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source: branches/1.3/gui/scripts/vtkheightmapviewer.tcl @ 4399

Last change on this file since 4399 was 4399, checked in by gah, 10 years ago
fix builder path, update isosurfaceviewer
File size: 88.0 KB

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1	# -- mode: tcl; indent-tabs-mode: nil --
2	# ----------------------------------------------------------------------
3	# COMPONENT: vtkheightmapviewer - Vtk heightmap viewer
4	#
5	# It connects to the Vtk server running on a rendering farm,
6	# transmits data, and displays the results.
7	# ======================================================================
8	# AUTHOR: Michael McLennan, Purdue University
9	# Copyright (c) 2004-2012 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *VtkHeightmapViewer.width 4i widgetDefault
19	option add VtkHeightmapViewercursor crosshair widgetDefault
20	option add *VtkHeightmapViewer.height 4i widgetDefault
21	option add *VtkHeightmapViewer.foreground black widgetDefault
22	option add *VtkHeightmapViewer.controlBackground gray widgetDefault
23	option add *VtkHeightmapViewer.controlDarkBackground #999999 widgetDefault
24	option add *VtkHeightmapViewer.plotBackground black widgetDefault
25	option add *VtkHeightmapViewer.plotForeground white widgetDefault
26	option add *VtkHeightmapViewer.font \
27	--helvetica-medium-r-normal--12-* widgetDefault
28
29	# must use this name -- plugs into Rappture::resources::load
30	proc VtkHeightmapViewer_init_resources {} {
31	Rappture::resources::register \
32	vtkvis_server Rappture::VtkHeightmapViewer::SetServerList
33	}
34
35	itcl::class Rappture::VtkHeightmapViewer {
36	inherit Rappture::VisViewer
37
38	itk_option define -plotforeground plotForeground Foreground ""
39	itk_option define -plotbackground plotBackground Background ""
40	itk_option define -mode mode Mode "contour"
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 limits3 { dataobj }
61	public method parameters {title args} {
62	# do nothing
63	}
64	public method scale {args}
65
66	protected method CameraReset {}
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 AdjustMode {}
74	protected method InitSettings { args }
75	protected method Pan {option x y}
76	protected method Pick {x y}
77	protected method Rebuild {}
78	protected method ReceiveDataset { args }
79	protected method ReceiveImage { args }
80	protected method ReceiveLegend { colormap title min max size }
81	protected method Rotate {option x y}
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 }
88	private method BuildContourTab {}
89	private method BuildDownloadPopup { widget command }
90	private method Combo { option }
91	private method DrawLegend {}
92	private method EnterLegend { x y }
93	private method EventuallyRequestLegend {}
94	private method EventuallyResize { w h }
95	private method EventuallyRotate { q }
96	private method GetImage { args }
97	private method GetVtkData { args }
98	private method IsValidObject { dataobj }
99	private method LeaveLegend {}
100	private method MotionLegend { x y }
101	private method PanCamera {}
102	private method RequestLegend {}
103	private method SetCurrentColormap { color }
104	private method SetLegendTip { x y }
105	private method SetObjectStyle { dataobj comp }
106	private method GetHeightmapScale {}
107	private method ResetAxes {}
108	private method SetOrientation { side }
109	private method UpdateContourList {}
110
111	private variable _arcball ""
112	private variable _dlist "" ; # list of data objects
113	private variable _obj2datasets
114	private variable _obj2ovride ; # maps dataobj => style override
115	private variable _comp2scale; # maps dataset to the heightmap scale.
116	private variable _datasets ; # contains all the dataobj-component
117	; # datasets in the server
118	private variable _colormaps ; # contains all the colormaps
119	; # in the server.
120
121	# The name of the current colormap used. The colormap is global to all
122	# heightmaps displayed.
123	private variable _currentColormap ""
124	private variable _currentNumIsolines -1
125	private variable _currentOpacity 100.0; # Widget opacity setting
126	# between 0 and 100
127
128
129	private variable _maxScale 100; # This is the # of times the x-axis
130	# and y-axis ranges can differ before
131	# automatically turning on
132	# -stretchtofit
133
134	private variable _click ; # info used for rotate operations
135	private variable _limits ; # Holds overall limits for all dataobjs
136	# using the viewer.
137	private variable _view ; # view params for 3D view
138	private variable _settings
139	private variable _changed
140	private variable _initialStyle ""; # First found style in dataobjects.
141	private variable _reset 1; # Indicates if camera needs to be reset
142	# to starting position.
143	private variable _beforeConnect 1; # Indicates if camera needs to be reset
144	# to starting position.
145
146	private variable _first "" ; # This is the topmost dataset.
147	private variable _start 0
148	private variable _isolines
149	private variable _contourList ""
150
151	common _downloadPopup; # download options from popup
152	private common _hardcopy
153	private variable _width 0
154	private variable _height 0
155	private variable _legendWidth 0
156	private variable _legendHeight 0
157	private variable _resizePending 0
158	private variable _rotatePending 0
159	private variable _legendPending 0
160	private variable _fieldNames {}
161	private variable _fields
162	private variable _curFldName ""
163	private variable _curFldLabel ""
164	private variable _colorMode "scalar";# Mode of colormap (vmag or scalar)
165	}
166
167	itk::usual VtkHeightmapViewer {
168	keep -background -foreground -cursor -font
169	keep -plotbackground -plotforeground -mode
170	}
171
172	# ----------------------------------------------------------------------
173	# CONSTRUCTOR
174	# ----------------------------------------------------------------------
175	itcl::body Rappture::VtkHeightmapViewer::constructor {hostlist args} {
176	set _serverType "vtkvis"
177
178	EnableWaitDialog 900
179	# Rebuild event
180	$_dispatcher register !rebuild
181	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
182
183	# Resize event
184	$_dispatcher register !resize
185	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
186
187	# Rotate event
188	$_dispatcher register !rotate
189	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
190
191	# Legend event
192	$_dispatcher register !legend
193	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
194
195	#
196	# Populate parser with commands handle incoming requests
197	#
198	$_parser alias image [itcl::code $this ReceiveImage]
199	$_parser alias dataset [itcl::code $this ReceiveDataset]
200	$_parser alias legend [itcl::code $this ReceiveLegend]
201
202	# Create image for legend colorbar.
203	set _image(legend) [image create photo]
204
205	# Initialize the view to some default parameters.
206	array set _view {
207	qw 0.36
208	qx 0.25
209	qy 0.50
210	qz 0.70
211	zoom 1.0
212	xpan 0
213	ypan 0
214	ortho 0
215	}
216	set _arcball [blt::arcball create 100 100]
217	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
218	$_arcball quaternion $q
219
220	array set _settings {
221	-axisflymode "static"
222	-axisminorticks 1
223	-stretchtofit 0
224	-axislabels 1
225	-axisvisible 1
226	-xaxisgrid 0
227	-yaxisgrid 0
228	-zaxisgrid 0
229	-colormapvisible 1
230	-colormapdiscrete 0
231	-edges 0
232	-field "Default"
233	-heightmapscale 50
234	-isheightmap 0
235	-isolinecolor black
236	-isolinesVisible 1
237	-legendvisible 1
238	-lighting 1
239	-savelighting 1
240	-numisolines 10
241	-opacity 1.0
242	-outline 0
243	-wireframe 0
244	-saveopacity 1.0
245	-saveoutline 0
246	}
247	array set _changed {
248	-opacity 0.0
249	-colormap 0
250	-numisolines 0
251	}
252	itk_component add view {
253	canvas $itk_component(plotarea).view \
254	-highlightthickness 0 -borderwidth 0
255	} {
256	usual
257	ignore -highlightthickness -borderwidth -background
258	}
259
260	itk_component add fieldmenu {
261	menu $itk_component(plotarea).menu \
262	-relief flat \
263	-tearoff no
264	} {
265	usual
266	ignore -background -foreground -relief -tearoff
267	}
268	set c $itk_component(view)
269	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
270	bind $c <4> [itcl::code $this Zoom in 0.25]
271	bind $c <5> [itcl::code $this Zoom out 0.25]
272	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
273	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
274	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
275	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
276	bind $c <Enter> "focus %W"
277	bind $c <Control-F1> [itcl::code $this ToggleConsole]
278
279	# Fix the scrollregion in case we go off screen
280	$c configure -scrollregion [$c bbox all]
281
282	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
283	set _map(cwidth) -1
284	set _map(cheight) -1
285	set _map(zoom) 1.0
286	set _map(original) ""
287
288	set f [$itk_component(main) component controls]
289	itk_component add reset {
290	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
291	-highlightthickness 0 \
292	-image [Rappture::icon reset-view] \
293	-command [itcl::code $this CameraReset]
294	} {
295	usual
296	ignore -highlightthickness
297	}
298	pack $itk_component(reset) -side top -padx 2 -pady { 2 0 }
299	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
300
301	itk_component add zoomin {
302	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
303	-highlightthickness 0 \
304	-image [Rappture::icon zoom-in] \
305	-command [itcl::code $this Zoom in]
306	} {
307	usual
308	ignore -highlightthickness
309	}
310	pack $itk_component(zoomin) -side top -padx 2 -pady { 2 0 }
311	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
312
313	itk_component add zoomout {
314	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
315	-highlightthickness 0 \
316	-image [Rappture::icon zoom-out] \
317	-command [itcl::code $this Zoom out]
318	} {
319	usual
320	ignore -highlightthickness
321	}
322	pack $itk_component(zoomout) -side top -padx 2 -pady { 2 0 }
323	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
324
325	itk_component add mode {
326	Rappture::PushButton $f.mode \
327	-onimage [Rappture::icon surface] \
328	-offimage [Rappture::icon surface] \
329	-variable [itcl::scope _settings(-isheightmap)] \
330	-command [itcl::code $this AdjustSetting -isheightmap] \
331	}
332	Rappture::Tooltip::for $itk_component(mode) \
333	"Toggle the surface/contour on/off"
334	pack $itk_component(mode) -padx 2 -pady { 2 0 }
335
336	itk_component add stretchtofit {
337	Rappture::PushButton $f.stretchtofit \
338	-onimage [Rappture::icon stretchtofit] \
339	-offimage [Rappture::icon stretchtofit] \
340	-variable [itcl::scope _settings(-stretchtofit)] \
341	-command [itcl::code $this AdjustSetting -stretchtofit] \
342	}
343	Rappture::Tooltip::for $itk_component(stretchtofit) \
344	"Stretch plot to fit window on/off"
345	pack $itk_component(stretchtofit) -padx 2 -pady 2
346
347	if { [catch {
348	BuildContourTab
349	BuildAxisTab
350	BuildCameraTab
351	} errs] != 0 } {
352	global errorInfo
353	puts stderr "errs=$errs errorInfo=$errorInfo"
354	}
355
356	# Hack around the Tk panewindow. The problem is that the requested
357	# size of the 3d view isn't set until an image is retrieved from
358	# the server. So the panewindow uses the tiny size.
