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source: trunk/gui/scripts/vtkviewer.tcl @ 3668

Last change on this file since 3668 was 3668, checked in by gah, 11 years ago
fix vtkviewer to add object type on creation
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 parameters {title args} {
62	# do nothing
63	}
64	public method scale {args}
65
66	protected method Connect {}
67	protected method CurrentDatasets {args}
68	protected method Disconnect {}
69	protected method DoResize {}
70	protected method DoRotate {}
71	protected method AdjustSetting {what {value ""}}
72	protected method FixSettings { args }
73	protected method Pan {option x y}
74	protected method Pick {x y}
75	protected method Rebuild {}
76	protected method ReceiveDataset { args }
77	protected method ReceiveImage { args }
78	protected method ReceiveLegend { colormap title vmin vmax size }
79	protected method Rotate {option x y}
80	protected method Zoom {option}
81
82	# The following methods are only used by this class.
83	private method BuildAxisTab {}
84	private method BuildCameraTab {}
85	private method BuildColormap { name styles }
86	private method BuildCutawayTab {}
87	private method BuildDownloadPopup { widget command }
88	private method BuildMeshTab {}
89	private method BuildMoleculeTab {}
90	private method ConvertToVtkData { dataobj comp }
91	private method DrawLegend {}
92	private method EnterLegend { x y }
93	private method EventuallyResize { w h }
94	private method EventuallyRotate { q }
95	private method GetImage { args }
96	private method GetVtkData { args }
97	private method IsValidObject { dataobj }
98	private method LeaveLegend {}
99	private method MotionLegend { x y }
100	private method PanCamera {}
101	private method RequestLegend {}
102	private method SetColormap { dataobj comp }
103	private method ChangeColormap { dataobj comp color }
104	private method SetLegendTip { x y }
105	private method SetObjectStyle { dataobj comp }
106	private method Slice {option args}
107	private method SetOrientation { side }
108
109	private variable _arcball ""
110	private variable _dlist ""; # list of data objects
111	private variable _allDataObjs
112	private variable _obj2datasets
113	private variable _obj2ovride; # maps dataobj => style override
114	private variable _datasets; # contains all the dataobj-component
115	# datasets in the server
116	private variable _colormaps; # contains all the colormaps
117	# in the server.
118	private variable _dataset2style; # maps dataobj-component to transfunc
119	private variable _style2datasets; # maps tf back to list of
120	# dataobj-components using the tf.
121	private variable _click; # info used for rotate operations
122	private variable _limits; # autoscale min/max for all axes
123	private variable _view; # view params for 3D view
124	private variable _settings
125	private variable _style; # Array of current component styles.
126	private variable _initialStyle; # Array of initial component styles.
127	private variable _axis
128	private variable _reset 1; # Indicates that server was reset and
129	# needs to be reinitialized.
130	private variable _haveGlyphs 0
131	private variable _haveMolecules 0
132
133	private variable _first "" ;# This is the topmost dataset.
134	private variable _start 0
135	private variable _title ""
136
137	common _downloadPopup ;# download options from popup
138	private common _hardcopy
139	private variable _width 0
140	private variable _height 0
141	private variable _resizePending 0
142	private variable _rotatePending 0
143	private variable _updatePending 0;
144	private variable _outline
145	}
146
147	itk::usual VtkViewer {
148	keep -background -foreground -cursor -font
149	keep -plotbackground -plotforeground
150	}
151
152	# ----------------------------------------------------------------------
153	# CONSTRUCTOR
154	# ----------------------------------------------------------------------
155	itcl::body Rappture::VtkViewer::constructor {hostlist args} {
156	package require vtk
157	set _serverType "vtkvis"
158
159	# Rebuild event
160	$_dispatcher register !rebuild
161	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
162
163	# Resize event
164	$_dispatcher register !resize
165	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
166
167	# Update state event
168	$_dispatcher register !update
169	$_dispatcher dispatch $this !update "[itcl::code $this DoUpdate]; list"
170
171	# Rotate event
172	$_dispatcher register !rotate
173	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
174
175	#
176	# Populate parser with commands handle incoming requests
177	#
178	$_parser alias image [itcl::code $this ReceiveImage]
179	$_parser alias dataset [itcl::code $this ReceiveDataset]
180	$_parser alias legend [itcl::code $this ReceiveLegend]
181
182	array set _outline {
183	id -1
184	afterId -1
185	x1 -1
186	y1 -1
187	x2 -1
188	y2 -1
189	}
190	# Initialize the view to some default parameters.
191	array set _view {
192	qw 0.853553
193	qx -0.353553
194	qy 0.353553
195	qz 0.146447
196	zoom 1.0
197	xpan 0
198	ypan 0
199	ortho 0
200	}
201	set _arcball [blt::arcball create 100 100]
202	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
203	$_arcball quaternion $q
204
205	set _limits(zmin) 0.0
206	set _limits(zmax) 1.0
207
208	array set _axis [subst {
209	xgrid 0
210	ygrid 0
211	zgrid 0
212	xcutaway 0
213	ycutaway 0
214	zcutaway 0
215	xposition 0
216	yposition 0
217	zposition 0
218	xdirection -1
219	ydirection -1
220	zdirection -1
221	visible 1
222	labels 1
223	}]
224	array set _settings [subst {
225	legend 1
226	molecule-representation "Ball and Stick"
227	molecule-edges 0
228	molecule-labels 0
229	molecule-lighting 1
230	molecule-opacity 100
231	molecule-visible 1
232	molecule-wireframe 0
233	molecule-palette elementDefault
234	mesh-edges 0
235	mesh-lighting 1
236	mesh-opacity 40
237	mesh-visible 1
238	mesh-wireframe 0
239	mesh-palette rainbow
240	}]
241
242	itk_component add view {
243	canvas $itk_component(plotarea).view \
244	-highlightthickness 0 -borderwidth 0
245	} {
246	usual
247	ignore -highlightthickness -borderwidth -background
248	}
249
250	set c $itk_component(view)
251	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
252	bind $c <4> [itcl::code $this Zoom in 0.25]
253	bind $c <5> [itcl::code $this Zoom out 0.25]
254	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
255	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
256	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
257	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
258	bind $c <Enter> "focus %W"
259	bind $c <Control-F1> [itcl::code $this ToggleConsole]
260
261	# Fix the scrollregion in case we go off screen
262	$c configure -scrollregion [$c bbox all]
263
264	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
265	set _map(cwidth) -1
266	set _map(cheight) -1
267	set _map(zoom) 1.0
268	set _map(original) ""
269
270	set f [$itk_component(main) component controls]
271	itk_component add reset {
272	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
273	-highlightthickness 0 \
274	-image [Rappture::icon reset-view] \
275	-command [itcl::code $this Zoom reset]
276	} {
277	usual
278	ignore -highlightthickness
279	}
280	pack $itk_component(reset) -side top -padx 2 -pady 2
281	Rappture::Tooltip::for $itk_component(reset) \
282	"Reset the view to the default zoom level"
283
284	itk_component add zoomin {
285	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
286	-highlightthickness 0 \
287	-image [Rappture::icon zoom-in] \
288	-command [itcl::code $this Zoom in]
289	} {
290	usual
291	ignore -highlightthickness
292	}
293	pack $itk_component(zoomin) -side top -padx 2 -pady 2
294	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
295
296	itk_component add zoomout {
297	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
298	-highlightthickness 0 \
299	-image [Rappture::icon zoom-out] \
300	-command [itcl::code $this Zoom out]
301	} {
302	usual
303	ignore -highlightthickness
304	}
305	pack $itk_component(zoomout) -side top -padx 2 -pady 2
306	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
307
308	if { [catch { BuildMeshTab } errs ] != 0 } {
309	puts stderr "errs=$errs"
310	}
311	if { [catch { BuildMoleculeTab } errs ] != 0 } {
312	global errorInfo
313	puts stderr "errs=$errs\nerrorInfo=$errorInfo"
314	}
315	BuildAxisTab
316	#BuildCutawayTab
317	BuildCameraTab
318
319	# Legend
320
321	set _image(legend) [image create photo]
322	itk_component add legend {
323	canvas $itk_component(plotarea).legend -width 50 -highlightthickness 0
324	} {
325	usual
326	ignore -highlightthickness
327	rename -background -plotbackground plotBackground Background
328	}
329
330	# Hack around the Tk panewindow. The problem is that the requested
331	# size of the 3d view isn't set until an image is retrieved from
332	# the server. So the panewindow uses the tiny size.
333	set w 10000
334	pack forget $itk_component(view)
335	blt::table $itk_component(plotarea) \
336	0,0 $itk_component(view) -fill both -reqwidth $w
337	blt::table configure $itk_component(plotarea) c1 -resize none
338
339	# Bindings for rotation via mouse
340	bind $itk_component(view) <ButtonPress-1> \
341	[itcl::code $this Rotate click %x %y]
342	bind $itk_component(view) <B1-Motion> \
343	[itcl::code $this Rotate drag %x %y]
344	bind $itk_component(view) <ButtonRelease-1> \
345	[itcl::code $this Rotate release %x %y]
346	bind $itk_component(view) <Configure> \
347	[itcl::code $this EventuallyResize %w %h]
348
349	if 0 {
350	bind $itk_component(view) <Configure> \
351	[itcl::code $this EventuallyResize %w %h]
352	}
353	# Bindings for panning via mouse
354	bind $itk_component(view) <ButtonPress-2> \
355	[itcl::code $this Pan click %x %y]
356	bind $itk_component(view) <B2-Motion> \
357	[itcl::code $this Pan drag %x %y]
358	bind $itk_component(view) <ButtonRelease-2> \
359	[itcl::code $this Pan release %x %y]
360
361	#bind $itk_component(view) <ButtonRelease-3> \
362	# [itcl::code $this Pick %x %y]
363
364	# Bindings for panning via keyboard
365	bind $itk_component(view) <KeyPress-Left> \
366	[itcl::code $this Pan set -10 0]
367	bind $itk_component(view) <KeyPress-Right> \
368	[itcl::code $this Pan set 10 0]
369	bind $itk_component(view) <KeyPress-Up> \
370	[itcl::code $this Pan set 0 -10]
371	bind $itk_component(view) <KeyPress-Down> \
372	[itcl::code $this Pan set 0 10]
373	bind $itk_component(view) <Shift-KeyPress-Left> \
374	[itcl::code $this Pan set -2 0]
375	bind $itk_component(view) <Shift-KeyPress-Right> \
376	[itcl::code $this Pan set 2 0]
377	bind $itk_component(view) <Shift-KeyPress-Up> \
378	[itcl::code $this Pan set 0 -2]
379	bind $itk_component(view) <Shift-KeyPress-Down> \
380	[itcl::code $this Pan set 0 2]
381
382	# Bindings for zoom via keyboard
383	bind $itk_component(view) <KeyPress-Prior> \
384	[itcl::code $this Zoom out]
385	bind $itk_component(view) <KeyPress-Next> \
386	[itcl::code $this Zoom in]
387
388	bind $itk_component(view) <Enter> "focus $itk_component(view)"
389
390	if {[string equal "x11" [tk windowingsystem]]} {
391	# Bindings for zoom via mouse
392	bind $itk_component(view) <4> [itcl::code $this Zoom out]
393	bind $itk_component(view) <5> [itcl::code $this Zoom in]
394	}
395
396	set _image(download) [image create photo]
397
398	eval itk_initialize $args
399	Connect
400	}
401
402	# ----------------------------------------------------------------------
403	# DESTRUCTOR
404	# ----------------------------------------------------------------------
405	itcl::body Rappture::VtkViewer::destructor {} {
406	Disconnect
407	$_dispatcher cancel !rebuild
408	$_dispatcher cancel !resize
409	$_dispatcher cancel !rotate
410	image delete $_image(plot)
411	image delete $_image(download)
412	catch { blt::arcball destroy $_arcball }
413	}
414
415	itcl::body Rappture::VtkViewer::DoResize {} {
416	if { $_width < 2 } {
417	set _width 500
418	}
419	if { $_height < 2 } {
420	set _height 500
421	}
422	set _start [clock clicks -milliseconds]
423	SendCmd "screen size $_width $_height"
424
425	set _resizePending 0
426	}
427
428	itcl::body Rappture::VtkViewer::DoRotate {} {
429	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
430	SendCmd "camera orient $q"
431	set _rotatePending 0
432	}
433
434	itcl::body Rappture::VtkViewer::EventuallyResize { w h } {
435	set _width $w
436	set _height $h
437	$_arcball resize $w $h
438	if { !$_resizePending } {
439	set _resizePending 1
440	$_dispatcher event -after 200 !resize
441	}
442	}
443
444	set rotate_delay 150
445
446	itcl::body Rappture::VtkViewer::EventuallyRotate { q } {
447	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
448	if { !$_rotatePending } {
449	set _rotatePending 1
450	global rotate_delay
451	$_dispatcher event -after $rotate_delay !rotate
452	}
453	}
454
455	# ----------------------------------------------------------------------
456	# USAGE: add <dataobj> ?<settings>?
