Context Navigation

source: branches/1.3/gui/scripts/vtkheightmapviewer.tcl @ 4676

Last change on this file since 4676 was 4676, checked in by ldelgass, 10 years ago
merge r4642 from trunk
File size: 87.5 KB

Line
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) 2004-2014 HUBzero Foundation, LLC
10	#
11	# See the file "license.terms" for information on usage and
12	# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
13	# ======================================================================
14	package require Itk
15	package require BLT
16	#package require Img
17
18	option add *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
126	private variable _maxScale 100; # This is the # of times the x-axis
127	# and y-axis ranges can differ before
128	# automatically turning on
129	# -stretchtofit
130
131	private variable _click ; # info used for rotate operations
132	private variable _limits ; # Holds overall limits for all dataobjs
133	# using the viewer.
134	private variable _view ; # view params for 3D view
135	private variable _settings
136	private variable _changed
137	private variable _initialStyle ""; # First found style in dataobjects.
138	private variable _reset 1; # Indicates if camera needs to be reset
139	# to starting position.
140	private variable _beforeConnect 1; # Indicates if camera needs to be reset
141	# to starting position.
142
143	private variable _first "" ; # This is the topmost dataset.
144	private variable _start 0
145	private variable _isolines
146	private variable _contourList ""
147
148	common _downloadPopup; # download options from popup
149	private common _hardcopy
150	private variable _width 0
151	private variable _height 0
152	private variable _legendWidth 0
153	private variable _legendHeight 0
154	private variable _resizePending 0
155	private variable _rotatePending 0
156	private variable _legendPending 0
157	private variable _fieldNames {}
158	private variable _fields
159	private variable _curFldName ""
160	private variable _curFldLabel ""
161	private variable _colorMode "scalar";# Mode of colormap (vmag or scalar)
162	}
163
164	itk::usual VtkHeightmapViewer {
165	keep -background -foreground -cursor -font
166	keep -plotbackground -plotforeground -mode
167	}
168
169	# ----------------------------------------------------------------------
170	# CONSTRUCTOR
171	# ----------------------------------------------------------------------
172	itcl::body Rappture::VtkHeightmapViewer::constructor {hostlist args} {
173	set _serverType "vtkvis"
174
175	EnableWaitDialog 900
176	# Rebuild event
177	$_dispatcher register !rebuild
178	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
179
180	# Resize event
181	$_dispatcher register !resize
182	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
183
184	# Rotate event
185	$_dispatcher register !rotate
186	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
187
188	# Legend event
189	$_dispatcher register !legend
190	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
191
192	#
193	# Populate parser with commands handle incoming requests
194	#
195	$_parser alias image [itcl::code $this ReceiveImage]
196	$_parser alias dataset [itcl::code $this ReceiveDataset]
197	$_parser alias legend [itcl::code $this ReceiveLegend]
198
199	# Create image for legend colorbar.
200	set _image(legend) [image create photo]
201
202	# Initialize the view to some default parameters.
203	array set _view {
204	qw 0.36
205	qx 0.25
206	qy 0.50
207	qz 0.70
208	zoom 1.0
209	xpan 0
210	ypan 0
211	ortho 0
212	}
213	set _arcball [blt::arcball create 100 100]
214	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
215	$_arcball quaternion $q
216
217	array set _settings {
218	-axisflymode "static"
219	-axislabels 1
220	-axisminorticks 1
221	-axisvisible 1
222	-colormap BCGYR
223	-colormapdiscrete 0
224	-colormapvisible 1
225	-edges 0
226	-field "Default"
227	-heightmapscale 50
228	-isheightmap 0
229	-isolinecolor black
230	-isolinesvisible 1
231	-legendvisible 1
232	-lighting 1
233	-numisolines 10
234	-opacity 100
235	-outline 0
236	-savelighting 1
237	-saveopacity 100
238	-saveoutline 0
239	-stretchtofit 0
240	-wireframe 0
241	-xgrid 0
242	-ygrid 0
243	-zgrid 0
244	}
245	array set _changed {
246	-colormap 0
247	-numisolines 0
248	-opacity 0
249	}
250	itk_component add view {
251	canvas $itk_component(plotarea).view \
252	-highlightthickness 0 -borderwidth 0
253	} {
254	usual
255	ignore -highlightthickness -borderwidth -background
256	}
257
258	itk_component add fieldmenu {
259	menu $itk_component(plotarea).menu \
260	-relief flat \
261	-tearoff no
262	} {
263	usual
264	ignore -background -foreground -relief -tearoff
265	}
266	set c $itk_component(view)
267	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
268	bind $c <4> [itcl::code $this Zoom in 0.25]
269	bind $c <5> [itcl::code $this Zoom out 0.25]
270	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
271	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
272	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
273	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
274	bind $c <Enter> "focus %W"
275	bind $c <Control-F1> [itcl::code $this ToggleConsole]
276
277	# Fix the scrollregion in case we go off screen
278	$c configure -scrollregion [$c bbox all]
279
280	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
281	set _map(cwidth) -1
282	set _map(cheight) -1
283	set _map(zoom) 1.0
284	set _map(original) ""
285
286	set f [$itk_component(main) component controls]
287	itk_component add reset {
288	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
289	-highlightthickness 0 \
290	-image [Rappture::icon reset-view] \
291	-command [itcl::code $this CameraReset]
292	} {
293	usual
294	ignore -highlightthickness
295	}
296	pack $itk_component(reset) -side top -padx 2 -pady { 2 0 }
297	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
298
299	itk_component add zoomin {
300	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
301	-highlightthickness 0 \
302	-image [Rappture::icon zoom-in] \
303	-command [itcl::code $this Zoom in]
304	} {
305	usual
306	ignore -highlightthickness
307	}
308	pack $itk_component(zoomin) -side top -padx 2 -pady { 2 0 }
309	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
310
311	itk_component add zoomout {
312	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
313	-highlightthickness 0 \
314	-image [Rappture::icon zoom-out] \
315	-command [itcl::code $this Zoom out]
316	} {
317	usual
318	ignore -highlightthickness
319	}
320	pack $itk_component(zoomout) -side top -padx 2 -pady { 2 0 }
321	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
322
323	itk_component add mode {
324	Rappture::PushButton $f.mode \
325	-onimage [Rappture::icon surface] \
326	-offimage [Rappture::icon surface] \
327	-variable [itcl::scope _settings(-isheightmap)] \
328	-command [itcl::code $this AdjustSetting -isheightmap] \
329	}
330	Rappture::Tooltip::for $itk_component(mode) \
331	"Toggle the surface/contour on/off"
332	pack $itk_component(mode) -padx 2 -pady { 2 0 }
333
334	itk_component add stretchtofit {
335	Rappture::PushButton $f.stretchtofit \
336	-onimage [Rappture::icon stretchtofit] \
337	-offimage [Rappture::icon stretchtofit] \
338	-variable [itcl::scope _settings(-stretchtofit)] \
339	-command [itcl::code $this AdjustSetting -stretchtofit] \
340	}
341	Rappture::Tooltip::for $itk_component(stretchtofit) \
342	"Stretch plot to fit window on/off"
343	pack $itk_component(stretchtofit) -padx 2 -pady 2
344
345	if { [catch {
346	BuildContourTab
347	BuildAxisTab
348	BuildCameraTab
349	} errs] != 0 } {
350	global errorInfo
351	puts stderr "errs=$errs errorInfo=$errorInfo"
352	}
353
354	# Hack around the Tk panewindow. The problem is that the requested
355	# size of the 3d view isn't set until an image is retrieved from
356	# the server. So the panewindow uses the tiny size.
357	set w 10000
358	pack forget $itk_component(view)
359	blt::table $itk_component(plotarea) \
360	0,0 $itk_component(view) -fill both -reqwidth $w
361	blt::table configure $itk_component(plotarea) c1 -resize none
362
363	# Bindings for panning via mouse
364	bind $itk_component(view) <ButtonPress-2> \
365	[itcl::code $this Pan click %x %y]
366	bind $itk_component(view) <B2-Motion> \
367	[itcl::code $this Pan drag %x %y]
368	bind $itk_component(view) <ButtonRelease-2> \
369	[itcl::code $this Pan release %x %y]
370
371	#bind $itk_component(view) <ButtonRelease-3> \
372	# [itcl::code $this Pick %x %y]
373
374	# Bindings for panning via keyboard
375	bind $itk_component(view) <KeyPress-Left> \
376	[itcl::code $this Pan set -10 0]
377	bind $itk_component(view) <KeyPress-Right> \
378	[itcl::code $this Pan set 10 0]
379	bind $itk_component(view) <KeyPress-Up> \
380	[itcl::code $this Pan set 0 -10]
381	bind $itk_component(view) <KeyPress-Down> \
382	[itcl::code $this Pan set 0 10]
383	bind $itk_component(view) <Shift-KeyPress-Left> \
384	[itcl::code $this Pan set -2 0]
385	bind $itk_component(view) <Shift-KeyPress-Right> \
386	[itcl::code $this Pan set 2 0]
387	bind $itk_component(view) <Shift-KeyPress-Up> \
388	[itcl::code $this Pan set 0 -2]
389	bind $itk_component(view) <Shift-KeyPress-Down> \
390	[itcl::code $this Pan set 0 2]
391
392	# Bindings for zoom via keyboard
393	bind $itk_component(view) <KeyPress-Prior> \
394	[itcl::code $this Zoom out]
395	bind $itk_component(view) <KeyPress-Next> \
396	[itcl::code $this Zoom in]
397
398	bind $itk_component(view) <Enter> "focus $itk_component(view)"
399
400	if {[string equal "x11" [tk windowingsystem]]} {
401	# Bindings for zoom via mouse
402	bind $itk_component(view) <4> [itcl::code $this Zoom out]
403	bind $itk_component(view) <5> [itcl::code $this Zoom in]
404	}
405
406	set _image(download) [image create photo]
407	eval itk_initialize $args
408	Connect
409	set _beforeConnect 0
410	}
411
412	# ----------------------------------------------------------------------
413	# DESTRUCTOR
414	# ----------------------------------------------------------------------
415	itcl::body Rappture::VtkHeightmapViewer::destructor {} {
416	Disconnect
417	image delete $_image(plot)
418	image delete $_image(download)
419	catch { blt::arcball destroy $_arcball }
420	}
421
422	itcl::body Rappture::VtkHeightmapViewer::DoResize {} {
423	if { $_width < 2 } {
424	set _width 500
425	}
426	if { $_height < 2 } {
427	set _height 500
428	}
429	set _start [clock clicks -milliseconds]
430	SendCmd "screen size [expr $_width - 20] $_height"
431
432	set font "Arial 8"
433	set lh [font metrics $font -linespace]
434	set h [expr {$_height - 2 * ($lh + 2)}]
435	if { $h != $_legendHeight } {
436	EventuallyRequestLegend
437	} else {
438	DrawLegend
439	}
440	set _resizePending 0
441	}
442
443	itcl::body Rappture::VtkHeightmapViewer::DoRotate {} {
444	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
445	SendCmd "camera orient $q"
446	set _rotatePending 0
447	}
448
449	itcl::body Rappture::VtkHeightmapViewer::EventuallyRequestLegend {} {
450	if { !$_legendPending } {
451	set _legendPending 1
452	$_dispatcher event -idle !legend
453	}
454	}
455
456	itcl::body Rappture::VtkHeightmapViewer::EventuallyResize { w h } {
457	set _width $w
458	set _height $h
459	$_arcball resize $w $h
460	if { !$_resizePending } {
461	set _resizePending 1
462	$_dispatcher event -after 250 !resize
463	}
464	}
465
466	set rotate_delay 100
467
468	itcl::body Rappture::VtkHeightmapViewer::EventuallyRotate { q } {
469	foreach { _view(qw) _view(qx) _view(qy) _view(qz) } $q break
470	if { !$_rotatePending } {
471	set _rotatePending 1
472	global rotate_delay
473	$_dispatcher event -after $rotate_delay !rotate
474	}
475	}
476
477	# ----------------------------------------------------------------------
478	# USAGE: add <dataobj> ?<settings>?