359	set w 10000
360	pack forget $itk_component(view)
361	blt::table $itk_component(plotarea) \
362	0,0 $itk_component(view) -fill both -reqwidth $w
363	blt::table configure $itk_component(plotarea) c1 -resize none
364
365	# Bindings for panning via mouse
366	bind $itk_component(view) <ButtonPress-2> \
367	[itcl::code $this Pan click %x %y]
368	bind $itk_component(view) <B2-Motion> \
369	[itcl::code $this Pan drag %x %y]
370	bind $itk_component(view) <ButtonRelease-2> \
371	[itcl::code $this Pan release %x %y]
372
373	#bind $itk_component(view) <ButtonRelease-3> \
374	# [itcl::code $this Pick %x %y]
375
376	# Bindings for panning via keyboard
377	bind $itk_component(view) <KeyPress-Left> \
378	[itcl::code $this Pan set -10 0]
379	bind $itk_component(view) <KeyPress-Right> \
380	[itcl::code $this Pan set 10 0]
381	bind $itk_component(view) <KeyPress-Up> \
382	[itcl::code $this Pan set 0 -10]
383	bind $itk_component(view) <KeyPress-Down> \
384	[itcl::code $this Pan set 0 10]
385	bind $itk_component(view) <Shift-KeyPress-Left> \
386	[itcl::code $this Pan set -2 0]
387	bind $itk_component(view) <Shift-KeyPress-Right> \
388	[itcl::code $this Pan set 2 0]
389	bind $itk_component(view) <Shift-KeyPress-Up> \
390	[itcl::code $this Pan set 0 -2]
391	bind $itk_component(view) <Shift-KeyPress-Down> \
392	[itcl::code $this Pan set 0 2]
393
394	# Bindings for zoom via keyboard
395	bind $itk_component(view) <KeyPress-Prior> \
396	[itcl::code $this Zoom out]
397	bind $itk_component(view) <KeyPress-Next> \
398	[itcl::code $this Zoom in]
399
400	bind $itk_component(view) <Enter> "focus $itk_component(view)"
401
402	if {[string equal "x11" [tk windowingsystem]]} {
403	# Bindings for zoom via mouse
404	bind $itk_component(view) <4> [itcl::code $this Zoom out]
405	bind $itk_component(view) <5> [itcl::code $this Zoom in]
406	}
407
408	set _image(download) [image create photo]
409	eval itk_initialize $args
410	Connect
411	set _beforeConnect 0
412	}
413
414	# ----------------------------------------------------------------------
415	# DESTRUCTOR
416	# ----------------------------------------------------------------------
417	itcl::body Rappture::VtkHeightmapViewer::destructor {} {
418	Disconnect
419	image delete $_image(plot)
420	image delete $_image(download)
421	catch { blt::arcball destroy $_arcball }
422	}
423
424	itcl::body Rappture::VtkHeightmapViewer::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 [expr $_width - 20] $_height"
433
434	set font "Arial 8"
435	set lh [font metrics $font -linespace]
436	set h [expr {$_height - 2 * ($lh + 2)}]
437	if { $h != $_legendHeight } {
438	EventuallyRequestLegend
439	} else {
440	DrawLegend
441	}
442	set _resizePending 0
443	}
444
445	itcl::body Rappture::VtkHeightmapViewer::DoRotate {} {
446	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
447	SendCmd "camera orient $q"
448	set _rotatePending 0
449	}
450
451	itcl::body Rappture::VtkHeightmapViewer::EventuallyRequestLegend {} {
452	if { !$_legendPending } {
453	set _legendPending 1
454	$_dispatcher event -idle !legend
455	}
456	}
457
458	itcl::body Rappture::VtkHeightmapViewer::EventuallyResize { w h } {
459	set _width $w
460	set _height $h
461	$_arcball resize $w $h
462	if { !$_resizePending } {
463	set _resizePending 1
464	$_dispatcher event -after 250 !resize
465	}
466	}
467
468	set rotate_delay 100
469
470	itcl::body Rappture::VtkHeightmapViewer::EventuallyRotate { q } {
471	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
472	if { !$_rotatePending } {
473	set _rotatePending 1
474	global rotate_delay
475	$_dispatcher event -after $rotate_delay !rotate
476	}
477	}
478
479	# ----------------------------------------------------------------------
480	# USAGE: add <dataobj> ?<settings>?
481	#
482	# Clients use this to add a data object to the plot. The optional
483	# <settings> are used to configure the plot. Allowed settings are
484	# -color, -brightness, -width, -linestyle, and -raise.
485	# ----------------------------------------------------------------------
486	itcl::body Rappture::VtkHeightmapViewer::add {dataobj {settings ""}} {
487	if { ![$dataobj isvalid] } {
488	return; # Object doesn't contain valid data.
489	}
490	array set params {
491	-color auto
492	-width 1
493	-linestyle solid
494	-brightness 0
495	-raise 0
496	-description ""
497	-param ""
498	-type ""
499	}
500	array set params $settings
501	set params(-description) ""
502	set params(-param) ""
503	array set params $settings
504
505	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
506	# can't handle -autocolors yet
507	set params(-color) white
508	}
509	set pos [lsearch -exact $_dlist $dataobj]
510	if {$pos < 0} {
511	lappend _dlist $dataobj
512	}
513	set _obj2ovride($dataobj-color) $params(-color)
514	set _obj2ovride($dataobj-width) $params(-width)
515	set _obj2ovride($dataobj-raise) $params(-raise)
516	$_dispatcher event -idle !rebuild
517	}
518
519
520	# ----------------------------------------------------------------------
521	# USAGE: delete ?<dataobj1> <dataobj2> ...?
522	#
523	# Clients use this to delete a dataobj from the plot. If no dataobjs
524	# are specified, then all dataobjs are deleted. No data objects are
525	# deleted. They are only removed from the display list.
526	#
527	# ----------------------------------------------------------------------
528	itcl::body Rappture::VtkHeightmapViewer::delete {args} {
529	if { [llength $args] == 0} {
530	set args $_dlist
531	}
532	# Delete all specified dataobjs
533	set changed 0
534	foreach dataobj $args {
535	set pos [lsearch -exact $_dlist $dataobj]
536	if { $pos < 0 } {
537	continue; # Don't know anything about it.
538	}
539	# Remove it from the dataobj list.
540	set _dlist [lreplace $_dlist $pos $pos]
541	array unset _obj2ovride $dataobj-*
542	array unset _settings $dataobj-*
543	set changed 1
544	}
545	# If anything changed, then rebuild the plot
546	if { $changed } {
547	$_dispatcher event -idle !rebuild
548	}
549	}
550
551	# ----------------------------------------------------------------------
552	# USAGE: get ?-objects?
553	# USAGE: get ?-visible?
554	# USAGE: get ?-image view?
555	#
556	# Clients use this to query the list of objects being plotted, in
557	# order from bottom to top of this result. The optional "-image"
558	# flag can also request the internal images being shown.
559	# ----------------------------------------------------------------------
560	itcl::body Rappture::VtkHeightmapViewer::get {args} {
561	if {[llength $args] == 0} {
562	set args "-objects"
563	}
564	set op [lindex $args 0]
565	switch -- $op {
566	"-objects" {
567	# put the dataobj list in order according to -raise options
568	set dlist {}
569	foreach dataobj $_dlist {
570	if { ![IsValidObject $dataobj] } {
571	continue
572	}
573	if {[info exists _obj2ovride($dataobj-raise)] &&
574	$_obj2ovride($dataobj-raise)} {
575	set dlist [linsert $dlist 0 $dataobj]
576	} else {
577	lappend dlist $dataobj
578	}
579	}
580	return $dlist
581	}
582	"-visible" {
583	set dlist {}
584	foreach dataobj $_dlist {
585	if { ![IsValidObject $dataobj] } {
586	continue
587	}
588	if { ![info exists _obj2ovride($dataobj-raise)] } {
589	# No setting indicates that the object isn't visible.
590	continue
591	}
592	# Otherwise use the -raise parameter to put the object to
593	# the front of the list.
594	if { $_obj2ovride($dataobj-raise) } {
595	set dlist [linsert $dlist 0 $dataobj]
596	} else {
597	lappend dlist $dataobj
598	}
599	}
600	return $dlist
601	}
602	-image {
603	if {[llength $args] != 2} {
604	error "wrong # args: should be \"get -image view\""
605	}
606	switch -- [lindex $args end] {
607	view {
608	return $_image(plot)
609	}
610	default {
611	error "bad image name \"[lindex $args end]\": should be view"
612	}
613	}
614	}
615	default {
616	error "bad option \"$op\": should be -objects or -image"
617	}
618	}
619	}
620
621	#
622	# scale --
623	#
624	# This gets called either incrementally as new simulations are
625	# added or all at once as a sequence of heightmaps.
626	# This accounts for all objects--even those not showing on the
627	# screen. Because of this, the limits are appropriate for all
628	# objects as the user scans through data in the ResultSet viewer.
629	#
630	itcl::body Rappture::VtkHeightmapViewer::scale {args} {
631	foreach dataobj $args {
632	if { ![$dataobj isvalid] } {
633	continue; # Object doesn't contain valid data.
634	}
635	foreach axis { x y } {
636	set lim [$dataobj limits $axis]
637	if { ![info exists _limits($axis)] } {
638	set _limits($axis) $lim
639	continue
640	}
641	foreach {min max} $lim break
642	foreach {amin amax} $_limits($axis) break
643	if { $amin > $min } {
644	set amin $min
645	}
646	if { $amax < $max } {
647	set amax $max
648	}
649	set _limits($axis) [list $amin $amax]
650	set units [$dataobj hints ${axis}units]
651	set found($units) 1
652	}
653	foreach { fname lim } [$dataobj fieldlimits] {
654	if { ![info exists _limits($fname)] } {
655	set _limits($fname) $lim
656	continue
657	}
658	foreach {min max} $lim break
659	foreach {fmin fmax} $_limits($fname) break
660	if { $fmin > $min } {
661	set fmin $min
662	}
663	if { $fmax < $max } {
664	set fmax $max
665	}
666	set _limits($fname) [list $fmin $fmax]
667	}
668	}
669	if { [array size found] > 1 } {
670	set _settings(-stretchtofit) 1
671	} else {
672	# Check if the range of the x and y axes requires that we stretch
673	# the contour to fit the plotting area. This can happen when the
674	# x and y scales differ greatly (> 100x)
675	foreach {xmin xmax} $_limits(x) break
676	foreach {ymin ymax} $_limits(y) break
677	if { (($xmax - $xmin) > (($ymax -$ymin) * $_maxScale)) \|\|
678	((($xmax - $xmin) * $_maxScale) < ($ymax -$ymin)) } {
679	set _settings(-stretchtofit) 1
680	}
681	}
682	}
683
684	# ----------------------------------------------------------------------
685	# USAGE: download coming
686	# USAGE: download controls <downloadCommand>
687	# USAGE: download now
688	#
689	# Clients use this method to create a downloadable representation
690	# of the plot. Returns a list of the form {ext string}, where
691	# "ext" is the file extension (indicating the type of data) and
692	# "string" is the data itself.
