Holy crap! I guess the raw data is out there... *REALLY* raw. I was
envisioning some beastly software that puts it all together. I'm sure there is, but
it isn't cheap, to be sure....

I stand corrected in two ways... that it's not available, and that it's easier
to deal with than bitmaps...

BTW, what kind of data is the NED ADF?

-Cory

Kyler Laird wrote:
: writes:

: The original data that was used to create the charts. Someone, somewhere has
: layered data. Basically:

: Land TOPO +
: http://aviationtoolbox.org/raw_data/USGS/NED/

: TOPO Color +

: That shouldn't be hard to choose. The (scanned) sectionals aren't even
: consistent so you might as well select your own.

: Water +
: http://aviationtoolbox.org/raw_data/Census/

: Airports +
: http://aviationtoolbox.org/old/ATA-1...ats/Apt_rf.txt

: Airspace +
: http://aviationtoolbox.org/old/ATA-1...ats/Sua_rf.txt

: VOR stations +
: http://aviationtoolbox.org/old/ATA-1...ats/Nav_rf.txt

: VOR compass roses +

: Which is it - a VOR (declination) or compass (variation) rose that you
: want? You should be able to calculate either, at least as well as
: anyone else does them.

: Victor Airways +
: http://aviationtoolbox.org/old/ATA-1...ats/Awy_rf.txt

: Antennas +
: Power lines +...
: http://www.naco.faa.gov/index.asp?xm.../digital/daicd
: I'll be happy to subscribe to this if there's interest.

: With that (and the underlying coordinates), one could build an online chart
: and select only the desired visible components in the desired location.

: Let me know when you've got it.

: Having vector
: art for things as simple as extras on a chart (text, circles, straight lines) would be
: easier to deal with when zoomed in than HUGE bitmapped files.

: Easier for whom? The bitmaps are fairly simple to manipulate and they
: don't require a really smart/fast monkey to perform the layout of the
: data.

: Someone's got it... or
: else they'd have to get a artists to draw another little antenna icon everytime one
: sprouts up.

: Yeah, and we know *that* can't be. If they did it by hand you'd have
: error that would be obvious when the same antenna(/road/powerline/...)
: is depicted on two sectionals that overlap.
: https://aviationtoolbox.org/Members/...selected.y=297
: Or it could just be buggy old software. They've been making sectionals
: for how many decades? That's some *old* software.

: --kyler

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