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source: trunk/gui/scripts/vtkheightmapviewer.tcl @ 3545

Last change on this file since 3545 was 3545, checked in by ldelgass, 11 years ago
Fix canonical orientations for Z-up in heightmap viewer. Set preinterp always on for now. Should be on when discrete color map is set, and need to add a setting otherwise (should default to on).
File size: 85.5 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 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 AdjustMode {}
73	protected method InitSettings { args }
74	protected method Pan {option x y}
75	protected method Pick {x y}
76	protected method Rebuild {}
77	protected method ReceiveDataset { args }
78	protected method ReceiveImage { args }
79	protected method ReceiveLegend { colormap title min max size }
80	protected method Rotate {option x y}
81	protected method Zoom {option}
82
83	# The following methods are only used by this class.
84	private method BuildAxisTab {}
85	private method BuildCameraTab {}
86	private method BuildColormap { name }
87	private method BuildContourTab {}
88	private method BuildDownloadPopup { widget command }
89	private method Combo { option }
90	private method ConvertToVtkData { dataobj comp }
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
110	private variable _arcball ""
111	private variable _dlist "" ; # list of data objects
112	private variable _obj2datasets
113	private variable _obj2ovride ; # maps dataobj => style override
114	private variable _comp2scale; # maps dataset to the heightmap scale.
115	private variable _datasets ; # contains all the dataobj-component
116	; # datasets in the server
117	private variable _colormaps ; # contains all the colormaps
118	; # in the server.
119
120	# The name of the current colormap used. The colormap is global to all
121	# heightmaps displayed.
122	private variable _currentColormap "" ;
123	private variable _currentNumIsolines "" ;
124	private variable _currentOpacity "" ;
125
126	private variable _click ; # info used for rotate operations
127	private variable _limits ; # Holds overall limits for all dataobjs
128	# using the viewer.
129	private variable _view ; # view params for 3D view
130	private variable _settings
131	private variable _changed
132	private variable _initialStyle ""; # First found style in dataobjects.
133	private variable _reset 1; # Indicates if camera needs to be reset
134	# to starting position.
135	private variable _beforeConnect 1; # Indicates if camera needs to be reset
136	# to starting position.
137
138	private variable _first "" ; # This is the topmost dataset.
139	private variable _start 0
140	private variable _isolines
141
142	common _downloadPopup; # download options from popup
143	private common _hardcopy
144	private variable _width 0
145	private variable _height 0
146	private variable _legendWidth 0
147	private variable _legendHeight 0
148	private variable _resizePending 0
149	private variable _rotatePending 0
150	private variable _legendPending 0
151	private variable _fieldNames {}
152	private variable _fields
153	private variable _curFldName ""
154	private variable _curFldLabel ""
155	private variable _colorMode "vmag";# Mode of colormap (vmag or scalar)
156	}
157
158	itk::usual VtkHeightmapViewer {
159	keep -background -foreground -cursor -font
160	keep -plotbackground -plotforeground -mode
161	}
162
163	# ----------------------------------------------------------------------
164	# CONSTRUCTOR
165	# ----------------------------------------------------------------------
166	itcl::body Rappture::VtkHeightmapViewer::constructor {hostlist args} {
167	set _serverType "vtkvis"
168
169	EnableWaitDialog 1000
170	# Rebuild event
171	$_dispatcher register !rebuild
172	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
173
174	# Resize event
175	$_dispatcher register !resize
176	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
177
178	# Rotate event
179	$_dispatcher register !rotate
180	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
181
182	# Legend event
183	$_dispatcher register !legend
184	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
185
186	#
187	# Populate parser with commands handle incoming requests
188	#
189	$_parser alias image [itcl::code $this ReceiveImage]
190	$_parser alias dataset [itcl::code $this ReceiveDataset]
191	$_parser alias legend [itcl::code $this ReceiveLegend]
192
193	# Initialize the view to some default parameters.
194	array set _view {
195	qw 0.36
196	qx 0.25
197	qy 0.50
198	qz 0.70
199	zoom 1.0
200	xpan 0
201	ypan 0
202	ortho 1
203	}
204	set _arcball [blt::arcball create 100 100]
205	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
206	$_arcball quaternion $q
207
208	array set _settings {
209	axisFlymode "static"
210	axisMinorTicks 1
211	stretchToFit 0
212	axisLabels 1
213	axisVisible 1
214	axisXGrid 0
215	axisYGrid 0
216	axisZGrid 0
217	colormapVisible 1
218	colormapDiscrete 0
219	edges 0
220	field "Default"
221	heightmapScale 50
222	isHeightmap 0
223	isolineColor black
224	isolinesVisible 1
225	legendVisible 1
226	lighting 1
227	saveLighting 1
228	numIsolines 10
229	opacity 100
230	outline 0
231	wireframe 0
232	saveOpacity 100
233	saveOutline 0
234	}
235	array set _changed {
236	opacity 0
237	colormap 0
238	numIsolines 0
239	}
240	itk_component add view {
241	canvas $itk_component(plotarea).view \
242	-highlightthickness 0 -borderwidth 0
243	} {
244	usual
245	ignore -highlightthickness -borderwidth -background
246	}
247
248	itk_component add fieldmenu {
249	menu $itk_component(plotarea).menu \
250	-relief flat \
251	-tearoff no
252	} {
253	usual
254	ignore -background -foreground -relief -tearoff
255	}
256	set c $itk_component(view)
257	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
258	bind $c <4> [itcl::code $this Zoom in 0.25]
259	bind $c <5> [itcl::code $this Zoom out 0.25]
260	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
261	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
262	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
263	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
264	bind $c <Enter> "focus %W"
265	bind $c <Control-F1> [itcl::code $this ToggleConsole]
266
267	# Fix the scrollregion in case we go off screen
268	$c configure -scrollregion [$c bbox all]
269
270	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
271	set _map(cwidth) -1
272	set _map(cheight) -1
273	set _map(zoom) 1.0
274	set _map(original) ""
275
276	set f [$itk_component(main) component controls]
277	itk_component add reset {
278	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
279	-highlightthickness 0 \
280	-image [Rappture::icon reset-view] \
281	-command [itcl::code $this Zoom reset]
282	} {
283	usual
284	ignore -highlightthickness
285	}
286	pack $itk_component(reset) -side top -padx 2 -pady 2
287	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
288
289	itk_component add zoomin {
290	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
291	-highlightthickness 0 \
292	-image [Rappture::icon zoom-in] \
293	-command [itcl::code $this Zoom in]
294	} {
295	usual
296	ignore -highlightthickness
297	}
298	pack $itk_component(zoomin) -side top -padx 2 -pady 2
299	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
300
301	itk_component add zoomout {
302	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
303	-highlightthickness 0 \
304	-image [Rappture::icon zoom-out] \
305	-command [itcl::code $this Zoom out]
306	} {
307	usual
308	ignore -highlightthickness
309	}
310	pack $itk_component(zoomout) -side top -padx 2 -pady 2
311	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
312
313	itk_component add mode {
314	Rappture::PushButton $f.mode \
315	-onimage [Rappture::icon surface] \
316	-offimage [Rappture::icon surface] \
317	-variable [itcl::scope _settings(isHeightmap)] \
318	-command [itcl::code $this AdjustSetting isHeightmap] \
319	}
320	Rappture::Tooltip::for $itk_component(mode) \
321	"Toggle the surface/contour on/off"
322	pack $itk_component(mode) -padx 2 -pady 2
323
324	if { [catch {
325	BuildContourTab
326	BuildAxisTab
327	BuildCameraTab
328	} errs] != 0 } {
329	global errorInfo
330	puts stderr "errs=$errs errorInfo=$errorInfo"
331	}
332	set _image(legend) [image create photo]
333
334	# Hack around the Tk panewindow. The problem is that the requested
335	# size of the 3d view isn't set until an image is retrieved from
336	# the server. So the panewindow uses the tiny size.
337	set w 10000
338	pack forget $itk_component(view)
339	blt::table $itk_component(plotarea) \
340	0,0 $itk_component(view) -fill both -reqwidth $w
341	blt::table configure $itk_component(plotarea) c1 -resize none
342
343	# Bindings for panning via mouse
344	bind $itk_component(view) <ButtonPress-2> \
345	[itcl::code $this Pan click %x %y]
346	bind $itk_component(view) <B2-Motion> \
347	[itcl::code $this Pan drag %x %y]
348	bind $itk_component(view) <ButtonRelease-2> \
349	[itcl::code $this Pan release %x %y]
350
351	#bind $itk_component(view) <ButtonRelease-3> \
352	# [itcl::code $this Pick %x %y]
353
354	# Bindings for panning via keyboard
355	bind $itk_component(view) <KeyPress-Left> \
356	[itcl::code $this Pan set -10 0]
357	bind $itk_component(view) <KeyPress-Right> \
358	[itcl::code $this Pan set 10 0]
359	bind $itk_component(view) <KeyPress-Up> \
360	[itcl::code $this Pan set 0 -10]
361	bind $itk_component(view) <KeyPress-Down> \
362	[itcl::code $this Pan set 0 10]
363	bind $itk_component(view) <Shift-KeyPress-Left> \
364	[itcl::code $this Pan set -2 0]
365	bind $itk_component(view) <Shift-KeyPress-Right> \
366	[itcl::code $this Pan set 2 0]
367	bind $itk_component(view) <Shift-KeyPress-Up> \
368	[itcl::code $this Pan set 0 -2]
369	bind $itk_component(view) <Shift-KeyPress-Down> \
370	[itcl::code $this Pan set 0 2]
371
372	# Bindings for zoom via keyboard
373	bind $itk_component(view) <KeyPress-Prior> \
374	[itcl::code $this Zoom out]
375	bind $itk_component(view) <KeyPress-Next> \
376	[itcl::code $this Zoom in]
377
378	bind $itk_component(view) <Enter> "focus $itk_component(view)"
379
380	if {[string equal "x11" [tk windowingsystem]]} {
381	# Bindings for zoom via mouse
382	bind $itk_component(view) <4> [itcl::code $this Zoom out]
383	bind $itk_component(view) <5> [itcl::code $this Zoom in]
384	}
385
386	set _image(download) [image create photo]
387
388	eval itk_initialize $args
389	Connect
390	set _beforeConnect 0
391	}
392
393	# ----------------------------------------------------------------------
394	# DESTRUCTOR
395	# ----------------------------------------------------------------------
396	itcl::body Rappture::VtkHeightmapViewer::destructor {} {
397	Disconnect
398	image delete $_image(plot)
399	image delete $_image(download)
400	catch { blt::arcball destroy $_arcball }
401	}
402
403	itcl::body Rappture::VtkHeightmapViewer::DoResize {} {
404	if { $_width < 2 } {
405	set _width 500
406	}
407	if { $_height < 2 } {
408	set _height 500
409	}
410	set _start [clock clicks -milliseconds]
411	SendCmd "screen size [expr $_width - 20] $_height"
412
413	set font "Arial 8"
414	set lh [font metrics $font -linespace]
415	set h [expr {$_height - 2 * ($lh + 2)}]
416	if { $h != $_legendHeight } {
417	EventuallyRequestLegend
418	} else {
419	DrawLegend
420	}
421	set _resizePending 0
422	}
423
424	itcl::body Rappture::VtkHeightmapViewer::DoRotate {} {
425	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
426	SendCmd "camera orient $q"
427	set _rotatePending 0
428	}
429
430	itcl::body Rappture::VtkHeightmapViewer::EventuallyRequestLegend {} {
431	if { !$_legendPending } {
432	set _legendPending 1
433	$_dispatcher event -idle !legend
434	}
435	}
436
437	itcl::body Rappture::VtkHeightmapViewer::EventuallyResize { w h } {
438	set _width $w
439	set _height $h
440	$_arcball resize $w $h
441	if { !$_resizePending } {
442	set _resizePending 1
443	$_dispatcher event -after 250 !resize
444	}
445	}
446
447	set rotate_delay 100
448
449	itcl::body Rappture::VtkHeightmapViewer::EventuallyRotate { q } {
450	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
451	if { !$_rotatePending } {
452	set _rotatePending 1
453	global rotate_delay
454	$_dispatcher event -after $rotate_delay !rotate
455	}
456	}
457
458	# ----------------------------------------------------------------------
459	# USAGE: add <dataobj> ?<settings>?
460	#
461	# Clients use this to add a data object to the plot. The optional
462	# <settings> are used to configure the plot. Allowed settings are
463	# -color, -brightness, -width, -linestyle, and -raise.
464	# ----------------------------------------------------------------------
465	itcl::body Rappture::VtkHeightmapViewer::add {dataobj {settings ""}} {
466	array set params {
467	-color auto
468	-width 1
469	-linestyle solid
470	-brightness 0
471	-raise 0
472	-description ""
473	-param ""
474	-type ""
475	}
476	array set params $settings
477	set params(-description) ""
478	set params(-param) ""
479	foreach {opt val} $settings {
480	if {![info exists params($opt)]} {
481	error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]"
482	}
483	set params($opt) $val
484	}
485	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
486	# can't handle -autocolors yet
487	set params(-color) white
488	}
489	set pos [lsearch -exact $dataobj $_dlist]
490	if {$pos < 0} {
491	lappend _dlist $dataobj
492	}
493	set _obj2ovride($dataobj-color) $params(-color)
494	set _obj2ovride($dataobj-width) $params(-width)
495	set _obj2ovride($dataobj-raise) $params(-raise)
496	$_dispatcher event -idle !rebuild
497	}
498
499
500	# ----------------------------------------------------------------------
501	# USAGE: delete ?<dataobj1> <dataobj2> ...?
502	#
503	# Clients use this to delete a dataobj from the plot. If no dataobjs
504	# are specified, then all dataobjs are deleted. No data objects are
505	# deleted. They are only removed from the display list.
506	#
507	# ----------------------------------------------------------------------
508	itcl::body Rappture::VtkHeightmapViewer::delete {args} {
509	if { [llength $args] == 0} {
510	set args $_dlist
511	}
512	# Delete all specified dataobjs
513	set changed 0
514	foreach dataobj $args {
515	set pos [lsearch -exact $_dlist $dataobj]
516	if { $pos < 0 } {
517	continue; # Don't know anything about it.
518	}
519	# Remove it from the dataobj list.
520	set _dlist [lreplace $_dlist $pos $pos]
521	array unset _obj2ovride $dataobj-*
522	array unset _settings $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::VtkHeightmapViewer::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 visible.
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	# scale --
606	#
607	# This gets called either incrementally as new simulations are
608	# added or all at once as a sequence of heightmaps.
609	# This accounts for all objects--even those not showing on the
610	# screen. Because of this, the limits are appropriate for all
611	# objects as the user scans through data in the ResultSet viewer.
612	#
613	itcl::body Rappture::VtkHeightmapViewer::scale {args} {
614	foreach dataobj $args {
615	foreach axis { x y } {
616	set lim [$dataobj limits $axis]
617	if { ![info exists _limits($axis)] } {
618	set _limits($axis) $lim
619	continue
620	}
621	foreach {min max} $lim break
622	foreach {amin amax} $_limits($axis) break
623	if { $amin > $min } {
624	set amin $min
625	}
626	if { $amax < $max } {
627	set amax $max
628	}
629	set _limits($axis) [list $amin $amax]
630	}
631	foreach { fname lim } [$dataobj fieldlimits] {
632	if { ![info exists _limits($fname)] } {
633	set _limits($fname) $lim
634	continue
635	}
636	foreach {min max} $lim break
637	foreach {fmin fmax} $_limits($fname) break
638	if { $fmin > $min } {
639	set fmin $min
640	}
641	if { $fmax < $max } {
642	set fmax $max
643	}
644	set _limits($fname) [list $fmin $fmax]
645	}
646	}
647	}
648
649	# ----------------------------------------------------------------------
650	# USAGE: download coming
651	# USAGE: download controls <downloadCommand>
652	# USAGE: download now
653	#
654	# Clients use this method to create a downloadable representation
655	# of the plot. Returns a list of the form {ext string}, where
656	# "ext" is the file extension (indicating the type of data) and
657	# "string" is the data itself.
658	# ----------------------------------------------------------------------
659	itcl::body Rappture::VtkHeightmapViewer::download {option args} {
660	switch $option {
661	coming {
662	if {[catch {
663	blt::winop snap $itk_component(plotarea) $_image(download)
664	}]} {
665	$_image(download) configure -width 1 -height 1
666	$_image(download) put #000000
667	}
668	}
669	controls {
670	set popup .vtkviewerdownload
671	if { ![winfo exists .vtkviewerdownload] } {
672	set inner [BuildDownloadPopup $popup [lindex $args 0]]
673	} else {
674	set inner [$popup component inner]
675	}
676	set _downloadPopup(image_controls) $inner.image_frame
677	set num [llength [get]]
678	set num [expr {($num == 1) ? "1 result" : "$num results"}]
679	set word [Rappture::filexfer::label downloadWord]
680	$inner.summary configure -text "$word $num in the following format:"
681	update idletasks ;# Fix initial sizes
682	return $popup
683	}
684	now {
685	set popup .vtkviewerdownload
686	if {[winfo exists .vtkviewerdownload]} {
687	$popup deactivate
688	}
689	switch -- $_downloadPopup(format) {
690	"image" {
691	return [$this GetImage [lindex $args 0]]
692	}
693	"vtk" {
694	return [$this GetVtkData [lindex $args 0]]
695	}
696	}
697	return ""
698	}
699	default {
700	error "bad option \"$option\": should be coming, controls, now"
701	}
702	}
703	}
704
705	# ----------------------------------------------------------------------
706	# USAGE: Connect ?<host:port>,<host:port>...?
707	#
708	# Clients use this method to establish a connection to a new
709	# server, or to reestablish a connection to the previous server.
710	# Any existing connection is automatically closed.
711	# ----------------------------------------------------------------------
712	itcl::body Rappture::VtkHeightmapViewer::Connect {} {
713	global readyForNextFrame
714	set readyForNextFrame 1
715	set _reset 1
716	set _hosts [GetServerList "vtkvis"]
717	if { "" == $_hosts } {
718	return 0
719	}
720	set result [VisViewer::Connect $_hosts]
721	if { $result } {
722	set w [winfo width $itk_component(view)]
723	set h [winfo height $itk_component(view)]
724	EventuallyResize $w $h
725	}
726	return $result
727	}
728
729	#
730	# isconnected --
731	#
732	# Indicates if we are currently connected to the visualization server.
733	#
734	itcl::body Rappture::VtkHeightmapViewer::isconnected {} {
735	return [VisViewer::IsConnected]
736	}
737
738	#
739	# disconnect --
740	#
741	itcl::body Rappture::VtkHeightmapViewer::disconnect {} {
742	Disconnect
743	set _reset 1
744	}
745
746	#
747	# Disconnect --
748	#
749	# Clients use this method to disconnect from the current rendering
750	# server.
751	#
752	itcl::body Rappture::VtkHeightmapViewer::Disconnect {} {
753	VisViewer::Disconnect
754
755	$_dispatcher cancel !rebuild
756	$_dispatcher cancel !resize
757	$_dispatcher cancel !rotate
758	$_dispatcher cancel !legend
759	# disconnected -- no more data sitting on server
760	array unset _datasets
761	array unset _data
762	array unset _colormaps
763	array unset _obj2datasets
764	global readyForNextFrame
765	set readyForNextFrame 1
766	}
767
768	# ----------------------------------------------------------------------
769	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
770	#
771	# Invoked automatically whenever the "image" command comes in from
772	# the rendering server. Indicates that binary image data with the
773	# specified <size> will follow.
774	# ----------------------------------------------------------------------
775	itcl::body Rappture::VtkHeightmapViewer::ReceiveImage { args } {
776	global readyForNextFrame
777	set readyForNextFrame 1
778	array set info {
779	-token "???"
780	-bytes 0
781	-type image
782	}
783	array set info $args
784	set bytes [ReceiveBytes $info(-bytes)]
785	if { $info(-type) == "image" } {
786	if 0 {
787	set f [open "last.ppm" "w"]
788	puts $f $bytes
789	close $f
790	}
791	$_image(plot) configure -data $bytes
792	set time [clock seconds]
793	set date [clock format $time]
794	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
795	if { $_start > 0 } {
796	set finish [clock clicks -milliseconds]
797	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
798	set _start 0
799	}
800	} elseif { $info(type) == "print" } {
801	set tag $this-print-$info(-token)
802	set _hardcopy($tag) $bytes
803	}
804	}
805
806	#
807	# ReceiveDataset --
808	#
809	itcl::body Rappture::VtkHeightmapViewer::ReceiveDataset { args } {
810	if { ![isconnected] } {
811	return
812	}
813	set option [lindex $args 0]
814	switch -- $option {
815	"scalar" {
816	set option [lindex $args 1]
817	switch -- $option {
818	"world" {
819	foreach { x y z value tag } [lrange $args 2 end] break
820	}
821	"pixel" {
822	foreach { x y value tag } [lrange $args 2 end] break
823	}
824	}
825	}
826	"vector" {
827	set option [lindex $args 1]
828	switch -- $option {
829	"world" {
830	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
831	}
832	"pixel" {
833	foreach { x y vx vy vz tag } [lrange $args 2 end] break
834	}
835	}
836	}
837	"names" {
838	foreach { name } [lindex $args 1] {
839	#puts stderr "Dataset: $name"
840	}
841	}
842	default {
843	error "unknown dataset option \"$option\" from server"
844	}
845	}
846	}
847
848	# ----------------------------------------------------------------------
849	# USAGE: Rebuild
850	#
851	# Called automatically whenever something changes that affects the
852	# data in the widget. Clears any existing data and rebuilds the
853	# widget to display new data.