693	# ----------------------------------------------------------------------
694	itcl::body Rappture::VtkHeightmapViewer::download {option args} {
695	switch $option {
696	coming {
697	if {[catch {
698	blt::winop snap $itk_component(plotarea) $_image(download)
699	}]} {
700	$_image(download) configure -width 1 -height 1
701	$_image(download) put #000000
702	}
703	}
704	controls {
705	set popup .vtkviewerdownload
706	if { ![winfo exists .vtkviewerdownload] } {
707	set inner [BuildDownloadPopup $popup [lindex $args 0]]
708	} else {
709	set inner [$popup component inner]
710	}
711	set _downloadPopup(image_controls) $inner.image_frame
712	set num [llength [get]]
713	set num [expr {($num == 1) ? "1 result" : "$num results"}]
714	set word [Rappture::filexfer::label downloadWord]
715	$inner.summary configure -text "$word $num in the following format:"
716	update idletasks ;# Fix initial sizes
717	return $popup
718	}
719	now {
720	set popup .vtkviewerdownload
721	if {[winfo exists .vtkviewerdownload]} {
722	$popup deactivate
723	}
724	switch -- $_downloadPopup(format) {
725	"image" {
726	return [$this GetImage [lindex $args 0]]
727	}
728	"vtk" {
729	return [$this GetVtkData [lindex $args 0]]
730	}
731	}
732	return ""
733	}
734	default {
735	error "bad option \"$option\": should be coming, controls, now"
736	}
737	}
738	}
739
740	# ----------------------------------------------------------------------
741	# USAGE: Connect ?<host:port>,<host:port>...?
742	#
743	# Clients use this method to establish a connection to a new
744	# server, or to reestablish a connection to the previous server.
745	# Any existing connection is automatically closed.
746	# ----------------------------------------------------------------------
747	itcl::body Rappture::VtkHeightmapViewer::Connect {} {
748	global readyForNextFrame
749	set readyForNextFrame 1
750	set _reset 1
751	set _hosts [GetServerList "vtkvis"]
752	if { "" == $_hosts } {
753	return 0
754	}
755	set result [VisViewer::Connect $_hosts]
756	if { $result } {
757	if { $_reportClientInfo } {
758	# Tell the server the viewer, hub, user and session.
759	# Do this immediately on connect before buffering any commands
760	global env
761
762	set info {}
763	set user "???"
764	if { [info exists env(USER)] } {
765	set user $env(USER)
766	}
767	set session "???"
768	if { [info exists env(SESSION)] } {
769	set session $env(SESSION)
770	}
771	lappend info "hub" [exec hostname]
772	lappend info "client" "vtkheightmapviewer"
773	lappend info "user" $user
774	lappend info "session" $session
775	SendCmd "clientinfo [list $info]"
776	}
777	set w [winfo width $itk_component(view)]
778	set h [winfo height $itk_component(view)]
779	EventuallyResize $w $h
780	}
781	return $result
782	}
783
784	#
785	# isconnected --
786	#
787	# Indicates if we are currently connected to the visualization server.
788	#
789	itcl::body Rappture::VtkHeightmapViewer::isconnected {} {
790	return [VisViewer::IsConnected]
791	}
792
793	#
794	# disconnect --
795	#
796	itcl::body Rappture::VtkHeightmapViewer::disconnect {} {
797	Disconnect
798	set _reset 1
799	}
800
801	#
802	# Disconnect --
803	#
804	# Clients use this method to disconnect from the current rendering
805	# server.
806	#
807	itcl::body Rappture::VtkHeightmapViewer::Disconnect {} {
808	VisViewer::Disconnect
809
810	$_dispatcher cancel !rebuild
811	$_dispatcher cancel !resize
812	$_dispatcher cancel !rotate
813	$_dispatcher cancel !legend
814	# disconnected -- no more data sitting on server
815	array unset _datasets
816	array unset _data
817	array unset _colormaps
818	array unset _obj2datasets
819	global readyForNextFrame
820	set readyForNextFrame 1
821	}
822
823	# ----------------------------------------------------------------------
824	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
825	#
826	# Invoked automatically whenever the "image" command comes in from
827	# the rendering server. Indicates that binary image data with the
828	# specified <size> will follow.
829	# ----------------------------------------------------------------------
830	itcl::body Rappture::VtkHeightmapViewer::ReceiveImage { args } {
831	global readyForNextFrame
832	set readyForNextFrame 1
833	array set info {
834	-token "???"
835	-bytes 0
836	-type image
837	}
838	array set info $args
839	set bytes [ReceiveBytes $info(-bytes)]
840	if { $info(-type) == "image" } {
841	if 0 {
842	set f [open "last.ppm" "w"]
843	puts $f $bytes
844	close $f
845	}
846	$_image(plot) configure -data $bytes
847	set time [clock seconds]
848	set date [clock format $time]
849	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
850	if { $_start > 0 } {
851	set finish [clock clicks -milliseconds]
852	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
853	set _start 0
854	}
855	} elseif { $info(type) == "print" } {
856	set tag $this-print-$info(-token)
857	set _hardcopy($tag) $bytes
858	}
859	}
860
861	#
862	# ReceiveDataset --
863	#
864	itcl::body Rappture::VtkHeightmapViewer::ReceiveDataset { args } {
865	if { ![isconnected] } {
866	return
867	}
868	set option [lindex $args 0]
869	switch -- $option {
870	"scalar" {
871	set option [lindex $args 1]
872	switch -- $option {
873	"world" {
874	foreach { x y z value tag } [lrange $args 2 end] break
875	}
876	"pixel" {
877	foreach { x y value tag } [lrange $args 2 end] break
878	}
879	}
880	}
881	"vector" {
882	set option [lindex $args 1]
883	switch -- $option {
884	"world" {
885	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
886	}
887	"pixel" {
888	foreach { x y vx vy vz tag } [lrange $args 2 end] break
889	}
890	}
891	}
892	"names" {
893	foreach { name } [lindex $args 1] {
894	#puts stderr "Dataset: $name"
895	}
896	}
897	default {
898	error "unknown dataset option \"$option\" from server"
899	}
900	}
901	}
902
903	# ----------------------------------------------------------------------
904	# USAGE: Rebuild
905	#
906	# Called automatically whenever something changes that affects the
907	# data in the widget. Clears any existing data and rebuilds the
908	# widget to display new data.
909	# ----------------------------------------------------------------------
910	itcl::body Rappture::VtkHeightmapViewer::Rebuild {} {
911	set w [winfo width $itk_component(view)]
912	set h [winfo height $itk_component(view)]
913	if { $w < 2 \|\| $h < 2 } {
914	$_dispatcher event -idle !rebuild
915	return
916	}
917
918	# Turn on buffering of commands to the server. We don't want to
919	# be preempted by a server disconnect/reconnect (which automatically
920	# generates a new call to Rebuild).
921	StartBufferingCommands
922
923	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
924	set _width $w
925	set _height $h
926	$_arcball resize $w $h
927	DoResize
928	if { $_settings(-stretchtofit) } {
929	AdjustSetting -stretchtofit
930	}
931	}
932	if { $_reset } {
933	#
934	# Reset the camera and other view parameters
935	#
936	InitSettings -isheightmap -background
937
938	# Let's see how this goes. I think it's preferable to overloading the
939	# axis title with the exponent.
940	SendCmd "axis exp 0 0 0 1"
941
942	SendCmd "axis lrot z 90"
943	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
944	$_arcball quaternion $q
945	if {$_settings(-isheightmap) } {
946	if { $_view(ortho)} {
947	SendCmd "camera mode ortho"
948	} else {
949	SendCmd "camera mode persp"
950	}
951	DoRotate
952	SendCmd "camera reset"
953	}
954	PanCamera
955	StopBufferingCommands
956	SendCmd "imgflush"
957	StartBufferingCommands
958	}
959
960	set _first ""
961	# Start off with no datasets are visible.
962	SendCmd "dataset visible 0"
963	set scale [GetHeightmapScale]
964	foreach dataobj [get -objects] {
965	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
966	set _first $dataobj
967	}
968	set _obj2datasets($dataobj) ""
969	foreach comp [$dataobj components] {
970	set tag $dataobj-$comp
971	if { ![info exists _datasets($tag)] } {
972	set bytes [$dataobj vtkdata $comp]
973	if 0 {
974	set f [open /tmp/vtkheightmap.vtk "w"]
975	puts $f $bytes
976	close $f
977	}
978	set length [string length $bytes]
979	if { $_reportClientInfo } {
980	set info {}
981	lappend info "tool_id" [$dataobj hints toolId]
982	lappend info "tool_name" [$dataobj hints toolName]
983	lappend info "tool_version" [$dataobj hints toolRevision]
984	lappend info "tool_title" [$dataobj hints toolTitle]
985	lappend info "dataset_label" [$dataobj hints label]
986	lappend info "dataset_size" $length
987	lappend info "dataset_tag" $tag
988	SendCmd [list "clientinfo" $info]
989	}
990	SendCmd "dataset add $tag data follows $length"
991	append _outbuf $bytes
992	set _datasets($tag) 1
993	SetObjectStyle $dataobj $comp
994	}
995	lappend _obj2datasets($dataobj) $tag
996	if { [info exists _obj2ovride($dataobj-raise)] } {
997	# Setting dataset visible enables outline
998	# and heightmap
999	SendCmd "dataset visible 1 $tag"
1000	}
1001	if { ![info exists _comp2scale($tag)] \|\|
1002	$_comp2scale($tag) != $scale } {
1003	SendCmd "heightmap heightscale $scale $tag"
1004	set _comp2scale($tag) $scale
1005	}
1006	}
1007	}
1008	if { $_first != "" } {
1009	$itk_component(field) choices delete 0 end
1010	$itk_component(fieldmenu) delete 0 end
1011	array unset _fields
1012	set _curFldName ""
1013	foreach cname [$_first components] {
1014	foreach fname [$_first fieldnames $cname] {
1015	if { [info exists _fields($fname)] } {
1016	continue
1017	}
1018	foreach { label units components } \
1019	[$_first fieldinfo $fname] break
1020	$itk_component(field) choices insert end "$fname" "$label"
1021	$itk_component(fieldmenu) add radiobutton -label "$label" \
1022	-value $label -variable [itcl::scope _curFldLabel] \
1023	-selectcolor red \
1024	-activebackground $itk_option(-plotbackground) \
1025	-activeforeground $itk_option(-plotforeground) \
1026	-font "Arial 8" \
1027	-command [itcl::code $this Combo invoke]
1028	set _fields($fname) [list $label $units $components]
1029	if { $_curFldName == "" } {
1030	set _curFldName $fname
1031	set _curFldLabel $label
1032	}
1033	}
1034	}
1035	$itk_component(field) value $_curFldLabel
1036	}
1037	InitSettings -stretchtofit -outline
1038
1039	if { $_reset } {
1040	SendCmd "axis tickpos outside"
1041	foreach axis { x y z } {
1042	SendCmd "axis lformat $axis %g"
1043	}
1044
1045	foreach axis { x y z } {
1046	if { $axis == "z" } {
1047	set label [$_first hints label]
1048	} else {
1049	set label [$_first hints ${axis}label]
1050	}
1051	if { $label == "" } {
1052	if {$axis == "z"} {
1053	if { [string match "component*" $_curFldName] } {
1054	set label [string toupper $axis]
1055	} else {
1056	set label $_curFldLabel
1057	}
1058	} else {
1059	set label [string toupper $axis]
1060	}
1061	}
1062	# May be a space in the axis label.
1063	SendCmd [list axis name $axis $label]
1064
1065	if {$axis == "z" && [$_first hints ${axis}units] == ""} {
1066	set units [lindex $_fields($_curFldName) 1]
1067	} else {
1068	set units [$_first hints ${axis}units]
1069	}
1070	if { $units != "" } {
1071	# May be a space in the axis units.
