	[itcl::code $this Rotate drag %x %y]
288	bind $itk_component(view) <ButtonRelease-1> \
289	[itcl::code $this Rotate release %x %y]
290
291	# Bindings for panning via mouse
292	bind $itk_component(view) <ButtonPress-2> \
293	[itcl::code $this Pan click %x %y]
294	bind $itk_component(view) <B2-Motion> \
295	[itcl::code $this Pan drag %x %y]
296	bind $itk_component(view) <ButtonRelease-2> \
297	[itcl::code $this Pan release %x %y]
298
299	#bind $itk_component(view) <ButtonRelease-3> \
300	# [itcl::code $this Pick %x %y]
301
302	# Bindings for panning via keyboard
303	bind $itk_component(view) <KeyPress-Left> \
304	[itcl::code $this Pan set -10 0]
305	bind $itk_component(view) <KeyPress-Right> \
306	[itcl::code $this Pan set 10 0]
307	bind $itk_component(view) <KeyPress-Up> \
308	[itcl::code $this Pan set 0 -10]
309	bind $itk_component(view) <KeyPress-Down> \
310	[itcl::code $this Pan set 0 10]
311	bind $itk_component(view) <Shift-KeyPress-Left> \
312	[itcl::code $this Pan set -2 0]
313	bind $itk_component(view) <Shift-KeyPress-Right> \
314	[itcl::code $this Pan set 2 0]
315	bind $itk_component(view) <Shift-KeyPress-Up> \
316	[itcl::code $this Pan set 0 -2]
317	bind $itk_component(view) <Shift-KeyPress-Down> \
318	[itcl::code $this Pan set 0 2]
319
320	# Bindings for zoom via keyboard
321	bind $itk_component(view) <KeyPress-Prior> \
322	[itcl::code $this Zoom out]
323	bind $itk_component(view) <KeyPress-Next> \
324	[itcl::code $this Zoom in]
325
326	bind $itk_component(view) <Enter> "focus $itk_component(view)"
327
328	if {[string equal "x11" [tk windowingsystem]]} {
329	# Bindings for zoom via mouse
330	bind $itk_component(view) <4> [itcl::code $this Zoom out]
331	bind $itk_component(view) <5> [itcl::code $this Zoom in]
332	}
333
334	set _image(download) [image create photo]
335
336	eval itk_initialize $args
337
338	EnableWaitDialog 900
339	Connect
340	}
341
342	# ----------------------------------------------------------------------
343	# DESTRUCTOR
344	# ----------------------------------------------------------------------
345	itcl::body Rappture::VtkMeshViewer::destructor {} {
346	Disconnect
347	$_dispatcher cancel !rebuild
348	$_dispatcher cancel !resize
349	$_dispatcher cancel !rotate
350	image delete $_image(plot)
351	image delete $_image(download)
352	catch { blt::arcball destroy $_arcball }
353	}
354
355	itcl::body Rappture::VtkMeshViewer::DoResize {} {
356	if { $_width < 2 } {
357	set _width 500
358	}
359	if { $_height < 2 } {
360	set _height 500
361	}
362	set _start [clock clicks -milliseconds]
363	SendCmd "screen size $_width $_height"
364
365	set _resizePending 0
366	}
367
368	itcl::body Rappture::VtkMeshViewer::DoRotate {} {
369	SendCmd "camera orient [ViewToQuaternion]"
370	set _rotatePending 0
371	}
372
373	itcl::body Rappture::VtkMeshViewer::EventuallyResize { w h } {
374	set _width $w
375	set _height $h
376	$_arcball resize $w $h
377	if { !$_resizePending } {
378	set _resizePending 1
379	$_dispatcher event -after 200 !resize
380	}
381	}
382
383	itcl::body Rappture::VtkMeshViewer::EventuallyRotate { q } {
384	QuaternionToView $q
385	if { !$_rotatePending } {
386	set _rotatePending 1
387	$_dispatcher event -after $_rotateDelay !rotate
388	}
389	}
390
391	itcl::body Rappture::VtkMeshViewer::SetPolydataOpacity {} {
392	set _polydataOpacityPending 0
393	set val $_settings(-polydataopacity)
394	SendCmd "polydata opacity $val"
395	}
396
397	itcl::body Rappture::VtkMeshViewer::EventuallySetPolydataOpacity {} {
398	if { !$_polydataOpacityPending } {
399	set _polydataOpacityPending 1
400	$_dispatcher event -after $_opacityDelay !polydataOpacity
401	}
402	}
403
404	# ----------------------------------------------------------------------
405	# USAGE: add <dataobj> ?<settings>?
406	#
407	# Clients use this to add a data object to the plot. The optional
408	# <settings> are used to configure the plot. Allowed settings are
409	# -color, -brightness, -width, -linestyle, and -raise.
410	# ----------------------------------------------------------------------
411	itcl::body Rappture::VtkMeshViewer::add {dataobj {settings ""}} {
412	array set params {
413	-color auto
414	-width 1
415	-linestyle solid
416	-brightness 0
417	-raise 0
418	-description ""
419	-param ""
420	-type ""
421	}
422	array set params $settings
423	set params(-description) ""
424	set params(-param) ""
425	array set params $settings
426
427	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
428	# can't handle -autocolors yet
429	set params(-color) black
430	}
431	set pos [lsearch -exact $_dlist $dataobj]
432	if {$pos < 0} {
433	lappend _dlist $dataobj
434	}
435	set _obj2ovride($dataobj-color) $params(-color)
436	set _obj2ovride($dataobj-width) $params(-width)
437	set _obj2ovride($dataobj-raise) $params(-raise)
438	$_dispatcher event -idle !rebuild
439	}
440
441	# ----------------------------------------------------------------------
442	# USAGE: delete ?<dataobj1> <dataobj2> ...?
443	#
444	# Clients use this to delete a dataobj from the plot. If no dataobjs
445	# are specified, then all dataobjs are deleted. No data objects are
446	# deleted. They are only removed from the display list.
