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Hello All,<br>
<br>
I just got an elevation tif file (w/aux,prj, and tfw) from the seamless
data distribution center: <a class="moz-txt-link-freetext" href="http://seamless.usgs.gov/">http://seamless.usgs.gov/</a>. I am still trying
to understand projections, I read through the tutorial and user manual
and looked through the proj4 documentation, but I am still not really
sure how to do this.<br>
<br>
Now, I know it uses Lambert Azimuthal Equal Area Projection. But, <b>how
do I represent this projection in a map file, and pass the needed
parameters into proj4? <br>
<br>
</b>I tried putting this in my Raster tif layer:<b><br>
<br>
</b> PROJECTION<br>
"proj=laea"<br>
"lon_0=100.00w"<br>
"lat_0=45.00n"<br>
END<br>
<br>
But it didn't work. Can some one help me with getting the correct
parameters to put in the map file?<br>
<br>
In the metadata it has:<br>
<dl>
<dt><em>Spatial_Domain:</em> </dt>
<dd>
<dl>
<dt><em>Bounding_Coordinates:</em> </dt>
<dd>
<dl>
<dt><em>West_Bounding_Coordinate:</em>-84.84957627
</dt>
<dt><em>East_Bounding_Coordinate:</em>-74.99646893
</dt>
<dt><em>North_Bounding_Coordinate:</em>37.47563559
</dt>
<dt><em>South_Bounding_Coordinate:</em>33.16490113</dt>
</dl>
</dd>
</dl>
</dd>
<dd>
<dl>
<></>
</dl>
</dd>
<dd>
<dl>
<></>
</dl>
</dd>
<dd>
<dl>
<></><br>
<></><dt><em>Spatial_Reference_Information:</em> </dt>
<dd>
<dl>
<dt><em>Horizontal_Coordinate_System_Definition:</em> </dt>
<dd>
<dl>
<dt><em>Planar:</em> </dt>
<dd>
<dl>
<dt><em>Map_Projection:</em> </dt>
<dd>
<dl>
<dt><em>Map_Projection_Name:</em> Lambert
Azimuthal Equal Area
</dt>
<dt><em>Lambert_Azimuthal_Equal_Area:</em> </dt>
<dd>
<dl>
<dt><em>Longitude_of_Projection_Center:</em>
-100.00
</dt>
<dt><em>Latitude_of_Projection_Center:</em>
45.00
</dt>
<dt><em>False_Easting:</em> 0.0
</dt>
<dt><em>False_Northing:</em> 0.0</dt>
</dl>
</dd>
</dl>
</dd>
<dt><em>Planar_Coordinate_Information:</em> </dt>
<dd>
<dl>
<dt><em>Planar_Coordinate_Encoding_Method:</em>
Row and column
</dt>
<dt><em>Coordinate_Representation:</em> </dt>
<dd>
<dl>
<dt><em>Abscissa_Resolution:</em> 1000.0
</dt>
<dt><em>Ordinate_Resolution:</em> 1000.0</dt>
</dl>
</dd>
<dt><em>Planar_Distance_Units:</em> Meters</dt>
</dl>
</dd>
</dl>
</dd>
<dt><em>Geodetic_Model:</em> </dt>
<dd>
<dl>
<dt><em>Horizontal_Datum_Name:</em> None
</dt>
<dt><em>Ellipsoid_Name:</em> Sphere
</dt>
<dt><em>Semi-major_Axis:</em> 6370997.0
</dt>
<dt><em>Denominator_of_Flattening_Ratio:</em> 1.0</dt>
</dl>
</dd>
</dl>
</dd>
</dl>
</dd>
<dt><br>
</dt>
</dl>
</dd>
</dl>
<br>
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