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Re: [Therion] Cave Overlays on Google Maps Web Sites
From: |
Julian Todd |
Subject: |
Re: [Therion] Cave Overlays on Google Maps Web Sites |
Date: |
Sun, 28 Jan 2007 18:44:52 +0000 |
User-agent: |
Thunderbird 1.5.0.9 (Windows/20061207) |
Martin Sluka wrote:
> On 27.1.2007, at 22:09, Bill Chadwick wrote:
>
>
>> It is quite easy to create a web page that shows a cave survey
>> overlay on
>> top of Google / Virtual Earth maps.
>>
>
> Good work!
>
> There is only one problem - google doesn't calculate with underground
> in 3D - so you may not see the vertical dependencies, the caves are
> always on surface.
>
> Martin
>
It looks like simultaneous invention all round. I'm doing something on
this too. I think it should work for any paper survey that you can scan
and upload, not just computerized ones output from therion or tunnel. I
have a server which can do tile cutting of a large bitmap of a cave
survey. It's going to be important to create a mask of transparencies
so you can see it overlayed without all the whitespace outside of the
cave passage.
Julian T.
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