457	#
458	# Clients use this to add a data object to the plot. The optional
459	# <settings> are used to configure the plot. Allowed settings are
460	# -color, -brightness, -width, -linestyle, and -raise.
461	# ----------------------------------------------------------------------
462	itcl::body Rappture::VtkViewer::add {dataobj {settings ""}} {
463	array set params {
464	-color auto
465	-width 1
466	-linestyle solid
467	-brightness 0
468	-raise 0
469	-description ""
470	-param ""
471	-type ""
472	}
473	array set params $settings
474	set params(-description) ""
475	set params(-param) ""
476	foreach {opt val} $settings {
477	if {![info exists params($opt)]} {
478	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
479	}
480	set params($opt) $val
481	}
482	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
483	# can't handle -autocolors yet
484	set params(-color) black
485	}
486	set pos [lsearch -exact $dataobj $_dlist]
487	if {$pos < 0} {
488	lappend _dlist $dataobj
489	}
490	set _allDataObjs($dataobj) 1
491	set _obj2ovride($dataobj-color) $params(-color)
492	set _obj2ovride($dataobj-width) $params(-width)
493	set _obj2ovride($dataobj-raise) $params(-raise)
494	$_dispatcher event -idle !rebuild
495	}
496
497
498	# ----------------------------------------------------------------------
499	# USAGE: delete ?<dataobj1> <dataobj2> ...?
500	#
501	# Clients use this to delete a dataobj from the plot. If no dataobjs
502	# are specified, then all dataobjs are deleted. No data objects are
503	# deleted. They are only removed from the display list.
504	#
505	# ----------------------------------------------------------------------
506	itcl::body Rappture::VtkViewer::delete {args} {
507	if { [llength $args] == 0} {
508	set args $_dlist
509	}
510	# Delete all specified dataobjs
511	set changed 0
512	foreach dataobj $args {
513	set pos [lsearch -exact $_dlist $dataobj]
514	if { $pos < 0 } {
515	continue; # Don't know anything about it.
516	}
517	# Remove it from the dataobj list.
518	set _dlist [lreplace $_dlist $pos $pos]
519	foreach comp [$dataobj components] {
520	SendCmd "dataset visible 0 $dataobj-$comp"
521	}
522	array unset _obj2ovride $dataobj-*
523	# Append to the end of the dataobj list.
524	lappend _dlist $dataobj
525	set changed 1
526	}
527	# If anything changed, then rebuild the plot
528	if { $changed } {
529	$_dispatcher event -idle !rebuild
530	}
531	}
532
533	# ----------------------------------------------------------------------
534	# USAGE: get ?-objects?
535	# USAGE: get ?-visible?
536	# USAGE: get ?-image view?
537	#
538	# Clients use this to query the list of objects being plotted, in
539	# order from bottom to top of this result. The optional "-image"
540	# flag can also request the internal images being shown.
541	# ----------------------------------------------------------------------
542	itcl::body Rappture::VtkViewer::get {args} {
543	if {[llength $args] == 0} {
544	set args "-objects"
545	}
546
547	set op [lindex $args 0]
548	switch -- $op {
549	"-objects" {
550	# put the dataobj list in order according to -raise options
551	set dlist {}
552	foreach dataobj $_dlist {
553	if { ![IsValidObject $dataobj] } {
554	continue
555	}
556	if {[info exists _obj2ovride($dataobj-raise)] &&
557	$_obj2ovride($dataobj-raise)} {
558	set dlist [linsert $dlist 0 $dataobj]
559	} else {
560	lappend dlist $dataobj
561	}
562	}
563	return $dlist
564	}
565	"-visible" {
566	set dlist {}
567	foreach dataobj $_dlist {
568	if { ![IsValidObject $dataobj] } {
569	continue
570	}
571	if { ![info exists _obj2ovride($dataobj-raise)] } {
572	# No setting indicates that the object isn't invisible.
573	continue
574	}
575	# Otherwise use the -raise parameter to put the object to
576	# the front of the list.
577	if { $_obj2ovride($dataobj-raise) } {
578	set dlist [linsert $dlist 0 $dataobj]
579	} else {
580	lappend dlist $dataobj
581	}
582	}
583	return $dlist
584	}
585	-image {
586	if {[llength $args] != 2} {
587	error "wrong # args: should be \"get -image view\""
588	}
589	switch -- [lindex $args end] {
590	view {
591	return $_image(plot)
592	}
593	default {
594	error "bad image name \"[lindex $args end]\": should be view"
595	}
596	}
597	}
598	default {
599	error "bad option \"$op\": should be -objects or -image"
600	}
601	}
602	}
603
604	# ----------------------------------------------------------------------
605	# USAGE: scale ?<data1> <data2> ...?
606	#
607	# Sets the default limits for the overall plot according to the
608	# limits of the data for all of the given <data> objects. This
609	# accounts for all objects--even those not showing on the screen.
610	# Because of this, the limits are appropriate for all objects as
611	# the user scans through data in the ResultSet viewer.
612	# ----------------------------------------------------------------------
613	itcl::body Rappture::VtkViewer::scale {args} {
614	foreach dataobj $args {
615	array set bounds [limits $dataobj]
616	if {![info exists _limits(xmin)] \|\| $_limits(xmin) > $bounds(xmin)} {
617	set _limits(xmin) $bounds(xmin)
618	}
619	if {![info exists _limits(xmax)] \|\| $_limits(xmax) < $bounds(xmax)} {
620	set _limits(xmax) $bounds(xmax)
621	}
622
623	if {![info exists _limits(ymin)] \|\| $_limits(ymin) > $bounds(ymin)} {
624	set _limits(ymin) $bounds(ymin)
625	}
626	if {![info exists _limits(ymax)] \|\| $_limits(ymax) < $bounds(ymax)} {
627	set _limits(ymax) $bounds(ymax)
628	}
629
630	if {![info exists _limits(zmin)] \|\| $_limits(zmin) > $bounds(zmin)} {
631	set _limits(zmin) $bounds(zmin)
632	}
633	if {![info exists _limits(zmax)] \|\| $_limits(zmax) < $bounds(zmax)} {
634	set _limits(zmax) $bounds(zmax)
635	}
636	}
637	}
638
639	# ----------------------------------------------------------------------
640	# USAGE: download coming
641	# USAGE: download controls <downloadCommand>
642	# USAGE: download now
643	#
644	# Clients use this method to create a downloadable representation
645	# of the plot. Returns a list of the form {ext string}, where
646	# "ext" is the file extension (indicating the type of data) and
647	# "string" is the data itself.
648	# ----------------------------------------------------------------------
649	itcl::body Rappture::VtkViewer::download {option args} {
650	switch $option {
651	coming {
652	if {[catch {
653	blt::winop snap $itk_component(plotarea) $_image(download)
654	}]} {
655	$_image(download) configure -width 1 -height 1
656	$_image(download) put #000000
657	}
658	}
659	controls {
660	set popup .vtkviewerdownload
661	if { ![winfo exists .vtkviewerdownload] } {
662	set inner [BuildDownloadPopup $popup [lindex $args 0]]
663	} else {
664	set inner [$popup component inner]
665	}
666	set _downloadPopup(image_controls) $inner.image_frame
667	set num [llength [get]]
668	set num [expr {($num == 1) ? "1 result" : "$num results"}]
669	set word [Rappture::filexfer::label downloadWord]
670	$inner.summary configure -text "$word $num in the following format:"
671	update idletasks ;# Fix initial sizes
672	return $popup
673	}
674	now {
675	set popup .vtkviewerdownload
676	if {[winfo exists .vtkviewerdownload]} {
677	$popup deactivate
678	}
679	switch -- $_downloadPopup(format) {
680	"image" {
681	return [$this GetImage [lindex $args 0]]
682	}
683	"vtk" {
684	return [$this GetVtkData [lindex $args 0]]
685	}
686	}
687	return ""
688	}
689	default {
690	error "bad option \"$option\": should be coming, controls, now"
691	}
692	}
693	}
694
695	# ----------------------------------------------------------------------
696	# USAGE: Connect ?<host:port>,<host:port>...?
697	#
698	# Clients use this method to establish a connection to a new
699	# server, or to reestablish a connection to the previous server.
700	# Any existing connection is automatically closed.
701	# ----------------------------------------------------------------------
702	itcl::body Rappture::VtkViewer::Connect {} {
703	global readyForNextFrame
704	set readyForNextFrame 1
705	set _hosts [GetServerList "vtkvis"]
706	if { "" == $_hosts } {
707	return 0
708	}
709	set result [VisViewer::Connect $_hosts]
710	if { $result } {
711	if { $_reportClientInfo } {
712	# Tell the server the viewer, hub, user and session.
713	# Do this immediately on connect before buffing any commands
714	global env
715
716	set info {}
717	set user "???"
718	if { [info exists env(USER)] } {
719	set user $env(USER)
720	}
721	set session "???"
722	if { [info exists env(SESSION)] } {
723	set session $env(SESSION)
724	}
725	lappend info "hub" [exec hostname]
726	lappend info "client" "vtkviewer"
727	lappend info "user" $user
728	lappend info "session" $session
729	SendCmd "clientinfo [list $info]"
730	}
731
732	set w [winfo width $itk_component(view)]
733	set h [winfo height $itk_component(view)]
734	EventuallyResize $w $h
735	}
736	return $result
737	}
738
739	#
740	# isconnected --
741	#
742	# Indicates if we are currently connected to the visualization server.
743	#
744	itcl::body Rappture::VtkViewer::isconnected {} {
745	return [VisViewer::IsConnected]
746	}
747
748	#
749	# disconnect --
750	#
751	itcl::body Rappture::VtkViewer::disconnect {} {
752	Disconnect
753	set _reset 1
754	}
755
756	#
757	# Disconnect --
758	#
759	# Clients use this method to disconnect from the current rendering
760	# server.
761	#
762	itcl::body Rappture::VtkViewer::Disconnect {} {
763	VisViewer::Disconnect
764
765	# disconnected -- no more data sitting on server
766	array unset _datasets
767	array unset _data
768	array unset _colormaps
769	global readyForNextFrame
770	set readyForNextFrame 1
771	}
772
773	# ----------------------------------------------------------------------
774	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
775	#
776	# Invoked automatically whenever the "image" command comes in from
777	# the rendering server. Indicates that binary image data with the
778	# specified <size> will follow.
779	# ----------------------------------------------------------------------
780	itcl::body Rappture::VtkViewer::ReceiveImage { args } {
781	global readyForNextFrame
782	set readyForNextFrame 1
783	array set info {
784	-token "???"
785	-bytes 0
786	-type image
787	}
788	array set info $args
789	set bytes [ReceiveBytes $info(-bytes)]
790	if { $info(-type) == "image" } {
791	if 0 {
792	set f [open "last.ppm" "w"]
793	puts $f $bytes
794	close $f
795	}
796	$_image(plot) configure -data $bytes
797	set time [clock seconds]
798	set date [clock format $time]
799	if { $_start > 0 } {
800	set finish [clock clicks -milliseconds]
801	set _start 0
802	}
803	} elseif { $info(type) == "print" } {
804	set tag $this-print-$info(-token)
805	set _hardcopy($tag) $bytes
806	}
807	}
808
809	#
810	# ReceiveDataset --
811	#
812	itcl::body Rappture::VtkViewer::ReceiveDataset { args } {
813	if { ![isconnected] } {
814	return
815	}
816	set option [lindex $args 0]
817	switch -- $option {
818	"scalar" {
819	set option [lindex $args 1]
820	switch -- $option {
821	"world" {
822	foreach { x y z value tag } [lrange $args 2 end] break
823	}
824	"pixel" {
825	foreach { x y value tag } [lrange $args 2 end] break
826	}
827	}
828	}
829	"vector" {
830	set option [lindex $args 1]
831	switch -- $option {
832	"world" {
833	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
834	}
835	"pixel" {
836	foreach { x y vx vy vz tag } [lrange $args 2 end] break
837	}
838	}
839	}
840	"names" {
841	foreach { name } [lindex $args 1] {
842	#puts stderr "Dataset: $name"
843	}
844	}
845	default {
846	error "unknown dataset option \"$option\" from server"
847	}
848	}
849	}
850
851	# ----------------------------------------------------------------------
852	# USAGE: Rebuild
853	#
854	# Called automatically whenever something changes that affects the
855	# data in the widget. Clears any existing data and rebuilds the
856	# widget to display new data.
857	# ----------------------------------------------------------------------
858	itcl::body Rappture::VtkViewer::Rebuild {} {
859
860	set w [winfo width $itk_component(view)]
861	set h [winfo height $itk_component(view)]
862	if { $w < 2 \|\| $h < 2 } {
863	$_dispatcher event -idle !rebuild
864	return
865	}
866
867	# Turn on buffering of commands to the server. We don't want to
868	# be preempted by a server disconnect/reconnect (which automatically
869	# generates a new call to Rebuild).
870	StartBufferingCommands
871
872	if { $_reset } {
873	set _width $w
874	set _height $h
875	$_arcball resize $w $h
876	DoResize
877	FixSettings axis-xgrid axis-ygrid axis-zgrid axis-mode \
878	axis-visible axis-labels \
879	mesh-edges mesh-lighting mesh-opacity mesh-visible \
880	mesh-wireframe
881	SendCmd "imgflush"
882	}
883
884	set _limits(zmin) ""
885	set _limits(zmax) ""
886	set _first ""
887	SendCmd "dataset visible 0"
888	SendCmd "molecule visible 0"
889	set count 0
890	foreach dataobj [get -objects] {
891	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
892	set _first $dataobj
893	}
894	set _obj2datasets($dataobj) ""
895	foreach comp [$dataobj components] {
896	set tag $dataobj-$comp
897	if { ![info exists _datasets($tag)] } {
898	set bytes [$dataobj data $comp]
899	if { $bytes == "" } {
900	continue
901	}
902	set length [string length $bytes]
903	if { $_reportClientInfo } {
904	set info {}
905	lappend info "tool_id" [$dataobj hints toolId]
906	lappend info "tool_name" [$dataobj hints toolName]
907	lappend info "tool_version" [$dataobj hints toolRevision]
908	lappend info "tool_title" [$dataobj hints toolTitle]
909	lappend info "dataset_label" [$dataobj hints label]
910	lappend info "dataset_size" $length
911	lappend info "dataset_tag" $tag
912	SendCmd [list "clientinfo" $info]
913	}
914	SendCmd "dataset add $tag data follows $length"
915	append _outbuf $bytes
916	set _datasets($tag) 1
917	switch -- [$dataobj type $comp] {
918	"polygon" {
919	SendCmd "polydata add $tag"
920	}
921	"glyphs" {
922	set shape [$dataobj shape $comp]
923	SendCmd "glyphs add $shape $tag"
924	}
925	"molecule" {
926	SendCmd "molecule add $tag"
927	}
928	}
929	}
930	lappend _obj2datasets($dataobj) $tag
931	if { [info exists _obj2ovride($dataobj-raise)] } {
932	SendCmd "dataset visible 1 $tag"
933	puts stderr "$count: dataset visible 1 $tag"
934	}
935	SetObjectStyle $dataobj $comp
936	}
937	}
938	if {"" != $_first} {
939	set location [$_first hints camera]
940	if { $location != "" } {
941	array set view $location
942	}
943
944	foreach axis { x y z } {
945	set label [$_first hints ${axis}label]
946	if { $label != "" } {
947	SendCmd "axis name $axis $label"
948	}
949	set units [$_first hints ${axis}units]
950	if { $units != "" } {
951	SendCmd "axis units $axis $units"
952	}
953	}
954	}
955	if { $_reset } {
956	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
957	$_arcball quaternion $q
958	SendCmd "camera reset"
959	if { $_view(ortho)} {
960	SendCmd "camera mode ortho"
961	} else {
962	SendCmd "camera mode persp"
963	}
964	DoRotate
965	PanCamera
966	Zoom reset
967	}
968	FixSettings molecule-representation
969
970	SendCmd "dataset maprange visible"
971
972	set _reset 0
973	global readyForNextFrame
974	set readyForNextFrame 0; # Don't advance to the next frame
975	# until we get an image.
976
977	# Actually write the commands to the server socket. If it fails, we don't
978	# care. We're finished here.
979	blt::busy hold $itk_component(hull)
980	StopBufferingCommands
981	blt::busy release $itk_component(hull)
982	}
983
984	# ----------------------------------------------------------------------
985	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
986	#
987	# Returns a list of server IDs for the current datasets being displayed. This
988	# is normally a single ID, but it might be a list of IDs if the current data
989	# object has multiple components.
990	# ----------------------------------------------------------------------
991	itcl::body Rappture::VtkViewer::CurrentDatasets {args} {
992	set flag [lindex $args 0]
993	switch -- $flag {
994	"-all" {
995	if { [llength $args] > 1 } {
996	error "CurrentDatasets: can't specify dataobj after \"-all\""
997	}
998	set dlist [get -objects]
999	}
1000	"-visible" {
1001	if { [llength $args] > 1 } {
1002	set dlist {}
1003	set args [lrange $args 1 end]
1004	foreach dataobj $args {
1005	if { [info exists _obj2ovride($dataobj-raise)] } {
1006	lappend dlist $dataobj
1007	}
1008	}
1009	} else {
1010	set dlist [get -visible]
1011	}
1012	}
1013	default {
1014	set dlist $args
1015	}
1016	}
1017	set rlist ""
1018	foreach dataobj $dlist {
1019	foreach comp [$dataobj components] {
1020	set tag $dataobj-$comp
1021	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1022	lappend rlist $tag
1023	}
1024	}
1025	}
1026	return $rlist
1027	}
1028
1029	# ----------------------------------------------------------------------
1030	# USAGE: Zoom in
1031	# USAGE: Zoom out
1032	# USAGE: Zoom reset
1033	#
1034	# Called automatically when the user clicks on one of the zoom
1035	# controls for this widget. Changes the zoom for the current view.
1036	# ----------------------------------------------------------------------
1037	itcl::body Rappture::VtkViewer::Zoom {option} {
1038	switch -- $option {
1039	"in" {
1040	set _view(zoom) [expr {$_view(zoom)*1.25}]
1041	SendCmd "camera zoom $_view(zoom)"
1042	}
1043	"out" {
1044	set _view(zoom) [expr {$_view(zoom)*0.8}]
1045	SendCmd "camera zoom $_view(zoom)"
1046	}
1047	"reset" {
1048	array set _view {
1049	qw 0.853553
1050	qx -0.353553
1051	qy 0.353553
1052	qz 0.146447
1053	zoom 1.0
1054	xpan 0
1055	ypan 0
1056	}
1057	if { $_first != "" } {
1058	set location [$_first hints camera]
1059	if { $location != "" } {
1060	array set _view $location
1061	}
1062	}
1063	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1064	$_arcball quaternion $q
1065	DoRotate
1066	SendCmd "camera reset"
1067	}
1068	}
1069	}
1070
1071	itcl::body Rappture::VtkViewer::PanCamera {} {
1072	set x $_view(xpan)
1073	set y $_view(ypan)
1074	SendCmd "camera pan $x $y"
1075	}
1076
1077
1078	# ----------------------------------------------------------------------
1079	# USAGE: Rotate click <x> <y>
1080	# USAGE: Rotate drag <x> <y>
1081	# USAGE: Rotate release <x> <y>
1082	#
1083	# Called automatically when the user clicks/drags/releases in the
1084	# plot area. Moves the plot according to the user's actions.