1072	SendCmd [list axis units $axis $units]
1073	}
1074	}
1075	#
1076	# Reset the camera and other view parameters
1077	#
1078	ResetAxes
1079	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1080	$_arcball quaternion $q
1081	if {$_settings(-isheightmap) } {
1082	if { $_view(ortho)} {
1083	SendCmd "camera mode ortho"
1084	} else {
1085	SendCmd "camera mode persp"
1086	}
1087	DoRotate
1088	SendCmd "camera reset"
1089	}
1090	PanCamera
1091	InitSettings -xgrid -ygrid -zgrid \
1092	-axisvisible -axislabels -heightmapscale -field -isheightmap \
1093	-numisolines
1094	if { [array size _fields] < 2 } {
1095	blt::table forget $itk_component(field) $itk_component(field_l)
1096	}
1097	RequestLegend
1098	set _reset 0
1099	}
1100	global readyForNextFrame
1101	set readyForNextFrame 0; # Don't advance to the next frame
1102
1103	# Actually write the commands to the server socket. If it fails, we don't
1104	# care. We're finished here.
1105	blt::busy hold $itk_component(hull)
1106	StopBufferingCommands
1107	blt::busy release $itk_component(hull)
1108	}
1109
1110	# ----------------------------------------------------------------------
1111	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1112	#
1113	# Returns a list of server IDs for the current datasets being displayed. This
1114	# is normally a single ID, but it might be a list of IDs if the current data
1115	# object has multiple components.
1116	# ----------------------------------------------------------------------
1117	itcl::body Rappture::VtkHeightmapViewer::CurrentDatasets {args} {
1118	set flag [lindex $args 0]
1119	switch -- $flag {
1120	"-all" {
1121	if { [llength $args] > 1 } {
1122	error "CurrentDatasets: can't specify dataobj after \"-all\""
1123	}
1124	set dlist [get -objects]
1125	}
1126	"-visible" {
1127	if { [llength $args] > 1 } {
1128	set dlist {}
1129	set args [lrange $args 1 end]
1130	foreach dataobj $args {
1131	if { [info exists _obj2ovride($dataobj-raise)] } {
1132	lappend dlist $dataobj
1133	}
1134	}
1135	} else {
1136	set dlist [get -visible]
1137	}
1138	}
1139	default {
1140	set dlist $args
1141	}
1142	}
1143	set rlist ""
1144	foreach dataobj $dlist {
1145	foreach comp [$dataobj components] {
1146	set tag $dataobj-$comp
1147	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1148	lappend rlist $tag
1149	}
1150	}
1151	}
1152	return $rlist
1153	}
1154
1155	itcl::body Rappture::VtkHeightmapViewer::CameraReset {} {
1156	array set _view {
1157	qw 0.36
1158	qx 0.25
1159	qy 0.50
1160	qz 0.70
1161	zoom 1.0
1162	xpan 0
1163	ypan 0
1164	}
1165	if { $_first != "" } {
1166	set location [$_first hints camera]
1167	if { $location != "" } {
1168	array set _view $location
1169	}
1170	}
1171	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1172	$_arcball quaternion $q
1173	if {$_settings(-isheightmap) } {
1174	DoRotate
1175	}
1176	SendCmd "camera reset"
1177	}
1178
1179	# ----------------------------------------------------------------------
1180	# USAGE: Zoom in
1181	# USAGE: Zoom out
1182	# USAGE: Zoom reset
1183	#
1184	# Called automatically when the user clicks on one of the zoom
1185	# controls for this widget. Changes the zoom for the current view.
1186	# ----------------------------------------------------------------------
1187	itcl::body Rappture::VtkHeightmapViewer::Zoom {option} {
1188	switch -- $option {
1189	"in" {
1190	set _view(zoom) [expr {$_view(zoom)*1.25}]
1191	SendCmd "camera zoom $_view(zoom)"
1192	}
1193	"out" {
1194	set _view(zoom) [expr {$_view(zoom)*0.8}]
1195	SendCmd "camera zoom $_view(zoom)"
1196	}
1197	"reset" {
1198	array set _view {
1199	zoom 1.0
1200	xpan 0
1201	ypan 0
1202	}
1203	SendCmd "camera reset"
1204	}
1205	}
1206	}
1207
1208	itcl::body Rappture::VtkHeightmapViewer::PanCamera {} {
1209	set x $_view(xpan)
1210	set y $_view(ypan)
1211	SendCmd "camera pan $x $y"
1212	}
1213
1214
1215	# ----------------------------------------------------------------------
1216	# USAGE: Rotate click <x> <y>
1217	# USAGE: Rotate drag <x> <y>
1218	# USAGE: Rotate release <x> <y>
1219	#
1220	# Called automatically when the user clicks/drags/releases in the
1221	# plot area. Moves the plot according to the user's actions.
1222	# ----------------------------------------------------------------------
1223	itcl::body Rappture::VtkHeightmapViewer::Rotate {option x y} {
1224	switch -- $option {
1225	"click" {
1226	$itk_component(view) configure -cursor fleur
1227	set _click(x) $x
1228	set _click(y) $y
1229	}
1230	"drag" {
1231	if {[array size _click] == 0} {
1232	Rotate click $x $y
1233	} else {
1234	set w [winfo width $itk_component(view)]
1235	set h [winfo height $itk_component(view)]
1236	if {$w <= 0 \|\| $h <= 0} {
1237	return
1238	}
1239
1240	if {[catch {
1241	# this fails sometimes for no apparent reason
1242	set dx [expr {double($x-$_click(x))/$w}]
1243	set dy [expr {double($y-$_click(y))/$h}]
1244	}]} {
1245	return
1246	}
1247	if { $dx == 0 && $dy == 0 } {
1248	return
1249	}
1250	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1251	EventuallyRotate $q
1252	set _click(x) $x
1253	set _click(y) $y
1254	}
1255	}
1256	"release" {
1257	Rotate drag $x $y
1258	$itk_component(view) configure -cursor ""
1259	catch {unset _click}
1260	}
1261	default {
1262	error "bad option \"$option\": should be click, drag, release"
1263	}
1264	}
1265	}
1266
1267	itcl::body Rappture::VtkHeightmapViewer::Pick {x y} {
1268	foreach tag [CurrentDatasets -visible] {
1269	SendCmd "dataset getscalar pixel $x $y $tag"
1270	}
1271	}
1272
1273	# ----------------------------------------------------------------------
1274	# USAGE: $this Pan click x y
1275	# $this Pan drag x y
1276	# $this Pan release x y
1277	#
1278	# Called automatically when the user clicks on one of the zoom
1279	# controls for this widget. Changes the zoom for the current view.
1280	# ----------------------------------------------------------------------
1281	itcl::body Rappture::VtkHeightmapViewer::Pan {option x y} {
1282	switch -- $option {
1283	"set" {
1284	set w [winfo width $itk_component(view)]
1285	set h [winfo height $itk_component(view)]
1286	set x [expr $x / double($w)]
1287	set y [expr $y / double($h)]
1288	set _view(xpan) [expr $_view(xpan) + $x]
1289	set _view(ypan) [expr $_view(ypan) + $y]
1290	PanCamera
1291	return
1292	}
1293	"click" {
1294	set _click(x) $x
1295	set _click(y) $y
1296	$itk_component(view) configure -cursor hand1
1297	}
1298	"drag" {
1299	if { ![info exists _click(x)] } {
1300	set _click(x) $x
1301	}
1302	if { ![info exists _click(y)] } {
1303	set _click(y) $y
1304	}
1305	set w [winfo width $itk_component(view)]
1306	set h [winfo height $itk_component(view)]
1307	set dx [expr ($_click(x) - $x)/double($w)]
1308	set dy [expr ($_click(y) - $y)/double($h)]
1309	set _click(x) $x
1310	set _click(y) $y
1311	set _view(xpan) [expr $_view(xpan) - $dx]
1312	set _view(ypan) [expr $_view(ypan) - $dy]
1313	PanCamera
1314	}
1315	"release" {
1316	Pan drag $x $y
1317	$itk_component(view) configure -cursor ""
1318	}
1319	default {
1320	error "unknown option \"$option\": should set, click, drag, or release"
1321	}
1322	}
1323	}
1324
1325	# ----------------------------------------------------------------------
1326	# USAGE: InitSettings <what> ?<value>?
1327	#
1328	# Used internally to update rendering settings whenever parameters
1329	# change in the popup settings panel. Sends the new settings off
1330	# to the back end.
1331	# ----------------------------------------------------------------------
1332	itcl::body Rappture::VtkHeightmapViewer::InitSettings { args } {
1333	foreach spec $args {
1334	if { [info exists _settings($_first${spec})] } {
1335	# Reset global setting with dataobj specific setting
1336	set _settings($spec) $_settings($_first${spec})
1337	}
1338	AdjustSetting $spec
1339	}
1340	}
1341
1342	#
1343	# AdjustSetting --
1344	#
1345	# Changes/updates a specific setting in the widget. There are
1346	# usually user-setable option. Commands are sent to the render
1347	# server.
1348	#
1349	itcl::body Rappture::VtkHeightmapViewer::AdjustSetting {what {value ""}} {
1350	if { $_beforeConnect } {
1351	return
1352	}
1353	switch -- $what {
1354	"-axisflymode" {
1355	set mode [$itk_component(axisflymode) value]
1356	set mode [$itk_component(axisflymode) translate $mode]
1357	set _settings($what) $mode
1358	SendCmd "axis flymode $mode"
1359	}
1360	"-axislabels" {
1361	set bool $_settings($what)
1362	SendCmd "axis labels all $bool"
1363	}
1364	"-axisminorticks" {
1365	set bool $_settings($what)
1366	foreach axis { x y z } {
1367	SendCmd "axis minticks ${axis} $bool"
1368	}
1369	}
1370	"-axisvisible" {
1371	set bool $_settings($what)
1372	SendCmd "axis visible all $bool"
1373	}
1374	"-xgrid" - "-ygrid" - "-zgrid" {
1375	set axis [string tolower [string range $what 1 1]]
1376	set bool $_settings($what)
1377	SendCmd "axis grid $axis $bool"
1378	}
1379	"-background" {
1380	set bg [$itk_component(background) value]
1381	array set fgcolors {
1382	"black" "white"
1383	"white" "black"
1384	"grey" "black"
1385	}
1386	set fg $fgcolors($bg)
1387	configure -plotbackground $bg -plotforeground $fg
1388	$itk_component(view) delete "legend"
1389	SendCmd "screen bgcolor [Color2RGB $bg]"
1390	SendCmd "outline color [Color2RGB $fg]"
1391	SendCmd "axis color all [Color2RGB $fg]"
1392	DrawLegend
1393	}
1394	"-colormap" {
1395	set _changed($what) 1
1396	StartBufferingCommands
1397	set color [$itk_component(colormap) value]
1398	set _settings($what) $color
1399	if { $color == "none" } {
1400	if { $_settings(-colormapvisible) } {
1401	SendCmd "heightmap surface 0"
1402	set _settings(-colormapvisible) 0
1403	}
1404	} else {
1405	if { !$_settings(-colormapvisible) } {
1406	SendCmd "heightmap surface 1"
1407	set _settings(-colormapvisible) 1
1408	}
1409	SetCurrentColormap $color
1410	if {$_settings(-colormapdiscrete)} {
1411	set numColors [expr $_settings(-numisolines) + 1]
1412	SendCmd "colormap res $numColors $color"
1413	}
1414	}
1415	StopBufferingCommands
1416	EventuallyRequestLegend
1417	}
1418	"-colormapvisible" {
1419	set bool $_settings($what)
1420	SendCmd "heightmap surface $bool"
1421	}
1422	"-colormapdiscrete" {
1423	set bool $_settings($what)
1424	set numColors [expr $_settings(-numisolines) + 1]
1425	# FIXME: don't use StartBufferingCommands
1426	StartBufferingCommands
1427	if {$bool} {
1428	SendCmd "colormap res $numColors"
1429	# Discrete colormap requires preinterp on
1430	SendCmd "heightmap preinterp on"
1431	} else {
1432	SendCmd "colormap res default"
1433	# FIXME: add setting for preinterp (default on)
1434	SendCmd "heightmap preinterp on"
1435	}
1436	StopBufferingCommands
1437	EventuallyRequestLegend
1438	}
1439	"-edges" {
1440	set bool $_settings($what)
1441	SendCmd "heightmap edges $bool"
1442	}
1443	"-field" {
1444	set label [$itk_component(field) value]
1445	set fname [$itk_component(field) translate $label]
1446	set _settings($what) $fname
1447	if { [info exists _fields($fname)] } {
1448	foreach { label units components } $_fields($fname) break
1449	if { $components > 1 } {
1450	set _colorMode vmag
1451	} else {
1452	set _colorMode scalar
1453	}
1454	set _curFldName $fname
1455	set _curFldLabel $label
1456	} else {
1457	puts stderr "unknown field \"$fname\""
1458	return
1459	}
1460	set label [$_first hints label]
1461	if { $label == "" } {
1462	if { [string match "component*" $_curFldName] } {
1463	set label Z
1464	} else {
1465	set label $_curFldLabel
1466	}
1467	}
1468	# May be a space in the axis label.
1469	SendCmd [list axis name z $label]
1470
1471	if { [$_first hints zunits] == "" } {
1472	set units [lindex $_fields($_curFldName) 1]
1473	} else {
1474	set units [$_first hints zunits]
1475	}
1476	if { $units != "" } {
1477	# May be a space in the axis units.
1478	SendCmd [list axis units z $units]
1479	}
1480	# Get the new limits because the field changed.
1481	ResetAxes
1482	SendCmd "dataset scalar $_curFldName"
1483	SendCmd "heightmap colormode scalar $_curFldName"
1484	Zoom reset
1485	UpdateContourList
1486	DrawLegend
1487	}
1488	"-heightmapscale" {
1489	if { $_settings(-isheightmap) } {
1490	set scale [GetHeightmapScale]
1491	# Have to set the datasets individually because we are
1492	# tracking them in _comp2scale.
1493	foreach dataset [CurrentDatasets -all] {
1494	SendCmd "heightmap heightscale $scale $dataset"
1495	set _comp2scale($dataset) $scale
1496	}
1497	ResetAxes
1498	}
1499	}
1500	"-isheightmap" {
1501	set bool $_settings($what)
1502	set c $itk_component(view)
1503	StartBufferingCommands
1504	# Fix heightmap scale: 0 for contours, 1 for heightmaps.
1505	if { $bool } {
1506	set _settings(-heightmapscale) 50
1507	set _settings(-opacity) $_settings(-saveopacity)
1508	set _settings(-lighting) $_settings(-savelighting)
1509	set _settings(-outline) 0
1510	} else {
1511	set _settings(-heightmapscale) 0
1512	set _settings(-lighting) 0
1513	set _settings(-opacity) 1.0
1514	set _settings(-outline) $_settings(-saveoutline)
1515	}
1516	InitSettings -lighting -opacity -outline
1517	set scale [GetHeightmapScale]
1518	# Have to set the datasets individually because we are
1519	# tracking them in _comp2scale.
1520	foreach dataset [CurrentDatasets -all] {
1521	SendCmd "heightmap heightscale $scale $dataset"
1522	set _comp2scale($dataset) $scale
1523	}
1524	if { $bool } {
1525	$itk_component(lighting) configure -state normal
1526	$itk_component(opacity) configure -state normal
1527	$itk_component(scale) configure -state normal
1528	$itk_component(opacity_l) configure -state normal
1529	$itk_component(scale_l) configure -state normal
1530	$itk_component(outline) configure -state disabled
1531	if {$_view(ortho)} {
1532	SendCmd "camera mode ortho"
1533	} else {
1534	SendCmd "camera mode persp"
1535	}
1536	} else {
1537	$itk_component(lighting) configure -state disabled
1538	$itk_component(opacity) configure -state disabled
1539	$itk_component(scale) configure -state disabled
1540	$itk_component(opacity_l) configure -state disabled
1541	$itk_component(scale_l) configure -state disabled
1542	$itk_component(outline) configure -state normal
1543	SendCmd "camera mode image"
1544	}
1545	if {$_settings(-stretchtofit)} {
1546	if {$scale == 0} {
1547	SendCmd "camera aspect window"
1548	} else {
1549	SendCmd "camera aspect square"
1550	}
1551	}
1552	ResetAxes
1553	if { $bool } {
1554	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1555	$_arcball quaternion $q
1556	SendCmd "camera orient $q"
1557	} else {
1558	bind $c <ButtonPress-1> {}
1559	bind $c <B1-Motion> {}
1560	bind $c <ButtonRelease-1> {}
1561	}
1562	Zoom reset
1563	# Fix the mouse bindings for rotation/panning and the
1564	# camera mode. Ideally we'd create a bindtag for these.
1565	if { $bool } {
1566	# Bindings for rotation via mouse
1567	bind $c <ButtonPress-1> \
1568	[itcl::code $this Rotate click %x %y]
1569	bind $c <B1-Motion> \
1570	[itcl::code $this Rotate drag %x %y]
1571	bind $c <ButtonRelease-1> \
1572	[itcl::code $this Rotate release %x %y]
1573	}
1574	StopBufferingCommands
1575	}
1576	"-isolinecolor" {
1577	set color [$itk_component(isolinecolor) value]
1578	if { $color == "none" } {
1579	if { $_settings(-isolinesvisible) } {
1580	SendCmd "heightmap isolines 0"
1581	set _settings(-isolinesvisible) 0
1582	}
1583	} else {
1584	if { !$_settings(-isolinesvisible) } {
1585	SendCmd "heightmap isolines 1"
1586	set _settings(-isolinesvisible) 1
1587	}
1588	SendCmd "heightmap isolinecolor [Color2RGB $color]"
1589	}
1590	DrawLegend
1591	}
1592	"-isolinesvisible" {
1593	set bool $_settings($what)
1594	SendCmd "heightmap isolines $bool"
1595	DrawLegend
1596	}
1597	"-legendvisible" {
1598	if { !$_settings($what) } {
1599	$itk_component(view) delete legend
1600	}
1601	DrawLegend
1602	}
1603	"-lighting" {
1604	if { $_settings(-isheightmap) } {
1605	set _settings(-savelighting) $_settings(-lighting)
1606	set bool $_settings($what)
1607	SendCmd "heightmap lighting $bool"
1608	} else {
1609	SendCmd "heightmap lighting 0"
1610	}
1611	}
1612	"-numisolines" {
1613	set _settings($what) [$itk_component(numisolines) value]
1614	set _currentNumIsolines $_settings($what)
1615	UpdateContourList
1616	set _changed($what) 1
1617	SendCmd "heightmap contourlist [list $_contourList]"
1618	if {$_settings(-colormapdiscrete)} {
1619	set numColors [expr $_settings($what) + 1]
1620	SendCmd "colormap res $numColors"
1621	EventuallyRequestLegend
1622	} else {
1623	DrawLegend
1624	}
1625	}
1626	"-opacity" {
1627	set _changed($what) 1
1628	set _settings($what) [expr double($_currentOpacity) * 0.01]
1629	if { $_settings(-isheightmap) } {
1630	set _settings(-saveopacity) $_settings($what)
1631	SendCmd "heightmap opacity $_settings($what)"
1632	} else {
1633	SendCmd "heightmap opacity 1.0"
1634	}
1635	}
1636	"-outline" {
1637	if { $_settings(-isheightmap) } {
1638	SendCmd "outline visible 0"
1639	} else {
1640	set _settings(-saveoutline) $_settings($what)
1641	set bool $_settings($what)
1642	SendCmd "outline visible $bool"
1643	}
1644	}
1645	"-stretchtofit" {
1646	set bool $_settings($what)
1647	if { $bool } {
1648	set heightScale [GetHeightmapScale]
1649	if {$heightScale == 0} {
1650	SendCmd "camera aspect window"
1651	} else {
1652	SendCmd "camera aspect square"
1653	}
1654	} else {
1655	SendCmd "camera aspect native"
1656	}
1657	Zoom reset
1658	}
1659	"-wireframe" {
1660	set bool $_settings($what)
1661	SendCmd "heightmap wireframe $bool"
1662	}
1663	default {
1664	error "don't know how to fix $what"
1665	}
1666	}
1667	}
1668
1669	#
1670	# RequestLegend --
1671	#
1672	# Request a new legend from the server. The size of the legend
1673	# is determined from the height of the canvas.
1674	#
1675	# This should be called when
1676	# 1. A new current colormap is set.
1677	# 2. Window is resized.
1678	# 3. The limits of the data have changed. (Just need a redraw).
1679	# 4. Number of isolines have changed. (Just need a redraw).
1680	# 5. Legend becomes visible (Just need a redraw).
1681	#
1682	itcl::body Rappture::VtkHeightmapViewer::RequestLegend {} {
1683	set _legendPending 0
1684	set font "Arial 8"
1685	set w 12
1686	set lineht [font metrics $font -linespace]
1687	# color ramp height = (canvas height) - (min and max value lines) - 2
1688	set h [expr {$_height - 2 * ($lineht + 2)}]
1689	set _legendHeight $h
1690
1691	set fname $_curFldName
1692	if { [string match "component*" $fname] } {
1693	set title ""
1694	} else {
1695	if { [info exists _fields($fname)] } {
1696	foreach { title units } $_fields($fname) break
1697	if { $units != "" } {
1698	set title [format "%s (%s)" $title $units]
1699	}
1700	} else {
1701	set title $fname
1702	}
1703	}
1704	# If there's a title too, substract one more line
1705	if { $title != "" } {
1706	incr h -$lineht
1707	}
1708	if { $h < 1 } {
1709	return
1710	}
1711	# Set the legend on the first heightmap dataset.
1712	if { $_currentColormap != "" } {
1713	set cmap $_currentColormap
1714	SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1715	}
1716	}
1717
1718	#
1719	# ResetAxes --
1720	#
1721	# Set axis z bounds and range
1722	#
1723	itcl::body Rappture::VtkHeightmapViewer::ResetAxes {} {
1724	if { ![info exists _limits($_curFldName)]} {
1725	SendCmd "dataset maprange all"
1726	SendCmd "axis autorange z on"
1727	SendCmd "axis autobounds z on"
1728	return
1729	}
1730	foreach { xmin xmax } $_limits(x) break
1731	foreach { ymin ymax } $_limits(y) break
1732	foreach { vmin vmax } $_limits($_curFldName) break
1733
1734	global tcl_precision
1735	set tcl_precision 17
1736	set xr [expr $xmax - $xmin]
1737	set yr [expr $ymax - $ymin]
1738	set vr [expr $vmax - $vmin]
1739	set r [expr ($yr > $xr) ? $yr : $xr]
1740	if { $vr < 1.0e-17 } {
1741	set dataScale 1.0
1742	} else {
1743	set dataScale [expr $r / $vr]
1744	}
1745	set heightScale [GetHeightmapScale]
1746	set bmin [expr $heightScale * $dataScale * $vmin]
1747	set bmax [expr $heightScale * $dataScale * $vmax]
1748	if {$heightScale > 0} {
1749	set zpos [expr - $bmin]
1750	SendCmd "heightmap pos 0 0 $zpos"
1751	} else {
1752	SendCmd "heightmap pos 0 0 0"
1753	}
1754	set bmax [expr $bmax - $bmin]
1755	set bmin 0
1756	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1757	SendCmd "axis bounds z $bmin $bmax"
1758	SendCmd "axis range z $_limits($_curFldName)"
1759	}
1760
1761	#
1762	# SetCurrentColormap --
1763	#
1764	itcl::body Rappture::VtkHeightmapViewer::SetCurrentColormap { name } {
1765	# Keep track of the colormaps that we build.
1766	if { $name != "none" && ![info exists _colormaps($name)] } {
1767	BuildColormap $name
1768	set _colormaps($name) 1
1769	}
1770	set _currentColormap $name
1771	SendCmd "heightmap colormap $_currentColormap"
1772	}
1773
1774
1775	#
1776	# BuildColormap --
1777	#
1778	# Build the designated colormap on the server.
1779	#
1780	itcl::body Rappture::VtkHeightmapViewer::BuildColormap { name } {
1781	set cmap [ColorsToColormap $name]
1782	if { [llength $cmap] == 0 } {
1783	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1784	}
1785	set wmap "0.0 1.0 1.0 1.0"
1786	SendCmd "colormap add $name { $cmap } { $wmap }"
1787	}
1788
1789	# ----------------------------------------------------------------------
1790	# CONFIGURATION OPTION: -mode
1791	# ----------------------------------------------------------------------
1792	itcl::configbody Rappture::VtkHeightmapViewer::mode {
1793	switch -- $itk_option(-mode) {
1794	"heightmap" {
1795	set _settings(-isheightmap) 1
1796	}
1797	"contour" {
1798	set _settings(-isheightmap) 0
1799	}
1800	default {
1801	error "unknown mode settings \"$itk_option(-mode)\""
1802	}
1803	}
1804	if { !$_reset } {
1805	AdjustSetting -isheightmap
1806	}
1807	}
1808
1809	# ----------------------------------------------------------------------
1810	# CONFIGURATION OPTION: -plotbackground
1811	# ----------------------------------------------------------------------
1812	itcl::configbody Rappture::VtkHeightmapViewer::plotbackground {
1813	if { [isconnected] } {
1814	set rgb [Color2RGB $itk_option(-plotbackground)]
1815	if { !$_reset } {
1816	SendCmd "screen bgcolor $rgb"
1817	}
1818	$itk_component(view) configure -background $itk_option(-plotbackground)
1819	}
1820	}
1821
1822	# ----------------------------------------------------------------------
1823	# CONFIGURATION OPTION: -plotforeground
1824	# ----------------------------------------------------------------------
1825	itcl::configbody Rappture::VtkHeightmapViewer::plotforeground {
1826	if { [isconnected] } {
1827	set rgb [Color2RGB $itk_option(-plotforeground)]
1828	if { !$_reset } {
1829	SendCmd "outline color $rgb"
1830	SendCmd "axis color all $rgb"
1831	}
1832	}
1833	}
1834
1835	itcl::body Rappture::VtkHeightmapViewer::limits3 { dataobj } {
1836	lappend limits x [$dataobj limits x]
1837	lappend limits y [$dataobj limits y]
1838	if { [catch { $dataobj limits $_curFldName } vlim] != 0 } {
1839	set vlim [$dataobj limits v]
1840	}
1841	lappend limits v $vlim
1842	return $limits
1843	}
1844
1845	itcl::body Rappture::VtkHeightmapViewer::BuildContourTab {} {
1846
1847	set fg [option get $itk_component(hull) font Font]
1848	#set bfg [option get $itk_component(hull) boldFont Font]
1849
1850	set inner [$itk_component(main) insert end \
1851	-title "Contour/Surface Settings" \
1852	-icon [Rappture::icon contour2]]
1853	$inner configure -borderwidth 4
1854
1855	checkbutton $inner.legend \
1856	-text "Legend" \
1857	-variable [itcl::scope _settings(-legendvisible)] \
1858	-command [itcl::code $this AdjustSetting -legendvisible] \
1859	-font "Arial 9"
1860
1861	checkbutton $inner.wireframe \
1862	-text "Wireframe" \
1863	-variable [itcl::scope _settings(-wireframe)] \
1864	-command [itcl::code $this AdjustSetting -wireframe] \
1865	-font "Arial 9"
1866
1867	itk_component add lighting {
1868	checkbutton $inner.lighting \
1869	-text "Enable Lighting" \
1870	-variable [itcl::scope _settings(-lighting)] \
1871	-command [itcl::code $this AdjustSetting -lighting] \
1872	-font "Arial 9"
1873	} {
1874	ignore -font
1875	}
1876	checkbutton $inner.edges \
1877	-text "Edges" \
1878	-variable [itcl::scope _settings(-edges)] \
1879	-command [itcl::code $this AdjustSetting -edges] \
1880	-font "Arial 9"
1881
1882	itk_component add outline {
1883	checkbutton $inner.outline \
1884	-text "Outline" \
1885	-variable [itcl::scope _settings(-outline)] \
1886	-command [itcl::code $this AdjustSetting -outline] \
1887	-font "Arial 9"
1888	} {
1889	ignore -font
1890	}
1891	checkbutton $inner.stretch \
1892	-text "Stretch to fit" \
1893	-variable [itcl::scope _settings(-stretchtofit)] \
1894	-command [itcl::code $this AdjustSetting -stretchtofit] \
1895	-font "Arial 9"
1896
1897	checkbutton $inner.isolines \
1898	-text "Isolines" \
1899	-variable [itcl::scope _settings(-isolinesvisible)] \
1900	-command [itcl::code $this AdjustSetting -isolinesvisible] \
1901	-font "Arial 9"
1902
1903	checkbutton $inner.colormapDiscrete \
1904	-text "Discrete Colormap" \
1905	-variable [itcl::scope _settings(-colormapdiscrete)] \
1906	-command [itcl::code $this AdjustSetting -colormapdiscrete] \
1907	-font "Arial 9"
1908
1909	itk_component add field_l {
1910	label $inner.field_l -text "Field" -font "Arial 9"
1911	} {
1912	ignore -font
1913	}
1914	itk_component add field {
1915	Rappture::Combobox $inner.field -width 10 -editable no
1916	}
1917	bind $inner.field <<Value>> \
1918	[itcl::code $this AdjustSetting -field]
1919
1920	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1921	itk_component add colormap {
1922	Rappture::Combobox $inner.colormap -width 10 -editable no
1923	}
1924	$inner.colormap choices insert end \
1925	"BCGYR" "BCGYR" \
1926	"BGYOR" "BGYOR" \
1927	"blue" "blue" \
1928	"blue-to-brown" "blue-to-brown" \
1929	"blue-to-orange" "blue-to-orange" \
1930	"blue-to-grey" "blue-to-grey" \
1931	"green-to-magenta" "green-to-magenta" \
1932	"greyscale" "greyscale" \
1933	"nanohub" "nanohub" \
1934	"rainbow" "rainbow" \
1935	"spectral" "spectral" \
1936	"ROYGB" "ROYGB" \
1937	"RYGCB" "RYGCB" \
1938	"brown-to-blue" "brown-to-blue" \
1939	"grey-to-blue" "grey-to-blue" \
1940	"orange-to-blue" "orange-to-blue" \
1941	"none" "none"
1942
1943	$itk_component(colormap) value "BCGYR"
1944	bind $inner.colormap <<Value>> \
1945	[itcl::code $this AdjustSetting -colormap]
1946
1947	label $inner.isolinecolor_l -text "Isolines Color" -font "Arial 9"
1948	itk_component add isolinecolor {
1949	Rappture::Combobox $inner.isolinecolor -width 10 -editable no
1950	}
1951	$inner.isolinecolor choices insert end \
1952	"black" "black" \
1953	"blue" "blue" \
1954	"cyan" "cyan" \
1955	"green" "green" \
1956	"grey" "grey" \
1957	"magenta" "magenta" \
1958	"orange" "orange" \
1959	"red" "red" \
1960	"white" "white" \
1961	"none" "none"
1962
1963	$itk_component(isolinecolor) value "black"
1964	bind $inner.isolinecolor <<Value>> \
1965	[itcl::code $this AdjustSetting -isolinecolor]
1966
1967	label $inner.background_l -text "Background Color" -font "Arial 9"
1968	itk_component add background {
1969	Rappture::Combobox $inner.background -width 10 -editable no
1970	}
1971	$inner.background choices insert end \
1972	"black" "black" \
1973	"white" "white" \
1974	"grey" "grey"
1975
1976	$itk_component(background) value "white"
1977	bind $inner.background <<Value>> \
1978	[itcl::code $this AdjustSetting -background]
1979
1980	itk_component add opacity_l {
1981	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1982	} {
1983	ignore -font
1984	}
1985	itk_component add opacity {
1986	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1987	-variable [itcl::scope _currentOpacity] \
1988	-showvalue off \
1989	-command [itcl::code $this AdjustSetting -opacity]
1990	}
1991	itk_component add scale_l {
1992	label $inner.scale_l -text "Scale" -font "Arial 9"
1993	} {
1994	ignore -font
1995	}
1996	itk_component add scale {
1997	::scale $inner.scale -from 0 -to 100 -orient horizontal \
1998	-variable [itcl::scope _settings(-heightmapscale)] \
1999	-showvalue off \
2000	-command [itcl::code $this AdjustSetting -heightmapscale]
2001	}
2002	label $inner.numisolines_l -text "Number of Isolines" -font "Arial 9"
2003	itk_component add numisolines {
2004	Rappture::Spinint $inner.numisolines \
2005	-min 0 -max 50 -font "arial 9"
2006	}
2007	$itk_component(numisolines) value $_settings(-numisolines)
2008	bind $itk_component(numisolines) <<Value>> \
2009	[itcl::code $this AdjustSetting -numisolines]
2010
2011	frame $inner.separator1 -height 2 -relief sunken -bd 1
2012	frame $inner.separator2 -height 2 -relief sunken -bd 1
2013
2014	blt::table $inner \
2015	0,0 $inner.field_l -anchor w -pady 2 \
2016	0,1 $inner.field -anchor w -pady 2 -fill x \
2017	1,0 $inner.colormap_l -anchor w -pady 2 \
2018	1,1 $inner.colormap -anchor w -pady 2 -fill x \
2019	2,0 $inner.isolinecolor_l -anchor w -pady 2 \
2020	2,1 $inner.isolinecolor -anchor w -pady 2 -fill x \
2021	3,0 $inner.background_l -anchor w -pady 2 \
2022	3,1 $inner.background -anchor w -pady 2 -fill x \
2023	4,0 $inner.numisolines_l -anchor w -pady 2 \
2024	4,1 $inner.numisolines -anchor w -pady 2 \
2025	5,0 $inner.stretch -anchor w -pady 2 -cspan 2 \
2026	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
2027	7,0 $inner.legend -anchor w -pady 2 -cspan 2 \
2028	8,0 $inner.colormapDiscrete -anchor w -pady 2 -cspan 2 \
2029	9,0 $inner.wireframe -anchor w -pady 2 -cspan 2\
2030	10,0 $inner.isolines -anchor w -pady 2 -cspan 2 \
2031	11,0 $inner.separator1 -padx 2 -fill x -cspan 2 \
2032	12,0 $inner.outline -anchor w -pady 2 -cspan 2 \
2033	13,0 $inner.separator2 -padx 2 -fill x -cspan 2 \
2034	14,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
2035	15,0 $inner.opacity_l -anchor w -pady 2 \
2036	15,1 $inner.opacity -fill x -pady 2 \
2037	16,0 $inner.scale_l -anchor w -pady 2 -cspan 2 \
2038	16,1 $inner.scale -fill x -pady 2 -cspan 2 \
2039
2040	blt::table configure $inner r* c* -resize none
2041	blt::table configure $inner r17 c1 -resize expand
2042	}
2043
2044	itcl::body Rappture::VtkHeightmapViewer::BuildAxisTab {} {
2045
2046	set fg [option get $itk_component(hull) font Font]