479	#
480	# Clients use this to add a data object to the plot. The optional
481	# <settings> are used to configure the plot. Allowed settings are
482	# -color, -brightness, -width, -linestyle, and -raise.
483	# ----------------------------------------------------------------------
484	itcl::body Rappture::VtkHeightmapViewer::add {dataobj {settings ""}} {
485	if { ![$dataobj isvalid] } {
486	return; # Object doesn't contain valid data.
487	}
488	array set params {
489	-color auto
490	-width 1
491	-linestyle solid
492	-brightness 0
493	-raise 0
494	-description ""
495	-param ""
496	-type ""
497	}
498	array set params $settings
499	set params(-description) ""
500	set params(-param) ""
501	array set params $settings
502
503	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
504	# can't handle -autocolors yet
505	set params(-color) white
506	}
507	set pos [lsearch -exact $_dlist $dataobj]
508	if {$pos < 0} {
509	lappend _dlist $dataobj
510	}
511	set _obj2ovride($dataobj-color) $params(-color)
512	set _obj2ovride($dataobj-width) $params(-width)
513	set _obj2ovride($dataobj-raise) $params(-raise)
514	$_dispatcher event -idle !rebuild
515	}
516
517
518	# ----------------------------------------------------------------------
519	# USAGE: delete ?<dataobj1> <dataobj2> ...?
520	#
521	# Clients use this to delete a dataobj from the plot. If no dataobjs
522	# are specified, then all dataobjs are deleted. No data objects are
523	# deleted. They are only removed from the display list.
524	#
525	# ----------------------------------------------------------------------
526	itcl::body Rappture::VtkHeightmapViewer::delete {args} {
527	if { [llength $args] == 0} {
528	set args $_dlist
529	}
530	# Delete all specified dataobjs
531	set changed 0
532	foreach dataobj $args {
533	set pos [lsearch -exact $_dlist $dataobj]
534	if { $pos < 0 } {
535	continue; # Don't know anything about it.
536	}
537	# Remove it from the dataobj list.
538	set _dlist [lreplace $_dlist $pos $pos]
539	array unset _obj2ovride $dataobj-*
540	array unset _settings $dataobj-*
541	set changed 1
542	}
543	# If anything changed, then rebuild the plot
544	if { $changed } {
545	$_dispatcher event -idle !rebuild
546	}
547	}
548
549	# ----------------------------------------------------------------------
550	# USAGE: get ?-objects?
551	# USAGE: get ?-visible?
552	# USAGE: get ?-image view?
553	#
554	# Clients use this to query the list of objects being plotted, in
555	# order from bottom to top of this result. The optional "-image"
556	# flag can also request the internal images being shown.
557	# ----------------------------------------------------------------------
558	itcl::body Rappture::VtkHeightmapViewer::get {args} {
559	if {[llength $args] == 0} {
560	set args "-objects"
561	}
562	set op [lindex $args 0]
563	switch -- $op {
564	"-objects" {
565	# put the dataobj list in order according to -raise options
566	set dlist {}
567	foreach dataobj $_dlist {
568	if { ![IsValidObject $dataobj] } {
569	continue
570	}
571	if {[info exists _obj2ovride($dataobj-raise)] &&
572	$_obj2ovride($dataobj-raise)} {
573	set dlist [linsert $dlist 0 $dataobj]
574	} else {
575	lappend dlist $dataobj
576	}
577	}
578	return $dlist
579	}
580	"-visible" {
581	set dlist {}
582	foreach dataobj $_dlist {
583	if { ![IsValidObject $dataobj] } {
584	continue
585	}
586	if { ![info exists _obj2ovride($dataobj-raise)] } {
587	# No setting indicates that the object isn't visible.
588	continue
589	}
590	# Otherwise use the -raise parameter to put the object to
591	# the front of the list.
592	if { $_obj2ovride($dataobj-raise) } {
593	set dlist [linsert $dlist 0 $dataobj]
594	} else {
595	lappend dlist $dataobj
596	}
597	}
598	return $dlist
599	}
600	-image {
601	if {[llength $args] != 2} {
602	error "wrong # args: should be \"get -image view\""
603	}
604	switch -- [lindex $args end] {
605	view {
606	return $_image(plot)
607	}
608	default {
609	error "bad image name \"[lindex $args end]\": should be view"
610	}
611	}
612	}
613	default {
614	error "bad option \"$op\": should be -objects or -image"
615	}
616	}
617	}
618
619	#
620	# scale --
621	#
622	# This gets called either incrementally as new simulations are
623	# added or all at once as a sequence of heightmaps.
624	# This accounts for all objects--even those not showing on the
625	# screen. Because of this, the limits are appropriate for all
626	# objects as the user scans through data in the ResultSet viewer.
627	#
628	itcl::body Rappture::VtkHeightmapViewer::scale {args} {
629	foreach dataobj $args {
630	if { ![$dataobj isvalid] } {
631	continue; # Object doesn't contain valid data.
632	}
633	foreach axis { x y } {
634	set lim [$dataobj limits $axis]
635	if { ![info exists _limits($axis)] } {
636	set _limits($axis) $lim
637	continue
638	}
639	foreach {min max} $lim break
640	foreach {amin amax} $_limits($axis) break
641	if { $amin > $min } {
642	set amin $min
643	}
644	if { $amax < $max } {
645	set amax $max
646	}
647	set _limits($axis) [list $amin $amax]
648	set units [$dataobj hints ${axis}units]
649	set found($units) 1
650	}
651	foreach { fname lim } [$dataobj fieldlimits] {
652	if { ![info exists _limits($fname)] } {
653	set _limits($fname) $lim
654	continue
655	}
656	foreach {min max} $lim break
657	foreach {fmin fmax} $_limits($fname) break
658	if { $fmin > $min } {
659	set fmin $min
660	}
661	if { $fmax < $max } {
662	set fmax $max
663	}
664	set _limits($fname) [list $fmin $fmax]
665	}
666	}
667	if { [array size found] > 1 } {
668	set _settings(-stretchtofit) 1
669	} else {
670	# Check if the range of the x and y axes requires that we stretch
671	# the contour to fit the plotting area. This can happen when the
672	# x and y scales differ greatly (> 100x)
673	foreach {xmin xmax} $_limits(x) break
674	foreach {ymin ymax} $_limits(y) break
675	if { (($xmax - $xmin) > (($ymax -$ymin) * $_maxScale)) \|\|
676	((($xmax - $xmin) * $_maxScale) < ($ymax -$ymin)) } {
677	set _settings(-stretchtofit) 1
678	}
679	}
680	}
681
682	# ----------------------------------------------------------------------
683	# USAGE: download coming
684	# USAGE: download controls <downloadCommand>
685	# USAGE: download now
686	#
687	# Clients use this method to create a downloadable representation
688	# of the plot. Returns a list of the form {ext string}, where
689	# "ext" is the file extension (indicating the type of data) and
690	# "string" is the data itself.
691	# ----------------------------------------------------------------------
692	itcl::body Rappture::VtkHeightmapViewer::download {option args} {
693	switch $option {
694	coming {
695	if {[catch {
696	blt::winop snap $itk_component(plotarea) $_image(download)
697	}]} {
698	$_image(download) configure -width 1 -height 1
699	$_image(download) put #000000
700	}
701	}
702	controls {
703	set popup .vtkviewerdownload
704	if { ![winfo exists .vtkviewerdownload] } {
705	set inner [BuildDownloadPopup $popup [lindex $args 0]]
706	} else {
707	set inner [$popup component inner]
708	}
709	set _downloadPopup(image_controls) $inner.image_frame
710	set num [llength [get]]
711	set num [expr {($num == 1) ? "1 result" : "$num results"}]
712	set word [Rappture::filexfer::label downloadWord]
713	$inner.summary configure -text "$word $num in the following format:"
714	update idletasks ;# Fix initial sizes
715	return $popup
716	}
717	now {
718	set popup .vtkviewerdownload
719	if {[winfo exists .vtkviewerdownload]} {
720	$popup deactivate
721	}
722	switch -- $_downloadPopup(format) {
723	"image" {
724	return [$this GetImage [lindex $args 0]]
725	}
726	"vtk" {
727	return [$this GetVtkData [lindex $args 0]]
728	}
729	}
730	return ""
731	}
732	default {
733	error "bad option \"$option\": should be coming, controls, now"
734	}
735	}
736	}
737
738	# ----------------------------------------------------------------------
739	# USAGE: Connect ?<host:port>,<host:port>...?
740	#
741	# Clients use this method to establish a connection to a new
742	# server, or to reestablish a connection to the previous server.
743	# Any existing connection is automatically closed.
744	# ----------------------------------------------------------------------
745	itcl::body Rappture::VtkHeightmapViewer::Connect {} {
746	global readyForNextFrame
747	set readyForNextFrame 1
748	set _reset 1
749	set _hosts [GetServerList "vtkvis"]
750	if { "" == $_hosts } {
751	return 0
752	}
753	set result [VisViewer::Connect $_hosts]
754	if { $result } {
755	if { $_reportClientInfo } {
756	# Tell the server the viewer, hub, user and session.
757	# Do this immediately on connect before buffering any commands
758	global env
759
760	set info {}
761	set user "???"
762	if { [info exists env(USER)] } {
763	set user $env(USER)
764	}
765	set session "???"
766	if { [info exists env(SESSION)] } {
767	set session $env(SESSION)
768	}
769	lappend info "version" "$Rappture::version"
770	lappend info "build" "$Rappture::build"
771	lappend info "svnurl" "$Rappture::svnurl"
772	lappend info "installdir" "$Rappture::installdir"
773	lappend info "hub" [exec hostname]
774	lappend info "client" "vtkheightmapviewer"
775	lappend info "user" $user
776	lappend info "session" $session
777	SendCmd "clientinfo [list $info]"
778	}
779	set w [winfo width $itk_component(view)]
780	set h [winfo height $itk_component(view)]
781	EventuallyResize $w $h
782	}
783	return $result
784	}
785
786	#
787	# isconnected --
788	#
789	# Indicates if we are currently connected to the visualization server.
790	#
791	itcl::body Rappture::VtkHeightmapViewer::isconnected {} {
792	return [VisViewer::IsConnected]
793	}
794
795	#
796	# disconnect --
797	#
798	itcl::body Rappture::VtkHeightmapViewer::disconnect {} {
799	Disconnect
800	set _reset 1
801	}
802
803	#
804	# Disconnect --
805	#
806	# Clients use this method to disconnect from the current rendering
807	# server.
808	#
809	itcl::body Rappture::VtkHeightmapViewer::Disconnect {} {
810	VisViewer::Disconnect
811
812	$_dispatcher cancel !rebuild
813	$_dispatcher cancel !resize
814	$_dispatcher cancel !rotate
815	$_dispatcher cancel !legend
816	# disconnected -- no more data sitting on server
817	array unset _datasets
818	array unset _data
819	array unset _colormaps
820	array unset _obj2datasets
821	global readyForNextFrame
822	set readyForNextFrame 1
823	}
824
825	# ----------------------------------------------------------------------
826	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
827	#
828	# Invoked automatically whenever the "image" command comes in from
829	# the rendering server. Indicates that binary image data with the
830	# specified <size> will follow.
831	# ----------------------------------------------------------------------
832	itcl::body Rappture::VtkHeightmapViewer::ReceiveImage { args } {
833	global readyForNextFrame
834	set readyForNextFrame 1
835	array set info {
836	-token "???"
837	-bytes 0
838	-type image
839	}
840	array set info $args
841	set bytes [ReceiveBytes $info(-bytes)]
842	if { $info(-type) == "image" } {
843	if 0 {
844	set f [open "last.ppm" "w"]
845	puts $f $bytes
846	close $f
847	}
848	$_image(plot) configure -data $bytes
849	set time [clock seconds]
850	set date [clock format $time]
851	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
852	if { $_start > 0 } {
853	set finish [clock clicks -milliseconds]
854	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
855	set _start 0
856	}
857	} elseif { $info(type) == "print" } {
858	set tag $this-print-$info(-token)
859	set _hardcopy($tag) $bytes
860	}
861	}
862
863	#
864	# ReceiveDataset --
865	#
866	itcl::body Rappture::VtkHeightmapViewer::ReceiveDataset { args } {
867	if { ![isconnected] } {
868	return
869	}
870	set option [lindex $args 0]
871	switch -- $option {
872	"scalar" {
873	set option [lindex $args 1]
874	switch -- $option {
875	"world" {
876	foreach { x y z value tag } [lrange $args 2 end] break
877	}
878	"pixel" {
879	foreach { x y value tag } [lrange $args 2 end] break
880	}
881	}
882	}
883	"vector" {
884	set option [lindex $args 1]
885	switch -- $option {
886	"world" {
887	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
888	}
889	"pixel" {
890	foreach { x y vx vy vz tag } [lrange $args 2 end] break
891	}
892	}
893	}
894	"names" {
895	foreach { name } [lindex $args 1] {
896	#puts stderr "Dataset: $name"
897	}
898	}
899	default {
900	error "unknown dataset option \"$option\" from server"
901	}
902	}
903	}
904
905	# ----------------------------------------------------------------------
906	# USAGE: Rebuild
907	#
908	# Called automatically whenever something changes that affects the
909	# data in the widget. Clears any existing data and rebuilds the
910	# widget to display new data.
911	# ----------------------------------------------------------------------
912	itcl::body Rappture::VtkHeightmapViewer::Rebuild {} {
913	set w [winfo width $itk_component(view)]
914	set h [winfo height $itk_component(view)]
915	if { $w < 2 \|\| $h < 2 } {
916	$_dispatcher event -idle !rebuild
917	return
918	}
919
920	# Turn on buffering of commands to the server. We don't want to
921	# be preempted by a server disconnect/reconnect (which automatically
922	# generates a new call to Rebuild).
923	StartBufferingCommands
924
925	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
926	set _width $w
927	set _height $h
928	$_arcball resize $w $h
929	DoResize
930	if { $_settings(-stretchtofit) } {
931	AdjustSetting -stretchtofit
932	}
933	}
934	if { $_reset } {
935	#
936	# Reset the camera and other view parameters
937	#
938	InitSettings -isheightmap -background
939
940	# Let's see how this goes. I think it's preferable to overloading the
941	# axis title with the exponent.
942	SendCmd "axis exp 0 0 0 1"
943
944	SendCmd "axis lrot z 90"
945	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
946	$_arcball quaternion $q
947	if {$_settings(-isheightmap) } {
948	if { $_view(ortho)} {
949	SendCmd "camera mode ortho"
950	} else {
951	SendCmd "camera mode persp"
952	}
953	DoRotate
954	SendCmd "camera reset"
955	}
956	PanCamera
957	StopBufferingCommands
958	SendCmd "imgflush"
959	StartBufferingCommands
960	}
961
962	set _first ""
963	# Start off with no datasets are visible.
964	SendCmd "dataset visible 0"
965	set scale [GetHeightmapScale]
966	foreach dataobj [get -objects] {
967	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
968	set _first $dataobj
969	}
970	set _obj2datasets($dataobj) ""
971	foreach comp [$dataobj components] {
972	set tag $dataobj-$comp
973	if { ![info exists _datasets($tag)] } {
974	set bytes [$dataobj vtkdata $comp]
975	if 0 {
976	set f [open /tmp/vtkheightmap.vtk "w"]
977	puts $f $bytes
978	close $f
979	}
980	set length [string length $bytes]
981	if { $_reportClientInfo } {
982	set info {}
983	lappend info "tool_id" [$dataobj hints toolId]
984	lappend info "tool_name" [$dataobj hints toolName]
985	lappend info "tool_version" [$dataobj hints toolRevision]
986	lappend info "tool_title" [$dataobj hints toolTitle]
987	lappend info "dataset_label" [$dataobj hints label]
988	lappend info "dataset_size" $length
989	lappend info "dataset_tag" $tag
990	SendCmd [list "clientinfo" $info]
991	}
992	SendCmd "dataset add $tag data follows $length"
993	append _outbuf $bytes
994	set _datasets($tag) 1
995	SetObjectStyle $dataobj $comp
996	}
997	lappend _obj2datasets($dataobj) $tag
998	if { [info exists _obj2ovride($dataobj-raise)] } {
999	# Setting dataset visible enables outline
1000	# and heightmap
1001	SendCmd "dataset visible 1 $tag"
1002	}
1003	if { ![info exists _comp2scale($tag)] \|\|
1004	$_comp2scale($tag) != $scale } {
1005	SendCmd "heightmap heightscale $scale $tag"
1006	set _comp2scale($tag) $scale
1007	}
1008	}
1009	}
1010	if { $_first != "" } {
1011	$itk_component(field) choices delete 0 end
1012	$itk_component(fieldmenu) delete 0 end
1013	array unset _fields
1014	set _curFldName ""
1015	foreach cname [$_first components] {
1016	foreach fname [$_first fieldnames $cname] {
1017	if { [info exists _fields($fname)] } {
1018	continue
1019	}
1020	foreach { label units components } \
1021	[$_first fieldinfo $fname] break
1022	$itk_component(field) choices insert end "$fname" "$label"
1023	$itk_component(fieldmenu) add radiobutton -label "$label" \
1024	-value $label -variable [itcl::scope _curFldLabel] \
1025	-selectcolor red \
1026	-activebackground $itk_option(-plotbackground) \
1027	-activeforeground $itk_option(-plotforeground) \
1028	-font "Arial 8" \
1029	-command [itcl::code $this Combo invoke]
1030	set _fields($fname) [list $label $units $components]
1031	if { $_curFldName == "" } {
1032	set _curFldName $fname
1033	set _curFldLabel $label
1034	}
1035	}
1036	}
1037	$itk_component(field) value $_curFldLabel
1038	}
1039	InitSettings -stretchtofit -outline
1040
1041	if { $_reset } {
1042	SendCmd "axis tickpos outside"
1043	foreach axis { x y z } {
1044	SendCmd "axis lformat $axis %g"
1045	}
1046
1047	foreach axis { x y z } {
1048	if { $axis == "z" } {
1049	set label [$_first hints label]
1050	} else {
1051	set label [$_first hints ${axis}label]
1052	}
1053	if { $label == "" } {
1054	if {$axis == "z"} {
1055	if { [string match "component*" $_curFldName] } {
1056	set label [string toupper $axis]
1057	} else {
1058	set label $_curFldLabel
1059	}
1060	} else {
1061	set label [string toupper $axis]
1062	}
1063	}
1064	# May be a space in the axis label.
1065	SendCmd [list axis name $axis $label]
1066
1067	if {$axis == "z" && [$_first hints ${axis}units] == ""} {
1068	set units [lindex $_fields($_curFldName) 1]
1069	} else {
1070	set units [$_first hints ${axis}units]
1071	}
1072	if { $units != "" } {
1073	# May be a space in the axis units.
1074	SendCmd [list axis units $axis $units]
1075	}
1076	}
1077	#
1078	# Reset the camera and other view parameters
1079	#
1080	ResetAxes
1081	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1082	$_arcball quaternion $q
1083	if {$_settings(-isheightmap) } {
1084	if { $_view(ortho)} {
1085	SendCmd "camera mode ortho"
1086	} else {
1087	SendCmd "camera mode persp"
1088	}
1089	DoRotate
1090	SendCmd "camera reset"
1091	}
1092	PanCamera
1093	InitSettings -xgrid -ygrid -zgrid \
1094	-axisvisible -axislabels -heightmapscale -field -isheightmap \
1095	-numisolines
1096	if { [array size _fields] < 2 } {
1097	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1098	}
1099	RequestLegend
1100	set _reset 0
1101	}
1102	global readyForNextFrame
1103	set readyForNextFrame 0; # Don't advance to the next frame
1104
1105	# Actually write the commands to the server socket. If it fails, we don't
1106	# care. We're finished here.
1107	blt::busy hold $itk_component(hull)
1108	StopBufferingCommands
1109	blt::busy release $itk_component(hull)
1110	}
1111
1112	# ----------------------------------------------------------------------
1113	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1114	#
1115	# Returns a list of server IDs for the current datasets being displayed. This
1116	# is normally a single ID, but it might be a list of IDs if the current data
1117	# object has multiple components.
1118	# ----------------------------------------------------------------------
1119	itcl::body Rappture::VtkHeightmapViewer::CurrentDatasets {args} {
1120	set flag [lindex $args 0]
1121	switch -- $flag {
1122	"-all" {
1123	if { [llength $args] > 1 } {
1124	error "CurrentDatasets: can't specify dataobj after \"-all\""
1125	}
1126	set dlist [get -objects]
1127	}
1128	"-visible" {
1129	if { [llength $args] > 1 } {
1130	set dlist {}
1131	set args [lrange $args 1 end]
1132	foreach dataobj $args {
1133	if { [info exists _obj2ovride($dataobj-raise)] } {
1134	lappend dlist $dataobj
1135	}
1136	}
1137	} else {
1138	set dlist [get -visible]
1139	}
1140	}
1141	default {
1142	set dlist $args
1143	}
1144	}
1145	set rlist ""
1146	foreach dataobj $dlist {
1147	foreach comp [$dataobj components] {
1148	set tag $dataobj-$comp
1149	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1150	lappend rlist $tag
1151	}
1152	}
1153	}
1154	return $rlist
1155	}
1156
1157	itcl::body Rappture::VtkHeightmapViewer::CameraReset {} {
1158	array set _view {
1159	qw 0.36
1160	qx 0.25
1161	qy 0.50
1162	qz 0.70
1163	zoom 1.0
1164	xpan 0
1165	ypan 0
1166	}
1167	if { $_first != "" } {
1168	set location [$_first hints camera]
1169	if { $location != "" } {
1170	array set _view $location
1171	}
1172	}
1173	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1174	$_arcball quaternion $q
1175	if {$_settings(-isheightmap) } {
1176	DoRotate
1177	}
1178	SendCmd "camera reset"
1179	}
1180
1181	# ----------------------------------------------------------------------
1182	# USAGE: Zoom in
1183	# USAGE: Zoom out
1184	# USAGE: Zoom reset
1185	#
1186	# Called automatically when the user clicks on one of the zoom
1187	# controls for this widget. Changes the zoom for the current view.
1188	# ----------------------------------------------------------------------
1189	itcl::body Rappture::VtkHeightmapViewer::Zoom {option} {
1190	switch -- $option {
1191	"in" {
1192	set _view(zoom) [expr {$_view(zoom)*1.25}]
1193	SendCmd "camera zoom $_view(zoom)"
1194	}
1195	"out" {
1196	set _view(zoom) [expr {$_view(zoom)*0.8}]
1197	SendCmd "camera zoom $_view(zoom)"
1198	}
1199	"reset" {
1200	array set _view {
1201	zoom 1.0
1202	xpan 0
1203	ypan 0
1204	}
1205	SendCmd "camera reset"
1206	}
1207	}
1208	}
1209
1210	itcl::body Rappture::VtkHeightmapViewer::PanCamera {} {
1211	set x $_view(xpan)
1212	set y $_view(ypan)
1213	SendCmd "camera pan $x $y"
1214	}
1215
1216
1217	# ----------------------------------------------------------------------
1218	# USAGE: Rotate click <x> <y>
1219	# USAGE: Rotate drag <x> <y>
1220	# USAGE: Rotate release <x> <y>
1221	#
1222	# Called automatically when the user clicks/drags/releases in the
1223	# plot area. Moves the plot according to the user's actions.
1224	# ----------------------------------------------------------------------
1225	itcl::body Rappture::VtkHeightmapViewer::Rotate {option x y} {
1226	switch -- $option {
1227	"click" {
1228	$itk_component(view) configure -cursor fleur
1229	set _click(x) $x
1230	set _click(y) $y
1231	}
1232	"drag" {
1233	if {[array size _click] == 0} {
1234	Rotate click $x $y
1235	} else {
1236	set w [winfo width $itk_component(view)]
1237	set h [winfo height $itk_component(view)]
1238	if {$w <= 0 \|\| $h <= 0} {
1239	return
1240	}
1241
1242	if {[catch {
1243	# this fails sometimes for no apparent reason
1244	set dx [expr {double($x-$_click(x))/$w}]
1245	set dy [expr {double($y-$_click(y))/$h}]
1246	}]} {
1247	return
1248	}
1249	if { $dx == 0 && $dy == 0 } {
1250	return
1251	}
1252	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1253	EventuallyRotate $q
1254	set _click(x) $x
1255	set _click(y) $y
1256	}
1257	}
1258	"release" {
1259	Rotate drag $x $y
1260	$itk_component(view) configure -cursor ""
1261	catch {unset _click}
1262	}
1263	default {
1264	error "bad option \"$option\": should be click, drag, release"
1265	}
1266	}
1267	}
1268
1269	itcl::body Rappture::VtkHeightmapViewer::Pick {x y} {
1270	foreach tag [CurrentDatasets -visible] {
1271	SendCmd "dataset getscalar pixel $x $y $tag"
1272	}
1273	}
1274
1275	# ----------------------------------------------------------------------
1276	# USAGE: $this Pan click x y
1277	# $this Pan drag x y
1278	# $this Pan release x y
1279	#
1280	# Called automatically when the user clicks on one of the zoom
1281	# controls for this widget. Changes the zoom for the current view.
1282	# ----------------------------------------------------------------------
1283	itcl::body Rappture::VtkHeightmapViewer::Pan {option x y} {
1284	switch -- $option {
1285	"set" {
1286	set w [winfo width $itk_component(view)]
1287	set h [winfo height $itk_component(view)]
1288	set x [expr $x / double($w)]
1289	set y [expr $y / double($h)]
1290	set _view(xpan) [expr $_view(xpan) + $x]
1291	set _view(ypan) [expr $_view(ypan) + $y]
1292	PanCamera
1293	return
1294	}
1295	"click" {
1296	set _click(x) $x
1297	set _click(y) $y
1298	$itk_component(view) configure -cursor hand1
1299	}
1300	"drag" {
1301	if { ![info exists _click(x)] } {
1302	set _click(x) $x
1303	}
1304	if { ![info exists _click(y)] } {
1305	set _click(y) $y
1306	}
1307	set w [winfo width $itk_component(view)]
1308	set h [winfo height $itk_component(view)]
1309	set dx [expr ($_click(x) - $x)/double($w)]
1310	set dy [expr ($_click(y) - $y)/double($h)]
1311	set _click(x) $x
1312	set _click(y) $y
1313	set _view(xpan) [expr $_view(xpan) - $dx]
1314	set _view(ypan) [expr $_view(ypan) - $dy]
1315	PanCamera
1316	}
1317	"release" {
1318	Pan drag $x $y
1319	$itk_component(view) configure -cursor ""
1320	}
1321	default {
1322	error "unknown option \"$option\": should set, click, drag, or release"
1323	}
1324	}
1325	}
1326
1327	# ----------------------------------------------------------------------
1328	# USAGE: InitSettings <what> ?<value>?
1329	#
1330	# Used internally to update rendering settings whenever parameters
1331	# change in the popup settings panel. Sends the new settings off
1332	# to the back end.
1333	# ----------------------------------------------------------------------
1334	itcl::body Rappture::VtkHeightmapViewer::InitSettings { args } {
1335	foreach spec $args {
1336	if { [info exists _settings($_first${spec})] } {
1337	# Reset global setting with dataobj specific setting
1338	set _settings($spec) $_settings($_first${spec})
1339	}
1340	AdjustSetting $spec
1341	}
1342	}
1343
1344	#
1345	# AdjustSetting --
1346	#
1347	# Changes/updates a specific setting in the widget. There are
1348	# usually user-setable option. Commands are sent to the render
1349	# server.
1350	#
1351	itcl::body Rappture::VtkHeightmapViewer::AdjustSetting {what {value ""}} {
1352	if { $_beforeConnect } {
1353	return
1354	}
1355	switch -- $what {
1356	"-axisflymode" {
1357	set mode [$itk_component(axisflymode) value]
1358	set mode [$itk_component(axisflymode) translate $mode]
1359	set _settings($what) $mode
1360	SendCmd "axis flymode $mode"
1361	}
1362	"-axislabels" {
1363	set bool $_settings($what)
1364	SendCmd "axis labels all $bool"
1365	}
1366	"-axisminorticks" {
1367	set bool $_settings($what)
1368	foreach axis { x y z } {
1369	SendCmd "axis minticks ${axis} $bool"
1370	}
1371	}
1372	"-axisvisible" {
1373	set bool $_settings($what)
1374	SendCmd "axis visible all $bool"
1375	}
1376	"-xgrid" - "-ygrid" - "-zgrid" {
1377	set axis [string tolower [string range $what 1 1]]
1378	set bool $_settings($what)
1379	SendCmd "axis grid $axis $bool"
1380	}
1381	"-background" {
1382	set bg [$itk_component(background) value]
1383	array set fgcolors {
1384	"black" "white"
1385	"white" "black"
1386	"grey" "black"
1387	}
1388	set fg $fgcolors($bg)
1389	configure -plotbackground $bg -plotforeground $fg
1390	$itk_component(view) delete "legend"
1391	SendCmd "screen bgcolor [Color2RGB $bg]"
1392	SendCmd "outline color [Color2RGB $fg]"
1393	SendCmd "axis color all [Color2RGB $fg]"
1394	DrawLegend
1395	}
1396	"-colormap" {
1397	set _changed($what) 1
1398	StartBufferingCommands
1399	set color [$itk_component(colormap) value]
1400	set _settings($what) $color
1401	if { $color == "none" } {
1402	if { $_settings(-colormapvisible) } {
1403	SendCmd "heightmap surface 0"
1404	set _settings(-colormapvisible) 0
1405	}
1406	} else {
1407	if { !$_settings(-colormapvisible) } {
1408	SendCmd "heightmap surface 1"
1409	set _settings(-colormapvisible) 1
1410	}
1411	SetCurrentColormap $color
1412	if {$_settings(-colormapdiscrete)} {
1413	set numColors [expr $_settings(-numisolines) + 1]
1414	SendCmd "colormap res $numColors $color"
1415	}
1416	}
1417	StopBufferingCommands
1418	EventuallyRequestLegend
1419	}
1420	"-colormapvisible" {
1421	set bool $_settings($what)
1422	SendCmd "heightmap surface $bool"
1423	}
1424	"-colormapdiscrete" {
1425	set bool $_settings($what)
1426	set numColors [expr $_settings(-numisolines) + 1]
1427	StartBufferingCommands
1428	if {$bool} {
1429	SendCmd "colormap res $numColors"
1430	# Discrete colormap requires preinterp on
1431	SendCmd "heightmap preinterp on"
1432	} else {
1433	SendCmd "colormap res default"
1434	# FIXME: add setting for preinterp (default on)
1435	SendCmd "heightmap preinterp on"
1436	}
1437	StopBufferingCommands
1438	EventuallyRequestLegend
1439	}
1440	"-edges" {
1441	set bool $_settings($what)
1442	SendCmd "heightmap edges $bool"
1443	}
1444	"-field" {
1445	set label [$itk_component(field) value]
1446	set fname [$itk_component(field) translate $label]
1447	set _settings($what) $fname
1448	if { [info exists _fields($fname)] } {
1449	foreach { label units components } $_fields($fname) break
1450	if { $components > 1 } {
1451	set _colorMode vmag
1452	} else {
1453	set _colorMode scalar
1454	}
1455	set _curFldName $fname
1456	set _curFldLabel $label
1457	} else {
1458	puts stderr "unknown field \"$fname\""
1459	return
1460	}
1461	set label [$_first hints label]
1462	if { $label == "" } {
1463	if { [string match "component*" $_curFldName] } {
1464	set label Z
1465	} else {
1466	set label $_curFldLabel
1467	}
1468	}
1469	# May be a space in the axis label.
1470	SendCmd [list axis name z $label]
1471
1472	if { [$_first hints zunits] == "" } {
1473	set units [lindex $_fields($_curFldName) 1]
1474	} else {
1475	set units [$_first hints zunits]
1476	}
1477	if { $units != "" } {
1478	# May be a space in the axis units.
1479	SendCmd [list axis units z $units]
1480	}
1481	# Get the new limits because the field changed.
1482	ResetAxes
1483	SendCmd "dataset scalar $_curFldName"
1484	SendCmd "heightmap colormode scalar $_curFldName"
1485	Zoom reset
1486	UpdateContourList
1487	DrawLegend
1488	}
1489	"-heightmapscale" {
1490	if { $_settings(-isheightmap) } {
1491	set scale [GetHeightmapScale]
1492	# Have to set the datasets individually because we are
1493	# tracking them in _comp2scale.
1494	foreach dataset [CurrentDatasets -all] {
1495	SendCmd "heightmap heightscale $scale $dataset"
1496	set _comp2scale($dataset) $scale
1497	}
1498	ResetAxes
1499	}
1500	}
1501	"-isheightmap" {
1502	set bool $_settings($what)
1503	set c $itk_component(view)
1504	StartBufferingCommands
1505	# Fix heightmap scale: 0 for contours, 1 for heightmaps.
1506	if { $bool } {
1507	set _settings(-heightmapscale) 50
1508	set _settings(-opacity) $_settings(-saveopacity)
1509	set _settings(-lighting) $_settings(-savelighting)
1510	set _settings(-outline) 0
1511	} else {
1512	set _settings(-heightmapscale) 0
1513	set _settings(-lighting) 0
1514	set _settings(-opacity) 100
1515	set _settings(-outline) $_settings(-saveoutline)
1516	}
1517	InitSettings -lighting -opacity -outline
1518	set scale [GetHeightmapScale]
1519	# Have to set the datasets individually because we are
1520	# tracking them in _comp2scale.
1521	foreach dataset [CurrentDatasets -all] {
1522	SendCmd "heightmap heightscale $scale $dataset"
1523	set _comp2scale($dataset) $scale
1524	}
1525	if { $bool } {
1526	$itk_component(lighting) configure -state normal
1527	$itk_component(opacity) configure -state normal
1528	$itk_component(scale) configure -state normal
1529	$itk_component(opacity_l) configure -state normal
1530	$itk_component(scale_l) configure -state normal
1531	$itk_component(outline) configure -state disabled
1532	if {$_view(ortho)} {
1533	SendCmd "camera mode ortho"
1534	} else {
1535	SendCmd "camera mode persp"
1536	}
1537	} else {
1538	$itk_component(lighting) configure -state disabled
1539	$itk_component(opacity) configure -state disabled
1540	$itk_component(scale) configure -state disabled
1541	$itk_component(opacity_l) configure -state disabled
1542	$itk_component(scale_l) configure -state disabled
1543	$itk_component(outline) configure -state normal
1544	SendCmd "camera mode image"
1545	}
1546	if {$_settings(-stretchtofit)} {
1547	if {$scale == 0} {
1548	SendCmd "camera aspect window"
1549	} else {
1550	SendCmd "camera aspect square"
1551	}
1552	}
1553	ResetAxes
1554	if { $bool } {
1555	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
1556	$_arcball quaternion $q
1557	SendCmd "camera orient $q"
1558	} else {
1559	bind $c <ButtonPress-1> {}
1560	bind $c <B1-Motion> {}
1561	bind $c <ButtonRelease-1> {}
1562	}
1563	Zoom reset
1564	# Fix the mouse bindings for rotation/panning and the
1565	# camera mode. Ideally we'd create a bindtag for these.
1566	if { $bool } {
1567	# Bindings for rotation via mouse
1568	bind $c <ButtonPress-1> \
1569	[itcl::code $this Rotate click %x %y]
1570	bind $c <B1-Motion> \
1571	[itcl::code $this Rotate drag %x %y]
1572	bind $c <ButtonRelease-1> \
1573	[itcl::code $this Rotate release %x %y]
1574	}
1575	StopBufferingCommands
1576	}
1577	"-isolinecolor" {
1578	set color [$itk_component(isolinecolor) value]
1579	if { $color == "none" } {
1580	if { $_settings(-isolinesvisible) } {
1581	SendCmd "heightmap isolines 0"
1582	set _settings(-isolinesvisible) 0
1583	}
1584	} else {
1585	if { !$_settings(-isolinesvisible) } {
1586	SendCmd "heightmap isolines 1"
1587	set _settings(-isolinesvisible) 1
1588	}
1589	SendCmd "heightmap isolinecolor [Color2RGB $color]"
1590	}
1591	DrawLegend
1592	}
1593	"-isolinesvisible" {
1594	set bool $_settings($what)
1595	SendCmd "heightmap isolines $bool"
1596	DrawLegend
1597	}
1598	"-legendvisible" {
1599	if { !$_settings($what) } {
1600	$itk_component(view) delete legend
1601	}
1602	DrawLegend
1603	}
1604	"-lighting" {
1605	if { $_settings(-isheightmap) } {
1606	set _settings(-savelighting) $_settings($what)
1607	set bool $_settings($what)
1608	SendCmd "heightmap lighting $bool"
1609	} else {
1610	SendCmd "heightmap lighting 0"
1611	}
1612	}
1613	"-numisolines" {
1614	set _settings($what) [$itk_component(numisolines) value]
1615	set _currentNumIsolines $_settings($what)
1616	UpdateContourList
1617	set _changed($what) 1
1618	SendCmd "heightmap contourlist [list $_contourList]"
1619	if {$_settings(-colormapdiscrete)} {
1620	set numColors [expr $_settings($what) + 1]
1621	SendCmd "colormap res $numColors"
1622	EventuallyRequestLegend
1623	} else {
1624	DrawLegend
1625	}
1626	}
1627	"-opacity" {
1628	set _changed($what) 1
1629	set val [expr $_settings($what) * 0.01]
1630	if { $_settings(-isheightmap) } {
1631	set _settings(-saveopacity) $_settings($what)
1632	SendCmd "heightmap opacity $val"
1633	} else {
1634	SendCmd "heightmap opacity 1.0"
1635	}
1636	}
1637	"-outline" {
1638	if { $_settings(-isheightmap) } {
1639	SendCmd "outline visible 0"
1640	} else {
1641	set _settings(-saveoutline) $_settings($what)
1642	set bool $_settings($what)
1643	SendCmd "outline visible $bool"
1644	}
1645	}
1646	"-stretchtofit" {
1647	set bool $_settings($what)
1648	if { $bool } {
1649	set heightScale [GetHeightmapScale]
1650	if {$heightScale == 0} {
1651	SendCmd "camera aspect window"
1652	} else {
1653	SendCmd "camera aspect square"
1654	}
1655	} else {
1656	SendCmd "camera aspect native"
1657	}
1658	Zoom reset
1659	}
1660	"-wireframe" {
1661	set bool $_settings($what)
1662	SendCmd "heightmap wireframe $bool"
1663	}
1664	default {
1665	error "don't know how to fix $what"
1666	}
1667	}
1668	}
1669
1670	#
1671	# RequestLegend --
1672	#
1673	# Request a new legend from the server. The size of the legend
1674	# is determined from the height of the canvas.
1675	#
1676	# This should be called when
1677	# 1. A new current colormap is set.
1678	# 2. Window is resized.
1679	# 3. The limits of the data have changed. (Just need a redraw).
1680	# 4. Number of isolines have changed. (Just need a redraw).
1681	# 5. Legend becomes visible (Just need a redraw).
1682	#
1683	itcl::body Rappture::VtkHeightmapViewer::RequestLegend {} {
1684	set _legendPending 0
1685	set font "Arial 8"
1686	set w 12
1687	set lineht [font metrics $font -linespace]
1688	# color ramp height = (canvas height) - (min and max value lines) - 2
1689	set h [expr {$_height - 2 * ($lineht + 2)}]
1690	set _legendHeight $h
1691
1692	set fname $_curFldName
1693	if { [string match "component*" $fname] } {
1694	set title ""
1695	} else {
1696	if { [info exists _fields($fname)] } {
1697	foreach { title units } $_fields($fname) break
1698	if { $units != "" } {
1699	set title [format "%s (%s)" $title $units]
1700	}
1701	} else {
1702	set title $fname
1703	}
1704	}
1705	# If there's a title too, substract one more line
1706	if { $title != "" } {
1707	incr h -$lineht
1708	}
1709	if { $h < 1 } {
1710	return
1711	}
1712	# Set the legend on the first heightmap dataset.
1713	if { $_currentColormap != "" } {
1714	set cmap $_currentColormap
1715	SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1716	}
1717	}
1718
1719	#
1720	# ResetAxes --
1721	#
1722	# Set axis z bounds and range
1723	#
1724	itcl::body Rappture::VtkHeightmapViewer::ResetAxes {} {
1725	if { ![info exists _limits($_curFldName)]} {
1726	SendCmd "dataset maprange all"
1727	SendCmd "axis autorange z on"
1728	SendCmd "axis autobounds z on"
1729	return
1730	}
1731	foreach { xmin xmax } $_limits(x) break
1732	foreach { ymin ymax } $_limits(y) break
1733	foreach { vmin vmax } $_limits($_curFldName) break
1734
1735	global tcl_precision
1736	set tcl_precision 17
1737	set xr [expr $xmax - $xmin]
1738	set yr [expr $ymax - $ymin]
1739	set vr [expr $vmax - $vmin]
1740	set r [expr ($yr > $xr) ? $yr : $xr]
1741	if { $vr < 1.0e-17 } {
1742	set dataScale 1.0
1743	} else {
1744	set dataScale [expr $r / $vr]
1745	}
1746	set heightScale [GetHeightmapScale]
1747	set bmin [expr $heightScale * $dataScale * $vmin]
1748	set bmax [expr $heightScale * $dataScale * $vmax]
1749	if {$heightScale > 0} {
1750	set zpos [expr - $bmin]
1751	SendCmd "heightmap pos 0 0 $zpos"
1752	} else {
1753	SendCmd "heightmap pos 0 0 0"
1754	}
1755	set bmax [expr $bmax - $bmin]
1756	set bmin 0
1757	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1758	SendCmd "axis bounds z $bmin $bmax"
1759	SendCmd "axis range z $_limits($_curFldName)"
1760	}
1761
1762	#
1763	# SetCurrentColormap --
1764	#
1765	itcl::body Rappture::VtkHeightmapViewer::SetCurrentColormap { name } {
1766	# Keep track of the colormaps that we build.
1767	if { $name != "none" && ![info exists _colormaps($name)] } {
1768	BuildColormap $name
1769	set _colormaps($name) 1
1770	}
1771	set _currentColormap $name
1772	SendCmd "heightmap colormap $_currentColormap"
1773	}
1774
1775
1776	#
1777	# BuildColormap --
1778	#
1779	# Build the designated colormap on the server.
1780	#
1781	itcl::body Rappture::VtkHeightmapViewer::BuildColormap { name } {
1782	set cmap [ColorsToColormap $name]
1783	if { [llength $cmap] == 0 } {
1784	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1785	}
1786	set wmap "0.0 1.0 1.0 1.0"
1787	SendCmd "colormap add $name { $cmap } { $wmap }"
1788	}
1789
1790	# ----------------------------------------------------------------------
1791	# CONFIGURATION OPTION: -mode
1792	# ----------------------------------------------------------------------
1793	itcl::configbody Rappture::VtkHeightmapViewer::mode {
1794	switch -- $itk_option(-mode) {
1795	"heightmap" {
1796	set _settings(-isheightmap) 1
1797	}
1798	"contour" {
1799	set _settings(-isheightmap) 0
1800	}
1801	default {
1802	error "unknown mode settings \"$itk_option(-mode)\""
1803	}
1804	}
1805	if { !$_reset } {
1806	AdjustSetting -isheightmap
1807	}
1808	}
1809
1810	# ----------------------------------------------------------------------
1811	# CONFIGURATION OPTION: -plotbackground
1812	# ----------------------------------------------------------------------
1813	itcl::configbody Rappture::VtkHeightmapViewer::plotbackground {
1814	if { [isconnected] } {
1815	set rgb [Color2RGB $itk_option(-plotbackground)]
1816	if { !$_reset } {
1817	SendCmd "screen bgcolor $rgb"
1818	}
1819	$itk_component(view) configure -background $itk_option(-plotbackground)
1820	}
1821	}
1822
1823	# ----------------------------------------------------------------------
1824	# CONFIGURATION OPTION: -plotforeground
1825	# ----------------------------------------------------------------------
1826	itcl::configbody Rappture::VtkHeightmapViewer::plotforeground {
1827	if { [isconnected] } {
1828	set rgb [Color2RGB $itk_option(-plotforeground)]
1829	if { !$_reset } {
1830	SendCmd "outline color $rgb"
1831	SendCmd "axis color all $rgb"
1832	}
1833	}
1834	}
1835
1836	itcl::body Rappture::VtkHeightmapViewer::limits3 { dataobj } {
1837	lappend limits x [$dataobj limits x]
1838	lappend limits y [$dataobj limits y]
1839	if { [catch { $dataobj limits $_curFldName } vlim] != 0 } {
1840	set vlim [$dataobj limits v]
1841	}
1842	lappend limits v $vlim
1843	return $limits
1844	}
1845
1846	itcl::body Rappture::VtkHeightmapViewer::BuildContourTab {} {
1847
1848	set fg [option get $itk_component(hull) font Font]
1849	#set bfg [option get $itk_component(hull) boldFont Font]
1850
1851	set inner [$itk_component(main) insert end \
1852	-title "Contour/Surface Settings" \
1853	-icon [Rappture::icon contour2]]
1854	$inner configure -borderwidth 4
1855
1856	checkbutton $inner.legend \
1857	-text "Legend" \
1858	-variable [itcl::scope _settings(-legendvisible)] \
1859	-command [itcl::code $this AdjustSetting -legendvisible] \
1860	-font "Arial 9"
1861
1862	checkbutton $inner.wireframe \
1863	-text "Wireframe" \
1864	-variable [itcl::scope _settings(-wireframe)] \
1865	-command [itcl::code $this AdjustSetting -wireframe] \
1866	-font "Arial 9"
1867
1868	itk_component add lighting {
1869	checkbutton $inner.lighting \
1870	-text "Enable Lighting" \
1871	-variable [itcl::scope _settings(-lighting)] \
1872	-command [itcl::code $this AdjustSetting -lighting] \
1873	-font "Arial 9"
1874	} {
1875	ignore -font
1876	}
1877	checkbutton $inner.edges \
1878	-text "Edges" \
1879	-variable [itcl::scope _settings(-edges)] \
1880	-command [itcl::code $this AdjustSetting -edges] \
1881	-font "Arial 9"
1882
1883	itk_component add outline {
1884	checkbutton $inner.outline \
1885	-text "Outline" \
1886	-variable [itcl::scope _settings(-outline)] \
1887	-command [itcl::code $this AdjustSetting -outline] \
1888	-font "Arial 9"
1889	} {
1890	ignore -font
1891	}
1892	checkbutton $inner.stretch \
1893	-text "Stretch to fit" \
1894	-variable [itcl::scope _settings(-stretchtofit)] \
1895	-command [itcl::code $this AdjustSetting -stretchtofit] \
1896	-font "Arial 9"
1897
1898	checkbutton $inner.isolines \
1899	-text "Isolines" \
1900	-variable [itcl::scope _settings(-isolinesvisible)] \
1901	-command [itcl::code $this AdjustSetting -isolinesvisible] \
1902	-font "Arial 9"
1903
1904	checkbutton $inner.colormapDiscrete \
1905	-text "Discrete Colormap" \
1906	-variable [itcl::scope _settings(-colormapdiscrete)] \
1907	-command [itcl::code $this AdjustSetting -colormapdiscrete] \
1908	-font "Arial 9"
1909
1910	itk_component add field_l {
1911	label $inner.field_l -text "Field" -font "Arial 9"
1912	} {
1913	ignore -font
1914	}
1915	itk_component add field {
1916	Rappture::Combobox $inner.field -width 10 -editable no
1917	}
1918	bind $inner.field <<Value>> \
1919	[itcl::code $this AdjustSetting -field]
1920
1921	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1922	itk_component add colormap {
1923	Rappture::Combobox $inner.colormap -width 10 -editable no
1924	}
1925	$inner.colormap choices insert end [GetColormapList -includeNone]
1926	$itk_component(colormap) value $_settings(-colormap)
1927	bind $inner.colormap <<Value>> \
1928	[itcl::code $this AdjustSetting -colormap]
1929
1930	label $inner.isolinecolor_l -text "Isolines Color" -font "Arial 9"
1931	itk_component add isolinecolor {
1932	Rappture::Combobox $inner.isolinecolor -width 10 -editable no
1933	}
1934	$inner.isolinecolor choices insert end \
1935	"black" "black" \
1936	"blue" "blue" \
1937	"cyan" "cyan" \
1938	"green" "green" \
1939	"grey" "grey" \
1940	"magenta" "magenta" \
1941	"orange" "orange" \
1942	"red" "red" \
1943	"white" "white" \
1944	"none" "none"
1945
1946	$itk_component(isolinecolor) value $_settings(-isolinecolor)
1947	bind $inner.isolinecolor <<Value>> \
1948	[itcl::code $this AdjustSetting -isolinecolor]
1949
1950	label $inner.background_l -text "Background Color" -font "Arial 9"
1951	itk_component add background {
1952	Rappture::Combobox $inner.background -width 10 -editable no
1953	}
1954	$inner.background choices insert end \
1955	"black" "black" \
1956	"white" "white" \
1957	"grey" "grey"
1958
1959	$itk_component(background) value "white"
1960	bind $inner.background <<Value>> \
1961	[itcl::code $this AdjustSetting -background]
1962
1963	itk_component add opacity_l {
1964	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1965	} {
1966	ignore -font
1967	}
1968	itk_component add opacity {
1969	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1970	-variable [itcl::scope _settings(-opacity)] \
1971	-showvalue off \
1972	-command [itcl::code $this AdjustSetting -opacity]
1973	}
1974	itk_component add scale_l {
1975	label $inner.scale_l -text "Scale" -font "Arial 9"
1976	} {
1977	ignore -font
1978	}
1979	itk_component add scale {
1980	::scale $inner.scale -from 0 -to 100 -orient horizontal \
1981	-variable [itcl::scope _settings(-heightmapscale)] \
1982	-showvalue off \
1983	-command [itcl::code $this AdjustSetting -heightmapscale]
1984	}
1985	label $inner.numisolines_l -text "Number of Isolines" -font "Arial 9"
1986	itk_component add numisolines {
1987	Rappture::Spinint $inner.numisolines \
1988	-min 0 -max 50 -font "arial 9"
1989	}
1990	$itk_component(numisolines) value $_settings(-numisolines)
1991	bind $itk_component(numisolines) <<Value>> \
1992	[itcl::code $this AdjustSetting -numisolines]
1993
1994	frame $inner.separator1 -height 2 -relief sunken -bd 1
1995	frame $inner.separator2 -height 2 -relief sunken -bd 1
1996
1997	blt::table $inner \
1998	0,0 $inner.field_l -anchor w -pady 2 \
1999	0,1 $inner.field -anchor w -pady 2 -fill x \
2000	1,0 $inner.colormap_l -anchor w -pady 2 \
2001	1,1 $inner.colormap -anchor w -pady 2 -fill x \
2002	2,0 $inner.isolinecolor_l -anchor w -pady 2 \
2003	2,1 $inner.isolinecolor -anchor w -pady 2 -fill x \
2004	3,0 $inner.background_l -anchor w -pady 2 \
2005	3,1 $inner.background -anchor w -pady 2 -fill x \
2006	4,0 $inner.numisolines_l -anchor w -pady 2 \
2007	4,1 $inner.numisolines -anchor w -pady 2 \
2008	5,0 $inner.stretch -anchor w -pady 2 -cspan 2 \
2009	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
2010	7,0 $inner.legend -anchor w -pady 2 -cspan 2 \
2011	8,0 $inner.colormapDiscrete -anchor w -pady 2 -cspan 2 \
2012	9,0 $inner.wireframe -anchor w -pady 2 -cspan 2\
2013	10,0 $inner.isolines -anchor w -pady 2 -cspan 2 \
2014	11,0 $inner.separator1 -padx 2 -fill x -cspan 2 \
2015	12,0 $inner.outline -anchor w -pady 2 -cspan 2 \
2016	13,0 $inner.separator2 -padx 2 -fill x -cspan 2 \
2017	14,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
2018	15,0 $inner.opacity_l -anchor w -pady 2 \
2019	15,1 $inner.opacity -fill x -pady 2 \
2020	16,0 $inner.scale_l -anchor w -pady 2 -cspan 2 \
2021	16,1 $inner.scale -fill x -pady 2 -cspan 2 \
2022
2023	blt::table configure $inner r* c* -resize none
2024	blt::table configure $inner r17 c1 -resize expand
2025	}
2026
2027	itcl::body Rappture::VtkHeightmapViewer::BuildAxisTab {} {
2028
2029	set fg [option get $itk_component(hull) font Font]
2030	#set bfg [option get $itk_component(hull) boldFont Font]
2031
2032	set inner [$itk_component(main) insert end \
2033	-title "Axis Settings" \
2034	-icon [Rappture::icon axis2]]
2035	$inner configure -borderwidth 4
2036
2037	checkbutton $inner.visible \
2038	-text "Axes" \
2039	-variable [itcl::scope _settings(-axisvisible)] \
2040	-command [itcl::code $this AdjustSetting -axisvisible] \
2041	-font "Arial 9"
2042	checkbutton $inner.labels \
2043	-text "Axis Labels" \
2044	-variable [itcl::scope _settings(-axislabels)] \
2045	-command [itcl::code $this AdjustSetting -axislabels] \
2046	-font "Arial 9"
2047	label $inner.grid_l -text "Grid" -font "Arial 9"
2048	checkbutton $inner.xgrid \
2049	-text "X" \
2050	-variable [itcl::scope _settings(-xgrid)] \
2051	-command [itcl::code $this AdjustSetting -xgrid] \
2052	-font "Arial 9"
2053	checkbutton $inner.ygrid \
2054	-text "Y" \
2055	-variable [itcl::scope _settings(-ygrid)] \
2056	-command [itcl::code $this AdjustSetting -ygrid] \
2057	-font "Arial 9"
2058	checkbutton $inner.zgrid \
2059	-text "Z" \
2060	-variable [itcl::scope _settings(-zgrid)] \
2061	-command [itcl::code $this AdjustSetting -zgrid] \
2062	-font "Arial 9"
2063	checkbutton $inner.minorticks \
2064	-text "Minor Ticks" \
2065	-variable [itcl::scope _settings(-axisminorticks)] \
2066	-command [itcl::code $this AdjustSetting -axisminorticks] \
2067	-font "Arial 9"
2068
2069
2070	label $inner.mode_l -text "Mode" -font "Arial 9"
2071
2072	itk_component add axisflymode {
2073	Rappture::Combobox $inner.mode -width 10 -editable no
2074	}
2075	$inner.mode choices insert end \
2076	"static_triad" "static" \
2077	"closest_triad" "closest" \
2078	"furthest_triad" "farthest" \
2079	"outer_edges" "outer"
2080	$itk_component(axisflymode) value $_settings(-axisflymode)
2081	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axisflymode]
2082
2083	blt::table $inner \
2084	0,0 $inner.visible -anchor w -cspan 4 \
2085	1,0 $inner.labels -anchor w -cspan 4 \
2086	2,0 $inner.minorticks -anchor w -cspan 4 \
2087	4,0 $inner.grid_l -anchor w \
2088	4,1 $inner.xgrid -anchor w \
2089	4,2 $inner.ygrid -anchor w \
2090	4,3 $inner.zgrid -anchor w \
2091	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
2092	5,1 $inner.mode -fill x -cspan 3
2093
2094	blt::table configure $inner r* c* -resize none
2095	blt::table configure $inner r7 c6 -resize expand
2096	blt::table configure $inner r3 -height 0.125i
2097	}
2098
2099
2100	itcl::body Rappture::VtkHeightmapViewer::BuildCameraTab {} {
2101	set inner [$itk_component(main) insert end \
2102	-title "Camera Settings" \
2103	-icon [Rappture::icon camera]]
2104	$inner configure -borderwidth 4
2105
2106	label $inner.view_l -text "view" -font "Arial 9"
2107	set f [frame $inner.view]
2108	foreach side { front back left right top bottom } {
2109	button $f.$side -image [Rappture::icon view$side] \
2110	-command [itcl::code $this SetOrientation $side]
2111	Rappture::Tooltip::for $f.$side "Change the view to $side"
2112	pack $f.$side -side left
2113	}
2114
2115	blt::table $inner \
2116	0,0 $inner.view_l -anchor e -pady 2 \
2117	0,1 $inner.view -anchor w -pady 2
2118
2119	set labels { qx qy qz qw xpan ypan zoom }
2120	set row 1
2121	foreach tag $labels {
2122	label $inner.${tag}label -text $tag -font "Arial 9"
2123	entry $inner.${tag} -font "Arial 9" -bg white \
2124	-textvariable [itcl::scope _view($tag)]
2125	bind $inner.${tag} <Return> \
2126	[itcl::code $this camera set ${tag}]
2127	bind $inner.${tag} <KP_Enter> \
2128	[itcl::code $this camera set ${tag}]
2129	blt::table $inner \
2130	$row,0 $inner.${tag}label -anchor e -pady 2 \
2131	$row,1 $inner.${tag} -anchor w -pady 2
2132	blt::table configure $inner r$row -resize none
2133	incr row
2134	}
2135	checkbutton $inner.ortho \
2136	-text "Orthographic Projection" \
2137	-variable [itcl::scope _view(ortho)] \
2138	-command [itcl::code $this camera set ortho] \
2139	-font "Arial 9"
2140	blt::table $inner \
2141	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2142	blt::table configure $inner r$row -resize none
2143	incr row
2144
2145	blt::table configure $inner c* r* -resize none
2146	blt::table configure $inner c2 -resize expand
2147	blt::table configure $inner r$row -resize expand
2148	}
2149
2150	#
2151	# camera --
2152	#
2153	itcl::body Rappture::VtkHeightmapViewer::camera {option args} {
2154	switch -- $option {
2155	"show" {
2156	puts [array get _view]
2157	}
2158	"set" {
2159	set who [lindex $args 0]
2160	set x $_view($who)
2161	set code [catch { string is double $x } result]
2162	if { $code != 0 \|\| !$result } {
2163	return
2164	}
2165	switch -- $who {
2166	"ortho" {
2167	if {$_view(ortho)} {
2168	SendCmd "camera mode ortho"
2169	} else {
2170	SendCmd "camera mode persp"
2171	}
2172	}
2173	"xpan" - "ypan" {
2174	PanCamera
2175	}
2176	"qx" - "qy" - "qz" - "qw" {
2177	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2178	$_arcball quaternion $q
2179	EventuallyRotate $q
2180	}
2181	"zoom" {
2182	SendCmd "camera zoom $_view(zoom)"
2183	}
2184	}
2185	}
2186	}
2187	}
2188
2189	itcl::body Rappture::VtkHeightmapViewer::GetVtkData { args } {
2190	set bytes ""
2191	foreach dataobj [get] {
2192	foreach comp [$dataobj components] {
2193	set tag $dataobj-$comp
2194	set contents [$dataobj vtkdata $comp]
2195	append bytes "$contents\n"
2196	}
2197	}
2198	return [list .vtk $bytes]
2199	}
2200
2201	itcl::body Rappture::VtkHeightmapViewer::GetImage { args } {
2202	if { [image width $_image(download)] > 0 &&
2203	[image height $_image(download)] > 0 } {
2204	set bytes [$_image(download) data -format "jpeg -quality 100"]
2205	set bytes [Rappture::encoding::decode -as b64 $bytes]
2206	return [list .jpg $bytes]
2207	}
2208	return ""
2209	}
2210
2211	itcl::body Rappture::VtkHeightmapViewer::BuildDownloadPopup { popup command } {
2212	Rappture::Balloon $popup \
2213	-title "[Rappture::filexfer::label downloadWord] as..."
2214	set inner [$popup component inner]
2215	label $inner.summary -text "" -anchor w
2216	radiobutton $inner.vtk_button -text "VTK data file" \
2217	-variable [itcl::scope _downloadPopup(format)] \
2218	-font "Arial 9 " \
2219	-value vtk
2220	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2221	radiobutton $inner.image_button -text "Image File" \
2222	-variable [itcl::scope _downloadPopup(format)] \
2223	-font "Arial 9 " \
2224	-value image
2225	Rappture::Tooltip::for $inner.image_button \
2226	"Save as digital image."
2227
2228	button $inner.ok -text "Save" \
2229	-highlightthickness 0 -pady 2 -padx 3 \
2230	-command $command \
2231	-compound left \
2232	-image [Rappture::icon download]
2233
2234	button $inner.cancel -text "Cancel" \
2235	-highlightthickness 0 -pady 2 -padx 3 \
2236	-command [list $popup deactivate] \
2237	-compound left \
2238	-image [Rappture::icon cancel]
2239
2240	blt::table $inner \
2241	0,0 $inner.summary -cspan 2 \
2242	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2243	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2244	4,1 $inner.cancel -width .9i -fill y \
2245	4,0 $inner.ok -padx 2 -width .9i -fill y
2246	blt::table configure $inner r3 -height 4
2247	blt::table configure $inner r4 -pady 4
2248	raise $inner.image_button
2249	$inner.vtk_button invoke
2250	return $inner
2251	}
2252
2253	#
2254	# SetObjectStyle --
2255	#
2256	# Set the style of the heightmap/contour object. This gets calls
2257	# for each dataset once as it is loaded. It can overridden by
2258	# the user controls.
2259	#
2260	#
2261	itcl::body Rappture::VtkHeightmapViewer::SetObjectStyle { dataobj comp } {
2262	# Parse style string.
2263	set tag $dataobj-$comp
2264	array set style {
2265	-color BCGYR
2266	-levels 10
2267	-opacity 1.0
2268	}
2269	set stylelist [$dataobj style $comp]
2270	if { $stylelist != "" } {
2271	array set style $stylelist
2272	}
2273	# This is too complicated. We want to set the colormap, number of
2274	# isolines and opacity for the dataset. They can be the default values,
2275	# the style hints loaded with the dataset, or set by user controls. As
2276	# datasets get loaded, they first use the defaults that are overidden
2277	# by the style hints. If the user changes the global controls, then that
2278	# overrides everything else. I don't know what it means when global
2279	# controls are specified as style hints by each dataset. It complicates
2280	# the code to handle aberrant cases.
2281
2282	if { $_changed(-opacity) } {
2283	set style(-opacity) [expr $_settings(-opacity) * 0.01]
2284	}
2285	if { $_changed(-numisolines) } {
2286	set style(-levels) $_settings(-numisolines)
2287	}
2288	if { $_changed(-colormap) } {
2289	set style(-color) $_settings(-colormap)
2290	}
2291	if { $_currentColormap == "" } {
2292	$itk_component(colormap) value $style(-color)
2293	}
2294	if { [info exists style(-stretchtofit)] } {
2295	set _settings(-stretchtofit) $style(-stretchtofit)
2296	AdjustSetting -stretchtofit
2297	}
2298	if { $_currentNumIsolines != $style(-levels) } {
2299	set _currentNumIsolines $style(-levels)
2300	set _settings(-numisolines) $_currentNumIsolines
2301	$itk_component(numisolines) value $_currentNumIsolines
2302	UpdateContourList
2303	DrawLegend
2304	}
2305	SendCmd "outline add $tag"
2306	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2307	SendCmd "outline visible $_settings(-outline) $tag"
2308	set scale [GetHeightmapScale]
2309	SendCmd "[list heightmap add contourlist $_contourList $scale $tag]"
2310	set _comp2scale($tag) $_settings(-heightmapscale)
2311	SendCmd "heightmap edges $_settings(-edges) $tag"
2312	SendCmd "heightmap wireframe $_settings(-wireframe) $tag"
2313	SetCurrentColormap $style(-color)
2314	set color [$itk_component(isolinecolor) value]
2315	SendCmd "heightmap isolinecolor [Color2RGB $color] $tag"
2316	SendCmd "heightmap lighting $_settings(-isheightmap) $tag"
2317	SendCmd "heightmap isolines $_settings(-isolinesvisible) $tag"
2318	SendCmd "heightmap surface $_settings(-colormapvisible) $tag"
2319	SendCmd "heightmap opacity $style(-opacity) $tag"
2320	set _settings(-opacity) [expr $style(-opacity) * 100.0]
2321	}
2322
2323	itcl::body Rappture::VtkHeightmapViewer::IsValidObject { dataobj } {
2324	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2325	return 0
2326	}
2327	return 1
2328	}
2329
2330	# ----------------------------------------------------------------------
2331	# USAGE: ReceiveLegend <colormap> <title> <min> <max> <size>
2332	#
2333	# Invoked automatically whenever the "legend" command comes in from
2334	# the rendering server. Indicates that binary image data with the
2335	# specified <size> will follow.
2336	# ----------------------------------------------------------------------
2337	itcl::body Rappture::VtkHeightmapViewer::ReceiveLegend { colormap title min max size } {
2338	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2339	if { [isconnected] } {
2340	set bytes [ReceiveBytes $size]
2341	if { ![info exists _image(legend)] } {
2342	set _image(legend) [image create photo]
2343	}
2344	$_image(legend) configure -data $bytes
2345	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2346	if { [catch {DrawLegend} errs] != 0 } {
2347	global errorInfo
2348	puts stderr "errs=$errs errorInfo=$errorInfo"
2349	}
2350	}
2351	}
2352
2353	#
2354	# DrawLegend --
2355	#
2356	# Draws the legend in the own canvas on the right side of the plot area.
2357	#
2358	itcl::body Rappture::VtkHeightmapViewer::DrawLegend {} {
2359	set fname $_curFldName
2360	set c $itk_component(view)
2361	set w [winfo width $c]
2362	set h [winfo height $c]
2363	set font "Arial 8"
2364	set lineht [font metrics $font -linespace]
2365
2366	if { [string match "component*" $fname] } {
2367	set title ""
2368	} else {
2369	if { [info exists _fields($fname)] } {
2370	foreach { title units } $_fields($fname) break
2371	if { $units != "" } {
2372	set title [format "%s (%s)" $title $units]
2373	}
2374	} else {
2375	set title $fname
2376	}
2377	}
2378	set x [expr $w - 2]
2379	if { !$_settings(-legendvisible) } {
2380	$c delete legend
2381	return
2382	}
2383	if { [$c find withtag "legend"] == "" } {
2384	set y 2
2385	# If there's a legend title, create a text item for the title.
2386	$c create text $x $y \
2387	-anchor ne \
2388	-fill $itk_option(-plotforeground) -tags "title legend" \
2389	-font $font
2390	if { $title != "" } {
2391	incr y $lineht
2392	}
2393	$c create text $x $y \
2394	-anchor ne \
2395	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2396	-font $font
2397	incr y $lineht
2398	$c create image $x $y \
2399	-anchor ne \
2400	-image $_image(legend) -tags "colormap legend"
2401	$c create rectangle $x $y 1 1 \
2402	-fill "" -outline "" -tags "sensor legend"
2403	$c create text $x [expr {$h-2}] \
2404	-anchor se \
2405	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2406	-font $font
2407	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2408	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2409	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2410	}
2411	$c delete isoline
2412	set x2 $x
2413	set iw [image width $_image(legend)]
2414	set ih [image height $_image(legend)]
2415	set x1 [expr $x2 - ($iw*12)/10]
2416	set color [$itk_component(isolinecolor) value]
2417
2418	# Draw the isolines on the legend.
2419	array unset _isolines
2420	if { $color != "none" && [info exists _limits($_curFldName)] &&
2421	$_settings(-isolinesvisible) && $_currentNumIsolines > 0 } {
2422
2423	foreach { vmin vmax } $_limits($_curFldName) break
2424	set range [expr double($vmax - $vmin)]
2425	if { $range <= 0.0 } {
2426	set range 1.0; # Min is greater or equal to max.
2427	}
2428	set tags "isoline legend"
2429	set offset [expr 2 + $lineht]
2430	if { $title != "" } {
2431	incr offset $lineht
2432	}
2433	foreach value $_contourList {
2434	set norm [expr 1.0 - (($value - $vmin) / $range)]
2435	set y1 [expr int(round(($norm * $ih) + $offset))]
2436	for { set off 0 } { $off < 3 } { incr off } {
2437	set _isolines([expr $y1 + $off]) $value
2438	set _isolines([expr $y1 - $off]) $value
2439	}
2440	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2441	}
2442	}
2443
2444	$c bind title <ButtonPress> [itcl::code $this Combo post]
2445	$c bind title <Enter> [itcl::code $this Combo activate]
2446	$c bind title <Leave> [itcl::code $this Combo deactivate]
2447	# Reset the item coordinates according the current size of the plot.
2448	if { [info exists _limits($_curFldName)] } {
2449	foreach { vmin vmax } $_limits($_curFldName) break
2450	$c itemconfigure vmin -text [format %g $vmin]
2451	$c itemconfigure vmax -text [format %g $vmax]
2452	}
2453	set y 2
2454	# If there's a legend title, move the title to the correct position
2455	if { $title != "" } {
2456	$c itemconfigure title -text $title
2457	$c coords title $x $y
2458	incr y $lineht
2459	}
2460	$c coords vmax $x $y
2461	incr y $lineht
2462	$c coords colormap $x $y
2463	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2464	$c raise sensor
2465	$c coords vmin $x [expr {$h - 2}]
2466	}
2467
2468	#
2469	# EnterLegend --
2470	#
2471	itcl::body Rappture::VtkHeightmapViewer::EnterLegend { x y } {
2472	SetLegendTip $x $y
2473	}
2474
2475	#
2476	# MotionLegend --
2477	#
2478	itcl::body Rappture::VtkHeightmapViewer::MotionLegend { x y } {
2479	Rappture::Tooltip::tooltip cancel
2480	set c $itk_component(view)
2481	set cw [winfo width $c]
2482	set ch [winfo height $c]
2483	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2484	SetLegendTip $x $y
2485	}
2486	}
2487
2488	#
2489	# LeaveLegend --
2490	#
2491	itcl::body Rappture::VtkHeightmapViewer::LeaveLegend { } {
2492	Rappture::Tooltip::tooltip cancel
2493	.rappturetooltip configure -icon ""
2494	}
2495
2496	#
2497	# SetLegendTip --
2498	#
2499	itcl::body Rappture::VtkHeightmapViewer::SetLegendTip { x y } {
2500	set fname $_curFldName
2501	set c $itk_component(view)
2502	set w [winfo width $c]
2503	set h [winfo height $c]
2504	set font "Arial 8"
2505	set lineht [font metrics $font -linespace]
2506
2507	set ih [image height $_image(legend)]
2508	# Subtract off the offset of the color ramp from the top of the canvas
2509	set iy [expr $y - ($lineht + 2)]
2510
2511	if { [string match "component*" $fname] } {
2512	set title ""
2513	} else {
2514	if { [info exists _fields($fname)] } {
2515	foreach { title units } $_fields($fname) break
2516	if { $units != "" } {
2517	set title [format "%s (%s)" $title $units]
2518	}
2519	} else {
2520	set title $fname
2521	}
2522	}
2523	# If there's a legend title, increase the offset by the line height.
2524	if { $title != "" } {
2525	incr iy -$lineht
2526	}
2527
2528	# Make a swatch of the selected color
2529	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2530	return
2531	}
2532
2533	if { ![info exists _image(swatch)] } {
2534	set _image(swatch) [image create photo -width 24 -height 24]
2535	}
2536	set color [eval format "\#%02x%02x%02x" $pixel]
2537	$_image(swatch) put black -to 0 0 23 23
2538	$_image(swatch) put $color -to 1 1 22 22
2539
2540	# Compute the value of the point
2541	if { [info exists _limits($fname)] } {
2542	foreach { vmin vmax } $_limits($fname) break
2543	set t [expr 1.0 - (double($iy) / double($ih-1))]
2544	set value [expr $t * ($vmax - $vmin) + $vmin]
2545	} else {
2546	set value 0.0
2547	}
2548	set tipx [expr $x + 15]
2549	set tipy [expr $y - 5]
2550	.rappturetooltip configure -icon $_image(swatch)
2551	if { [info exists _isolines($y)] } {
2552	Rappture::Tooltip::text $c [format "$title %g (isoline)" $_isolines($y)]
2553	} else {
2554	Rappture::Tooltip::text $c [format "$title %g" $value]
2555	}
2556	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2557	}
2558
2559	# ----------------------------------------------------------------------
2560	# USAGE: _dropdown post
2561	# USAGE: _dropdown unpost
2562	# USAGE: _dropdown select
2563	#
2564	# Used internally to handle the dropdown list for this combobox. The
2565	# post/unpost options are invoked when the list is posted or unposted
2566	# to manage the relief of the controlling button. The select option
2567	# is invoked whenever there is a selection from the list, to assign
2568	# the value back to the gauge.
2569	# ----------------------------------------------------------------------
2570	itcl::body Rappture::VtkHeightmapViewer::Combo {option} {
2571	set c $itk_component(view)
2572	switch -- $option {
2573	post {
2574	foreach { x1 y1 x2 y2 } [$c bbox title] break
2575	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2576	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2577	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2578	tk_popup $itk_component(fieldmenu) $x $y
2579	}
2580	activate {
2581	$c itemconfigure title -fill red
2582	}
2583	deactivate {
2584	$c itemconfigure title -fill $itk_option(-plotforeground)
2585	}
2586	invoke {
2587	$itk_component(field) value $_curFldLabel
2588	AdjustSetting -field
2589	}
2590	default {
2591	error "bad option \"$option\": should be post, unpost, select"
2592	}
2593	}
2594	}
2595
2596	itcl::body Rappture::VtkHeightmapViewer::GetHeightmapScale {} {
2597	if { $_settings(-isheightmap) } {
2598	set val $_settings(-heightmapscale)
2599	set sval [expr { $val >= 50 ? double($val)/50.0 : 1.0/(2.0-(double($val)/50.0)) }]
2600	return $sval
2601	}
2602	return 0
2603	}
2604
2605	itcl::body Rappture::VtkHeightmapViewer::SetOrientation { side } {
2606	array set positions {
2607	front "0.707107 0.707107 0 0"
2608	back "0 0 0.707107 0.707107"
2609	left "0.5 0.5 -0.5 -0.5"
2610	right "0.5 0.5 0.5 0.5"
2611	top "1 0 0 0"
2612	bottom "0 1 0 0"
2613	}
2614	foreach name { qw qx qy qz } value $positions($side) {
2615	set _view($name) $value
2616	}
2617	set q [list $_view(qw) $_view(qx) $_view(qy) $_view(qz)]
2618	$_arcball quaternion $q
2619	SendCmd "camera orient $q"
2620	SendCmd "camera reset"
2621	set _view(xpan) 0
2622	set _view(ypan) 0
2623	set _view(zoom) 1.0
2624	}
2625
2626	itcl::body Rappture::VtkHeightmapViewer::UpdateContourList {} {
2627	if {$_currentNumIsolines == 0} {
2628	set _contourList ""
2629	return
2630	}
2631	if { ![info exists _limits($_curFldName)] } {
2632	return
2633	}
2634	foreach { vmin vmax } $_limits($_curFldName) break
2635	set v [blt::vector create \#auto]
2636	$v seq $vmin $vmax [expr $_currentNumIsolines+2]
2637	$v delete end 0
2638	set _contourList [$v range 0 end]
2639	blt::vector destroy $v
2640	}

Note: See TracBrowser for help on using the repository browser.

Download in other formats: