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source: trunk/gui/scripts/vtkmeshviewer.tcl @ 4689

Last change on this file since 4689 was 4689, checked in by ldelgass, 9 years ago
Axis fixes, removed currently unused clip-plane code
File size: 54.6 KB

Line
1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkmeshviewer - Vtk mesh viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2014 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *VtkMeshViewer.width 4i widgetDefault
19	option add VtkMeshViewercursor crosshair widgetDefault
20	option add *VtkMeshViewer.height 4i widgetDefault
21	option add *VtkMeshViewer.foreground black widgetDefault
22	option add *VtkMeshViewer.controlBackground gray widgetDefault
23	option add *VtkMeshViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkMeshViewer.plotBackground black widgetDefault
25	option add *VtkMeshViewer.plotForeground white widgetDefault
26	option add *VtkMeshViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkMeshViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkMeshViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkMeshViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40
41	constructor { hostlist args } {
42	Rappture::VisViewer::constructor $hostlist
43	} {
44	# defined below
45	}
46	destructor {
47	# defined below
48	}
49	public proc SetServerList { namelist } {
50	Rappture::VisViewer::SetServerList "vtkvis" $namelist
51	}
52	public method add {dataobj {settings ""}}
53	public method camera {option args}
54	public method delete {args}
55	public method disconnect {}
56	public method download {option args}
57	public method get {args}
58	public method isconnected {}
59	public method limits { colormap }
60	public method parameters {title args} {
61	# do nothing
62	}
63	public method scale {args}
64
65	protected method Connect {}
66	protected method CurrentDatasets {args}
67	protected method Disconnect {}
68	protected method DoResize {}
69	protected method DoRotate {}
70	protected method AdjustSetting {what {value ""}}
71	protected method InitSettings { args }
72	protected method Pan {option x y}
73	protected method Pick {x y}
74	protected method Rebuild {}
75	protected method ReceiveDataset { args }
76	protected method ReceiveImage { args }
77	protected method Rotate {option x y}
78	protected method Zoom {option}
79
80	# The following methods are only used by this class.
81	private method BuildAxisTab {}
82	private method BuildCameraTab {}
83	private method BuildCutawayTab {}
84	private method BuildDownloadPopup { widget command }
85	private method BuildPolydataTab {}
86	private method EventuallyResize { w h }
87	private method EventuallyRotate { q }
88	private method EventuallySetPolydataOpacity {}
89	private method GetImage { args }
90	private method GetVtkData { args }
91	private method IsValidObject { dataobj }
92	private method PanCamera {}
93	private method SetObjectStyle { dataobj }
94	private method SetOrientation { side }
95	private method SetPolydataOpacity {}
96
97	private variable _arcball ""
98	private variable _dlist ""; # list of data objects
99	private variable _obj2datasets
100	private variable _obj2ovride; # maps dataobj => style override
101	private variable _datasets; # contains all the dataobj-component
102	# datasets in the server
103	private variable _colormaps; # contains all the colormaps
104	# in the server.
105	private variable _dataset2style; # maps dataobj-component to transfunc
106	private variable _style2datasets; # maps tf back to list of
107	# dataobj-components using the tf.
108	private variable _click; # info used for rotate operations
109	private variable _limits; # autoscale min/max for all axes
110	private variable _view; # view params for 3D view
111	private variable _settings
112	private variable _widget
113	private variable _style; # Array of current component styles.
114	private variable _initialStyle; # Array of initial component styles.
115	private variable _reset 1; # Indicates that server was reset and
116	# needs to be reinitialized.
117
118	private variable _first ""; # This is the topmost dataset.
119	private variable _start 0
120	private variable _title ""
121
122	common _downloadPopup; # download options from popup
123	private common _hardcopy
124	private variable _width 0
125	private variable _height 0
126	private variable _resizePending 0
127	private variable _rotatePending 0
128	private variable _polydataOpacityPending 0
129	private variable _rotateDelay 150
130	private variable _opacityDelay 150
131	}
132
133	itk::usual VtkMeshViewer {
134	keep -background -foreground -cursor -font
135	keep -plotbackground -plotforeground
136	}
137
138	# ----------------------------------------------------------------------
139	# CONSTRUCTOR
140	# ----------------------------------------------------------------------
141	itcl::body Rappture::VtkMeshViewer::constructor {hostlist args} {
142	package require vtk
143	set _serverType "vtkvis"
144
145	# Rebuild event
146	$_dispatcher register !rebuild
147	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
148
149	# Resize event
150	$_dispatcher register !resize
151	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
152
153	# Rotate event
154	$_dispatcher register !rotate
155	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
156
157	# Polydata opacity event
158	$_dispatcher register !polydataOpacity
159	$_dispatcher dispatch $this !polydataOpacity \
160	"[itcl::code $this SetPolydataOpacity]; list"
161	#
162	# Populate parser with commands handle incoming requests
163	#
164	$_parser alias image [itcl::code $this ReceiveImage]
165	$_parser alias dataset [itcl::code $this ReceiveDataset]
166
167	# Initialize the view to some default parameters.
168	array set _view {
169	qw 0.853553
170	qx -0.353553
171	qy 0.353553
172	qz 0.146447
173	zoom 1.0
174	xpan 0
175	ypan 0
176	ortho 0
177	}
178	set _arcball [blt::arcball create 100 100]
179	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
180	$_arcball quaternion $q
181
182	set _limits(zmin) 0.0
183	set _limits(zmax) 1.0
184
185	array set _settings {
186	-axesvisible 1
187	-axislabels 1
188	-axisminorticks 1
189	-outline 0
190	-polydataedges 0
191	-polydatalighting 1
192	-polydataopacity 1.0
193	-polydatavisible 1
194	-polydatawireframe 0
195	-xgrid 0
196	-ygrid 0
197	-zgrid 0
198	}
199	array set _widget {
200	-polydataopacity 100
201	}
202	itk_component add view {
203	canvas $itk_component(plotarea).view \
204	-highlightthickness 0 -borderwidth 0
205	} {
206	usual
207	ignore -highlightthickness -borderwidth -background
208	}
209
210	itk_component add fieldmenu {
211	menu $itk_component(plotarea).menu -bg black -fg white -relief flat \
212	-tearoff no
213	} {
214	usual
215	ignore -background -foreground -relief -tearoff
216	}
217
218	set c $itk_component(view)
219	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
220	bind $c <4> [itcl::code $this Zoom in 0.25]
221	bind $c <5> [itcl::code $this Zoom out 0.25]
222	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
223	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
224	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
225	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
226	bind $c <Enter> "focus %W"
227	bind $c <Control-F1> [itcl::code $this ToggleConsole]
228
229	# Fix the scrollregion in case we go off screen
230	$c configure -scrollregion [$c bbox all]
231
232	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
233	set _map(cwidth) -1
234	set _map(cheight) -1
235	set _map(zoom) 1.0
236	set _map(original) ""
237
238	set f [$itk_component(main) component controls]
239	itk_component add reset {
240	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
241	-highlightthickness 0 \
242	-image [Rappture::icon reset-view] \
243	-command [itcl::code $this Zoom reset]
244	} {
245	usual
246	ignore -highlightthickness
247	}
248	pack $itk_component(reset) -side top -padx 2 -pady 2
249	Rappture::Tooltip::for $itk_component(reset) \
250	"Reset the view to the default zoom level"
251
252	itk_component add zoomin {
253	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
254	-highlightthickness 0 \
255	-image [Rappture::icon zoom-in] \
256	-command [itcl::code $this Zoom in]
257	} {
258	usual
259	ignore -highlightthickness
260	}
261	pack $itk_component(zoomin) -side top -padx 2 -pady 2
262	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
263
264	itk_component add zoomout {
265	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
266	-highlightthickness 0 \
267	-image [Rappture::icon zoom-out] \
268	-command [itcl::code $this Zoom out]
269	} {
270	usual
271	ignore -highlightthickness
272	}
273	pack $itk_component(zoomout) -side top -padx 2 -pady 2
274	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
275
276	BuildPolydataTab
277	BuildAxisTab
278	BuildCameraTab
279
280	# Hack around the Tk panewindow. The problem is that the requested
281	# size of the 3d view isn't set until an image is retrieved from
282	# the server. So the panewindow uses the tiny size.
283	set w 10000
284	pack forget $itk_component(view)
285	blt::table $itk_component(plotarea) \
286	0,0 $itk_component(view) -fill both -reqwidth $w
287	blt::table configure $itk_component(plotarea) c1 -resize none
288
289	# Bindings for rotation via mouse
290	bind $itk_component(view) <ButtonPress-1> \
291	[itcl::code $this Rotate click %x %y]
292	bind $itk_component(view) <B1-Motion> \
293	[itcl::code $this Rotate drag %x %y]
294	bind $itk_component(view) <ButtonRelease-1> \
295	[itcl::code $this Rotate release %x %y]
296	bind $itk_component(view) <Configure> \
297	[itcl::code $this EventuallyResize %w %h]
298
299	# Bindings for panning via mouse
300	bind $itk_component(view) <ButtonPress-2> \
301	[itcl::code $this Pan click %x %y]
302	bind $itk_component(view) <B2-Motion> \
303	[itcl::code $this Pan drag %x %y]
304	bind $itk_component(view) <ButtonRelease-2> \
305	[itcl::code $this Pan release %x %y]
306
307	#bind $itk_component(view) <ButtonRelease-3> \
308	# [itcl::code $this Pick %x %y]
309
310	# Bindings for panning via keyboard
311	bind $itk_component(view) <KeyPress-Left> \
312	[itcl::code $this Pan set -10 0]
313	bind $itk_component(view) <KeyPress-Right> \
314	[itcl::code $this Pan set 10 0]
315	bind $itk_component(view) <KeyPress-Up> \
316	[itcl::code $this Pan set 0 -10]
317	bind $itk_component(view) <KeyPress-Down> \
318	[itcl::code $this Pan set 0 10]
319	bind $itk_component(view) <Shift-KeyPress-Left> \
320	[itcl::code $this Pan set -2 0]
321	bind $itk_component(view) <Shift-KeyPress-Right> \
322	[itcl::code $this Pan set 2 0]
323	bind $itk_component(view) <Shift-KeyPress-Up> \
324	[itcl::code $this Pan set 0 -2]
325	bind $itk_component(view) <Shift-KeyPress-Down> \
326	[itcl::code $this Pan set 0 2]
327
328	# Bindings for zoom via keyboard
329	bind $itk_component(view) <KeyPress-Prior> \
330	[itcl::code $this Zoom out]
331	bind $itk_component(view) <KeyPress-Next> \
332	[itcl::code $this Zoom in]
333
334	bind $itk_component(view) <Enter> "focus $itk_component(view)"
335
336	if {[string equal "x11" [tk windowingsystem]]} {
337	# Bindings for zoom via mouse
338	bind $itk_component(view) <4> [itcl::code $this Zoom out]
339	bind $itk_component(view) <5> [itcl::code $this Zoom in]
340	}
341
342	set _image(download) [image create photo]
343
344	eval itk_initialize $args
345	Connect
346	}
347
348	# ----------------------------------------------------------------------
349	# DESTRUCTOR
350	# ----------------------------------------------------------------------
351	itcl::body Rappture::VtkMeshViewer::destructor {} {
352	Disconnect
353	$_dispatcher cancel !rebuild
354	$_dispatcher cancel !resize
355	$_dispatcher cancel !rotate
356	image delete $_image(plot)
357	image delete $_image(download)
358	catch { blt::arcball destroy $_arcball }
359	}
360
361	itcl::body Rappture::VtkMeshViewer::DoResize {} {
362	if { $_width < 2 } {
363	set _width 500
364	}
365	if { $_height < 2 } {
366	set _height 500
367	}
368	set _start [clock clicks -milliseconds]
369	SendCmd "screen size $_width $_height"
370
371	set _resizePending 0
372	}
373
374	itcl::body Rappture::VtkMeshViewer::DoRotate {} {
375	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
376	SendCmd "camera orient $q"
377	set _rotatePending 0
378	}
379
380	itcl::body Rappture::VtkMeshViewer::EventuallyResize { w h } {
381	set _width $w
382	set _height $h
383	$_arcball resize $w $h
384	if { !$_resizePending } {
385	set _resizePending 1
386	$_dispatcher event -after 200 !resize
387	}
388	}
389
390	itcl::body Rappture::VtkMeshViewer::EventuallyRotate { q } {
391	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
392	if { !$_rotatePending } {
393	set _rotatePending 1
394	$_dispatcher event -after $_rotateDelay !rotate
395	}
396	}
397
398	itcl::body Rappture::VtkMeshViewer::SetPolydataOpacity {} {
399	set _polydataOpacityPending 0
400	set val $_settings(-polydataopacity)
401	SendCmd "polydata opacity $val"
402	}
403
404	itcl::body Rappture::VtkMeshViewer::EventuallySetPolydataOpacity {} {
405	if { !$_polydataOpacityPending } {
406	set _polydataOpacityPending 1
407	$_dispatcher event -after $_opacityDelay !polydataOpacity
408	}
409	}
410
411	# ----------------------------------------------------------------------
412	# USAGE: add <dataobj> ?<settings>?
413	#
414	# Clients use this to add a data object to the plot. The optional
415	# <settings> are used to configure the plot. Allowed settings are
416	# -color, -brightness, -width, -linestyle, and -raise.
417	# ----------------------------------------------------------------------
418	itcl::body Rappture::VtkMeshViewer::add {dataobj {settings ""}} {
419	array set params {
420	-color auto
421	-width 1
422	-linestyle solid
423	-brightness 0
424	-raise 0
425	-description ""
426	-param ""
427	-type ""
428	}
429	array set params $settings
430	set params(-description) ""
431	set params(-param) ""
432	array set params $settings
433
434	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
435	# can't handle -autocolors yet
436	set params(-color) black
437	}
438	set pos [lsearch -exact $_dlist $dataobj]
439	if {$pos < 0} {
440	lappend _dlist $dataobj
441	}
442	set _obj2ovride($dataobj-color) $params(-color)
443	set _obj2ovride($dataobj-width) $params(-width)
444	set _obj2ovride($dataobj-raise) $params(-raise)
445	$_dispatcher event -idle !rebuild
446	}
447
448	# ----------------------------------------------------------------------
449	# USAGE: delete ?<dataobj1> <dataobj2> ...?
450	#
451	# Clients use this to delete a dataobj from the plot. If no dataobjs
452	# are specified, then all dataobjs are deleted. No data objects are
453	# deleted. They are only removed from the display list.
454	#
455	# ----------------------------------------------------------------------
456	itcl::body Rappture::VtkMeshViewer::delete {args} {
457	if { [llength $args] == 0} {
458	set args $_dlist
459	}
460	# Delete all specified dataobjs
461	set changed 0
462	foreach dataobj $args {
463	set pos [lsearch -exact $_dlist $dataobj]
464	if { $pos < 0 } {
465	continue; # Don't know anything about it.
466	}
467	# Remove it from the dataobj list.
468	set _dlist [lreplace $_dlist $pos $pos]
469	array unset _obj2ovride $dataobj-*
470	set changed 1
471	}
472	# If anything changed, then rebuild the plot
473	if { $changed } {
474	$_dispatcher event -idle !rebuild
475	}
476	}
477
478	# ----------------------------------------------------------------------
479	# USAGE: get ?-objects?
480	# USAGE: get ?-visible?
481	# USAGE: get ?-image view?
482	#
483	# Clients use this to query the list of objects being plotted, in
484	# order from bottom to top of this result. The optional "-image"
485	# flag can also request the internal images being shown.
486	# ----------------------------------------------------------------------
487	itcl::body Rappture::VtkMeshViewer::get {args} {
488	if {[llength $args] == 0} {
489	set args "-objects"
490	}
491
492	set op [lindex $args 0]
493	switch -- $op {
494	"-objects" {
495	# put the dataobj list in order according to -raise options
496	set dlist {}
497	foreach dataobj $_dlist {
498	if { ![IsValidObject $dataobj] } {
499	continue
500	}
501	if {[info exists _obj2ovride($dataobj-raise)] &&
502	$_obj2ovride($dataobj-raise)} {
503	set dlist [linsert $dlist 0 $dataobj]
504	} else {
505	lappend dlist $dataobj
506	}
507	}
508	return $dlist
509	}
510	"-visible" {
511	set dlist {}
512	foreach dataobj $_dlist {
513	if { ![IsValidObject $dataobj] } {
514	continue
515	}
516	if { ![info exists _obj2ovride($dataobj-raise)] } {
517	# No setting indicates that the object isn't visible.
518	continue
519	}
520	# Otherwise use the -raise parameter to put the object to
521	# the front of the list.
522	if { $_obj2ovride($dataobj-raise) } {
523	set dlist [linsert $dlist 0 $dataobj]
524	} else {
525	lappend dlist $dataobj
526	}
527	}
528	return $dlist
529	}
530	-image {
531	if {[llength $args] != 2} {
532	error "wrong # args: should be \"get -image view\""
533	}
534	switch -- [lindex $args end] {
535	view {
536	return $_image(plot)
537	}
538	default {
539	error "bad image name \"[lindex $args end]\": should be view"
540	}
541	}
542	}
543	default {
544	error "bad option \"$op\": should be -objects or -image"
545	}
546	}
547	}
548
549	# ----------------------------------------------------------------------
550	# USAGE: scale ?<data1> <data2> ...?
551	#
552	# Sets the default limits for the overall plot according to the
553	# limits of the data for all of the given <data> objects. This
554	# accounts for all objects--even those not showing on the screen.
555	# Because of this, the limits are appropriate for all objects as
556	# the user scans through data in the ResultSet viewer.
557	# ----------------------------------------------------------------------
558	itcl::body Rappture::VtkMeshViewer::scale {args} {
559	foreach dataobj $args {
560	array set bounds [limits $dataobj]
561	if {![info exists _limits(xmin)] \|\| $_limits(xmin) > $bounds(xmin)} {
562	set _limits(xmin) $bounds(xmin)
563	}
564	if {![info exists _limits(xmax)] \|\| $_limits(xmax) < $bounds(xmax)} {
565	set _limits(xmax) $bounds(xmax)
566	}
567
568	if {![info exists _limits(ymin)] \|\| $_limits(ymin) > $bounds(ymin)} {
569	set _limits(ymin) $bounds(ymin)
570	}
571	if {![info exists _limits(ymax)] \|\| $_limits(ymax) < $bounds(ymax)} {
572	set _limits(ymax) $bounds(ymax)
573	}
574
575	if {![info exists _limits(zmin)] \|\| $_limits(zmin) > $bounds(zmin)} {
576	set _limits(zmin) $bounds(zmin)
577	}
578	if {![info exists _limits(zmax)] \|\| $_limits(zmax) < $bounds(zmax)} {
579	set _limits(zmax) $bounds(zmax)
580	}
581	}
582	}
583
584	# ----------------------------------------------------------------------
585	# USAGE: download coming
586	# USAGE: download controls <downloadCommand>
587	# USAGE: download now
588	#
589	# Clients use this method to create a downloadable representation
590	# of the plot. Returns a list of the form {ext string}, where
591	# "ext" is the file extension (indicating the type of data) and
592	# "string" is the data itself.
593	# ----------------------------------------------------------------------
594	itcl::body Rappture::VtkMeshViewer::download {option args} {
595	switch $option {
596	coming {
597	if {[catch {
598	blt::winop snap $itk_component(plotarea) $_image(download)
599	}]} {
600	$_image(download) configure -width 1 -height 1
601	$_image(download) put #000000
602	}
603	}
604	controls {
605	set popup .vtkviewerdownload
606	if { ![winfo exists .vtkviewerdownload] } {
607	set inner [BuildDownloadPopup $popup [lindex $args 0]]
608	} else {
609	set inner [$popup component inner]
610	}
611	set _downloadPopup(image_controls) $inner.image_frame
612	set num [llength [get]]
613	set num [expr {($num == 1) ? "1 result" : "$num results"}]
614	set word [Rappture::filexfer::label downloadWord]
615	$inner.summary configure -text "$word $num in the following format:"
616	update idletasks ;# Fix initial sizes
617	return $popup
618	}
619	now {
620	set popup .vtkviewerdownload
621	if {[winfo exists .vtkviewerdownload]} {
622	$popup deactivate
623	}
624	switch -- $_downloadPopup(format) {
625	"image" {
626	return [$this GetImage [lindex $args 0]]
627	}
628	"vtk" {
629	return [$this GetVtkData [lindex $args 0]]
630	}
631	}
632	return ""
633	}
634	default {
635	error "bad option \"$option\": should be coming, controls, now"
636	}
637	}
638	}
639
640	# ----------------------------------------------------------------------
641	# USAGE: Connect ?<host:port>,<host:port>...?
642	#
643	# Clients use this method to establish a connection to a new
644	# server, or to reestablish a connection to the previous server.
645	# Any existing connection is automatically closed.
646	# ----------------------------------------------------------------------
647	itcl::body Rappture::VtkMeshViewer::Connect {} {
648	global readyForNextFrame
649	set readyForNextFrame 1
650	set _hosts [GetServerList "vtkvis"]
651	if { "" == $_hosts } {
652	return 0
653	}
654	set result [VisViewer::Connect $_hosts]
655	if { $result } {
656	if { $_reportClientInfo } {
657	# Tell the server the viewer, hub, user and session.
658	# Do this immediately on connect before buffering any commands
659	global env
660
661	set info {}
662	set user "???"
663	if { [info exists env(USER)] } {
664	set user $env(USER)
665	}
666	set session "???"
667	if { [info exists env(SESSION)] } {
668	set session $env(SESSION)
669	}
670	lappend info "version" "$Rappture::version"
671	lappend info "build" "$Rappture::build"
672	lappend info "svnurl" "$Rappture::svnurl"
673	lappend info "installdir" "$Rappture::installdir"
674	lappend info "hub" [exec hostname]
675	lappend info "client" "vtkmeshviewer"
676	lappend info "user" $user
677	lappend info "session" $session
678	SendCmd "clientinfo [list $info]"
679	}
680
681	set w [winfo width $itk_component(view)]
682	set h [winfo height $itk_component(view)]
683	EventuallyResize $w $h
684	}
685	return $result
686	}
687
688	#
689	# isconnected --
690	#
691	# Indicates if we are currently connected to the visualization server.
692	#
693	itcl::body Rappture::VtkMeshViewer::isconnected {} {
694	return [VisViewer::IsConnected]
695	}
696
697	#
698	# disconnect --
699	#
700	itcl::body Rappture::VtkMeshViewer::disconnect {} {
701	Disconnect
702	set _reset 1
703	}
704
705	#
706	# Disconnect --
707	#
708	# Clients use this method to disconnect from the current rendering
709	# server.
710	#
711	itcl::body Rappture::VtkMeshViewer::Disconnect {} {
712	VisViewer::Disconnect
713
714	# disconnected -- no more data sitting on server
715	array unset _datasets
716	array unset _data
717	array unset _colormaps
718	global readyForNextFrame
719	set readyForNextFrame 1
720	}
721
722	# ----------------------------------------------------------------------
723	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
724	#
725	# Invoked automatically whenever the "image" command comes in from
726	# the rendering server. Indicates that binary image data with the
727	# specified <size> will follow.
728	# ----------------------------------------------------------------------
729	itcl::body Rappture::VtkMeshViewer::ReceiveImage { args } {
730	global readyForNextFrame
731	set readyForNextFrame 1
732	array set info {
733	-token "???"
734	-bytes 0
735	-type image
736	}
737	array set info $args
738	set bytes [ReceiveBytes $info(-bytes)]
739	if { $info(-type) == "image" } {
740	if 0 {
741	set f [open "last.ppm" "w"]
742	fconfigure $f -encoding binary
743	puts -nonewline $f $bytes
744	close $f
745	}
746	$_image(plot) configure -data $bytes
747	set time [clock seconds]
748	set date [clock format $time]
749	if { $_start > 0 } {
750	set finish [clock clicks -milliseconds]
751	set _start 0
752	}
753	} elseif { $info(type) == "print" } {
754	set tag $this-print-$info(-token)
755	set _hardcopy($tag) $bytes
756	}
757	}
758
759	#
760	# ReceiveDataset --
761	#
762	itcl::body Rappture::VtkMeshViewer::ReceiveDataset { args } {
763	if { ![isconnected] } {
764	return
765	}
766	set option [lindex $args 0]
767	switch -- $option {
768	"scalar" {
769	set option [lindex $args 1]
770	switch -- $option {
771	"world" {
772	foreach { x y z value tag } [lrange $args 2 end] break
773	}
774	"pixel" {
775	foreach { x y value tag } [lrange $args 2 end] break
776	}
777	}
778	}
779	"vector" {
780	set option [lindex $args 1]
781	switch -- $option {
782	"world" {
783	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
784	}
785	"pixel" {
786	foreach { x y vx vy vz tag } [lrange $args 2 end] break
787	}
788	}
789	}
790	"names" {
791	foreach { name } [lindex $args 1] {
792	#puts stderr "Dataset: $name"
793	}
794	}
795	default {
796	error "unknown dataset option \"$option\" from server"
797	}
798	}
799	}
800
801	# ----------------------------------------------------------------------
802	# USAGE: Rebuild
803	#
804	# Called automatically whenever something changes that affects the
805	# data in the widget. Clears any existing data and rebuilds the
806	# widget to display new data.
807	# ----------------------------------------------------------------------
808	itcl::body Rappture::VtkMeshViewer::Rebuild {} {
809
810	set w [winfo width $itk_component(view)]
811	set h [winfo height $itk_component(view)]
812	if { $w < 2 \|\| $h < 2 } {
813	$_dispatcher event -idle !rebuild
814	return
815	}
816
817	# Turn on buffering of commands to the server. We don't want to
818	# be preempted by a server disconnect/reconnect (which automatically
819	# generates a new call to Rebuild).
820	StartBufferingCommands
821
822	if { $_reset } {
823	set _width $w
824	set _height $h
825	$_arcball resize $w $h
826	DoResize
827	InitSettings -xgrid -ygrid -zgrid -axismode \
828	-axesvisible -axislabels -axisminorticks
829	StopBufferingCommands
830	SendCmd "imgflush"
831	StartBufferingCommands
832	}
833
834	set _limits(zmin) ""
835	set _limits(zmax) ""
836	set _first ""
837	SendCmd "dataset visible 0"
838	set count 0
839	foreach dataobj [get -objects] {
840	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
841	set _first $dataobj
842	}
843	set _obj2datasets($dataobj) ""
844	set tag $dataobj
845	if { ![info exists _datasets($tag)] } {
846	set bytes [$dataobj vtkdata -full]
847	if { $bytes == "" } {
848	continue
849	}
850	set length [string length $bytes]
851	if { $_reportClientInfo } {
852	set info {}
853	lappend info "tool_id" [$dataobj hints toolId]
854	lappend info "tool_name" [$dataobj hints toolName]
855	lappend info "tool_version" [$dataobj hints toolRevision]
856	lappend info "tool_title" [$dataobj hints toolTitle]
857	lappend info "dataset_label" [$dataobj hints label]
858	lappend info "dataset_size" $length
859	lappend info "dataset_tag" $tag
860	SendCmd [list "clientinfo" $info]
861	}
862	SendCmd "dataset add $tag data follows $length"
863	append _outbuf $bytes
864	set _datasets($tag) 1
865	SetObjectStyle $dataobj
866	}
867	lappend _obj2datasets($dataobj) $tag
868	if { [info exists _obj2ovride($dataobj-raise)] } {
869	SendCmd "dataset visible 1 $tag"
870	EventuallySetPolydataOpacity
871	}
872	}
873	if {"" != $_first} {
874	set location [$_first hints camera]
875	if { $location != "" } {
876	array set view $location
877	}
878
879	foreach axis { x y z } {
880	set label [$_first label ${axis}]
881	if { $label != "" } {
882	SendCmd [list axis name $axis $label]
883	}
884	set units [$_first units ${axis}]
885	if { $units != "" } {
886	SendCmd [list axis units $axis $units]
887	}
888	}
889	}
890	InitSettings -outline
891	if { $_reset } {
892	# These are settings that rely on a dataset being loaded.
893	InitSettings -polydataedges -polydatalighting -polydataopacity \
894	-polydatavisible -polydatawireframe
895
896	#SendCmd "axis lformat all %g"
897
898	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
899	$_arcball quaternion $q
900	SendCmd "camera reset"
901	if { $_view(ortho)} {
902	SendCmd "camera mode ortho"
903	} else {
904	SendCmd "camera mode persp"
905	}
906	DoRotate
907	PanCamera
908	Zoom reset
909	}
910
911	set _reset 0
912	global readyForNextFrame
913	set readyForNextFrame 0; # Don't advance to the next frame
914	# until we get an image.
915
916	# Actually write the commands to the server socket. If it fails, we don't
917	# care. We're finished here.
918	blt::busy hold $itk_component(hull)
919	StopBufferingCommands
920	blt::busy release $itk_component(hull)
921	}
922
923	# ----------------------------------------------------------------------
924	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
925	#
926	# Returns a list of server IDs for the current datasets being displayed. This
927	# is normally a single ID, but it might be a list of IDs if the current data
928	# object has multiple components.
929	# ----------------------------------------------------------------------
930	itcl::body Rappture::VtkMeshViewer::CurrentDatasets {args} {
931	set flag [lindex $args 0]
932	switch -- $flag {
933	"-all" {
934	if { [llength $args] > 1 } {
935	error "CurrentDatasets: can't specify dataobj after \"-all\""
936	}
937	set dlist [get -objects]
938	}
939	"-visible" {
940	if { [llength $args] > 1 } {
941	set dlist {}
942	set args [lrange $args 1 end]
943	foreach dataobj $args {
944	if { [info exists _obj2ovride($dataobj-raise)] } {
945	lappend dlist $dataobj
946	}
947	}
948	} else {
949	set dlist [get -visible]
950	}
951	}
952	default {
953	set dlist $args
954	}
955	}
956	set rlist ""
957	foreach tag $dlist {
958	if { [info exists _datasets($tag)] && $_datasets($tag) } {
959	lappend rlist $tag
960	}
961	}
962	return $rlist
963	}
964
965	# ----------------------------------------------------------------------
966	# USAGE: Zoom in
967	# USAGE: Zoom out
968	# USAGE: Zoom reset
969	#
970	# Called automatically when the user clicks on one of the zoom
971	# controls for this widget. Changes the zoom for the current view.
972	# ----------------------------------------------------------------------
973	itcl::body Rappture::VtkMeshViewer::Zoom {option} {
974	switch -- $option {
975	"in" {
976	set _view(zoom) [expr {$_view(zoom)*1.25}]
977	SendCmd "camera zoom $_view(zoom)"
978	}
979	"out" {
980	set _view(zoom) [expr {$_view(zoom)*0.8}]
981	SendCmd "camera zoom $_view(zoom)"
982	}
983	"reset" {
984	array set _view {
985	qw 0.853553
986	qx -0.353553
987	qy 0.353553
988	qz 0.146447
989	zoom 1.0
990	xpan 0
991	ypan 0
992	}
993	if { $_first != "" } {
994	set location [$_first hints camera]
995	if { $location != "" } {
996	array set _view $location
997	}
998	}
999	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1000	$_arcball quaternion $q
1001	DoRotate
1002	SendCmd "camera reset"
1003	}
1004	}
1005	}
1006
1007	itcl::body Rappture::VtkMeshViewer::PanCamera {} {
1008	set x $_view(xpan)
1009	set y $_view(ypan)
1010	SendCmd "camera pan $x $y"
1011	}
1012
1013	# ----------------------------------------------------------------------
1014	# USAGE: Rotate click <x> <y>
1015	# USAGE: Rotate drag <x> <y>
1016	# USAGE: Rotate release <x> <y>
1017	#
1018	# Called automatically when the user clicks/drags/releases in the
1019	# plot area. Moves the plot according to the user's actions.
1020	# ----------------------------------------------------------------------
1021	itcl::body Rappture::VtkMeshViewer::Rotate {option x y} {
1022	switch -- $option {
1023	"click" {
1024	$itk_component(view) configure -cursor fleur
1025	set _click(x) $x
1026	set _click(y) $y
1027	}
1028	"drag" {
1029	if {[array size _click] == 0} {
1030	Rotate click $x $y
1031	} else {
1032	set w [winfo width $itk_component(view)]
1033	set h [winfo height $itk_component(view)]
1034	if {$w <= 0 \|\| $h <= 0} {
1035	return
1036	}
1037
1038	if {[catch {
1039	# this fails sometimes for no apparent reason
1040	set dx [expr {double($x-$_click(x))/$w}]
1041	set dy [expr {double($y-$_click(y))/$h}]
1042	}]} {
1043	return
1044	}
1045	if { $dx == 0 && $dy == 0 } {
1046	return
1047	}
1048	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1049	EventuallyRotate $q
1050	set _click(x) $x
1051	set _click(y) $y
1052	}
1053	}
1054	"release" {
1055	Rotate drag $x $y
1056	$itk_component(view) configure -cursor ""
1057	catch {unset _click}
1058	}
1059	default {
1060	error "bad option \"$option\": should be click, drag, release"
1061	}
1062	}
1063	}
1064
1065	itcl::body Rappture::VtkMeshViewer::Pick {x y} {
1066	foreach tag [CurrentDatasets -visible] {
1067	SendCmd "dataset getscalar pixel $x $y $tag"
1068	}
1069	}
1070
1071	# ----------------------------------------------------------------------
1072	# USAGE: $this Pan click x y
1073	# $this Pan drag x y
1074	# $this Pan release x y
1075	#
1076	# Called automatically when the user clicks on one of the zoom
1077	# controls for this widget. Changes the zoom for the current view.
1078	# ----------------------------------------------------------------------
1079	itcl::body Rappture::VtkMeshViewer::Pan {option x y} {
1080	switch -- $option {
1081	"set" {
1082	set w [winfo width $itk_component(view)]
1083	set h [winfo height $itk_component(view)]
1084	set x [expr $x / double($w)]
1085	set y [expr $y / double($h)]
1086	set _view(xpan) [expr $_view(xpan) + $x]
1087	set _view(ypan) [expr $_view(ypan) + $y]
1088	PanCamera
1089	return
1090	}
1091	"click" {
1092	set _click(x) $x
1093	set _click(y) $y
1094	$itk_component(view) configure -cursor hand1
1095	}
1096	"drag" {
1097	if { ![info exists _click(x)] } {
1098	set _click(x) $x
1099	}
1100	if { ![info exists _click(y)] } {
1101	set _click(y) $y
1102	}
1103	set w [winfo width $itk_component(view)]
1104	set h [winfo height $itk_component(view)]
1105	set dx [expr ($_click(x) - $x)/double($w)]
1106	set dy [expr ($_click(y) - $y)/double($h)]
1107	set _click(x) $x
1108	set _click(y) $y
1109	set _view(xpan) [expr $_view(xpan) - $dx]
1110	set _view(ypan) [expr $_view(ypan) - $dy]
1111	PanCamera
1112	}
1113	"release" {
1114	Pan drag $x $y
1115	$itk_component(view) configure -cursor ""
1116	}
1117	default {
1118	error "unknown option \"$option\": should set, click, drag, or release"
1119	}
1120	}
1121	}
1122
1123	# ----------------------------------------------------------------------
1124	# USAGE: InitSettings <what> ?<value>?
1125	#
1126	# Used internally to update rendering settings whenever parameters
1127	# change in the popup settings panel. Sends the new settings off
1128	# to the back end.
1129	# ----------------------------------------------------------------------
1130	itcl::body Rappture::VtkMeshViewer::InitSettings { args } {
1131	foreach setting $args {
1132	AdjustSetting $setting
1133	}
1134	}
1135
1136	#
1137	# AdjustSetting --
1138	#
1139	# Changes/updates a specific setting in the widget. There are
1140	# usually user-setable option. Commands are sent to the render
1141	# server.
1142	#
1143	itcl::body Rappture::VtkMeshViewer::AdjustSetting {what {value ""}} {
1144	if { ![isconnected] } {
1145	return
1146	}
1147	switch -- $what {
1148	"-outline" {
1149	set bool $_settings($what)
1150	# Only display a outline for the currently visible sets.
1151	SendCmd "outline visible 0"
1152	foreach dataset [CurrentDatasets -visible] {
1153	SendCmd "outline visible $bool $dataset"
1154	}
1155	}
1156	"-polydataopacity" {
1157	EventuallySetPolydataOpacity
1158	}
1159	"-polydatawireframe" {
1160	set bool $_settings($what)
1161	SendCmd "polydata wireframe $bool"
1162	}
1163	"-polydatavisible" {
1164	set bool $_settings($what)
1165	# Only change visibility of data sets marked "visible".
1166	foreach dataset [CurrentDatasets -visible] {
1167	SendCmd "polydata visible $bool $dataset"
1168	}
1169	}
1170	"-polydatalighting" {
1171	set bool $_settings($what)
1172	SendCmd "polydata lighting $bool"
1173	}
1174	"-polydataedges" {
1175	set bool $_settings($what)
1176	SendCmd "polydata edges $bool"
1177	}
1178	"-axesvisible" {
1179	set bool $_settings($what)
1180	SendCmd "axis visible all $bool"
1181	}
1182	"-axislabels" {
1183	set bool $_settings($what)
1184	SendCmd "axis labels all $bool"
1185	}
1186	"-axisminorticks" {
1187	set bool $_settings($what)
1188	SendCmd "axis minticks all $bool"
1189	}
1190	"-xgrid" {
1191	set bool $_settings($what)
1192	SendCmd "axis grid x $bool"
1193	}
1194	"-ygrid" {
1195	set bool $_settings($what)
1196	SendCmd "axis grid y $bool"
1197	}
1198	"-zgrid" {
1199	set bool $_settings($what)
1200	SendCmd "axis grid z $bool"
1201	}
1202	"-axismode" {
1203	set mode [$itk_component(axismode) value]
1204	set mode [$itk_component(axismode) translate $mode]
1205	SendCmd "axis flymode $mode"
1206	}
1207	default {
1208	error "don't know how to fix $what"
1209	}
1210	}
1211	}
1212
1213	# ----------------------------------------------------------------------
1214	# CONFIGURATION OPTION: -plotbackground
1215	# ----------------------------------------------------------------------
1216	itcl::configbody Rappture::VtkMeshViewer::plotbackground {
1217	if { [isconnected] } {
1218	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
1219	SendCmd "screen bgcolor $r $g $b"
1220	}
1221	}
1222
1223	# ----------------------------------------------------------------------
1224	# CONFIGURATION OPTION: -plotforeground
1225	# ----------------------------------------------------------------------
1226	itcl::configbody Rappture::VtkMeshViewer::plotforeground {
1227	if { [isconnected] } {
1228	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
1229	#fix this!
1230	#SendCmd "color background $r $g $b"
1231	}
1232	}
1233
1234	itcl::body Rappture::VtkMeshViewer::limits { dataobj } {
1235	set tag $dataobj
1236	if { ![info exists _limits($tag)] } {
1237	set data [$dataobj vtkdata -full]
1238	if { $data == "" } {
1239	continue
1240	}
1241	set tmpfile file[pid].vtk
1242	set f [open "$tmpfile" "w"]
1243	fconfigure $f -translation binary -encoding binary
1244	puts $f $data
1245	close $f
1246	set reader [vtkDataSetReader $tag-xvtkDataSetReader]
1247	$reader SetFileName $tmpfile
1248	$reader Update
1249	file delete $tmpfile
1250	set output [$reader GetOutput]
1251	set _limits($tag) [$output GetBounds]
1252	rename $output ""
1253	rename $reader ""
1254	}
1255	foreach { xMin xMax yMin yMax zMin zMax} $_limits($tag) break
1256	if {![info exists limits(xmin)] \|\| $limits(xmin) > $xMin} {
1257	set limits(xmin) $xMin
1258	}
1259	if {![info exists limits(xmax)] \|\| $limits(xmax) < $xMax} {
1260	set limits(xmax) $xMax
1261	}
1262	if {![info exists limits(ymin)] \|\| $limits(ymin) > $yMin} {
1263	set limits(ymin) $xMin
1264	}
1265	if {![info exists limits(ymax)] \|\| $limits(ymax) < $yMax} {
1266	set limits(ymax) $yMax
1267	}
1268	if {![info exists limits(zmin)] \|\| $limits(zmin) > $zMin} {
1269	set limits(zmin) $zMin
1270	}
1271	if {![info exists limits(zmax)] \|\| $limits(zmax) < $zMax} {
1272	set limits(zmax) $zMax
1273	}
1274
1275	return [array get limits]
1276	}
1277
1278	itcl::body Rappture::VtkMeshViewer::BuildPolydataTab {} {
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 "Mesh Settings" \
1285	-icon [Rappture::icon mesh]]
1286	$inner configure -borderwidth 4
1287
1288	checkbutton $inner.mesh \
1289	-text "Show Mesh" \
1290	-variable [itcl::scope _settings(-polydatavisible)] \
1291	-command [itcl::code $this AdjustSetting -polydatavisible] \
1292	-font "Arial 9" -anchor w
1293
1294	checkbutton $inner.outline \
1295	-text "Show Outline" \
1296	-variable [itcl::scope _settings(-outline)] \
1297	-command [itcl::code $this AdjustSetting -outline] \
1298	-font "Arial 9" -anchor w
1299
1300	checkbutton $inner.wireframe \
1301	-text "Show Wireframe" \
1302	-variable [itcl::scope _settings(-polydatawireframe)] \
1303	-command [itcl::code $this AdjustSetting -polydatawireframe] \
1304	-font "Arial 9" -anchor w
1305
1306	checkbutton $inner.lighting \
1307	-text "Enable Lighting" \
1308	-variable [itcl::scope _settings(-polydatalighting)] \
1309	-command [itcl::code $this AdjustSetting -polydatalighting] \
1310	-font "Arial 9" -anchor w
1311
1312	checkbutton $inner.edges \
1313	-text "Show Edges" \
1314	-variable [itcl::scope _settings(-polydataedges)] \
1315	-command [itcl::code $this AdjustSetting -polydataedges] \
1316	-font "Arial 9" -anchor w
1317
1318	itk_component add field_l {
1319	label $inner.field_l -text "Field" -font "Arial 9"
1320	} {
1321	ignore -font
1322	}
1323	itk_component add field {
1324	Rappture::Combobox $inner.field -width 10 -editable no
1325	}
1326	bind $inner.field <<Value>> \
1327	[itcl::code $this AdjustSetting -field]
1328
1329	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1330	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1331	-variable [itcl::scope _widget(-polydataopacity)] \
1332	-width 10 \
1333	-showvalue off \
1334	-command [itcl::code $this AdjustSetting -polydataopacity]
1335	$inner.opacity set [expr $_settings(-polydataopacity) * 100.0]
1336
1337	blt::table $inner \
1338	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1339	1,0 $inner.outline -cspan 2 -anchor w -pady 2 \
1340	2,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1341	3,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1342	4,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1343	5,0 $inner.opacity_l -anchor w -pady 2 \
1344	5,1 $inner.opacity -fill x -pady 2
1345
1346	blt::table configure $inner r* c* -resize none
1347	blt::table configure $inner r7 c1 -resize expand
1348	}
1349
1350	itcl::body Rappture::VtkMeshViewer::BuildAxisTab {} {
1351
1352	set fg [option get $itk_component(hull) font Font]
1353	#set bfg [option get $itk_component(hull) boldFont Font]
1354
1355	set inner [$itk_component(main) insert end \
1356	-title "Axis Settings" \
1357	-icon [Rappture::icon axis2]]
1358	$inner configure -borderwidth 4
1359
1360	checkbutton $inner.visible \
1361	-text "Axes" \
1362	-variable [itcl::scope _settings(-axesvisible)] \
1363	-command [itcl::code $this AdjustSetting -axesvisible] \
1364	-font "Arial 9"
1365
1366	checkbutton $inner.labels \
1367	-text "Axis Labels" \
1368	-variable [itcl::scope _settings(-axislabels)] \
1369	-command [itcl::code $this AdjustSetting -axislabels] \
1370	-font "Arial 9"
1371	label $inner.grid_l -text "Grid" -font "Arial 9"
1372	checkbutton $inner.xgrid \
1373	-text "X" \
1374	-variable [itcl::scope _settings(-xgrid)] \
1375	-command [itcl::code $this AdjustSetting -xgrid] \
1376	-font "Arial 9"
1377	checkbutton $inner.ygrid \
1378	-text "Y" \
1379	-variable [itcl::scope _settings(-ygrid)] \
1380	-command [itcl::code $this AdjustSetting -ygrid] \
1381	-font "Arial 9"
1382	checkbutton $inner.zgrid \
1383	-text "Z" \
1384	-variable [itcl::scope _settings(-zgrid)] \
1385	-command [itcl::code $this AdjustSetting -zgrid] \
1386	-font "Arial 9"
1387	checkbutton $inner.minorticks \
1388	-text "Minor Ticks" \
1389	-variable [itcl::scope _settings(-axisminorticks)] \
1390	-command [itcl::code $this AdjustSetting -axisminorticks] \
1391	-font "Arial 9"
1392
1393	label $inner.mode_l -text "Mode" -font "Arial 9"
1394
1395	itk_component add axismode {
1396	Rappture::Combobox $inner.mode -width 10 -editable no
1397	}
1398	$inner.mode choices insert end \
1399	"static_triad" "static" \
1400	"closest_triad" "closest" \
1401	"furthest_triad" "farthest" \
1402	"outer_edges" "outer"
1403	$itk_component(axismode) value "static"
1404	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axismode]
1405
1406	blt::table $inner \
1407	0,0 $inner.visible -anchor w -cspan 4 \
1408	1,0 $inner.labels -anchor w -cspan 4 \
1409	2,0 $inner.minorticks -anchor w -cspan 4 \
1410	4,0 $inner.grid_l -anchor w \
1411	4,1 $inner.xgrid -anchor w \
1412	4,2 $inner.ygrid -anchor w \
1413	4,3 $inner.zgrid -anchor w \
1414	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
1415	5,1 $inner.mode -fill x -cspan 3
1416
1417	blt::table configure $inner r* c* -resize none
1418	blt::table configure $inner r7 c6 -resize expand
1419	blt::table configure $inner r3 -height 0.125i
1420	}
1421
1422	itcl::body Rappture::VtkMeshViewer::BuildCameraTab {} {
1423	set inner [$itk_component(main) insert end \
1424	-title "Camera Settings" \
1425	-icon [Rappture::icon camera]]
1426	$inner configure -borderwidth 4
1427
1428	label $inner.view_l -text "view" -font "Arial 9"
1429	set f [frame $inner.view]
1430	foreach side { front back left right top bottom } {
1431	button $f.$side -image [Rappture::icon view$side] \
1432	-command [itcl::code $this SetOrientation $side]
1433	Rappture::Tooltip::for $f.$side "Change the view to $side"
1434	pack $f.$side -side left
1435	}
1436
1437	blt::table $inner \
1438	0,0 $inner.view_l -anchor e -pady 2 \
1439	0,1 $inner.view -anchor w -pady 2
1440
1441	set labels { qx qy qz qw xpan ypan zoom }
1442	set row 1
1443	foreach tag $labels {
1444	label $inner.${tag}label -text $tag -font "Arial 9"
1445	entry $inner.${tag} -font "Arial 9" -bg white \
1446	-textvariable [itcl::scope _view($tag)]
1447	bind $inner.${tag} <KeyPress-Return> \
1448	[itcl::code $this camera set ${tag}]
1449	blt::table $inner \
1450	$row,0 $inner.${tag}label -anchor e -pady 2 \
1451	$row,1 $inner.${tag} -anchor w -pady 2
1452	blt::table configure $inner r$row -resize none
1453	incr row
1454	}
1455	checkbutton $inner.ortho \
1456	-text "Orthographic Projection" \
1457	-variable [itcl::scope _view(ortho)] \
1458	-command [itcl::code $this camera set ortho] \
1459	-font "Arial 9"
1460	blt::table $inner \
1461	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1462	blt::table configure $inner r$row -resize none
1463	incr row
1464
1465	blt::table configure $inner c* r* -resize none
1466	blt::table configure $inner c2 -resize expand
1467	blt::table configure $inner r$row -resize expand
1468	}
1469
1470	#
1471	# camera --
1472	#
1473	itcl::body Rappture::VtkMeshViewer::camera {option args} {
1474	switch -- $option {
1475	"show" {
1476	puts [array get _view]
1477	}
1478	"set" {
1479	set who [lindex $args 0]
1480	set x $_view($who)
1481	set code [catch { string is double $x } result]
1482	if { $code != 0 \|\| !$result } {
1483	return
1484	}
1485	switch -- $who {
1486	"ortho" {
1487	if {$_view(ortho)} {
1488	SendCmd "camera mode ortho"
1489	} else {
1490	SendCmd "camera mode persp"
1491	}
1492	}
1493	"xpan" - "ypan" {
1494	PanCamera
1495	}
1496	"qx" - "qy" - "qz" - "qw" {
1497	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1498	$_arcball quaternion $q
1499	EventuallyRotate $q
1500	}
1501	"zoom" {
1502	SendCmd "camera zoom $_view(zoom)"
1503	}
1504	}
1505	}
1506	}
1507	}
1508
1509	itcl::body Rappture::VtkMeshViewer::GetVtkData { args } {
1510	set bytes ""
1511	foreach dataobj [get] {
1512	set contents [$dataobj vtkdata -full]
1513	append bytes "$contents\n"
1514	}
1515	return [list .vtk $bytes]
1516	}
1517
1518	itcl::body Rappture::VtkMeshViewer::GetImage { args } {
1519	if { [image width $_image(download)] > 0 &&
1520	[image height $_image(download)] > 0 } {
1521	set bytes [$_image(download) data -format "jpeg -quality 100"]
1522	set bytes [Rappture::encoding::decode -as b64 $bytes]
1523	return [list .jpg $bytes]
1524	}
1525	return ""
1526	}
1527
1528	itcl::body Rappture::VtkMeshViewer::BuildDownloadPopup { popup command } {
1529	Rappture::Balloon $popup \
1530	-title "[Rappture::filexfer::label downloadWord] as..."
1531	set inner [$popup component inner]
1532	label $inner.summary -text "" -anchor w
1533	radiobutton $inner.vtk_button -text "VTK data file" \
1534	-variable [itcl::scope _downloadPopup(format)] \
1535	-font "Helvetica 9 " \
1536	-value vtk
1537	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
1538	radiobutton $inner.image_button -text "Image File" \
1539	-variable [itcl::scope _downloadPopup(format)] \
1540	-value image
1541	Rappture::Tooltip::for $inner.image_button \
1542	"Save as digital image."
1543
1544	button $inner.ok -text "Save" \
1545	-highlightthickness 0 -pady 2 -padx 3 \
1546	-command $command \
1547	-compound left \
1548	-image [Rappture::icon download]
1549
1550	button $inner.cancel -text "Cancel" \
1551	-highlightthickness 0 -pady 2 -padx 3 \
1552	-command [list $popup deactivate] \
1553	-compound left \
1554	-image [Rappture::icon cancel]
1555
1556	blt::table $inner \
1557	0,0 $inner.summary -cspan 2 \
1558	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
1559	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
1560	4,1 $inner.cancel -width .9i -fill y \
1561	4,0 $inner.ok -padx 2 -width .9i -fill y
1562	blt::table configure $inner r3 -height 4
1563	blt::table configure $inner r4 -pady 4
1564	raise $inner.image_button
1565	$inner.vtk_button invoke
1566	return $inner
1567	}
1568
1569	itcl::body Rappture::VtkMeshViewer::SetObjectStyle { dataobj } {
1570	# Parse style string.
1571	set tag $dataobj
1572	set type [$dataobj type]
1573
1574	array set style {
1575	-cloudstyle mesh
1576	-color white
1577	-edgecolor black
1578	-edges 1
1579	-lighting 1
1580	-linewidth 1.0
1581	-opacity 1.0
1582	-outline 0
1583	-visible 1
1584	-wireframe 0
1585	}
1586	if { $dataobj != $_first } {
1587	set style(-wireframe) 1
1588	}
1589	if {$type == "cloud"} {
1590	set style(-cloudstyle) points
1591	set style(-edges) 0
1592	set style(-edgecolor) white
1593	}
1594	array set style [$dataobj hints style]
1595
1596	if {[$dataobj hints color] != ""} {
1597	set style(-color) [$dataobj hints color]
1598	}
1599	SendCmd "outline add $tag"
1600	SendCmd "outline color [Color2RGB $style(-color)] $tag"
1601	SendCmd "outline visible $style(-outline) $tag"
1602	set _settings(-outline) $style(-outline)
1603
1604	SendCmd "polydata add $tag"
1605	SendCmd "polydata visible $style(-visible) $tag"
1606	set _settings(-polydatavisible) $style(-visible)
1607	SendCmd "polydata cloudstyle $style(-cloudstyle) $tag"
1608	SendCmd "polydata edges $style(-edges) $tag"
1609	set _settings(-polydataedges) $style(-edges)
1610	SendCmd "polydata color [Color2RGB $style(-color)] $tag"
1611	SendCmd "polydata lighting $style(-lighting) $tag"
1612	set _settings(-polydatalighting) $style(-lighting)
1613	SendCmd "polydata linecolor [Color2RGB $style(-edgecolor)] $tag"
1614	SendCmd "polydata linewidth $style(-linewidth) $tag"
1615	SendCmd "polydata opacity $style(-opacity) $tag"
1616	set _settings(-polydataopacity) $style(-opacity)
1617	set _widget(-polydataopacity) [expr 100.0 * $style(-opacity)]
1618	SendCmd "polydata wireframe $style(-wireframe) $tag"
1619	set _settings(-polydatawireframe) $style(-wireframe)
1620	set havePolyData 1
1621	}
1622
1623	itcl::body Rappture::VtkMeshViewer::IsValidObject { dataobj } {
1624	if {[catch {$dataobj isa Rappture::Mesh} valid] != 0 \|\| !$valid} {
1625	return 0
1626	}
1627	return 1
1628	}
1629
1630	itcl::body Rappture::VtkMeshViewer::SetOrientation { side } {
1631	array set positions {
1632	front "1 0 0 0"
1633	back "0 0 1 0"
1634	left "0.707107 0 -0.707107 0"
1635	right "0.707107 0 0.707107 0"
1636	top "0.707107 -0.707107 0 0"
1637	bottom "0.707107 0.707107 0 0"
1638	}
1639	foreach name { qw qx qy qz } value $positions($side) {
1640	set _view($name) $value
1641	}
1642	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1643	$_arcball quaternion $q
1644	SendCmd "camera orient $q"
1645	SendCmd "camera reset"
1646	set _view(xpan) 0
1647	set _view(ypan) 0
1648	set _view(zoom) 1.0
1649	}

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