2047	#set bfg [option get $itk_component(hull) boldFont Font]
2048
2049	set inner [$itk_component(main) insert end \
2050	-title "Axis Settings" \
2051	-icon [Rappture::icon axis2]]
2052	$inner configure -borderwidth 4
2053
2054	checkbutton $inner.visible \
2055	-text "Axes" \
2056	-variable [itcl::scope _settings(-axisvisible)] \
2057	-command [itcl::code $this AdjustSetting -axisvisible] \
2058	-font "Arial 9"
2059	checkbutton $inner.labels \
2060	-text "Axis Labels" \
2061	-variable [itcl::scope _settings(-axislabels)] \
2062	-command [itcl::code $this AdjustSetting -axislabels] \
2063	-font "Arial 9"
2064	label $inner.grid_l -text "Grid" -font "Arial 9"
2065	checkbutton $inner.xgrid \
2066	-text "X" \
2067	-variable [itcl::scope _settings(-xgrid)] \
2068	-command [itcl::code $this AdjustSetting -xgrid] \
2069	-font "Arial 9"
2070	checkbutton $inner.ygrid \
2071	-text "Y" \
2072	-variable [itcl::scope _settings(-ygrid)] \
2073	-command [itcl::code $this AdjustSetting -ygrid] \
2074	-font "Arial 9"
2075	checkbutton $inner.zgrid \
2076	-text "Z" \
2077	-variable [itcl::scope _settings(-zgrid)] \
2078	-command [itcl::code $this AdjustSetting -zgrid] \
2079	-font "Arial 9"
2080	checkbutton $inner.minorticks \
2081	-text "Minor Ticks" \
2082	-variable [itcl::scope _settings(-axisminorticks)] \
2083	-command [itcl::code $this AdjustSetting -axisminorticks] \
2084	-font "Arial 9"
2085
2086
2087	label $inner.mode_l -text "Mode" -font "Arial 9"
2088
2089	itk_component add axisflymode {
2090	Rappture::Combobox $inner.mode -width 10 -editable no
2091	}
2092	$inner.mode choices insert end \
2093	"static_triad" "static" \
2094	"closest_triad" "closest" \
2095	"furthest_triad" "farthest" \
2096	"outer_edges" "outer"
2097	$itk_component(axisflymode) value "static"
2098	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axisflymode]
2099
2100	blt::table $inner \
2101	0,0 $inner.visible -anchor w -cspan 4 \
2102	1,0 $inner.labels -anchor w -cspan 4 \
2103	2,0 $inner.minorticks -anchor w -cspan 4 \
2104	4,0 $inner.grid_l -anchor w \
2105	4,1 $inner.xgrid -anchor w \
2106	4,2 $inner.ygrid -anchor w \
2107	4,3 $inner.zgrid -anchor w \
2108	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
2109	5,1 $inner.mode -fill x -cspan 3
2110
2111	blt::table configure $inner r* c* -resize none
2112	blt::table configure $inner r7 c6 -resize expand
2113	blt::table configure $inner r3 -height 0.125i
2114	}
2115
2116
2117	itcl::body Rappture::VtkHeightmapViewer::BuildCameraTab {} {
2118	set inner [$itk_component(main) insert end \
2119	-title "Camera Settings" \
2120	-icon [Rappture::icon camera]]
2121	$inner configure -borderwidth 4
2122
2123	label $inner.view_l -text "view" -font "Arial 9"
2124	set f [frame $inner.view]
2125	foreach side { front back left right top bottom } {
2126	button $f.$side -image [Rappture::icon view$side] \
2127	-command [itcl::code $this SetOrientation $side]
2128	Rappture::Tooltip::for $f.$side "Change the view to $side"
2129	pack $f.$side -side left
2130	}
2131
2132	blt::table $inner \
2133	0,0 $inner.view_l -anchor e -pady 2 \
2134	0,1 $inner.view -anchor w -pady 2
2135
2136	set labels { qx qy qz qw xpan ypan zoom }
2137	set row 1
2138	foreach tag $labels {
2139	label $inner.${tag}label -text $tag -font "Arial 9"
2140	entry $inner.${tag} -font "Arial 9" -bg white \
2141	-textvariable [itcl::scope _view($tag)]
2142	bind $inner.${tag} <Return> \
2143	[itcl::code $this camera set ${tag}]
2144	bind $inner.${tag} <KP_Enter> \
2145	[itcl::code $this camera set ${tag}]
2146	blt::table $inner \
2147	$row,0 $inner.${tag}label -anchor e -pady 2 \
2148	$row,1 $inner.${tag} -anchor w -pady 2
2149	blt::table configure $inner r$row -resize none
2150	incr row
2151	}
2152	checkbutton $inner.ortho \
2153	-text "Orthographic Projection" \
2154	-variable [itcl::scope _view(ortho)] \
2155	-command [itcl::code $this camera set ortho] \
2156	-font "Arial 9"
2157	blt::table $inner \
2158	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2159	blt::table configure $inner r$row -resize none
2160	incr row
2161
2162	blt::table configure $inner c* r* -resize none
2163	blt::table configure $inner c2 -resize expand
2164	blt::table configure $inner r$row -resize expand
2165	}
2166
2167	#
2168	# camera --
2169	#
2170	itcl::body Rappture::VtkHeightmapViewer::camera {option args} {
2171	switch -- $option {
2172	"show" {
2173	puts [array get _view]
2174	}
2175	"set" {
2176	set who [lindex $args 0]
2177	set x $_view($who)
2178	set code [catch { string is double $x } result]
2179	if { $code != 0 \|\| !$result } {
2180	return
2181	}
2182	switch -- $who {
2183	"ortho" {
2184	if {$_view(ortho)} {
2185	SendCmd "camera mode ortho"
2186	} else {
2187	SendCmd "camera mode persp"
2188	}
2189	}
2190	"xpan" - "ypan" {
2191	PanCamera
2192	}
2193	"qx" - "qy" - "qz" - "qw" {
2194	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2195	$_arcball quaternion $q
2196	EventuallyRotate $q
2197	}
2198	"zoom" {
2199	SendCmd "camera zoom $_view(zoom)"
2200	}
2201	}
2202	}
2203	}
2204	}
2205
2206	itcl::body Rappture::VtkHeightmapViewer::GetVtkData { args } {
2207	set bytes ""
2208	foreach dataobj [get] {
2209	foreach comp [$dataobj components] {
2210	set tag $dataobj-$comp
2211	set contents [$dataobj vtkdata $comp]
2212	append bytes "$contents\n"
2213	}
2214	}
2215	return [list .vtk $bytes]
2216	}
2217
2218	itcl::body Rappture::VtkHeightmapViewer::GetImage { args } {
2219	if { [image width $_image(download)] > 0 &&
2220	[image height $_image(download)] > 0 } {
2221	set bytes [$_image(download) data -format "jpeg -quality 100"]
2222	set bytes [Rappture::encoding::decode -as b64 $bytes]
2223	return [list .jpg $bytes]
2224	}
2225	return ""
2226	}
2227
2228	itcl::body Rappture::VtkHeightmapViewer::BuildDownloadPopup { popup command } {
2229	Rappture::Balloon $popup \
2230	-title "[Rappture::filexfer::label downloadWord] as..."
2231	set inner [$popup component inner]
2232	label $inner.summary -text "" -anchor w
2233	radiobutton $inner.vtk_button -text "VTK data file" \
2234	-variable [itcl::scope _downloadPopup(format)] \
2235	-font "Arial 9 " \
2236	-value vtk
2237	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2238	radiobutton $inner.image_button -text "Image File" \
2239	-variable [itcl::scope _downloadPopup(format)] \
2240	-font "Arial 9 " \
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	#
2271	# SetObjectStyle --
2272	#
2273	# Set the style of the heightmap/contour object. This gets calls
2274	# for each dataset once as it is loaded. It can overridden by
2275	# the user controls.
2276	#
2277	#
2278	itcl::body Rappture::VtkHeightmapViewer::SetObjectStyle { dataobj comp } {
2279	# Parse style string.
2280	set tag $dataobj-$comp
2281	array set style {
2282	-color BCGYR
2283	-opacity 1.0
2284	-levels 10
2285	}
2286	set stylelist [$dataobj style $comp]
2287	if { $stylelist != "" } {
2288	array set style $stylelist
2289	}
2290	# This is too complicated. We want to set the colormap, number of
2291	# isolines and opacity for the dataset. They can be the default values,
2292	# the style hints loaded with the dataset, or set by user controls. As
2293	# datasets get loaded, they first use the defaults that are overidden
2294	# by the style hints. If the user changes the global controls, then that
2295	# overrides everything else. I don't know what it means when global
2296	# controls are specified as style hints by each dataset. It complicates
2297	# the code to handle aberrant cases.
2298
2299	if { $_changed(-opacity) } {
2300	set style(-opacity) $_settings(-opacity)
2301	}
2302	if { $_changed(-numisolines) } {
2303	set style(-levels) $_settings-(numisolines)
2304	}
2305	if { $_changed(-colormap) } {
2306	set style(-color) $_settings(-colormap)
2307	}
2308	if { $_currentColormap == "" } {
2309	$itk_component(colormap) value $style(-color)
2310	}
2311	if { [info exists style(-stretchtofit)] } {
2312	set _settings(-stretchtofit) $style(-stretchtofit)
2313	AdjustSetting -stretchtofit
2314	}
2315	set _currentOpacity [expr $style(-opacity) * 100.0]
2316
2317	if { $_currentNumIsolines != $style(-levels) } {
2318	set _currentNumIsolines $style(-levels)
2319	set _settings(-numisolines) $_currentNumIsolines
2320	$itk_component(numisolines) value $_currentNumIsolines
2321	UpdateContourList
2322	DrawLegend
2323	}
2324	SendCmd "outline add $tag"
2325	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2326	SendCmd "outline visible $_settings(-outline) $tag"
2327	set scale [GetHeightmapScale]
2328	SendCmd "[list heightmap add contourlist $_contourList $scale $tag]"
2329	set _comp2scale($tag) $_settings(-heightmapscale)
2330	SendCmd "heightmap edges $_settings(-edges) $tag"
2331	SendCmd "heightmap wireframe $_settings(-wireframe) $tag"
2332	SetCurrentColormap $style(-color)
2333	set color [$itk_component(isolinecolor) value]
2334	SendCmd "heightmap isolinecolor [Color2RGB $color] $tag"
2335	SendCmd "heightmap lighting $_settings(-isheightmap) $tag"
2336	SendCmd "heightmap isolines $_settings(-isolinesvisible) $tag"
2337	SendCmd "heightmap surface $_settings(-colormapvisible) $tag"
2338	}
2339
2340	itcl::body Rappture::VtkHeightmapViewer::IsValidObject { dataobj } {
2341	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2342	return 0
2343	}
2344	return 1
2345	}
2346
2347	# ----------------------------------------------------------------------
2348	# USAGE: ReceiveLegend <colormap> <title> <min> <max> <size>
2349	#
2350	# Invoked automatically whenever the "legend" command comes in from
2351	# the rendering server. Indicates that binary image data with the
2352	# specified <size> will follow.