1085	# ----------------------------------------------------------------------
1086	itcl::body Rappture::VtkViewer::Rotate {option x y} {
1087	switch -- $option {
1088	"click" {
1089	$itk_component(view) configure -cursor fleur
1090	set _click(x) $x
1091	set _click(y) $y
1092	}
1093	"drag" {
1094	if {[array size _click] == 0} {
1095	Rotate click $x $y
1096	} else {
1097	set w [winfo width $itk_component(view)]
1098	set h [winfo height $itk_component(view)]
1099	if {$w <= 0 \|\| $h <= 0} {
1100	return
1101	}
1102
1103	if {[catch {
1104	# this fails sometimes for no apparent reason
1105	set dx [expr {double($x-$_click(x))/$w}]
1106	set dy [expr {double($y-$_click(y))/$h}]
1107	}]} {
1108	return
1109	}
1110	if { $dx == 0 && $dy == 0 } {
1111	return
1112	}
1113	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1114	EventuallyRotate $q
1115	set _click(x) $x
1116	set _click(y) $y
1117	}
1118	}
1119	"release" {
1120	Rotate drag $x $y
1121	$itk_component(view) configure -cursor ""
1122	catch {unset _click}
1123	}
1124	default {
1125	error "bad option \"$option\": should be click, drag, release"
1126	}
1127	}
1128	}
1129
1130	itcl::body Rappture::VtkViewer::Pick {x y} {
1131	foreach tag [CurrentDatasets -visible] {
1132	SendCmd "dataset getscalar pixel $x $y $tag"
1133	}
1134	}
1135
1136	# ----------------------------------------------------------------------
1137	# USAGE: $this Pan click x y
1138	# $this Pan drag x y
1139	# $this Pan release x y
1140	#
1141	# Called automatically when the user clicks on one of the zoom
1142	# controls for this widget. Changes the zoom for the current view.
1143	# ----------------------------------------------------------------------
1144	itcl::body Rappture::VtkViewer::Pan {option x y} {
1145	switch -- $option {
1146	"set" {
1147	set w [winfo width $itk_component(view)]
1148	set h [winfo height $itk_component(view)]
1149	set x [expr $x / double($w)]
1150	set y [expr $y / double($h)]
1151	set _view(xpan) [expr $_view(xpan) + $x]
1152	set _view(ypan) [expr $_view(ypan) + $y]
1153	PanCamera
1154	return
1155	}
1156	"click" {
1157	set _click(x) $x
1158	set _click(y) $y
1159	$itk_component(view) configure -cursor hand1
1160	}
1161	"drag" {
1162	if { ![info exists _click(x)] } {
1163	set _click(x) $x
1164	}
1165	if { ![info exists _click(y)] } {
1166	set _click(y) $y
1167	}
1168	set w [winfo width $itk_component(view)]
1169	set h [winfo height $itk_component(view)]
1170	set dx [expr ($_click(x) - $x)/double($w)]
1171	set dy [expr ($_click(y) - $y)/double($h)]
1172	set _click(x) $x
1173	set _click(y) $y
1174	set _view(xpan) [expr $_view(xpan) - $dx]
1175	set _view(ypan) [expr $_view(ypan) - $dy]
1176	PanCamera
1177	}
1178	"release" {
1179	Pan drag $x $y
1180	$itk_component(view) configure -cursor ""
1181	}
1182	default {
1183	error "unknown option \"$option\": should set, click, drag, or release"
1184	}
1185	}
1186	}
1187
1188	# ----------------------------------------------------------------------
1189	# USAGE: FixSettings <what> ?<value>?
1190	#
1191	# Used internally to update rendering settings whenever parameters
1192	# change in the popup settings panel. Sends the new settings off
1193	# to the back end.
1194	# ----------------------------------------------------------------------
1195	itcl::body Rappture::VtkViewer::FixSettings { args } {
1196	foreach setting $args {
1197	AdjustSetting $setting
1198	}
1199	}
1200
1201	#
1202	# AdjustSetting --
1203	#
1204	# Changes/updates a specific setting in the widget. There are
1205	# usually user-setable option. Commands are sent to the render
1206	# server.
1207	#
1208	itcl::body Rappture::VtkViewer::AdjustSetting {what {value ""}} {
1209	if { ![isconnected] } {
1210	return
1211	}
1212	switch -- $what {
1213	"mesh-opacity" {
1214	set val $_settings(mesh-opacity)
1215	set sval [expr { 0.01 * double($val) }]
1216	foreach dataset [CurrentDatasets -visible $_first] {
1217	foreach { dataobj comp } [split $dataset -] break
1218	set type [$dataobj type $comp]
1219	if { $type == "polydata" } {
1220	SendCmd "$type opacity $sval $dataset"
1221	}
1222	}
1223	}
1224	"mesh-wireframe" {
1225	set bool $_settings(mesh-wireframe)
1226	foreach dataset [CurrentDatasets -visible $_first] {
1227	foreach { dataobj comp } [split $dataset -] break
1228	set type [$dataobj type $comp]
1229	if { $type == "polydata" } {
1230	SendCmd "$type wireframe $bool $dataset"
1231	}
1232	}
1233	}
1234	"mesh-visible" {
1235	set bool $_settings(mesh-visible)
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 visible $bool $dataset"
1241	}
1242	}
1243	}
1244	"mesh-lighting" {
1245	set bool $_settings(mesh-lighting)
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 lighting $bool $dataset"
1251	}
1252	}
1253	}
1254	"mesh-edges" {
1255	set bool $_settings(mesh-edges)
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 edges $bool $dataset"
1261	}
1262	}
1263	}
1264	"mesh-palette" {
1265	set palette [$itk_component(meshpalette) value]
1266	set _settings(mesh-palette) $palette
1267	foreach dataset [CurrentDatasets -visible $_first] {
1268	foreach {dataobj comp} [split $dataset -] break
1269	set type [$dataobj type $comp]
1270	if { $type == "polydata" } {
1271	ChangeColormap $dataobj $comp $palette
1272	}
1273	}
1274	set _legendPending 1
1275	}
1276	"molecule-opacity" {
1277	set val $_settings(molecule-opacity)
1278	set sval [expr { 0.01 * double($val) }]
1279	foreach dataset [CurrentDatasets -visible $_first] {
1280	foreach { dataobj comp } [split $dataset -] break
1281	set type [$dataobj type $comp]
1282	if { $type == "molecule" } {
1283	SendCmd "molecule opacity $sval $dataset"
1284	}
1285	}
1286	}
1287	"molecule-wireframe" {
1288	set bool $_settings(molecule-wireframe)
1289	foreach dataset [CurrentDatasets -visible $_first] {
1290	foreach { dataobj comp } [split $dataset -] break
1291	set type [$dataobj type $comp]
1292	if { $type == "molecule" } {
1293	SendCmd "molecule wireframe $bool $dataset"
1294	}
1295	}
1296	}
1297	"molecule-visible" {
1298	set bool $_settings(molecule-visible)
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 visible $bool $dataset"
1304	}
1305	}
1306	}
1307	"molecule-lighting" {
1308	set bool $_settings(molecule-lighting)
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 lighting $bool $dataset"
1314	}
1315	}
1316	}
1317	"molecule-edges" {
1318	set bool $_settings(molecule-edges)
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 edges $bool $dataset"
1324	}
1325	}
1326	}
1327	"molecule-palette" {
1328	set palette [$itk_component(moleculepalette) value]
1329	set _settings(molecule-palette) $palette
1330	foreach dataset [CurrentDatasets -visible $_first] {
1331	foreach {dataobj comp} [split $dataset -] break
1332	set type [$dataobj type $comp]
1333	if { $type == "molecule" } {
1334	ChangeColormap $dataobj $comp $palette
1335	if { $palette == "elementDefault" } {
1336	SendCmd "molecule colormode by_elements element $dataset"
1337	} else {
1338	# FIXME: Set the chosen scalar field name here
1339	SendCmd "molecule colormode scalar {} $dataset"
1340	}
1341	}
1342	}
1343	set _legendPending 1
1344	}
1345	"molecule-representation" {
1346	set value [$itk_component(representation) value]
1347	set value [$itk_component(representation) translate $value]
1348	switch -- $value {
1349	"ballandstick" {
1350	set rscale covalent
1351	set ashow 1
1352	set bshow 1
1353	set bstyle cylinder
1354	set ascale 0.3
1355	set bscale 0.075
1356	}
1357	"balls" - "spheres" {
1358	set rscale covalent
1359	set ashow 1
1360	set bshow 0
1361	set bstyle cylinder
1362	set ascale 0.3
1363	set bscale 0.075
1364	}
1365	"sticks" {
1366	set rscale none
1367	set ashow 1
1368	set bshow 1
1369	set bstyle cylinder
1370	set ascale 0.075
1371	set bscale 0.075
1372	}
1373	"spacefilling" {
1374	set rscale van_der_waals
1375	set ashow 1
1376	set bshow 0
1377	set bstyle cylinder
1378	set ascale 1.0
1379	set bscale 0.075
1380	}
1381	"rods" {
1382	set rscale none
1383	set ashow 1
1384	set bshow 1
1385	set bstyle cylinder
1386	set ascale 0.1
1387	set bscale 0.1
1388	}
1389	"wireframe" - "lines" {
1390	set rscale none
1391	set ashow 0
1392	set bshow 1
1393	set bstyle line
1394	set ascale 1.0
1395	set bscale 1.0
1396	}
1397	default {
1398	error "unknown representation $value"
1399	}
1400	}
1401	foreach dataset [CurrentDatasets -visible $_first] {
1402	foreach {dataobj comp} [split $dataset -] break
1403	set type [$dataobj type $comp]
1404	if { $type == "molecule" } {
1405	SendCmd [subst {molecule rscale $rscale $dataset
1406	molecule atoms $ashow $dataset
1407	molecule bonds $bshow $dataset
1408	molecule bstyle $bstyle $dataset
1409	molecule ascale $ascale $dataset
1410	molecule bscale $bscale $dataset}]
1411	}
1412	}
1413	}
1414	"molecule-labels" {
1415	set bool $_settings(molecule-labels)
1416	foreach dataset [CurrentDatasets -visible $_first] {
1417	foreach { dataobj comp } [split $dataset -] break
1418	set type [$dataobj type $comp]
1419	if { $type == "molecule" } {
1420	SendCmd "molecule labels $bool $dataset"
1421	}
1422	}
1423	}
1424	"axis-visible" {
1425	set bool $_axis(visible)
1426	SendCmd "axis visible all $bool"
1427	}
1428	"axis-labels" {
1429	set bool $_axis(labels)
1430	SendCmd "axis labels all $bool"
1431	}
1432	"axis-xgrid" {
1433	set bool $_axis(xgrid)
1434	SendCmd "axis grid x $bool"
1435	}
1436	"axis-ygrid" {
1437	set bool $_axis(ygrid)
1438	SendCmd "axis grid y $bool"
1439	}
1440	"axis-zgrid" {
1441	set bool $_axis(zgrid)
1442	SendCmd "axis grid z $bool"
1443	}
1444	"axis-mode" {
1445	set mode [$itk_component(axismode) value]
1446	set mode [$itk_component(axismode) translate $mode]
1447	SendCmd "axis flymode $mode"
1448	}
1449	"axis-xcutaway" - "axis-ycutaway" - "axis-zcutaway" {
1450	set axis [string range $what 5 5]
1451	set bool $_axis(${axis}cutaway)
1452	if { $bool } {
1453	set pos [expr $_axis(${axis}position) * 0.01]
1454	set dir $_axis(${axis}direction)
1455	$itk_component(${axis}CutScale) configure -state normal \
1456	-troughcolor white
1457	SendCmd "renderer clipplane $axis $pos $dir"
1458	} else {
1459	$itk_component(${axis}CutScale) configure -state disabled \
1460	-troughcolor grey82
1461	SendCmd "renderer clipplane $axis 1 -1"
1462	}
1463	}
1464	"axis-xposition" - "axis-yposition" - "axis-zposition" -
1465	"axis-xdirection" - "axis-ydirection" - "axis-zdirection" {
1466	set axis [string range $what 5 5]
1467	#set dir $_axis(${axis}direction)
1468	set pos [expr $_axis(${axis}position) * 0.01]
1469	SendCmd "renderer clipplane ${axis} $pos -1"
1470	}
1471	default {
1472	error "don't know how to fix $what"
1473	}
1474	}
1475	}
1476
1477	#
1478	# RequestLegend --
1479	#
1480	# Request a new legend from the server. The size of the legend
1481	# is determined from the height of the canvas. It will be rotated
1482	# to be vertical when drawn.
1483	#
1484	itcl::body Rappture::VtkViewer::RequestLegend {} {
1485	set font "Arial 8"
1486	set lineht [font metrics $font -linespace]
1487	set c $itk_component(legend)
1488	set w 12
1489	set h [expr {$_height - 2 * ($lineht + 2)}]
1490	if { $h < 1} {
1491	return
1492	}
1493	# Set the legend on the first dataset.
1494	foreach dataset [CurrentDatasets -visible] {
1495	foreach {dataobj comp} [split $dataset -] break
1496	if { [info exists _dataset2style($dataset)] } {
1497	SendCmd "legend $_dataset2style($dataset) vmag {} {} $w $h 0"
1498	break;
1499	}
1500	}
1501	}
1502
1503	#
1504	# ChangeColormap --
1505	#
1506	itcl::body Rappture::VtkViewer::ChangeColormap {dataobj comp color} {
1507	set tag $dataobj-$comp
1508	if { ![info exist _style($tag)] } {
1509	error "no initial colormap"
1510	}
1511	array set style $_style($tag)
1512	set style(-color) $color
1513	set _style($tag) [array get style]
1514	SetColormap $dataobj $comp
1515	}
1516
1517	#
1518	# SetColormap --
1519	#
1520	itcl::body Rappture::VtkViewer::SetColormap { dataobj comp } {
1521	array set style {
1522	-color BCGYR
1523	-levels 6
1524	-opacity 1.0
1525	}
1526	if {[$dataobj type $comp] == "molecule"} {
1527	set style(-color) elementDefault
1528	}
1529	set tag $dataobj-$comp
1530	if { ![info exists _initialStyle($tag)] } {
1531	# Save the initial component style.
1532	set _initialStyle($tag) [$dataobj style $comp]
1533	}
1534
1535	# Override defaults with initial style defined in xml.
1536	array set style $_initialStyle($tag)
1537
1538	if { ![info exists _style($tag)] } {
1539	set _style($tag) [array get style]
1540	}
1541	# Override initial style with current style.
1542	array set style $_style($tag)
1543
1544	if { $style(-color) == "elementDefault" } {
1545	set name "$style(-color)"
1546	} else {
1547	set name "$style(-color):$style(-levels):$style(-opacity)"
1548	}
1549	if { ![info exists _colormaps($name)] } {
1550	BuildColormap $name [array get style]
1551	set _colormaps($name) 1
1552	}
1553	if { ![info exists _dataset2style($tag)] \|\|
1554	$_dataset2style($tag) != $name } {
1555	set _dataset2style($tag) $name
1556	switch -- [$dataobj type $comp] {
1557	"polygon" {
1558	SendCmd "pseudocolor colormap $name $tag"
1559	}
1560	"glyphs" {
1561	SendCmd "glyphs colormap $name $tag"
1562	}
1563	"molecule" {
1564	SendCmd "molecule colormap $name $tag"
1565	}
1566	}
1567	}
1568	}
1569
1570	#
1571	# BuildColormap --
1572	#
1573	itcl::body Rappture::VtkViewer::BuildColormap { name styles } {
1574	if { $name == "elementDefault" } {
1575	return
1576	}
1577	array set style $styles
1578	set cmap [ColorsToColormap $style(-color)]
1579	if { [llength $cmap] == 0 } {
1580	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1581	}
1582	if { ![info exists _settings(mesh-opacity)] } {
1583	set _settings(mesh-opacity) $style(-opacity)
1584	}
1585	set max $_settings(mesh-opacity)
1586
1587	set wmap "0.0 1.0 1.0 1.0"
1588	SendCmd "colormap add $name { $cmap } { $wmap }"
1589	}
1590
1591
1592	# ----------------------------------------------------------------------
1593	# CONFIGURATION OPTION: -plotbackground
1594	# ----------------------------------------------------------------------
1595	itcl::configbody Rappture::VtkViewer::plotbackground {
1596	if { [isconnected] } {
1597	foreach {r g b} [Color2RGB $itk_option(-plotbackground)] break
1598	SendCmd "screen bgcolor $r $g $b"
1599	}
1600	}
1601
1602	# ----------------------------------------------------------------------
1603	# CONFIGURATION OPTION: -plotforeground
1604	# ----------------------------------------------------------------------
1605	itcl::configbody Rappture::VtkViewer::plotforeground {
1606	if { [isconnected] } {
1607	foreach {r g b} [Color2RGB $itk_option(-plotforeground)] break
1608	#fix this!
1609	#SendCmd "color background $r $g $b"
1610	}
1611	}
1612
1613	itcl::body Rappture::VtkViewer::limits { dataobj } {
1614	puts stderr components=[$dataobj components]
1615	foreach comp [$dataobj components] {
1616	set tag $dataobj-$comp
1617	if { ![info exists _limits($tag)] } {
1618	set data [$dataobj data $comp]
1619	if { $data == "" } {
1620	continue
1621	}
1622	set tmpfile file[pid].vtk
1623	set f [open "$tmpfile" "w"]
1624	fconfigure $f -translation binary -encoding binary
1625	puts $f $data
1626	close $f
1627	set reader [vtkDataSetReader $tag-xvtkDataSetReader]
1628	$reader SetFileName $tmpfile
1629	$reader ReadAllNormalsOn
1630	$reader ReadAllScalarsOn
1631	$reader ReadAllVectorsOn
1632	$reader ReadAllFieldsOn
1633	$reader Update
1634	set output [$reader GetOutput]
1635	set _limits($tag) [$output GetBounds]
1636	set pointData [$output GetPointData]
1637	set fieldData [$output GetFieldData]
1638	if 1 {
1639	puts stderr "\#scalars=[$reader GetNumberOfScalarsInFile]"
1640	puts stderr "\#vectors=[$reader GetNumberOfVectorsInFile]"
1641	puts stderr "\#tensors=[$reader GetNumberOfTensorsInFile]"
1642	puts stderr "\#normals=[$reader GetNumberOfNormalsInFile]"
1643	puts stderr "\#fielddata=[$reader GetNumberOfFieldDataInFile]"
1644	puts stderr "fielddataname=[$reader GetFieldDataNameInFile 0]"
1645	puts stderr "field \#arrays=[$fieldData GetNumberOfArrays]"
1646	puts stderr "point \#arrays=[$pointData GetNumberOfArrays]"
1647	puts stderr "field \#components=[$fieldData GetNumberOfComponents]"
1648	puts stderr "point \#components=[$pointData GetNumberOfComponents]"
1649	puts stderr "field \#tuples=[$fieldData GetNumberOfTuples]"
1650	puts stderr "point \#tuples=[$pointData GetNumberOfTuples]"
1651	puts stderr "point \#scalars=[$pointData GetScalars]"
1652	puts stderr vectors=[$pointData GetVectors]
1653	}
1654	rename $output ""
1655	rename $reader ""
1656	file delete $tmpfile
1657	}
1658	foreach { xMin xMax yMin yMax zMin zMax} $_limits($tag) break
1659	if {![info exists limits(xmin)] \|\| $limits(xmin) > $xMin} {
1660	set limits(xmin) $xMin
1661	}
1662	if {![info exists limits(xmax)] \|\| $limits(xmax) < $xMax} {
1663	set limits(xmax) $xMax
1664	}
1665	if {![info exists limits(ymin)] \|\| $limits(ymin) > $yMin} {
1666	set limits(ymin) $xMin
1667	}
1668	if {![info exists limits(ymax)] \|\| $limits(ymax) < $yMax} {
1669	set limits(ymax) $yMax
1670	}
1671	if {![info exists limits(zmin)] \|\| $limits(zmin) > $zMin} {
1672	set limits(zmin) $zMin
1673	}
1674	if {![info exists limits(zmax)] \|\| $limits(zmax) < $zMax} {
1675	set limits(zmax) $zMax
1676	}
1677	}
1678	return [array get limits]
1679	}
1680
1681	itcl::body Rappture::VtkViewer::BuildMeshTab {} {
1682
1683	set fg [option get $itk_component(hull) font Font]
1684	#set bfg [option get $itk_component(hull) boldFont Font]
1685
1686	set inner [$itk_component(main) insert end \
1687	-title "Mesh Settings" \
1688	-icon [Rappture::icon mesh]]
1689	$inner configure -borderwidth 4
1690
1691	checkbutton $inner.mesh \
1692	-text "Show Mesh" \
1693	-variable [itcl::scope _settings(mesh-visible)] \
1694	-command [itcl::code $this AdjustSetting mesh-visible] \
1695	-font "Arial 9" -anchor w
1696
1697	checkbutton $inner.wireframe \
1698	-text "Show Wireframe" \
1699	-variable [itcl::scope _settings(mesh-wireframe)] \
1700	-command [itcl::code $this AdjustSetting mesh-wireframe] \
1701	-font "Arial 9" -anchor w
1702
1703	checkbutton $inner.lighting \
1704	-text "Enable Lighting" \
1705	-variable [itcl::scope _settings(mesh-lighting)] \
1706	-command [itcl::code $this AdjustSetting mesh-lighting] \
1707	-font "Arial 9" -anchor w
1708
1709	checkbutton $inner.edges \
1710	-text "Show Edges" \
1711	-variable [itcl::scope _settings(mesh-edges)] \
1712	-command [itcl::code $this AdjustSetting mesh-edges] \
1713	-font "Arial 9" -anchor w
1714
1715	label $inner.palette_l -text "Palette" -font "Arial 9" -anchor w
1716	itk_component add meshpalette {
1717	Rappture::Combobox $inner.palette -width 10 -editable no
1718	}
1719	$inner.palette choices insert end \
1720	"BCGYR" "BCGYR" \
1721	"BGYOR" "BGYOR" \
1722	"blue" "blue" \
1723	"blue-to-brown" "blue-to-brown" \
1724	"blue-to-orange" "blue-to-orange" \
1725	"blue-to-grey" "blue-to-grey" \
1726	"green-to-magenta" "green-to-magenta" \
1727	"greyscale" "greyscale" \
1728	"nanohub" "nanohub" \
1729	"rainbow" "rainbow" \
1730	"spectral" "spectral" \
1731	"ROYGB" "ROYGB" \
1732	"RYGCB" "RYGCB" \
1733	"brown-to-blue" "brown-to-blue" \
1734	"grey-to-blue" "grey-to-blue" \
1735	"orange-to-blue" "orange-to-blue"
1736
1737	$itk_component(meshpalette) value "BCGYR"
1738	bind $inner.palette <<Value>> \
1739	[itcl::code $this AdjustSetting mesh-palette]
1740
1741	label $inner.opacity_l -text "Opacity" -font "Arial 9" -anchor w
1742	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1743	-variable [itcl::scope _settings(mesh-opacity)] \
1744	-width 10 \
1745	-showvalue off \
1746	-command [itcl::code $this AdjustSetting mesh-opacity]
1747
1748	blt::table $inner \
1749	0,0 $inner.mesh -cspan 2 -anchor w -pady 2 \
1750	1,0 $inner.wireframe -cspan 2 -anchor w -pady 2 \
1751	2,0 $inner.lighting -cspan 2 -anchor w -pady 2 \
1752	3,0 $inner.edges -cspan 2 -anchor w -pady 2 \
1753	4,0 $inner.opacity_l -anchor w -pady 2 \
1754	4,1 $inner.opacity -fill x -pady 2 \
1755	5,0 $inner.palette_l -anchor w -pady 2 \
1756	5,1 $inner.palette -fill x -pady 2
1757
1758	blt::table configure $inner r* c* -resize none
1759	blt::table configure $inner r7 c1 -resize expand
1760	}
1761
1762	itcl::body Rappture::VtkViewer::BuildAxisTab {} {
1763
1764	set fg [option get $itk_component(hull) font Font]
1765	#set bfg [option get $itk_component(hull) boldFont Font]
1766
1767	set inner [$itk_component(main) insert end \
1768	-title "Axis Settings" \
1769	-icon [Rappture::icon axis1]]
1770	$inner configure -borderwidth 4
1771
1772	checkbutton $inner.visible \
1773	-text "Show Axes" \
1774	-variable [itcl::scope _axis(visible)] \
1775	-command [itcl::code $this AdjustSetting axis-visible] \
1776	-font "Arial 9"
1777
1778	checkbutton $inner.labels \
1779	-text "Show Axis Labels" \
1780	-variable [itcl::scope _axis(labels)] \
1781	-command [itcl::code $this AdjustSetting axis-labels] \
1782	-font "Arial 9"
1783
1784	checkbutton $inner.gridx \
1785	-text "Show X Grid" \
1786	-variable [itcl::scope _axis(xgrid)] \
1787	-command [itcl::code $this AdjustSetting axis-xgrid] \
1788	-font "Arial 9"
1789	checkbutton $inner.gridy \
1790	-text "Show Y Grid" \
1791	-variable [itcl::scope _axis(ygrid)] \
1792	-command [itcl::code $this AdjustSetting axis-ygrid] \
1793	-font "Arial 9"
1794	checkbutton $inner.gridz \
1795	-text "Show Z Grid" \
1796	-variable [itcl::scope _axis(zgrid)] \
1797	-command [itcl::code $this AdjustSetting axis-zgrid] \
1798	-font "Arial 9"
1799
1800	label $inner.mode_l -text "Mode" -font "Arial 9"
1801
1802	itk_component add axismode {
1803	Rappture::Combobox $inner.mode -width 10 -editable no
1804	}
1805	$inner.mode choices insert end \
1806	"static_triad" "static" \
1807	"closest_triad" "closest" \
1808	"furthest_triad" "furthest" \
1809	"outer_edges" "outer"
1810	$itk_component(axismode) value "static"
1811	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axis-mode]
1812
1813	blt::table $inner \
1814	0,0 $inner.visible -anchor w -cspan 2 \
1815	1,0 $inner.labels -anchor w -cspan 2 \
1816	2,0 $inner.gridx -anchor w -cspan 2 \
1817	3,0 $inner.gridy -anchor w -cspan 2 \
1818	4,0 $inner.gridz -anchor w -cspan 2 \
1819	5,0 $inner.mode_l -anchor w -cspan 2 -padx { 2 0 } \
1820	6,0 $inner.mode -fill x -cspan 2
1821
1822	blt::table configure $inner r* c* -resize none
1823	blt::table configure $inner r7 c1 -resize expand
1824	}
1825
1826
1827	itcl::body Rappture::VtkViewer::BuildCameraTab {} {
1828	set inner [$itk_component(main) insert end \
1829	-title "Camera Settings" \
1830	-icon [Rappture::icon camera]]
1831	$inner configure -borderwidth 4
1832
1833	label $inner.view_l -text "view" -font "Arial 9"
1834	set f [frame $inner.view]
1835	foreach side { front back left right top bottom } {
1836	button $f.$side -image [Rappture::icon view$side] \
1837	-command [itcl::code $this SetOrientation $side]
1838	Rappture::Tooltip::for $f.$side "Change the view to $side"
1839	pack $f.$side -side left
1840	}
1841
1842	blt::table $inner \
1843	0,0 $inner.view_l -anchor e -pady 2 \
1844	0,1 $inner.view -anchor w -pady 2
1845
1846	set labels { qx qy qz qw xpan ypan zoom }
1847	set row 1
1848	foreach tag $labels {
1849	label $inner.${tag}label -text $tag -font "Arial 9"
1850	entry $inner.${tag} -font "Arial 9" -bg white \
1851	-textvariable [itcl::scope _view($tag)]
1852	bind $inner.${tag} <KeyPress-Return> \
1853	[itcl::code $this camera set ${tag}]
1854	blt::table $inner \
1855	$row,0 $inner.${tag}label -anchor e -pady 2 \
1856	$row,1 $inner.${tag} -anchor w -pady 2
1857	blt::table configure $inner r$row -resize none
1858	incr row
1859	}
1860	checkbutton $inner.ortho \
1861	-text "Orthographic Projection" \
1862	-variable [itcl::scope _view(ortho)] \
1863	-command [itcl::code $this camera set ortho] \
1864	-font "Arial 9"
1865	blt::table $inner \
1866	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
1867	blt::table configure $inner r$row -resize none
1868	incr row
1869
1870	blt::table configure $inner c* r* -resize none
1871	blt::table configure $inner c2 -resize expand
1872	blt::table configure $inner r$row -resize expand
1873	}
1874
1875	itcl::body Rappture::VtkViewer::BuildCutawayTab {} {
1876
1877	set fg [option get $itk_component(hull) font Font]
1878
1879	set inner [$itk_component(main) insert end \
1880	-title "Cutaway Along Axis" \
1881	-icon [Rappture::icon cutbutton]]
1882
1883	$inner configure -borderwidth 4
1884
1885	# X-value slicer...
1886	itk_component add xCutButton {
1887	Rappture::PushButton $inner.xbutton \
1888	-onimage [Rappture::icon x-cutplane] \
1889	-offimage [Rappture::icon x-cutplane] \
1890	-command [itcl::code $this AdjustSetting axis-xcutaway] \
1891	-variable [itcl::scope _axis(xcutaway)]
1892	}
1893	Rappture::Tooltip::for $itk_component(xCutButton) \
1894	"Toggle the X-axis cutaway on/off"
1895
1896	itk_component add xCutScale {
1897	::scale $inner.xval -from 100 -to 0 \
1898	-width 10 -orient vertical -showvalue yes \
1899	-borderwidth 1 -highlightthickness 0 \
1900	-command [itcl::code $this Slice move x] \
1901	-variable [itcl::scope _axis(xposition)]
1902	} {
1903	usual
1904	ignore -borderwidth -highlightthickness
1905	}
1906	# Set the default cutaway value before disabling the scale.
1907	$itk_component(xCutScale) set 100
1908	$itk_component(xCutScale) configure -state disabled
1909	Rappture::Tooltip::for $itk_component(xCutScale) \
1910	"@[itcl::code $this Slice tooltip x]"
1911
1912	itk_component add xDirButton {
1913	Rappture::PushButton $inner.xdir \
1914	-onimage [Rappture::icon arrow-down] \
1915	-onvalue -1 \
1916	-offimage [Rappture::icon arrow-up] \
1917	-offvalue 1 \
1918	-command [itcl::code $this AdjustSetting axis-xdirection] \
1919	-variable [itcl::scope _axis(xdirection)]
1920	}
1921	set _axis(xdirection) -1
1922	Rappture::Tooltip::for $itk_component(xDirButton) \
1923	"Toggle the direction of the X-axis cutaway"
1924
1925	# Y-value slicer...
1926	itk_component add yCutButton {
1927	Rappture::PushButton $inner.ybutton \
1928	-onimage [Rappture::icon y-cutplane] \
1929	-offimage [Rappture::icon y-cutplane] \
1930	-command [itcl::code $this AdjustSetting axis-ycutaway] \
1931	-variable [itcl::scope _axis(ycutaway)]
1932	}
1933	Rappture::Tooltip::for $itk_component(yCutButton) \
1934	"Toggle the Y-axis cutaway on/off"
1935
1936	itk_component add yCutScale {
1937	::scale $inner.yval -from 100 -to 0 \
1938	-width 10 -orient vertical -showvalue yes \
1939	-borderwidth 1 -highlightthickness 0 \
1940	-command [itcl::code $this Slice move y] \
1941	-variable [itcl::scope _axis(yposition)]
1942	} {
1943	usual
1944	ignore -borderwidth -highlightthickness
1945	}
1946	Rappture::Tooltip::for $itk_component(yCutScale) \
1947	"@[itcl::code $this Slice tooltip y]"
1948	# Set the default cutaway value before disabling the scale.
1949	$itk_component(yCutScale) set 100
1950	$itk_component(yCutScale) configure -state disabled
1951
1952	itk_component add yDirButton {
1953	Rappture::PushButton $inner.ydir \
1954	-onimage [Rappture::icon arrow-down] \
1955	-onvalue -1 \
1956	-offimage [Rappture::icon arrow-up] \
1957	-offvalue 1 \
1958	-command [itcl::code $this AdjustSetting axis-ydirection] \
1959	-variable [itcl::scope _axis(ydirection)]
1960	}
1961	Rappture::Tooltip::for $itk_component(yDirButton) \
1962	"Toggle the direction of the Y-axis cutaway"
1963	set _axis(ydirection) -1
1964
1965	# Z-value slicer...
1966	itk_component add zCutButton {
1967	Rappture::PushButton $inner.zbutton \
1968	-onimage [Rappture::icon z-cutplane] \
1969	-offimage [Rappture::icon z-cutplane] \
1970	-command [itcl::code $this AdjustSetting axis-zcutaway] \
1971	-variable [itcl::scope _axis(zcutaway)]
1972	}
1973	Rappture::Tooltip::for $itk_component(zCutButton) \
1974	"Toggle the Z-axis cutaway on/off"
1975
1976	itk_component add zCutScale {
1977	::scale $inner.zval -from 100 -to 0 \
1978	-width 10 -orient vertical -showvalue yes \
1979	-borderwidth 1 -highlightthickness 0 \
1980	-command [itcl::code $this Slice move z] \
1981	-variable [itcl::scope _axis(zposition)]
1982	} {
1983	usual
1984	ignore -borderwidth -highlightthickness
1985	}
1986	$itk_component(zCutScale) set 100
1987	$itk_component(zCutScale) configure -state disabled
1988	#$itk_component(zCutScale) configure -state disabled
1989	Rappture::Tooltip::for $itk_component(zCutScale) \
1990	"@[itcl::code $this Slice tooltip z]"
1991
1992	itk_component add zDirButton {
1993	Rappture::PushButton $inner.zdir \
1994	-onimage [Rappture::icon arrow-down] \
1995	-onvalue -1 \
1996	-offimage [Rappture::icon arrow-up] \
1997	-offvalue 1 \
1998	-command [itcl::code $this AdjustSetting axis-zdirection] \
1999	-variable [itcl::scope _axis(zdirection)]
2000	}
2001	set _axis(zdirection) -1
2002	Rappture::Tooltip::for $itk_component(zDirButton) \
2003	"Toggle the direction of the Z-axis cutaway"
2004
2005	blt::table $inner \
2006	0,0 $itk_component(xCutButton) -anchor e -padx 2 -pady 2 \
2007	1,0 $itk_component(xCutScale) -fill y \
2008	0,1 $itk_component(yCutButton) -anchor e -padx 2 -pady 2 \
2009	1,1 $itk_component(yCutScale) -fill y \
2010	0,2 $itk_component(zCutButton) -anchor e -padx 2 -pady 2 \
2011	1,2 $itk_component(zCutScale) -fill y \
2012
2013	blt::table configure $inner r* c* -resize none
2014	blt::table configure $inner r1 c3 -resize expand
2015	}
2016
2017	itcl::body Rappture::VtkViewer::BuildMoleculeTab {} {
2018	set fg [option get $itk_component(hull) font Font]
2019
2020	set inner [$itk_component(main) insert end \
2021	-title "Molecule Settings" \
2022	-icon [Rappture::icon molecule]]
2023	$inner configure -borderwidth 4
2024
2025	checkbutton $inner.molecule \
2026	-text "Show Molecule" \
2027	-variable [itcl::scope _settings(molecule-visible)] \
2028	-command [itcl::code $this AdjustSetting molecule-visible] \
2029	-font "Arial 9"
2030
2031	checkbutton $inner.label \
2032	-text "Show Atom Labels" \
2033	-variable [itcl::scope _settings(molecule-labels)] \
2034	-command [itcl::code $this AdjustSetting molecule-labels] \
2035	-font "Arial 9"
2036
2037	checkbutton $inner.wireframe \
2038	-text "Show Wireframe" \
2039	-variable [itcl::scope _settings(molecule-wireframe)] \
2040	-command [itcl::code $this AdjustSetting molecule-wireframe] \
2041	-font "Arial 9"
2042
2043	checkbutton $inner.lighting \
2044	-text "Enable Lighting" \
2045	-variable [itcl::scope _settings(molecule-lighting)] \
2046	-command [itcl::code $this AdjustSetting molecule-lighting] \
2047	-font "Arial 9"
2048
2049	checkbutton $inner.edges \
2050	-text "Show Edges" \
2051	-variable [itcl::scope _settings(molecule-edges)] \
2052	-command [itcl::code $this AdjustSetting molecule-edges] \
2053	-font "Arial 9"
2054
2055	label $inner.rep_l -text "Molecule Representation" \
2056	-font "Arial 9"
2057
2058	itk_component add representation {
2059	Rappture::Combobox $inner.rep -width 20 -editable no
2060	}
2061	$inner.rep choices insert end \
2062	"ballandstick" "Ball and Stick" \
2063	"spheres" "Spheres" \
2064	"sticks" "Sticks" \
2065	"rods" "Rods" \
2066	"wireframe" "Wireframe" \
2067	"spacefilling" "Space Filling"
2068
2069	bind $inner.rep <<Value>> \
2070	[itcl::code $this AdjustSetting molecule-representation]
2071	$inner.rep value "Ball and Stick"
2072
2073	label $inner.palette_l -text "Palette" -font "Arial 9"
2074	itk_component add moleculepalette {
2075	Rappture::Combobox $inner.palette -width 10 -editable no
2076	}
2077	$inner.palette choices insert end \
2078	"elementDefault" "elementDefault" \
2079	"BCGYR" "BCGYR" \
2080	"BGYOR" "BGYOR" \
2081	"blue" "blue" \
2082	"blue-to-brown" "blue-to-brown" \
2083	"blue-to-orange" "blue-to-orange" \
2084	"blue-to-grey" "blue-to-grey" \
2085	"green-to-magenta" "green-to-magenta" \
2086	"greyscale" "greyscale" \
2087	"nanohub" "nanohub" \
2088	"rainbow" "rainbow" \
2089	"spectral" "spectral" \
2090	"ROYGB" "ROYGB" \
2091	"RYGCB" "RYGCB" \
2092	"brown-to-blue" "brown-to-blue" \
2093	"grey-to-blue" "grey-to-blue" \
2094	"orange-to-blue" "orange-to-blue"
2095
2096	$itk_component(moleculepalette) value "elementDefault"
2097	bind $inner.palette <<Value>> \
2098	[itcl::code $this AdjustSetting molecule-palette]
2099
2100	checkbutton $inner.labels -text "Show labels on atoms" \
2101	-command [itcl::code $this labels update] \
2102	-variable [itcl::scope _settings(molecule-labels)] \
2103	-font "Arial 9"
2104	Rappture::Tooltip::for $inner.labels \
2105	"Display atom symbol and serial number."
2106
2107	checkbutton $inner.rock -text "Rock molecule back and forth" \
2108	-variable [itcl::scope _settings(molecule-rock)] \
2109	-font "Arial 9"
2110	Rappture::Tooltip::for $inner.rock \
2111	"Rotate the object back and forth around the y-axis."
2112
2113	checkbutton $inner.cell -text "Parallelepiped" \
2114	-font "Arial 9"
2115	$inner.cell select
2116
2117	label $inner.opacity_l -text "Opacity" -font "Arial 9"
2118	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
2119	-variable [itcl::scope _settings(molecule-opacity)] \
2120	-width 10 \
2121	-showvalue off \
2122	-command [itcl::code $this AdjustSetting molecule-opacity]
2123
2124	blt::table $inner \
2125	0,0 $inner.molecule -anchor w -pady {1 0} \
2126	1,0 $inner.label -anchor w -pady {1 0} \
2127	2,0 $inner.edges -anchor w -pady {1 0} \
2128	3,0 $inner.rep_l -anchor w -pady { 2 0 } \
2129	4,0 $inner.rep -anchor w \
2130	5,0 $inner.palette_l -anchor w -pady 2 \
2131	6,0 $inner.palette -fill x -pady 2 \
2132	7,0 $inner.opacity_l -anchor w -pady 2 \
2133	8,0 $inner.opacity -fill x -pady 2
2134
2135	blt::table configure $inner r* -resize none
2136	blt::table configure $inner r9 -resize expand
2137	}
2138
2139	#
2140	# camera --
2141	#
2142	itcl::body Rappture::VtkViewer::camera {option args} {
2143	switch -- $option {
2144	"show" {
2145	puts [array get _view]
2146	}
2147	"set" {
2148	set who [lindex $args 0]
2149	set x $_view($who)
2150	set code [catch { string is double $x } result]
2151	if { $code != 0 \|\| !$result } {
2152	return
2153	}
2154	switch -- $who {
2155	"ortho" {
2156	if {$_view(ortho)} {
2157	SendCmd "camera mode ortho"
2158	} else {
2159	SendCmd "camera mode persp"
2160	}
2161	}
2162	"xpan" - "ypan" {
2163	PanCamera
2164	}
2165	"qx" - "qy" - "qz" - "qw" {
2166	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2167	$_arcball quaternion $q
2168	EventuallyRotate $q
2169	}
2170	"zoom" {
2171	SendCmd "camera zoom $_view(zoom)"
2172	}
2173	}
2174	}
2175	}
2176	}
2177
2178	itcl::body Rappture::VtkViewer::ConvertToVtkData { dataobj comp } {
2179	foreach { x1 x2 xN y1 y2 yN } [$dataobj mesh $comp] break
2180	set values [$dataobj values $comp]
2181	append out "# vtk DataFile Version 2.0 \n"
2182	append out "Test data \n"
2183	append out "ASCII \n"
2184	append out "DATASET STRUCTURED_POINTS \n"
2185	append out "DIMENSIONS $xN $yN 1 \n"
2186	append out "ORIGIN 0 0 0 \n"
2187	append out "SPACING 1 1 1 \n"
2188	append out "POINT_DATA [expr $xN * $yN] \n"
2189	append out "SCALARS field double 1 \n"
2190	append out "LOOKUP_TABLE default \n"
2191	append out [join $values "\n"]
2192	append out "\n"
2193	return $out
2194	}
2195
2196
2197	itcl::body Rappture::VtkViewer::GetVtkData { args } {
2198	set bytes ""
2199	foreach dataobj [get] {
2200	foreach comp [$dataobj components] {
2201	set tag $dataobj-$comp
2202	set contents [$dataobj data $comp]
2203	append bytes "$contents\n"
2204	append bytes "\# End of VTK file\n\n"
2205	}
2206	}
2207	return [list .txt $bytes]
2208	}
2209
2210	itcl::body Rappture::VtkViewer::GetImage { args } {
2211	if { [image width $_image(download)] > 0 &&
2212	[image height $_image(download)] > 0 } {
2213	set bytes [$_image(download) data -format "jpeg -quality 100"]
2214	set bytes [Rappture::encoding::decode -as b64 $bytes]
2215	return [list .jpg $bytes]
2216	}
2217	return ""
2218	}
2219
2220	itcl::body Rappture::VtkViewer::BuildDownloadPopup { popup command } {
2221	Rappture::Balloon $popup \
2222	-title "[Rappture::filexfer::label downloadWord] as..."
2223	set inner [$popup component inner]
2224	label $inner.summary -text "" -anchor w
2225	radiobutton $inner.vtk_button -text "VTK data file" \
2226	-variable [itcl::scope _downloadPopup(format)] \
2227	-font "Helvetica 9 " \
2228	-value vtk
2229	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2230	radiobutton $inner.image_button -text "Image File" \
2231	-variable [itcl::scope _downloadPopup(format)] \
2232	-value image
2233	Rappture::Tooltip::for $inner.image_button \
2234	"Save as digital image."
2235
2236	button $inner.ok -text "Save" \
2237	-highlightthickness 0 -pady 2 -padx 3 \
2238	-command $command \
2239	-compound left \
2240	-image [Rappture::icon download]
2241
2242	button $inner.cancel -text "Cancel" \
2243	-highlightthickness 0 -pady 2 -padx 3 \
2244	-command [list $popup deactivate] \
2245	-compound left \
2246	-image [Rappture::icon cancel]
2247
2248	blt::table $inner \
2249	0,0 $inner.summary -cspan 2 \
2250	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2251	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2252	4,1 $inner.cancel -width .9i -fill y \
2253	4,0 $inner.ok -padx 2 -width .9i -fill y
2254	blt::table configure $inner r3 -height 4
2255	blt::table configure $inner r4 -pady 4
2256	raise $inner.image_button
2257	$inner.vtk_button invoke
2258	return $inner
2259	}
2260
2261	itcl::body Rappture::VtkViewer::SetObjectStyle { dataobj comp } {
2262	# Parse style string.
2263	set tag $dataobj-$comp
2264	set type [$dataobj type $comp]
2265	set style [$dataobj style $comp]
2266	if { $dataobj != $_first } {
2267	set settings(-wireframe) 1
2268	}
2269	if { $type == "glyphs" } {
2270	array set settings {
2271	-color \#808080
2272	-gscale 1
2273	-edges 0
2274	-edgecolor black
2275	-linewidth 1.0
2276	-opacity 1.0
2277	-wireframe 0
2278	-lighting 1
2279	-visible 1
2280	}
2281	set shape [$dataobj shape $comp]
2282	array set settings $style
2283	SendCmd "glyphs normscale 0 $tag"
2284	SendCmd "glyphs gscale $settings(-gscale) $tag"
2285	SendCmd "glyphs wireframe $settings(-wireframe) $tag"
2286	#SendCmd "glyphs ccolor [Color2RGB $settings(-color)] $tag"
2287	#SendCmd "glyphs colormode ccolor {} $tag"
2288	SendCmd "glyphs gorient 0 {} $tag"
2289	SendCmd "glyphs smode vcomp {} $tag"
2290	SendCmd "glyphs opacity $settings(-opacity) $tag"
2291	SendCmd "glyphs visible $settings(-visible) $tag"
2292	set _settings(glyphs-wireframe) $settings(-wireframe)
2293	set _haveGlyphs 1
2294	} elseif { $type == "molecule" } {
2295	SendCmd "molecule rscale van_der_waals $tag"
2296	set _haveMolecules 1
2297	} else {
2298	array set settings {
2299	-color \#6666FF
2300	-edges 1
2301	-edgecolor black
2302	-linewidth 1.0
2303	-opacity 1.0
2304	-wireframe 0
2305	-lighting 1
2306	-visible 1
2307	}
2308	array set settings $style
2309	SendCmd "polydata visible $settings(-visible) $tag"
2310	set _settings(mesh-visible) $settings(-visible)
2311	SendCmd "polydata edges $settings(-edges) $tag"
2312	set _settings(mesh-edges) $settings(-edges)
2313	SendCmd "polydata color [Color2RGB $settings(-color)] $tag"
2314	SendCmd "polydata lighting $settings(-lighting) $tag"
2315	set _settings(mesh-lighting) $settings(-lighting)
2316	SendCmd "polydata linecolor [Color2RGB $settings(-edgecolor)] $tag"
2317	SendCmd "polydata linewidth $settings(-linewidth) $tag"
2318	SendCmd "polydata opacity $settings(-opacity) $tag"
2319	set _settings(mesh-opacity) $settings(-opacity)
2320	SendCmd "polydata wireframe $settings(-wireframe) $tag"
2321	set _settings(mesh-wireframe) $settings(-wireframe)
2322	}
2323	SetColormap $dataobj $comp
2324	}
2325
2326	itcl::body Rappture::VtkViewer::IsValidObject { dataobj } {
2327	if {[catch {$dataobj isa Rappture::Drawing} valid] != 0 \|\| !$valid} {
2328	return 0
2329	}
2330	return 1
2331	}
2332
2333	# ----------------------------------------------------------------------
2334	# USAGE: ReceiveLegend <colormap> <title> <vmin> <vmax> <size>
2335	#
2336	# Invoked automatically whenever the "legend" command comes in from
2337	# the rendering server. Indicates that binary image data with the
2338	# specified <size> will follow.
2339	# ----------------------------------------------------------------------
2340	itcl::body Rappture::VtkViewer::ReceiveLegend { colormap title vmin vmax size } {
2341	set _limits(vmin) $vmin
2342	set _limits(vmax) $vmax
2343	set _title $title
2344	if { [IsConnected] } {
2345	set bytes [ReceiveBytes $size]
2346	if { ![info exists _image(legend)] } {
2347	set _image(legend) [image create photo]
2348	}
2349	$_image(legend) configure -data $bytes
2350	DrawLegend
2351	}
2352	}
2353
2354	#
2355	# DrawLegend --
2356	#
2357	# Draws the legend in it's own canvas which resides to the right
2358	# of the contour plot area.
2359	#
2360	itcl::body Rappture::VtkViewer::DrawLegend {} {
2361	set c $itk_component(view)
2362	set w [winfo width $c]
2363	set h [winfo height $c]
2364	set font "Arial 8"
2365	set lineht [font metrics $font -linespace]
2366
2367	if { $_settings(legend) } {
2368	set x [expr $w - 2]
2369	if { [$c find withtag "legend"] == "" } {
2370	$c create image $x [expr {$lineht+2}] \
2371	-anchor ne \
2372	-image $_image(legend) -tags "colormap legend"
2373	$c create text $x 2 \
2374	-anchor ne \
2375	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2376	-font $font
2377	$c create text $x [expr {$h-2}] \
2378	-anchor se \
2379	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2380	-font $font
2381	#$c bind colormap <Enter> [itcl::code $this EnterLegend %x %y]
2382	$c bind colormap <Leave> [itcl::code $this LeaveLegend]
2383	$c bind colormap <Motion> [itcl::code $this MotionLegend %x %y]
2384	}
2385	# Reset the item coordinates according the current size of the plot.
2386	$c coords colormap $x [expr {$lineht+2}]
2387	if { $_limits(vmin) != "" } {
2388	$c itemconfigure vmin -text [format %g $_limits(vmin)]
2389	}
2390	if { $_limits(vmax) != "" } {
2391	$c itemconfigure vmax -text [format %g $_limits(vmax)]
2392	}
2393	$c coords vmin $x [expr {$h-2}]
2394	$c coords vmax $x 2
2395	}
2396	}
2397
2398	#
2399	# EnterLegend --
2400	#
2401	itcl::body Rappture::VtkViewer::EnterLegend { x y } {
2402	SetLegendTip $x $y
2403	}
2404
2405	#
2406	# MotionLegend --
2407	#
2408	itcl::body Rappture::VtkViewer::MotionLegend { x y } {
2409	Rappture::Tooltip::tooltip cancel
2410	set c $itk_component(view)
2411	SetLegendTip $x $y
2412	}
2413
2414	#
2415	# LeaveLegend --
2416	#
2417	itcl::body Rappture::VtkViewer::LeaveLegend { } {
2418	Rappture::Tooltip::tooltip cancel
2419	.rappturetooltip configure -icon ""
2420	}
2421
2422	#
2423	# SetLegendTip --
2424	#
2425	itcl::body Rappture::VtkViewer::SetLegendTip { x y } {
2426	set c $itk_component(view)
2427	set w [winfo width $c]
2428	set h [winfo height $c]
2429	set font "Arial 8"
2430	set lineht [font metrics $font -linespace]
2431
2432	set imgHeight [image height $_image(legend)]
2433	set coords [$c coords colormap]
2434	set imgX [expr $w - [image width $_image(legend)] - 2]
2435	set imgY [expr $y - $lineht - 2]
2436
2437	# Make a swatch of the selected color
2438	if { [catch { $_image(legend) get 10 $imgY } pixel] != 0 } {
2439	return
2440	}
2441	if { ![info exists _image(swatch)] } {
2442	set _image(swatch) [image create photo -width 24 -height 24]
2443	}
2444	set color [eval format "\#%02x%02x%02x" $pixel]
2445	$_image(swatch) put black -to 0 0 23 23
2446	$_image(swatch) put $color -to 1 1 22 22
2447	.rappturetooltip configure -icon $_image(swatch)
2448
2449	# Compute the value of the point
2450	set t [expr 1.0 - (double($imgY) / double($imgHeight-1))]
2451	set value [expr $t * ($_limits(vmax) - $_limits(vmin)) + $_limits(vmin)]
2452	set tipx [expr $x + 15]
2453	set tipy [expr $y - 5]
2454	Rappture::Tooltip::text $c "$_title $value"
2455	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2456	}
2457
2458
2459	# ----------------------------------------------------------------------
2460	# USAGE: Slice move x\|y\|z <newval>
2461	#
2462	# Called automatically when the user drags the slider to move the
2463	# cut plane that slices 3D data. Gets the current value from the
2464	# slider and moves the cut plane to the appropriate point in the
2465	# data set.
2466	# ----------------------------------------------------------------------
2467	itcl::body Rappture::VtkViewer::Slice {option args} {
2468	switch -- $option {
2469	"move" {
2470	set axis [lindex $args 0]
2471	set oldval $_axis(${axis}position)
2472	set newval [lindex $args 1]
2473	if {[llength $args] != 2} {
2474	error "wrong # args: should be \"Slice move x\|y\|z newval\""
2475	}
2476	set newpos [expr {0.01*$newval}]
2477	SendCmd "renderer clipplane $axis $newpos -1"
2478	}
2479	"tooltip" {
2480	set axis [lindex $args 0]
2481	set val [$itk_component(${axis}CutScale) get]
2482	return "Move the [string toupper $axis] cut plane.\nCurrently: $axis = $val%"
2483	}
2484	default {
2485	error "bad option \"$option\": should be axis, move, or tooltip"
2486	}
2487	}
2488	}
2489
2490	itcl::body Rappture::VtkViewer::SetOrientation { side } {
2491	array set positions {
2492	front "1 0 0 0"
2493	back "0 0 1 0"
2494	left "0.707107 0 -0.707107 0"
2495	right "0.707107 0 0.707107 0"
2496	top "0.707107 -0.707107 0 0"
2497	bottom "0.707107 0.707107 0 0"
2498	}
2499	foreach name { qw qx qy qz } value $positions($side) {
2500	set _view($name) $value
2501	}
2502	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2503	$_arcball quaternion $q
2504	SendCmd "camera orient $q"
2505	SendCmd "camera reset"
2506	set _view(xpan) 0
2507	set _view(ypan) 0
2508	set _view(zoom) 1.0
2509	}
2510

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