447	#
448	# ----------------------------------------------------------------------
449	itcl::body Rappture::VtkMeshViewer::delete {args} {
450	if { [llength $args] == 0} {
451	set args $_dlist
452	}
453	# Delete all specified dataobjs
454	set changed 0
455	foreach dataobj $args {
456	set pos [lsearch -exact $_dlist $dataobj]
457	if { $pos < 0 } {
458	continue; # Don't know anything about it.
459	}
460	# Remove it from the dataobj list.
461	set _dlist [lreplace $_dlist $pos $pos]
462	array unset _obj2ovride $dataobj-*
463	set changed 1
464	}
465	# If anything changed, then rebuild the plot
466	if { $changed } {
467	$_dispatcher event -idle !rebuild
468	}
469	}
470
471	# ----------------------------------------------------------------------
472	# USAGE: get ?-objects?
473	# USAGE: get ?-visible?
474	# USAGE: get ?-image view?
475	#
476	# Clients use this to query the list of objects being plotted, in
477	# order from bottom to top of this result. The optional "-image"
478	# flag can also request the internal images being shown.
479	# ----------------------------------------------------------------------
480	itcl::body Rappture::VtkMeshViewer::get {args} {
481	if {[llength $args] == 0} {
482	set args "-objects"
483	}
484
485	set op [lindex $args 0]
486	switch -- $op {
487	"-objects" {
488	# put the dataobj list in order according to -raise options
489	set dlist {}
490	foreach dataobj $_dlist {
491	if { ![IsValidObject $dataobj] } {
492	continue
493	}
494	if {[info exists _obj2ovride($dataobj-raise)] &&
495	$_obj2ovride($dataobj-raise)} {
496	set dlist [linsert $dlist 0 $dataobj]
497	} else {
498	lappend dlist $dataobj
499	}
500	}
501	return $dlist
502	}
503	"-visible" {
504	set dlist {}
505	foreach dataobj $_dlist {
506	if { ![IsValidObject $dataobj] } {
507	continue
508	}
509	if { ![info exists _obj2ovride($dataobj-raise)] } {
510	# No setting indicates that the object isn't visible.
511	continue
512	}
513	# Otherwise use the -raise parameter to put the object to
514	# the front of the list.
515	if { $_obj2ovride($dataobj-raise) } {
516	set dlist [linsert $dlist 0 $dataobj]
517	} else {
518	lappend dlist $dataobj
519	}
520	}
521	return $dlist
522	}
523	-image {
524	if {[llength $args] != 2} {
525	error "wrong # args: should be \"get -image view\""
526	}
527	switch -- [lindex $args end] {
528	view {
529	return $_image(plot)
530	}
531	default {
532	error "bad image name \"[lindex $args end]\": should be view"
533	}
534	}
535	}
536	default {
537	error "bad option \"$op\": should be -objects or -image"
538	}
539	}
540	}
541
542	# ----------------------------------------------------------------------
543	# USAGE: scale ?<data1> <data2> ...?
544	#
545	# Sets the default limits for the overall plot according to the
546	# limits of the data for all of the given <data> objects. This
547	# accounts for all objects--even those not showing on the screen.
548	# Because of this, the limits are appropriate for all objects as
549	# the user scans through data in the ResultSet viewer.
550	# ----------------------------------------------------------------------
551	itcl::body Rappture::VtkMeshViewer::scale {args} {
552	foreach dataobj $args {
553	array set bounds [limits $dataobj]
554	if {![info exists _limits(xmin)] \|\| $_limits(xmin) > $bounds(xmin)} {
555	set _limits(xmin) $bounds(xmin)
556	}
557	if {![info exists _limits(xmax)] \|\| $_limits(xmax) < $bounds(xmax)} {
558	set _limits(xmax) $bounds(xmax)
559	}
560
561	if {![info exists _limits(ymin)] \|\| $_limits(ymin) > $bounds(ymin)} {
562	set _limits(ymin) $bounds(ymin)
563	}
564	if {![info exists _limits(ymax)] \|\| $_limits(ymax) < $bounds(ymax)} {
565	set _limits(ymax) $bounds(ymax)
566	}
567
568	if {![info exists _limits(zmin)] \|\| $_limits(zmin) > $bounds(zmin)} {
569	set _limits(zmin) $bounds(zmin)
570	}
571	if {![info exists _limits(zmax)] \|\| $_limits(zmax) < $bounds(zmax)} {
572	set _limits(zmax) $bounds(zmax)
573	}
574	}
575	}
576
577	# ----------------------------------------------------------------------
578	# USAGE: download coming
579	# USAGE: download controls <downloadCommand>
580	# USAGE: download now
581	#
582	# Clients use this method to create a downloadable representation
583	# of the plot. Returns a list of the form {ext string}, where
584	# "ext" is the file extension (indicating the type of data) and
585	# "string" is the data itself.
586	# ----------------------------------------------------------------------
587	itcl::body Rappture::VtkMeshViewer::download {option args} {
588	switch $option {
589	coming {
590	if {[catch {
591	blt::winop snap $itk_component(plotarea) $_image(download)
592	}]} {
593	$_image(download) configure -width 1 -height 1
594	$_image(download) put #000000
595	}
596	}
597	controls {
598	set popup .vtkviewerdownload
599	if { ![winfo exists .vtkviewerdownload] } {
600	set inner [BuildDownloadPopup $popup [lindex $args 0]]
601	} else {
602	set inner [$popup component inner]
603	}
604	set _downloadPopup(image_controls) $inner.image_frame
605	set num [llength [get]]
606	set num [expr {($num == 1) ? "1 result" : "$num results"}]
607	set word [Rappture::filexfer::label downloadWord]
608	$inner.summary configure -text "$word $num in the following format:"
609	update idletasks ;# Fix initial sizes
610	return $popup
611	}
612	now {
613	set popup .vtkviewerdownload
614	if {[winfo exists .vtkviewerdownload]} {
615	$popup deactivate
616	}
617	switch -- $_downloadPopup(format) {
618	"image" {
619	return [$this GetImage [lindex $args 0]]
620	}
621	"vtk" {
622	return [$this GetVtkData [lindex $args 0]]
623	}
624	}
625	return ""
626	}
627	default {
628	error "bad option \"$option\": should be coming, controls, now"
629	}
630	}
631	}
632
633	# ----------------------------------------------------------------------
634	# USAGE: Connect ?<host:port>,<host:port>...?