854	# ----------------------------------------------------------------------
855	itcl::body Rappture::VtkHeightmapViewer::Rebuild {} {
856	set w [winfo width $itk_component(view)]
857	set h [winfo height $itk_component(view)]
858	if { $w < 2 \|\| $h < 2 } {
859	$_dispatcher event -idle !rebuild
860	return
861	}
862
863	# Turn on buffering of commands to the server. We don't want to
864	# be preempted by a server disconnect/reconnect (which automatically
865	# generates a new call to Rebuild).
866	StartBufferingCommands
867
868	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
869	set _width $w
870	set _height $h
871	$_arcball resize $w $h
872	DoResize
873	if { $_settings(stretchToFit) } {
874	AdjustSetting stretchToFit
875	}
876	}
877	if { $_reset } {
878	if { $_reportClientInfo } {
879	# Tell the server the name of the tool, the version, and dataset
880	# that we are rendering. Have to do it here because we don't know
881	# what data objects are using the renderer until be get here.
882	global env
883
884	set info {}
885	set user "???"
886	if { [info exists env(USER)] } {
887	set user $env(USER)
888	}
889	set session "???"
890	if { [info exists env(SESSION)] } {
891	set session $env(SESSION)
892	}
893	lappend info "hub" [exec hostname]
894	lappend info "client" "vtkheightmapviewer"
895	lappend info "user" $user
896	lappend info "session" $session
897	SendCmd "clientinfo [list $info]"
898	}
899	InitSettings isHeightmap background
900	#
901	# Reset the camera and other view parameters
902	#
903	SendCmd "axis color all [Color2RGB $itk_option(-plotforeground)]"
904
905	# Let's see how this goes. I think it's preferable to overloading the
906	# axis title with the exponent.
907	SendCmd "axis exp 0 0 0 1"
908
909	SendCmd "axis lrot z 90"
910	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
911	$_arcball quaternion $q
912	if {$_settings(isHeightmap) } {
913	if { $_view(ortho)} {
914	SendCmd "camera mode ortho"
915	} else {
916	SendCmd "camera mode persp"
917	}
918	SendCmd "camera reset"
919	DoRotate
920	}
921	PanCamera
922	StopBufferingCommands
923	SendCmd "imgflush"
924	StartBufferingCommands
925	}
926
927	set _first ""
928	# Start off with no datasets are visible.
929	SendCmd "dataset visible 0"
930	set scale [GetHeightmapScale]
931	foreach dataobj [get -objects] {
932	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
933	set _first $dataobj
934	}
935	set _obj2datasets($dataobj) ""
936	foreach comp [$dataobj components] {
937	set tag $dataobj-$comp
938	if { ![info exists _datasets($tag)] } {
939	set bytes [$dataobj vtkdata $comp]
940	if 0 {
941	set f [open /tmp/vtkheightmap.vtk "w"]
942	puts $f $bytes
943	close $f
944	}
945	set length [string length $bytes]
946	if { $_reportClientInfo } {
947	set info {}
948	lappend info "tool_id" [$dataobj hints toolId]
949	lappend info "tool_name" [$dataobj hints toolName]
950	lappend info "tool_version" [$dataobj hints toolRevision]
951	lappend info "tool_title" [$dataobj hints toolTitle]
952	lappend info "dataset_label" [$dataobj hints label]
953	lappend info "dataset_size" $length
954	lappend info "dataset_tag" $tag
955	SendCmd [list "clientinfo" $info]
956	}
957	SendCmd "dataset add $tag data follows $length"
958	append _outbuf $bytes
959	set _datasets($tag) 1
960	SetObjectStyle $dataobj $comp
961	}
962	lappend _obj2datasets($dataobj) $tag
963	if { [info exists _obj2ovride($dataobj-raise)] } {
964	# Setting dataset visible enables outline (if enabled)
965	# and heightmap
966	SendCmd "dataset visible 1 $tag"
967	}
968	if { ![info exists _comp2scale($tag)] \|\|
969	$_comp2scale($tag) != $scale } {
970	SendCmd "heightmap heightscale $scale $tag"
971	set _comp2scale($tag) $scale
972	}
973	}
974	}
975	if { $_first != "" } {
976	$itk_component(field) choices delete 0 end
977	$itk_component(fieldmenu) delete 0 end
978	array unset _fields
979	set _curFldName ""
980	foreach cname [$_first components] {
981	foreach fname [$_first fieldnames $cname] {
982	if { [info exists _fields($fname)] } {
983	continue
984	}
985	foreach { label units components } \
986	[$_first fieldinfo $fname] break
987	$itk_component(field) choices insert end "$fname" "$label"
988	$itk_component(fieldmenu) add radiobutton -label "$label" \
989	-value $label -variable [itcl::scope _curFldLabel] \
990	-selectcolor red \
991	-activebackground $itk_option(-plotbackground) \
992	-activeforeground $itk_option(-plotforeground) \
993	-font "Arial 8" \
994	-command [itcl::code $this Combo invoke]
995	set _fields($fname) [list $label $units $components]
996	if { $_curFldName == "" } {
997	set _curFldName $fname
998	set _curFldLabel $label
999	}
1000	}
1001	}
1002	$itk_component(field) value $_curFldLabel
1003	}
1004	InitSettings stretchToFit
1005
1006	if { $_reset } {
1007	SendCmd "axis tickpos outside"
1008	foreach axis { x y z } {
1009	SendCmd "axis lformat $axis %g"
1010	}
1011
1012	foreach axis { x y z } {
1013	set label [$_first hints ${axis}label]
1014	if { $label == "" } {
1015	if {$axis == "z"} {
1016	if { [string match "component*" $_curFldName] } {
1017	set label [string toupper $axis]
1018	} else {
1019	set label $_curFldLabel
1020	}
1021	} else {
1022	set label [string toupper $axis]
1023	}
1024	}
1025	# May be a space in the axis label.
1026	SendCmd [list axis name $axis $label]
1027
1028	if {$axis == "z" && [$_first hints ${axis}units] == ""} {
1029	set units [lindex $_fields($_curFldName) 1]
1030	} else {
1031	set units [$_first hints ${axis}units]
1032	}
1033	if { $units != "" } {
1034	# May be a space in the axis units.
1035	SendCmd [list axis units $axis $units]
1036	}
1037	}
1038	#
1039	# Reset the camera and other view parameters
1040	#
1041	SendCmd "axis color all [Color2RGB $itk_option(-plotforeground)]"
1042	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)]"
1043	ResetAxes
1044	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1045	$_arcball quaternion $q
1046	if {$_settings(isHeightmap) } {
1047	if { $_view(ortho)} {
1048	SendCmd "camera mode ortho"
1049	} else {
1050	SendCmd "camera mode persp"
1051	}
1052	SendCmd "camera reset"
1053	DoRotate
1054	}
1055	PanCamera
1056	InitSettings axisXGrid axisYGrid axisZGrid \
1057	axisVisible axisLabels
1058	InitSettings heightmapScale field isHeightmap
1059	if { [array size _fields] < 2 } {
1060	blt::table forget $itk_component(field) $itk_component(field_l)
1061	}
1062	RequestLegend
1063	set _reset 0
1064	}
1065	global readyForNextFrame
1066	set readyForNextFrame 0; # Don't advance to the next frame
1067
1068	# Actually write the commands to the server socket. If it fails, we don't
1069	# care. We're finished here.
1070	blt::busy hold $itk_component(hull)
1071	StopBufferingCommands
1072	blt::busy release $itk_component(hull)
1073	}
1074
1075	# ----------------------------------------------------------------------
1076	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1077	#
1078	# Returns a list of server IDs for the current datasets being displayed. This
1079	# is normally a single ID, but it might be a list of IDs if the current data
1080	# object has multiple components.
1081	# ----------------------------------------------------------------------
1082	itcl::body Rappture::VtkHeightmapViewer::CurrentDatasets {args} {
1083	set flag [lindex $args 0]
1084	switch -- $flag {
1085	"-all" {
1086	if { [llength $args] > 1 } {
1087	error "CurrentDatasets: can't specify dataobj after \"-all\""
1088	}
1089	set dlist [get -objects]
1090	}
1091	"-visible" {
1092	if { [llength $args] > 1 } {
1093	set dlist {}
1094	set args [lrange $args 1 end]
1095	foreach dataobj $args {
1096	if { [info exists _obj2ovride($dataobj-raise)] } {
1097	lappend dlist $dataobj
1098	}
1099	}
1100	} else {
1101	set dlist [get -visible]
1102	}
1103	}
1104	default {
1105	set dlist $args
1106	}
1107	}
1108	set rlist ""
1109	foreach dataobj $dlist {
1110	foreach comp [$dataobj components] {
1111	set tag $dataobj-$comp
1112	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1113	lappend rlist $tag
1114	}
1115	}
1116	}
1117	return $rlist
1118	}
1119
1120	# ----------------------------------------------------------------------
1121	# USAGE: Zoom in
1122	# USAGE: Zoom out
1123	# USAGE: Zoom reset
1124	#
1125	# Called automatically when the user clicks on one of the zoom
1126	# controls for this widget. Changes the zoom for the current view.
1127	# ----------------------------------------------------------------------
1128	itcl::body Rappture::VtkHeightmapViewer::Zoom {option} {
1129	switch -- $option {
1130	"in" {
1131	set _view(zoom) [expr {$_view(zoom)*1.25}]
1132	SendCmd "camera zoom $_view(zoom)"
1133	}
1134	"out" {
1135	set _view(zoom) [expr {$_view(zoom)*0.8}]
1136	SendCmd "camera zoom $_view(zoom)"
1137	}
1138	"reset" {
1139	array set _view {
1140	qw 0.36
1141	qx 0.25
1142	qy 0.50
1143	qz 0.70
1144	zoom 1.0
1145	xpan 0
1146	ypan 0
1147	}
1148	if { $_first != "" } {
1149	set location [$_first hints camera]
1150	if { $location != "" } {
1151	array set _view $location
1152	}
1153	}
1154	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1155	$_arcball quaternion $q
1156	SendCmd "camera reset"
1157	if {$_settings(isHeightmap) } {
1158	DoRotate
1159	}
1160	}
1161	}
1162	}
1163
1164	itcl::body Rappture::VtkHeightmapViewer::PanCamera {} {
1165	set x $_view(xpan)
1166	set y $_view(ypan)
1167	SendCmd "camera pan $x $y"
1168	}
1169
1170
1171	# ----------------------------------------------------------------------
1172	# USAGE: Rotate click <x> <y>
1173	# USAGE: Rotate drag <x> <y>
1174	# USAGE: Rotate release <x> <y>
1175	#
1176	# Called automatically when the user clicks/drags/releases in the
1177	# plot area. Moves the plot according to the user's actions.
1178	# ----------------------------------------------------------------------
1179	itcl::body Rappture::VtkHeightmapViewer::Rotate {option x y} {
1180	switch -- $option {
1181	"click" {
1182	$itk_component(view) configure -cursor fleur
1183	set _click(x) $x
1184	set _click(y) $y
1185	}
1186	"drag" {
1187	if {[array size _click] == 0} {
1188	Rotate click $x $y
1189	} else {
1190	set w [winfo width $itk_component(view)]
1191	set h [winfo height $itk_component(view)]
1192	if {$w <= 0 \|\| $h <= 0} {
1193	return
1194	}
1195
1196	if {[catch {
1197	# this fails sometimes for no apparent reason
1198	set dx [expr {double($x-$_click(x))/$w}]
1199	set dy [expr {double($y-$_click(y))/$h}]
1200	}]} {
1201	return
1202	}
1203	if { $dx == 0 && $dy == 0 } {
1204	return
1205	}
1206	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1207	EventuallyRotate $q
1208	set _click(x) $x
1209	set _click(y) $y
1210	}
1211	}
1212	"release" {
1213	Rotate drag $x $y
1214	$itk_component(view) configure -cursor ""
1215	catch {unset _click}
1216	}
1217	default {
1218	error "bad option \"$option\": should be click, drag, release"
1219	}
1220	}
1221	}
1222
1223	itcl::body Rappture::VtkHeightmapViewer::Pick {x y} {
1224	foreach tag [CurrentDatasets -visible] {
1225	SendCmd "dataset getscalar pixel $x $y $tag"
1226	}
1227	}
1228
1229	# ----------------------------------------------------------------------
1230	# USAGE: $this Pan click x y
1231	# $this Pan drag x y
1232	# $this Pan release x y
1233	#
1234	# Called automatically when the user clicks on one of the zoom
1235	# controls for this widget. Changes the zoom for the current view.
1236	# ----------------------------------------------------------------------
1237	itcl::body Rappture::VtkHeightmapViewer::Pan {option x y} {
1238	switch -- $option {
1239	"set" {
1240	set w [winfo width $itk_component(view)]
1241	set h [winfo height $itk_component(view)]
1242	set x [expr $x / double($w)]
1243	set y [expr $y / double($h)]
1244	set _view(xpan) [expr $_view(xpan) + $x]
1245	set _view(ypan) [expr $_view(ypan) + $y]
1246	PanCamera
1247	return
1248	}
1249	"click" {
1250	set _click(x) $x
1251	set _click(y) $y
1252	$itk_component(view) configure -cursor hand1
1253	}
1254	"drag" {
1255	if { ![info exists _click(x)] } {
1256	set _click(x) $x
1257	}
1258	if { ![info exists _click(y)] } {
1259	set _click(y) $y
1260	}
1261	set w [winfo width $itk_component(view)]
1262	set h [winfo height $itk_component(view)]
1263	set dx [expr ($_click(x) - $x)/double($w)]
1264	set dy [expr ($_click(y) - $y)/double($h)]
1265	set _click(x) $x
1266	set _click(y) $y
1267	set _view(xpan) [expr $_view(xpan) - $dx]
1268	set _view(ypan) [expr $_view(ypan) - $dy]
1269	PanCamera
1270	}
1271	"release" {
1272	Pan drag $x $y
1273	$itk_component(view) configure -cursor ""
1274	}
1275	default {
1276	error "unknown option \"$option\": should set, click, drag, or release"
1277	}
1278	}
1279	}
1280
1281	# ----------------------------------------------------------------------
1282	# USAGE: InitSettings <what> ?<value>?
1283	#
1284	# Used internally to update rendering settings whenever parameters
1285	# change in the popup settings panel. Sends the new settings off
1286	# to the back end.
1287	# ----------------------------------------------------------------------
1288	itcl::body Rappture::VtkHeightmapViewer::InitSettings { args } {
1289	foreach spec $args {
1290	if { [info exists _settings($_first-$spec)] } {
1291	# Reset global setting with dataobj specific setting
1292	set _settings($spec) $_settings($_first-$spec)
1293	}
1294	AdjustSetting $spec
1295	}
1296	}
1297
1298	#
1299	# AdjustSetting --
1300	#
1301	# Changes/updates a specific setting in the widget. There are
1302	# usually user-setable option. Commands are sent to the render
1303	# server.
1304	#
1305	itcl::body Rappture::VtkHeightmapViewer::AdjustSetting {what {value ""}} {
1306	if { $_beforeConnect } {
1307	return
1308	}
1309	switch -- $what {
1310	"axisFlymode" {
1311	set mode [$itk_component(axisflymode) value]
1312	set mode [$itk_component(axisflymode) translate $mode]
1313	set _settings($what) $mode
1314	SendCmd "axis flymode $mode"
1315	}
1316	"axisLabels" {
1317	set bool $_settings(axisLabels)
1318	SendCmd "axis labels all $bool"
1319	}
1320	"axisMinorTicks" {
1321	set bool $_settings(axisMinorTicks)
1322	foreach axis { x y z } {
1323	SendCmd "axis minticks ${axis} $bool"
1324	}
1325	}
1326	"axisVisible" {
1327	set bool $_settings(axisVisible)
1328	SendCmd "axis visible all $bool"
1329	}
1330	"axisXGrid" - "axisYGrid" - "axisZGrid" {
1331	set axis [string tolower [string range $what 4 4]]
1332	set bool $_settings($what)
1333	SendCmd "axis grid $axis $bool"
1334	}
1335	"background" {
1336	set bgcolor [$itk_component(background) value]
1337	array set fgcolors {
1338	"black" "white"
1339	"white" "black"
1340	"grey" "black"
1341	}
1342	configure -plotbackground $bgcolor \
1343	-plotforeground $fgcolors($bgcolor)
1344	$itk_component(view) delete "legend"
1345	DrawLegend
1346	}
1347	"colormap" {
1348	set _changed(colormap) 1
1349	StartBufferingCommands
1350	set color [$itk_component(colormap) value]
1351	set _settings(colormap) $color
1352	if { $color == "none" } {
1353	if { $_settings(colormapVisible) } {
1354	SendCmd "heightmap surface 0"
1355	set _settings(colormapVisible) 0
1356	}
1357	} else {
1358	if { !$_settings(colormapVisible) } {
1359	SendCmd "heightmap surface 1"
1360	set _settings(colormapVisible) 1
1361	}
1362	SetCurrentColormap $color
1363	if {$_settings(colormapDiscrete)} {
1364	set numColors [expr $_settings(numIsolines) - 1]
1365	SendCmd "colormap res $numColors $color"
1366	}
1367	}
1368	StopBufferingCommands
1369	EventuallyRequestLegend
1370	}
1371	"colormapVisible" {
1372	set bool $_settings($what)
1373	SendCmd "heightmap surface $bool"
1374	}
1375	"colormapDiscrete" {
1376	set bool $_settings($what)
1377	set numColors [expr $_settings(numIsolines) - 1]
1378	StartBufferingCommands
1379	if {$bool} {
1380	SendCmd "colormap res $numColors"
1381	# Discrete colormap requires preinterp on
1382	SendCmd "heightmap preinterp on"
1383	} else {
1384	SendCmd "colormap res default"
1385	# FIXME: add setting for preinterp (default on)
1386	SendCmd "heightmap preinterp on"
1387	}
1388	StopBufferingCommands
1389	EventuallyRequestLegend
1390	}
1391	"edges" {
1392	set bool $_settings(edges)
1393	SendCmd "heightmap edges $bool"
1394	}
1395	"field" {
1396	set label [$itk_component(field) value]
1397	set fname [$itk_component(field) translate $label]
1398	set _settings(field) $fname
1399	if { [info exists _fields($fname)] } {
1400	foreach { label units components } $_fields($fname) break
1401	if { $components > 1 } {
1402	set _colorMode vmag
1403	} else {
1404	set _colorMode scalar
1405	}
1406	set _curFldName $fname
1407	set _curFldLabel $label
1408	} else {
1409	puts stderr "unknown field \"$fname\""
1410	return
1411	}
1412	set label [$_first hints zlabel]
1413	if { $label == "" } {
1414	if { [string match "component*" $_curFldName] } {
1415	set label Z
1416	} else {
1417	set label $_curFldLabel
1418	}
1419	}
1420	# May be a space in the axis label.
1421	SendCmd [list axis name z $label]
1422
1423	if { [$_first hints zunits] == "" } {
1424	set units [lindex $_fields($_curFldName) 1]
1425	} else {
1426	set units [$_first hints zunits]
1427	}
1428	if { $units != "" } {
1429	# May be a space in the axis units.
1430	SendCmd [list axis units z $units]
1431	}
1432	# Get the new limits because the field changed.
1433	ResetAxes
1434	SendCmd "dataset scalar $_curFldName"
1435	SendCmd "heightmap colormode scalar $_curFldName"
1436	SendCmd "camera reset"
1437	DrawLegend
1438	}
1439	"heightmapScale" {
1440	if { $_settings(isHeightmap) } {
1441	set scale [GetHeightmapScale]
1442	# Have to set the datasets individually because we are
1443	# tracking them in _comp2scale.
1444	foreach dataset [CurrentDatasets -all] {
1445	SendCmd "heightmap heightscale $scale $dataset"
1446	set _comp2scale($dataset) $scale
1447	}
1448	ResetAxes
1449	}
1450	}
1451	"isHeightmap" {
1452	set bool $_settings(isHeightmap)
1453	set c $itk_component(view)
1454	StartBufferingCommands
1455	# Fix heightmap scale: 0 for contours, 1 for heightmaps.
1456	if { $bool } {
1457	set _settings(heightmapScale) 50
1458	set _settings(opacity) $_settings(saveOpacity)
1459	set _settings(lighting) $_settings(saveLighting)
1460	set _settings(outline) 0
1461	} else {
1462	set _settings(heightmapScale) 0
1463	set _settings(lighting) 0
1464	set _settings(opacity) 100
1465	set _settings(outline) $_settings(saveOutline)
1466	}
1467	AdjustSetting lighting
1468	AdjustSetting opacity
1469	AdjustSetting outline
1470	set scale [GetHeightmapScale]
1471	# Have to set the datasets individually because we are
1472	# tracking them in _comp2scale.
1473	foreach dataset [CurrentDatasets -all] {
1474	SendCmd "heightmap heightscale $scale $dataset"
1475	set _comp2scale($dataset) $scale
1476	}
1477	if { $bool } {
1478	$itk_component(lighting) configure -state normal
1479	$itk_component(opacity) configure -state normal
1480	$itk_component(scale) configure -state normal
1481	$itk_component(opacity_l) configure -state normal
1482	$itk_component(scale_l) configure -state normal
1483	$itk_component(outline) configure -state disabled
1484	if {$_view(ortho)} {
1485	SendCmd "camera mode ortho"
1486	} else {
1487	SendCmd "camera mode persp"
1488	}
1489	} else {
1490	$itk_component(lighting) configure -state disabled
1491	$itk_component(opacity) configure -state disabled
1492	$itk_component(scale) configure -state disabled
1493	$itk_component(opacity_l) configure -state disabled
1494	$itk_component(scale_l) configure -state disabled
1495	$itk_component(outline) configure -state normal
1496	SendCmd "camera mode image"
1497	}
1498	if {$_settings(stretchToFit)} {
1499	if {$scale == 0} {
1500	SendCmd "camera aspect window"
1501	} else {
1502	SendCmd "camera aspect square"
1503	}
1504	}
1505	ResetAxes
1506	SendCmd "camera reset"
1507	if { $bool } {
1508	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1509	$_arcball quaternion $q
1510	SendCmd "camera orient $q"
1511	} else {
1512	bind $c <ButtonPress-1> {}
1513	bind $c <B1-Motion> {}
1514	bind $c <ButtonRelease-1> {}
1515	}
1516	# Fix the mouse bindings for rotation/panning and the
1517	# camera mode. Ideally we'd create a bindtag for these.
1518	if { $bool } {
1519	# Bindings for rotation via mouse
1520	bind $c <ButtonPress-1> \
1521	[itcl::code $this Rotate click %x %y]
1522	bind $c <B1-Motion> \
1523	[itcl::code $this Rotate drag %x %y]
1524	bind $c <ButtonRelease-1> \
1525	[itcl::code $this Rotate release %x %y]
1526	}
1527	StopBufferingCommands
1528	}
1529	"isolineColor" {
1530	set color [$itk_component(isolinecolor) value]
1531	if { $color == "none" } {
1532	if { $_settings(isolinesVisible) } {
1533	SendCmd "heightmap isolines 0"
1534	set _settings(isolinesVisible) 0
1535	}
1536	} else {
1537	if { !$_settings(isolinesVisible) } {
1538	SendCmd "heightmap isolines 1"
1539	set _settings(isolinesVisible) 1
1540	}
1541	SendCmd "heightmap isolinecolor [Color2RGB $color]"
1542	}
1543	DrawLegend
1544	}
1545	"isolinesVisible" {
1546	set bool $_settings($what)
1547	SendCmd "heightmap isolines $bool"
1548	DrawLegend
1549	}
1550	"legendVisible" {
1551	if { !$_settings($what) } {
1552	$itk_component(view) delete legend
1553	}
1554	DrawLegend
1555	}
1556	"lighting" {
1557	if { $_settings(isHeightmap) } {
1558	set _settings(saveLighting) $_settings(lighting)
1559	set bool $_settings($what)
1560	SendCmd "heightmap lighting $bool"
1561	} else {
1562	SendCmd "heightmap lighting 0"
1563	}
1564	}
1565	"numIsolines" {
1566	set _changed(numIsolines) 1
1567	set _settings(numIsolines) [$itk_component(numisolines) value]
1568	set _currentNumIsolines $_settings(numIsolines)
1569	SendCmd "heightmap numcontours $_settings(numIsolines)"
1570	if {$_settings(colormapDiscrete)} {
1571	set numColors [expr $_settings(numIsolines) - 1]
1572	SendCmd "colormap res $numColors"
1573	EventuallyRequestLegend
1574	} else {
1575	DrawLegend
1576	}
1577	}
1578	"opacity" {
1579	set _changed(opacity) 1
1580	if { $_settings(isHeightmap) } {
1581	set _settings(saveOpacity) $_settings(opacity)
1582	set val $_settings(opacity)
1583	set sval [expr { 0.01 * double($val) }]
1584	SendCmd "heightmap opacity $sval"
1585	} else {
1586	SendCmd "heightmap opacity 1"
1587	}
1588	}
1589	"outline" {
1590	if { $_settings(isHeightmap) } {
1591	SendCmd "outline visible 0"
1592	} else {
1593	set _settings(saveOutline) $_settings(outline)
1594	set bool $_settings(outline)
1595	SendCmd "outline visible $bool"
1596	}
1597	}
1598	"stretchToFit" {
1599	set bool $_settings($what)
1600	if { $bool } {
1601	set heightScale [GetHeightmapScale]
1602	if {$heightScale == 0} {
1603	SendCmd "camera aspect window"
1604	} else {
1605	SendCmd "camera aspect square"
1606	}
1607	} else {
1608	SendCmd "camera aspect native"
1609	}
1610	}
1611	"wireframe" {
1612	set bool $_settings($what)
1613	SendCmd "heightmap wireframe $bool"
1614	}
1615	default {
1616	error "don't know how to fix $what"
1617	}
1618	}
1619	}
1620
1621	#
1622	# RequestLegend --
1623	#
1624	# Request a new legend from the server. The size of the legend
1625	# is determined from the height of the canvas.
1626	#
1627	# This should be called when
1628	# 1. A new current colormap is set.
1629	# 2. Window is resized.
1630	# 3. The limits of the data have changed. (Just need a redraw).
1631	# 4. Number of isolines have changed. (Just need a redraw).
1632	# 5. Legend becomes visible (Just need a redraw).
1633	#
1634	itcl::body Rappture::VtkHeightmapViewer::RequestLegend {} {
1635	set _legendPending 0
1636	set font "Arial 8"
1637	set w 12
1638	set lineht [font metrics $font -linespace]
1639	# color ramp height = (canvas height) - (min and max value lines) - 2
1640	set h [expr {$_height - 2 * ($lineht + 2)}]
1641	set _legendHeight $h
1642
1643	set fname $_curFldName
1644	if { [string match "component*" $fname] } {
1645	set title ""
1646	} else {
1647	if { [info exists _fields($fname)] } {
1648	foreach { title units } $_fields($fname) break
1649	if { $units != "" } {
1650	set title [format "%s (%s)" $title $units]
1651	}
1652	} else {
1653	set title $fname
1654	}
1655	}
1656	# If there's a title too, substract one more line
1657	if { $title != "" } {
1658	incr h -$lineht
1659	}
1660	if { $h < 1} {
1661	return
1662	}
1663	# Set the legend on the first heightmap dataset.
1664	if { $_currentColormap != "" } {
1665	set cmap $_currentColormap
1666	SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1667	#SendCmd "heightmap colormode scalar $_curFldName"
1668	#SendCmd "dataset scalar $_curFldName"
1669	}
1670	}
1671
1672	#
1673	# ResetAxes --
1674	#
1675	# Set axis z bounds and range
1676	#
1677	itcl::body Rappture::VtkHeightmapViewer::ResetAxes {} {
1678	if { ![info exists _limits($_curFldName)]} {
1679	SendCmd "dataset maprange all"
1680	SendCmd "axis autorange z on"
1681	SendCmd "axis autobounds z on"
1682	return
1683	}
1684	foreach { xmin xmax } $_limits(x) break
1685	foreach { ymin ymax } $_limits(y) break
1686	foreach { vmin vmax } $_limits($_curFldName) break
1687
1688	global tcl_precision
1689	set tcl_precision 17
1690	set xr [expr $xmax - $xmin]
1691	set yr [expr $ymax - $ymin]
1692	set vr [expr $vmax - $vmin]
1693	set r [expr ($yr > $xr) ? $yr : $xr]
1694	if { $vr < 1.0e-17 } {
1695	set dataScale 1.0
1696	} else {
1697	set dataScale [expr $r / $vr]
1698	}
1699	set heightScale [GetHeightmapScale]
1700	set bmin [expr $heightScale * $dataScale * $vmin]
1701	set bmax [expr $heightScale * $dataScale * $vmax]
1702	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1703	SendCmd "axis bounds z $bmin $bmax"
1704	SendCmd "axis range z $_limits($_curFldName)"
1705	}
1706
1707	#
1708	# SetCurrentColormap --
1709	#
1710	itcl::body Rappture::VtkHeightmapViewer::SetCurrentColormap { name } {
1711	# Keep track of the colormaps that we build.
1712	if { ![info exists _colormaps($name)] } {
1713	BuildColormap $name
1714	set _colormaps($name) 1
1715	}
1716	set _currentColormap $name
1717	SendCmd "heightmap colormap $_currentColormap"
1718	}
1719
1720
1721	#
1722	# BuildColormap --
1723	#
1724	# Build the designated colormap on the server.
