Hi list,<br><br> I am trying to find the elevation values from a given SDTS Fileset. Although I am able to extract the elevation values for a given X,Y I am not sure as how one could extract them for a given Latitude , Longitude. A typical grand canyon SDTS transfer contains the following metadata<br>
<br>UPPER LEFT X=387335.000<br>UPPER LEFT Y=3998335.500<br>LOWER RIGHT X=398735.000<br>LOWER RIGHT Y=3984385.500<br>WEST LONGITUDE=112° 15' 07.12" W<br>NORTH LATITUDE=36° 07' 34.45" N<br>EAST LONGITUDE=112° 07' 24.71" W<br>
SOUTH LATITUDE=35° 59' 57.24" N<br>COVERED AREA=61.4 sq mi<br>NUM COLUMNS=381<br>NUM ROWS=466<br>PIXEL WIDTH=30 meters<br>PIXEL HEIGHT=30 meters<br clear="all"><br> The other thing that I am unable to understand is the UPPER LEFT X, UPPER LEFT Y. What kind of coordinate system is this ? <br>
<br>-- <br>Karthik<br><br>