635	#
636	# Clients use this method to establish a connection to a new
637	# server, or to reestablish a connection to the previous server.
638	# Any existing connection is automatically closed.
639	# ----------------------------------------------------------------------
640	itcl::body Rappture::VtkMeshViewer::Connect {} {
641	global readyForNextFrame
642	set readyForNextFrame 1
643	set _hosts [GetServerList "vtkvis"]
644	if { "" == $_hosts } {
645	return 0
646	}
647	set _reset 1
648	set result [VisViewer::Connect $_hosts]
649	if { $result } {
650	if { $_reportClientInfo } {
651	# Tell the server the viewer, hub, user and session.
652	# Do this immediately on connect before buffering any commands
653	global env
654
655	set info {}
656	set user "???"
657	if { [info exists env(USER)] } {
658	set user $env(USER)
659	}
660	set session "???"
661	if { [info exists env(SESSION)] } {
662	set session $env(SESSION)
663	}
664	lappend info "version" "$Rappture::version"
665	lappend info "build" "$Rappture::build"
666	lappend info "svnurl" "$Rappture::svnurl"
667	lappend info "installdir" "$Rappture::installdir"
668	lappend info "hub" [exec hostname]
669	lappend info "client" "vtkmeshviewer"
670	lappend info "user" $user
671	lappend info "session" $session
672	SendCmd "clientinfo [list $info]"
673	}
674
675	set w [winfo width $itk_component(view)]
676	set h [winfo height $itk_component(view)]
677	EventuallyResize $w $h
678	}
679	return $result
680	}
681
682	#
683	# isconnected --
684	#
685	# Indicates if we are currently connected to the visualization server.
686	#
687	itcl::body Rappture::VtkMeshViewer::isconnected {} {
688	return [VisViewer::IsConnected]
689	}
690
691	#
692	# disconnect --
693	#
694	itcl::body Rappture::VtkMeshViewer::disconnect {} {
695	Disconnect
696	set _reset 1
697	}
698
699	#
700	# Disconnect --
701	#
702	# Clients use this method to disconnect from the current rendering
703	# server.
704	#
705	itcl::body Rappture::VtkMeshViewer::Disconnect {} {
706	VisViewer::Disconnect
707
708	# disconnected -- no more data sitting on server
709	array unset _datasets
710	global readyForNextFrame
711	set readyForNextFrame 1
712	}
713
714	# ----------------------------------------------------------------------
715	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
716	#
717	# Invoked automatically whenever the "image" command comes in from
718	# the rendering server. Indicates that binary image data with the
719	# specified <size> will follow.
720	# ----------------------------------------------------------------------
721	itcl::body Rappture::VtkMeshViewer::ReceiveImage { args } {
722	global readyForNextFrame
723	set readyForNextFrame 1
724	array set info {
725	-token "???"
726	-bytes 0
727	-type image
728	}
729	array set info $args
730	set bytes [ReceiveBytes $info(-bytes)]
731	if { $info(-type) == "image" } {
732	if 0 {
733	set f [open "last.ppm" "w"]
734	fconfigure $f -encoding binary
735	puts -nonewline $f $bytes
736	close $f
737	}
738	$_image(plot) configure -data $bytes
739	set time [clock seconds]
740	set date [clock format $time]
741	if { $_start > 0 } {
742	set finish [clock clicks -milliseconds]
743	set _start 0
744	}
745	} elseif { $info(type) == "print" } {
746	set tag $this-print-$info(-token)
747	set _hardcopy($tag) $bytes
748	}
749	}
750
751	#
752	# ReceiveDataset --
753	#
754	itcl::body Rappture::VtkMeshViewer::ReceiveDataset { args } {
755	if { ![isconnected] } {
756	return
757	}
758	set option [lindex $args 0]
759	switch -- $option {
760	"scalar" {
761	set option [lindex $args 1]
762	switch -- $option {
763	"world" {
764	foreach { x y z value tag } [lrange $args 2 end] break
765	}
766	"pixel" {
767	foreach { x y value tag } [lrange $args 2 end] break
768	}
769	}
770	}
771	"vector" {
772	set option [lindex $args 1]
773	switch -- $option {
774	"world" {
775	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
776	}
777	"pixel" {
778	foreach { x y vx vy vz tag } [lrange $args 2 end] break
779	}
780	}
781	}
782	"names" {
783	foreach { name } [lindex $args 1] {
784	#puts stderr "Dataset: $name"
785	}
786	}
787	default {
788	error "unknown dataset option \"$option\" from server"
789	}
790	}
791	}
792
793	# ----------------------------------------------------------------------
794	# USAGE: Rebuild
795	#
796	# Called automatically whenever something changes that affects the
797	# data in the widget. Clears any existing data and rebuilds the
798	# widget to display new data.
799	# ----------------------------------------------------------------------
800	itcl::body Rappture::VtkMeshViewer::Rebuild {} {
801	set w [winfo width $itk_component(view)]
802	set h [winfo height $itk_component(view)]
803	if { $w < 2 \|\| $h < 2 } {
804	update
805	$_dispatcher event -idle !rebuild
806	return
807	}
808
809	# Turn on buffering of commands to the server. We don't want to
810	# be preempted by a server disconnect/reconnect (which automatically
811	# generates a new call to Rebuild).
812	StartBufferingCommands
813
814	if { $_reset } {
815	set _width $w
816	set _height $h
817	$_arcball resize $w $h
818	DoResize
819	InitSettings -xgrid -ygrid -zgrid -axismode \
820	-axesvisible -axislabels -axisminorticks
821	StopBufferingCommands
822	SendCmd "imgflush"
823	StartBufferingCommands
824	}
825
826	set _limits(zmin) ""
827	set _limits(zmax) ""
828	set _first ""
829	SendCmd "dataset visible 0"
830	set count 0
831	foreach dataobj [get -objects] {
832	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
833	set _first $dataobj
834	}
835	set tag $dataobj
836	if { ![info exists _datasets($tag)] } {
837	set bytes [$dataobj vtkdata -full]
838	if { $bytes == "" } {
839	continue
840	}
841	if 0 {
842	set f [open /tmp/vtkmesh.vtk "w"]
843	fconfigure $f -translation binary -encoding binary
844	puts -nonewline $f $bytes
845	close $f
846	}
847	set length [string length $bytes]
848	if { $_reportClientInfo } {
849	set info {}
850	lappend info "tool_id" [$dataobj hints toolid]
851	lappend info "tool_name" [$dataobj hints toolname]
852	lappend info "tool_title" [$dataobj hints tooltitle]
853	lappend info "tool_command" [$dataobj hints toolcommand]
854	lappend info "tool_revision" [$dataobj hints toolrevision]
855	lappend info "dataset_label" [$dataobj hints label]
856	lappend info "dataset_size" $length
857	lappend info "dataset_tag" $tag
858	SendCmd "clientinfo [list $info]"
859	}
860	SendCmd "dataset add $tag data follows $length"
861	SendData $bytes
862	set _datasets($tag) 1
863	SetObjectStyle $dataobj
864	}
865	if { [info exists _obj2ovride($dataobj-raise)] } {
866	SendCmd "dataset visible 1 $tag"
867	EventuallySetPolydataOpacity
868	}
869	}
870	if {"" != $_first} {
871	set location [$_first hints camera]
872	if { $location != "" } {
873	array set view $location
874	}
875
876	foreach axis { x y z } {
877	set label [$_first label ${axis}]
878	if { $label != "" } {
879	SendCmd [list axis name $axis $label]
880	}
881	set units [$_first units ${axis}]
882	if { $units != "" } {
883	SendCmd [list axis units $axis $units]
884	}
885	}
886	}
887	InitSettings -outline
888	if { $_reset } {
889	# These are settings that rely on a dataset being loaded.
890	InitSettings -polydataedges -polydatalighting -polydataopacity \
891	-polydatavisible -polydatawireframe
892
893	#SendCmd "axis lformat all %g"
894
895	$_arcball quaternion [ViewToQuaternion]
896	SendCmd "camera reset"
897	if { $_view(-ortho)} {
898	SendCmd "camera mode ortho"
899	} else {
900	SendCmd "camera mode persp"
901	}
902	DoRotate
903	PanCamera
904	Zoom reset
905	}
906
907	set _reset 0
908	global readyForNextFrame
909	set readyForNextFrame 0; # Don't advance to the next frame
910	# until we get an image.
911
912	# Actually write the commands to the server socket. If it fails, we don't
913	# care. We're finished here.
914	blt::busy hold $itk_component(hull)
915	StopBufferingCommands
916	blt::busy release $itk_component(hull)
917	}
918
919	# ----------------------------------------------------------------------
920	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
921	#
922	# Returns a list of server IDs for the current datasets being displayed. This
923	# is normally a single ID, but it might be a list of IDs if the current data
924	# object has multiple components.
925	# ----------------------------------------------------------------------
926	itcl::body Rappture::VtkMeshViewer::CurrentDatasets {args} {
927	set flag [lindex $args 0]
928	switch -- $flag {
929	"-all" {
930	if { [llength $args] > 1 } {
931	error "CurrentDatasets: can't specify dataobj after \"-all\""
932	}
933	set dlist [get -objects]
934	}
935	"-visible" {
936	if { [llength $args] > 1 } {
937	set dlist {}
938	set args [lrange $args 1 end]
939	foreach dataobj $args {
940	if { [info exists _obj2ovride($dataobj-raise)] } {
941	lappend dlist $dataobj
942	}
943	}
944	} else {
945	set dlist [get -visible]
946	}
947	}
948	default {
949	set dlist $args
950	}
951	}
952	set rlist ""
953	foreach tag $dlist {
954	if { [info exists _datasets($tag)] && $_datasets($tag) } {
955	lappend rlist $tag
956	}
957	}
958	return $rlist
959	}
960
961	# ----------------------------------------------------------------------
962	# USAGE: Zoom in
963	# USAGE: Zoom out
964	# USAGE: Zoom reset
965	#
966	# Called automatically when the user clicks on one of the zoom
967	# controls for this widget. Changes the zoom for the current view.
968	# ----------------------------------------------------------------------
969	itcl::body Rappture::VtkMeshViewer::Zoom {option} {
970	switch -- $option {
971	"in" {
972	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
973	SendCmd "camera zoom $_view(-zoom)"
974	}
975	"out" {
976	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
977	SendCmd "camera zoom $_view(-zoom)"
978	}
979	"reset" {
980	array set _view {
981	-qw 0.853553
982	-qx -0.353553
983	-qy 0.353553
984	-qz 0.146447
985	-xpan 0
986	-ypan 0
987	-zoom 1.0
988	}
989	if { $_first != "" } {
990	set location [$_first hints camera]
991	if { $location != "" } {
992	array set _view $location
993	}
994	}
995	$_arcball quaternion [ViewToQuaternion]
996	DoRotate
997	SendCmd "camera reset"
998	}
999	}
1000	}
1001
1002	itcl::body Rappture::VtkMeshViewer::PanCamera {} {
1003	set x $_view(-xpan)
1004	set y $_view(-ypan)
1005	SendCmd "camera pan $x $y"
1006	}
1007
1008	# ----------------------------------------------------------------------
1009	# USAGE: Rotate click <x> <y>
1010	# USAGE: Rotate drag <x> <y>
1011	# USAGE: Rotate release <x> <y>
1012	#
1013	# Called automatically when the user clicks/drags/releases in the
1014	# plot area. Moves the plot according to the user's actions.
