Context Navigation

source: branches/1.4/gui/scripts/vtkheightmapviewer.tcl @ 5143

Last change on this file since 5143 was 5143, checked in by ldelgass, 10 years ago
Merge r5134:5135,r5137:5141 from trunk
File size: 90.8 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 parameters {title args} {
61	# do nothing
62	}
63	public method scale {args}
64
65	# The following methods are only used by this class.
66	private method AdjustSetting {what {value ""}}
67	private method BuildAxisTab {}
68	private method BuildCameraTab {}
69	private method BuildColormap { name }
70	private method BuildContourTab {}
71	private method BuildDownloadPopup { widget command }
72	private method CameraReset {}
73	private method Combo { option }
74	private method Connect {}
75	private method CurrentDatasets {args}
76	private method Disconnect {}
77	private method DoResize {}
78	private method DoRotate {}
79	private method DrawLegend {}
80	private method EnterLegend { x y }
81	private method EventuallyRequestLegend {}
82	private method EventuallyResize { w h }
83	private method EventuallyRotate { q }
84	private method GetHeightmapScale {}
85	private method GetImage { args }
86	private method GetVtkData { args }
87	private method InitSettings { args }
88	private method IsValidObject { dataobj }
89	private method LeaveLegend {}
90	private method MotionLegend { x y }
91	private method Pan {option x y}
92	private method PanCamera {}
93	private method Pick {x y}
94	private method QuaternionToView { q } {
95	foreach { _view(-qw) _view(-qx) _view(-qy) _view(-qz) } $q break
96	}
97	private method Rebuild {}
98	private method ReceiveDataset { args }
99	private method ReceiveImage { args }
100	private method ReceiveLegend { colormap title min max size }
101	private method RequestLegend {}
102	private method ResetAxes {}
103	private method Rotate {option x y}
104	private method SetCurrentColormap { color }
105	private method SetLegendTip { x y }
106	private method SetObjectStyle { dataobj comp }
107	private method SetOrientation { side }
108	private method UpdateContourList {}
109	private method ViewToQuaternion {} {
110	return [list $_view(-qw) $_view(-qx) $_view(-qy) $_view(-qz)]
111	}
112	private method Zoom {option}
113
114	private variable _arcball ""
115	private variable _dlist "" ; # list of data objects
116	private variable _obj2datasets
117	private variable _obj2ovride ; # maps dataobj => style override
118	private variable _comp2scale; # maps dataset to the heightmap scale.
119	private variable _datasets ; # contains all the dataobj-component
120	; # datasets in the server
121	private variable _colormaps ; # contains all the colormaps
122	; # in the server.
123
124	# The name of the current colormap used. The colormap is global to all
125	# heightmaps displayed.
126	private variable _currentColormap ""
127	private variable _currentNumIsolines -1
128
129	private variable _maxScale 100; # This is the # of times the x-axis
130	# and y-axis ranges can differ before
131	# automatically turning on
132	# -stretchtofit
133
134	private variable _click ; # info used for rotate operations
135	private variable _limits ; # Holds overall limits for all dataobjs
136	# using the viewer.
137	private variable _view ; # view params for 3D view
138	private variable _settings
139	private variable _changed
140	private variable _initialStyle ""; # First found style in dataobjects.
141	private variable _reset 1; # Indicates if the connection to the
142	# render server was reset
143	private variable _beforeConnect 1; # Indicates if we are in the constructor
144	# before the server connection is made
145
146	private variable _first "" ; # This is the topmost dataset.
147	private variable _start 0
148	private variable _isolines
149	private variable _contourList ""
150
151	common _downloadPopup; # download options from popup
152	private common _hardcopy
153	private variable _width 0
154	private variable _height 0
155	private variable _legendWidth 0
156	private variable _legendHeight 0
157	private variable _resizePending 0
158	private variable _rotatePending 0
159	private variable _legendPending 0
160	private variable _fieldNames {}
161	private variable _fields
162	private variable _curFldName ""
163	private variable _curFldLabel ""
164	private variable _colorMode "scalar";# Mode of colormap (vmag or scalar)
165	}
166
167	itk::usual VtkHeightmapViewer {
168	keep -background -foreground -cursor -font
169	keep -plotbackground -plotforeground -mode
170	}
171
172	# ----------------------------------------------------------------------
173	# CONSTRUCTOR
174	# ----------------------------------------------------------------------
175	itcl::body Rappture::VtkHeightmapViewer::constructor {hostlist args} {
176	set _serverType "vtkvis"
177
178	EnableWaitDialog 900
179	# Rebuild event
180	$_dispatcher register !rebuild
181	$_dispatcher dispatch $this !rebuild "[itcl::code $this Rebuild]; list"
182
183	# Resize event
184	$_dispatcher register !resize
185	$_dispatcher dispatch $this !resize "[itcl::code $this DoResize]; list"
186
187	# Rotate event
188	$_dispatcher register !rotate
189	$_dispatcher dispatch $this !rotate "[itcl::code $this DoRotate]; list"
190
191	# Legend event
192	$_dispatcher register !legend
193	$_dispatcher dispatch $this !legend "[itcl::code $this RequestLegend]; list"
194
195	#
196	# Populate parser with commands handle incoming requests
197	#
198	$_parser alias image [itcl::code $this ReceiveImage]
199	$_parser alias dataset [itcl::code $this ReceiveDataset]
200	$_parser alias legend [itcl::code $this ReceiveLegend]
201
202	# Create image for legend colorbar.
203	set _image(legend) [image create photo]
204
205	# Initialize the view to some default parameters.
206	array set _view {
207	-ortho 0
208	-qw 0.36
209	-qx 0.25
210	-qy 0.50
211	-qz 0.70
212	-xpan 0
213	-ypan 0
214	-zoom 1.0
215	}
216	set _arcball [blt::arcball create 100 100]
217	$_arcball quaternion [ViewToQuaternion]
218
219	array set _settings {
220	-axisflymode "static"
221	-axislabels 1
222	-axisminorticks 1
223	-axisvisible 1
224	-colormap BCGYR
225	-colormapdiscrete 0
226	-colormapvisible 1
227	-edges 0
228	-field "Default"
229	-heightmapscale 50
230	-isheightmap 0
231	-isolinecolor black
232	-isolinesvisible 1
233	-legendvisible 1
234	-lighting 1
235	-numisolines 10
236	-opacity 100
237	-outline 0
238	-savelighting 1
239	-saveopacity 100
240	-saveoutline 0
241	-stretchtofit 0
242	-wireframe 0
243	-xgrid 0
244	-ygrid 0
245	-zgrid 0
246	}
247	array set _changed {
248	-colormap 0
249	-numisolines 0
250	-opacity 0
251	}
252	itk_component add view {
253	canvas $itk_component(plotarea).view \
254	-highlightthickness 0 -borderwidth 0
255	} {
256	usual
257	ignore -highlightthickness -borderwidth -background
258	}
259
260	itk_component add fieldmenu {
261	menu $itk_component(plotarea).menu \
262	-relief flat \
263	-tearoff no
264	} {
265	usual
266	ignore -background -foreground -relief -tearoff
267	}
268	set c $itk_component(view)
269	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
270	bind $c <4> [itcl::code $this Zoom in 0.25]
271	bind $c <5> [itcl::code $this Zoom out 0.25]
272	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
273	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
274	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
275	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
276	bind $c <Enter> "focus %W"
277	bind $c <Control-F1> [itcl::code $this ToggleConsole]
278
279	# Fix the scrollregion in case we go off screen
280	$c configure -scrollregion [$c bbox all]
281
282	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
283	set _map(cwidth) -1
284	set _map(cheight) -1
285	set _map(zoom) 1.0
286	set _map(original) ""
287
288	set f [$itk_component(main) component controls]
289	itk_component add reset {
290	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
291	-highlightthickness 0 \
292	-image [Rappture::icon reset-view] \
293	-command [itcl::code $this CameraReset]
294	} {
295	usual
296	ignore -highlightthickness
297	}
298	pack $itk_component(reset) -side top -padx 2 -pady { 2 0 }
299	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
300
301	itk_component add zoomin {
302	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
303	-highlightthickness 0 \
304	-image [Rappture::icon zoom-in] \
305	-command [itcl::code $this Zoom in]
306	} {
307	usual
308	ignore -highlightthickness
309	}
310	pack $itk_component(zoomin) -side top -padx 2 -pady { 2 0 }
311	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
312
313	itk_component add zoomout {
314	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
315	-highlightthickness 0 \
316	-image [Rappture::icon zoom-out] \
317	-command [itcl::code $this Zoom out]
318	} {
319	usual
320	ignore -highlightthickness
321	}
322	pack $itk_component(zoomout) -side top -padx 2 -pady { 2 0 }
323	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
324
325	itk_component add mode {
326	Rappture::PushButton $f.mode \
327	-onimage [Rappture::icon surface] \
328	-offimage [Rappture::icon surface] \
329	-variable [itcl::scope _settings(-isheightmap)] \
330	-command [itcl::code $this AdjustSetting -isheightmap] \
331	}
332	Rappture::Tooltip::for $itk_component(mode) \
333	"Toggle the surface/contour on/off"
334	pack $itk_component(mode) -padx 2 -pady { 2 0 }
335
336	itk_component add stretchtofit {
337	Rappture::PushButton $f.stretchtofit \
338	-onimage [Rappture::icon stretchtofit] \
339	-offimage [Rappture::icon stretchtofit] \
340	-variable [itcl::scope _settings(-stretchtofit)] \
341	-command [itcl::code $this AdjustSetting -stretchtofit] \
342	}
343	Rappture::Tooltip::for $itk_component(stretchtofit) \
344	"Stretch plot to fit window on/off"
345	pack $itk_component(stretchtofit) -padx 2 -pady 2
346
347	if { [catch {
348	BuildContourTab
349	BuildAxisTab
350	BuildCameraTab
351	} errs] != 0 } {
352	global errorInfo
353	puts stderr "errs=$errs errorInfo=$errorInfo"
354	}
355
356	# Hack around the Tk panewindow. The problem is that the requested
357	# size of the 3d view isn't set until an image is retrieved from
358	# the server. So the panewindow uses the tiny size.
359	set w 10000
360	pack forget $itk_component(view)
361	blt::table $itk_component(plotarea) \
362	0,0 $itk_component(view) -fill both -reqwidth $w
363	blt::table configure $itk_component(plotarea) c1 -resize none
364
365	# Bindings for panning via mouse
366	bind $itk_component(view) <ButtonPress-2> \
367	[itcl::code $this Pan click %x %y]
368	bind $itk_component(view) <B2-Motion> \
369	[itcl::code $this Pan drag %x %y]
370	bind $itk_component(view) <ButtonRelease-2> \
371	[itcl::code $this Pan release %x %y]
372
373	#bind $itk_component(view) <ButtonRelease-3> \
374	# [itcl::code $this Pick %x %y]
375
376	# Bindings for panning via keyboard
377	bind $itk_component(view) <KeyPress-Left> \
378	[itcl::code $this Pan set -10 0]
379	bind $itk_component(view) <KeyPress-Right> \
380	[itcl::code $this Pan set 10 0]
381	bind $itk_component(view) <KeyPress-Up> \
382	[itcl::code $this Pan set 0 -10]
383	bind $itk_component(view) <KeyPress-Down> \
384	[itcl::code $this Pan set 0 10]
385	bind $itk_component(view) <Shift-KeyPress-Left> \
386	[itcl::code $this Pan set -2 0]
387	bind $itk_component(view) <Shift-KeyPress-Right> \
388	[itcl::code $this Pan set 2 0]
389	bind $itk_component(view) <Shift-KeyPress-Up> \
390	[itcl::code $this Pan set 0 -2]
391	bind $itk_component(view) <Shift-KeyPress-Down> \
392	[itcl::code $this Pan set 0 2]
393
394	# Bindings for zoom via keyboard
395	bind $itk_component(view) <KeyPress-Prior> \
396	[itcl::code $this Zoom out]
397	bind $itk_component(view) <KeyPress-Next> \
398	[itcl::code $this Zoom in]
399
400	bind $itk_component(view) <Enter> "focus $itk_component(view)"
401
402	if {[string equal "x11" [tk windowingsystem]]} {
403	# Bindings for zoom via mouse
404	bind $itk_component(view) <4> [itcl::code $this Zoom out]
405	bind $itk_component(view) <5> [itcl::code $this Zoom in]
406	}
407
408	set _image(download) [image create photo]
409	eval itk_initialize $args
410	Connect
411	set _beforeConnect 0
412	}
413
414	# ----------------------------------------------------------------------
415	# DESTRUCTOR
416	# ----------------------------------------------------------------------
417	itcl::body Rappture::VtkHeightmapViewer::destructor {} {
418	Disconnect
419	image delete $_image(plot)
420	image delete $_image(download)
421	catch { blt::arcball destroy $_arcball }
422	}
423
424	itcl::body Rappture::VtkHeightmapViewer::DoResize {} {
425	if { $_width < 2 } {
426	set _width 500
427	}
428	if { $_height < 2 } {
429	set _height 500
430	}
431	set _start [clock clicks -milliseconds]
432	SendCmd "screen size [expr $_width - 20] $_height"
433
434	set font "Arial 8"
435	set lh [font metrics $font -linespace]
436	set h [expr {$_height - 2 * ($lh + 2)}]
437	if { $h != $_legendHeight } {
438	EventuallyRequestLegend
439	} else {
440	DrawLegend
441	}
442	set _resizePending 0
443	}
444
445	itcl::body Rappture::VtkHeightmapViewer::DoRotate {} {
446	SendCmd "camera orient [ViewToQuaternion]"
447	set _rotatePending 0
448	}
449
450	itcl::body Rappture::VtkHeightmapViewer::EventuallyRequestLegend {} {
451	if { !$_legendPending } {
452	set _legendPending 1
453	$_dispatcher event -idle !legend
454	}
455	}
456
457	itcl::body Rappture::VtkHeightmapViewer::EventuallyResize { w h } {
458	set _width $w
459	set _height $h
460	$_arcball resize $w $h
461	if { !$_resizePending } {
462	set _resizePending 1
463	$_dispatcher event -after 250 !resize
464	}
465	}
466
467	set rotate_delay 100
468
469	itcl::body Rappture::VtkHeightmapViewer::EventuallyRotate { q } {
470	QuaternionToView $q
471	if { !$_rotatePending } {
472	set _rotatePending 1
473	global rotate_delay
474	$_dispatcher event -after $rotate_delay !rotate
475	}
476	}
477
478	# ----------------------------------------------------------------------
479	# USAGE: add <dataobj> ?<settings>?
480	#
481	# Clients use this to add a data object to the plot. The optional
482	# <settings> are used to configure the plot. Allowed settings are
483	# -color, -brightness, -width, -linestyle, and -raise.
484	# ----------------------------------------------------------------------
485	itcl::body Rappture::VtkHeightmapViewer::add {dataobj {settings ""}} {
486	if { ![$dataobj isvalid] } {
487	return; # Object doesn't contain valid data.
488	}
489	array set params {
490	-color auto
491	-width 1
492	-linestyle solid
493	-brightness 0
494	-raise 0
495	-description ""
496	-param ""
497	-type ""
498	}
499	array set params $settings
500	set params(-description) ""
501	set params(-param) ""
502	array set params $settings
503
504	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
505	# can't handle -autocolors yet
506	set params(-color) white
507	}
508	set pos [lsearch -exact $_dlist $dataobj]
509	if {$pos < 0} {
510	lappend _dlist $dataobj
511	}
512	set _obj2ovride($dataobj-color) $params(-color)
513	set _obj2ovride($dataobj-width) $params(-width)
514	set _obj2ovride($dataobj-raise) $params(-raise)
515	$_dispatcher event -idle !rebuild
516	}
517
518
519	# ----------------------------------------------------------------------
520	# USAGE: delete ?<dataobj1> <dataobj2> ...?
521	#
522	# Clients use this to delete a dataobj from the plot. If no dataobjs
523	# are specified, then all dataobjs are deleted. No data objects are
524	# deleted. They are only removed from the display list.
525	#
526	# ----------------------------------------------------------------------
527	itcl::body Rappture::VtkHeightmapViewer::delete {args} {
528	if { [llength $args] == 0} {
529	set args $_dlist
530	}
531	# Delete all specified dataobjs
532	set changed 0
533	foreach dataobj $args {
534	set pos [lsearch -exact $_dlist $dataobj]
535	if { $pos < 0 } {
536	continue; # Don't know anything about it.
537	}
538	# Remove it from the dataobj list.
539	set _dlist [lreplace $_dlist $pos $pos]
540	array unset _obj2ovride $dataobj-*
541	array unset _settings $dataobj-*
542	set changed 1
543	}
544	# If anything changed, then rebuild the plot
545	if { $changed } {
546	$_dispatcher event -idle !rebuild
547	}
548	}
549
550	# ----------------------------------------------------------------------
551	# USAGE: get ?-objects?
552	# USAGE: get ?-visible?
553	# USAGE: get ?-image view?
554	#
555	# Clients use this to query the list of objects being plotted, in
556	# order from bottom to top of this result. The optional "-image"
557	# flag can also request the internal images being shown.
558	# ----------------------------------------------------------------------
559	itcl::body Rappture::VtkHeightmapViewer::get {args} {
560	if {[llength $args] == 0} {
561	set args "-objects"
562	}
563	set op [lindex $args 0]
564	switch -- $op {
565	"-objects" {
566	# put the dataobj list in order according to -raise options
567	set dlist {}
568	foreach dataobj $_dlist {
569	if { ![IsValidObject $dataobj] } {
570	continue
571	}
572	if {[info exists _obj2ovride($dataobj-raise)] &&
573	$_obj2ovride($dataobj-raise)} {
574	set dlist [linsert $dlist 0 $dataobj]
575	} else {
576	lappend dlist $dataobj
577	}
578	}
579	return $dlist
580	}
581	"-visible" {
582	set dlist {}
583	foreach dataobj $_dlist {
584	if { ![IsValidObject $dataobj] } {
585	continue
586	}
587	if { ![info exists _obj2ovride($dataobj-raise)] } {
588	# No setting indicates that the object isn't visible.
589	continue
590	}
591	# Otherwise use the -raise parameter to put the object to
592	# the front of the list.
593	if { $_obj2ovride($dataobj-raise) } {
594	set dlist [linsert $dlist 0 $dataobj]
595	} else {
596	lappend dlist $dataobj
597	}
598	}
599	return $dlist
600	}
601	-image {
602	if {[llength $args] != 2} {
603	error "wrong # args: should be \"get -image view\""
604	}
605	switch -- [lindex $args end] {
606	view {
607	return $_image(plot)
608	}
609	default {
610	error "bad image name \"[lindex $args end]\": should be view"
611	}
612	}
613	}
614	default {
615	error "bad option \"$op\": should be -objects or -image"
616	}
617	}
618	}
619
620	#
621	# scale --
622	#
623	# This gets called either incrementally as new simulations are
624	# added or all at once as a sequence of heightmaps.
625	# This accounts for all objects--even those not showing on the
626	# screen. Because of this, the limits are appropriate for all
627	# objects as the user scans through data in the ResultSet viewer.
628	#
629	itcl::body Rappture::VtkHeightmapViewer::scale {args} {
630	foreach dataobj $args {
631	if { ![$dataobj isvalid] } {
632	continue; # Object doesn't contain valid data.
633	}
634	foreach axis { x y } {
635	set lim [$dataobj limits $axis]
636	if { ![info exists _limits($axis)] } {
637	set _limits($axis) $lim
638	continue
639	}
640	foreach {min max} $lim break
641	foreach {amin amax} $_limits($axis) break
642	if { $amin > $min } {
643	set amin $min
644	}
645	if { $amax < $max } {
646	set amax $max
647	}
648	set _limits($axis) [list $amin $amax]
649	set units [$dataobj hints ${axis}units]
650	set found($units) 1
651	}
652	foreach { fname lim } [$dataobj fieldlimits] {
653	if { ![info exists _limits($fname)] } {
654	set _limits($fname) $lim
655	continue
656	}
657	foreach {min max} $lim break
658	foreach {fmin fmax} $_limits($fname) break
659	if { $fmin > $min } {
660	set fmin $min
661	}
662	if { $fmax < $max } {
663	set fmax $max
664	}
665	set _limits($fname) [list $fmin $fmax]
666	}
667	}
668	if { [array size found] > 1 } {
669	set _settings(-stretchtofit) 1
670	} else {
671	# Check if the range of the x and y axes requires that we stretch
672	# the contour to fit the plotting area. This can happen when the
673	# x and y scales differ greatly (> 100x)
674	foreach {xmin xmax} $_limits(x) break
675	foreach {ymin ymax} $_limits(y) break
676	if { (($xmax - $xmin) > (($ymax -$ymin) * $_maxScale)) \|\|
677	((($xmax - $xmin) * $_maxScale) < ($ymax -$ymin)) } {
678	set _settings(-stretchtofit) 1
679	}
680	}
681	}
682
683	# ----------------------------------------------------------------------
684	# USAGE: download coming
685	# USAGE: download controls <downloadCommand>
686	# USAGE: download now
687	#
688	# Clients use this method to create a downloadable representation
689	# of the plot. Returns a list of the form {ext string}, where
690	# "ext" is the file extension (indicating the type of data) and
691	# "string" is the data itself.
692	# ----------------------------------------------------------------------
693	itcl::body Rappture::VtkHeightmapViewer::download {option args} {
694	switch $option {
695	coming {
696	if {[catch {
697	blt::winop snap $itk_component(plotarea) $_image(download)
698	}]} {
699	$_image(download) configure -width 1 -height 1
700	$_image(download) put #000000
701	}
702	}
703	controls {
704	set popup .vtkviewerdownload
705	if { ![winfo exists .vtkviewerdownload] } {
706	set inner [BuildDownloadPopup $popup [lindex $args 0]]
707	} else {
708	set inner [$popup component inner]
709	}
710	set _downloadPopup(image_controls) $inner.image_frame
711	set num [llength [get]]
712	set num [expr {($num == 1) ? "1 result" : "$num results"}]
713	set word [Rappture::filexfer::label downloadWord]
714	$inner.summary configure -text "$word $num in the following format:"
715	update idletasks ;# Fix initial sizes
716	return $popup
717	}
718	now {
719	set popup .vtkviewerdownload
720	if {[winfo exists .vtkviewerdownload]} {
721	$popup deactivate
722	}
723	switch -- $_downloadPopup(format) {
724	"image" {
725	return [$this GetImage [lindex $args 0]]
726	}
727	"vtk" {
728	return [$this GetVtkData [lindex $args 0]]
729	}
730	}
731	return ""
732	}
733	default {
734	error "bad option \"$option\": should be coming, controls, now"
735	}
736	}
737	}
738
739	# ----------------------------------------------------------------------
740	# USAGE: Connect ?<host:port>,<host:port>...?
741	#
742	# Clients use this method to establish a connection to a new
743	# server, or to reestablish a connection to the previous server.
744	# Any existing connection is automatically closed.
745	# ----------------------------------------------------------------------
746	itcl::body Rappture::VtkHeightmapViewer::Connect {} {
747	global readyForNextFrame
748	set readyForNextFrame 1
749	set _reset 1
750	set _hosts [GetServerList "vtkvis"]
751	if { "" == $_hosts } {
752	return 0
753	}
754	set result [VisViewer::Connect $_hosts]
755	if { $result } {
756	if { $_reportClientInfo } {
757	# Tell the server the viewer, hub, user and session.
758	# Do this immediately on connect before buffering any commands
759	global env
760
761	set info {}
762	set user "???"
763	if { [info exists env(USER)] } {
764	set user $env(USER)
765	}
766	set session "???"
767	if { [info exists env(SESSION)] } {
768	set session $env(SESSION)
769	}
770	lappend info "version" "$Rappture::version"
771	lappend info "build" "$Rappture::build"
772	lappend info "svnurl" "$Rappture::svnurl"
773	lappend info "installdir" "$Rappture::installdir"
774	lappend info "hub" [exec hostname]
775	lappend info "client" "vtkheightmapviewer"
776	lappend info "user" $user
777	lappend info "session" $session
778	SendCmd "clientinfo [list $info]"
779	}
780	set w [winfo width $itk_component(view)]
781	set h [winfo height $itk_component(view)]
782	EventuallyResize $w $h
783	}
784	return $result
785	}
786
787	#
788	# isconnected --
789	#
790	# Indicates if we are currently connected to the visualization server.
791	#
792	itcl::body Rappture::VtkHeightmapViewer::isconnected {} {
793	return [VisViewer::IsConnected]
794	}
795
796	#
797	# disconnect --
798	#
799	itcl::body Rappture::VtkHeightmapViewer::disconnect {} {
800	Disconnect
801	set _reset 1
802	}
803
804	#
805	# Disconnect --
806	#
807	# Clients use this method to disconnect from the current rendering
808	# server.
809	#
810	itcl::body Rappture::VtkHeightmapViewer::Disconnect {} {
811	VisViewer::Disconnect
812
813	$_dispatcher cancel !rebuild
814	$_dispatcher cancel !resize
815	$_dispatcher cancel !rotate
816	$_dispatcher cancel !legend
817	# disconnected -- no more data sitting on server
818	array unset _datasets
819	array unset _data
820	array unset _colormaps
821	array unset _obj2datasets
822	global readyForNextFrame
823	set readyForNextFrame 1
824	}
825
826	# ----------------------------------------------------------------------
827	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
828	#
829	# Invoked automatically whenever the "image" command comes in from
830	# the rendering server. Indicates that binary image data with the
831	# specified <size> will follow.
832	# ----------------------------------------------------------------------
833	itcl::body Rappture::VtkHeightmapViewer::ReceiveImage { args } {
834	global readyForNextFrame
835	set readyForNextFrame 1
836	array set info {
837	-token "???"
838	-bytes 0
839	-type image
840	}
841	array set info $args
842	set bytes [ReceiveBytes $info(-bytes)]
843	if { $info(-type) == "image" } {
844	if 0 {
845	set f [open "last.ppm" "w"]
846	fconfigure $f -encoding binary
847	puts -nonewline $f $bytes
848	close $f
849	}
850	$_image(plot) configure -data $bytes
851	set time [clock seconds]
852	set date [clock format $time]
853	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
854	if { $_start > 0 } {
855	set finish [clock clicks -milliseconds]
856	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
857	set _start 0
858	}
859	} elseif { $info(type) == "print" } {
860	set tag $this-print-$info(-token)
861	set _hardcopy($tag) $bytes
862	}
863	}
864
865	#
866	# ReceiveDataset --
867	#
868	itcl::body Rappture::VtkHeightmapViewer::ReceiveDataset { args } {
869	if { ![isconnected] } {
870	return
871	}
872	set option [lindex $args 0]
873	switch -- $option {
874	"scalar" {
875	set option [lindex $args 1]
876	switch -- $option {
877	"world" {
878	foreach { x y z value tag } [lrange $args 2 end] break
879	}
880	"pixel" {
881	foreach { x y value tag } [lrange $args 2 end] break
882	}
883	}
884	}
885	"vector" {
886	set option [lindex $args 1]
887	switch -- $option {
888	"world" {
889	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
890	}
891	"pixel" {
892	foreach { x y vx vy vz tag } [lrange $args 2 end] break
893	}
894	}
895	}
896	"names" {
897	foreach { name } [lindex $args 1] {
898	#puts stderr "Dataset: $name"
899	}
900	}
901	default {
902	error "unknown dataset option \"$option\" from server"
903	}
904	}
905	}
906
907	# ----------------------------------------------------------------------
908	# USAGE: Rebuild
909	#
910	# Called automatically whenever something changes that affects the
911	# data in the widget. Clears any existing data and rebuilds the
912	# widget to display new data.
913	# ----------------------------------------------------------------------
914	itcl::body Rappture::VtkHeightmapViewer::Rebuild {} {
915	set w [winfo width $itk_component(view)]
916	set h [winfo height $itk_component(view)]
917	if { $w < 2 \|\| $h < 2 } {
918	update
919	$_dispatcher event -idle !rebuild
920	return
921	}
922
923	# Turn on buffering of commands to the server. We don't want to
924	# be preempted by a server disconnect/reconnect (which automatically
925	# generates a new call to Rebuild).
926	StartBufferingCommands
927
928	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
929	set _width $w
930	set _height $h
931	$_arcball resize $w $h
932	DoResize
933	if { $_settings(-stretchtofit) } {
934	AdjustSetting -stretchtofit
935	}
936	}
937	if { $_reset } {
938	#
939	# Reset the camera and other view parameters
940	#
941	InitSettings -isheightmap -background
942
943	# Setting a custom exponent and label format for axes is causing
944	# a problem with rounding. Near zero ticks aren't rounded by
945	# the %g format. The VTK CubeAxes seem to currently work best
946	# when allowed to automatically set the exponent and precision
947	# based on the axis ranges. This does tend to result in less
948	# visual clutter, so I think it is best to use the automatic
949	# settings by default. We can test more fine-grained
950	# controls on the axis settings tab if necessary.
951	# -Leif
952	#SendCmd "axis exp 0 0 0 1"
953
954	SendCmd "axis lrot z 90"
955	$_arcball quaternion [ViewToQuaternion]
956	if {$_settings(-isheightmap) } {
957	if { $_view(-ortho)} {
958	SendCmd "camera mode ortho"
959	} else {
960	SendCmd "camera mode persp"
961	}
962	DoRotate
963	SendCmd "camera reset"
964	}
965	PanCamera
966	StopBufferingCommands
967	SendCmd "imgflush"
968	StartBufferingCommands
969	}
970
971	set _first ""
972	# Start off with no datasets are visible.
973	SendCmd "dataset visible 0"
974	set scale [GetHeightmapScale]
975	foreach dataobj [get -objects] {
976	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
977	set _first $dataobj
978	}
979	set _obj2datasets($dataobj) ""
980	foreach comp [$dataobj components] {
981	set tag $dataobj-$comp
982	if { ![info exists _datasets($tag)] } {
983	set bytes [$dataobj vtkdata $comp]
984	if 0 {
985	set f [open /tmp/vtkheightmap.vtk "w"]
986	fconfigure $f -translation binary -encoding binary
987	puts -nonewline $f $bytes
988	close $f
989	}
990	set length [string length $bytes]
991	if { $_reportClientInfo } {
992	set info {}
993	lappend info "tool_id" [$dataobj hints toolid]
994	lappend info "tool_name" [$dataobj hints toolname]
995	lappend info "tool_title" [$dataobj hints tooltitle]
996	lappend info "tool_command" [$dataobj hints toolcommand]
997	lappend info "tool_revision" [$dataobj hints toolrevision]
998	lappend info "dataset_label" [$dataobj hints label]
999	lappend info "dataset_size" $length
1000	lappend info "dataset_tag" $tag
1001	SendCmd "clientinfo [list $info]"
1002	}
1003	SendCmd "dataset add $tag data follows $length"
1004	SendData $bytes
1005	set _datasets($tag) 1
1006	SetObjectStyle $dataobj $comp
1007	}
1008	lappend _obj2datasets($dataobj) $tag
1009	if { [info exists _obj2ovride($dataobj-raise)] } {
1010	# Setting dataset visible enables outline
1011	# and heightmap
1012	SendCmd "dataset visible 1 $tag"
1013	}
1014	if { ![info exists _comp2scale($tag)] \|\|
1015	$_comp2scale($tag) != $scale } {
1016	SendCmd "heightmap heightscale $scale $tag"
1017	set _comp2scale($tag) $scale
1018	}
1019	}
1020	}
1021	if { $_first != "" } {
1022	$itk_component(field) choices delete 0 end
1023	$itk_component(fieldmenu) delete 0 end
1024	array unset _fields
1025	set _curFldName ""
1026	foreach cname [$_first components] {
1027	foreach fname [$_first fieldnames $cname] {
1028	if { [info exists _fields($fname)] } {
1029	continue
1030	}
1031	foreach { label units components } \
1032	[$_first fieldinfo $fname] break
1033	$itk_component(field) choices insert end "$fname" "$label"
1034	$itk_component(fieldmenu) add radiobutton -label "$label" \
1035	-value $label -variable [itcl::scope _curFldLabel] \
1036	-selectcolor red \
1037	-activebackground $itk_option(-plotbackground) \
1038	-activeforeground $itk_option(-plotforeground) \
1039	-font "Arial 8" \
1040	-command [itcl::code $this Combo invoke]
1041	set _fields($fname) [list $label $units $components]
1042	if { $_curFldName == "" } {
1043	set _curFldName $fname
1044	set _curFldLabel $label
1045	}
1046	}
1047	}
1048	$itk_component(field) value $_curFldLabel
1049	}
1050	InitSettings -stretchtofit -outline
1051
1052	if { $_reset } {
1053	SendCmd "axis tickpos outside"
1054	#SendCmd "axis lformat all %g"
1055
1056	foreach axis { x y z } {
1057	set label ""
1058	if { $_first != "" } {
1059	if { $axis == "z" } {
1060	set label [$_first hints label]
1061	} else {
1062	set label [$_first hints ${axis}label]
1063	}
1064	}
1065	if { $label == "" } {
1066	if {$axis == "z"} {
1067	if { [string match "component*" $_curFldName] } {
1068	set label [string toupper $axis]
1069	} else {
1070	set label $_curFldLabel
1071	}
1072	} else {
1073	set label [string toupper $axis]
1074	}
1075	}
1076	# May be a space in the axis label.
1077	SendCmd [list axis name $axis $label]
1078
1079	set units ""
1080	if { $_first != "" } {
1081	if { $axis == "z" } {
1082	set units [$_first hints units]
1083	} else {
1084	set units [$_first hints ${axis}units]
1085	}
1086	}
1087	if { $units == "" && $axis == "z" } {
1088	if { $_first != "" && [$_first hints zunits] != "" } {
1089	set units [$_first hints zunits]
1090	} elseif { [info exists _fields($_curFldName)] } {
1091	set units [lindex $_fields($_curFldName) 1]
1092	}
1093	}
1094	# May be a space in the axis units.
1095	SendCmd [list axis units $axis $units]
1096	}
1097	#
1098	# Reset the camera and other view parameters
1099	#
1100	ResetAxes
1101	$_arcball quaternion [ViewToQuaternion]
1102	if {$_settings(-isheightmap) } {
1103	if { $_view(-ortho)} {
1104	SendCmd "camera mode ortho"
1105	} else {
1106	SendCmd "camera mode persp"
1107	}
1108	DoRotate
1109	SendCmd "camera reset"
1110	}
1111	PanCamera
1112	InitSettings -xgrid -ygrid -zgrid \
1113	-axisvisible -axislabels -heightmapscale -field -isheightmap \
1114	-numisolines
1115	if { [array size _fields] < 2 } {
1116	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1117	}
1118	RequestLegend
1119	set _reset 0
1120	}
1121	global readyForNextFrame
1122	set readyForNextFrame 0; # Don't advance to the next frame
1123
1124	# Actually write the commands to the server socket. If it fails, we don't
1125	# care. We're finished here.
1126	blt::busy hold $itk_component(hull)
1127	StopBufferingCommands
1128	blt::busy release $itk_component(hull)
1129	}
1130
1131	# ----------------------------------------------------------------------
1132	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1133	#
1134	# Returns a list of server IDs for the current datasets being displayed. This
1135	# is normally a single ID, but it might be a list of IDs if the current data
1136	# object has multiple components.
1137	# ----------------------------------------------------------------------
1138	itcl::body Rappture::VtkHeightmapViewer::CurrentDatasets {args} {
1139	set flag [lindex $args 0]
1140	switch -- $flag {
1141	"-all" {
1142	if { [llength $args] > 1 } {
1143	error "CurrentDatasets: can't specify dataobj after \"-all\""
1144	}
1145	set dlist [get -objects]
1146	}
1147	"-visible" {
1148	if { [llength $args] > 1 } {
1149	set dlist {}
1150	set args [lrange $args 1 end]
1151	foreach dataobj $args {
1152	if { [info exists _obj2ovride($dataobj-raise)] } {
1153	lappend dlist $dataobj
1154	}
1155	}
1156	} else {
1157	set dlist [get -visible]
1158	}
1159	}
1160	default {
1161	set dlist $args
1162	}
1163	}
1164	set rlist ""
1165	foreach dataobj $dlist {
1166	foreach comp [$dataobj components] {
1167	set tag $dataobj-$comp
1168	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1169	lappend rlist $tag
1170	}
1171	}
1172	}
1173	return $rlist
1174	}
1175
1176	itcl::body Rappture::VtkHeightmapViewer::CameraReset {} {
1177	array set _view {
1178	-qw 0.36
1179	-qx 0.25
1180	-qy 0.50
1181	-qz 0.70
1182	-xpan 0
1183	-ypan 0
1184	-zoom 1.0
1185	}
1186	if { $_first != "" } {
1187	set location [$_first hints camera]
1188	if { $location != "" } {
1189	array set _view $location
1190	}
1191	}
1192	$_arcball quaternion [ViewToQuaternion]
1193	if {$_settings(-isheightmap) } {
1194	DoRotate
1195	}
1196	SendCmd "camera reset"
1197	}
1198
1199	# ----------------------------------------------------------------------
1200	# USAGE: Zoom in
1201	# USAGE: Zoom out
1202	# USAGE: Zoom reset
1203	#
1204	# Called automatically when the user clicks on one of the zoom
1205	# controls for this widget. Changes the zoom for the current view.
1206	# ----------------------------------------------------------------------
1207	itcl::body Rappture::VtkHeightmapViewer::Zoom {option} {
1208	switch -- $option {
1209	"in" {
1210	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1211	SendCmd "camera zoom $_view(-zoom)"
1212	}
1213	"out" {
1214	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1215	SendCmd "camera zoom $_view(-zoom)"
1216	}
1217	"reset" {
1218	array set _view {
1219	-xpan 0
1220	-ypan 0
1221	-zoom 1.0
1222	}
1223	SendCmd "camera reset"
1224	}
1225	}
1226	}
1227
1228	itcl::body Rappture::VtkHeightmapViewer::PanCamera {} {
1229	set x $_view(-xpan)
1230	set y $_view(-ypan)
1231	SendCmd "camera pan $x $y"
1232	}
1233
1234
1235	# ----------------------------------------------------------------------
1236	# USAGE: Rotate click <x> <y>
1237	# USAGE: Rotate drag <x> <y>
1238	# USAGE: Rotate release <x> <y>
1239	#
1240	# Called automatically when the user clicks/drags/releases in the
1241	# plot area. Moves the plot according to the user's actions.
1242	# ----------------------------------------------------------------------
1243	itcl::body Rappture::VtkHeightmapViewer::Rotate {option x y} {
1244	switch -- $option {
1245	"click" {
1246	$itk_component(view) configure -cursor fleur
1247	set _click(x) $x
1248	set _click(y) $y
1249	}
1250	"drag" {
1251	if {[array size _click] == 0} {
1252	Rotate click $x $y
1253	} else {
1254	set w [winfo width $itk_component(view)]
1255	set h [winfo height $itk_component(view)]
1256	if {$w <= 0 \|\| $h <= 0} {
1257	return
1258	}
1259
1260	if {[catch {
1261	# this fails sometimes for no apparent reason
1262	set dx [expr {double($x-$_click(x))/$w}]
1263	set dy [expr {double($y-$_click(y))/$h}]
1264	}]} {
1265	return
1266	}
1267	if { $dx == 0 && $dy == 0 } {
1268	return
1269	}
1270	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1271	EventuallyRotate $q
1272	set _click(x) $x
1273	set _click(y) $y
1274	}
1275	}
1276	"release" {
1277	Rotate drag $x $y
1278	$itk_component(view) configure -cursor ""
1279	catch {unset _click}
1280	}
1281	default {
1282	error "bad option \"$option\": should be click, drag, release"
1283	}
1284	}
1285	}
1286
1287	itcl::body Rappture::VtkHeightmapViewer::Pick {x y} {
1288	foreach tag [CurrentDatasets -visible] {
1289	SendCmd "dataset getscalar pixel $x $y $tag"
1290	}
1291	}
1292
1293	# ----------------------------------------------------------------------
1294	# USAGE: $this Pan click x y
1295	# $this Pan drag x y
1296	# $this Pan release x y
1297	#
1298	# Called automatically when the user clicks on one of the zoom
1299	# controls for this widget. Changes the zoom for the current view.
1300	# ----------------------------------------------------------------------
1301	itcl::body Rappture::VtkHeightmapViewer::Pan {option x y} {
1302	switch -- $option {
1303	"set" {
1304	set w [winfo width $itk_component(view)]
1305	set h [winfo height $itk_component(view)]
1306	set x [expr $x / double($w)]
1307	set y [expr $y / double($h)]
1308	set _view(-xpan) [expr $_view(-xpan) + $x]
1309	set _view(-ypan) [expr $_view(-ypan) + $y]
1310	PanCamera
1311	return
1312	}
1313	"click" {
1314	set _click(x) $x
1315	set _click(y) $y
1316	$itk_component(view) configure -cursor hand1
1317	}
1318	"drag" {
1319	if { ![info exists _click(x)] } {
1320	set _click(x) $x
1321	}
1322	if { ![info exists _click(y)] } {
1323	set _click(y) $y
1324	}
1325	set w [winfo width $itk_component(view)]
1326	set h [winfo height $itk_component(view)]
1327	set dx [expr ($_click(x) - $x)/double($w)]
1328	set dy [expr ($_click(y) - $y)/double($h)]
1329	set _click(x) $x
1330	set _click(y) $y
1331	set _view(-xpan) [expr $_view(-xpan) - $dx]
1332	set _view(-ypan) [expr $_view(-ypan) - $dy]
1333	PanCamera
1334	}
1335	"release" {
1336	Pan drag $x $y
1337	$itk_component(view) configure -cursor ""
1338	}
1339	default {
1340	error "unknown option \"$option\": should set, click, drag, or release"
1341	}
1342	}
1343	}
1344
1345	# ----------------------------------------------------------------------
1346	# USAGE: InitSettings <what> ?<value>?
1347	#
1348	# Used internally to update rendering settings whenever parameters
1349	# change in the popup settings panel. Sends the new settings off
1350	# to the back end.
1351	# ----------------------------------------------------------------------
1352	itcl::body Rappture::VtkHeightmapViewer::InitSettings { args } {
1353	foreach spec $args {
1354	if { [info exists _settings($_first${spec})] } {
1355	# Reset global setting with dataobj specific setting
1356	set _settings($spec) $_settings($_first${spec})
1357	}
1358	AdjustSetting $spec
1359	}
1360	}
1361
1362	#
1363	# AdjustSetting --
1364	#
1365	# Changes/updates a specific setting in the widget. There are
1366	# usually user-setable option. Commands are sent to the render
1367	# server.
1368	#
1369	itcl::body Rappture::VtkHeightmapViewer::AdjustSetting {what {value ""}} {
1370	if { $_beforeConnect } {
1371	return
1372	}
1373	switch -- $what {
1374	"-axisflymode" {
1375	set mode [$itk_component(axisflymode) value]
1376	set mode [$itk_component(axisflymode) translate $mode]
1377	set _settings($what) $mode
1378	SendCmd "axis flymode $mode"
1379	}
1380	"-axislabels" {
1381	set bool $_settings($what)
1382	SendCmd "axis labels all $bool"
1383	}
1384	"-axisminorticks" {
1385	set bool $_settings($what)
1386	SendCmd "axis minticks all $bool"
1387	}
1388	"-axisvisible" {
1389	set bool $_settings($what)
1390	SendCmd "axis visible all $bool"
1391	}
1392	"-background" {
1393	set bg [$itk_component(background) value]
1394	array set fgcolors {
1395	"black" "white"
1396	"white" "black"
1397	"grey" "black"
1398	}
1399	set fg $fgcolors($bg)
1400	configure -plotbackground $bg -plotforeground $fg
1401	$itk_component(view) delete "legend"
1402	SendCmd "screen bgcolor [Color2RGB $bg]"
1403	SendCmd "outline color [Color2RGB $fg]"
1404	SendCmd "axis color all [Color2RGB $fg]"
1405	DrawLegend
1406	}
1407	"-colormap" {
1408	set _changed($what) 1
1409	StartBufferingCommands
1410	set color [$itk_component(colormap) value]
1411	set _settings($what) $color
1412	if { $color == "none" } {
1413	if { $_settings(-colormapvisible) } {
1414	SendCmd "heightmap surface 0"
1415	set _settings(-colormapvisible) 0
1416	}
1417	} else {
1418	if { !$_settings(-colormapvisible) } {
1419	SendCmd "heightmap surface 1"
1420	set _settings(-colormapvisible) 1
1421	}
1422	SetCurrentColormap $color
1423	if {$_settings(-colormapdiscrete)} {
1424	set numColors [expr $_settings(-numisolines) + 1]
1425	SendCmd "colormap res $numColors $color"
1426	}
1427	}
1428	StopBufferingCommands
1429	EventuallyRequestLegend
1430	}
1431	"-colormapvisible" {
1432	set bool $_settings($what)
1433	SendCmd "heightmap surface $bool"
1434	}
1435	"-colormapdiscrete" {
1436	set bool $_settings($what)
1437	set numColors [expr $_settings(-numisolines) + 1]
1438	StartBufferingCommands
1439	if {$bool} {
1440	SendCmd "colormap res $numColors"
1441	# Discrete colormap requires preinterp on
1442	SendCmd "heightmap preinterp on"
1443	} else {
1444	SendCmd "colormap res default"
1445	# FIXME: add setting for preinterp (default on)
1446	SendCmd "heightmap preinterp on"
1447	}
1448	StopBufferingCommands
1449	EventuallyRequestLegend
1450	}
1451	"-edges" {
1452	set bool $_settings($what)
1453	SendCmd "heightmap edges $bool"
1454	}
1455	"-field" {
1456	set label [$itk_component(field) value]
1457	set fname [$itk_component(field) translate $label]
1458	set _settings($what) $fname
1459	if { [info exists _fields($fname)] } {
1460	foreach { label units components } $_fields($fname) break
1461	if { $components > 1 } {
1462	set _colorMode vmag
1463	} else {
1464	set _colorMode scalar
1465	}
1466	set _curFldName $fname
1467	set _curFldLabel $label
1468	} else {
1469	puts stderr "unknown field \"$fname\""
1470	return
1471	}
1472	set label ""
1473	if { $_first != "" } {
1474	set label [$_first hints label]
1475	}
1476	if { $label == "" } {
1477	if { [string match "component*" $_curFldName] } {
1478	set label Z
1479	} else {
1480	set label $_curFldLabel
1481	}
1482	}
1483	# May be a space in the axis label.
1484	SendCmd [list axis name z $label]
1485
1486	set units ""
1487	if { $_first != "" } {
1488	set units [$_first hints units]
1489	}
1490	if { $units == "" } {
1491	if { $_first != "" && [$_first hints zunits] != "" } {
1492	set units [$_first hints zunits]
1493	} elseif { [info exists _fields($_curFldName)] } {
1494	set units [lindex $_fields($_curFldName) 1]
1495	}
1496	}
1497	# May be a space in the axis units.
1498	SendCmd [list axis units z $units]
1499	# Get the new limits because the field changed.
1500	ResetAxes
1501	SendCmd "dataset scalar $_curFldName"
1502	SendCmd "heightmap colormode scalar $_curFldName"
1503	Zoom reset
1504	UpdateContourList
1505	DrawLegend
1506	}
1507	"-heightmapscale" {
1508	if { $_settings(-isheightmap) } {
1509	set scale [GetHeightmapScale]
1510	# Have to set the datasets individually because we are
1511	# tracking them in _comp2scale.
1512	foreach dataset [CurrentDatasets -all] {
1513	SendCmd "heightmap heightscale $scale $dataset"
1514	set _comp2scale($dataset) $scale
1515	}
1516	ResetAxes
1517	}
1518	}
1519	"-isheightmap" {
1520	set bool $_settings($what)
1521	set c $itk_component(view)
1522	StartBufferingCommands
1523	# Fix heightmap scale: 0 for contours, 1 for heightmaps.
1524	if { $bool } {
1525	set _settings(-heightmapscale) 50
1526	set _settings(-opacity) $_settings(-saveopacity)
1527	set _settings(-lighting) $_settings(-savelighting)
1528	set _settings(-outline) 0
1529	} else {
1530	set _settings(-heightmapscale) 0
1531	set _settings(-lighting) 0
1532	set _settings(-opacity) 100
1533	set _settings(-outline) $_settings(-saveoutline)
1534	}
1535	InitSettings -lighting -opacity -outline
1536	set scale [GetHeightmapScale]
1537	# Have to set the datasets individually because we are
1538	# tracking them in _comp2scale.
1539	foreach dataset [CurrentDatasets -all] {
1540	SendCmd "heightmap heightscale $scale $dataset"
1541	set _comp2scale($dataset) $scale
1542	}
1543	if { $bool } {
1544	$itk_component(lighting) configure -state normal
1545	$itk_component(opacity) configure -state normal
1546	$itk_component(scale) configure -state normal
1547	$itk_component(opacity_l) configure -state normal
1548	$itk_component(scale_l) configure -state normal
1549	$itk_component(outline) configure -state disabled
1550	if {$_view(-ortho)} {
1551	SendCmd "camera mode ortho"
1552	} else {
1553	SendCmd "camera mode persp"
1554	}
1555	} else {
1556	$itk_component(lighting) configure -state disabled
1557	$itk_component(opacity) configure -state disabled
1558	$itk_component(scale) configure -state disabled
1559	$itk_component(opacity_l) configure -state disabled
1560	$itk_component(scale_l) configure -state disabled
1561	$itk_component(outline) configure -state normal
1562	SendCmd "camera mode image"
1563	}
1564	if {$_settings(-stretchtofit)} {
1565	if {$scale == 0} {
1566	SendCmd "camera aspect window"
1567	} else {
1568	SendCmd "camera aspect square"
1569	}
1570	}
1571	ResetAxes
1572	if { $bool } {
1573	set q [ViewToQuaternion]
1574	$_arcball quaternion $q
1575	SendCmd "camera orient $q"
1576	} else {
1577	bind $c <ButtonPress-1> {}
1578	bind $c <B1-Motion> {}
1579	bind $c <ButtonRelease-1> {}
1580	}
1581	Zoom reset
1582	# Fix the mouse bindings for rotation/panning and the
1583	# camera mode. Ideally we'd create a bindtag for these.
1584	if { $bool } {
1585	# Bindings for rotation via mouse
1586	bind $c <ButtonPress-1> \
1587	[itcl::code $this Rotate click %x %y]
1588	bind $c <B1-Motion> \
1589	[itcl::code $this Rotate drag %x %y]
1590	bind $c <ButtonRelease-1> \
1591	[itcl::code $this Rotate release %x %y]
1592	}
1593	StopBufferingCommands
1594	}
1595	"-isolinecolor" {
1596	set color [$itk_component(isolinecolor) value]
1597	if { $color == "none" } {
1598	if { $_settings(-isolinesvisible) } {
1599	SendCmd "heightmap isolines 0"
1600	set _settings(-isolinesvisible) 0
1601	}
1602	} else {
1603	if { !$_settings(-isolinesvisible) } {
1604	SendCmd "heightmap isolines 1"
1605	set _settings(-isolinesvisible) 1
1606	}
1607	SendCmd "heightmap isolinecolor [Color2RGB $color]"
1608	}
1609	DrawLegend
1610	}
1611	"-isolinesvisible" {
1612	set bool $_settings($what)
1613	SendCmd "heightmap isolines $bool"
1614	DrawLegend
1615	}
1616	"-legendvisible" {
1617	if { !$_settings($what) } {
1618	$itk_component(view) delete legend
1619	}
1620	DrawLegend
1621	}
1622	"-lighting" {
1623	if { $_settings(-isheightmap) } {
1624	set _settings(-savelighting) $_settings($what)
1625	set bool $_settings($what)
1626	SendCmd "heightmap lighting $bool"
1627	} else {
1628	SendCmd "heightmap lighting 0"
1629	}
1630	}
1631	"-numisolines" {
1632	set _settings($what) [$itk_component(numisolines) value]
1633	set _currentNumIsolines $_settings($what)
1634	UpdateContourList
1635	set _changed($what) 1
1636	SendCmd "heightmap contourlist [list $_contourList]"
1637	if {$_settings(-colormapdiscrete)} {
1638	set numColors [expr $_settings($what) + 1]
1639	SendCmd "colormap res $numColors"
1640	EventuallyRequestLegend
1641	} else {
1642	DrawLegend
1643	}
1644	}
1645	"-opacity" {
1646	set _changed($what) 1
1647	set val [expr $_settings($what) * 0.01]
1648	if { $_settings(-isheightmap) } {
1649	set _settings(-saveopacity) $_settings($what)
1650	SendCmd "heightmap opacity $val"
1651	} else {
1652	SendCmd "heightmap opacity 1.0"
1653	}
1654	}
1655	"-outline" {
1656	if { $_settings(-isheightmap) } {
1657	SendCmd "outline visible 0"
1658	} else {
1659	set _settings(-saveoutline) $_settings($what)
1660	set bool $_settings($what)
1661	SendCmd "outline visible $bool"
1662	}
1663	}
1664	"-stretchtofit" {
1665	set bool $_settings($what)
1666	if { $bool } {
1667	set heightScale [GetHeightmapScale]
1668	if {$heightScale == 0} {
1669	SendCmd "camera aspect window"
1670	} else {
1671	SendCmd "camera aspect square"
1672	}
1673	} else {
1674	SendCmd "camera aspect native"
1675	}
1676	Zoom reset
1677	}
1678	"-wireframe" {
1679	set bool $_settings($what)
1680	SendCmd "heightmap wireframe $bool"
1681	}
1682	"-xgrid" - "-ygrid" - "-zgrid" {
1683	set axis [string tolower [string range $what 1 1]]
1684	set bool $_settings($what)
1685	SendCmd "axis grid $axis $bool"
1686	}
1687	default {
1688	error "don't know how to fix $what"
1689	}
1690	}
1691	}
1692
1693	#
1694	# RequestLegend --
1695	#
1696	# Request a new legend from the server. The size of the legend
1697	# is determined from the height of the canvas.
1698	#
1699	# This should be called when
1700	# 1. A new current colormap is set.
1701	# 2. Window is resized.
1702	# 3. The limits of the data have changed. (Just need a redraw).
1703	# 4. Number of isolines have changed. (Just need a redraw).
1704	# 5. Legend becomes visible (Just need a redraw).
1705	#
1706	itcl::body Rappture::VtkHeightmapViewer::RequestLegend {} {
1707	set _legendPending 0
1708	set font "Arial 8"
1709	set w 12
1710	set lineht [font metrics $font -linespace]
1711	# color ramp height = (canvas height) - (min and max value lines) - 2
1712	set h [expr {$_height - 2 * ($lineht + 2)}]
1713	set _legendHeight $h
1714
1715	set fname $_curFldName
1716	if { [string match "component*" $fname] } {
1717	set title ""
1718	} else {
1719	if { [info exists _fields($fname)] } {
1720	foreach { title units } $_fields($fname) break
1721	if { $units != "" } {
1722	set title [format "%s (%s)" $title $units]
1723	}
1724	} else {
1725	set title $fname
1726	}
1727	}
1728	# If there's a title too, substract one more line
1729	if { $title != "" } {
1730	incr h -$lineht
1731	}
1732	if { $h < 1 } {
1733	return
1734	}
1735	# Set the legend on the first heightmap dataset.
1736	if { $_currentColormap != "" } {
1737	set cmap $_currentColormap
1738	if { ![info exists _colormaps($cmap)] } {
1739	BuildColormap $cmap
1740	set _colormaps($cmap) 1
1741	}
1742	#SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1743	SendCmd "legend2 $cmap $w $h"
1744	}
1745	}
1746
1747	#
1748	# ResetAxes --
1749	#
1750	# Set axis z bounds and range
1751	#
1752	itcl::body Rappture::VtkHeightmapViewer::ResetAxes {} {
1753	if { ![info exists _limits($_curFldName)]} {
1754	SendCmd "dataset maprange all"
1755	SendCmd "axis autorange z on"
1756	SendCmd "axis autobounds z on"
1757	return
1758	}
1759	foreach { xmin xmax } $_limits(x) break
1760	foreach { ymin ymax } $_limits(y) break
1761	foreach { vmin vmax } $_limits($_curFldName) break
1762
1763	global tcl_precision
1764	set tcl_precision 17
1765	set xr [expr $xmax - $xmin]
1766	set yr [expr $ymax - $ymin]
1767	set vr [expr $vmax - $vmin]
1768	set r [expr ($yr > $xr) ? $yr : $xr]
1769	if { $vr < 1.0e-17 } {
1770	set dataScale 1.0
1771	} else {
1772	set dataScale [expr $r / $vr]
1773	}
1774	set heightScale [GetHeightmapScale]
1775	set bmin [expr $heightScale * $dataScale * $vmin]
1776	set bmax [expr $heightScale * $dataScale * $vmax]
1777	if {$heightScale > 0} {
1778	set zpos [expr - $bmin]
1779	SendCmd "heightmap pos 0 0 $zpos"
1780	} else {
1781	SendCmd "heightmap pos 0 0 0"
1782	}
1783	set bmax [expr $bmax - $bmin]
1784	set bmin 0
1785	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1786	SendCmd "axis bounds z $bmin $bmax"
1787	SendCmd "axis range z $_limits($_curFldName)"
1788	}
1789
1790	#
1791	# SetCurrentColormap --
1792	#
1793	itcl::body Rappture::VtkHeightmapViewer::SetCurrentColormap { name } {
1794	# Keep track of the colormaps that we build.
1795	if { $name != "none" && ![info exists _colormaps($name)] } {
1796	BuildColormap $name
1797	set _colormaps($name) 1
1798	}
1799	set _currentColormap $name
1800	SendCmd "heightmap colormap $_currentColormap"
1801	}
1802
1803	#
1804	# BuildColormap --
1805	#
1806	# Build the designated colormap on the server.
1807	#
1808	itcl::body Rappture::VtkHeightmapViewer::BuildColormap { name } {
1809	set cmap [ColorsToColormap $name]
1810	if { [llength $cmap] == 0 } {
1811	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1812	}
1813	set wmap "0.0 1.0 1.0 1.0"
1814	SendCmd "colormap add $name { $cmap } { $wmap }"
1815	}
1816
1817	# ----------------------------------------------------------------------
1818	# CONFIGURATION OPTION: -mode
1819	# ----------------------------------------------------------------------
1820	itcl::configbody Rappture::VtkHeightmapViewer::mode {
1821	switch -- $itk_option(-mode) {
1822	"heightmap" {
1823	set _settings(-isheightmap) 1
1824	}
1825	"contour" {
1826	set _settings(-isheightmap) 0
1827	}
1828	default {
1829	error "unknown mode settings \"$itk_option(-mode)\""
1830	}
1831	}
1832	if { !$_reset } {
1833	AdjustSetting -isheightmap
1834	}
1835	}
1836
1837	# ----------------------------------------------------------------------
1838	# CONFIGURATION OPTION: -plotbackground
1839	# ----------------------------------------------------------------------
1840	itcl::configbody Rappture::VtkHeightmapViewer::plotbackground {
1841	if { [isconnected] } {
1842	set rgb [Color2RGB $itk_option(-plotbackground)]
1843	if { !$_reset } {
1844	SendCmd "screen bgcolor $rgb"
1845	}
1846	$itk_component(view) configure -background $itk_option(-plotbackground)
1847	}
1848	}
1849
1850	# ----------------------------------------------------------------------
1851	# CONFIGURATION OPTION: -plotforeground
1852	# ----------------------------------------------------------------------
1853	itcl::configbody Rappture::VtkHeightmapViewer::plotforeground {
1854	if { [isconnected] } {
1855	set rgb [Color2RGB $itk_option(-plotforeground)]
1856	if { !$_reset } {
1857	SendCmd "axis color all $rgb"
1858	SendCmd "outline color $rgb"
1859	}
1860	}
1861	}
1862
1863	itcl::body Rappture::VtkHeightmapViewer::BuildContourTab {} {
1864
1865	set fg [option get $itk_component(hull) font Font]
1866	#set bfg [option get $itk_component(hull) boldFont Font]
1867
1868	set inner [$itk_component(main) insert end \
1869	-title "Contour/Surface Settings" \
1870	-icon [Rappture::icon contour2]]
1871	$inner configure -borderwidth 4
1872
1873	checkbutton $inner.legend \
1874	-text "Legend" \
1875	-variable [itcl::scope _settings(-legendvisible)] \
1876	-command [itcl::code $this AdjustSetting -legendvisible] \
1877	-font "Arial 9"
1878
1879	checkbutton $inner.wireframe \
1880	-text "Wireframe" \
1881	-variable [itcl::scope _settings(-wireframe)] \
1882	-command [itcl::code $this AdjustSetting -wireframe] \
1883	-font "Arial 9"
1884
1885	itk_component add lighting {
1886	checkbutton $inner.lighting \
1887	-text "Enable Lighting" \
1888	-variable [itcl::scope _settings(-lighting)] \
1889	-command [itcl::code $this AdjustSetting -lighting] \
1890	-font "Arial 9"
1891	} {
1892	ignore -font
1893	}
1894	checkbutton $inner.edges \
1895	-text "Edges" \
1896	-variable [itcl::scope _settings(-edges)] \
1897	-command [itcl::code $this AdjustSetting -edges] \
1898	-font "Arial 9"
1899
1900	itk_component add outline {
1901	checkbutton $inner.outline \
1902	-text "Outline" \
1903	-variable [itcl::scope _settings(-outline)] \
1904	-command [itcl::code $this AdjustSetting -outline] \
1905	-font "Arial 9"
1906	} {
1907	ignore -font
1908	}
1909	checkbutton $inner.stretch \
1910	-text "Stretch to fit" \
1911	-variable [itcl::scope _settings(-stretchtofit)] \
1912	-command [itcl::code $this AdjustSetting -stretchtofit] \
1913	-font "Arial 9"
1914
1915	checkbutton $inner.isolines \
1916	-text "Isolines" \
1917	-variable [itcl::scope _settings(-isolinesvisible)] \
1918	-command [itcl::code $this AdjustSetting -isolinesvisible] \
1919	-font "Arial 9"
1920
1921	checkbutton $inner.colormapDiscrete \
1922	-text "Discrete Colormap" \
1923	-variable [itcl::scope _settings(-colormapdiscrete)] \
1924	-command [itcl::code $this AdjustSetting -colormapdiscrete] \
1925	-font "Arial 9"
1926
1927	itk_component add field_l {
1928	label $inner.field_l -text "Field" -font "Arial 9"
1929	} {
1930	ignore -font
1931	}
1932	itk_component add field {
1933	Rappture::Combobox $inner.field -width 10 -editable no
1934	}
1935	bind $inner.field <<Value>> \
1936	[itcl::code $this AdjustSetting -field]
1937
1938	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1939	itk_component add colormap {
1940	Rappture::Combobox $inner.colormap -width 10 -editable no
1941	}
1942	$inner.colormap choices insert end [GetColormapList -includeNone]
1943	$itk_component(colormap) value $_settings(-colormap)
1944	bind $inner.colormap <<Value>> \
1945	[itcl::code $this AdjustSetting -colormap]
1946
1947	label $inner.isolinecolor_l -text "Isolines Color" -font "Arial 9"
1948	itk_component add isolinecolor {
1949	Rappture::Combobox $inner.isolinecolor -width 10 -editable no
1950	}
1951	$inner.isolinecolor choices insert end \
1952	"black" "black" \
1953	"blue" "blue" \
1954	"cyan" "cyan" \
1955	"green" "green" \
1956	"grey" "grey" \
1957	"magenta" "magenta" \
1958	"orange" "orange" \
1959	"red" "red" \
1960	"white" "white" \
1961	"none" "none"
1962
1963	$itk_component(isolinecolor) value $_settings(-isolinecolor)
1964	bind $inner.isolinecolor <<Value>> \
1965	[itcl::code $this AdjustSetting -isolinecolor]
1966
1967	label $inner.background_l -text "Background Color" -font "Arial 9"
1968	itk_component add background {
1969	Rappture::Combobox $inner.background -width 10 -editable no
1970	}
1971	$inner.background choices insert end \
1972	"black" "black" \
1973	"white" "white" \
1974	"grey" "grey"
1975
1976	$itk_component(background) value "white"
1977	bind $inner.background <<Value>> \
1978	[itcl::code $this AdjustSetting -background]
1979
1980	itk_component add opacity_l {
1981	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1982	} {
1983	ignore -font
1984	}
1985	itk_component add opacity {
1986	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1987	-variable [itcl::scope _settings(-opacity)] \
1988	-showvalue off \
1989	-command [itcl::code $this AdjustSetting -opacity]
1990	}
1991	itk_component add scale_l {
1992	label $inner.scale_l -text "Scale" -font "Arial 9"
1993	} {
1994	ignore -font
1995	}
1996	itk_component add scale {
1997	::scale $inner.scale -from 0 -to 100 -orient horizontal \
1998	-variable [itcl::scope _settings(-heightmapscale)] \
1999	-showvalue off \
2000	-command [itcl::code $this AdjustSetting -heightmapscale]
2001	}
2002	label $inner.numisolines_l -text "Number of Isolines" -font "Arial 9"
2003	itk_component add numisolines {
2004	Rappture::Spinint $inner.numisolines \
2005	-min 0 -max 50 -font "arial 9"
2006	}
2007	$itk_component(numisolines) value $_settings(-numisolines)
2008	bind $itk_component(numisolines) <<Value>> \
2009	[itcl::code $this AdjustSetting -numisolines]
2010
2011	frame $inner.separator1 -height 2 -relief sunken -bd 1
2012	frame $inner.separator2 -height 2 -relief sunken -bd 1
2013
2014	blt::table $inner \
2015	0,0 $inner.field_l -anchor w -pady 2 \
2016	0,1 $inner.field -anchor w -pady 2 -fill x \
2017	1,0 $inner.colormap_l -anchor w -pady 2 \
2018	1,1 $inner.colormap -anchor w -pady 2 -fill x \
2019	2,0 $inner.isolinecolor_l -anchor w -pady 2 \
2020	2,1 $inner.isolinecolor -anchor w -pady 2 -fill x \
2021	3,0 $inner.background_l -anchor w -pady 2 \
2022	3,1 $inner.background -anchor w -pady 2 -fill x \
2023	4,0 $inner.numisolines_l -anchor w -pady 2 \
2024	4,1 $inner.numisolines -anchor w -pady 2 \
2025	5,0 $inner.stretch -anchor w -pady 2 -cspan 2 \
2026	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
2027	7,0 $inner.legend -anchor w -pady 2 -cspan 2 \
2028	8,0 $inner.colormapDiscrete -anchor w -pady 2 -cspan 2 \
2029	9,0 $inner.wireframe -anchor w -pady 2 -cspan 2\
2030	10,0 $inner.isolines -anchor w -pady 2 -cspan 2 \
2031	11,0 $inner.separator1 -padx 2 -fill x -cspan 2 \
2032	12,0 $inner.outline -anchor w -pady 2 -cspan 2 \
2033	13,0 $inner.separator2 -padx 2 -fill x -cspan 2 \
2034	14,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
2035	15,0 $inner.opacity_l -anchor w -pady 2 \
2036	15,1 $inner.opacity -fill x -pady 2 \
2037	16,0 $inner.scale_l -anchor w -pady 2 -cspan 2 \
2038	16,1 $inner.scale -fill x -pady 2 -cspan 2 \
2039
2040	blt::table configure $inner r* c* -resize none
2041	blt::table configure $inner r17 c1 -resize expand
2042	}
2043
2044	itcl::body Rappture::VtkHeightmapViewer::BuildAxisTab {} {
2045
2046	set fg [option get $itk_component(hull) font Font]
2047	#set bfg [option get $itk_component(hull) boldFont Font]
2048
2049	set inner [$itk_component(main) insert end \
2050	-title "Axis Settings" \
2051	-icon [Rappture::icon axis2]]
2052	$inner configure -borderwidth 4
2053
2054	checkbutton $inner.visible \
2055	-text "Axes" \
2056	-variable [itcl::scope _settings(-axisvisible)] \
2057	-command [itcl::code $this AdjustSetting -axisvisible] \
2058	-font "Arial 9"
2059	checkbutton $inner.labels \
2060	-text "Axis Labels" \
2061	-variable [itcl::scope _settings(-axislabels)] \
2062	-command [itcl::code $this AdjustSetting -axislabels] \
2063	-font "Arial 9"
2064	label $inner.grid_l -text "Grid" -font "Arial 9"
2065	checkbutton $inner.xgrid \
2066	-text "X" \
2067	-variable [itcl::scope _settings(-xgrid)] \
2068	-command [itcl::code $this AdjustSetting -xgrid] \
2069	-font "Arial 9"
2070	checkbutton $inner.ygrid \
2071	-text "Y" \
2072	-variable [itcl::scope _settings(-ygrid)] \
2073	-command [itcl::code $this AdjustSetting -ygrid] \
2074	-font "Arial 9"
2075	checkbutton $inner.zgrid \
2076	-text "Z" \
2077	-variable [itcl::scope _settings(-zgrid)] \
2078	-command [itcl::code $this AdjustSetting -zgrid] \
2079	-font "Arial 9"
2080	checkbutton $inner.minorticks \
2081	-text "Minor Ticks" \
2082	-variable [itcl::scope _settings(-axisminorticks)] \
2083	-command [itcl::code $this AdjustSetting -axisminorticks] \
2084	-font "Arial 9"
2085
2086	label $inner.mode_l -text "Mode" -font "Arial 9"
2087
2088	itk_component add axisflymode {
2089	Rappture::Combobox $inner.mode -width 10 -editable no
2090	}
2091	$inner.mode choices insert end \
2092	"static_triad" "static" \
2093	"closest_triad" "closest" \
2094	"furthest_triad" "farthest" \
2095	"outer_edges" "outer"
2096	$itk_component(axisflymode) value $_settings(-axisflymode)
2097	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axisflymode]
2098
2099	blt::table $inner \
2100	0,0 $inner.visible -anchor w -cspan 4 \
2101	1,0 $inner.labels -anchor w -cspan 4 \
2102	2,0 $inner.minorticks -anchor w -cspan 4 \
2103	4,0 $inner.grid_l -anchor w \
2104	4,1 $inner.xgrid -anchor w \
2105	4,2 $inner.ygrid -anchor w \
2106	4,3 $inner.zgrid -anchor w \
2107	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
2108	5,1 $inner.mode -fill x -cspan 3
2109
2110	blt::table configure $inner r* c* -resize none
2111	blt::table configure $inner r7 c6 -resize expand
2112	blt::table configure $inner r3 -height 0.125i
2113	}
2114
2115	itcl::body Rappture::VtkHeightmapViewer::BuildCameraTab {} {
2116	set inner [$itk_component(main) insert end \
2117	-title "Camera Settings" \
2118	-icon [Rappture::icon camera]]
2119	$inner configure -borderwidth 4
2120
2121	label $inner.view_l -text "view" -font "Arial 9"
2122	set f [frame $inner.view]
2123	foreach side { front back left right top bottom } {
2124	button $f.$side -image [Rappture::icon view$side] \
2125	-command [itcl::code $this SetOrientation $side]
2126	Rappture::Tooltip::for $f.$side "Change the view to $side"
2127	pack $f.$side -side left
2128	}
2129
2130	blt::table $inner \
2131	0,0 $inner.view_l -anchor e -pady 2 \
2132	0,1 $inner.view -anchor w -pady 2
2133	blt::table configure $inner r0 -resize none
2134
2135	set labels { qx qy qz qw xpan ypan zoom }
2136	set row 1
2137	foreach tag $labels {
2138	label $inner.${tag}label -text $tag -font "Arial 9"
2139	entry $inner.${tag} -font "Arial 9" -bg white \
2140	-textvariable [itcl::scope _view(-$tag)]
2141	bind $inner.${tag} <Return> \
2142	[itcl::code $this camera set -${tag}]
2143	bind $inner.${tag} <KP_Enter> \
2144	[itcl::code $this camera set -${tag}]
2145	blt::table $inner \
2146	$row,0 $inner.${tag}label -anchor e -pady 2 \
2147	$row,1 $inner.${tag} -anchor w -pady 2
2148	blt::table configure $inner r$row -resize none
2149	incr row
2150	}
2151	checkbutton $inner.ortho \
2152	-text "Orthographic Projection" \
2153	-variable [itcl::scope _view(-ortho)] \
2154	-command [itcl::code $this camera set -ortho] \
2155	-font "Arial 9"
2156	blt::table $inner \
2157	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2158	blt::table configure $inner r$row -resize none
2159	incr row
2160
2161	blt::table configure $inner c* -resize none
2162	blt::table configure $inner c2 -resize expand
2163	blt::table configure $inner r$row -resize expand
2164	}
2165
2166	#
2167	# camera --
2168	#
2169	itcl::body Rappture::VtkHeightmapViewer::camera {option args} {
2170	switch -- $option {
2171	"show" {
2172	puts [array get _view]
2173	}
2174	"set" {
2175	set what [lindex $args 0]
2176	set x $_view($what)
2177	set code [catch { string is double $x } result]
2178	if { $code != 0 \|\| !$result } {
2179	return
2180	}
2181	switch -- $what {
2182	"-ortho" {
2183	if {$_view($what)} {
2184	SendCmd "camera mode ortho"
2185	} else {
2186	SendCmd "camera mode persp"
2187	}
2188	}
2189	"-xpan" - "-ypan" {
2190	PanCamera
2191	}
2192	"-qx" - "-qy" - "-qz" - "-qw" {
2193	set q [ViewToQuaternion]
2194	$_arcball quaternion $q
2195	EventuallyRotate $q
2196	}
2197	"-zoom" {
2198	SendCmd "camera zoom $_view($what)"
2199	}
2200	}
2201	}
2202	}
2203	}
2204
2205	itcl::body Rappture::VtkHeightmapViewer::GetVtkData { args } {
2206	set bytes ""
2207	foreach dataobj [get] {
2208	foreach comp [$dataobj components] {
2209	set tag $dataobj-$comp
2210	set contents [$dataobj vtkdata $comp]
2211	append bytes "$contents\n"
2212	}
2213	}
2214	return [list .vtk $bytes]
2215	}
2216
2217	itcl::body Rappture::VtkHeightmapViewer::GetImage { args } {
2218	if { [image width $_image(download)] > 0 &&
2219	[image height $_image(download)] > 0 } {
2220	set bytes [$_image(download) data -format "jpeg -quality 100"]
2221	set bytes [Rappture::encoding::decode -as b64 $bytes]
2222	return [list .jpg $bytes]
2223	}
2224	return ""
2225	}
2226
2227	itcl::body Rappture::VtkHeightmapViewer::BuildDownloadPopup { popup command } {
2228	Rappture::Balloon $popup \
2229	-title "[Rappture::filexfer::label downloadWord] as..."
2230	set inner [$popup component inner]
2231	label $inner.summary -text "" -anchor w
2232	radiobutton $inner.vtk_button -text "VTK data file" \
2233	-variable [itcl::scope _downloadPopup(format)] \
2234	-font "Arial 9 " \
2235	-value vtk
2236	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2237	radiobutton $inner.image_button -text "Image File" \
2238	-variable [itcl::scope _downloadPopup(format)] \
2239	-font "Arial 9 " \
2240	-value image
2241	Rappture::Tooltip::for $inner.image_button \
2242	"Save as digital image."
2243
2244	button $inner.ok -text "Save" \
2245	-highlightthickness 0 -pady 2 -padx 3 \
2246	-command $command \
2247	-compound left \
2248	-image [Rappture::icon download]
2249
2250	button $inner.cancel -text "Cancel" \
2251	-highlightthickness 0 -pady 2 -padx 3 \
2252	-command [list $popup deactivate] \
2253	-compound left \
2254	-image [Rappture::icon cancel]
2255
2256	blt::table $inner \
2257	0,0 $inner.summary -cspan 2 \
2258	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2259	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2260	4,1 $inner.cancel -width .9i -fill y \
2261	4,0 $inner.ok -padx 2 -width .9i -fill y
2262	blt::table configure $inner r3 -height 4
2263	blt::table configure $inner r4 -pady 4
2264	raise $inner.image_button
2265	$inner.vtk_button invoke
2266	return $inner
2267	}
2268
2269	#
2270	# SetObjectStyle --
2271	#
2272	# Set the style of the heightmap/contour object. This gets calls
2273	# for each dataset once as it is loaded. It can overridden by
2274	# the user controls.
2275	#
2276	#
2277	itcl::body Rappture::VtkHeightmapViewer::SetObjectStyle { dataobj comp } {
2278	# Parse style string.
2279	set tag $dataobj-$comp
2280	array set style {
2281	-color BCGYR
2282	-levels 10
2283	-opacity 1.0
2284	}
2285	set stylelist [$dataobj style $comp]
2286	if { $stylelist != "" } {
2287	array set style $stylelist
2288	}
2289	# This is too complicated. We want to set the colormap, number of
2290	# isolines and opacity for the dataset. They can be the default values,
2291	# the style hints loaded with the dataset, or set by user controls. As
2292	# datasets get loaded, they first use the defaults that are overidden
2293	# by the style hints. If the user changes the global controls, then that
2294	# overrides everything else. I don't know what it means when global
2295	# controls are specified as style hints by each dataset. It complicates
2296	# the code to handle aberrant cases.
2297
2298	if { $_changed(-opacity) } {
2299	set style(-opacity) [expr $_settings(-opacity) * 0.01]
2300	}
2301	if { $_changed(-numisolines) } {
2302	set style(-levels) $_settings(-numisolines)
2303	}
2304	if { $_changed(-colormap) } {
2305	set style(-color) $_settings(-colormap)
2306	}
2307	if { $_currentColormap == "" } {
2308	$itk_component(colormap) value $style(-color)
2309	}
2310	if { [info exists style(-stretchtofit)] } {
2311	set _settings(-stretchtofit) $style(-stretchtofit)
2312	AdjustSetting -stretchtofit
2313	}
2314	if { $_currentNumIsolines != $style(-levels) } {
2315	set _currentNumIsolines $style(-levels)
2316	set _settings(-numisolines) $_currentNumIsolines
2317	$itk_component(numisolines) value $_currentNumIsolines
2318	UpdateContourList
2319	DrawLegend
2320	}
2321	SendCmd "outline add $tag"
2322	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2323	SendCmd "outline visible $_settings(-outline) $tag"
2324	set scale [GetHeightmapScale]
2325	SendCmd "[list heightmap add contourlist $_contourList $scale $tag]"
2326	set _comp2scale($tag) $_settings(-heightmapscale)
2327	SendCmd "heightmap edges $_settings(-edges) $tag"
2328	SendCmd "heightmap wireframe $_settings(-wireframe) $tag"
2329	SetCurrentColormap $style(-color)
2330	set color [$itk_component(isolinecolor) value]
2331	SendCmd "heightmap isolinecolor [Color2RGB $color] $tag"
2332	SendCmd "heightmap lighting $_settings(-isheightmap) $tag"
2333	SendCmd "heightmap isolines $_settings(-isolinesvisible) $tag"
2334	SendCmd "heightmap surface $_settings(-colormapvisible) $tag"
2335	SendCmd "heightmap opacity $style(-opacity) $tag"
2336	set _settings(-opacity) [expr $style(-opacity) * 100.0]
2337	}
2338
2339	itcl::body Rappture::VtkHeightmapViewer::IsValidObject { dataobj } {
2340	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2341	return 0
2342	}
2343	return 1
2344	}
2345
2346	# ----------------------------------------------------------------------
2347	# USAGE: ReceiveLegend <colormap> <title> <min> <max> <size>
2348	#
2349	# Invoked automatically whenever the "legend" command comes in from
2350	# the rendering server. Indicates that binary image data with the
2351	# specified <size> will follow.
2352	# ----------------------------------------------------------------------
2353	itcl::body Rappture::VtkHeightmapViewer::ReceiveLegend { colormap title min max size } {
2354	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2355	if { [isconnected] } {
2356	set bytes [ReceiveBytes $size]
2357	if { ![info exists _image(legend)] } {
2358	set _image(legend) [image create photo]
2359	}
2360	$_image(legend) configure -data $bytes
2361	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2362	if { [catch {DrawLegend} errs] != 0 } {
2363	global errorInfo
2364	puts stderr "errs=$errs errorInfo=$errorInfo"
2365	}
2366	}
2367	}
2368
2369	#
2370	# DrawLegend --
2371	#
2372	# Draws the legend in the own canvas on the right side of the plot area.
2373	#
2374	itcl::body Rappture::VtkHeightmapViewer::DrawLegend {} {
2375	set fname $_curFldName
2376	set c $itk_component(view)
2377	set w [winfo width $c]
2378	set h [winfo height $c]
2379	set font "Arial 8"
2380	set lineht [font metrics $font -linespace]
2381
2382	if { [string match "component*" $fname] } {
2383	set title ""
2384	} else {
2385	if { [info exists _fields($fname)] } {
2386	foreach { title units } $_fields($fname) break
2387	if { $units != "" } {
2388	set title [format "%s (%s)" $title $units]
2389	}
2390	} else {
2391	set title $fname
2392	}
2393	}
2394	set x [expr $w - 2]
2395	if { !$_settings(-legendvisible) } {
2396	$c delete legend
2397	return
2398	}
2399	if { [$c find withtag "legend"] == "" } {
2400	set y 2
2401	# If there's a legend title, create a text item for the title.
2402	$c create text $x $y \
2403	-anchor ne \
2404	-fill $itk_option(-plotforeground) -tags "title legend" \
2405	-font $font
2406	if { $title != "" } {
2407	incr y $lineht
2408	}
2409	$c create text $x $y \
2410	-anchor ne \
2411	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2412	-font $font
2413	incr y $lineht
2414	$c create image $x $y \
2415	-anchor ne \
2416	-image $_image(legend) -tags "colormap legend"
2417	$c create rectangle $x $y 1 1 \
2418	-fill "" -outline "" -tags "sensor legend"
2419	$c create text $x [expr {$h-2}] \
2420	-anchor se \
2421	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2422	-font $font
2423	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2424	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2425	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2426	}
2427	$c delete isoline
2428	set x2 $x
2429	set iw [image width $_image(legend)]
2430	set ih [image height $_image(legend)]
2431	set x1 [expr $x2 - ($iw*12)/10]
2432	set color [$itk_component(isolinecolor) value]
2433
2434	# Draw the isolines on the legend.
2435	array unset _isolines
2436	if { $color != "none" && [info exists _limits($_curFldName)] &&
2437	$_settings(-isolinesvisible) && $_currentNumIsolines > 0 } {
2438
2439	foreach { vmin vmax } $_limits($_curFldName) break
2440	set range [expr double($vmax - $vmin)]
2441	if { $range <= 0.0 } {
2442	set range 1.0; # Min is greater or equal to max.
2443	}
2444	set tags "isoline legend"
2445	set offset [expr 2 + $lineht]
2446	if { $title != "" } {
2447	incr offset $lineht
2448	}
2449	foreach value $_contourList {
2450	set norm [expr 1.0 - (($value - $vmin) / $range)]
2451	set y1 [expr int(round(($norm * $ih) + $offset))]
2452	for { set off 0 } { $off < 3 } { incr off } {
2453	set _isolines([expr $y1 + $off]) $value
2454	set _isolines([expr $y1 - $off]) $value
2455	}
2456	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2457	}
2458	}
2459
2460	$c bind title <ButtonPress> [itcl::code $this Combo post]
2461	$c bind title <Enter> [itcl::code $this Combo activate]
2462	$c bind title <Leave> [itcl::code $this Combo deactivate]
2463	# Reset the item coordinates according the current size of the plot.
2464	if { [info exists _limits($_curFldName)] } {
2465	foreach { vmin vmax } $_limits($_curFldName) break
2466	$c itemconfigure vmin -text [format %g $vmin]
2467	$c itemconfigure vmax -text [format %g $vmax]
2468	}
2469	set y 2
2470	# If there's a legend title, move the title to the correct position
2471	if { $title != "" } {
2472	$c itemconfigure title -text $title
2473	$c coords title $x $y
2474	incr y $lineht
2475	}
2476	$c coords vmax $x $y
2477	incr y $lineht
2478	$c coords colormap $x $y
2479	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2480	$c raise sensor
2481	$c coords vmin $x [expr {$h - 2}]
2482	}
2483
2484	#
2485	# EnterLegend --
2486	#
2487	itcl::body Rappture::VtkHeightmapViewer::EnterLegend { x y } {
2488	SetLegendTip $x $y
2489	}
2490
2491	#
2492	# MotionLegend --
2493	#
2494	itcl::body Rappture::VtkHeightmapViewer::MotionLegend { x y } {
2495	Rappture::Tooltip::tooltip cancel
2496	set c $itk_component(view)
2497	set cw [winfo width $c]
2498	set ch [winfo height $c]
2499	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2500	SetLegendTip $x $y
2501	}
2502	}
2503
2504	#
2505	# LeaveLegend --
2506	#
2507	itcl::body Rappture::VtkHeightmapViewer::LeaveLegend { } {
2508	Rappture::Tooltip::tooltip cancel
2509	.rappturetooltip configure -icon ""
2510	}
2511
2512	#
2513	# SetLegendTip --
2514	#
2515	itcl::body Rappture::VtkHeightmapViewer::SetLegendTip { x y } {
2516	set fname $_curFldName
2517	set c $itk_component(view)
2518	set w [winfo width $c]
2519	set h [winfo height $c]
2520	set font "Arial 8"
2521	set lineht [font metrics $font -linespace]
2522
2523	set ih [image height $_image(legend)]
2524	# Subtract off the offset of the color ramp from the top of the canvas
2525	set iy [expr $y - ($lineht + 2)]
2526
2527	if { [string match "component*" $fname] } {
2528	set title ""
2529	} else {
2530	if { [info exists _fields($fname)] } {
2531	foreach { title units } $_fields($fname) break
2532	if { $units != "" } {
2533	set title [format "%s (%s)" $title $units]
2534	}
2535	} else {
2536	set title $fname
2537	}
2538	}
2539	# If there's a legend title, increase the offset by the line height.
2540	if { $title != "" } {
2541	incr iy -$lineht
2542	}
2543
2544	# Make a swatch of the selected color
2545	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2546	return
2547	}
2548
2549	if { ![info exists _image(swatch)] } {
2550	set _image(swatch) [image create photo -width 24 -height 24]
2551	}
2552	set color [eval format "\#%02x%02x%02x" $pixel]
2553	$_image(swatch) put black -to 0 0 23 23
2554	$_image(swatch) put $color -to 1 1 22 22
2555
2556	# Compute the value of the point
2557	if { [info exists _limits($fname)] } {
2558	foreach { vmin vmax } $_limits($fname) break
2559	set t [expr 1.0 - (double($iy) / double($ih-1))]
2560	set value [expr $t * ($vmax - $vmin) + $vmin]
2561	} else {
2562	set value 0.0
2563	}
2564	set tipx [expr $x + 15]
2565	set tipy [expr $y - 5]
2566	.rappturetooltip configure -icon $_image(swatch)
2567	if { [info exists _isolines($y)] } {
2568	Rappture::Tooltip::text $c [format "$title %g (isoline)" $_isolines($y)]
2569	} else {
2570	Rappture::Tooltip::text $c [format "$title %g" $value]
2571	}
2572	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2573	}
2574
2575	# ----------------------------------------------------------------------
2576	# USAGE: _dropdown post
2577	# USAGE: _dropdown unpost
2578	# USAGE: _dropdown select
2579	#
2580	# Used internally to handle the dropdown list for this combobox. The
2581	# post/unpost options are invoked when the list is posted or unposted
2582	# to manage the relief of the controlling button. The select option
2583	# is invoked whenever there is a selection from the list, to assign
2584	# the value back to the gauge.
2585	# ----------------------------------------------------------------------
2586	itcl::body Rappture::VtkHeightmapViewer::Combo {option} {
2587	set c $itk_component(view)
2588	switch -- $option {
2589	post {
2590	foreach { x1 y1 x2 y2 } [$c bbox title] break
2591	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2592	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2593	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2594	tk_popup $itk_component(fieldmenu) $x $y
2595	}
2596	activate {
2597	$c itemconfigure title -fill red
2598	}
2599	deactivate {
2600	$c itemconfigure title -fill $itk_option(-plotforeground)
2601	}
2602	invoke {
2603	$itk_component(field) value $_curFldLabel
2604	AdjustSetting -field
2605	}
2606	default {
2607	error "bad option \"$option\": should be post, unpost, select"
2608	}
2609	}
2610	}
2611
2612	itcl::body Rappture::VtkHeightmapViewer::GetHeightmapScale {} {
2613	if { $_settings(-isheightmap) } {
2614	set val $_settings(-heightmapscale)
2615	set sval [expr { $val >= 50 ? double($val)/50.0 : 1.0/(2.0-(double($val)/50.0)) }]
2616	return $sval
2617	}
2618	return 0
2619	}
2620
2621	itcl::body Rappture::VtkHeightmapViewer::SetOrientation { side } {
2622	array set positions {
2623	front "0.707107 0.707107 0 0"
2624	back "0 0 0.707107 0.707107"
2625	left "0.5 0.5 -0.5 -0.5"
2626	right "0.5 0.5 0.5 0.5"
2627	top "1 0 0 0"
2628	bottom "0 1 0 0"
2629	}
2630	foreach name { -qw -qx -qy -qz } value $positions($side) {
2631	set _view($name) $value
2632	}
2633	set q [ViewToQuaternion]
2634	$_arcball quaternion $q
2635	SendCmd "camera orient $q"
2636	SendCmd "camera reset"
2637	set _view(-xpan) 0
2638	set _view(-ypan) 0
2639	set _view(-zoom) 1.0
2640	}
2641
2642	itcl::body Rappture::VtkHeightmapViewer::UpdateContourList {} {
2643	if {$_currentNumIsolines == 0} {
2644	set _contourList ""
2645	return
2646	}
2647	if { ![info exists _limits($_curFldName)] } {
2648	return
2649	}
2650	foreach { vmin vmax } $_limits($_curFldName) break
2651	set v [blt::vector create \#auto]
2652	$v seq $vmin $vmax [expr $_currentNumIsolines+2]
2653	$v delete end 0
2654	set _contourList [$v range 0 end]
2655	blt::vector destroy $v
2656	}

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

Download in other formats: