Context Navigation

source: branches/1.4/gui/scripts/vtkheightmapviewer.tcl @ 5183

Last change on this file since 5183 was 5183, checked in by ldelgass, 9 years ago
s/wmap/amap/
File size: 90.6 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; # Connection to server has been reset.
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	-ortho 0
205	-qw 0.36
206	-qx 0.25
207	-qy 0.50
208	-qz 0.70
209	-xpan 0
210	-ypan 0
211	-zoom 1.0
212	}
213	set _arcball [blt::arcball create 100 100]
214	$_arcball quaternion [ViewToQuaternion]
215
216	array set _settings {
217	-axisflymode "static"
218	-axislabels 1
219	-axisminorticks 1
220	-axisvisible 1
221	-colormap BCGYR
222	-colormapdiscrete 0
223	-colormapvisible 1
224	-edges 0
225	-field "Default"
226	-heightmapscale 50
227	-isheightmap 0
228	-isolinecolor black
229	-isolinesvisible 1
230	-legendvisible 1
231	-lighting 1
232	-numisolines 10
233	-opacity 100
234	-outline 0
235	-savelighting 1
236	-saveopacity 100
237	-saveoutline 0
238	-stretchtofit 0
239	-wireframe 0
240	-xgrid 0
241	-ygrid 0
242	-zgrid 0
243	}
244	array set _changed {
245	-colormap 0
246	-numisolines 0
247	-opacity 0
248	}
249	itk_component add view {
250	canvas $itk_component(plotarea).view \
251	-highlightthickness 0 -borderwidth 0
252	} {
253	usual
254	ignore -highlightthickness -borderwidth -background
255	}
256
257	itk_component add fieldmenu {
258	menu $itk_component(plotarea).menu \
259	-relief flat \
260	-tearoff no
261	} {
262	usual
263	ignore -background -foreground -relief -tearoff
264	}
265	set c $itk_component(view)
266	bind $c <Configure> [itcl::code $this EventuallyResize %w %h]
267	bind $c <4> [itcl::code $this Zoom in 0.25]
268	bind $c <5> [itcl::code $this Zoom out 0.25]
269	bind $c <KeyPress-Left> [list %W xview scroll 10 units]
270	bind $c <KeyPress-Right> [list %W xview scroll -10 units]
271	bind $c <KeyPress-Up> [list %W yview scroll 10 units]
272	bind $c <KeyPress-Down> [list %W yview scroll -10 units]
273	bind $c <Enter> "focus %W"
274	bind $c <Control-F1> [itcl::code $this ToggleConsole]
275
276	# Fix the scrollregion in case we go off screen
277	$c configure -scrollregion [$c bbox all]
278
279	set _map(id) [$c create image 0 0 -anchor nw -image $_image(plot)]
280	set _map(cwidth) -1
281	set _map(cheight) -1
282	set _map(zoom) 1.0
283	set _map(original) ""
284
285	set f [$itk_component(main) component controls]
286	itk_component add reset {
287	button $f.reset -borderwidth 1 -padx 1 -pady 1 \
288	-highlightthickness 0 \
289	-image [Rappture::icon reset-view] \
290	-command [itcl::code $this CameraReset]
291	} {
292	usual
293	ignore -highlightthickness
294	}
295	pack $itk_component(reset) -side top -padx 2 -pady { 2 0 }
296	Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level"
297
298	itk_component add zoomin {
299	button $f.zin -borderwidth 1 -padx 1 -pady 1 \
300	-highlightthickness 0 \
301	-image [Rappture::icon zoom-in] \
302	-command [itcl::code $this Zoom in]
303	} {
304	usual
305	ignore -highlightthickness
306	}
307	pack $itk_component(zoomin) -side top -padx 2 -pady { 2 0 }
308	Rappture::Tooltip::for $itk_component(zoomin) "Zoom in"
309
310	itk_component add zoomout {
311	button $f.zout -borderwidth 1 -padx 1 -pady 1 \
312	-highlightthickness 0 \
313	-image [Rappture::icon zoom-out] \
314	-command [itcl::code $this Zoom out]
315	} {
316	usual
317	ignore -highlightthickness
318	}
319	pack $itk_component(zoomout) -side top -padx 2 -pady { 2 0 }
320	Rappture::Tooltip::for $itk_component(zoomout) "Zoom out"
321
322	itk_component add mode {
323	Rappture::PushButton $f.mode \
324	-onimage [Rappture::icon surface] \
325	-offimage [Rappture::icon surface] \
326	-variable [itcl::scope _settings(-isheightmap)] \
327	-command [itcl::code $this AdjustSetting -isheightmap] \
328	}
329	Rappture::Tooltip::for $itk_component(mode) \
330	"Toggle the surface/contour on/off"
331	pack $itk_component(mode) -padx 2 -pady { 2 0 }
332
333	itk_component add stretchtofit {
334	Rappture::PushButton $f.stretchtofit \
335	-onimage [Rappture::icon stretchtofit] \
336	-offimage [Rappture::icon stretchtofit] \
337	-variable [itcl::scope _settings(-stretchtofit)] \
338	-command [itcl::code $this AdjustSetting -stretchtofit] \
339	}
340	Rappture::Tooltip::for $itk_component(stretchtofit) \
341	"Stretch plot to fit window on/off"
342	pack $itk_component(stretchtofit) -padx 2 -pady 2
343
344	if { [catch {
345	BuildContourTab
346	BuildAxisTab
347	BuildCameraTab
348	} errs] != 0 } {
349	global errorInfo
350	puts stderr "errs=$errs errorInfo=$errorInfo"
351	}
352
353	# Hack around the Tk panewindow. The problem is that the requested
354	# size of the 3d view isn't set until an image is retrieved from
355	# the server. So the panewindow uses the tiny size.
356	set w 10000
357	pack forget $itk_component(view)
358	blt::table $itk_component(plotarea) \
359	0,0 $itk_component(view) -fill both -reqwidth $w
360	blt::table configure $itk_component(plotarea) c1 -resize none
361
362	# Bindings for panning via mouse
363	bind $itk_component(view) <ButtonPress-2> \
364	[itcl::code $this Pan click %x %y]
365	bind $itk_component(view) <B2-Motion> \
366	[itcl::code $this Pan drag %x %y]
367	bind $itk_component(view) <ButtonRelease-2> \
368	[itcl::code $this Pan release %x %y]
369
370	#bind $itk_component(view) <ButtonRelease-3> \
371	# [itcl::code $this Pick %x %y]
372
373	# Bindings for panning via keyboard
374	bind $itk_component(view) <KeyPress-Left> \
375	[itcl::code $this Pan set -10 0]
376	bind $itk_component(view) <KeyPress-Right> \
377	[itcl::code $this Pan set 10 0]
378	bind $itk_component(view) <KeyPress-Up> \
379	[itcl::code $this Pan set 0 -10]
380	bind $itk_component(view) <KeyPress-Down> \
381	[itcl::code $this Pan set 0 10]
382	bind $itk_component(view) <Shift-KeyPress-Left> \
383	[itcl::code $this Pan set -2 0]
384	bind $itk_component(view) <Shift-KeyPress-Right> \
385	[itcl::code $this Pan set 2 0]
386	bind $itk_component(view) <Shift-KeyPress-Up> \
387	[itcl::code $this Pan set 0 -2]
388	bind $itk_component(view) <Shift-KeyPress-Down> \
389	[itcl::code $this Pan set 0 2]
390
391	# Bindings for zoom via keyboard
392	bind $itk_component(view) <KeyPress-Prior> \
393	[itcl::code $this Zoom out]
394	bind $itk_component(view) <KeyPress-Next> \
395	[itcl::code $this Zoom in]
396
397	bind $itk_component(view) <Enter> "focus $itk_component(view)"
398
399	if {[string equal "x11" [tk windowingsystem]]} {
400	# Bindings for zoom via mouse
401	bind $itk_component(view) <4> [itcl::code $this Zoom out]
402	bind $itk_component(view) <5> [itcl::code $this Zoom in]
403	}
404
405	set _image(download) [image create photo]
406	eval itk_initialize $args
407	Connect
408	}
409
410	# ----------------------------------------------------------------------
411	# DESTRUCTOR
412	# ----------------------------------------------------------------------
413	itcl::body Rappture::VtkHeightmapViewer::destructor {} {
414	Disconnect
415	image delete $_image(plot)
416	image delete $_image(download)
417	catch { blt::arcball destroy $_arcball }
418	}
419
420	itcl::body Rappture::VtkHeightmapViewer::DoResize {} {
421	if { $_width < 2 } {
422	set _width 500
423	}
424	if { $_height < 2 } {
425	set _height 500
426	}
427	set _start [clock clicks -milliseconds]
428	SendCmd "screen size [expr $_width - 20] $_height"
429
430	set font "Arial 8"
431	set lh [font metrics $font -linespace]
432	set h [expr {$_height - 2 * ($lh + 2)}]
433	if { $h != $_legendHeight } {
434	EventuallyRequestLegend
435	} else {
436	DrawLegend
437	}
438	set _resizePending 0
439	}
440
441	itcl::body Rappture::VtkHeightmapViewer::DoRotate {} {
442	SendCmd "camera orient [ViewToQuaternion]"
443	set _rotatePending 0
444	}
445
446	itcl::body Rappture::VtkHeightmapViewer::EventuallyRequestLegend {} {
447	if { !$_legendPending } {
448	set _legendPending 1
449	$_dispatcher event -idle !legend
450	}
451	}
452
453	itcl::body Rappture::VtkHeightmapViewer::EventuallyResize { w h } {
454	set _width $w
455	set _height $h
456	$_arcball resize $w $h
457	if { !$_resizePending } {
458	set _resizePending 1
459	$_dispatcher event -after 250 !resize
460	}
461	}
462
463	set rotate_delay 100
464
465	itcl::body Rappture::VtkHeightmapViewer::EventuallyRotate { q } {
466	QuaternionToView $q
467	if { !$_rotatePending } {
468	set _rotatePending 1
469	global rotate_delay
470	$_dispatcher event -after $rotate_delay !rotate
471	}
472	}
473
474	# ----------------------------------------------------------------------
475	# USAGE: add <dataobj> ?<settings>?
476	#
477	# Clients use this to add a data object to the plot. The optional
478	# <settings> are used to configure the plot. Allowed settings are
479	# -color, -brightness, -width, -linestyle, and -raise.
480	# ----------------------------------------------------------------------
481	itcl::body Rappture::VtkHeightmapViewer::add {dataobj {settings ""}} {
482	if { ![$dataobj isvalid] } {
483	return; # Object doesn't contain valid data.
484	}
485	array set params {
486	-color auto
487	-width 1
488	-linestyle solid
489	-brightness 0
490	-raise 0
491	-description ""
492	-param ""
493	-type ""
494	}
495	array set params $settings
496	set params(-description) ""
497	set params(-param) ""
498	array set params $settings
499
500	if {$params(-color) == "auto" \|\| $params(-color) == "autoreset"} {
501	# can't handle -autocolors yet
502	set params(-color) white
503	}
504	set pos [lsearch -exact $_dlist $dataobj]
505	if {$pos < 0} {
506	lappend _dlist $dataobj
507	}
508	set _obj2ovride($dataobj-color) $params(-color)
509	set _obj2ovride($dataobj-width) $params(-width)
510	set _obj2ovride($dataobj-raise) $params(-raise)
511	$_dispatcher event -idle !rebuild
512	}
513
514
515	# ----------------------------------------------------------------------
516	# USAGE: delete ?<dataobj1> <dataobj2> ...?