1725	#
1726	itcl::body Rappture::VtkHeightmapViewer::BuildColormap { name } {
1727	set cmap [ColorsToColormap $name]
1728	if { [llength $cmap] == 0 } {
1729	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1730	}
1731	set wmap "0.0 1.0 1.0 1.0"
1732	SendCmd "colormap add $name { $cmap } { $wmap }"
1733	}
1734
1735	# ----------------------------------------------------------------------
1736	# CONFIGURATION OPTION: -mode
1737	# ----------------------------------------------------------------------
1738	itcl::configbody Rappture::VtkHeightmapViewer::mode {
1739	switch -- $itk_option(-mode) {
1740	"heightmap" {
1741	set _settings(isHeightmap) 1
1742	}
1743	"contour" {
1744	set _settings(isHeightmap) 0
1745	}
1746	default {
1747	error "unknown mode settings \"$itk_option(-mode)\""
1748	}
1749	}
1750	AdjustSetting isHeightmap
1751	}
1752
1753	# ----------------------------------------------------------------------
1754	# CONFIGURATION OPTION: -plotbackground
1755	# ----------------------------------------------------------------------
1756	itcl::configbody Rappture::VtkHeightmapViewer::plotbackground {
1757	if { [isconnected] } {
1758	set rgb [Color2RGB $itk_option(-plotbackground)]
1759	SendCmd "screen bgcolor $rgb"
1760	$itk_component(view) configure -background $itk_option(-plotbackground)
1761	}
1762	}
1763
1764	# ----------------------------------------------------------------------
1765	# CONFIGURATION OPTION: -plotforeground
1766	# ----------------------------------------------------------------------
1767	itcl::configbody Rappture::VtkHeightmapViewer::plotforeground {
1768	if { [isconnected] } {
1769	set rgb [Color2RGB $itk_option(-plotforeground)]
1770	SendCmd "outline color $rgb"
1771	SendCmd "axis color all $rgb"
1772	}
1773	}
1774
1775	itcl::body Rappture::VtkHeightmapViewer::limits3 { dataobj } {
1776	lappend limits x [$dataobj limits x]
1777	lappend limits y [$dataobj limits y]
1778	if { [catch { $dataobj limits $_curFldName } vlim] != 0 } {
1779	set vlim [$dataobj limits v]
1780	}
1781	lappend limits v $vlim
1782	return $limits
1783	}
1784
1785	itcl::body Rappture::VtkHeightmapViewer::BuildContourTab {} {
1786
1787	set fg [option get $itk_component(hull) font Font]
1788	#set bfg [option get $itk_component(hull) boldFont Font]
1789
1790	set inner [$itk_component(main) insert end \
1791	-title "Contour/Surface Settings" \
1792	-icon [Rappture::icon contour2]]
1793	$inner configure -borderwidth 4
1794
1795	checkbutton $inner.legend \
1796	-text "Legend" \
1797	-variable [itcl::scope _settings(legendVisible)] \
1798	-command [itcl::code $this AdjustSetting legendVisible] \
1799	-font "Arial 9"
1800
1801	checkbutton $inner.wireframe \
1802	-text "Wireframe" \
1803	-variable [itcl::scope _settings(wireframe)] \
1804	-command [itcl::code $this AdjustSetting wireframe] \
1805	-font "Arial 9"
1806
1807	itk_component add lighting {
1808	checkbutton $inner.lighting \
1809	-text "Enable Lighting" \
1810	-variable [itcl::scope _settings(lighting)] \
1811	-command [itcl::code $this AdjustSetting lighting] \
1812	-font "Arial 9"
1813	} {
1814	ignore -font
1815	}
1816	checkbutton $inner.edges \
1817	-text "Edges" \
1818	-variable [itcl::scope _settings(edges)] \
1819	-command [itcl::code $this AdjustSetting edges] \
1820	-font "Arial 9"
1821
1822	itk_component add outline {
1823	checkbutton $inner.outline \
1824	-text "Outline" \
1825	-variable [itcl::scope _settings(outline)] \
1826	-command [itcl::code $this AdjustSetting outline] \
1827	-font "Arial 9"
1828	} {
1829	ignore -font
1830	}
1831	checkbutton $inner.stretch \
1832	-text "Stretch to fit" \
1833	-variable [itcl::scope _settings(stretchToFit)] \
1834	-command [itcl::code $this AdjustSetting stretchToFit] \
1835	-font "Arial 9"
1836
1837	checkbutton $inner.isolines \
1838	-text "Isolines" \
1839	-variable [itcl::scope _settings(isolinesVisible)] \
1840	-command [itcl::code $this AdjustSetting isolinesVisible] \
1841	-font "Arial 9"
1842
1843	checkbutton $inner.colormapDiscrete \
1844	-text "Discrete Colormap" \
1845	-variable [itcl::scope _settings(colormapDiscrete)] \
1846	-command [itcl::code $this AdjustSetting colormapDiscrete] \
1847	-font "Arial 9"
1848
1849	itk_component add field_l {
1850	label $inner.field_l -text "Field" -font "Arial 9"
1851	} {
1852	ignore -font
1853	}
1854	itk_component add field {
1855	Rappture::Combobox $inner.field -width 10 -editable no
1856	}
1857	bind $inner.field <<Value>> \
1858	[itcl::code $this AdjustSetting field]
1859
1860	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1861	itk_component add colormap {
1862	Rappture::Combobox $inner.colormap -width 10 -editable no
1863	}
1864	$inner.colormap choices insert end \
1865	"BCGYR" "BCGYR" \
1866	"BGYOR" "BGYOR" \
1867	"blue" "blue" \
1868	"blue-to-brown" "blue-to-brown" \
1869	"blue-to-orange" "blue-to-orange" \
1870	"blue-to-grey" "blue-to-grey" \
1871	"green-to-magenta" "green-to-magenta" \
1872	"greyscale" "greyscale" \
1873	"nanohub" "nanohub" \
1874	"rainbow" "rainbow" \
1875	"spectral" "spectral" \
1876	"ROYGB" "ROYGB" \
1877	"RYGCB" "RYGCB" \
1878	"brown-to-blue" "brown-to-blue" \
1879	"grey-to-blue" "grey-to-blue" \
1880	"orange-to-blue" "orange-to-blue" \
1881	"none" "none"
1882
1883	$itk_component(colormap) value "BCGYR"
1884	bind $inner.colormap <<Value>> \
1885	[itcl::code $this AdjustSetting colormap]
1886
1887	label $inner.isolinecolor_l -text "Isolines Color" -font "Arial 9"
1888	itk_component add isolinecolor {
1889	Rappture::Combobox $inner.isolinecolor -width 10 -editable no
1890	}
1891	$inner.isolinecolor choices insert end \
1892	"black" "black" \
1893	"blue" "blue" \
1894	"cyan" "cyan" \
1895	"green" "green" \
1896	"grey" "grey" \
1897	"magenta" "magenta" \
1898	"orange" "orange" \
1899	"red" "red" \
1900	"white" "white" \
1901	"none" "none"
1902
1903	$itk_component(isolinecolor) value "black"
1904	bind $inner.isolinecolor <<Value>> \
1905	[itcl::code $this AdjustSetting isolineColor]
1906
1907	label $inner.background_l -text "Background Color" -font "Arial 9"
1908	itk_component add background {
1909	Rappture::Combobox $inner.background -width 10 -editable no
1910	}
1911	$inner.background choices insert end \
1912	"black" "black" \
1913	"white" "white" \
1914	"grey" "grey"
1915
1916	$itk_component(background) value "white"
1917	bind $inner.background <<Value>> [itcl::code $this AdjustSetting background]
1918
1919	itk_component add opacity_l {
1920	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1921	} {
1922	ignore -font
1923	}
1924	itk_component add opacity {
1925	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1926	-variable [itcl::scope _settings(opacity)] \
1927	-showvalue off \
1928	-command [itcl::code $this AdjustSetting opacity]
1929	}
1930	itk_component add scale_l {
1931	label $inner.scale_l -text "Scale" -font "Arial 9"
1932	} {
1933	ignore -font
1934	}
1935	itk_component add scale {
1936	::scale $inner.scale -from 0 -to 100 -orient horizontal \
1937	-variable [itcl::scope _settings(heightmapScale)] \
1938	-showvalue off \
1939	-command [itcl::code $this AdjustSetting heightmapScale]
1940	}
1941	label $inner.numisolines_l -text "Number of Isolines" -font "Arial 9"
1942	itk_component add numisolines {
1943	Rappture::Spinint $inner.numisolines \
1944	-min 2 -max 50 -font "arial 9"
1945	}
1946	$itk_component(numisolines) value $_settings(numIsolines)
1947	bind $itk_component(numisolines) <<Value>> \
1948	[itcl::code $this AdjustSetting numIsolines]
1949
1950	frame $inner.separator1 -height 2 -relief sunken -bd 1
1951	frame $inner.separator2 -height 2 -relief sunken -bd 1
1952
1953	blt::table $inner \
1954	0,0 $inner.field_l -anchor w -pady 2 \
1955	0,1 $inner.field -anchor w -pady 2 -fill x \
1956	1,0 $inner.colormap_l -anchor w -pady 2 \
1957	1,1 $inner.colormap -anchor w -pady 2 -fill x \
1958	2,0 $inner.isolinecolor_l -anchor w -pady 2 \
1959	2,1 $inner.isolinecolor -anchor w -pady 2 -fill x \
1960	3,0 $inner.background_l -anchor w -pady 2 \
1961	3,1 $inner.background -anchor w -pady 2 -fill x \
1962	4,0 $inner.numisolines_l -anchor w -pady 2 \
1963	4,1 $inner.numisolines -anchor w -pady 2 \
1964	5,0 $inner.stretch -anchor w -pady 2 -cspan 2 \
1965	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
1966	7,0 $inner.legend -anchor w -pady 2 -cspan 2 \
1967	8,0 $inner.colormapDiscrete -anchor w -pady 2 -cspan 2 \
1968	9,0 $inner.wireframe -anchor w -pady 2 -cspan 2\
1969	10,0 $inner.isolines -anchor w -pady 2 -cspan 2 \
1970	11,0 $inner.separator1 -padx 2 -fill x -cspan 2 \
1971	12,0 $inner.outline -anchor w -pady 2 -cspan 2 \
1972	13,0 $inner.separator2 -padx 2 -fill x -cspan 2 \
1973	14,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
1974	15,0 $inner.opacity_l -anchor w -pady 2 \
1975	15,1 $inner.opacity -fill x -pady 2 \
1976	16,0 $inner.scale_l -anchor w -pady 2 -cspan 2 \
1977	16,1 $inner.scale -fill x -pady 2 -cspan 2 \
1978
1979	blt::table configure $inner r* c* -resize none
1980	blt::table configure $inner r17 c1 -resize expand
1981	}
1982
1983	itcl::body Rappture::VtkHeightmapViewer::BuildAxisTab {} {
1984
1985	set fg [option get $itk_component(hull) font Font]
1986	#set bfg [option get $itk_component(hull) boldFont Font]
1987
1988	set inner [$itk_component(main) insert end \
1989	-title "Axis Settings" \
1990	-icon [Rappture::icon axis2]]
1991	$inner configure -borderwidth 4
1992
1993	checkbutton $inner.visible \
1994	-text "Axes" \
1995	-variable [itcl::scope _settings(axisVisible)] \
1996	-command [itcl::code $this AdjustSetting axisVisible] \
1997	-font "Arial 9"
1998	checkbutton $inner.labels \
1999	-text "Axis Labels" \
2000	-variable [itcl::scope _settings(axisLabels)] \
2001	-command [itcl::code $this AdjustSetting axisLabels] \
2002	-font "Arial 9"
2003	label $inner.grid_l -text "Grid" -font "Arial 9"
2004	checkbutton $inner.xgrid \
2005	-text "X" \
2006	-variable [itcl::scope _settings(axisXGrid)] \
2007	-command [itcl::code $this AdjustSetting axisXGrid] \
2008	-font "Arial 9"
2009	checkbutton $inner.ygrid \
2010	-text "Y" \
2011	-variable [itcl::scope _settings(axisYGrid)] \
2012	-command [itcl::code $this AdjustSetting axisYGrid] \
2013	-font "Arial 9"
2014	checkbutton $inner.zgrid \
2015	-text "Z" \
2016	-variable [itcl::scope _settings(axisZGrid)] \
2017	-command [itcl::code $this AdjustSetting axisZGrid] \
2018	-font "Arial 9"
2019	checkbutton $inner.minorticks \
2020	-text "Minor Ticks" \
2021	-variable [itcl::scope _settings(axisMinorTicks)] \
2022	-command [itcl::code $this AdjustSetting axisMinorTicks] \
2023	-font "Arial 9"
2024
2025
2026	label $inner.mode_l -text "Mode" -font "Arial 9"
2027
2028	itk_component add axisflymode {
2029	Rappture::Combobox $inner.mode -width 10 -editable no
2030	}
2031	$inner.mode choices insert end \
2032	"static_triad" "static" \
2033	"closest_triad" "closest" \
2034	"furthest_triad" "furthest" \
2035	"outer_edges" "outer"
2036	$itk_component(axisflymode) value "static"
2037	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting axisFlymode]
2038
2039	blt::table $inner \
2040	0,0 $inner.visible -anchor w -cspan 4 \
2041	1,0 $inner.labels -anchor w -cspan 4 \
2042	2,0 $inner.minorticks -anchor w -cspan 4 \
2043	4,0 $inner.grid_l -anchor w \
2044	4,1 $inner.xgrid -anchor w \
2045	4,2 $inner.ygrid -anchor w \
2046	4,3 $inner.zgrid -anchor w \
2047	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
2048	5,1 $inner.mode -fill x -cspan 3
2049
2050	blt::table configure $inner r* c* -resize none
2051	blt::table configure $inner r7 c6 -resize expand
2052	blt::table configure $inner r3 -height 0.125i
2053	}
2054
2055
2056	itcl::body Rappture::VtkHeightmapViewer::BuildCameraTab {} {
2057	set inner [$itk_component(main) insert end \
2058	-title "Camera Settings" \
2059	-icon [Rappture::icon camera]]
2060	$inner configure -borderwidth 4
2061
2062	label $inner.view_l -text "view" -font "Arial 9"
2063	set f [frame $inner.view]
2064	foreach side { front back left right top bottom } {
2065	button $f.$side -image [Rappture::icon view$side] \
2066	-command [itcl::code $this SetOrientation $side]
2067	Rappture::Tooltip::for $f.$side "Change the view to $side"
2068	pack $f.$side -side left
2069	}
2070
2071	blt::table $inner \
2072	0,0 $inner.view_l -anchor e -pady 2 \
2073	0,1 $inner.view -anchor w -pady 2
2074
2075	set labels { qx qy qz qw xpan ypan zoom }
2076	set row 1
2077	foreach tag $labels {
2078	label $inner.${tag}label -text $tag -font "Arial 9"
2079	entry $inner.${tag} -font "Arial 9" -bg white \
2080	-textvariable [itcl::scope _view($tag)]
2081	bind $inner.${tag} <Return> \
2082	[itcl::code $this camera set ${tag}]
2083	bind $inner.${tag} <KP_Enter> \
2084	[itcl::code $this camera set ${tag}]
2085	blt::table $inner \
2086	$row,0 $inner.${tag}label -anchor e -pady 2 \
2087	$row,1 $inner.${tag} -anchor w -pady 2
2088	blt::table configure $inner r$row -resize none
2089	incr row
2090	}
2091	checkbutton $inner.ortho \
2092	-text "Orthographic Projection" \
2093	-variable [itcl::scope _view(ortho)] \
2094	-command [itcl::code $this camera set ortho] \
2095	-font "Arial 9"
2096	blt::table $inner \
2097	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2098	blt::table configure $inner r$row -resize none
2099	incr row
2100
2101	blt::table configure $inner c* r* -resize none
2102	blt::table configure $inner c2 -resize expand
2103	blt::table configure $inner r$row -resize expand
2104	}
2105
2106	#
2107	# camera --
2108	#
2109	itcl::body Rappture::VtkHeightmapViewer::camera {option args} {
2110	switch -- $option {
2111	"show" {
2112	puts [array get _view]
2113	}
2114	"set" {
2115	set who [lindex $args 0]
2116	set x $_view($who)
2117	set code [catch { string is double $x } result]
2118	if { $code != 0 \|\| !$result } {
2119	return
2120	}
2121	switch -- $who {
2122	"ortho" {
2123	if {$_view(ortho)} {
2124	SendCmd "camera mode ortho"
2125	} else {
2126	SendCmd "camera mode persp"
2127	}
2128	}
2129	"xpan" - "ypan" {
2130	PanCamera
2131	}
2132	"qx" - "qy" - "qz" - "qw" {
2133	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2134	$_arcball quaternion $q
2135	EventuallyRotate $q
2136	}
2137	"zoom" {
2138	SendCmd "camera zoom $_view(zoom)"
2139	}
2140	}
2141	}
2142	}
2143	}
2144
2145	itcl::body Rappture::VtkHeightmapViewer::GetVtkData { args } {
2146	set bytes ""
2147	foreach dataobj [get] {
2148	foreach comp [$dataobj components] {
2149	set tag $dataobj-$comp
2150	#set contents [ConvertToVtkData $dataobj $comp]
2151	set contents [$dataobj vtkdata $comp]
2152	append bytes "$contents\n\n"
2153	}
2154	}
2155	return [list .vtk $bytes]
2156	}
2157
2158	itcl::body Rappture::VtkHeightmapViewer::GetImage { args } {
2159	if { [image width $_image(download)] > 0 &&
2160	[image height $_image(download)] > 0 } {
2161	set bytes [$_image(download) data -format "jpeg -quality 100"]
2162	set bytes [Rappture::encoding::decode -as b64 $bytes]
2163	return [list .jpg $bytes]
2164	}
2165	return ""
2166	}
2167
2168	itcl::body Rappture::VtkHeightmapViewer::BuildDownloadPopup { popup command } {
2169	Rappture::Balloon $popup \
2170	-title "[Rappture::filexfer::label downloadWord] as..."
2171	set inner [$popup component inner]
2172	label $inner.summary -text "" -anchor w
2173	radiobutton $inner.vtk_button -text "VTK data file" \
2174	-variable [itcl::scope _downloadPopup(format)] \
2175	-font "Arial 9 " \
2176	-value vtk
2177	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2178	radiobutton $inner.image_button -text "Image File" \
2179	-variable [itcl::scope _downloadPopup(format)] \
2180	-font "Arial 9 " \
2181	-value image
2182	Rappture::Tooltip::for $inner.image_button \
2183	"Save as digital image."
2184
2185	button $inner.ok -text "Save" \
2186	-highlightthickness 0 -pady 2 -padx 3 \
2187	-command $command \
2188	-compound left \
2189	-image [Rappture::icon download]
2190
2191	button $inner.cancel -text "Cancel" \
2192	-highlightthickness 0 -pady 2 -padx 3 \
2193	-command [list $popup deactivate] \
2194	-compound left \
2195	-image [Rappture::icon cancel]
2196
2197	blt::table $inner \
2198	0,0 $inner.summary -cspan 2 \
2199	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2200	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2201	4,1 $inner.cancel -width .9i -fill y \
2202	4,0 $inner.ok -padx 2 -width .9i -fill y
2203	blt::table configure $inner r3 -height 4
2204	blt::table configure $inner r4 -pady 4
2205	raise $inner.image_button
2206	$inner.vtk_button invoke
2207	return $inner
2208	}
2209
2210	#
2211	# SetObjectStyle --
2212	#
2213	# Set the style of the heightmap/contour object. This gets calls
2214	# for each dataset once as it is loaded. It can overridden by
2215	# the user controls.
2216	#
2217	#
2218	itcl::body Rappture::VtkHeightmapViewer::SetObjectStyle { dataobj comp } {
2219	# Parse style string.
2220	set tag $dataobj-$comp
2221	array set style {
2222	-color BCGYR
2223	-opacity 100
2224	-levels 10
2225	}
2226	set stylelist [$dataobj style $comp]
2227	if { $stylelist != "" } {
2228	array set style $stylelist
2229	}
2230	# This is too complicated. We want to set the colormap, number of
2231	# isolines and opacity for the dataset. They can be the default values,
2232	# the style hints loaded with the dataset, or set by user controls. As
2233	# datasets get loaded, they first use the defaults that are overidden
2234	# by the style hints. If the user changes the global controls, then that
2235	# overrides everything else. I don't know what it means when global
2236	# controls are specified as style hints by each dataset. It complicates
2237	# the code to handle aberrant cases.
2238
2239	if { $_changed(opacity) } {
2240	set style(-opacity) $_settings(opacity)
2241	}
2242	if { $_changed(numIsolines) } {
2243	set style(-levels) $_settings(numIsolines)
2244	}
2245	if { $_changed(colormap) } {
2246	set style(-color) $_settings(colormap)
2247	}
2248	if { $_currentColormap == "" } {
2249	$itk_component(colormap) value $style(-color)
2250	}
2251	set _currentOpacity $style(-opacity)
2252	if { $_currentNumIsolines != $style(-levels) } {
2253	set _currentNumIsolines $style(-levels)
2254	set _settings(numIsolines) $_currentNumIsolines
2255	$itk_component(numisolines) value $_currentNumIsolines
2256	DrawLegend
2257	}
2258	SendCmd "outline add $tag"
2259	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2260	SendCmd "outline visible $_settings(outline) $tag"
2261	set scale [GetHeightmapScale]
2262	SendCmd "heightmap add numcontours $_currentNumIsolines $scale $tag"
2263	set _comp2scale($tag) $_settings(heightmapScale)
2264	SendCmd "heightmap edges $_settings(edges) $tag"
2265	SendCmd "heightmap wireframe $_settings(wireframe) $tag"
2266	SetCurrentColormap $style(-color)
2267	set color [$itk_component(isolinecolor) value]
2268	SendCmd "heightmap isolinecolor [Color2RGB $color] $tag"
2269	SendCmd "heightmap lighting $_settings(isHeightmap) $tag"
2270	}
2271
2272	itcl::body Rappture::VtkHeightmapViewer::IsValidObject { dataobj } {
2273	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2274	return 0
2275	}
2276	return 1
2277	}
2278
2279	# ----------------------------------------------------------------------
2280	# USAGE: ReceiveLegend <colormap> <title> <min> <max> <size>
2281	#
2282	# Invoked automatically whenever the "legend" command comes in from
2283	# the rendering server. Indicates that binary image data with the
2284	# specified <size> will follow.
2285	# ----------------------------------------------------------------------
2286	itcl::body Rappture::VtkHeightmapViewer::ReceiveLegend { colormap title min max size } {
2287	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2288	if { [isconnected] } {
2289	set bytes [ReceiveBytes $size]
2290	if { ![info exists _image(legend)] } {
2291	set _image(legend) [image create photo]
2292	}
2293	$_image(legend) configure -data $bytes
2294	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2295	if { [catch {DrawLegend} errs] != 0 } {
2296	global errorInfo
2297	puts stderr "errs=$errs errorInfo=$errorInfo"
2298	}
2299	}
2300	}
2301
2302	#
2303	# DrawLegend --
2304	#
2305	# Draws the legend in the own canvas on the right side of the plot area.
2306	#
2307	itcl::body Rappture::VtkHeightmapViewer::DrawLegend {} {
2308	set fname $_curFldName
2309	set c $itk_component(view)
2310	set w [winfo width $c]
2311	set h [winfo height $c]
2312	set font "Arial 8"
2313	set lineht [font metrics $font -linespace]
2314
2315	if { [string match "component*" $fname] } {
2316	set title ""
2317	} else {
2318	if { [info exists _fields($fname)] } {
2319	foreach { title units } $_fields($fname) break
2320	if { $units != "" } {
2321	set title [format "%s (%s)" $title $units]
2322	}
2323	} else {
2324	set title $fname
2325	}
2326	}
2327	set x [expr $w - 2]
2328	if { !$_settings(legendVisible) } {
2329	$c delete legend
2330	return
2331	}
2332	if { [$c find withtag "legend"] == "" } {
2333	set y 2
2334	# If there's a legend title, create a text item for the title.
2335	$c create text $x $y \
2336	-anchor ne \
2337	-fill $itk_option(-plotforeground) -tags "title legend" \
2338	-font $font
2339	incr y $lineht
2340	$c create text $x $y \
2341	-anchor ne \
2342	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2343	-font $font
2344	incr y $lineht
2345	$c create image $x $y \
2346	-anchor ne \
2347	-image $_image(legend) -tags "colormap legend"
2348	$c create rectangle $x $y 1 1 \
2349	-fill "" -outline "" -tags "sensor legend"
2350	$c create text $x [expr {$h-2}] \
2351	-anchor se \
2352	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2353	-font $font
2354	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2355	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2356	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2357	}
2358	$c delete isoline
2359	set x2 $x
2360	set iw [image width $_image(legend)]
2361	set ih [image height $_image(legend)]
2362	set x1 [expr $x2 - ($iw*12)/10]
2363	set color [$itk_component(isolinecolor) value]
2364
2365	# Draw the isolines on the legend.
2366	if { $color != "none" && [info exists _limits($_curFldName)] &&
2367	$_settings(isolinesVisible) && $_currentNumIsolines > 0 } {
2368	set pixels [blt::vector create \#auto]
2369	set values [blt::vector create \#auto]
2370	set range [image height $_image(legend)]
2371	# Order of pixels is max to min (max is at top of legend).
2372	$pixels seq $ih 0 $_currentNumIsolines
2373
2374	set offset [expr 2 + $lineht]
2375	# If there's a legend title, increase the offset by the line height.
2376	if { $title != "" } {
2377	incr offset $lineht
2378	}
2379	$pixels expr {round($pixels + $offset)}
2380	# Order of values is min to max.
2381	foreach { vmin vmax } $_limits($_curFldName) break
2382	$values seq $vmin $vmax $_currentNumIsolines
2383	set tags "isoline legend"
2384	array unset _isolines
2385	foreach pos [$pixels range 0 end] value [$values range end 0] {
2386	set y1 [expr int($pos)]
2387	for { set off 0 } { $off < 3 } { incr off } {
2388	set _isolines([expr $y1 + $off]) $value
2389	set _isolines([expr $y1 - $off]) $value
2390	}
2391	set id [$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags]
2392	}
2393	blt::vector destroy $pixels $values
2394	}
2395
2396	$c bind title <ButtonPress> [itcl::code $this Combo post]
2397	$c bind title <Enter> [itcl::code $this Combo activate]
2398	$c bind title <Leave> [itcl::code $this Combo deactivate]
2399	# Reset the item coordinates according the current size of the plot.
2400	if { [info exists _limits($_curFldName)] } {
2401	foreach { vmin vmax } $_limits($_curFldName) break
2402	$c itemconfigure vmin -text [format %g $vmin]
2403	$c itemconfigure vmax -text [format %g $vmax]
2404	}
2405	set y 2
2406	# If there's a legend title, move the title to the correct position
2407	if { $title != "" } {
2408	$c itemconfigure title -text $title
2409	$c coords title $x $y
2410	incr y $lineht
2411	}
2412	$c coords vmax $x $y
2413	incr y $lineht
2414	$c coords colormap $x $y
2415	set ix [image width $_image(legend)]
2416	set ih [image height $_image(legend)]
2417	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2418	$c raise sensor
2419	$c coords vmin $x [expr {$h - 2}]
2420	}
2421
2422	#
2423	# EnterLegend --
2424	#
2425	itcl::body Rappture::VtkHeightmapViewer::EnterLegend { x y } {
2426	SetLegendTip $x $y
2427	}
2428
2429	#
2430	# MotionLegend --
2431	#
2432	itcl::body Rappture::VtkHeightmapViewer::MotionLegend { x y } {
2433	Rappture::Tooltip::tooltip cancel
2434	set c $itk_component(view)
2435	set cw [winfo width $c]
2436	set ch [winfo height $c]
2437	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2438	SetLegendTip $x $y
2439	}
2440	}
2441
2442	#
2443	# LeaveLegend --
2444	#
2445	itcl::body Rappture::VtkHeightmapViewer::LeaveLegend { } {
2446	Rappture::Tooltip::tooltip cancel
2447	.rappturetooltip configure -icon ""
2448	}
2449
2450	#
2451	# SetLegendTip --
2452	#
2453	itcl::body Rappture::VtkHeightmapViewer::SetLegendTip { x y } {
2454	set fname $_curFldName
2455	set c $itk_component(view)
2456	set w [winfo width $c]
2457	set h [winfo height $c]
2458	set font "Arial 8"
2459	set lineht [font metrics $font -linespace]
2460
2461	set ih [image height $_image(legend)]
2462	# Subtract off the offset of the color ramp from the top of the canvas
2463	set iy [expr $y - ($lineht + 2)]
2464
2465	if { [string match "component*" $fname] } {
2466	set title ""
2467	} else {
2468	if { [info exists _fields($fname)] } {
2469	foreach { title units } $_fields($fname) break
2470	if { $units != "" } {
2471	set title [format "%s (%s)" $title $units]
2472	}
2473	} else {
2474	set title $fname
2475	}
2476	}
2477	# If there's a legend title, increase the offset by the line height.
2478	if { $title != "" } {
2479	incr iy -$lineht
2480	}
2481
2482	# Make a swatch of the selected color
2483	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2484	return
2485	}
2486
2487	if { ![info exists _image(swatch)] } {
2488	set _image(swatch) [image create photo -width 24 -height 24]
2489	}
2490	set color [eval format "\#%02x%02x%02x" $pixel]
2491	$_image(swatch) put black -to 0 0 23 23
2492	$_image(swatch) put $color -to 1 1 22 22
2493
2494	# Compute the value of the point
2495	if { [info exists _limits($fname)] } {
2496	foreach { vmin vmax } $_limits($fname) break
2497	set t [expr 1.0 - (double($iy) / double($ih-1))]
2498	set value [expr $t * ($vmax - $vmin) + $vmin]
2499	} else {
2500	set value 0.0
2501	}
2502	set tipx [expr $x + 15]
2503	set tipy [expr $y - 5]
2504	.rappturetooltip configure -icon $_image(swatch)
2505	if { [info exists _isolines($y)] } {
2506	Rappture::Tooltip::text $c [format "$title %g (isoline)" $_isolines($y)]
2507	} else {
2508	Rappture::Tooltip::text $c [format "$title %g" $value]
2509	}
2510	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2511	}
2512
2513	# ----------------------------------------------------------------------
2514	# USAGE: _dropdown post
2515	# USAGE: _dropdown unpost
2516	# USAGE: _dropdown select
2517	#
2518	# Used internally to handle the dropdown list for this combobox. The
2519	# post/unpost options are invoked when the list is posted or unposted
2520	# to manage the relief of the controlling button. The select option
2521	# is invoked whenever there is a selection from the list, to assign
2522	# the value back to the gauge.
2523	# ----------------------------------------------------------------------
2524	itcl::body Rappture::VtkHeightmapViewer::Combo {option} {
2525	set c $itk_component(view)
2526	switch -- $option {
2527	post {
2528	foreach { x1 y1 x2 y2 } [$c bbox title] break
2529	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2530	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2531	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2532	tk_popup $itk_component(fieldmenu) $x $y
2533	}
2534	activate {
2535	$c itemconfigure title -fill red
2536	}
2537	deactivate {
2538	$c itemconfigure title -fill $itk_option(-plotforeground)
2539	}
2540	invoke {
2541	$itk_component(field) value $_curFldLabel
2542	AdjustSetting field
2543	}
2544	default {
2545	error "bad option \"$option\": should be post, unpost, select"
2546	}
2547	}
2548	}
2549
2550	itcl::body Rappture::VtkHeightmapViewer::GetHeightmapScale {} {
2551	if { $_settings(isHeightmap) } {
2552	set val $_settings(heightmapScale)
2553	set sval [expr { $val >= 50 ? double($val)/50.0 : 1.0/(2.0-(double($val)/50.0)) }]
2554	return $sval
2555	}
2556	set sval 0
2557	}
2558
2559	itcl::body Rappture::VtkHeightmapViewer::SetOrientation { side } {
2560	array set positions {
2561	front "0.707107 0.707107 0 0"
2562	back "0 0 0.707107 0.707107"
2563	left "0.5 0.5 -0.5 -0.5"
2564	right "0.5 0.5 0.5 0.5"
2565	top "1 0 0 0"
2566	bottom "0 1 0 0"
2567	}
2568	foreach name { qw qx qy qz } value $positions($side) {
2569	set _view($name) $value
2570	}
2571	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2572	$_arcball quaternion $q
2573	SendCmd "camera orient $q"
2574	SendCmd "camera reset"
2575	set _view(xpan) 0
2576	set _view(ypan) 0
2577	set _view(zoom) 1.0
2578	}

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