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source: trunk/gui/scripts/vtkviewer.tcl @ 3394

Last change on this file since 3394 was 3394, checked in by gah, 11 years ago
fix up stats reporting in servers
File size: 83.1 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2
3	# ----------------------------------------------------------------------
4	# COMPONENT: vtkviewer - Vtk drawing object viewer
5	#
6	# It connects to the Vtk server running on a rendering farm,
7	# transmits data, and displays the results.
8	# ======================================================================
9	# AUTHOR: Michael McLennan, Purdue University
10	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
11	#
12	# See the file "license.terms" for information on usage and
13	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14	# ======================================================================
15	package require Itk
16	package require BLT
17	#package require Img
18
19	option add *VtkViewer.width 4i widgetDefault
20	option add VtkViewercursor crosshair widgetDefault
21	option add *VtkViewer.height 4i widgetDefault
22	option add *VtkViewer.foreground black widgetDefault
23	option add *VtkViewer.controlBackground gray widgetDefault
24	option add *VtkViewer.controlDarkBackground #999999 widgetDefault
25	option add *VtkViewer.plotBackground black widgetDefault
26	option add *VtkViewer.plotForeground white widgetDefault
27	option add *VtkViewer.font \
28	--helvetica-medium-r-normal--12-* widgetDefault
29
30	# must use this name -- plugs into Rappture::resources::load
31	proc VtkViewer_init_resources {} {
32	Rappture::resources::register \
33	vtkvis_server Rappture::VtkViewer::SetServerList
34	}
35
36	itcl::class Rappture::VtkViewer {
37	inherit Rappture::VisViewer
38
39	itk_option define -plotforeground plotForeground Foreground ""
40	itk_option define -plotbackground plotBackground Background ""
41
42	constructor { hostlist args } {
43	Rappture::VisViewer::constructor $hostlist
44	} {
45	# defined below
46	}
47	destructor {
48	# defined below
49	}
50	public proc SetServerList { namelist } {
51	Rappture::VisViewer::SetServerList "vtkvis" $namelist
52	}
53	public method add {dataobj {settings ""}}
54	public method camera {option args}
55	public method delete {args}
56	public method disconnect {}
57	public method download {option args}
58	public method get {args}
59	public method isconnected {}
60	public method limits { colormap }
61	public method sendto { string }
62	public method parameters {title args} {
63	# do nothing
64	}
65	public method scale {args}
66
67	protected method Connect {}
68	protected method CurrentDatasets {args}
69	protected method Disconnect {}
70	protected method DoResize {}
71	protected method DoRotate {}
72	protected method AdjustSetting {what {value ""}}
73	protected method FixSettings { args }
74	protected method Pan {option x y}
75	protected method Pick {x y}
76	protected method Rebuild {}
77	protected method ReceiveDataset { args }
78	protected method ReceiveImage { args }
79	protected method ReceiveLegend { colormap title vmin vmax size }
80	protected method Rotate {option x y}
81	protected method SendCmd {string}
82	protected method Zoom {option}
83
84	# The following methods are only used by this class.
85	private method BuildAxisTab {}
86	private method BuildCameraTab {}
87	private method BuildColormap { name styles }
88	private method BuildCutawayTab {}
89	private method BuildDownloadPopup { widget command }
90	private method BuildMeshTab {}
91	private method BuildMoleculeTab {}
92	private method ConvertToVtkData { dataobj comp }
93	private method DrawLegend {}
94	private method EnterLegend { x y }
95	private method EventuallyResize { w h }
96	private method EventuallyRotate { q }
97	private method GetImage { args }
98	private method GetVtkData { args }
99	private method IsValidObject { dataobj }
100	private method LeaveLegend {}
101	private method MotionLegend { x y }
102	private method PanCamera {}
103	private method RequestLegend {}
104	private method SetColormap { dataobj comp }
105	private method ChangeColormap { dataobj comp color }
106	private method SetLegendTip { x y }
107	private method SetObjectStyle { dataobj comp }
108	private method Slice {option args}
109
110	private variable _arcball ""
111	private variable _outbuf; # buffer for outgoing commands
112
113	private variable _dlist ""; # list of data objects
114	private variable _allDataObjs
115	private variable _obj2datasets
116	private variable _obj2ovride; # maps dataobj => style override
117	private variable _datasets; # contains all the dataobj-component
118	# datasets in the server
119	private variable _colormaps; # contains all the colormaps
120	# in the server.
121	private variable _dataset2style; # maps dataobj-component to transfunc
122	private variable _style2datasets; # maps tf back to list of
123	# dataobj-components using the tf.
124	private variable _click ; # info used for rotate operations
125	private variable _limits ; # autoscale min/max for all axes
126	private variable _view ; # view params for 3D view
127	private variable _settings
128	private variable _style; # Array of current component styles.
129	private variable _initialStyle; # Array of initial component styles.
130	private variable _axis
131	private variable _reset 1 ;# indicates if camera needs to be reset
132	# to starting position.
133	private variable _haveGlyphs 0
134	private variable _haveMolecules 0
135
136	private variable _first "" ;# This is the topmost dataset.
137	private variable _start 0
138	private variable _buffering 0
139	private variable _title ""
140
141	common _downloadPopup ;# download options from popup
142	private common _hardcopy
143	private variable _width 0
144	private variable _height 0
145	private variable _resizePending 0
146	private variable _rotatePending 0
147	private variable _updatePending 0;
148	private variable _outline
149	}
150
151	itk::usual VtkViewer {
152	keep -background -foreground -cursor -font
153	keep -plotbackground -plotforeground
154	}
155
156	# ----------------------------------------------------------------------
157	# CONSTRUCTOR
158	# ----------------------------------------------------------------------
159	itcl::body Rappture::VtkViewer::constructor {hostlist args} {
160	package require vtk
161	set _serverType "vtkvis"
162
163	# Rebuild event
164	$_dispatcher register !rebuild
165	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
166
167	# Resize event
168	$_dispatcher register !resize
169	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
170
171	# Update state event
172	$_dispatcher register !update
173	$_dispatcher dispatch $this !update "[itcl::code $this DoUpdate]; list"
174
175	# Rotate event
176	$_dispatcher register !rotate
177	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
178
179	set _outbuf ""
180
181	#
182	# Populate parser with commands handle incoming requests
183	#
184	$_parser alias image [itcl::code $this ReceiveImage]
185	$_parser alias dataset [itcl::code $this ReceiveDataset]
186	$_parser alias legend [itcl::code $this ReceiveLegend]
187	$_parser alias viserror [itcl::code $this ReceiveError]
188
189	array set _outline {
190	id -1
191	afterId -1
192	x1 -1
193	y1 -1
194	x2 -1
195	y2 -1
196	}
197	# Initialize the view to some default parameters.
198	array set _view {
199	qw 0.853553
200	qx -0.353553
201	qy 0.353553
202	qz 0.146447
203	zoom 1.0
204	xpan 0
205	ypan 0
206	ortho 0
207	}
208	set _arcball [blt::arcball create 100 100]
209	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
210	$_arcball quaternion $q
211
212	set _limits(zmin) 0.0
213	set _limits(zmax) 1.0
214
215	array set _axis [subst {
216	xgrid 0
217	ygrid 0
218	zgrid 0
219	xcutaway 0
220	ycutaway 0
221	zcutaway 0
222	xposition 0
223	yposition 0
224	zposition 0
225	xdirection -1
226	ydirection -1
227	zdirection -1
228	visible 1
229	labels 1
230	}]
231	array set _settings [subst {
232	legend 1
233	molecule-representation "Ball and Stick"
234	molecule-edges 0
235	molecule-labels 0
236	molecule-lighting 1
237	molecule-opacity 100
238	molecule-visible 1
239	molecule-wireframe 0
240	molecule-palette elementDefault
241	mesh-edges 0
242	mesh-lighting 1
243	mesh-opacity 40
244	mesh-visible 1
245	mesh-wireframe 0
246	mesh-palette rainbow
247	}]
248
249	itk_component add view {
250	canvas $itk_component(plotarea).view \
251	-highlightthickness 0 -borderwidth 0
252	} {
253	usual
254	ignore -highlightthickness -borderwidth -background
255	}
256
257	set c $itk_component(view)
258	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
259	bind $c <4> [itcl::code $this Zoom in 0.25]
260	bind $c <5> [itcl::code $this Zoom out 0.25]
261	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
262	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
263	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
264	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
265	bind $c <Enter> "focus %W"
266	bind $c <Control-F1> [itcl::code $this ToggleConsole]
267
268	# Fix the scrollregion in case we go off screen
269	$c configure -scrollregion [$c bbox all]
270
271	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
272	set _map(cwidth) -1
273	set _map(cheight) -1
274	set _map(zoom) 1.0
275	set _map(original) ""
276
277	set f [$itk_component(main) component controls]
278	itk_component add reset {
279	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
280	-highlightthickness 0 \
281	-image [Rappture::icon reset-view] \
282	-command [itcl::code $this Zoom reset]
283	} {
284	usual
285	ignore -highlightthickness
286	}
287	pack $itk_component(reset) -side top -padx 2 -pady 2
288	Rappture::Tooltip::for $itk_component(reset) \
289	"Reset the view to the default zoom level"
290
291	itk_component add zoomin {
292	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
293	-highlightthickness 0 \
294	-image [Rappture::icon zoom-in] \
295	-command [itcl::code $this Zoom in]
296	} {
297	usual
298	ignore -highlightthickness
299	}
300	pack $itk_component(zoomin) -side top -padx 2 -pady 2
301	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
302
303	itk_component add zoomout {
304	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
305	-highlightthickness 0 \
306	-image [Rappture::icon zoom-out] \
307	-command [itcl::code $this Zoom out]
308	} {
309	usual
310	ignore -highlightthickness
311	}
312	pack $itk_component(zoomout) -side top -padx 2 -pady 2
313	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
314
315	puts stderr "BuildMeshTab"
316	if { [catch { BuildMeshTab } errs ] != 0 } {
317	puts stderr "errs=$errs"
318	}
319	puts stderr "BuildMoleculeTab"
320	if { [catch { BuildMoleculeTab } errs ] != 0 } {
321	global errorInfo
322	puts stderr "errs=$errs\nerrorInfo=$errorInfo"
323	}
324	BuildAxisTab
325	#BuildCutawayTab
326	BuildCameraTab
327
328	# Legend
329
330	set _image(legend) [image create photo]
331	itk_component add legend {
332	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
333	} {
334	usual
335	ignore -highlightthickness
336	rename -background -plotbackground plotBackground Background
337	}
338
339	# Hack around the Tk panewindow. The problem is that the requested
340	# size of the 3d view isn't set until an image is retrieved from
341	# the server. So the panewindow uses the tiny size.