517	#
518	# Clients use this to delete a dataobj from the plot. If no dataobjs
519	# are specified, then all dataobjs are deleted. No data objects are
520	# deleted. They are only removed from the display list.
521	#
522	# ----------------------------------------------------------------------
523	itcl::body Rappture::VtkHeightmapViewer::delete {args} {
524	if { [llength $args] == 0} {
525	set args $_dlist
526	}
527	# Delete all specified dataobjs
528	set changed 0
529	foreach dataobj $args {
530	set pos [lsearch -exact $_dlist $dataobj]
531	if { $pos < 0 } {
532	continue; # Don't know anything about it.
533	}
534	# Remove it from the dataobj list.
535	set _dlist [lreplace $_dlist $pos $pos]
536	array unset _obj2ovride $dataobj-*
537	array unset _settings $dataobj-*
538	set changed 1
539	}
540	# If anything changed, then rebuild the plot
541	if { $changed } {
542	$_dispatcher event -idle !rebuild
543	}
544	}
545
546	# ----------------------------------------------------------------------
547	# USAGE: get ?-objects?
548	# USAGE: get ?-visible?
549	# USAGE: get ?-image view?
550	#
551	# Clients use this to query the list of objects being plotted, in
552	# order from bottom to top of this result. The optional "-image"
553	# flag can also request the internal images being shown.
554	# ----------------------------------------------------------------------
555	itcl::body Rappture::VtkHeightmapViewer::get {args} {
556	if {[llength $args] == 0} {
557	set args "-objects"
558	}
559	set op [lindex $args 0]
560	switch -- $op {
561	"-objects" {
562	# put the dataobj list in order according to -raise options
563	set dlist {}
564	foreach dataobj $_dlist {
565	if { ![IsValidObject $dataobj] } {
566	continue
567	}
568	if {[info exists _obj2ovride($dataobj-raise)] &&
569	$_obj2ovride($dataobj-raise)} {
570	set dlist [linsert $dlist 0 $dataobj]
571	} else {
572	lappend dlist $dataobj
573	}
574	}
575	return $dlist
576	}
577	"-visible" {
578	set dlist {}
579	foreach dataobj $_dlist {
580	if { ![IsValidObject $dataobj] } {
581	continue
582	}
583	if { ![info exists _obj2ovride($dataobj-raise)] } {
584	# No setting indicates that the object isn't visible.
585	continue
586	}
587	# Otherwise use the -raise parameter to put the object to
588	# the front of the list.
589	if { $_obj2ovride($dataobj-raise) } {
590	set dlist [linsert $dlist 0 $dataobj]
591	} else {
592	lappend dlist $dataobj
593	}
594	}
595	return $dlist
596	}
597	-image {
598	if {[llength $args] != 2} {
599	error "wrong # args: should be \"get -image view\""
600	}
601	switch -- [lindex $args end] {
602	view {
603	return $_image(plot)
604	}
605	default {
606	error "bad image name \"[lindex $args end]\": should be view"
607	}
608	}
609	}
610	default {
611	error "bad option \"$op\": should be -objects or -image"
612	}
613	}
614	}
615
616	#
617	# scale --
618	#
619	# This gets called either incrementally as new simulations are
620	# added or all at once as a sequence of heightmaps.
621	# This accounts for all objects--even those not showing on the
622	# screen. Because of this, the limits are appropriate for all
623	# objects as the user scans through data in the ResultSet viewer.
624	#
625	itcl::body Rappture::VtkHeightmapViewer::scale {args} {
626	foreach dataobj $args {
627	if { ![$dataobj isvalid] } {
628	continue; # Object doesn't contain valid data.
629	}
630	foreach axis { x y } {
631	set lim [$dataobj limits $axis]
632	if { ![info exists _limits($axis)] } {
633	set _limits($axis) $lim
634	continue
635	}
636	foreach {min max} $lim break
637	foreach {amin amax} $_limits($axis) break
638	if { $amin > $min } {
639	set amin $min
640	}
641	if { $amax < $max } {
642	set amax $max
643	}
644	set _limits($axis) [list $amin $amax]
645	set units [$dataobj hints ${axis}units]
646	set found($units) 1
647	}
648	foreach { fname lim } [$dataobj fieldlimits] {
649	if { ![info exists _limits($fname)] } {
650	set _limits($fname) $lim
651	continue
652	}
653	foreach {min max} $lim break
654	foreach {fmin fmax} $_limits($fname) break
655	if { $fmin > $min } {
656	set fmin $min
657	}
658	if { $fmax < $max } {
659	set fmax $max
660	}
661	set _limits($fname) [list $fmin $fmax]
662	}
663	}
664	if { [array size found] > 1 } {
665	set _settings(-stretchtofit) 1
666	} else {
667	# Check if the range of the x and y axes requires that we stretch
668	# the contour to fit the plotting area. This can happen when the
669	# x and y scales differ greatly (> 100x)
670	foreach {xmin xmax} $_limits(x) break
671	foreach {ymin ymax} $_limits(y) break
672	if { (($xmax - $xmin) > (($ymax -$ymin) * $_maxScale)) \|\|
673	((($xmax - $xmin) * $_maxScale) < ($ymax -$ymin)) } {
674	set _settings(-stretchtofit) 1
675	}
676	}
677	}
678
679	# ----------------------------------------------------------------------
680	# USAGE: download coming
681	# USAGE: download controls <downloadCommand>
682	# USAGE: download now
683	#
684	# Clients use this method to create a downloadable representation
685	# of the plot. Returns a list of the form {ext string}, where
686	# "ext" is the file extension (indicating the type of data) and
687	# "string" is the data itself.
688	# ----------------------------------------------------------------------
689	itcl::body Rappture::VtkHeightmapViewer::download {option args} {
690	switch $option {
691	coming {
692	if {[catch {
693	blt::winop snap $itk_component(plotarea) $_image(download)
694	}]} {
695	$_image(download) configure -width 1 -height 1
696	$_image(download) put #000000
697	}
698	}
699	controls {
700	set popup .vtkviewerdownload
701	if { ![winfo exists .vtkviewerdownload] } {
702	set inner [BuildDownloadPopup $popup [lindex $args 0]]
703	} else {
704	set inner [$popup component inner]
705	}
706	set _downloadPopup(image_controls) $inner.image_frame
707	set num [llength [get]]
708	set num [expr {($num == 1) ? "1 result" : "$num results"}]
709	set word [Rappture::filexfer::label downloadWord]
710	$inner.summary configure -text "$word $num in the following format:"
711	update idletasks ;# Fix initial sizes
712	return $popup
713	}
714	now {
715	set popup .vtkviewerdownload
716	if {[winfo exists .vtkviewerdownload]} {
717	$popup deactivate
718	}
719	switch -- $_downloadPopup(format) {
720	"image" {
721	return [$this GetImage [lindex $args 0]]
722	}
723	"vtk" {
724	return [$this GetVtkData [lindex $args 0]]
725	}
726	}
727	return ""
728	}
729	default {
730	error "bad option \"$option\": should be coming, controls, now"
731	}
732	}
733	}
734
735	# ----------------------------------------------------------------------
736	# USAGE: Connect ?<host:port>,<host:port>...?
737	#
738	# Clients use this method to establish a connection to a new
739	# server, or to reestablish a connection to the previous server.
740	# Any existing connection is automatically closed.
741	# ----------------------------------------------------------------------
742	itcl::body Rappture::VtkHeightmapViewer::Connect {} {
743	global readyForNextFrame
744	set readyForNextFrame 1
745	set _hosts [GetServerList "vtkvis"]
746	if { "" == $_hosts } {
747	return 0
748	}
749	set _reset 1
750	set result [VisViewer::Connect $_hosts]
751	if { $result } {
752	if { $_reportClientInfo } {
753	# Tell the server the viewer, hub, user and session.
754	# Do this immediately on connect before buffering any commands
755	global env
756
757	set info {}
758	set user "???"
759	if { [info exists env(USER)] } {
760	set user $env(USER)
761	}
762	set session "???"
763	if { [info exists env(SESSION)] } {
764	set session $env(SESSION)
765	}
766	lappend info "version" "$Rappture::version"
767	lappend info "build" "$Rappture::build"
768	lappend info "svnurl" "$Rappture::svnurl"
769	lappend info "installdir" "$Rappture::installdir"
770	lappend info "hub" [exec hostname]
771	lappend info "client" "vtkheightmapviewer"
772	lappend info "user" $user
773	lappend info "session" $session
774	SendCmd "clientinfo [list $info]"
775	}
776	set w [winfo width $itk_component(view)]
777	set h [winfo height $itk_component(view)]
778	EventuallyResize $w $h
779	}
780	return $result
781	}
782
783	#
784	# isconnected --
785	#
786	# Indicates if we are currently connected to the visualization server.
787	#
788	itcl::body Rappture::VtkHeightmapViewer::isconnected {} {
789	return [VisViewer::IsConnected]
790	}
791
792	#
793	# disconnect --
794	#
795	itcl::body Rappture::VtkHeightmapViewer::disconnect {} {
796	Disconnect
797	set _reset 1
798	}
799
800	#
801	# Disconnect --
802	#
803	# Clients use this method to disconnect from the current rendering
804	# server.
805	#
806	itcl::body Rappture::VtkHeightmapViewer::Disconnect {} {
807	VisViewer::Disconnect
808
809	$_dispatcher cancel !rebuild
810	$_dispatcher cancel !resize
811	$_dispatcher cancel !rotate
812	$_dispatcher cancel !legend
813	# disconnected -- no more data sitting on server
814	array unset _datasets
815	array unset _data
816	array unset _colormaps
817	array unset _obj2datasets
818	global readyForNextFrame
819	set readyForNextFrame 1
820	}
821
822	# ----------------------------------------------------------------------
823	# USAGE: ReceiveImage -bytes <size> -type <type> -token <token>
824	#
825	# Invoked automatically whenever the "image" command comes in from
826	# the rendering server. Indicates that binary image data with the
827	# specified <size> will follow.
828	# ----------------------------------------------------------------------
829	itcl::body Rappture::VtkHeightmapViewer::ReceiveImage { args } {
830	global readyForNextFrame
831	set readyForNextFrame 1
832	array set info {
833	-token "???"
834	-bytes 0
835	-type image
836	}
837	array set info $args
838	set bytes [ReceiveBytes $info(-bytes)]
839	if { $info(-type) == "image" } {
840	if 0 {
841	set f [open "last.ppm" "w"]
842	fconfigure $f -encoding binary
843	puts -nonewline $f $bytes
844	close $f
845	}
846	$_image(plot) configure -data $bytes
847	set time [clock seconds]
848	set date [clock format $time]
849	#puts stderr "$date: received image [image width $_image(plot)]x[image height $_image(plot)] image>"
850	if { $_start > 0 } {
851	set finish [clock clicks -milliseconds]
852	#puts stderr "round trip time [expr $finish -$_start] milliseconds"
853	set _start 0
854	}
855	} elseif { $info(type) == "print" } {
856	set tag $this-print-$info(-token)
857	set _hardcopy($tag) $bytes
858	}
859	}
860
861	#
862	# ReceiveDataset --
863	#
864	itcl::body Rappture::VtkHeightmapViewer::ReceiveDataset { args } {
865	if { ![isconnected] } {
866	return
867	}
868	set option [lindex $args 0]
869	switch -- $option {
870	"scalar" {
871	set option [lindex $args 1]
872	switch -- $option {
873	"world" {
874	foreach { x y z value tag } [lrange $args 2 end] break
875	}
876	"pixel" {
877	foreach { x y value tag } [lrange $args 2 end] break
878	}
879	}
880	}
881	"vector" {
882	set option [lindex $args 1]
883	switch -- $option {
884	"world" {
885	foreach { x y z vx vy vz tag } [lrange $args 2 end] break
886	}
887	"pixel" {
888	foreach { x y vx vy vz tag } [lrange $args 2 end] break
889	}
890	}
891	}
892	"names" {
893	foreach { name } [lindex $args 1] {
894	#puts stderr "Dataset: $name"
895	}
896	}
897	default {
898	error "unknown dataset option \"$option\" from server"
899	}
900	}
901	}
902
903	# ----------------------------------------------------------------------
904	# USAGE: Rebuild
905	#
906	# Called automatically whenever something changes that affects the
907	# data in the widget. Clears any existing data and rebuilds the
908	# widget to display new data.
909	# ----------------------------------------------------------------------
910	itcl::body Rappture::VtkHeightmapViewer::Rebuild {} {
911	set w [winfo width $itk_component(view)]
912	set h [winfo height $itk_component(view)]
913	if { $w < 2 \|\| $h < 2 } {
914	update
915	$_dispatcher event -idle !rebuild
916	return
917	}
918
919	# Turn on buffering of commands to the server. We don't want to
920	# be preempted by a server disconnect/reconnect (which automatically
921	# generates a new call to Rebuild).
922	StartBufferingCommands
923
924	if { $_width != $w \|\| $_height != $h \|\| $_reset } {
925	set _width $w
926	set _height $h
927	$_arcball resize $w $h
928	DoResize
929	if { $_settings(-stretchtofit) } {
930	AdjustSetting -stretchtofit
931	}
932	}
933	if { $_reset } {
934	#
935	# Reset the camera and other view parameters
936	#
937	InitSettings -isheightmap -background
938
939	# Setting a custom exponent and label format for axes is causing
940	# a problem with rounding. Near zero ticks aren't rounded by
941	# the %g format. The VTK CubeAxes seem to currently work best
942	# when allowed to automatically set the exponent and precision
943	# based on the axis ranges. This does tend to result in less
944	# visual clutter, so I think it is best to use the automatic
945	# settings by default. We can test more fine-grained
946	# controls on the axis settings tab if necessary.
947	# -Leif
948	#SendCmd "axis exp 0 0 0 1"
949
950	SendCmd "axis lrot z 90"
951	$_arcball quaternion [ViewToQuaternion]
952	if {$_settings(-isheightmap) } {
953	if { $_view(-ortho)} {
954	SendCmd "camera mode ortho"
955	} else {
956	SendCmd "camera mode persp"
957	}
958	DoRotate
959	SendCmd "camera reset"
960	}
961	PanCamera
962	StopBufferingCommands
963	SendCmd "imgflush"
964	StartBufferingCommands
965	}
966
967	set _first ""
968	# Start off with no datasets are visible.
969	SendCmd "dataset visible 0"
970	set scale [GetHeightmapScale]
971	foreach dataobj [get -objects] {
972	if { [info exists _obj2ovride($dataobj-raise)] && $_first == "" } {
973	set _first $dataobj
974	}
975	set _obj2datasets($dataobj) ""
976	foreach comp [$dataobj components] {
977	set tag $dataobj-$comp
978	if { ![info exists _datasets($tag)] } {
979	set bytes [$dataobj vtkdata $comp]
980	if 0 {
981	set f [open /tmp/vtkheightmap.vtk "w"]
982	fconfigure $f -translation binary -encoding binary
983	puts -nonewline $f $bytes
984	close $f
985	}
986	set length [string length $bytes]
987	if { $_reportClientInfo } {
988	set info {}
989	lappend info "tool_id" [$dataobj hints toolid]
990	lappend info "tool_name" [$dataobj hints toolname]
991	lappend info "tool_title" [$dataobj hints tooltitle]
992	lappend info "tool_command" [$dataobj hints toolcommand]
993	lappend info "tool_revision" [$dataobj hints toolrevision]
994	lappend info "dataset_label" [$dataobj hints label]
995	lappend info "dataset_size" $length
996	lappend info "dataset_tag" $tag
997	SendCmd "clientinfo [list $info]"
998	}
999	SendCmd "dataset add $tag data follows $length"
1000	SendData $bytes
1001	set _datasets($tag) 1
1002	SetObjectStyle $dataobj $comp
1003	}
1004	lappend _obj2datasets($dataobj) $tag
1005	if { [info exists _obj2ovride($dataobj-raise)] } {
1006	# Setting dataset visible enables outline
1007	# and heightmap
1008	SendCmd "dataset visible 1 $tag"
1009	}
1010	if { ![info exists _comp2scale($tag)] \|\|
1011	$_comp2scale($tag) != $scale } {
1012	SendCmd "heightmap heightscale $scale $tag"
1013	set _comp2scale($tag) $scale
1014	}
1015	}
1016	}
1017	if { $_first != "" } {
1018	$itk_component(field) choices delete 0 end
1019	$itk_component(fieldmenu) delete 0 end
1020	array unset _fields
1021	set _curFldName ""
1022	foreach cname [$_first components] {
1023	foreach fname [$_first fieldnames $cname] {
1024	if { [info exists _fields($fname)] } {
1025	continue
1026	}
1027	foreach { label units components } \
1028	[$_first fieldinfo $fname] break
1029	$itk_component(field) choices insert end "$fname" "$label"
1030	$itk_component(fieldmenu) add radiobutton -label "$label" \
1031	-value $label -variable [itcl::scope _curFldLabel] \
1032	-selectcolor red \
1033	-activebackground $itk_option(-plotbackground) \
1034	-activeforeground $itk_option(-plotforeground) \
1035	-font "Arial 8" \
1036	-command [itcl::code $this Combo invoke]
1037	set _fields($fname) [list $label $units $components]
1038	if { $_curFldName == "" } {
1039	set _curFldName $fname
1040	set _curFldLabel $label
1041	}
1042	}
1043	}
1044	$itk_component(field) value $_curFldLabel
1045	}
1046	InitSettings -stretchtofit -outline
1047
1048	if { $_reset } {
1049	SendCmd "axis tickpos outside"
1050	#SendCmd "axis lformat all %g"
1051
1052	foreach axis { x y z } {
1053	set label ""
1054	if { $_first != "" } {
1055	if { $axis == "z" } {
1056	set label [$_first hints label]
1057	} else {
1058	set label [$_first hints ${axis}label]
1059	}
1060	}
1061	if { $label == "" } {
1062	if {$axis == "z"} {
1063	if { [string match "component*" $_curFldName] } {
1064	set label [string toupper $axis]
1065	} else {
1066	set label $_curFldLabel
1067	}
1068	} else {
1069	set label [string toupper $axis]
1070	}
1071	}
1072	# May be a space in the axis label.
1073	SendCmd [list axis name $axis $label]
1074
1075	set units ""
1076	if { $_first != "" } {
1077	if { $axis == "z" } {
1078	set units [$_first hints units]
1079	} else {
1080	set units [$_first hints ${axis}units]
1081	}
1082	}
1083	if { $units == "" && $axis == "z" } {
1084	if { $_first != "" && [$_first hints zunits] != "" } {
1085	set units [$_first hints zunits]
1086	} elseif { [info exists _fields($_curFldName)] } {
1087	set units [lindex $_fields($_curFldName) 1]
1088	}
1089	}
1090	# May be a space in the axis units.
1091	SendCmd [list axis units $axis $units]
1092	}
1093	#
1094	# Reset the camera and other view parameters
1095	#
1096	ResetAxes
1097	$_arcball quaternion [ViewToQuaternion]
1098	if {$_settings(-isheightmap) } {
1099	if { $_view(-ortho)} {
1100	SendCmd "camera mode ortho"
1101	} else {
1102	SendCmd "camera mode persp"
1103	}
1104	DoRotate
1105	SendCmd "camera reset"
1106	}
1107	PanCamera
1108	InitSettings -xgrid -ygrid -zgrid \
1109	-axisvisible -axislabels -heightmapscale -field -isheightmap \
1110	-numisolines
1111	if { [array size _fields] < 2 } {
1112	catch {blt::table forget $itk_component(field) $itk_component(field_l)}
1113	}
1114	RequestLegend
1115	set _reset 0
1116	}
1117	global readyForNextFrame
1118	set readyForNextFrame 0; # Don't advance to the next frame
1119
1120	# Actually write the commands to the server socket. If it fails, we don't
1121	# care. We're finished here.
1122	blt::busy hold $itk_component(hull)
1123	StopBufferingCommands
1124	blt::busy release $itk_component(hull)
1125	}
1126
1127	# ----------------------------------------------------------------------
1128	# USAGE: CurrentDatasets ?-all -visible? ?dataobjs?
1129	#
1130	# Returns a list of server IDs for the current datasets being displayed. This
1131	# is normally a single ID, but it might be a list of IDs if the current data
1132	# object has multiple components.
1133	# ----------------------------------------------------------------------
1134	itcl::body Rappture::VtkHeightmapViewer::CurrentDatasets {args} {
1135	set flag [lindex $args 0]
1136	switch -- $flag {
1137	"-all" {
1138	if { [llength $args] > 1 } {
1139	error "CurrentDatasets: can't specify dataobj after \"-all\""
1140	}
1141	set dlist [get -objects]
1142	}
1143	"-visible" {
1144	if { [llength $args] > 1 } {
1145	set dlist {}
1146	set args [lrange $args 1 end]
1147	foreach dataobj $args {
1148	if { [info exists _obj2ovride($dataobj-raise)] } {
1149	lappend dlist $dataobj
1150	}
1151	}
1152	} else {
1153	set dlist [get -visible]
1154	}
1155	}
1156	default {
1157	set dlist $args
1158	}
1159	}
1160	set rlist ""
1161	foreach dataobj $dlist {
1162	foreach comp [$dataobj components] {
1163	set tag $dataobj-$comp
1164	if { [info exists _datasets($tag)] && $_datasets($tag) } {
1165	lappend rlist $tag
1166	}
1167	}
1168	}
1169	return $rlist
1170	}
1171
1172	itcl::body Rappture::VtkHeightmapViewer::CameraReset {} {
1173	array set _view {
1174	-qw 0.36
1175	-qx 0.25
1176	-qy 0.50
1177	-qz 0.70
1178	-xpan 0
1179	-ypan 0
1180	-zoom 1.0
1181	}
1182	if { $_first != "" } {
1183	set location [$_first hints camera]
1184	if { $location != "" } {
1185	array set _view $location
1186	}
1187	}
1188	$_arcball quaternion [ViewToQuaternion]
1189	if {$_settings(-isheightmap) } {
1190	DoRotate
1191	}
1192	SendCmd "camera reset"
1193	}
1194
1195	# ----------------------------------------------------------------------
1196	# USAGE: Zoom in
1197	# USAGE: Zoom out
1198	# USAGE: Zoom reset
1199	#
1200	# Called automatically when the user clicks on one of the zoom
1201	# controls for this widget. Changes the zoom for the current view.
1202	# ----------------------------------------------------------------------
1203	itcl::body Rappture::VtkHeightmapViewer::Zoom {option} {
1204	switch -- $option {
1205	"in" {
1206	set _view(-zoom) [expr {$_view(-zoom)*1.25}]
1207	SendCmd "camera zoom $_view(-zoom)"
1208	}
1209	"out" {
1210	set _view(-zoom) [expr {$_view(-zoom)*0.8}]
1211	SendCmd "camera zoom $_view(-zoom)"
1212	}
1213	"reset" {
1214	array set _view {
1215	-xpan 0
1216	-ypan 0
1217	-zoom 1.0
1218	}
1219	SendCmd "camera reset"
1220	}
1221	}
1222	}
1223
1224	itcl::body Rappture::VtkHeightmapViewer::PanCamera {} {
1225	set x $_view(-xpan)
1226	set y $_view(-ypan)
1227	SendCmd "camera pan $x $y"
1228	}
1229
1230
1231	# ----------------------------------------------------------------------
1232	# USAGE: Rotate click <x> <y>
1233	# USAGE: Rotate drag <x> <y>
1234	# USAGE: Rotate release <x> <y>
1235	#
1236	# Called automatically when the user clicks/drags/releases in the
1237	# plot area. Moves the plot according to the user's actions.
1238	# ----------------------------------------------------------------------
1239	itcl::body Rappture::VtkHeightmapViewer::Rotate {option x y} {
1240	switch -- $option {
1241	"click" {
1242	$itk_component(view) configure -cursor fleur
1243	set _click(x) $x
1244	set _click(y) $y
1245	}
1246	"drag" {
1247	if {[array size _click] == 0} {
1248	Rotate click $x $y
1249	} else {
1250	set w [winfo width $itk_component(view)]
1251	set h [winfo height $itk_component(view)]
1252	if {$w <= 0 \|\| $h <= 0} {
1253	return
1254	}
1255
1256	if {[catch {
1257	# this fails sometimes for no apparent reason
1258	set dx [expr {double($x-$_click(x))/$w}]
1259	set dy [expr {double($y-$_click(y))/$h}]
1260	}]} {
1261	return
1262	}
1263	if { $dx == 0 && $dy == 0 } {
1264	return
1265	}
1266	set q [$_arcball rotate $x $y $_click(x) $_click(y)]
1267	EventuallyRotate $q
1268	set _click(x) $x
1269	set _click(y) $y
1270	}
1271	}
1272	"release" {
1273	Rotate drag $x $y
1274	$itk_component(view) configure -cursor ""
1275	catch {unset _click}
1276	}
1277	default {
1278	error "bad option \"$option\": should be click, drag, release"
1279	}
1280	}
1281	}
1282
1283	itcl::body Rappture::VtkHeightmapViewer::Pick {x y} {
1284	foreach tag [CurrentDatasets -visible] {
1285	SendCmd "dataset getscalar pixel $x $y $tag"
1286	}
1287	}
1288
1289	# ----------------------------------------------------------------------
1290	# USAGE: $this Pan click x y
1291	# $this Pan drag x y
1292	# $this Pan release x y
1293	#
1294	# Called automatically when the user clicks on one of the zoom
1295	# controls for this widget. Changes the zoom for the current view.
1296	# ----------------------------------------------------------------------
1297	itcl::body Rappture::VtkHeightmapViewer::Pan {option x y} {
1298	switch -- $option {
1299	"set" {
1300	set w [winfo width $itk_component(view)]
1301	set h [winfo height $itk_component(view)]
1302	set x [expr $x / double($w)]
1303	set y [expr $y / double($h)]
1304	set _view(-xpan) [expr $_view(-xpan) + $x]
1305	set _view(-ypan) [expr $_view(-ypan) + $y]
1306	PanCamera
1307	return
1308	}
1309	"click" {
1310	set _click(x) $x
1311	set _click(y) $y
1312	$itk_component(view) configure -cursor hand1
1313	}
1314	"drag" {
1315	if { ![info exists _click(x)] } {
1316	set _click(x) $x
1317	}
1318	if { ![info exists _click(y)] } {
1319	set _click(y) $y
1320	}
1321	set w [winfo width $itk_component(view)]
1322	set h [winfo height $itk_component(view)]
1323	set dx [expr ($_click(x) - $x)/double($w)]
1324	set dy [expr ($_click(y) - $y)/double($h)]
1325	set _click(x) $x
1326	set _click(y) $y
1327	set _view(-xpan) [expr $_view(-xpan) - $dx]
1328	set _view(-ypan) [expr $_view(-ypan) - $dy]
1329	PanCamera
1330	}
1331	"release" {
1332	Pan drag $x $y
1333	$itk_component(view) configure -cursor ""
1334	}
1335	default {
1336	error "unknown option \"$option\": should set, click, drag, or release"
1337	}
1338	}
1339	}
1340
1341	# ----------------------------------------------------------------------
1342	# USAGE: InitSettings <what> ?<value>?
1343	#
1344	# Used internally to update rendering settings whenever parameters
1345	# change in the popup settings panel. Sends the new settings off
1346	# to the back end.
1347	# ----------------------------------------------------------------------
1348	itcl::body Rappture::VtkHeightmapViewer::InitSettings { args } {
1349	foreach spec $args {
1350	if { [info exists _settings($_first${spec})] } {
1351	# Reset global setting with dataobj specific setting
1352	set _settings($spec) $_settings($_first${spec})
1353	}
1354	AdjustSetting $spec
1355	}
1356	}
1357
1358	#
1359	# AdjustSetting --
1360	#
1361	# Changes/updates a specific setting in the widget. There are
1362	# usually user-setable option. Commands are sent to the render
1363	# server.
1364	#
1365	itcl::body Rappture::VtkHeightmapViewer::AdjustSetting {what {value ""}} {
1366	if { ![isconnected] } {
1367	return
1368	}
1369	switch -- $what {
1370	"-axisflymode" {
1371	set mode [$itk_component(axisflymode) value]
1372	set mode [$itk_component(axisflymode) translate $mode]
1373	set _settings($what) $mode
1374	SendCmd "axis flymode $mode"
1375	}
1376	"-axislabels" {
1377	set bool $_settings($what)
1378	SendCmd "axis labels all $bool"
1379	}
1380	"-axisminorticks" {
1381	set bool $_settings($what)
1382	SendCmd "axis minticks all $bool"
1383	}
1384	"-axisvisible" {
1385	set bool $_settings($what)
1386	SendCmd "axis visible all $bool"
1387	}
1388	"-background" {
1389	set bg [$itk_component(background) value]
1390	array set fgcolors {
1391	"black" "white"
1392	"white" "black"
1393	"grey" "black"
1394	}
1395	set fg $fgcolors($bg)
1396	configure -plotbackground $bg -plotforeground $fg
1397	$itk_component(view) delete "legend"
1398	SendCmd "screen bgcolor [Color2RGB $bg]"
1399	SendCmd "outline color [Color2RGB $fg]"
1400	SendCmd "axis color all [Color2RGB $fg]"
1401	DrawLegend
1402	}
1403	"-colormap" {
1404	set _changed($what) 1
1405	StartBufferingCommands
1406	set color [$itk_component(colormap) value]
1407	set _settings($what) $color
1408	if { $color == "none" } {
1409	if { $_settings(-colormapvisible) } {
1410	SendCmd "heightmap surface 0"
1411	set _settings(-colormapvisible) 0
1412	}
1413	} else {
1414	if { !$_settings(-colormapvisible) } {
1415	SendCmd "heightmap surface 1"
1416	set _settings(-colormapvisible) 1
1417	}
1418	SetCurrentColormap $color
1419	if {$_settings(-colormapdiscrete)} {
1420	set numColors [expr $_settings(-numisolines) + 1]
1421	SendCmd "colormap res $numColors $color"
1422	}
1423	}
1424	StopBufferingCommands
1425	EventuallyRequestLegend
1426	}
1427	"-colormapvisible" {
1428	set bool $_settings($what)
1429	SendCmd "heightmap surface $bool"
1430	}
1431	"-colormapdiscrete" {
1432	set bool $_settings($what)
1433	set numColors [expr $_settings(-numisolines) + 1]
1434	StartBufferingCommands
1435	if {$bool} {
1436	SendCmd "colormap res $numColors"
1437	# Discrete colormap requires preinterp on
1438	SendCmd "heightmap preinterp on"
1439	} else {
1440	SendCmd "colormap res default"
1441	# FIXME: add setting for preinterp (default on)
1442	SendCmd "heightmap preinterp on"
1443	}
1444	StopBufferingCommands
1445	EventuallyRequestLegend
1446	}
1447	"-edges" {
1448	set bool $_settings($what)
1449	SendCmd "heightmap edges $bool"
1450	}
1451	"-field" {
1452	set label [$itk_component(field) value]
1453	set fname [$itk_component(field) translate $label]
1454	set _settings($what) $fname
1455	if { [info exists _fields($fname)] } {
1456	foreach { label units components } $_fields($fname) break
1457	if { $components > 1 } {
1458	set _colorMode vmag
1459	} else {
1460	set _colorMode scalar
1461	}
1462	set _curFldName $fname
1463	set _curFldLabel $label
1464	} else {
1465	puts stderr "unknown field \"$fname\""
1466	return
1467	}
1468	set label ""
1469	if { $_first != "" } {
1470	set label [$_first hints label]
1471	}
1472	if { $label == "" } {
1473	if { [string match "component*" $_curFldName] } {
1474	set label Z
1475	} else {
1476	set label $_curFldLabel
1477	}
1478	}
1479	# May be a space in the axis label.
1480	SendCmd [list axis name z $label]
1481
1482	set units ""
1483	if { $_first != "" } {
1484	set units [$_first hints units]
1485	}
1486	if { $units == "" } {
1487	if { $_first != "" && [$_first hints zunits] != "" } {
1488	set units [$_first hints zunits]
1489	} elseif { [info exists _fields($_curFldName)] } {
1490	set units [lindex $_fields($_curFldName) 1]
1491	}
1492	}
1493	# May be a space in the axis units.
1494	SendCmd [list axis units z $units]
1495	# Get the new limits because the field changed.
1496	ResetAxes
1497	SendCmd "dataset scalar $_curFldName"
1498	SendCmd "heightmap colormode scalar $_curFldName"
1499	Zoom reset
1500	UpdateContourList
1501	DrawLegend
1502	}
1503	"-heightmapscale" {
1504	if { $_settings(-isheightmap) } {
1505	set scale [GetHeightmapScale]
1506	# Have to set the datasets individually because we are
1507	# tracking them in _comp2scale.
1508	foreach dataset [CurrentDatasets -all] {
1509	SendCmd "heightmap heightscale $scale $dataset"
1510	set _comp2scale($dataset) $scale
1511	}
1512	ResetAxes
1513	}
1514	}
1515	"-isheightmap" {
1516	set bool $_settings($what)
1517	set c $itk_component(view)
1518	StartBufferingCommands
1519	# Fix heightmap scale: 0 for contours, 1 for heightmaps.
1520	if { $bool } {
1521	set _settings(-heightmapscale) 50
1522	set _settings(-opacity) $_settings(-saveopacity)
1523	set _settings(-lighting) $_settings(-savelighting)
1524	set _settings(-outline) 0
1525	} else {
1526	set _settings(-heightmapscale) 0
1527	set _settings(-lighting) 0
1528	set _settings(-opacity) 100
1529	set _settings(-outline) $_settings(-saveoutline)
1530	}
1531	InitSettings -lighting -opacity -outline
1532	set scale [GetHeightmapScale]
1533	# Have to set the datasets individually because we are
1534	# tracking them in _comp2scale.
1535	foreach dataset [CurrentDatasets -all] {
1536	SendCmd "heightmap heightscale $scale $dataset"
1537	set _comp2scale($dataset) $scale
1538	}
1539	if { $bool } {
1540	$itk_component(lighting) configure -state normal
1541	$itk_component(opacity) configure -state normal
1542	$itk_component(scale) configure -state normal
1543	$itk_component(opacity_l) configure -state normal
1544	$itk_component(scale_l) configure -state normal
1545	$itk_component(outline) configure -state disabled
1546	if {$_view(-ortho)} {
1547	SendCmd "camera mode ortho"
1548	} else {
1549	SendCmd "camera mode persp"
1550	}
1551	} else {
1552	$itk_component(lighting) configure -state disabled
1553	$itk_component(opacity) configure -state disabled
1554	$itk_component(scale) configure -state disabled
1555	$itk_component(opacity_l) configure -state disabled
1556	$itk_component(scale_l) configure -state disabled
1557	$itk_component(outline) configure -state normal
1558	SendCmd "camera mode image"
1559	}
1560	if {$_settings(-stretchtofit)} {
1561	if {$scale == 0} {
1562	SendCmd "camera aspect window"
1563	} else {
1564	SendCmd "camera aspect square"
1565	}
1566	}
1567	ResetAxes
1568	if { $bool } {
1569	set q [ViewToQuaternion]
1570	$_arcball quaternion $q
1571	SendCmd "camera orient $q"
1572	} else {
1573	bind $c <ButtonPress-1> {}
1574	bind $c <B1-Motion> {}
1575	bind $c <ButtonRelease-1> {}
1576	}
1577	Zoom reset
1578	# Fix the mouse bindings for rotation/panning and the
1579	# camera mode. Ideally we'd create a bindtag for these.
1580	if { $bool } {
1581	# Bindings for rotation via mouse
1582	bind $c <ButtonPress-1> \
1583	[itcl::code $this Rotate click %x %y]
1584	bind $c <B1-Motion> \
1585	[itcl::code $this Rotate drag %x %y]
1586	bind $c <ButtonRelease-1> \
1587	[itcl::code $this Rotate release %x %y]
1588	}
1589	StopBufferingCommands
1590	}
1591	"-isolinecolor" {
1592	set color [$itk_component(isolinecolor) value]
1593	if { $color == "none" } {
1594	if { $_settings(-isolinesvisible) } {
1595	SendCmd "heightmap isolines 0"
1596	set _settings(-isolinesvisible) 0
1597	}
1598	} else {
1599	if { !$_settings(-isolinesvisible) } {
1600	SendCmd "heightmap isolines 1"
1601	set _settings(-isolinesvisible) 1
1602	}
1603	SendCmd "heightmap isolinecolor [Color2RGB $color]"
1604	}
1605	DrawLegend
1606	}
1607	"-isolinesvisible" {
1608	set bool $_settings($what)
1609	SendCmd "heightmap isolines $bool"
1610	DrawLegend
1611	}
1612	"-legendvisible" {
1613	if { !$_settings($what) } {
1614	$itk_component(view) delete legend
1615	}
1616	DrawLegend
1617	}
1618	"-lighting" {
1619	if { $_settings(-isheightmap) } {
1620	set _settings(-savelighting) $_settings($what)
1621	set bool $_settings($what)
1622	SendCmd "heightmap lighting $bool"
1623	} else {
1624	SendCmd "heightmap lighting 0"
1625	}
1626	}
1627	"-numisolines" {
1628	set _settings($what) [$itk_component(numisolines) value]
1629	set _currentNumIsolines $_settings($what)
1630	UpdateContourList
1631	set _changed($what) 1
1632	SendCmd "heightmap contourlist [list $_contourList]"
1633	if {$_settings(-colormapdiscrete)} {
1634	set numColors [expr $_settings($what) + 1]
1635	SendCmd "colormap res $numColors"
1636	EventuallyRequestLegend
1637	} else {
1638	DrawLegend
1639	}
1640	}
1641	"-opacity" {
1642	set _changed($what) 1
1643	set val [expr $_settings($what) * 0.01]
1644	if { $_settings(-isheightmap) } {
1645	set _settings(-saveopacity) $_settings($what)
1646	SendCmd "heightmap opacity $val"
1647	} else {
1648	SendCmd "heightmap opacity 1.0"
1649	}
1650	}
1651	"-outline" {
1652	if { $_settings(-isheightmap) } {
1653	SendCmd "outline visible 0"
1654	} else {
1655	set _settings(-saveoutline) $_settings($what)
1656	set bool $_settings($what)
1657	SendCmd "outline visible $bool"
1658	}
1659	}
1660	"-stretchtofit" {
1661	set bool $_settings($what)
1662	if { $bool } {
1663	set heightScale [GetHeightmapScale]
1664	if {$heightScale == 0} {
1665	SendCmd "camera aspect window"
1666	} else {
1667	SendCmd "camera aspect square"
1668	}
1669	} else {
1670	SendCmd "camera aspect native"
1671	}
1672	Zoom reset
1673	}
1674	"-wireframe" {
1675	set bool $_settings($what)
1676	SendCmd "heightmap wireframe $bool"
1677	}
1678	"-xgrid" - "-ygrid" - "-zgrid" {
1679	set axis [string tolower [string range $what 1 1]]
1680	set bool $_settings($what)
1681	SendCmd "axis grid $axis $bool"
1682	}
1683	default {
1684	error "don't know how to fix $what"
1685	}
1686	}
1687	}
1688
1689	#
1690	# RequestLegend --
1691	#
1692	# Request a new legend from the server. The size of the legend
1693	# is determined from the height of the canvas.
1694	#
1695	# This should be called when
1696	# 1. A new current colormap is set.
1697	# 2. Window is resized.
1698	# 3. The limits of the data have changed. (Just need a redraw).
1699	# 4. Number of isolines have changed. (Just need a redraw).
1700	# 5. Legend becomes visible (Just need a redraw).
1701	#
1702	itcl::body Rappture::VtkHeightmapViewer::RequestLegend {} {
1703	set _legendPending 0
1704	set font "Arial 8"
1705	set w 12
1706	set lineht [font metrics $font -linespace]
1707	# color ramp height = (canvas height) - (min and max value lines) - 2
1708	set h [expr {$_height - 2 * ($lineht + 2)}]
1709	set _legendHeight $h
1710
1711	set fname $_curFldName
1712	if { [string match "component*" $fname] } {
1713	set title ""
1714	} else {
1715	if { [info exists _fields($fname)] } {
1716	foreach { title units } $_fields($fname) break
1717	if { $units != "" } {
1718	set title [format "%s (%s)" $title $units]
1719	}
1720	} else {
1721	set title $fname
1722	}
1723	}
1724	# If there's a title too, substract one more line
1725	if { $title != "" } {
1726	incr h -$lineht
1727	}
1728	if { $h < 1 } {
1729	return
1730	}
1731	# Set the legend on the first heightmap dataset.
1732	if { $_currentColormap != "" } {
1733	set cmap $_currentColormap
1734	if { ![info exists _colormaps($cmap)] } {
1735	BuildColormap $cmap
1736	set _colormaps($cmap) 1
1737	}
1738	#SendCmd "legend $cmap scalar $_curFldName {} $w $h 0"
1739	SendCmd "legend2 $cmap $w $h"
1740	}
1741	}
1742
1743	#
1744	# ResetAxes --
1745	#
1746	# Set axis z bounds and range
1747	#
1748	itcl::body Rappture::VtkHeightmapViewer::ResetAxes {} {
1749	if { ![info exists _limits($_curFldName)]} {
1750	SendCmd "dataset maprange all"
1751	SendCmd "axis autorange z on"
1752	SendCmd "axis autobounds z on"
1753	return
1754	}
1755	foreach { xmin xmax } $_limits(x) break
1756	foreach { ymin ymax } $_limits(y) break
1757	foreach { vmin vmax } $_limits($_curFldName) break
1758
1759	global tcl_precision
1760	set tcl_precision 17
1761	set xr [expr $xmax - $xmin]
1762	set yr [expr $ymax - $ymin]
1763	set vr [expr $vmax - $vmin]
1764	set r [expr ($yr > $xr) ? $yr : $xr]
1765	if { $vr < 1.0e-17 } {
1766	set dataScale 1.0
1767	} else {
1768	set dataScale [expr $r / $vr]
1769	}
1770	set heightScale [GetHeightmapScale]
1771	set bmin [expr $heightScale * $dataScale * $vmin]
1772	set bmax [expr $heightScale * $dataScale * $vmax]
1773	if {$heightScale > 0} {
1774	set zpos [expr - $bmin]
1775	SendCmd "heightmap pos 0 0 $zpos"
1776	} else {
1777	SendCmd "heightmap pos 0 0 0"
1778	}
1779	set bmax [expr $bmax - $bmin]
1780	set bmin 0
1781	SendCmd "dataset maprange explicit $_limits($_curFldName) $_curFldName"
1782	SendCmd "axis bounds z $bmin $bmax"
1783	SendCmd "axis range z $_limits($_curFldName)"
1784	}
1785
1786	#
1787	# SetCurrentColormap --
1788	#
1789	itcl::body Rappture::VtkHeightmapViewer::SetCurrentColormap { name } {
1790	# Keep track of the colormaps that we build.
1791	if { $name != "none" && ![info exists _colormaps($name)] } {
1792	BuildColormap $name
1793	set _colormaps($name) 1
1794	}
1795	set _currentColormap $name
1796	SendCmd "heightmap colormap $_currentColormap"
1797	}
1798
1799	#
1800	# BuildColormap --
1801	#
1802	# Build the designated colormap on the server.
1803	#
1804	itcl::body Rappture::VtkHeightmapViewer::BuildColormap { name } {
1805	set cmap [ColorsToColormap $name]
1806	if { [llength $cmap] == 0 } {
1807	set cmap "0.0 0.0 0.0 0.0 1.0 1.0 1.0 1.0"
1808	}
1809	set amap "0.0 1.0 1.0 1.0"
1810	SendCmd "colormap add $name { $cmap } { $amap }"
1811	}
1812
1813	# ----------------------------------------------------------------------
1814	# CONFIGURATION OPTION: -mode
1815	# ----------------------------------------------------------------------
1816	itcl::configbody Rappture::VtkHeightmapViewer::mode {
1817	switch -- $itk_option(-mode) {
1818	"heightmap" {
1819	set _settings(-isheightmap) 1
1820	}
1821	"contour" {
1822	set _settings(-isheightmap) 0
1823	}
1824	default {
1825	error "unknown mode settings \"$itk_option(-mode)\""
1826	}
1827	}
1828	if { !$_reset } {
1829	AdjustSetting -isheightmap
1830	}
1831	}
1832
1833	# ----------------------------------------------------------------------
1834	# CONFIGURATION OPTION: -plotbackground
1835	# ----------------------------------------------------------------------
1836	itcl::configbody Rappture::VtkHeightmapViewer::plotbackground {
1837	if { [isconnected] } {
1838	set rgb [Color2RGB $itk_option(-plotbackground)]
1839	if { !$_reset } {
1840	SendCmd "screen bgcolor $rgb"
1841	}
1842	$itk_component(view) configure -background $itk_option(-plotbackground)
1843	}
1844	}
1845
1846	# ----------------------------------------------------------------------
1847	# CONFIGURATION OPTION: -plotforeground
1848	# ----------------------------------------------------------------------
1849	itcl::configbody Rappture::VtkHeightmapViewer::plotforeground {
1850	if { [isconnected] } {
1851	set rgb [Color2RGB $itk_option(-plotforeground)]
1852	if { !$_reset } {
1853	SendCmd "axis color all $rgb"
1854	SendCmd "outline color $rgb"
1855	}
1856	}
1857	}
1858
1859	itcl::body Rappture::VtkHeightmapViewer::BuildContourTab {} {
1860
1861	set fg [option get $itk_component(hull) font Font]
1862	#set bfg [option get $itk_component(hull) boldFont Font]
1863
1864	set inner [$itk_component(main) insert end \
1865	-title "Contour/Surface Settings" \
1866	-icon [Rappture::icon contour2]]
1867	$inner configure -borderwidth 4
1868
1869	checkbutton $inner.legend \
1870	-text "Legend" \
1871	-variable [itcl::scope _settings(-legendvisible)] \
1872	-command [itcl::code $this AdjustSetting -legendvisible] \
1873	-font "Arial 9"
1874
1875	checkbutton $inner.wireframe \
1876	-text "Wireframe" \
1877	-variable [itcl::scope _settings(-wireframe)] \
1878	-command [itcl::code $this AdjustSetting -wireframe] \
1879	-font "Arial 9"
1880
1881	itk_component add lighting {
1882	checkbutton $inner.lighting \
1883	-text "Enable Lighting" \
1884	-variable [itcl::scope _settings(-lighting)] \
1885	-command [itcl::code $this AdjustSetting -lighting] \
1886	-font "Arial 9"
1887	} {
1888	ignore -font
1889	}
1890	checkbutton $inner.edges \
1891	-text "Edges" \
1892	-variable [itcl::scope _settings(-edges)] \
1893	-command [itcl::code $this AdjustSetting -edges] \
1894	-font "Arial 9"
1895
1896	itk_component add outline {
1897	checkbutton $inner.outline \
1898	-text "Outline" \
1899	-variable [itcl::scope _settings(-outline)] \
1900	-command [itcl::code $this AdjustSetting -outline] \
1901	-font "Arial 9"
1902	} {
1903	ignore -font
1904	}
1905	checkbutton $inner.stretch \
1906	-text "Stretch to fit" \
1907	-variable [itcl::scope _settings(-stretchtofit)] \
1908	-command [itcl::code $this AdjustSetting -stretchtofit] \
1909	-font "Arial 9"
1910
1911	checkbutton $inner.isolines \
1912	-text "Isolines" \
1913	-variable [itcl::scope _settings(-isolinesvisible)] \
1914	-command [itcl::code $this AdjustSetting -isolinesvisible] \
1915	-font "Arial 9"
1916
1917	checkbutton $inner.colormapDiscrete \
1918	-text "Discrete Colormap" \
1919	-variable [itcl::scope _settings(-colormapdiscrete)] \
1920	-command [itcl::code $this AdjustSetting -colormapdiscrete] \
1921	-font "Arial 9"
1922
1923	itk_component add field_l {
1924	label $inner.field_l -text "Field" -font "Arial 9"
1925	} {
1926	ignore -font
1927	}
1928	itk_component add field {
1929	Rappture::Combobox $inner.field -width 10 -editable no
1930	}
1931	bind $inner.field <<Value>> \
1932	[itcl::code $this AdjustSetting -field]
1933
1934	label $inner.colormap_l -text "Colormap" -font "Arial 9"
1935	itk_component add colormap {
1936	Rappture::Combobox $inner.colormap -width 10 -editable no
1937	}
1938	$inner.colormap choices insert end [GetColormapList -includeNone]
1939	$itk_component(colormap) value $_settings(-colormap)
1940	bind $inner.colormap <<Value>> \
1941	[itcl::code $this AdjustSetting -colormap]
1942
1943	label $inner.isolinecolor_l -text "Isolines Color" -font "Arial 9"
1944	itk_component add isolinecolor {
1945	Rappture::Combobox $inner.isolinecolor -width 10 -editable no
1946	}
1947	$inner.isolinecolor choices insert end \
1948	"black" "black" \
1949	"blue" "blue" \
1950	"cyan" "cyan" \
1951	"green" "green" \
1952	"grey" "grey" \
1953	"magenta" "magenta" \
1954	"orange" "orange" \
1955	"red" "red" \
1956	"white" "white" \
1957	"none" "none"
1958
1959	$itk_component(isolinecolor) value $_settings(-isolinecolor)
1960	bind $inner.isolinecolor <<Value>> \
1961	[itcl::code $this AdjustSetting -isolinecolor]
1962
1963	label $inner.background_l -text "Background Color" -font "Arial 9"
1964	itk_component add background {
1965	Rappture::Combobox $inner.background -width 10 -editable no
1966	}
1967	$inner.background choices insert end \
1968	"black" "black" \
1969	"white" "white" \
1970	"grey" "grey"
1971
1972	$itk_component(background) value "white"
1973	bind $inner.background <<Value>> \
1974	[itcl::code $this AdjustSetting -background]
1975
1976	itk_component add opacity_l {
1977	label $inner.opacity_l -text "Opacity" -font "Arial 9"
1978	} {
1979	ignore -font
1980	}
1981	itk_component add opacity {
1982	::scale $inner.opacity -from 0 -to 100 -orient horizontal \
1983	-variable [itcl::scope _settings(-opacity)] \
1984	-showvalue off \
1985	-command [itcl::code $this AdjustSetting -opacity]
1986	}
1987	itk_component add scale_l {
1988	label $inner.scale_l -text "Scale" -font "Arial 9"
1989	} {
1990	ignore -font
1991	}
1992	itk_component add scale {
1993	::scale $inner.scale -from 0 -to 100 -orient horizontal \
1994	-variable [itcl::scope _settings(-heightmapscale)] \
1995	-showvalue off \
1996	-command [itcl::code $this AdjustSetting -heightmapscale]
1997	}
1998	label $inner.numisolines_l -text "Number of Isolines" -font "Arial 9"
1999	itk_component add numisolines {
2000	Rappture::Spinint $inner.numisolines \
2001	-min 0 -max 50 -font "arial 9"
2002	}
2003	$itk_component(numisolines) value $_settings(-numisolines)
2004	bind $itk_component(numisolines) <<Value>> \
2005	[itcl::code $this AdjustSetting -numisolines]
2006
2007	frame $inner.separator1 -height 2 -relief sunken -bd 1
2008	frame $inner.separator2 -height 2 -relief sunken -bd 1
2009
2010	blt::table $inner \
2011	0,0 $inner.field_l -anchor w -pady 2 \
2012	0,1 $inner.field -anchor w -pady 2 -fill x \
2013	1,0 $inner.colormap_l -anchor w -pady 2 \
2014	1,1 $inner.colormap -anchor w -pady 2 -fill x \
2015	2,0 $inner.isolinecolor_l -anchor w -pady 2 \
2016	2,1 $inner.isolinecolor -anchor w -pady 2 -fill x \
2017	3,0 $inner.background_l -anchor w -pady 2 \
2018	3,1 $inner.background -anchor w -pady 2 -fill x \
2019	4,0 $inner.numisolines_l -anchor w -pady 2 \
2020	4,1 $inner.numisolines -anchor w -pady 2 \
2021	5,0 $inner.stretch -anchor w -pady 2 -cspan 2 \
2022	6,0 $inner.edges -anchor w -pady 2 -cspan 2 \
2023	7,0 $inner.legend -anchor w -pady 2 -cspan 2 \
2024	8,0 $inner.colormapDiscrete -anchor w -pady 2 -cspan 2 \
2025	9,0 $inner.wireframe -anchor w -pady 2 -cspan 2\
2026	10,0 $inner.isolines -anchor w -pady 2 -cspan 2 \
2027	11,0 $inner.separator1 -padx 2 -fill x -cspan 2 \
2028	12,0 $inner.outline -anchor w -pady 2 -cspan 2 \
2029	13,0 $inner.separator2 -padx 2 -fill x -cspan 2 \
2030	14,0 $inner.lighting -anchor w -pady 2 -cspan 2 \
2031	15,0 $inner.opacity_l -anchor w -pady 2 \
2032	15,1 $inner.opacity -fill x -pady 2 \
2033	16,0 $inner.scale_l -anchor w -pady 2 -cspan 2 \
2034	16,1 $inner.scale -fill x -pady 2 -cspan 2 \
2035
2036	blt::table configure $inner r* c* -resize none
2037	blt::table configure $inner r17 c1 -resize expand
2038	}
2039
2040	itcl::body Rappture::VtkHeightmapViewer::BuildAxisTab {} {
2041
2042	set fg [option get $itk_component(hull) font Font]
2043	#set bfg [option get $itk_component(hull) boldFont Font]
2044
2045	set inner [$itk_component(main) insert end \
2046	-title "Axis Settings" \
2047	-icon [Rappture::icon axis2]]
2048	$inner configure -borderwidth 4
2049
2050	checkbutton $inner.visible \
2051	-text "Axes" \
2052	-variable [itcl::scope _settings(-axisvisible)] \
2053	-command [itcl::code $this AdjustSetting -axisvisible] \
2054	-font "Arial 9"
2055	checkbutton $inner.labels \
2056	-text "Axis Labels" \
2057	-variable [itcl::scope _settings(-axislabels)] \
2058	-command [itcl::code $this AdjustSetting -axislabels] \
2059	-font "Arial 9"
2060	label $inner.grid_l -text "Grid" -font "Arial 9"
2061	checkbutton $inner.xgrid \
2062	-text "X" \
2063	-variable [itcl::scope _settings(-xgrid)] \
2064	-command [itcl::code $this AdjustSetting -xgrid] \
2065	-font "Arial 9"
2066	checkbutton $inner.ygrid \
2067	-text "Y" \
2068	-variable [itcl::scope _settings(-ygrid)] \
2069	-command [itcl::code $this AdjustSetting -ygrid] \
2070	-font "Arial 9"
2071	checkbutton $inner.zgrid \
2072	-text "Z" \
2073	-variable [itcl::scope _settings(-zgrid)] \
2074	-command [itcl::code $this AdjustSetting -zgrid] \
2075	-font "Arial 9"
2076	checkbutton $inner.minorticks \
2077	-text "Minor Ticks" \
2078	-variable [itcl::scope _settings(-axisminorticks)] \
2079	-command [itcl::code $this AdjustSetting -axisminorticks] \
2080	-font "Arial 9"
2081
2082	label $inner.mode_l -text "Mode" -font "Arial 9"
2083
2084	itk_component add axisflymode {
2085	Rappture::Combobox $inner.mode -width 10 -editable no
2086	}
2087	$inner.mode choices insert end \
2088	"static_triad" "static" \
2089	"closest_triad" "closest" \
2090	"furthest_triad" "farthest" \
2091	"outer_edges" "outer"
2092	$itk_component(axisflymode) value $_settings(-axisflymode)
2093	bind $inner.mode <<Value>> [itcl::code $this AdjustSetting -axisflymode]
2094
2095	blt::table $inner \
2096	0,0 $inner.visible -anchor w -cspan 4 \
2097	1,0 $inner.labels -anchor w -cspan 4 \
2098	2,0 $inner.minorticks -anchor w -cspan 4 \
2099	4,0 $inner.grid_l -anchor w \
2100	4,1 $inner.xgrid -anchor w \
2101	4,2 $inner.ygrid -anchor w \
2102	4,3 $inner.zgrid -anchor w \
2103	5,0 $inner.mode_l -anchor w -padx { 2 0 } \
2104	5,1 $inner.mode -fill x -cspan 3
2105
2106	blt::table configure $inner r* c* -resize none
2107	blt::table configure $inner r7 c6 -resize expand
2108	blt::table configure $inner r3 -height 0.125i
2109	}
2110
2111	itcl::body Rappture::VtkHeightmapViewer::BuildCameraTab {} {
2112	set inner [$itk_component(main) insert end \
2113	-title "Camera Settings" \
2114	-icon [Rappture::icon camera]]
2115	$inner configure -borderwidth 4
2116
2117	label $inner.view_l -text "view" -font "Arial 9"
2118	set f [frame $inner.view]
2119	foreach side { front back left right top bottom } {
2120	button $f.$side -image [Rappture::icon view$side] \
2121	-command [itcl::code $this SetOrientation $side]
2122	Rappture::Tooltip::for $f.$side "Change the view to $side"
2123	pack $f.$side -side left
2124	}
2125
2126	blt::table $inner \
2127	0,0 $inner.view_l -anchor e -pady 2 \
2128	0,1 $inner.view -anchor w -pady 2
2129	blt::table configure $inner r0 -resize none
2130
2131	set labels { qx qy qz qw xpan ypan zoom }
2132	set row 1
2133	foreach tag $labels {
2134	label $inner.${tag}label -text $tag -font "Arial 9"
2135	entry $inner.${tag} -font "Arial 9" -bg white \
2136	-textvariable [itcl::scope _view(-$tag)]
2137	bind $inner.${tag} <Return> \
2138	[itcl::code $this camera set -${tag}]
2139	bind $inner.${tag} <KP_Enter> \
2140	[itcl::code $this camera set -${tag}]
2141	blt::table $inner \
2142	$row,0 $inner.${tag}label -anchor e -pady 2 \
2143	$row,1 $inner.${tag} -anchor w -pady 2
2144	blt::table configure $inner r$row -resize none
2145	incr row
2146	}
2147	checkbutton $inner.ortho \
2148	-text "Orthographic Projection" \
2149	-variable [itcl::scope _view(-ortho)] \
2150	-command [itcl::code $this camera set -ortho] \
2151	-font "Arial 9"
2152	blt::table $inner \
2153	$row,0 $inner.ortho -cspan 2 -anchor w -pady 2
2154	blt::table configure $inner r$row -resize none
2155	incr row
2156
2157	blt::table configure $inner c* -resize none
2158	blt::table configure $inner c2 -resize expand
2159	blt::table configure $inner r$row -resize expand
2160	}
2161
2162	#
2163	# camera --
2164	#
2165	itcl::body Rappture::VtkHeightmapViewer::camera {option args} {
2166	switch -- $option {
2167	"show" {
2168	puts [array get _view]
2169	}
2170	"set" {
2171	set what [lindex $args 0]
2172	set x $_view($what)
2173	set code [catch { string is double $x } result]
2174	if { $code != 0 \|\| !$result } {
2175	return
2176	}
2177	switch -- $what {
2178	"-ortho" {
2179	if {$_view($what)} {
2180	SendCmd "camera mode ortho"
2181	} else {
2182	SendCmd "camera mode persp"
2183	}
2184	}
2185	"-xpan" - "-ypan" {
2186	PanCamera
2187	}
2188	"-qx" - "-qy" - "-qz" - "-qw" {
2189	set q [ViewToQuaternion]
2190	$_arcball quaternion $q
2191	EventuallyRotate $q
2192	}
2193	"-zoom" {
2194	SendCmd "camera zoom $_view($what)"
2195	}
2196	}
2197	}
2198	}
2199	}
2200
2201	itcl::body Rappture::VtkHeightmapViewer::GetVtkData { args } {
2202	set bytes ""
2203	foreach dataobj [get] {
2204	foreach comp [$dataobj components] {
2205	set tag $dataobj-$comp
2206	set contents [$dataobj vtkdata $comp]
2207	append bytes "$contents\n"
2208	}
2209	}
2210	return [list .vtk $bytes]
2211	}
2212
2213	itcl::body Rappture::VtkHeightmapViewer::GetImage { args } {
2214	if { [image width $_image(download)] > 0 &&
2215	[image height $_image(download)] > 0 } {
2216	set bytes [$_image(download) data -format "jpeg -quality 100"]
2217	set bytes [Rappture::encoding::decode -as b64 $bytes]
2218	return [list .jpg $bytes]
2219	}
2220	return ""
2221	}
2222
2223	itcl::body Rappture::VtkHeightmapViewer::BuildDownloadPopup { popup command } {
2224	Rappture::Balloon $popup \
2225	-title "[Rappture::filexfer::label downloadWord] as..."
2226	set inner [$popup component inner]
2227	label $inner.summary -text "" -anchor w
2228	radiobutton $inner.vtk_button -text "VTK data file" \
2229	-variable [itcl::scope _downloadPopup(format)] \
2230	-font "Arial 9 " \
2231	-value vtk
2232	Rappture::Tooltip::for $inner.vtk_button "Save as VTK data file."
2233	radiobutton $inner.image_button -text "Image File" \
2234	-variable [itcl::scope _downloadPopup(format)] \
2235	-font "Arial 9 " \
2236	-value image
2237	Rappture::Tooltip::for $inner.image_button \
2238	"Save as digital image."
2239
2240	button $inner.ok -text "Save" \
2241	-highlightthickness 0 -pady 2 -padx 3 \
2242	-command $command \
2243	-compound left \
2244	-image [Rappture::icon download]
2245
2246	button $inner.cancel -text "Cancel" \
2247	-highlightthickness 0 -pady 2 -padx 3 \
2248	-command [list $popup deactivate] \
2249	-compound left \
2250	-image [Rappture::icon cancel]
2251
2252	blt::table $inner \
2253	0,0 $inner.summary -cspan 2 \
2254	1,0 $inner.vtk_button -anchor w -cspan 2 -padx { 4 0 } \
2255	2,0 $inner.image_button -anchor w -cspan 2 -padx { 4 0 } \
2256	4,1 $inner.cancel -width .9i -fill y \
2257	4,0 $inner.ok -padx 2 -width .9i -fill y
2258	blt::table configure $inner r3 -height 4
2259	blt::table configure $inner r4 -pady 4
2260	raise $inner.image_button
2261	$inner.vtk_button invoke
2262	return $inner
2263	}
2264
2265	#
2266	# SetObjectStyle --
2267	#
2268	# Set the style of the heightmap/contour object. This gets calls
2269	# for each dataset once as it is loaded. It can overridden by
2270	# the user controls.
2271	#
2272	#
2273	itcl::body Rappture::VtkHeightmapViewer::SetObjectStyle { dataobj comp } {
2274	# Parse style string.
2275	set tag $dataobj-$comp
2276	array set style {
2277	-color BCGYR
2278	-levels 10
2279	-opacity 1.0
2280	}
2281	set stylelist [$dataobj style $comp]
2282	if { $stylelist != "" } {
2283	array set style $stylelist
2284	}
2285	# This is too complicated. We want to set the colormap, number of
2286	# isolines and opacity for the dataset. They can be the default values,
2287	# the style hints loaded with the dataset, or set by user controls. As
2288	# datasets get loaded, they first use the defaults that are overidden
2289	# by the style hints. If the user changes the global controls, then that
2290	# overrides everything else. I don't know what it means when global
2291	# controls are specified as style hints by each dataset. It complicates
2292	# the code to handle aberrant cases.
2293
2294	if { $_changed(-opacity) } {
2295	set style(-opacity) [expr $_settings(-opacity) * 0.01]
2296	}
2297	if { $_changed(-numisolines) } {
2298	set style(-levels) $_settings(-numisolines)
2299	}
2300	if { $_changed(-colormap) } {
2301	set style(-color) $_settings(-colormap)
2302	}
2303	if { $_currentColormap == "" } {
2304	$itk_component(colormap) value $style(-color)
2305	}
2306	if { [info exists style(-stretchtofit)] } {
2307	set _settings(-stretchtofit) $style(-stretchtofit)
2308	AdjustSetting -stretchtofit
2309	}
2310	if { $_currentNumIsolines != $style(-levels) } {
2311	set _currentNumIsolines $style(-levels)
2312	set _settings(-numisolines) $_currentNumIsolines
2313	$itk_component(numisolines) value $_currentNumIsolines
2314	UpdateContourList
2315	DrawLegend
2316	}
2317	SendCmd "outline add $tag"
2318	SendCmd "outline color [Color2RGB $itk_option(-plotforeground)] $tag"
2319	SendCmd "outline visible $_settings(-outline) $tag"
2320	set scale [GetHeightmapScale]
2321	SendCmd "[list heightmap add contourlist $_contourList $scale $tag]"
2322	set _comp2scale($tag) $_settings(-heightmapscale)
2323	SendCmd "heightmap edges $_settings(-edges) $tag"
2324	SendCmd "heightmap wireframe $_settings(-wireframe) $tag"
2325	SetCurrentColormap $style(-color)
2326	set color [$itk_component(isolinecolor) value]
2327	SendCmd "heightmap isolinecolor [Color2RGB $color] $tag"
2328	SendCmd "heightmap lighting $_settings(-isheightmap) $tag"
2329	SendCmd "heightmap isolines $_settings(-isolinesvisible) $tag"
2330	SendCmd "heightmap surface $_settings(-colormapvisible) $tag"
2331	SendCmd "heightmap opacity $style(-opacity) $tag"
2332	set _settings(-opacity) [expr $style(-opacity) * 100.0]
2333	}
2334
2335	itcl::body Rappture::VtkHeightmapViewer::IsValidObject { dataobj } {
2336	if {[catch {$dataobj isa Rappture::Field} valid] != 0 \|\| !$valid} {
2337	return 0
2338	}
2339	return 1
2340	}
2341
2342	# ----------------------------------------------------------------------
2343	# USAGE: ReceiveLegend <colormap> <title> <min> <max> <size>
2344	#
2345	# Invoked automatically whenever the "legend" command comes in from
2346	# the rendering server. Indicates that binary image data with the
2347	# specified <size> will follow.
2348	# ----------------------------------------------------------------------
2349	itcl::body Rappture::VtkHeightmapViewer::ReceiveLegend { colormap title min max size } {
2350	#puts stderr "ReceiveLegend colormap=$colormap title=$title range=$min,$max size=$size"
2351	if { [isconnected] } {
2352	set bytes [ReceiveBytes $size]
2353	if { ![info exists _image(legend)] } {
2354	set _image(legend) [image create photo]
2355	}
2356	$_image(legend) configure -data $bytes
2357	#puts stderr "read $size bytes for [image width $_image(legend)]x[image height $_image(legend)] legend>"
2358	if { [catch {DrawLegend} errs] != 0 } {
2359	global errorInfo
2360	puts stderr "errs=$errs errorInfo=$errorInfo"
2361	}
2362	}
2363	}
2364
2365	#
2366	# DrawLegend --
2367	#
2368	# Draws the legend in the own canvas on the right side of the plot area.
2369	#
2370	itcl::body Rappture::VtkHeightmapViewer::DrawLegend {} {
2371	set fname $_curFldName
2372	set c $itk_component(view)
2373	set w [winfo width $c]
2374	set h [winfo height $c]
2375	set font "Arial 8"
2376	set lineht [font metrics $font -linespace]
2377
2378	if { [string match "component*" $fname] } {
2379	set title ""
2380	} else {
2381	if { [info exists _fields($fname)] } {
2382	foreach { title units } $_fields($fname) break
2383	if { $units != "" } {
2384	set title [format "%s (%s)" $title $units]
2385	}
2386	} else {
2387	set title $fname
2388	}
2389	}
2390	set x [expr $w - 2]
2391	if { !$_settings(-legendvisible) } {
2392	$c delete legend
2393	return
2394	}
2395	if { [$c find withtag "legend"] == "" } {
2396	set y 2
2397	# If there's a legend title, create a text item for the title.
2398	$c create text $x $y \
2399	-anchor ne \
2400	-fill $itk_option(-plotforeground) -tags "title legend" \
2401	-font $font
2402	if { $title != "" } {
2403	incr y $lineht
2404	}
2405	$c create text $x $y \
2406	-anchor ne \
2407	-fill $itk_option(-plotforeground) -tags "vmax legend" \
2408	-font $font
2409	incr y $lineht
2410	$c create image $x $y \
2411	-anchor ne \
2412	-image $_image(legend) -tags "colormap legend"
2413	$c create rectangle $x $y 1 1 \
2414	-fill "" -outline "" -tags "sensor legend"
2415	$c create text $x [expr {$h-2}] \
2416	-anchor se \
2417	-fill $itk_option(-plotforeground) -tags "vmin legend" \
2418	-font $font
2419	$c bind sensor <Enter> [itcl::code $this EnterLegend %x %y]
2420	$c bind sensor <Leave> [itcl::code $this LeaveLegend]
2421	$c bind sensor <Motion> [itcl::code $this MotionLegend %x %y]
2422	}
2423	$c delete isoline
2424	set x2 $x
2425	set iw [image width $_image(legend)]
2426	set ih [image height $_image(legend)]
2427	set x1 [expr $x2 - ($iw*12)/10]
2428	set color [$itk_component(isolinecolor) value]
2429
2430	# Draw the isolines on the legend.
2431	array unset _isolines
2432	if { $color != "none" && [info exists _limits($_curFldName)] &&
2433	$_settings(-isolinesvisible) && $_currentNumIsolines > 0 } {
2434
2435	foreach { vmin vmax } $_limits($_curFldName) break
2436	set range [expr double($vmax - $vmin)]
2437	if { $range <= 0.0 } {
2438	set range 1.0; # Min is greater or equal to max.
2439	}
2440	set tags "isoline legend"
2441	set offset [expr 2 + $lineht]
2442	if { $title != "" } {
2443	incr offset $lineht
2444	}
2445	foreach value $_contourList {
2446	set norm [expr 1.0 - (($value - $vmin) / $range)]
2447	set y1 [expr int(round(($norm * $ih) + $offset))]
2448	for { set off 0 } { $off < 3 } { incr off } {
2449	set _isolines([expr $y1 + $off]) $value
2450	set _isolines([expr $y1 - $off]) $value
2451	}
2452	$c create line $x1 $y1 $x2 $y1 -fill $color -tags $tags
2453	}
2454	}
2455
2456	$c bind title <ButtonPress> [itcl::code $this Combo post]
2457	$c bind title <Enter> [itcl::code $this Combo activate]
2458	$c bind title <Leave> [itcl::code $this Combo deactivate]
2459	# Reset the item coordinates according the current size of the plot.
2460	if { [info exists _limits($_curFldName)] } {
2461	foreach { vmin vmax } $_limits($_curFldName) break
2462	$c itemconfigure vmin -text [format %g $vmin]
2463	$c itemconfigure vmax -text [format %g $vmax]
2464	}
2465	set y 2
2466	# If there's a legend title, move the title to the correct position
2467	if { $title != "" } {
2468	$c itemconfigure title -text $title
2469	$c coords title $x $y
2470	incr y $lineht
2471	}
2472	$c coords vmax $x $y
2473	incr y $lineht
2474	$c coords colormap $x $y
2475	$c coords sensor [expr $x - $iw] $y $x [expr $y + $ih]
2476	$c raise sensor
2477	$c coords vmin $x [expr {$h - 2}]
2478	}
2479
2480	#
2481	# EnterLegend --
2482	#
2483	itcl::body Rappture::VtkHeightmapViewer::EnterLegend { x y } {
2484	SetLegendTip $x $y
2485	}
2486
2487	#
2488	# MotionLegend --
2489	#
2490	itcl::body Rappture::VtkHeightmapViewer::MotionLegend { x y } {
2491	Rappture::Tooltip::tooltip cancel
2492	set c $itk_component(view)
2493	set cw [winfo width $c]
2494	set ch [winfo height $c]
2495	if { $x >= 0 && $x < $cw && $y >= 0 && $y < $ch } {
2496	SetLegendTip $x $y
2497	}
2498	}
2499
2500	#
2501	# LeaveLegend --
2502	#
2503	itcl::body Rappture::VtkHeightmapViewer::LeaveLegend { } {
2504	Rappture::Tooltip::tooltip cancel
2505	.rappturetooltip configure -icon ""
2506	}
2507
2508	#
2509	# SetLegendTip --
2510	#
2511	itcl::body Rappture::VtkHeightmapViewer::SetLegendTip { x y } {
2512	set fname $_curFldName
2513	set c $itk_component(view)
2514	set w [winfo width $c]
2515	set h [winfo height $c]
2516	set font "Arial 8"
2517	set lineht [font metrics $font -linespace]
2518
2519	set ih [image height $_image(legend)]
2520	# Subtract off the offset of the color ramp from the top of the canvas
2521	set iy [expr $y - ($lineht + 2)]
2522
2523	if { [string match "component*" $fname] } {
2524	set title ""
2525	} else {
2526	if { [info exists _fields($fname)] } {
2527	foreach { title units } $_fields($fname) break
2528	if { $units != "" } {
2529	set title [format "%s (%s)" $title $units]
2530	}
2531	} else {
2532	set title $fname
2533	}
2534	}
2535	# If there's a legend title, increase the offset by the line height.
2536	if { $title != "" } {
2537	incr iy -$lineht
2538	}
2539
2540	# Make a swatch of the selected color
2541	if { [catch { $_image(legend) get 10 $iy } pixel] != 0 } {
2542	return
2543	}
2544
2545	if { ![info exists _image(swatch)] } {
2546	set _image(swatch) [image create photo -width 24 -height 24]
2547	}
2548	set color [eval format "\#%02x%02x%02x" $pixel]
2549	$_image(swatch) put black -to 0 0 23 23
2550	$_image(swatch) put $color -to 1 1 22 22
2551
2552	# Compute the value of the point
2553	if { [info exists _limits($fname)] } {
2554	foreach { vmin vmax } $_limits($fname) break
2555	set t [expr 1.0 - (double($iy) / double($ih-1))]
2556	set value [expr $t * ($vmax - $vmin) + $vmin]
2557	} else {
2558	set value 0.0
2559	}
2560	set tipx [expr $x + 15]
2561	set tipy [expr $y - 5]
2562	.rappturetooltip configure -icon $_image(swatch)
2563	if { [info exists _isolines($y)] } {
2564	Rappture::Tooltip::text $c [format "$title %g (isoline)" $_isolines($y)]
2565	} else {
2566	Rappture::Tooltip::text $c [format "$title %g" $value]
2567	}
2568	Rappture::Tooltip::tooltip show $c +$tipx,+$tipy
2569	}
2570
2571	# ----------------------------------------------------------------------
2572	# USAGE: _dropdown post
2573	# USAGE: _dropdown unpost
2574	# USAGE: _dropdown select
2575	#
2576	# Used internally to handle the dropdown list for this combobox. The
2577	# post/unpost options are invoked when the list is posted or unposted
2578	# to manage the relief of the controlling button. The select option
2579	# is invoked whenever there is a selection from the list, to assign
2580	# the value back to the gauge.
2581	# ----------------------------------------------------------------------
2582	itcl::body Rappture::VtkHeightmapViewer::Combo {option} {
2583	set c $itk_component(view)
2584	switch -- $option {
2585	post {
2586	foreach { x1 y1 x2 y2 } [$c bbox title] break
2587	set x1 [expr [winfo width $itk_component(view)] - [winfo reqwidth $itk_component(fieldmenu)]]
2588	set x [expr $x1 + [winfo rootx $itk_component(view)]]
2589	set y [expr $y2 + [winfo rooty $itk_component(view)]]
2590	tk_popup $itk_component(fieldmenu) $x $y
2591	}
2592	activate {
2593	$c itemconfigure title -fill red
2594	}
2595	deactivate {
2596	$c itemconfigure title -fill $itk_option(-plotforeground)
2597	}
2598	invoke {
2599	$itk_component(field) value $_curFldLabel
2600	AdjustSetting -field
2601	}
2602	default {
2603	error "bad option \"$option\": should be post, unpost, select"
2604	}
2605	}
2606	}
2607
2608	itcl::body Rappture::VtkHeightmapViewer::GetHeightmapScale {} {
2609	if { $_settings(-isheightmap) } {
2610	set val $_settings(-heightmapscale)
2611	set sval [expr { $val >= 50 ? double($val)/50.0 : 1.0/(2.0-(double($val)/50.0)) }]
2612	return $sval
2613	}
2614	return 0
2615	}
2616
2617	itcl::body Rappture::VtkHeightmapViewer::SetOrientation { side } {
2618	array set positions {
2619	front "0.707107 0.707107 0 0"
2620	back "0 0 0.707107 0.707107"
2621	left "0.5 0.5 -0.5 -0.5"
2622	right "0.5 0.5 0.5 0.5"
2623	top "1 0 0 0"
2624	bottom "0 1 0 0"
2625	}
2626	foreach name { -qw -qx -qy -qz } value $positions($side) {
2627	set _view($name) $value
2628	}
2629	set q [ViewToQuaternion]
2630	$_arcball quaternion $q
2631	SendCmd "camera orient $q"
2632	SendCmd "camera reset"
2633	set _view(-xpan) 0
2634	set _view(-ypan) 0
2635	set _view(-zoom) 1.0
2636	}
2637
2638	itcl::body Rappture::VtkHeightmapViewer::UpdateContourList {} {
2639	if {$_currentNumIsolines == 0} {
2640	set _contourList ""
2641	return
2642	}
2643	if { ![info exists _limits($_curFldName)] } {
2644	return
2645	}
2646	foreach { vmin vmax } $_limits($_curFldName) break
2647	set v [blt::vector create \#auto]
2648	$v seq $vmin $vmax [expr $_currentNumIsolines+2]
2649	$v delete end 0
2650	set _contourList [$v range 0 end]
2651	blt::vector destroy $v
2652	}

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

Download in other formats: