Author Topic: Support for users' Geotiffs  (Read 4469 times)

Jon Sundquist

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Support for users' Geotiffs
« on: February 20, 2007, 10:46:00 AM »
I would have thought this has come before, but a quick search doesn't show anything, but...

It is great that version 3.0 allows for user-supplied maps.  But they have to be user-calibrated, which works only to a certain extent.

It would be great if TF could use geotiffs (even if they had to be a specific projection) and then skip the user calibration.

I've got a ton of custom geotiffs (and create more as I need them ;-) and they are more useful than older aerial photos.  I've done this recently with Google Earth, where there are tools to create tiled/multiresolution user map overlays which are especially important as the aerials (actually satellites) that GE uses for my area are terrible.

For example, and since I know you folks are Mountain Bikers, here is a (map in progress) grand overview of our MTB stomping grounds in Western New York (Requires GE 4.0):

http://www.wnymba.org/static/maps/ny-pa/ny-pa-5.kml

I would love to be able to load maps like this into TF, and have the georeferencing done automatically from the geotiff tags or world file.  I realize tiling would be tough, but I could do that manually if needed.

Krein

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Support for users' Geotiffs
« Reply #1 on: February 20, 2007, 10:57:26 AM »
Agreed Jon, we hope to support geotiff so we can skip the calibration part.  It's just a matter of incorporating the libraries to read tifs.

Thanks for chiming in with the request.  Gets me thinking about it.

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Support for users' Geotiffs
« Reply #2 on: March 07, 2007, 07:54:02 PM »
While on the subject of importing user supplied maps, it would be an astronomically wonderful thing if I could import NOS/GEO files without having to convert them to JPG or something else and then re-calibrate them

Larry

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Support for users' Geotiffs
« Reply #3 on: March 09, 2007, 06:05:03 AM »
Quote (Jon Sundquist @ Feb. 20 2007,12:46)
For example, and since I know you folks are Mountain Bikers, here is a (map in progress) grand overview of our MTB stomping grounds in Western New York (Requires GE 4.0):

http://www.wnymba.org/static/maps/ny-pa/ny-pa-5.kml

Jon, great stuff!

How hard is to to make kml files like the one you posted? Do you have a link to instructions and the necessary tools to make these topographic overlays for GE?

Or maybe you could suddenly take a huge interest in the Washington Cascades.  '<img'>

Larry