342	set w 10000
343	pack forget $itk_component(view)
344	blt::table $itk_component(plotarea) \
345	0,0 $itk_component(view) -fill both -reqwidth $w
346	blt::table configure $itk_component(plotarea) c1 -resize none
347
348	# Bindings for rotation via mouse
349	bind $itk_component(view) <ButtonPress-1> \
350	[itcl::code $this Rotate click %x %y]
351	bind $itk_component(view) <B1-Motion> \
352	[itcl::code $this Rotate drag %x %y]
353	bind $itk_component(view) <ButtonRelease-1> \
354	[itcl::code $this Rotate release %x %y]
355	bind $itk_component(view) <Configure> \
356	[itcl::code $this EventuallyResize %w %h]
357
358	if 0 {
359	bind $itk_component(view) <Configure> \
360	[itcl::code $this EventuallyResize %w %h]
361	}
362	# Bindings for panning via mouse
363	bind $itk_component(view) <ButtonPress-2> \
364	[itcl::code $this Pan click %x %y]
365	bind $itk_component(view) <B2-Motion> \
366	[itcl::code $this Pan drag %x %y]
367	bind $itk_component(view) <ButtonRelease-2> \
368	[itcl::code $this Pan release %x %y]
369
370	bind $itk_component(view) <ButtonRelease-3> \
371	[itcl::code $this Pick %x %y]
372
373	# Bindings for panning via keyboard
374	bind $itk_component(view) <KeyPress-Left> \
375	[itcl::code $this Pan set -10 0]
376	bind $itk_component(view) <KeyPress-Right> \
377	[itcl::code $this Pan set 10 0]
378	bind $itk_component(view) <KeyPress-Up> \
379	[itcl::code $this Pan set 0 -10]
380	bind $itk_component(view) <KeyPress-Down> \
381	[itcl::code $this Pan set 0 10]
382	bind $itk_component(view) <Shift-KeyPress-Left> \
383	[itcl::code $this Pan set -2 0]
384	bind $itk_component(view) <Shift-KeyPress-Right> \
385	[itcl::code $this Pan set 2 0]
386	bind $itk_component(view) <Shift-KeyPress-Up> \
387	[itcl::code $this Pan set 0 -2]
388	bind $itk_component(view) <Shift-KeyPress-Down> \
389	[itcl::code $this Pan set 0 2]
390
391	# Bindings for zoom via keyboard
392	bind $itk_component(view) <KeyPress-Prior> \
393	[itcl::code $this Zoom out]
394	bind $itk_component(view) <KeyPress-Next> \
395	[itcl::code $this Zoom in]
396
397	bind $itk_component(view) <Enter> "focus $itk_component(view)"
398
399	if {[string equal "x11" [tk windowingsystem]]} {
400	# Bindings for zoom via mouse
401	bind $itk_component(view) <4> [itcl::code $this Zoom out]
402	bind $itk_component(view) <5> [itcl::code $this Zoom in]
403	}
404
405	set _image(download) [image create photo]
406
407	eval itk_initialize $args
408	Connect
409	}
410
411	# ----------------------------------------------------------------------
412	# DESTRUCTOR
413	# ----------------------------------------------------------------------
414	itcl::body Rappture::VtkViewer::destructor {} {
415	Disconnect
416	$_dispatcher cancel !rebuild
417	$_dispatcher cancel !resize
418	$_dispatcher cancel !rotate
419	image delete $_image(plot)
420	image delete $_image(download)
421	catch { blt::arcball destroy $_arcball }
422	}
423
424	itcl::body Rappture::VtkViewer::DoResize {} {
425	if { $_width < 2 } {
426	set _width 500
427	}
428	if { $_height < 2 } {
429	set _height 500
430	}
431	set _start [clock clicks -milliseconds]
432	SendCmd "screen size $_width $_height"
433	#SendCmd "imgflush"
434
435	# Must reset camera to have object scaling to take effect.
436	#SendCmd "camera reset"
437	#SendCmd "camera zoom $_view(zoom)"
438	set _resizePending 0
439	}
440
441	itcl::body Rappture::VtkViewer::DoRotate {} {
442	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
443	SendCmd "camera orient $q"
444	set _rotatePending 0
445	}
446
447	itcl::body Rappture::VtkViewer::EventuallyResize { w h } {
448	set _width $w
449	set _height $h
450	$_arcball resize $w $h
451	if { !$_resizePending } {
452	set _resizePending 1
453	$_dispatcher event -after 200 !resize
454	}
455	}
456
457	set rotate_delay 150
458
459	itcl::body Rappture::VtkViewer::EventuallyRotate { q } {
460	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
461	if { !$_rotatePending } {
462	set _rotatePending 1
463	global rotate_delay
464	$_dispatcher event -after $rotate_delay !rotate
465	}
466	}
467
468	# ----------------------------------------------------------------------
469	# USAGE: add <dataobj> ?<settings>?
470	#
471	# Clients use this to add a data object to the plot. The optional
472	# <settings> are used to configure the plot. Allowed settings are
473	# -color, -brightness, -width, -linestyle, and -raise.
474	# ----------------------------------------------------------------------
475	itcl::body Rappture::VtkViewer::add {dataobj {settings ""}} {
476	array set params {
477	-color auto
478	-width 1
479	-linestyle solid
480	-brightness 0
481	-raise 0
482	-description ""
483	-param ""
484	-type ""
485	}
486	array set params $settings
487	set params(-description) ""
488	set params(-param) ""
489	foreach {opt val} $settings {
490	if {![info exists params($opt)]} {
491	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
492	}
493	set params($opt) $val
494	}
495	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
496	# can't handle -autocolors yet
497	set params(-color) black
498	}
499	set pos [lsearch -exact $dataobj $_dlist]
500	if {$pos < 0} {
501	lappend _dlist $dataobj
502	}
503	set _allDataObjs($dataobj) 1
504	set _obj2ovride($dataobj-color) $params(-color)
505	set _obj2ovride($dataobj-width) $params(-width)
506	set _obj2ovride($dataobj-raise) $params(-raise)
507	$_dispatcher event -idle !rebuild
508	}
509
510
511	# ----------------------------------------------------------------------
512	# USAGE: delete ?<dataobj1> <dataobj2> ...?
513	#
514	# Clients use this to delete a dataobj from the plot. If no dataobjs
515	# are specified, then all dataobjs are deleted. No data objects are
516	# deleted. They are only removed from the display list.
517	#
518	# ----------------------------------------------------------------------
519	itcl::body Rappture::VtkViewer::delete {args} {
520	if { [llength $args] == 0} {
521	set args $_dlist
522	}
523	# Delete all specified dataobjs
524	set changed 0
525	foreach dataobj $args {
526	set pos [lsearch -exact $_dlist $dataobj]
527	if { $pos < 0 } {
528	continue; # Don't know anything about it.
529	}
530	# Remove it from the dataobj list.
531	set _dlist [lreplace $_dlist $pos $pos]
532	foreach comp [$dataobj components] {
533	SendCmd "dataset visible 0 $dataobj-$comp"
534	}
535	array unset _obj2ovride $dataobj-*
536	# Append to the end of the dataobj list.
537	lappend _dlist $dataobj
538	set changed 1
539	}
540	# If anything changed, then rebuild the plot
541	if { $changed } {
542	$_dispatcher event -idle !rebuild
543	}
544	}
545
546	# ----------------------------------------------------------------------
547	# USAGE: get ?-objects?
548	# USAGE: get ?-visible?
549	# USAGE: get ?-image view?
550	#
551	# Clients use this to query the list of objects being plotted, in
552	# order from bottom to top of this result. The optional "-image"
553	# flag can also request the internal images being shown.
554	# ----------------------------------------------------------------------
555	itcl::body Rappture::VtkViewer::get {args} {
556	if {[llength $args] == 0} {
557	set args "-objects"
558	}
559
560	set op [lindex $args 0]
561	switch -- $op {
562	"-objects" {
563	# put the dataobj list in order according to -raise options
564	set dlist {}
565	foreach dataobj $_dlist {
566	if { ![IsValidObject $dataobj] } {
567	continue
568	}
569	if {[info exists _obj2ovride($dataobj-raise)] &&
570	$_obj2ovride($dataobj-raise)} {
571	set dlist [linsert $dlist 0 $dataobj]
572	} else {
573	lappend dlist $dataobj
574	}
575	}
576	return $dlist
577	}
578	"-visible" {
579	set dlist {}
580	foreach dataobj $_dlist {
581	if { ![IsValidObject $dataobj] } {
582	continue
583	}
584	if { ![info exists _obj2ovride($dataobj-raise)] } {
585	# No setting indicates that the object isn't invisible.
586	continue
587	}
588	# Otherwise use the -raise parameter to put the object to
589	# the front of the list.
590	if { $_obj2ovride($dataobj-raise) } {
591	set dlist [linsert $dlist 0 $dataobj]
592	} else {
593	lappend dlist $dataobj
594	}
595	}
596	return $dlist
597	}
598	-image {
599	if {[llength $args] != 2} {
600	error "wrong # args: should be \"get -image view\""
601	}
602	switch -- [lindex $args end] {
603	view {
604	return $_image(plot)
605	}
606	default {
607	error "bad image name \"[lindex $args end]\": should be view"
608	}
609	}
610	}
611	default {
612	error "bad option \"$op\": should be -objects or -image"
613	}
614	}
615	}
616
617	# ----------------------------------------------------------------------
618	# USAGE: scale ?<data1> <data2> ...?
619	#
620	# Sets the default limits for the overall plot according to the
621	# limits of the data for all of the given <data> objects. This
622	# accounts for all objects--even those not showing on the screen.
623	# Because of this, the limits are appropriate for all objects as
624	# the user scans through data in the ResultSet viewer.
625	# ----------------------------------------------------------------------
626	itcl::body Rappture::VtkViewer::scale {args} {
627	array unset _limits
628	foreach dataobj $args {
629	array set bounds [limits $dataobj]
630	if {![info exists _limits(xmin)] \|\| $_limits(xmin) > $bounds(xmin)} {
631	set _limits(xmin) $bounds(xmin)
632	}
633	if {![info exists _limits(xmax)] \|\| $_limits(xmax) < $bounds(xmax)} {
634	set _limits(xmax) $bounds(xmax)
635	}
636
637	if {![info exists _limits(ymin)] \|\| $_limits(ymin) > $bounds(ymin)} {
638	set _limits(ymin) $bounds(ymin)
639	}
640	if {![info exists _limits(ymax)] \|\| $_limits(ymax) < $bounds(ymax)} {
641	set _limits(ymax) $bounds(ymax)
642	}
643
644	if {![info exists _limits(zmin)] \|\| $_limits(zmin) > $bounds(zmin)} {
645	set _limits(zmin) $bounds(zmin)
646	}
647	if {![info exists _limits(zmax)] \|\| $_limits(zmax) < $bounds(zmax)} {
648	set _limits(zmax) $bounds(zmax)
649	}
650	}
651	}
652
653	# ----------------------------------------------------------------------
654	# USAGE: download coming
655	# USAGE: download controls <downloadCommand>
656	# USAGE: download now
657	#
658	# Clients use this method to create a downloadable representation
659	# of the plot. Returns a list of the form {ext string}, where
660	# "ext" is the file extension (indicating the type of data) and
661	# "string" is the data itself.
