KML

tag · 10-08-2010, 04:41 AM

We've added initial KML support. The KML entities that are implemented are:

KML Parsing (Pull parser, non-DOM)
KMZ
LineStyle
PolyStyle
IconStyle
LabelStyle
BalloonStyle
StyleMap
StyleURL
Placemark
Point Placemark
LineString Placemark
LinearRing Placemark
Polygon Placemark
MultiGeometry Placemark
ScreenOverlay
GroundOverlay

The BalloonStyle implementation is simple and does not yet provide the full capability the spec describes (HTML5, JavaScript, etc.). The Polygon implementation does not yet perform interior tessellation. There are other minor omissions, such as overlay draw order, that we'll fill in as we go along. We're also analyzing and optimizing performance of the implemented features.

Most WW shapes can now be captured as KML and there is a system in place for writing KML to files and streams, including Java's XMLStreamWriter.

The KML example is KMLViewer. Please study it to see how you'd incorporate KML into your WW app. There is also a new collection of pushpin images.

Please report problems you encounter with any of the above.

Next up are:

Document, Folder and List/Tree view
Camera/LookAt, View behavior
NetworkLink
NetworkLinkControl and Update
Region/LOD
Model
TBD...

Plus the inevitable (and interminable) cleanup.

Thanks for your patience. This has been a long time coming. Many thanks to our sponsors for funding this work.

glu29 · 10-19-2010, 03:19 PM

In the previous post, you talk about new objects that have been added in KML Viewer (LineStyle,PolyStyle, IconStyle, ...).
Can we download the version you are talking about ?

We contribute at some issues of the version in line in :
http://code.google.com/p/wwj-kml/source/list (r15 to r21).

But in this address, we can download a version about Oct 2008.

Can you help me to understand your post ?

Thansk by advance.

heidtmare · 10-19-2010, 06:11 PM

they've added kml support to the WWJ baseline.
Your link is to a 3rd party resource not controlled by the WWJ dev team.

Just download the newest WWJ src and you'll see all sorts of good KML stuff.

tag · 12-01-2010, 03:41 AM

ExtrudedPolygon is undergoing changes now, both to support high-resolution intersection calculations and for performance. If you could post the KML file that causes poor performance, that could greatly help us in our optimization efforts. It would also let us determine whether it's something simple and has a simple solution.

iliTheFallen · 12-01-2010, 04:47 PM

Hi, tag very thanks mate. i am adding the kml file...

what_nick · 12-02-2010, 01:16 AM

Do we have a scored (rather than implicit order) priority list of KML features to be implemented ? So far my priority would be NetworkLinks, which can be quite painful and recursive. I will start doing some parse fetch reparse things as an implementation. How deep networklinks are we going to allow ? Or no limits ?

Cheers,

whatnick.

iliTheFallen · 12-11-2010, 11:23 AM

Hi, tag.

i know this will sound a bit strange: but if i change the style of extruded polygons, its render speed is acceptable. do you think the alpha channel may impact the rendering speed?

i am sending the same kml file but with different style to you; mate.

Thanks for your replies in advance.

12-24-2010, 04:28 AM

I am Chinese,I'm going tu use it
I am sorry that My English is poor
WWJ is to support Chinese character set as UTF-8 or GBK?

chow kyo · 01-04-2011, 07:34 AM

the 3d model of kmz format will be support?

10-08-2010, 04:41 AM	#1
tag WWJ Technical Manager Join Date: May 2007 Location: Seattle Posts: 1,027	KML We've added initial KML support. The KML entities that are implemented are: KML Parsing (Pull parser, non-DOM) KMZ LineStyle PolyStyle IconStyle LabelStyle BalloonStyle StyleMap StyleURL Placemark Point Placemark LineString Placemark LinearRing Placemark Polygon Placemark MultiGeometry Placemark ScreenOverlay GroundOverlay The BalloonStyle implementation is simple and does not yet provide the full capability the spec describes (HTML5, JavaScript, etc.). The Polygon implementation does not yet perform interior tessellation. There are other minor omissions, such as overlay draw order, that we'll fill in as we go along. We're also analyzing and optimizing performance of the implemented features. Most WW shapes can now be captured as KML and there is a system in place for writing KML to files and streams, including Java's XMLStreamWriter. The KML example is KMLViewer. Please study it to see how you'd incorporate KML into your WW app. There is also a new collection of pushpin images. Please report problems you encounter with any of the above. Next up are: Document, Folder and List/Tree view Camera/LookAt, View behavior NetworkLink NetworkLinkControl and Update Region/LOD Model TBD... Plus the inevitable (and interminable) cleanup. Thanks for your patience. This has been a long time coming. Many thanks to our sponsors for funding this work.

10-19-2010, 03:19 PM	#2
glu29 Member Join Date: Oct 2007 Location: Brest - France Posts: 33	KML Viewer Update In the previous post, you talk about new objects that have been added in KML Viewer (LineStyle,PolyStyle, IconStyle, ...). Can we download the version you are talking about ? We contribute at some issues of the version in line in : http://code.google.com/p/wwj-kml/source/list (r15 to r21). But in this address, we can download a version about Oct 2008. Can you help me to understand your post ? Thansk by advance.

10-19-2010, 06:11 PM	#3
heidtmare Senior Member Join Date: Feb 2008 Location: Melbourne, FL, USA Posts: 675	they've added kml support to the WWJ baseline. Your link is to a 3rd party resource not controlled by the WWJ dev team. Just download the newest WWJ src and you'll see all sorts of good KML stuff. __________________ Member Join Date: Jul 2010 Posts: 34	Hi, tag. i added a KML Layer(RenderableLayer) with 3174 Placemarks. All of them are "ExtrudedPolygon"s. When WWJ tries to render them , the speed of rendering those polygons is too slow compared to Google Earth. What may cause that problem? Thanks for your reply in advance. P.S. I have set the maxActiveAltitude and i have also set the max heap size of jvm to 1024m(At the very first time, i had set the heap size to 512m and tried it too). Last edited by iliTheFallen; 11-30-2010 at 10:02 PM.

12-02-2010, 01:16 AM	#7
what_nick Worldwind Developer Join Date: Jan 2006 Location: Hobart, Australia Posts: 754	Implementation Priorities Do we have a scored (rather than implicit order) priority list of KML features to be implemented ? So far my priority would be NetworkLinks, which can be quite painful and recursive. I will start doing some parse fetch reparse things as an implementation. How deep networklinks are we going to allow ? Or no limits ? Cheers, whatnick. __________________ Coding This and That in World Wind and helping new people out, as long as they don't pester too much. Currently blogging at: http://whatnicklife.blogspot.com Working at: Aerometrex - http://aerometrex.com.au/blog/ Impact so far: Last edited by what_nick; 12-02-2010 at 01:39 AM.

12-24-2010, 04:28 AM	#9
Unregistered Guest Posts: n/a	WWJ is to support internationalization? I am Chinese,I'm going tu use it I am sorry that My English is poor WWJ is to support Chinese character set as UTF-8 or GBK?

12-01-2010, 03:41 AM	#5
tag WWJ Technical Manager Join Date: May 2007 Location: Seattle Posts: 1,027	ExtrudedPolygon is undergoing changes now, both to support high-resolution intersection calculations and for performance. If you could post the KML file that causes poor performance, that could greatly help us in our optimization efforts. It would also let us determine whether it's something simple and has a simple solution.

01-04-2011, 07:34 AM	#10
chow kyo Member Join Date: Dec 2010 Posts: 71	the 3d model of kmz format will be support?

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