Microsoft Virtual Earth (improved)

[Omega]

I've created a working Virtual Earth layer, based on the TiledImageLayer and BasicTiledImageLayer by Tom Gaskins. It works much the same way, but calculates the tile and subtile sectors differently. It also reprojects the Virtual Earth images (mercator) slightly, so they fit with the World Wind tiles (plate carrée).

It shouldn't take too much modification to create a Google Earth version too.

Hope this is of use to somebody

[TomServo]

Looks good. But I would not recommend a Google Earth version... Google does not like to share.

[patmurris]

An Open Street Map version based on their 'slippy map' Mercator version would be great as it is much more up to date then the WMS version we actually use in the OpenStreetMapLayer.

[vash]

Thank you omega! This is very useful for me.
I've used your code to create a new OpenStreetMap layer that uses the 'slippy map' Mercator version instead of the WMS version.

Edit : your implementation works great but i have the impression that the data are a little blurry. I think that the render could be far better if WorldWind could display tiles with better resolution but i don't know how to tune that.

[patmurris]

This is probably a matter of level selection. I haven't looked at the code yet, but it happens in the needToSplit() method of BasicTiledImageLayer.

[adanecito]

Oh just great just when I finished coding/testing/releaseing my special icon management feature you guys throw something tempting on the forum.

When's a person going to get some sleep? Just no respect I tell you for one's sleep quota.

Okay something interesting for me to think about for MyUniPortal. I will probably have it done by say 4:00AM tomorrow.

Thanks (really),
Tony Anecito
Founder,
MyUniPortal
http://www.myuniportal.com

[Omega]

Originally Posted by vash

Edit : your implementation works great but i have the impression that the data are a little blurry. I think that the render could be far better if WorldWind could display tiles with better resolution but i don't know how to tune that.

Thanks vash for the OpenStreetMap layer!

I believe the reason the tiles look blurry is because the VirtualEarth and OpenStreetMap tiles are 256x256, whereas the NASA tiles are 512x512. One way to fix this would be to change the needToSplit() function, as Pat Murris suggested. Another way would be to call the function setSplitScale(double) in the layer's constructor. The default World Wind splitScale is 0.9: I have found that 1.3 is a good value for the Virtual Earth layer.

The VirtualEarthLayer constructor would now look like this:

	public VirtualEarthLayer()
	{
		super(makeLevels());
		setSplitScale(1.3);
	}

This will fix the blurriness. I have updated the code in the first post.

[bull]

Doh its Java and not for .NET, good work though .

[TomServo]

Originally Posted by adanecito

Oh just great just when I finished coding/testing/releaseing my special icon management feature you guys throw something tempting on the forum.

When's a person going to get some sleep? Just no respect I tell you for one's sleep quota.

Okay something interesting for me to think about for MyUniPortal. I will probably have it done by say 4:00AM tomorrow.

Thanks (really),
Tony Anecito
Founder,
MyUniPortal
http://www.myuniportal.com

Sleep is for the weak!

All need is a 2 hour nap before going into work tonight... Only working till 6am.. so I will be checking for your update at 6:30am.

[patmurris]

Would that work for the French Geoportail?