1015	# ----------------------------------------------------------------------
1016	itcl::body Rappture::VtkMeshViewer::Rotate {option x y} {
1017	switch -- $option {
1018	"click" {
1019	$itk_component(view) configure -cursor fleur
1020	set _click(x) $x
1021	set _click(y) $y
1022	}
1023	"drag" {
1024	if {[array size _click] == 0} {
1025	Rotate click $x $y
1026	} else {
1027	set w [winfo width $itk_component(view)]
1028	set h [winfo height $itk_component(view)]
1029	if {$w <= 0 \|\| $h <= 0} {
1030	return
1031	}
1032
1033	if {[catch {
1034	# this fails sometimes for no apparent reason
1035	set dx [expr {double($x-$_click(x))/$w}]
1036	set dy [expr {double($y-$_click(y))/$h}]
1037	}]} {
1038	return
1039	}
1040	if { $dx == 0 && $dy == 0 } {
1041	return
1042	}
1043	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1044	EventuallyRotate $q
1045	set _click(x) $x
1046	set _click(y) $y
1047	}
1048	}
1049	"release" {
1050	Rotate drag $x $y
1051	$itk_component(view) configure -cursor ""
1052	catch {unset _click}
1053	}
1054	default {
1055	error "bad option \"$option\": should be click, drag, release"
1056	}
1057	}
1058	}
1059
1060	itcl::body Rappture::VtkMeshViewer::Pick {x y} {
1061	foreach tag [CurrentDatasets -visible] {
1062	SendCmd "dataset getscalar pixel $x $y $tag"
1063	}
1064	}
1065
1066	# ----------------------------------------------------------------------
1067	# USAGE: $this Pan click x y
1068	# $this Pan drag x y
1069	# $this Pan release x y
1070	#
1071	# Called automatically when the user clicks on one of the zoom
1072	# controls for this widget. Changes the zoom for the current view.
1073	# ----------------------------------------------------------------------
1074	itcl::body Rappture::VtkMeshViewer::Pan {option x y} {
1075	switch -- $option {
1076	"set" {
1077	set w [winfo width $itk_component(view)]
1078	set h [winfo height $itk_component(view)]
1079	set x [expr $x / double($w)]
1080	set y [expr $y / double($h)]
1081	set _view(-xpan) [expr $_view(-xpan) + $x]
1082	set _view(-ypan) [expr $_view(-ypan) + $y]
1083	PanCamera
1084	return
1085	}
1086	"click" {
1087	set _click(x) $x
1088	set _click(y) $y
1089	$itk_component(view) configure -cursor hand1
1090	}
1091	"drag" {
1092	if { ![info exists _click(x)] } {
1093	set _click(x) $x
1094	}
1095	if { ![info exists _click(y)] } {
1096	set _click(y) $y
1097	}
1098	set w [winfo width $itk_component(view)]
1099	set h [winfo height $itk_component(view)]
1100	set dx [expr ($_click(x) - $x)/double($w)]
1101	set dy [expr ($_click(y) - $y)/double($h)]
1102	set _click(x) $x
1103	set _click(y) $y
1104	set _view(-xpan) [expr $_view(-xpan) - $dx]
1105	set _view(-ypan) [expr $_view(-ypan) - $dy]
1106	PanCamera
1107	}
1108	"release" {
1109	Pan drag $x $y
1110	$itk_component(view) configure -cursor ""
1111	}
1112	default {
1113	error "unknown option \"$option\": should set, click, drag, or release"
1114	}
1115	}
1116	}
1117
1118	# ----------------------------------------------------------------------
1119	# USAGE: InitSettings <what> ?<value>?
1120	#
1121	# Used internally to update rendering settings whenever parameters
1122	# change in the popup settings panel. Sends the new settings off
1123	# to the back end.
1124	# ----------------------------------------------------------------------
1125	itcl::body Rappture::VtkMeshViewer::InitSettings { args } {
1126	foreach setting $args {
1127	AdjustSetting $setting
1128	}
1129	}
1130
1131	#
1132	# AdjustSetting --
1133	#
1134	# Changes/updates a specific setting in the widget. There are
1135	# usually user-setable option. Commands are sent to the render
1136	# server.
1137	#
1138	itcl::body Rappture::VtkMeshViewer::AdjustSetting {what {value ""}} {
1139	if { ![isconnected] } {
1140	return
1141	}
1142	switch -- $what {
1143	"-outline" {
1144	set bool $_settings($what)
1145	# Only display a outline for the currently visible sets.
1146	SendCmd "outline visible 0"
1147	foreach dataset [CurrentDatasets -visible] {
1148	SendCmd "outline visible $bool $dataset"
1149	}
1150	}
1151	"-polydataopacity" {
1152	set _settings($what) [expr $_widget($what) * 0.01]
1153	EventuallySetPolydataOpacity
1154	}
1155	"-polydatawireframe" {
1156	set bool $_settings($what)
1157	SendCmd "polydata wireframe $bool"
1158	}
1159	"-polydatavisible" {
1160	set bool $_settings($what)
1161	# Only change visibility of data sets marked "visible".
1162	foreach dataset [CurrentDatasets -visible] {
1163	SendCmd "polydata visible $bool $dataset"
1164	}
1165	}
1166	"-polydatalighting" {
1167	set bool $_settings($what)
1168	SendCmd "polydata lighting $bool"
1169	}
1170	"-polydataedges" {
1171	set bool $_settings($what)
1172	SendCmd "polydata edges $bool"
1173	}
1174	"-axesvisible" {
1175	set bool $_settings($what)
1176	SendCmd "axis visible all $bool"
1177	}
1178	"-axislabels" {
1179	set bool $_settings($what)
1180	SendCmd "axis labels all $bool"
1181	}
1182	"-axisminorticks" {
1183	set bool $_settings($what)
1184	SendCmd "axis minticks all $bool"
1185	}
1186	"-xgrid" {
1187	set bool $_settings($what)
1188	SendCmd "axis grid x $bool"
1189	}
1190	"-ygrid" {
1191	set bool $_settings($what)
1192	SendCmd "axis grid y $bool"
1193	}
1194	"-zgrid" {
1195	set bool $_settings($what)
1196	SendCmd "axis grid z $bool"
1197	}
1198	"-axismode" {
1199	set mode [$itk_component(axismode) value]
1200	set mode [$itk_component(axismode) translate $mode]
1201	SendCmd "axis flymode $mode"
1202	}
1203	default {
1204	error "don't know how to fix $what"
1205	}
1206	}
1207	}
1208
1209	# ----------------------------------------------------------------------
1210	# CONFIGURATION OPTION: -plotbackground
1211	# ----------------------------------------------------------------------
1212	itcl::configbody Rappture::VtkMeshViewer::plotbackground {
1213	if { [isconnected] } {
1214	set rgb [Color2RGB $itk_option(-plotbackground)]
1215	SendCmd "screen bgcolor $rgb"
1216	}
1217	}
1218
1219	# ----------------------------------------------------------------------
1220	# CONFIGURATION OPTION: -plotforeground
1221	# ----------------------------------------------------------------------
1222	itcl::configbody Rappture::VtkMeshViewer::plotforeground {
1223	if { [isconnected] } {
1224	set rgb [Color2RGB $itk_option(-plotforeground)]
1225	SendCmd "axis color all $rgb"
1226	SendCmd "outline color $rgb"
1227	}
1228	}
1229
1230	itcl::body Rappture::VtkMeshViewer::limits { dataobj } {
1231	set tag $dataobj
1232	if { ![info exists _limits($tag)] } {
1233	set data [$dataobj vtkdata -full]
1234	if { $data == "" } {
1235	continue
1236	}
1237	set tmpfile file[pid].vtk
1238	set f [open "$tmpfile" "w"]
1239	fconfigure $f -translation binary -encoding binary
1240	puts $f $data
1241	close $f
1242	set reader [vtkDataSetReader $tag-xvtkDataSetReader]
1243	$reader SetFileName $tmpfile
1244	$reader Update
1245	file delete $tmpfile
1246	set output [$reader GetOutput]
1247	set _limits($tag) [$output GetBounds]
1248	rename $output ""
1249	rename $reader ""
1250	}
1251	foreach { xMin xMax yMin yMax zMin zMax} $_limits($tag) break
1252	if {![info exists limits(xmin)] \|\| $limits(xmin) > $xMin} {
1253	set limits(xmin) $xMin
1254	}
1255	if {![info exists limits(xmax)] \|\| $limits(xmax) < $xMax} {
1256	set limits(xmax) $xMax
1257	}
1258	if {![info exists limits(ymin)] \|\| $limits(ymin) > $yMin} {
1259	set limits(ymin) $xMin
1260	}
1261	if {![info exists limits(ymax)] \|\| $limits(ymax) < $yMax} {
1262	set limits(ymax) $yMax
1263	}
1264	if {![info exists limits(zmin)] \|\| $limits(zmin) > $zMin} {
1265	set limits(zmin) $zMin
1266	}
1267	if {![info exists limits(zmax)] \|\| $limits(zmax) < $zMax} {
1268	set limits(zmax) $zMax
1269	}
1270
1271	return [array get limits]
1272	}
1273
1274	itcl::body Rappture::VtkMeshViewer::BuildPolydataTab {} {
1275
1276	set fg [option get $itk_component(hull) font Font]
1277	#set bfg [option get $itk_component(hull) boldFont Font]
1278
1279	set inner [$itk_component(main) insert end \
1280	-title "Mesh Settings" \
1281	-icon [Rappture::icon mesh]]
1282	$inner configure -borderwidth 4
1283
1284	checkbutton $inner.mesh \
1285	-text "Show Mesh" \
1286	-variable [itcl::scope _settings(-polydatavisible)] \
1287	-command [itcl::code $this AdjustSetting -polydatavisible] \
1288	-font "Arial 9" -anchor w
1289
1290	checkbutton $inner.outline \
1291	-text "Show Outline" \
1292	-variable [itcl::scope _settings(-outline)] \
1293	-command [itcl::code $this AdjustSetting -outline] \
1294	-font "Arial 9" -anchor w
1295
1296	checkbutton $inner.wireframe \
1297	-text "Show Wireframe" \
1298	-variable [itcl::scope _settings(-polydatawireframe)] \
1299	-command [itcl::code $this AdjustSetting -polydatawireframe] \
1300	-font "Arial 9" -anchor w
1301
1302	checkbutton $inner.lighting \
1303	-text "Enable Lighting" \
1304	-variable [itcl::scope _settings(-polydatalighting)] \
1305	-command [itcl::code $this AdjustSetting -polydatalighting] \
1306	-font "Arial 9" -anchor w
1307
1308	checkbutton $inner.edges \
1309	-text "Show Edges" \
1310	-variable [itcl::scope _settings(-polydataedges)] \
1311	-command [itcl::code $this AdjustSetting -polydataedges] \
1312	-font "Arial 9" -anchor w
1313
1314	itk_component add field_l {
1315	label $inner.field_l -text "Field" -font "Arial 9"
1316	} {
1317	ignore -font
1318	}
1319	itk_component add field {
1320	Rappture::Combobox $inner.field -width 10 -editable no
1321	}
1322	bind $inner.field <<Value>> \
1323	[itcl::code $this AdjustSetting -field]
1324
1325	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1326	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1327	-variable [itcl::scope _widget(-polydataopacity)] \
1328	-width 10 \
1329	-showvalue off \
1330	-command [itcl::code $this AdjustSetting -polydataopacity]
1331	$inner.opacity set [expr $_settings(-polydataopacity) * 100.0]
1332
1333	blt::table $inner \
1334	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1335	1,0 $inner.outline -cspan 2 -anchor w -pady 2 \
1336	2,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1337	3,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1338	4,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1339	5,0 $inner.opacity_l -anchor w -pady 2 \
1340	5,1 $inner.opacity -fill x -pady 2
1341
1342	blt::table configure $inner r* c* -resize none
1343	blt::table configure $inner r7 c1 -resize expand
1344	}
1345
1346	itcl::body Rappture::VtkMeshViewer::BuildAxisTab {} {
1347
1348	set fg [option get $itk_component(hull) font Font]
1349	#set bfg [option get $itk_component(hull) boldFont Font]
1350
1351	set inner [$itk_component(main) insert end \
1352	-title "Axis Settings" \
1353	-icon [Rappture::icon axis2]]
1354	$inner configure -borderwidth 4
1355
1356	checkbutton $inner.visible \
1357	-text "Axes" \
1358	-variable [itcl::scope _settings(-axesvisible)] \
1359	-command [itcl::code $this AdjustSetting -axesvisible] \
1360	-font "Arial 9"
1361
1362	checkbutton $inner.labels \
1363	-text "Axis Labels" \
1364	-variable [itcl::scope _settings(-axislabels)] \
1365	-command [itcl::code $this AdjustSetting -axislabels] \
1366	-font "Arial 9"
1367	label $inner.grid_l -text "Grid" -font "Arial 9"
1368	checkbutton $inner.xgrid \
1369	-text "X" \
1370	-variable [itcl::scope _settings(-xgrid)] \
1371	-command [itcl::code $this AdjustSetting -xgrid] \
1372	-font "Arial 9"
1373	checkbutton $inner.ygrid \
1374	-text "Y" \
1375	-variable [itcl::scope _settings(-ygrid)] \
1376	-command [itcl::code $this AdjustSetting -ygrid] \
1377	-font "Arial 9"
1378	checkbutton $inner.zgrid \
1379	-text "Z" \
1380	-variable [itcl::scope _settings(-zgrid)] \
1381	-command [itcl::code $this AdjustSetting -zgrid] \
1382	-font "Arial 9"
1383	checkbutton $inner.minorticks \
1384	-text "Minor Ticks" \
1385	-variable [itcl::scope _settings(-axisminorticks)] \
1386	-command [itcl::code $this AdjustSetting -axisminorticks] \
1387	-font "Arial 9"
1388
1389	label $inner.mode_l -text "Mode" -font "Arial 9"
1390
1391	itk_component add axismode {
1392	Rappture::Combobox $inner.mode -width 10 -editable no
1393	}
1394	$inner.mode choices insert end \
1395	"static_triad" "static" \
1396	"closest_triad" "closest" \
1397	"furthest_triad" "farthest" \
1398	"outer_edges" "outer"
1399	$itk_component(axismode) value "static"
1400	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1401
1402	blt::table $inner \
1403	0,0 $inner.visible -anchor w -cspan 4 \
1404	1,0 $inner.labels -anchor w -cspan 4 \
1405	2,0 $inner.minorticks -anchor w -cspan 4 \
1406	4,0 $inner.grid_l -anchor w \
1407	4,1 $inner.xgrid -anchor w \
1408	4,2 $inner.ygrid -anchor w \
1409	4,3 $inner.zgrid -anchor w \
1410	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1411	5,1 $inner.mode -fill x -cspan 3
1412
1413	blt::table configure $inner r* c* -resize none
1414	blt::table configure $inner r7 c6 -resize expand
1415	blt::table configure $inner r3 -height 0.125i
1416	}
1417
1418	itcl::body Rappture::VtkMeshViewer::BuildCameraTab {} {
1419	set inner [$itk_component(main) insert end \
1420	-title "Camera Settings" \
1421	-icon [Rappture::icon camera]]
1422	$inner configure -borderwidth 4
1423
1424	label $inner.view_l -text "view" -font "Arial 9"
1425	set f [frame $inner.view]
1426	foreach side { front back left right top bottom } {
1427	button $f.$side -image [Rappture::icon view$side] \
1428	-command [itcl::code $this SetOrientation $side]
1429	Rappture::Tooltip::for $f.$side "Change the view to $side"
1430	pack $f.$side -side left
1431	}
1432
1433	blt::table $inner \
1434	0,0 $inner.view_l -anchor e -pady 2 \
1435	0,1 $inner.view -anchor w -pady 2
1436	blt::table configure $inner r0 -resize none
1437
1438	set labels { qx qy qz qw xpan ypan zoom }
1439	set row 1
1440	foreach tag $labels {
1441	label $inner.${tag}label -text $tag -font "Arial 9"
1442	entry $inner.${tag} -font "Arial 9" -bg white \
1443	-textvariable [itcl::scope _view(-$tag)]
1444	bind $inner.${tag} <Return> \
1445	[itcl::code $this camera set -${tag}]
1446	bind $inner.${tag} <KP_Enter> \
1447	[itcl::code $this camera set -${tag}]
1448	blt::table $inner \
1449	$row,0 $inner.${tag}label -anchor e -pady 2 \
1450	$row,1 $inner.${tag} -anchor w -pady 2
1451	blt::table configure $inner r$row -resize none
1452	incr row
1453	}
1454	checkbutton $inner.ortho \
1455	-text "Orthographic Projection" \
1456	-variable [itcl::scope _view(-ortho)] \
1457	-command [itcl::code $this camera set -ortho] \
1458	-font "Arial 9"
1459	blt::table $inner \
1460	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1461	blt::table configure $inner r$row -resize none
1462	incr row
1463
1464	blt::table configure $inner c* -resize none
1465	blt::table configure $inner c2 -resize expand
1466	blt::table configure $inner r$row -resize expand
1467	}
1468
1469	#
1470	# camera --
1471	#
1472	itcl::body Rappture::VtkMeshViewer::camera {option args} {
1473	switch -- $option {
1474	"show" {
1475	puts [array get _view]
1476	}
1477	"set" {
1478	set what [lindex $args 0]
1479	set x $_view($what)
1480	set code [catch { string is double $x } result]
1481	if { $code != 0 \|\| !$result } {
1482	return
1483	}
1484	switch -- $what {
1485	"-ortho" {
1486	if {$_view($what)} {
1487	SendCmd "camera mode ortho"
1488	} else {
1489	SendCmd "camera mode persp"
1490	}
1491	}
1492	"-xpan" - "-ypan" {
1493	PanCamera
1494	}
1495	"-qx" - "-qy" - "-qz" - "-qw" {
1496	set q [ViewToQuaternion]
1497	$_arcball quaternion $q
1498	EventuallyRotate $q
1499	}
1500	"-zoom" {
1501	SendCmd "camera zoom $_view($what)"
1502	}
1503	}
1504	}
1505	}
1506	}
1507
1508	itcl::body Rappture::VtkMeshViewer::GetVtkData { args } {
1509	set bytes ""
1510	foreach dataobj [get] {
1511	set contents [$dataobj vtkdata -full]
1512	append bytes "$contents\n"
1513	}
1514	return [list .vtk $bytes]
1515	}
1516
1517	itcl::body Rappture::VtkMeshViewer::GetImage { args } {
1518	if { [image width $_image(download)] > 0 &&
1519	[image height $_image(download)] > 0 } {
1520	set bytes [$_image(download) data -format "jpeg -quality 100"]
1521	set bytes [Rappture::encoding::decode -as b64 $bytes]
1522	return [list .jpg $bytes]
1523	}
1524	return ""
1525	}
1526
1527	itcl::body Rappture::VtkMeshViewer::BuildDownloadPopup { popup command } {
1528	Rappture::Balloon $popup \
1529	-title "[Rappture::filexfer::label downloadWord] as..."
1530	set inner [$popup component inner]
1531	label $inner.summary -text "" -anchor w
1532	radiobutton $inner.vtk_button -text "VTK data file" \
1533	-variable [itcl::scope _downloadPopup(format)] \
1534	-font "Helvetica 9 " \
1535	-value vtk
1536	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
1537	radiobutton $inner.image_button -text "Image File" \
1538	-variable [itcl::scope _downloadPopup(format)] \
1539	-value image
1540	Rappture::Tooltip::for $inner.image_button \
1541	"Save as digital image."
1542
1543	button $inner.ok -text "Save" \
1544	-highlightthickness 0 -pady 2 -padx 3 \
1545	-command $command \
1546	-compound left \
1547	-image [Rappture::icon download]
1548
1549	button $inner.cancel -text "Cancel" \
1550	-highlightthickness 0 -pady 2 -padx 3 \
1551	-command [list $popup deactivate] \
1552	-compound left \
1553	-image [Rappture::icon cancel]
1554
1555	blt::table $inner \
1556	0,0 $inner.summary -cspan 2 \
1557	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
1558	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
1559	4,1 $inner.cancel -width .9i -fill y \
1560	4,0 $inner.ok -padx 2 -width .9i -fill y
1561	blt::table configure $inner r3 -height 4
1562	blt::table configure $inner r4 -pady 4
1563	raise $inner.image_button
1564	$inner.vtk_button invoke
1565	return $inner
1566	}
1567
1568	itcl::body Rappture::VtkMeshViewer::SetObjectStyle { dataobj } {
1569	# Parse style string.
1570	set tag $dataobj
1571	set type [$dataobj type]
1572
1573	array set style {
1574	-cloudstyle mesh
1575	-color white
1576	-edgecolor black
1577	-edges 1
1578	-lighting 1
1579	-linewidth 1.0
1580	-opacity 1.0
1581	-outline 0
1582	-visible 1
1583	-wireframe 0
1584	}
1585	if { $dataobj != $_first } {
1586	set style(-wireframe) 1
1587	}
1588	if {$type == "cloud"} {
1589	set style(-cloudstyle) points
1590	set style(-edges) 0
1591	set style(-edgecolor) white
1592	}
1593	array set style [$dataobj hints style]
1594
1595	if {[$dataobj hints color] != ""} {
1596	set style(-color) [$dataobj hints color]
1597	}
1598	SendCmd "outline add $tag"
1599	SendCmd "outline color [Color2RGB $style(-color)] $tag"
1600	SendCmd "outline visible $style(-outline) $tag"
1601	set _settings(-outline) $style(-outline)
1602
1603	SendCmd "polydata add $tag"
1604	SendCmd "polydata visible $style(-visible) $tag"
1605	set _settings(-polydatavisible) $style(-visible)
1606	SendCmd "polydata cloudstyle $style(-cloudstyle) $tag"
1607	SendCmd "polydata edges $style(-edges) $tag"
1608	set _settings(-polydataedges) $style(-edges)
1609	SendCmd "polydata color [Color2RGB $style(-color)] $tag"
1610	SendCmd "polydata lighting $style(-lighting) $tag"
1611	set _settings(-polydatalighting) $style(-lighting)
1612	SendCmd "polydata linecolor [Color2RGB $style(-edgecolor)] $tag"
1613	SendCmd "polydata linewidth $style(-linewidth) $tag"
1614	SendCmd "polydata opacity $style(-opacity) $tag"
1615	set _settings(-polydataopacity) $style(-opacity)
1616	set _widget(-polydataopacity) [expr 100.0 * $style(-opacity)]
1617	SendCmd "polydata wireframe $style(-wireframe) $tag"
1618	set _settings(-polydatawireframe) $style(-wireframe)
1619	set havePolyData 1
1620	}
1621
1622	itcl::body Rappture::VtkMeshViewer::IsValidObject { dataobj } {
1623	if {[catch {$dataobj isa Rappture::Mesh} valid] != 0 \|\| !$valid} {
1624	return 0
1625	}
1626	return 1
1627	}
1628
1629	itcl::body Rappture::VtkMeshViewer::SetOrientation { side } {
1630	array set positions {
1631	front "1 0 0 0"
1632	back "0 0 1 0"
1633	left "0.707107 0 -0.707107 0"
1634	right "0.707107 0 0.707107 0"
1635	top "0.707107 -0.707107 0 0"
1636	bottom "0.707107 0.707107 0 0"
1637	}
1638	foreach name { -qw -qx -qy -qz } value $positions($side) {
1639	set _view($name) $value
1640	}
1641	set q [ViewToQuaternion]
1642	$_arcball quaternion $q
1643	SendCmd "camera orient $q"
1644	SendCmd "camera reset"
1645	set _view(-xpan) 0
1646	set _view(-ypan) 0
1647	set _view(-zoom) 1.0
1648	}

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