Anyone know anything about DTED?
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DTED (Digital Terrain Elevation Data) I had a question ... and answered it myself. Can anyone give some pointers on possible pitfalls when reading in DTED data? nay
There's a bunch of us here who have worked with DEMs. Pitfalls I came up against: - poorly formatted data files (our files were ASCII so we could edit them) - incorrectely formatted data files (or using the wrong format version - ours changed every 6 months in some cases) - missing data points - issues with the direction of flow of the data points (are they stored top-down, bottom up, contour by contour...?) - out of memory conditions with really large data files cheers, Chris Maunder
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DTED (Digital Terrain Elevation Data) I had a question ... and answered it myself. Can anyone give some pointers on possible pitfalls when reading in DTED data? nay
Yeah, like Chris M said, a bunch of us have worked with DEMs X|. His answers were correct. Sorry I have nothing useful to add. :) Chris Richardson You can stash and you can seize In dreams begin, responsibilities
U2 - Acrobat[^]
Stop being PC and accounting for everyone and his momma's timeframe. Just enjoy your :beer: - Rohit Sinha in the content-challenged thread -
There's a bunch of us here who have worked with DEMs. Pitfalls I came up against: - poorly formatted data files (our files were ASCII so we could edit them) - incorrectely formatted data files (or using the wrong format version - ours changed every 6 months in some cases) - missing data points - issues with the direction of flow of the data points (are they stored top-down, bottom up, contour by contour...?) - out of memory conditions with really large data files cheers, Chris Maunder
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There's a bunch of us here who have worked with DEMs. Pitfalls I came up against: - poorly formatted data files (our files were ASCII so we could edit them) - incorrectely formatted data files (or using the wrong format version - ours changed every 6 months in some cases) - missing data points - issues with the direction of flow of the data points (are they stored top-down, bottom up, contour by contour...?) - out of memory conditions with really large data files cheers, Chris Maunder
Chris Maunder wrote: - missing data points Jay: Hey look! A mountain Bob: Hmmm, not in our poorly-formatted-ASCII-data file Jay: Ahh, ok, no problem then. The mountain does not exist then, data file says so ... ... Bob: Jay... Jay: Bob? Bob: I think we are flying upside down Jay: What makes you think that, Bob? Bob: Just reached the EOF and it has a disclaimer "All co-ords in reverse notation" Jay: Ahh Bob: Shit...
Paul Watson
Bluegrass
Cape Town, South AfricaMacbeth muttered: I am in blood / Stepped in so far, that should I wade no more, / Returning were as tedious as go o'er Shog9: Paul "The human happy pill" Watson