662	# ----------------------------------------------------------------------
663	itcl::body Rappture::VtkViewer::download {option args} {
664	switch $option {
665	coming {
666	if {[catch {
667	blt::winop snap $itk_component(plotarea) $_image(download)
668	}]} {
669	$_image(download) configure -width 1 -height 1
670	$_image(download) put #000000
671	}
672	}
673	controls {
674	set popup .vtkviewerdownload
675	if { ![winfo exists .vtkviewerdownload] } {
676	set inner [BuildDownloadPopup $popup [lindex $args 0]]
677	} else {
678	set inner [$popup component inner]
679	}
680	set _downloadPopup(image_controls) $inner.image_frame
681	set num [llength [get]]
682	set num [expr {($num == 1) ? "1 result" : "$num results"}]
683	set word [Rappture::filexfer::label downloadWord]
684	$inner.summary configure -text "$word $num in the following format:"
685	update idletasks ;# Fix initial sizes
686	return $popup
687	}
688	now {
689	set popup .vtkviewerdownload
690	if {[winfo exists .vtkviewerdownload]} {
691	$popup deactivate
692	}
693	switch -- $_downloadPopup(format) {
694	"image" {
695	return [$this GetImage [lindex $args 0]]
696	}
697	"vtk" {
698	return [$this GetVtkData [lindex $args 0]]
699	}
700	}
701	return ""
702	}
703	default {
704	error "bad option \"$option\": should be coming, controls, now"
705	}
706	}
707	}
708
709	# ----------------------------------------------------------------------
710	# USAGE: Connect ?<host:port>,<host:port>...?
711	#
712	# Clients use this method to establish a connection to a new
713	# server, or to reestablish a connection to the previous server.
714	# Any existing connection is automatically closed.
715	# ----------------------------------------------------------------------
716	itcl::body Rappture::VtkViewer::Connect {} {
717	set _hosts [GetServerList "vtkvis"]
718	if { "" == $_hosts } {
719	return 0
720	}
721	set result [VisViewer::Connect $_hosts]
722	if { $result } {
723	set w [winfo width $itk_component(view)]
724	set h [winfo height $itk_component(view)]
725	EventuallyResize $w $h
726	}
727	return $result
728	}
729
730	#
731	# isconnected --
732	#
733	# Indicates if we are currently connected to the visualization server.
734	#
735	itcl::body Rappture::VtkViewer::isconnected {} {
736	return [VisViewer::IsConnected]
737	}
738
739	#
740	# disconnect --
741	#
742	itcl::body Rappture::VtkViewer::disconnect {} {
743	Disconnect
744	set _reset 1
745	}
746
747	#
748	# Disconnect --
749	#
750	# Clients use this method to disconnect from the current rendering
751	# server.
752	#
753	itcl::body Rappture::VtkViewer::Disconnect {} {
754	VisViewer::Disconnect
755
756	# disconnected -- no more data sitting on server
757	set _outbuf ""
758	array unset _datasets
759	array unset _data
760	array unset _colormaps
761	}
762
763	#
764	# sendto --
765	#
766	itcl::body Rappture::VtkViewer::sendto { bytes } {
767	SendBytes "$bytes\n"
768	}
769
770	#
771	# SendCmd
772	#
773	# Send commands off to the rendering server. If we're currently
774	# sending data objects to the server, buffer the commands to be
775	# sent later.
776	#
777	itcl::body Rappture::VtkViewer::SendCmd {string} {
778	if { $_buffering } {
779	append _outbuf $string "\n"
780	} else {
781	SendBytes "$string\n"
782	}
783	}
784
785	# ----------------------------------------------------------------------
786	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
787	#
788	# Invoked automatically whenever the "image" command comes in from
789	# the rendering server. Indicates that binary image data with the
790	# specified <size> will follow.
791	# ----------------------------------------------------------------------
792	itcl::body Rappture::VtkViewer::ReceiveImage { args } {
793	array set info {
794	-token "???"
795	-bytes 0
796	-type image
797	}
798	array set info $args
799	set bytes [ReceiveBytes $info(-bytes)]
800	if { $info(-type) == "image" } {
801	if 0 {
802	set f [open "last.ppm" "w"]
803	puts $f $bytes
804	close $f
805	}
806	$_image(plot) configure -data $bytes
807	set time [clock seconds]
808	set date [clock format $time]
809	if { $_start > 0 } {
810	set finish [clock clicks -milliseconds]
811	set _start 0
812	}
813	} elseif { $info(type) == "print" } {
814	set tag $this-print-$info(-token)
815	set _hardcopy($tag) $bytes
816	}
817	}
818
819	#
820	# ReceiveDataset --
821	#
822	itcl::body Rappture::VtkViewer::ReceiveDataset { args } {
823	if { ![isconnected] } {
824	return
825	}
826	set option [lindex $args 0]
827	switch -- $option {
828	"scalar" {
829	set option [lindex $args 1]
830	switch -- $option {
831	"world" {
832	foreach { x y z value tag } [lrange $args 2 end] break
833	}
834	"pixel" {
835	foreach { x y value tag } [lrange $args 2 end] break
836	}
837	}
838	}
839	"vector" {
840	set option [lindex $args 1]
841	switch -- $option {
842	"world" {
843	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
844	}
845	"pixel" {
846	foreach { x y vx vy vz tag } [lrange $args 2 end] break
847	}
848	}
849	}
850	"names" {
851	foreach { name } [lindex $args 1] {
852	#puts stderr "Dataset: $name"
853	}
854	}
855	default {
856	error "unknown dataset option \"$option\" from server"
857	}
858	}
859	}
860
861	# ----------------------------------------------------------------------
862	# USAGE: Rebuild
863	#
864	# Called automatically whenever something changes that affects the
865	# data in the widget. Clears any existing data and rebuilds the
866	# widget to display new data.
867	# ----------------------------------------------------------------------
868	itcl::body Rappture::VtkViewer::Rebuild {} {
869
870	set w [winfo width $itk_component(view)]
871	set h [winfo height $itk_component(view)]
872	if { $w < 2 \|\| $h < 2 } {
873	$_dispatcher event -idle !rebuild
874	return
875	}
876
877	# Turn on buffering of commands to the server. We don't want to
878	# be preempted by a server disconnect/reconnect (which automatically
879	# generates a new call to Rebuild).
880	set _buffering 1
881
882	if { $_reset } {
883	if 1 {
884	# Tell the server the name of the tool, the version, and dataset
885	# that we are rendering. Have to do it here because we don't know
886	# what data objects are using the renderer until be get here.
887	global env
888
889	set info {}
890	set user "???"
891	if { [info exists env(USER)] } {
892	set user $env(USER)
893	}
894	set session "???"
895	if { [info exists env(SESSION)] } {
896	set session $env(SESSION)
897	}
898	lappend info "hub" [exec hostname]
899	lappend info "client" "vtkviewer"
900	lappend info "user" $user
901	lappend info "session" $session
902	SendCmd "clientinfo [list $info]"
903	}
904
905	set _width $w
906	set _height $h
907	$_arcball resize $w $h
908	DoResize
909	#
910	# Reset the camera and other view parameters
911	#
912	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
913	$_arcball quaternion $q
914	if {$_view(ortho)} {
915	SendCmd "camera mode ortho"
916	} else {
917	SendCmd "camera mode persp"
918	}
919
920	DoRotate
921	PanCamera
922	Zoom reset
923	FixSettings axis-xgrid axis-ygrid axis-zgrid axis-mode \
924	axis-visible axis-labels \
925	mesh-edges mesh-lighting mesh-opacity mesh-visible \
926	mesh-wireframe
927	}
928	set _first [lindex [get -objects] 0]
929
930	#SendCmd "imgflush"
931
932	set _limits(zmin) ""
933	set _limits(zmax) ""
934	set _first ""
935	foreach dataobj [get -objects] {
936	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
937	set _first $dataobj
938	}
939	set _obj2datasets($dataobj) ""
940	foreach comp [$dataobj components] {
941	set tag $dataobj-$comp
942	if { ![info exists _datasets($tag)] } {
943	set bytes [$dataobj data $comp]
944	if { $bytes == "" } {
945	continue
946	}
947	set length [string length $bytes]
948	if 1 {
949	set info {}
950	lappend info "tool_id" [$dataobj hints toolId]
951	lappend info "tool_name" [$dataobj hints toolName]
952	lappend info "tool_version" [$dataobj hints toolRevision]
953	lappend info "tool_title" [$dataobj hints toolTitle]
954	lappend info "dataset_label" [$dataobj hints label]
955	lappend info "dataset_size" $length
956	lappend info "dataset_tag" $tag
957	SendCmd [list "clientinfo" $info]
958	}
959	append _outbuf "dataset add $tag data follows $length\n"
960	append _outbuf $bytes
961	set _datasets($tag) 1
962	}
963	lappend _obj2datasets($dataobj) $tag
964	if { [info exists _obj2ovride($dataobj-raise)] } {
965	SendCmd "dataset visible 1 $tag"
966	} else {
967	SendCmd "dataset visible 0 $tag"
968	}
969	SetObjectStyle $dataobj $comp
970	}
971	}
972	if {"" != $_first} {
973	set location [$_first hints camera]
974	if { $location != "" } {
975	array set view $location
976	}
977
978	foreach axis { x y z } {
979	set label [$_first hints ${axis}label]
980	if { $label != "" } {
981	SendCmd "axis name $axis $label"
982	}
983	set units [$_first hints ${axis}units]
984	if { $units != "" } {
985	SendCmd "axis units $axis $units"
986	}
987	}
988	}
989	FixSettings molecule-representation
990
991	SendCmd "dataset maprange visible"
992
993	set _buffering 0; # Turn off buffering.
994	set _reset 0
995
996	# Actually write the commands to the server socket. If it fails, we don't
997	# care. We're finished here.
998	blt::busy hold $itk_component(hull)
999	SendBytes $_outbuf;
1000	blt::busy release $itk_component(hull)
1001	set _outbuf ""; # Clear the buffer.
1002	}
1003
1004	# ----------------------------------------------------------------------
1005	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1006	#
1007	# Returns a list of server IDs for the current datasets being displayed. This
1008	# is normally a single ID, but it might be a list of IDs if the current data
1009	# object has multiple components.
1010	# ----------------------------------------------------------------------
1011	itcl::body Rappture::VtkViewer::CurrentDatasets {args} {
1012	set flag [lindex $args 0]
1013	switch -- $flag {
1014	"-all" {
1015	if { [llength $args] > 1 } {
1016	error "CurrentDatasets: can't specify dataobj after \"-all\""
1017	}
1018	set dlist [get -objects]
1019	}
1020	"-visible" {
1021	if { [llength $args] > 1 } {
1022	set dlist {}
1023	set args [lrange $args 1 end]
1024	foreach dataobj $args {
1025	if { [info exists _obj2ovride($dataobj-raise)] } {
1026	lappend dlist $dataobj
1027	}
1028	}
1029	} else {
1030	set dlist [get -visible]
1031	}
1032	}
1033	default {
1034	set dlist $args
1035	}
1036	}
1037	set rlist ""
1038	foreach dataobj $dlist {
1039	foreach comp [$dataobj components] {
1040	set tag $dataobj-$comp
1041	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1042	lappend rlist $tag
1043	}
1044	}
1045	}
1046	return $rlist
1047	}
1048
1049	# ----------------------------------------------------------------------
1050	# USAGE: Zoom in
1051	# USAGE: Zoom out
1052	# USAGE: Zoom reset
1053	#
1054	# Called automatically when the user clicks on one of the zoom
1055	# controls for this widget. Changes the zoom for the current view.
1056	# ----------------------------------------------------------------------
1057	itcl::body Rappture::VtkViewer::Zoom {option} {
1058	switch -- $option {
1059	"in" {
1060	set _view(zoom) [expr {$_view(zoom)*1.25}]
1061	SendCmd "camera zoom $_view(zoom)"
1062	}
1063	"out" {
1064	set _view(zoom) [expr {$_view(zoom)*0.8}]
1065	SendCmd "camera zoom $_view(zoom)"
1066	}
1067	"reset" {
1068	array set _view {
1069	qw 0.853553
1070	qx -0.353553
1071	qy 0.353553
1072	qz 0.146447
1073	zoom 1.0
1074	xpan 0
1075	ypan 0
1076	}
1077	SendCmd "camera reset all"
1078	if { $_first != "" } {
1079	set location [$_first hints camera]
1080	if { $location != "" } {
1081	array set _view $location
1082	}
1083	}
1084	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1085	$_arcball quaternion $q
1086	DoRotate
1087	}
1088	}
1089	}
1090
1091	itcl::body Rappture::VtkViewer::PanCamera {} {
1092	set x $_view(xpan)
1093	set y $_view(ypan)
1094	SendCmd "camera pan $x $y"
1095	}
1096
1097
1098	# ----------------------------------------------------------------------
1099	# USAGE: Rotate click <x> <y>
1100	# USAGE: Rotate drag <x> <y>
1101	# USAGE: Rotate release <x> <y>
1102	#
1103	# Called automatically when the user clicks/drags/releases in the
1104	# plot area. Moves the plot according to the user's actions.
1105	# ----------------------------------------------------------------------
1106	itcl::body Rappture::VtkViewer::Rotate {option x y} {
1107	switch -- $option {
1108	"click" {
1109	$itk_component(view) configure -cursor fleur
1110	set _click(x) $x
1111	set _click(y) $y
1112	}
1113	"drag" {
1114	if {[array size _click] == 0} {
1115	Rotate click $x $y
1116	} else {
1117	set w [winfo width $itk_component(view)]
1118	set h [winfo height $itk_component(view)]
1119	if {$w <= 0 \|\| $h <= 0} {
1120	return
1121	}
1122
1123	if {[catch {
1124	# this fails sometimes for no apparent reason
1125	set dx [expr {double($x-$_click(x))/$w}]
1126	set dy [expr {double($y-$_click(y))/$h}]
1127	}]} {
1128	return
1129	}
1130	if { $dx == 0 && $dy == 0 } {
1131	return
1132	}
1133	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1134	EventuallyRotate $q
1135	set _click(x) $x
1136	set _click(y) $y
1137	}
1138	}
1139	"release" {
1140	Rotate drag $x $y
1141	$itk_component(view) configure -cursor ""
1142	catch {unset _click}
1143	}
1144	default {
1145	error "bad option \"$option\": should be click, drag, release"
1146	}
1147	}
1148	}
1149
1150	itcl::body Rappture::VtkViewer::Pick {x y} {
1151	foreach tag [CurrentDatasets -visible] {
1152	SendCmd "dataset getscalar pixel $x $y $tag"
1153	}
1154	}
1155
1156	# ----------------------------------------------------------------------
1157	# USAGE: $this Pan click x y
1158	# $this Pan drag x y
1159	# $this Pan release x y
1160	#
1161	# Called automatically when the user clicks on one of the zoom
1162	# controls for this widget. Changes the zoom for the current view.
1163	# ----------------------------------------------------------------------
1164	itcl::body Rappture::VtkViewer::Pan {option x y} {
1165	switch -- $option {
1166	"set" {
1167	set w [winfo width $itk_component(view)]
1168	set h [winfo height $itk_component(view)]
1169	set x [expr $x / double($w)]
1170	set y [expr $y / double($h)]
1171	set _view(xpan) [expr $_view(xpan) + $x]
1172	set _view(ypan) [expr $_view(ypan) + $y]
1173	PanCamera
1174	return
1175	}
1176	"click" {
1177	set _click(x) $x
1178	set _click(y) $y
1179	$itk_component(view) configure -cursor hand1
1180	}
1181	"drag" {
1182	if { ![info exists _click(x)] } {
1183	set _click(x) $x
1184	}
1185	if { ![info exists _click(y)] } {
1186	set _click(y) $y
1187	}
1188	set w [winfo width $itk_component(view)]
1189	set h [winfo height $itk_component(view)]
1190	set dx [expr ($_click(x) - $x)/double($w)]
1191	set dy [expr ($_click(y) - $y)/double($h)]
1192	set _click(x) $x
1193	set _click(y) $y
1194	set _view(xpan) [expr $_view(xpan) - $dx]
1195	set _view(ypan) [expr $_view(ypan) - $dy]
1196	PanCamera
1197	}
1198	"release" {
1199	Pan drag $x $y
1200	$itk_component(view) configure -cursor ""
1201	}
1202	default {
1203	error "unknown option \"$option\": should set, click, drag, or release"
1204	}
1205	}
1206	}
1207
1208	# ----------------------------------------------------------------------
1209	# USAGE: FixSettings <what> ?<value>?
1210	#
1211	# Used internally to update rendering settings whenever parameters
1212	# change in the popup settings panel. Sends the new settings off
1213	# to the back end.
1214	# ----------------------------------------------------------------------
1215	itcl::body Rappture::VtkViewer::FixSettings { args } {
1216	foreach setting $args {
1217	AdjustSetting $setting
1218	}
1219	}
1220
1221	#
1222	# AdjustSetting --
1223	#
1224	# Changes/updates a specific setting in the widget. There are
1225	# usually user-setable option. Commands are sent to the render
1226	# server.
1227	#
1228	itcl::body Rappture::VtkViewer::AdjustSetting {what {value ""}} {
1229	if { ![isconnected] } {
1230	return
1231	}
1232	switch -- $what {
1233	"mesh-opacity" {
1234	set val $_settings(mesh-opacity)
1235	set sval [expr { 0.01 * double($val) }]
1236	foreach dataset [CurrentDatasets -visible $_first] {
1237	foreach { dataobj comp } [split $dataset -] break
1238	set type [$dataobj type $comp]
1239	if { $type == "polydata" } {
1240	SendCmd "$type opacity $sval $dataset"
1241	}
1242	}
1243	}
1244	"mesh-wireframe" {
1245	set bool $_settings(mesh-wireframe)
1246	foreach dataset [CurrentDatasets -visible $_first] {
1247	foreach { dataobj comp } [split $dataset -] break
1248	set type [$dataobj type $comp]
1249	if { $type == "polydata" } {
1250	SendCmd "$type wireframe $bool $dataset"
1251	}
1252	}
1253	}
1254	"mesh-visible" {
1255	set bool $_settings(mesh-visible)
1256	foreach dataset [CurrentDatasets -visible $_first] {
1257	foreach { dataobj comp } [split $dataset -] break
1258	set type [$dataobj type $comp]
1259	if { $type == "polydata" } {
1260	SendCmd "$type visible $bool $dataset"
1261	}
1262	}
1263	}
1264	"mesh-lighting" {
1265	set bool $_settings(mesh-lighting)
1266	foreach dataset [CurrentDatasets -visible $_first] {
1267	foreach { dataobj comp } [split $dataset -] break
1268	set type [$dataobj type $comp]
1269	if { $type == "polydata" } {
1270	SendCmd "$type lighting $bool $dataset"
1271	}
1272	}
1273	}
1274	"mesh-edges" {
1275	set bool $_settings(mesh-edges)
1276	foreach dataset [CurrentDatasets -visible $_first] {
1277	foreach { dataobj comp } [split $dataset -] break
1278	set type [$dataobj type $comp]
1279	if { $type == "polydata" } {
1280	SendCmd "$type edges $bool $dataset"
1281	}
1282	}
1283	}
1284	"mesh-palette" {
1285	set palette [$itk_component(meshpalette) value]
1286	set _settings(mesh-palette) $palette
1287	foreach dataset [CurrentDatasets -visible $_first] {
1288	foreach {dataobj comp} [split $dataset -] break
1289	set type [$dataobj type $comp]
1290	if { $type == "polydata" } {
1291	ChangeColormap $dataobj $comp $palette
1292	}
1293	}
1294	set _legendPending 1
1295	}
1296	"molecule-opacity" {
1297	set val $_settings(molecule-opacity)
1298	set sval [expr { 0.01 * double($val) }]
1299	foreach dataset [CurrentDatasets -visible $_first] {
1300	foreach { dataobj comp } [split $dataset -] break
1301	set type [$dataobj type $comp]
1302	if { $type == "molecule" } {
1303	SendCmd "molecule opacity $sval $dataset"
1304	}
1305	}
1306	}
1307	"molecule-wireframe" {
1308	set bool $_settings(molecule-wireframe)
1309	foreach dataset [CurrentDatasets -visible $_first] {
1310	foreach { dataobj comp } [split $dataset -] break
1311	set type [$dataobj type $comp]
1312	if { $type == "molecule" } {
1313	SendCmd "molecule wireframe $bool $dataset"
1314	}
1315	}
1316	}
1317	"molecule-visible" {
1318	set bool $_settings(molecule-visible)
1319	foreach dataset [CurrentDatasets -visible $_first] {
1320	foreach { dataobj comp } [split $dataset -] break
1321	set type [$dataobj type $comp]
1322	if { $type == "molecule" } {
1323	SendCmd "molecule visible $bool $dataset"
1324	}
1325	}
1326	}
1327	"molecule-lighting" {
1328	set bool $_settings(molecule-lighting)
1329	foreach dataset [CurrentDatasets -visible $_first] {
1330	foreach { dataobj comp } [split $dataset -] break
1331	set type [$dataobj type $comp]
1332	if { $type == "molecule" } {
1333	SendCmd "molecule lighting $bool $dataset"
1334	}
1335	}
1336	}
1337	"molecule-edges" {
1338	set bool $_settings(molecule-edges)
1339	foreach dataset [CurrentDatasets -visible $_first] {
1340	foreach { dataobj comp } [split $dataset -] break
1341	set type [$dataobj type $comp]
1342	if { $type == "molecule" } {
1343	SendCmd "molecule edges $bool $dataset"
1344	}
1345	}
1346	}
1347	"molecule-palette" {
1348	set palette [$itk_component(moleculepalette) value]
1349	set _settings(molecule-palette) $palette
1350	foreach dataset [CurrentDatasets -visible $_first] {
1351	foreach {dataobj comp} [split $dataset -] break
1352	set type [$dataobj type $comp]
1353	if { $type == "molecule" } {
1354	ChangeColormap $dataobj $comp $palette
1355	if { $palette == "elementDefault" } {
1356	SendCmd "molecule colormode by_elements element $dataset"
1357	} else {
1358	# FIXME: Set the chosen scalar field name here
1359	SendCmd "molecule colormode scalar {} $dataset"
1360	}
1361	}
1362	}
1363	set _legendPending 1
1364	}
1365	"molecule-representation" {
1366	set value [$itk_component(representation) value]
1367	set value [$itk_component(representation) translate $value]
1368	switch -- $value {
1369	"ballandstick" {
1370	set rscale covalent
1371	set ashow 1
1372	set bshow 1
1373	set bstyle cylinder
1374	set ascale 0.3
1375	set bscale 0.075
1376	}
1377	"balls" - "spheres" {
1378	set rscale covalent
1379	set ashow 1
1380	set bshow 0
1381	set bstyle cylinder
1382	set ascale 0.3
1383	set bscale 0.075
1384	}
1385	"sticks" {
1386	set rscale none
1387	set ashow 1
1388	set bshow 1
1389	set bstyle cylinder
1390	set ascale 0.075
1391	set bscale 0.075
1392	}
1393	"spacefilling" {
1394	set rscale van_der_waals
1395	set ashow 1
1396	set bshow 0
1397	set bstyle cylinder
1398	set ascale 1.0
1399	set bscale 0.075
1400	}
1401	"rods" {
1402	set rscale none
1403	set ashow 1
1404	set bshow 1
1405	set bstyle cylinder
1406	set ascale 0.1
1407	set bscale 0.1
1408	}
1409	"wireframe" - "lines" {
1410	set rscale none
1411	set ashow 0
1412	set bshow 1
1413	set bstyle line
1414	set ascale 1.0
1415	set bscale 1.0
1416	}
1417	default {
1418	error "unknown representation $value"
1419	}
1420	}
1421	foreach dataset [CurrentDatasets -visible $_first] {
1422	foreach {dataobj comp} [split $dataset -] break
1423	set type [$dataobj type $comp]
1424	if { $type == "molecule" } {
1425	SendCmd [subst {molecule rscale $rscale $dataset
1426	molecule atoms $ashow $dataset
1427	molecule bonds $bshow $dataset
1428	molecule bstyle $bstyle $dataset
1429	molecule ascale $ascale $dataset
1430	molecule bscale $bscale $dataset}]
1431	}
1432	}
1433	}
1434	"molecule-labels" {
1435	set bool $_settings(molecule-labels)
1436	foreach dataset [CurrentDatasets -visible $_first] {
1437	foreach { dataobj comp } [split $dataset -] break
1438	set type [$dataobj type $comp]
1439	if { $type == "molecule" } {
1440	SendCmd "molecule labels $bool $dataset"
1441	}
1442	}
1443	}
1444	"axis-visible" {
1445	set bool $_axis(visible)
1446	SendCmd "axis visible all $bool"
1447	}
1448	"axis-labels" {
1449	set bool $_axis(labels)
1450	SendCmd "axis labels all $bool"
1451	}
1452	"axis-xgrid" {
1453	set bool $_axis(xgrid)
1454	SendCmd "axis grid x $bool"
1455	}
1456	"axis-ygrid" {
1457	set bool $_axis(ygrid)
1458	SendCmd "axis grid y $bool"
1459	}
1460	"axis-zgrid" {
1461	set bool $_axis(zgrid)
1462	SendCmd "axis grid z $bool"
1463	}
1464	"axis-mode" {
1465	set mode [$itk_component(axismode) value]
1466	set mode [$itk_component(axismode) translate $mode]
1467	SendCmd "axis flymode $mode"
1468	}
1469	"axis-xcutaway" - "axis-ycutaway" - "axis-zcutaway" {
1470	set axis [string range $what 5 5]
1471	set bool $_axis(${axis}cutaway)
1472	if { $bool } {
1473	set pos [expr $_axis(${axis}position) * 0.01]
1474	set dir $_axis(${axis}direction)
1475	$itk_component(${axis}CutScale) configure -state normal \
1476	-troughcolor white
1477	SendCmd "renderer clipplane $axis $pos $dir"
1478	} else {
1479	$itk_component(${axis}CutScale) configure -state disabled \
1480	-troughcolor grey82
1481	SendCmd "renderer clipplane $axis 1 -1"
1482	}
1483	}
1484	"axis-xposition" - "axis-yposition" - "axis-zposition" -
1485	"axis-xdirection" - "axis-ydirection" - "axis-zdirection" {
1486	set axis [string range $what 5 5]
1487	#set dir $_axis(${axis}direction)
1488	set pos [expr $_axis(${axis}position) * 0.01]
1489	SendCmd "renderer clipplane ${axis} $pos -1"
1490	}
1491	default {
1492	error "don't know how to fix $what"
1493	}
1494	}
1495	}
1496
1497	#
1498	# RequestLegend --
1499	#
1500	# Request a new legend from the server. The size of the legend
1501	# is determined from the height of the canvas. It will be rotated
1502	# to be vertical when drawn.
1503	#
1504	itcl::body Rappture::VtkViewer::RequestLegend {} {
1505	set font "Arial 8"
1506	set lineht [font metrics $font -linespace]
1507	set c $itk_component(legend)
1508	set w 12
1509	set h [expr {$_height - 2 * ($lineht + 2)}]
1510	if { $h < 1} {
1511	return
1512	}
1513	# Set the legend on the first dataset.
1514	foreach dataset [CurrentDatasets -visible] {
1515	foreach {dataobj comp} [split $dataset -] break
1516	if { [info exists _dataset2style($dataset)] } {
1517	SendCmd "legend $_dataset2style($dataset) vmag {} {} $w $h 0"
1518	break;
1519	}
1520	}
1521	}
1522
1523	#
1524	# ChangeColormap --
1525	#
1526	itcl::body Rappture::VtkViewer::ChangeColormap {dataobj comp color} {
1527	set tag $dataobj-$comp
1528	if { ![info exist _style($tag)] } {
1529	error "no initial colormap"
1530	}
1531	array set style $_style($tag)
1532	set style(-color) $color
1533	set _style($tag) [array get style]
1534	SetColormap $dataobj $comp
1535	}
1536
1537	#
1538	# SetColormap --
1539	#
1540	itcl::body Rappture::VtkViewer::SetColormap { dataobj comp } {
1541	array set style {
1542	-color BCGYR
1543	-levels 6
1544	-opacity 1.0
1545	}
1546	if {[$dataobj type $comp] == "molecule"} {
1547	set style(-color) elementDefault
1548	}
1549	set tag $dataobj-$comp
1550	if { ![info exists _initialStyle($tag)] } {
1551	# Save the initial component style.
1552	set _initialStyle($tag) [$dataobj style $comp]
1553	}
1554
1555	# Override defaults with initial style defined in xml.
1556	array set style $_initialStyle($tag)
1557
1558	if { ![info exists _style($tag)] } {
1559	set _style($tag) [array get style]
1560	}
1561	# Override initial style with current style.
1562	array set style $_style($tag)
1563
1564	if { $style(-color) == "elementDefault" } {
1565	set name "$style(-color)"
1566	} else {
1567	set name "$style(-color):$style(-levels):$style(-opacity)"
1568	}
1569	if { ![info exists _colormaps($name)] } {
1570	BuildColormap $name [array get style]
1571	set _colormaps($name) 1
1572	}
1573	if { ![info exists _dataset2style($tag)] \|\|
1574	$_dataset2style($tag) != $name } {
1575	set _dataset2style($tag) $name
1576	switch -- [$dataobj type $comp] {
1577	"polygon" {
1578	SendCmd "pseudocolor colormap $name $tag"
1579	}
1580	"glyphs" {
1581	SendCmd "glyphs colormap $name $tag"
1582	}
1583	"molecule" {
1584	SendCmd "molecule colormap $name $tag"
1585	}
1586	}
1587	}
1588	}
1589
1590	#
1591	# BuildColormap --
1592	#
1593	itcl::body Rappture::VtkViewer::BuildColormap { name styles } {
1594	puts stderr name=$name
1595	if { $name == "elementDefault" } {
1596	return
1597	}
1598	array set style $styles
1599	set cmap [ColorsToColormap $style(-color)]
1600	if { [llength $cmap] == 0 } {
1601	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1602	}
1603	if { ![info exists _settings(mesh-opacity)] } {
1604	set _settings(mesh-opacity) $style(-opacity)
1605	}
1606	set max $_settings(mesh-opacity)
1607
1608	set wmap "0.0 1.0 1.0 1.0"
1609	SendCmd "colormap add $name { $cmap } { $wmap }"
1610	}
1611
1612
1613	# ----------------------------------------------------------------------
1614	# CONFIGURATION OPTION: -plotbackground
1615	# ----------------------------------------------------------------------
1616	itcl::configbody Rappture::VtkViewer::plotbackground {
1617	if { [isconnected] } {
1618	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
1619	SendCmd "screen bgcolor $r $g $b"
1620	}
1621	}
1622
1623	# ----------------------------------------------------------------------
1624	# CONFIGURATION OPTION: -plotforeground
1625	# ----------------------------------------------------------------------
1626	itcl::configbody Rappture::VtkViewer::plotforeground {
1627	if { [isconnected] } {
1628	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
1629	#fix this!
1630	#SendCmd "color background $r $g $b"
1631	}
1632	}
1633
1634	itcl::body Rappture::VtkViewer::limits { dataobj } {
1635
1636	array unset _limits $dataobj-*
1637	foreach comp [$dataobj components] {
1638	set tag $dataobj-$comp
1639	if { ![info exists _limits($tag)] } {
1640	set data [$dataobj data $comp]
1641	if { $data == "" } {
1642	continue
1643	}
1644	set tmpfile file[pid].vtk
1645	set f [open "$tmpfile" "w"]
1646	fconfigure $f -translation binary -encoding binary
1647	puts $f $data
1648	close $f
1649	set reader [vtkDataSetReader $tag-xvtkDataSetReader]
1650	$reader SetFileName $tmpfile
1651	$reader ReadAllNormalsOn
1652	$reader ReadAllScalarsOn
1653	$reader ReadAllVectorsOn
1654	$reader ReadAllFieldsOn
1655	$reader Update
1656	set output [$reader GetOutput]
1657	set _limits($tag) [$output GetBounds]
1658	set pointData [$output GetPointData]
1659	set fieldData [$output GetFieldData]
1660	if 0 {
1661	puts stderr "\#scalars=[$reader GetNumberOfScalarsInFile]"
1662	puts stderr "\#vectors=[$reader GetNumberOfVectorsInFile]"
1663	puts stderr "\#tensors=[$reader GetNumberOfTensorsInFile]"
1664	puts stderr "\#normals=[$reader GetNumberOfNormalsInFile]"
1665	puts stderr "\#fielddata=[$reader GetNumberOfFieldDataInFile]"
1666	puts stderr "fielddataname=[$reader GetFieldDataNameInFile 0]"
1667	puts stderr "field \#arrays=[$fieldData GetNumberOfArrays]"
1668	puts stderr "point \#arrays=[$pointData GetNumberOfArrays]"
1669	puts stderr "field \#components=[$fieldData GetNumberOfComponents]"
1670	puts stderr "point \#components=[$pointData GetNumberOfComponents]"
1671	puts stderr "field \#tuples=[$fieldData GetNumberOfTuples]"
1672	puts stderr "point \#tuples=[$pointData GetNumberOfTuples]"
1673	puts stderr "point \#scalars=[$pointData GetScalars]"
1674	puts stderr vectors=[$pointData GetVectors]
1675	}
1676	rename $output ""
1677	rename $reader ""
1678	file delete $tmpfile
1679	}
1680	foreach { xMin xMax yMin yMax zMin zMax} $_limits($tag) break
1681	if {![info exists limits(xmin)] \|\| $limits(xmin) > $xMin} {
1682	set limits(xmin) $xMin
1683	}
1684	if {![info exists limits(xmax)] \|\| $limits(xmax) < $xMax} {
1685	set limits(xmax) $xMax
1686	}
1687	if {![info exists limits(ymin)] \|\| $limits(ymin) > $yMin} {
1688	set limits(ymin) $xMin
1689	}
1690	if {![info exists limits(ymax)] \|\| $limits(ymax) < $yMax} {
1691	set limits(ymax) $yMax
1692	}
1693	if {![info exists limits(zmin)] \|\| $limits(zmin) > $zMin} {
1694	set limits(zmin) $zMin
1695	}
1696	if {![info exists limits(zmax)] \|\| $limits(zmax) < $zMax} {
1697	set limits(zmax) $zMax
1698	}
1699	}
1700	return [array get limits]
1701	}
1702
1703	itcl::body Rappture::VtkViewer::BuildMeshTab {} {
1704
1705	set fg [option get $itk_component(hull) font Font]
1706	#set bfg [option get $itk_component(hull) boldFont Font]
1707
1708	set inner [$itk_component(main) insert end \
1709	-title "Mesh Settings" \
1710	-icon [Rappture::icon mesh]]
1711	$inner configure -borderwidth 4
1712
1713	checkbutton $inner.mesh \
1714	-text "Show Mesh" \
1715	-variable [itcl::scope _settings(mesh-visible)] \
1716	-command [itcl::code $this AdjustSetting mesh-visible] \
1717	-font "Arial 9" -anchor w
1718
1719	checkbutton $inner.wireframe \
1720	-text "Show Wireframe" \
1721	-variable [itcl::scope _settings(mesh-wireframe)] \
1722	-command [itcl::code $this AdjustSetting mesh-wireframe] \
1723	-font "Arial 9" -anchor w
1724
1725	checkbutton $inner.lighting \
1726	-text "Enable Lighting" \
1727	-variable [itcl::scope _settings(mesh-lighting)] \
1728	-command [itcl::code $this AdjustSetting mesh-lighting] \
1729	-font "Arial 9" -anchor w
1730
1731	checkbutton $inner.edges \
1732	-text "Show Edges" \
1733	-variable [itcl::scope _settings(mesh-edges)] \
1734	-command [itcl::code $this AdjustSetting mesh-edges] \
1735	-font "Arial 9" -anchor w
1736
1737	label $inner.palette_l -text "Palette" -font "Arial 9" -anchor w
1738	itk_component add meshpalette {
1739	Rappture::Combobox $inner.palette -width 10 -editable no
1740	}
1741	$inner.palette choices insert end \
1742	"BCGYR" "BCGYR" \
1743	"BGYOR" "BGYOR" \
1744	"blue" "blue" \
1745	"blue-to-brown" "blue-to-brown" \
1746	"blue-to-orange" "blue-to-orange" \
1747	"blue-to-grey" "blue-to-grey" \
1748	"green-to-magenta" "green-to-magenta" \
1749	"greyscale" "greyscale" \
1750	"nanohub" "nanohub" \
1751	"rainbow" "rainbow" \
1752	"spectral" "spectral" \
1753	"ROYGB" "ROYGB" \
1754	"RYGCB" "RYGCB" \
1755	"brown-to-blue" "brown-to-blue" \
1756	"grey-to-blue" "grey-to-blue" \
1757	"orange-to-blue" "orange-to-blue"
1758
1759	$itk_component(meshpalette) value "BCGYR"
1760	bind $inner.palette <<Value>> \
1761	[itcl::code $this AdjustSetting mesh-palette]
1762
1763	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1764	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1765	-variable [itcl::scope _settings(mesh-opacity)] \
1766	-width 10 \
1767	-showvalue off \
1768	-command [itcl::code $this AdjustSetting mesh-opacity]
1769
1770	blt::table $inner \
1771	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1772	1,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1773	2,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1774	3,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1775	4,0 $inner.opacity_l -anchor w -pady 2 \
1776	4,1 $inner.opacity -fill x -pady 2 \
1777	5,0 $inner.palette_l -anchor w -pady 2 \
1778	5,1 $inner.palette -fill x -pady 2
1779
1780	blt::table configure $inner r* c* -resize none
1781	blt::table configure $inner r7 c1 -resize expand
1782	}
1783
1784	itcl::body Rappture::VtkViewer::BuildAxisTab {} {
1785
1786	set fg [option get $itk_component(hull) font Font]
1787	#set bfg [option get $itk_component(hull) boldFont Font]
1788
1789	set inner [$itk_component(main) insert end \
1790	-title "Axis Settings" \
1791	-icon [Rappture::icon axis1]]
1792	$inner configure -borderwidth 4
1793
1794	checkbutton $inner.visible \
1795	-text "Show Axes" \
1796	-variable [itcl::scope _axis(visible)] \
1797	-command [itcl::code $this AdjustSetting axis-visible] \
1798	-font "Arial 9"
1799
1800	checkbutton $inner.labels \
1801	-text "Show Axis Labels" \
1802	-variable [itcl::scope _axis(labels)] \
1803	-command [itcl::code $this AdjustSetting axis-labels] \
1804	-font "Arial 9"
1805
1806	checkbutton $inner.gridx \
1807	-text "Show X Grid" \
1808	-variable [itcl::scope _axis(xgrid)] \
1809	-command [itcl::code $this AdjustSetting axis-xgrid] \
1810	-font "Arial 9"
1811	checkbutton $inner.gridy \
1812	-text "Show Y Grid" \
1813	-variable [itcl::scope _axis(ygrid)] \
1814	-command [itcl::code $this AdjustSetting axis-ygrid] \
1815	-font "Arial 9"
1816	checkbutton $inner.gridz \
1817	-text "Show Z Grid" \
1818	-variable [itcl::scope _axis(zgrid)] \
1819	-command [itcl::code $this AdjustSetting axis-zgrid] \
1820	-font "Arial 9"
1821
1822	label $inner.mode_l -text "Mode" -font "Arial 9"
1823
1824	itk_component add axismode {
1825	Rappture::Combobox $inner.mode -width 10 -editable no
1826	}
1827	$inner.mode choices insert end \
1828	"static_triad" "static" \
1829	"closest_triad" "closest" \
1830	"furthest_triad" "furthest" \
1831	"outer_edges" "outer"
1832	$itk_component(axismode) value "static"
1833	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axis-mode]
1834
1835	blt::table $inner \
1836	0,0 $inner.visible -anchor w -cspan 2 \
1837	1,0 $inner.labels -anchor w -cspan 2 \
1838	2,0 $inner.gridx -anchor w -cspan 2 \
1839	3,0 $inner.gridy -anchor w -cspan 2 \
1840	4,0 $inner.gridz -anchor w -cspan 2 \
1841	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1842	6,0 $inner.mode -fill x -cspan 2
1843
1844	blt::table configure $inner r* c* -resize none
1845	blt::table configure $inner r7 c1 -resize expand
1846	}
1847
1848
1849	itcl::body Rappture::VtkViewer::BuildCameraTab {} {
1850	set inner [$itk_component(main) insert end \
1851	-title "Camera Settings" \
1852	-icon [Rappture::icon camera]]
1853	$inner configure -borderwidth 4
1854
1855	set labels { qx qy qz qw xpan ypan zoom }
1856	set row 0
1857	foreach tag $labels {
1858	label $inner.${tag}label -text $tag -font "Arial 9"
1859	entry $inner.${tag} -font "Arial 9" -bg white \
1860	-textvariable [itcl::scope _view($tag)]
1861	bind $inner.${tag} <KeyPress-Return> \
1862	[itcl::code $this camera set ${tag}]
1863	blt::table $inner \
1864	$row,0 $inner.${tag}label -anchor e -pady 2 \
1865	$row,1 $inner.${tag} -anchor w -pady 2
1866	blt::table configure $inner r$row -resize none
1867	incr row
1868	}
1869	checkbutton $inner.ortho \
1870	-text "Orthographic Projection" \
1871	-variable [itcl::scope _view(ortho)] \
1872	-command [itcl::code $this camera set ortho] \
1873	-font "Arial 9"
1874	blt::table $inner \
1875	$row,0 $inner.ortho -columnspan 2 -anchor w -pady 2
1876	blt::table configure $inner r$row -resize none
1877	incr row
1878
1879	blt::table configure $inner c0 c1 -resize none
1880	blt::table configure $inner c2 -resize expand
1881	blt::table configure $inner r$row -resize expand
1882	}
1883
1884	itcl::body Rappture::VtkViewer::BuildCutawayTab {} {
1885
1886	set fg [option get $itk_component(hull) font Font]
1887
1888	set inner [$itk_component(main) insert end \
1889	-title "Cutaway Along Axis" \
1890	-icon [Rappture::icon cutbutton]]
1891
1892	$inner configure -borderwidth 4
1893
1894	# X-value slicer...
1895	itk_component add xCutButton {
1896	Rappture::PushButton $inner.xbutton \
1897	-onimage [Rappture::icon x-cutplane] \
1898	-offimage [Rappture::icon x-cutplane] \
1899	-command [itcl::code $this AdjustSetting axis-xcutaway] \
1900	-variable [itcl::scope _axis(xcutaway)]
1901	}
1902	Rappture::Tooltip::for $itk_component(xCutButton) \
1903	"Toggle the X-axis cutaway on/off"
1904
1905	itk_component add xCutScale {
1906	::scale $inner.xval -from 100 -to 0 \
1907	-width 10 -orient vertical -showvalue yes \
1908	-borderwidth 1 -highlightthickness 0 \
1909	-command [itcl::code $this Slice move x] \
1910	-variable [itcl::scope _axis(xposition)]
1911	} {
1912	usual
1913	ignore -borderwidth -highlightthickness
1914	}
1915	# Set the default cutaway value before disabling the scale.
1916	$itk_component(xCutScale) set 100
1917	$itk_component(xCutScale) configure -state disabled
1918	Rappture::Tooltip::for $itk_component(xCutScale) \
1919	"@[itcl::code $this Slice tooltip x]"
1920
1921	itk_component add xDirButton {
1922	Rappture::PushButton $inner.xdir \
1923	-onimage [Rappture::icon arrow-down] \
1924	-onvalue -1 \
1925	-offimage [Rappture::icon arrow-up] \
1926	-offvalue 1 \
1927	-command [itcl::code $this AdjustSetting axis-xdirection] \
1928	-variable [itcl::scope _axis(xdirection)]
1929	}
1930	set _axis(xdirection) -1
1931	Rappture::Tooltip::for $itk_component(xDirButton) \
1932	"Toggle the direction of the X-axis cutaway"
1933
1934	# Y-value slicer...
1935	itk_component add yCutButton {
1936	Rappture::PushButton $inner.ybutton \
1937	-onimage [Rappture::icon y-cutplane] \
1938	-offimage [Rappture::icon y-cutplane] \
1939	-command [itcl::code $this AdjustSetting axis-ycutaway] \
1940	-variable [itcl::scope _axis(ycutaway)]
1941	}
1942	Rappture::Tooltip::for $itk_component(yCutButton) \
1943	"Toggle the Y-axis cutaway on/off"
1944
1945	itk_component add yCutScale {
1946	::scale $inner.yval -from 100 -to 0 \
1947	-width 10 -orient vertical -showvalue yes \
1948	-borderwidth 1 -highlightthickness 0 \
1949	-command [itcl::code $this Slice move y] \
1950	-variable [itcl::scope _axis(yposition)]
1951	} {
1952	usual
1953	ignore -borderwidth -highlightthickness
1954	}
1955	Rappture::Tooltip::for $itk_component(yCutScale) \
1956	"@[itcl::code $this Slice tooltip y]"
1957	# Set the default cutaway value before disabling the scale.
1958	$itk_component(yCutScale) set 100
1959	$itk_component(yCutScale) configure -state disabled
1960
1961	itk_component add yDirButton {
1962	Rappture::PushButton $inner.ydir \
1963	-onimage [Rappture::icon arrow-down] \
1964	-onvalue -1 \
1965	-offimage [Rappture::icon arrow-up] \
1966	-offvalue 1 \
1967	-command [itcl::code $this AdjustSetting axis-ydirection] \
1968	-variable [itcl::scope _axis(ydirection)]
1969	}
1970	Rappture::Tooltip::for $itk_component(yDirButton) \
1971	"Toggle the direction of the Y-axis cutaway"
1972	set _axis(ydirection) -1
1973
1974	# Z-value slicer...
1975	itk_component add zCutButton {
1976	Rappture::PushButton $inner.zbutton \
1977	-onimage [Rappture::icon z-cutplane] \
1978	-offimage [Rappture::icon z-cutplane] \
1979	-command [itcl::code $this AdjustSetting axis-zcutaway] \
1980	-variable [itcl::scope _axis(zcutaway)]
1981	}
1982	Rappture::Tooltip::for $itk_component(zCutButton) \
1983	"Toggle the Z-axis cutaway on/off"
1984
1985	itk_component add zCutScale {
1986	::scale $inner.zval -from 100 -to 0 \
1987	-width 10 -orient vertical -showvalue yes \
1988	-borderwidth 1 -highlightthickness 0 \
1989	-command [itcl::code $this Slice move z] \
1990	-variable [itcl::scope _axis(zposition)]
1991	} {
1992	usual
1993	ignore -borderwidth -highlightthickness
1994	}
1995	$itk_component(zCutScale) set 100
1996	$itk_component(zCutScale) configure -state disabled
1997	#$itk_component(zCutScale) configure -state disabled
1998	Rappture::Tooltip::for $itk_component(zCutScale) \
1999	"@[itcl::code $this Slice tooltip z]"
2000
2001	itk_component add zDirButton {
2002	Rappture::PushButton $inner.zdir \
2003	-onimage [Rappture::icon arrow-down] \
2004	-onvalue -1 \
2005	-offimage [Rappture::icon arrow-up] \
2006	-offvalue 1 \
2007	-command [itcl::code $this AdjustSetting axis-zdirection] \
2008	-variable [itcl::scope _axis(zdirection)]
2009	}
2010	set _axis(zdirection) -1
2011	Rappture::Tooltip::for $itk_component(zDirButton) \
2012	"Toggle the direction of the Z-axis cutaway"
2013
2014	blt::table $inner \
2015	0,0 $itk_component(xCutButton) -anchor e -padx 2 -pady 2 \
2016	1,0 $itk_component(xCutScale) -fill y \
2017	0,1 $itk_component(yCutButton) -anchor e -padx 2 -pady 2 \
2018	1,1 $itk_component(yCutScale) -fill y \
2019	0,2 $itk_component(zCutButton) -anchor e -padx 2 -pady 2 \
2020	1,2 $itk_component(zCutScale) -fill y \
2021
2022	blt::table configure $inner r* c* -resize none
2023	blt::table configure $inner r1 c3 -resize expand
2024	}
2025
2026	itcl::body Rappture::VtkViewer::BuildMoleculeTab {} {
2027	set fg [option get $itk_component(hull) font Font]
2028
2029	set inner [$itk_component(main) insert end \
2030	-title "Molecule Settings" \
2031	-icon [Rappture::icon molecule]]
2032	$inner configure -borderwidth 4
2033
2034	checkbutton $inner.molecule \
2035	-text "Show Molecule" \
2036	-variable [itcl::scope _settings(molecule-visible)] \
2037	-command [itcl::code $this AdjustSetting molecule-visible] \
2038	-font "Arial 9"
2039
2040	checkbutton $inner.label \
2041	-text "Show Atom Labels" \
2042	-variable [itcl::scope _settings(molecule-labels)] \
2043	-command [itcl::code $this AdjustSetting molecule-labels] \
2044	-font "Arial 9"
2045
2046	checkbutton $inner.wireframe \
2047	-text "Show Wireframe" \
2048	-variable [itcl::scope _settings(molecule-wireframe)] \
2049	-command [itcl::code $this AdjustSetting molecule-wireframe] \
2050	-font "Arial 9"
2051
2052	checkbutton $inner.lighting \
2053	-text "Enable Lighting" \
2054	-variable [itcl::scope _settings(molecule-lighting)] \
2055	-command [itcl::code $this AdjustSetting molecule-lighting] \
2056	-font "Arial 9"
2057
2058	checkbutton $inner.edges \
2059	-text "Show Edges" \
2060	-variable [itcl::scope _settings(molecule-edges)] \
2061	-command [itcl::code $this AdjustSetting molecule-edges] \
2062	-font "Arial 9"
2063
2064	label $inner.rep_l -text "Molecule Representation" \
2065	-font "Arial 9"
2066
2067	itk_component add representation {
2068	Rappture::Combobox $inner.rep -width 20 -editable no
2069	}
2070	$inner.rep choices insert end \
2071	"ballandstick" "Ball and Stick" \
2072	"spheres" "Spheres" \
2073	"sticks" "Sticks" \
2074	"rods" "Rods" \
2075	"wireframe" "Wireframe" \
2076	"spacefilling" "Space Filling"
2077
2078	bind $inner.rep <<Value>> \
2079	[itcl::code $this AdjustSetting molecule-representation]
2080	$inner.rep value "Ball and Stick"
2081
2082	label $inner.palette_l -text "Palette" -font "Arial 9"
2083	itk_component add moleculepalette {
2084	Rappture::Combobox $inner.palette -width 10 -editable no
2085	}
2086	$inner.palette choices insert end \
2087	"elementDefault" "elementDefault" \
2088	"BCGYR" "BCGYR" \
2089	"BGYOR" "BGYOR" \
2090	"blue" "blue" \
2091	"blue-to-brown" "blue-to-brown" \
2092	"blue-to-orange" "blue-to-orange" \
2093	"blue-to-grey" "blue-to-grey" \
2094	"green-to-magenta" "green-to-magenta" \
2095	"greyscale" "greyscale" \
2096	"nanohub" "nanohub" \
2097	"rainbow" "rainbow" \
2098	"spectral" "spectral" \
2099	"ROYGB" "ROYGB" \
2100	"RYGCB" "RYGCB" \
2101	"brown-to-blue" "brown-to-blue" \
2102	"grey-to-blue" "grey-to-blue" \
2103	"orange-to-blue" "orange-to-blue"
2104
2105	$itk_component(moleculepalette) value "elementDefault"
2106	bind $inner.palette <<Value>> \
2107	[itcl::code $this AdjustSetting molecule-palette]
2108
2109	checkbutton $inner.labels -text "Show labels on atoms" \
2110	-command [itcl::code $this labels update] \
2111	-variable [itcl::scope _settings(molecule-labels)] \
2112	-font "Arial 9"
2113	Rappture::Tooltip::for $inner.labels \
2114	"Display atom symbol and serial number."
2115
2116	checkbutton $inner.rock -text "Rock molecule back and forth" \
2117	-variable [itcl::scope _settings(molecule-rock)] \
2118	-font "Arial 9"
2119	Rappture::Tooltip::for $inner.rock \
2120	"Rotate the object back and forth around the y-axis."
2121
2122	checkbutton $inner.cell -text "Parallelepiped" \
2123	-font "Arial 9"
2124	$inner.cell select
2125
2126	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2127	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2128	-variable [itcl::scope _settings(molecule-opacity)] \
2129	-width 10 \
2130	-showvalue off \
2131	-command [itcl::code $this AdjustSetting molecule-opacity]
2132
2133	blt::table $inner \
2134	0,0 $inner.molecule -anchor w -pady {1 0} \
2135	1,0 $inner.label -anchor w -pady {1 0} \
2136	2,0 $inner.edges -anchor w -pady {1 0} \
2137	3,0 $inner.rep_l -anchor w -pady { 2 0 } \
2138	4,0 $inner.rep -anchor w \
2139	5,0 $inner.palette_l -anchor w -pady 2 \
2140	6,0 $inner.palette -fill x -pady 2 \
2141	7,0 $inner.opacity_l -anchor w -pady 2 \
2142	8,0 $inner.opacity -fill x -pady 2
2143
2144	blt::table configure $inner r* -resize none
2145	blt::table configure $inner r9 -resize expand
2146	}
2147
2148	#
2149	# camera --
2150	#
2151	itcl::body Rappture::VtkViewer::camera {option args} {
2152	switch -- $option {
2153	"show" {
2154	puts [array get _view]
2155	}
2156	"set" {
2157	set who [lindex $args 0]
2158	set x $_view($who)
2159	set code [catch { string is double $x } result]
2160	if { $code != 0 \|\| !$result } {
2161	return
2162	}
2163	switch -- $who {
2164	"ortho" {
2165	if {$_view(ortho)} {
2166	SendCmd "camera mode ortho"
2167	} else {
2168	SendCmd "camera mode persp"
2169	}
2170	}
2171	"xpan" - "ypan" {
2172	PanCamera
2173	}
2174	"qx" - "qy" - "qz" - "qw" {
2175	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2176	$_arcball quaternion $q
2177	EventuallyRotate $q
2178	}
2179	"zoom" {
2180	SendCmd "camera zoom $_view(zoom)"
2181	}
2182	}
2183	}
2184	}
2185	}
2186
2187	itcl::body Rappture::VtkViewer::ConvertToVtkData { dataobj comp } {
2188	foreach { x1 x2 xN y1 y2 yN } [$dataobj mesh $comp] break
2189	set values [$dataobj values $comp]
2190	append out "# vtk DataFile Version 2.0 \n"
2191	append out "Test data \n"
2192	append out "ASCII \n"
2193	append out "DATASET STRUCTURED_POINTS \n"
2194	append out "DIMENSIONS $xN $yN 1 \n"
2195	append out "ORIGIN 0 0 0 \n"
2196	append out "SPACING 1 1 1 \n"
2197	append out "POINT_DATA [expr $xN * $yN] \n"
2198	append out "SCALARS field float 1 \n"
2199	append out "LOOKUP_TABLE default \n"
2200	append out [join $values "\n"]
2201	append out "\n"
2202	return $out
2203	}
2204
2205
2206	itcl::body Rappture::VtkViewer::GetVtkData { args } {
2207	set bytes ""
2208	foreach dataobj [get] {
2209	foreach comp [$dataobj components] {
2210	set tag $dataobj-$comp
2211	set contents [$dataobj data $comp]
2212	append bytes "$contents\n"
2213	append bytes "\# End of VTK file\n\n"
2214	}
2215	}
2216	return [list .txt $bytes]
2217	}
2218
2219	itcl::body Rappture::VtkViewer::GetImage { args } {
2220	if { [image width $_image(download)] > 0 &&
2221	[image height $_image(download)] > 0 } {
2222	set bytes [$_image(download) data -format "jpeg -quality 100"]
2223	set bytes [Rappture::encoding::decode -as b64 $bytes]
2224	return [list .jpg $bytes]
2225	}
2226	return ""
2227	}
2228
2229	itcl::body Rappture::VtkViewer::BuildDownloadPopup { popup command } {
2230	Rappture::Balloon $popup \
2231	-title "[Rappture::filexfer::label downloadWord] as..."
2232	set inner [$popup component inner]
2233	label $inner.summary -text "" -anchor w
2234	radiobutton $inner.vtk_button -text "VTK data file" \
2235	-variable [itcl::scope _downloadPopup(format)] \
2236	-font "Helvetica 9 " \
2237	-value vtk
2238	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2239	radiobutton $inner.image_button -text "Image File" \
2240	-variable [itcl::scope _downloadPopup(format)] \
2241	-value image
2242	Rappture::Tooltip::for $inner.image_button \
2243	"Save as digital image."
2244
2245	button $inner.ok -text "Save" \
2246	-highlightthickness 0 -pady 2 -padx 3 \
2247	-command $command \
2248	-compound left \
2249	-image [Rappture::icon download]
2250
2251	button $inner.cancel -text "Cancel" \
2252	-highlightthickness 0 -pady 2 -padx 3 \
2253	-command [list $popup deactivate] \
2254	-compound left \
2255	-image [Rappture::icon cancel]
2256
2257	blt::table $inner \
2258	0,0 $inner.summary -cspan 2 \
2259	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2260	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2261	4,1 $inner.cancel -width .9i -fill y \
2262	4,0 $inner.ok -padx 2 -width .9i -fill y
2263	blt::table configure $inner r3 -height 4
2264	blt::table configure $inner r4 -pady 4
2265	raise $inner.image_button
2266	$inner.vtk_button invoke
2267	return $inner
2268	}
2269
2270	itcl::body Rappture::VtkViewer::SetObjectStyle { dataobj comp } {
2271	# Parse style string.
2272	set tag $dataobj-$comp
2273	set type [$dataobj type $comp]
2274	set style [$dataobj style $comp]
2275	if { $dataobj != $_first } {
2276	set settings(-wireframe) 1
2277	}
2278	if { $type == "glyphs" } {
2279	array set settings {
2280	-color \#808080
2281	-gscale 1
2282	-edges 0
2283	-edgecolor black
2284	-linewidth 1.0
2285	-opacity 1.0
2286	-wireframe 0
2287	-lighting 1
2288	-visible 1
2289	}
2290	set shape [$dataobj shape $comp]
2291	array set settings $style
2292	SendCmd "glyphs add $shape $tag"
2293	SendCmd "glyphs normscale 0 $tag"
2294	SendCmd "glyphs gscale $settings(-gscale) $tag"
2295	SendCmd "glyphs wireframe $settings(-wireframe) $tag"
2296	#SendCmd "glyphs ccolor [Color2RGB $settings(-color)] $tag"
2297	#SendCmd "glyphs colormode ccolor {} $tag"
2298	SendCmd "glyphs gorient 0 {} $tag"
2299	SendCmd "glyphs smode vcomp {} $tag"
2300	SendCmd "glyphs opacity $settings(-opacity) $tag"
2301	SendCmd "glyphs visible $settings(-visible) $tag"
2302	set _settings(glyphs-wireframe) $settings(-wireframe)
2303	set _haveGlyphs 1
2304	} elseif { $type == "molecule" } {
2305	array set settings {
2306	-color \#808080
2307	-gscale 1
2308	-edges 0
2309	-edgecolor black
2310	-linewidth 1.0
2311	-opacity 1.0
2312	-wireframe 0
2313	-lighting 1
2314	-visible 1
2315	}
2316	array set settings $style
2317	SendCmd "molecule add $tag"
2318	SendCmd "molecule opacity $settings(-opacity) $tag"
2319	SendCmd "molecule visible $settings(-visible) $tag"
2320	SendCmd "molecule rscale van_der_waals $tag"
2321	set _settings(molecule-wireframe) $settings(-wireframe)
2322	set _haveMolecules 1
2323	} else {
2324	array set settings {
2325	-color \#6666FF
2326	-edges 1
2327	-edgecolor black
2328	-linewidth 1.0
2329	-opacity 1.0
2330	-wireframe 0
2331	-lighting 1
2332	-visible 1
2333	}
2334	array set settings $style
2335	SendCmd "polydata add $tag"
2336	SendCmd "polydata visible $settings(-visible) $tag"
2337	set _settings(mesh-visible) $settings(-visible)
2338	SendCmd "polydata edges $settings(-edges) $tag"
2339	set _settings(mesh-edges) $settings(-edges)
2340	SendCmd "polydata color [Color2RGB $settings(-color)] $tag"
2341	SendCmd "polydata lighting $settings(-lighting) $tag"
2342	set _settings(mesh-lighting) $settings(-lighting)
2343	SendCmd "polydata linecolor [Color2RGB $settings(-edgecolor)] $tag"
2344	SendCmd "polydata linewidth $settings(-linewidth) $tag"
2345	SendCmd "polydata opacity $settings(-opacity) $tag"
2346	set _settings(mesh-opacity) $settings(-opacity)
2347	SendCmd "polydata wireframe $settings(-wireframe) $tag"
2348	set _settings(mesh-wireframe) $settings(-wireframe)
2349	}
2350	set _settings(mesh-opacity) [expr $settings(-opacity) * 100.0]
2351	SetColormap $dataobj $comp
2352	}
2353
2354	itcl::body Rappture::VtkViewer::IsValidObject { dataobj } {
2355	if {[catch {$dataobj isa Rappture::Drawing} valid] != 0 \|\| !$valid} {
2356	return 0
2357	}
2358	return 1
2359	}
2360
2361	# ----------------------------------------------------------------------
2362	# USAGE: ReceiveLegend <colormap> <title> <vmin> <vmax> <size>
2363	#
2364	# Invoked automatically whenever the "legend" command comes in from
2365	# the rendering server. Indicates that binary image data with the
2366	# specified <size> will follow.
2367	# ----------------------------------------------------------------------
2368	itcl::body Rappture::VtkViewer::ReceiveLegend { colormap title vmin vmax size } {
2369	set _limits(vmin) $vmin
2370	set _limits(vmax) $vmax
2371	set _title $title
2372	if { [IsConnected] } {
2373	set bytes [ReceiveBytes $size]
2374	if { ![info exists _image(legend)] } {
2375	set _image(legend) [image create photo]
2376	}
2377	$_image(legend) configure -data $bytes
2378	DrawLegend
2379	}
2380	}
2381
2382	#
2383	# DrawLegend --
2384	#
2385	# Draws the legend in it's own canvas which resides to the right
2386	# of the contour plot area.
2387	#
2388	itcl::body Rappture::VtkViewer::DrawLegend {} {
2389	set c $itk_component(view)
2390	set w [winfo width $c]
2391	set h [winfo height $c]
2392	set font "Arial 8"
2393	set lineht [font metrics $font -linespace]
2394
2395	if { $_settings(legend) } {
2396	set x [expr $w - 2]
2397	if { [$c find withtag "legend"] == "" } {
2398	$c create image $x [expr {$lineht+2}] \
2399	-anchor ne \
2400	-image $_image(legend) -tags "colormap legend"
2401	$c create text $x 2 \
2402	-anchor ne \
2403	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2404	-font $font
2405	$c create text $x [expr {$h-2}] \
2406	-anchor se \
2407	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2408	-font $font
2409	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2410	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2411	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2412	}
2413	# Reset the item coordinates according the current size of the plot.
2414	$c coords colormap $x [expr {$lineht+2}]
2415	if { $_limits(vmin) != "" } {
2416	$c itemconfigure vmin -text [format %g $_limits(vmin)]
2417	}
2418	if { $_limits(vmax) != "" } {
2419	$c itemconfigure vmax -text [format %g $_limits(vmax)]
2420	}
2421	$c coords vmin $x [expr {$h-2}]
2422	$c coords vmax $x 2
2423	}
2424	}
2425
2426	#
2427	# EnterLegend --
2428	#
2429	itcl::body Rappture::VtkViewer::EnterLegend { x y } {
2430	SetLegendTip $x $y
2431	}
2432
2433	#
2434	# MotionLegend --
2435	#
2436	itcl::body Rappture::VtkViewer::MotionLegend { x y } {
2437	Rappture::Tooltip::tooltip cancel
2438	set c $itk_component(view)
2439	SetLegendTip $x $y
2440	}
2441
2442	#
2443	# LeaveLegend --
2444	#
2445	itcl::body Rappture::VtkViewer::LeaveLegend { } {
2446	Rappture::Tooltip::tooltip cancel
2447	.rappturetooltip configure -icon ""
2448	}
2449
2450	#
2451	# SetLegendTip --
2452	#
2453	itcl::body Rappture::VtkViewer::SetLegendTip { x y } {
2454	set c $itk_component(view)
2455	set w [winfo width $c]
2456	set h [winfo height $c]
2457	set font "Arial 8"
2458	set lineht [font metrics $font -linespace]
2459
2460	set imgHeight [image height $_image(legend)]
2461	set coords [$c coords colormap]
2462	set imgX [expr $w - [image width $_image(legend)] - 2]
2463	set imgY [expr $y - $lineht - 2]
2464
2465	# Make a swatch of the selected color
2466	if { [catch { $_image(legend) get 10 $imgY } pixel] != 0 } {
2467	return
2468	}
2469	if { ![info exists _image(swatch)] } {
2470	set _image(swatch) [image create photo -width 24 -height 24]
2471	}
2472	set color [eval format "\#%02x%02x%02x" $pixel]
2473	$_image(swatch) put black -to 0 0 23 23
2474	$_image(swatch) put $color -to 1 1 22 22
2475	.rappturetooltip configure -icon $_image(swatch)
2476
2477	# Compute the value of the point
2478	set t [expr 1.0 - (double($imgY) / double($imgHeight-1))]
2479	set value [expr $t * ($_limits(vmax) - $_limits(vmin)) + $_limits(vmin)]
2480	set tipx [expr $x + 15]
2481	set tipy [expr $y - 5]
2482	Rappture::Tooltip::text $c "$_title $value"
2483	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2484	}
2485
2486
2487	# ----------------------------------------------------------------------
2488	# USAGE: Slice move x\|y\|z <newval>
2489	#
2490	# Called automatically when the user drags the slider to move the
2491	# cut plane that slices 3D data. Gets the current value from the
2492	# slider and moves the cut plane to the appropriate point in the
2493	# data set.
2494	# ----------------------------------------------------------------------
2495	itcl::body Rappture::VtkViewer::Slice {option args} {
2496	switch -- $option {
2497	"move" {
2498	set axis [lindex $args 0]
2499	set oldval $_axis(${axis}position)
2500	set newval [lindex $args 1]
2501	if {[llength $args] != 2} {
2502	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2503	}
2504	set newpos [expr {0.01*$newval}]
2505	SendCmd "renderer clipplane $axis $newpos -1"
2506	}
2507	"tooltip" {
2508	set axis [lindex $args 0]
2509	set val [$itk_component(${axis}CutScale) get]
2510	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2511	}
2512	default {
2513	error "bad option \"$option\": should be axis, move, or tooltip"
2514	}
2515	}
2516	}
2517

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