[Xastir-Dev] Projection problem in xastir w/ tiger maps?

[Gerry Creager N5JXS]

Been down this before.  TigerMaps, as we get 'em from the server, are in 
a sinusoidal projection.  I still don't know why.  Probably, because 
they could.

Until we either get GDAL implemented, or rehack the projection code 
Curt's done (and so well, for what we usually NEED, I might add) from 
PROJ4, we'll not be able to cleanly reproject them.

No, it's not UTM.

Cartographically yours,
Gerry

Wes Johnston wrote:
> I'm running tigermaps and noticed a north south anomaly when zoomed out 
> to 64 mile scale.  The track of a vehicle didn't match up to the shape 
> of the road he was appearantly on.  kd4tqz-14 drove thru the south 
> eastern end of NC today.... his track matches perfectly with HWY 74 when 
> it is centered N-S on my screen.  But as I scroll the map downward (and 
> make his track nearly go off the top of the screen, his track appears to 
> move "up" further than the map moved "up".   I have him tracked at 
> 18:49, 18:52 19:02 and 19:05 UTC.
> 
> Is this a UTM projection problem?
> 
> Wes
> 
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
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Office: 903A Eller Bldg, TAMU, College Station, TX 77843