2353	# ----------------------------------------------------------------------
2354	itcl::body Rappture::VtkHeightmapViewer::ReceiveLegend { colormap title min max size } {
2355	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2356	if { [isconnected] } {
2357	set bytes [ReceiveBytes $size]
2358	if { ![info exists _image(legend)] } {
2359	set _image(legend) [image create photo]
2360	}
2361	$_image(legend) configure -data $bytes
2362	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2363	if { [catch {DrawLegend} errs] != 0 } {
2364	global errorInfo
2365	puts stderr "errs=$errs errorInfo=$errorInfo"
2366	}
2367	}
2368	}
2369
2370	#
2371	# DrawLegend --
2372	#
2373	# Draws the legend in the own canvas on the right side of the plot area.
2374	#
2375	itcl::body Rappture::VtkHeightmapViewer::DrawLegend {} {
2376	set fname $_curFldName
2377	set c $itk_component(view)
2378	set w [winfo width $c]
2379	set h [winfo height $c]
2380	set font "Arial 8"
2381	set lineht [font metrics $font -linespace]
2382
2383	if { [string match "component*" $fname] } {
2384	set title ""
2385	} else {
2386	if { [info exists _fields($fname)] } {
2387	foreach { title units } $_fields($fname) break
2388	if { $units != "" } {
2389	set title [format "%s (%s)" $title $units]
2390	}
2391	} else {
2392	set title $fname
2393	}
2394	}
2395	set x [expr $w - 2]
2396	if { !$_settings(-legendvisible) } {
2397	$c delete legend
2398	return
2399	}
2400	if { [$c find withtag "legend"] == "" } {
2401	set y 2
2402	# If there's a legend title, create a text item for the title.
2403	$c create text $x $y \
2404	-anchor ne \
2405	-fill $itk_option(-plotforeground) -tags "title legend" \
2406	-font $font
2407	$c create text $x $y \
2408	-anchor ne \
2409	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2410	-font $font
2411	incr y $lineht
2412	$c create image $x $y \
2413	-anchor ne \
2414	-image $_image(legend) -tags "colormap legend"
2415	$c create rectangle $x $y 1 1 \
2416	-fill "" -outline "" -tags "sensor legend"
2417	$c create text $x [expr {$h-2}] \
2418	-anchor se \
2419	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2420	-font $font
2421	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2422	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2423	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2424	}
2425	$c delete isoline
2426	set x2 $x
2427	set iw [image width $_image(legend)]
2428	set ih [image height $_image(legend)]
2429	set x1 [expr $x2 - ($iw*12)/10]
2430	set color [$itk_component(isolinecolor) value]
2431
2432	# Draw the isolines on the legend.
2433	array unset _isolines
2434	if { $color != "none" && [info exists _limits($_curFldName)] &&
2435	$_settings(-isolinesvisible) && $_currentNumIsolines > 0 } {
2436
2437	foreach { vmin vmax } $_limits($_curFldName) break
2438	set range [expr double($vmax - $vmin)]
2439	if { $range <= 0.0 } {
2440	set range 1.0; # Min is greater or equal to max.
2441	}
2442	set tags "isoline legend"
2443	set offset [expr 2 + $lineht]
2444	if { $title != "" } {
2445	incr offset $lineht
2446	}
2447	foreach value $_contourList {
2448	set norm [expr 1.0 - (($value - $vmin) / $range)]
2449	set y1 [expr int(round(($norm * $ih) + $offset))]
2450	for { set off 0 } { $off < 3 } { incr off } {
2451	set _isolines([expr $y1 + $off]) $value
2452	set _isolines([expr $y1 - $off]) $value
2453	}
2454	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2455	}
2456	}
2457
2458	$c bind title <ButtonPress> [itcl::code $this Combo post]
2459	$c bind title <Enter> [itcl::code $this Combo activate]
2460	$c bind title <Leave> [itcl::code $this Combo deactivate]
2461	# Reset the item coordinates according the current size of the plot.
2462	if { [info exists _limits($_curFldName)] } {
2463	foreach { vmin vmax } $_limits($_curFldName) break
2464	$c itemconfigure vmin -text [format %g $vmin]
2465	$c itemconfigure vmax -text [format %g $vmax]
2466	}
2467	set y 2
2468	# If there's a legend title, move the title to the correct position
2469	if { $title != "" } {
2470	$c itemconfigure title -text $title
2471	$c coords title $x $y
2472	incr y $lineht
2473	}
2474	$c coords vmax $x $y
2475	incr y $lineht
2476	$c coords colormap $x $y
2477	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2478	$c raise sensor
2479	$c coords vmin $x [expr {$h - 2}]
2480	}
2481
2482	#
2483	# EnterLegend --
2484	#
2485	itcl::body Rappture::VtkHeightmapViewer::EnterLegend { x y } {
2486	SetLegendTip $x $y
2487	}
2488
2489	#
2490	# MotionLegend --
2491	#
2492	itcl::body Rappture::VtkHeightmapViewer::MotionLegend { x y } {
2493	Rappture::Tooltip::tooltip cancel
2494	set c $itk_component(view)
2495	set cw [winfo width $c]
2496	set ch [winfo height $c]
2497	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2498	SetLegendTip $x $y
2499	}
2500	}
2501
2502	#
2503	# LeaveLegend --
2504	#
2505	itcl::body Rappture::VtkHeightmapViewer::LeaveLegend { } {
2506	Rappture::Tooltip::tooltip cancel
2507	.rappturetooltip configure -icon ""
2508	}
2509
2510	#
2511	# SetLegendTip --
2512	#
2513	itcl::body Rappture::VtkHeightmapViewer::SetLegendTip { x y } {
2514	set fname $_curFldName
2515	set c $itk_component(view)
2516	set w [winfo width $c]
2517	set h [winfo height $c]
2518	set font "Arial 8"
2519	set lineht [font metrics $font -linespace]
2520
2521	set ih [image height $_image(legend)]
2522	# Subtract off the offset of the color ramp from the top of the canvas
2523	set iy [expr $y - ($lineht + 2)]
2524
2525	if { [string match "component*" $fname] } {
2526	set title ""
2527	} else {
2528	if { [info exists _fields($fname)] } {
2529	foreach { title units } $_fields($fname) break
2530	if { $units != "" } {
2531	set title [format "%s (%s)" $title $units]
2532	}
2533	} else {
2534	set title $fname
2535	}
2536	}
2537	# If there's a legend title, increase the offset by the line height.
2538	if { $title != "" } {
2539	incr iy -$lineht
2540	}
2541
2542	# Make a swatch of the selected color
2543	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2544	return
2545	}
2546
2547	if { ![info exists _image(swatch)] } {
2548	set _image(swatch) [image create photo -width 24 -height 24]
2549	}
2550	set color [eval format "\#%02x%02x%02x" $pixel]
2551	$_image(swatch) put black -to 0 0 23 23
2552	$_image(swatch) put $color -to 1 1 22 22
2553
2554	# Compute the value of the point
2555	if { [info exists _limits($fname)] } {
2556	foreach { vmin vmax } $_limits($fname) break
2557	set t [expr 1.0 - (double($iy) / double($ih-1))]
2558	set value [expr $t * ($vmax - $vmin) + $vmin]
2559	} else {
2560	set value 0.0
2561	}
2562	set tipx [expr $x + 15]
2563	set tipy [expr $y - 5]
2564	.rappturetooltip configure -icon $_image(swatch)
2565	if { [info exists _isolines($y)] } {
2566	Rappture::Tooltip::text $c [format "$title %g (isoline)" $_isolines($y)]
2567	} else {
2568	Rappture::Tooltip::text $c [format "$title %g" $value]
2569	}
2570	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2571	}
2572
2573	# ----------------------------------------------------------------------
2574	# USAGE: _dropdown post
2575	# USAGE: _dropdown unpost
2576	# USAGE: _dropdown select
2577	#
2578	# Used internally to handle the dropdown list for this combobox. The
2579	# post/unpost options are invoked when the list is posted or unposted
2580	# to manage the relief of the controlling button. The select option
2581	# is invoked whenever there is a selection from the list, to assign
2582	# the value back to the gauge.
2583	# ----------------------------------------------------------------------
2584	itcl::body Rappture::VtkHeightmapViewer::Combo {option} {
2585	set c $itk_component(view)
2586	switch -- $option {
2587	post {
2588	foreach { x1 y1 x2 y2 } [$c bbox title] break
2589	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2590	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2591	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2592	tk_popup $itk_component(fieldmenu) $x $y
2593	}
2594	activate {
2595	$c itemconfigure title -fill red
2596	}
2597	deactivate {
2598	$c itemconfigure title -fill $itk_option(-plotforeground)
2599	}
2600	invoke {
2601	$itk_component(field) value $_curFldLabel
2602	AdjustSetting -field
2603	}
2604	default {
2605	error "bad option \"$option\": should be post, unpost, select"
2606	}
2607	}
2608	}
2609
2610	itcl::body Rappture::VtkHeightmapViewer::GetHeightmapScale {} {
2611	if { $_settings(-isheightmap) } {
2612	set val $_settings(-heightmapscale)
2613	set sval [expr { $val >= 50 ? double($val)/50.0 : 1.0/(2.0-(double($val)/50.0)) }]
2614	return $sval
2615	}
2616	return 0
2617	}
2618
2619	itcl::body Rappture::VtkHeightmapViewer::SetOrientation { side } {
2620	array set positions {
2621	front "0.707107 0.707107 0 0"
2622	back "0 0 0.707107 0.707107"
2623	left "0.5 0.5 -0.5 -0.5"
2624	right "0.5 0.5 0.5 0.5"
2625	top "1 0 0 0"
2626	bottom "0 1 0 0"
2627	}
2628	foreach name { qw qx qy qz } value $positions($side) {
2629	set _view($name) $value
2630	}
2631	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2632	$_arcball quaternion $q
2633	SendCmd "camera orient $q"
2634	SendCmd "camera reset"
2635	set _view(xpan) 0
2636	set _view(ypan) 0
2637	set _view(zoom) 1.0
2638	}
2639
2640	itcl::body Rappture::VtkHeightmapViewer::UpdateContourList {} {
2641	if {$_currentNumIsolines == 0} {
2642	set _contourList ""
2643	return
2644	}
2645	if { ![info exists _limits($_curFldName)] } {
2646	return
2647	}
2648	foreach { vmin vmax } $_limits($_curFldName) break
2649	set v [blt::vector create \#auto]
2650	$v seq $vmin $vmax [expr $_currentNumIsolines+2]
2651	$v delete end 0
2652	set _contourList [$v range 0 end]
2653	blt::vector destroy $v
2654	}

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