Re: dted or whatever

Hi David,

On Tuesday, February 26, 2002, at 10:08 AM, Marklund David wrote:

> Hi all,
> I would like to create a terrain-level-layer in some way. I have tried
> with DTEDLayer but can not
> get it to work.

Did you see the new entries on the FAQ page about setting up the
DTEDLayer?

> My application must also be 'downloadable', so the data must
> not be too large as the dted data seems to be.

What level of data are you using, and what scale of map are you trying
to display. If you are zoomed out past 1:4M, you can use level 0 data,
which is about 68k per 1 degree x 1degree file.

> Does anyone have any code snippets/dted-data that works which I can
> have a
> look at ?
>
> Is there any other way to create such layers ?

You could use the OMGrid object, but you'd have to write a
OMGridGenerator to display the data in the same way that the DTEDFrame
does it. I haven't had time to convert the DTEDFrame code into
OMGridGenerators, but hopefully that will be something for the future to
make this easier for other elevation data types to be rendered.

Cheers,

Don

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, dietrick@bbn.com
BBN Technologies, Cambridge, MA
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

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