[Xastir-Dev] problem with drg geotiff maps

[J. Lance Cotton]

Yes, Curt, I am using the latest CVS (just tried again with THE latest cvs)

Segfaults when the .tif and .fgd file are readable. chmod 600 on them 
and no segfaults.

All options compiled in to xastir (shapefile, festival, geotiff, etc.)

Lance KJ5O

Curt Mills, WE7U wrote:

> On Sun, 27 Oct 2002, J. Lance Cotton wrote:
>
>
> >I have a problem with viewing GeoTIFF drg maps for my area. I think I
> >saw this problem several months ago, but didn't do anything about it
> >since I didn't need the maps.
> >
> >I figure it ought to be taken care of...
> >
> >I don't want to pay $$ now to download drg maps, so I found a public
> >site that has data for Texas, where I am. The DRG GeoTIFF files from:
> >http://www.tnris.state.tx.us/digital.htm
> >
> >cause Xastir to segfault when attempting to index them or draw them. For
> >a specific example, look at the "BRYAN EAST" block in Brazos County, TX
> >from the above website.
>
>
> Look at the FGD file for this map.  Here's the one section we
> try to use from that file:
>
> ---------------------------------------------------
>  Spatial_Domain:
>   Bounding_Coordinates:
>    West_Bounding_Coordinate: 96.3784
>    East_Bounding_Coordinate: 96.2464
>    North_Bounding_Coordinate: 30.75258
>    South_Bounding_Coordinate: 30.62242
> ---------------------------------------------------
>
>
> And here's the equivalent section for a USGS DRG fgd file:
>
> ---------------------------------------------------
>   Bounding Coordinates
>
> 1.5.1.1  WEST BOUNDING COORDINATE:  -122.000000
>
> 1.5.1.2  EAST BOUNDING COORDINATE:  -120.000000
>
> 1.5.1.3  NORTH BOUNDING COORDINATE:  48.000000
>
> 1.5.1.4  SOUTH BOUNDING COORDINATE:  47.000000
> ---------------------------------------------------
>
>
> We appear to parse both of them correctly, but check out where the
> numbers place the first one:  I think it's in China, right above
> Bhutan.  Not in Texas.  They forgot the '-' sign in front of the
> longitude.
>
> That's just the first problem, not the full solution for using these
> maps.  If you add the '-' sign, you get an error message from
> Xastir.
>
> Mine is not segfaulting while indexing it or while trying to draw
> it.  Are you using Xastir CVS?
>

-- 
J. Lance Cotton, KJ5O
Apple decided to charge money for my mac.com address so: 
joe at lightningflash.net
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