Sorry for being stupid but what exactly goes into the geog_data.txt file? I have tired putting the extent of the original but this does not work.<br><br><div><span class="gmail_quote">On 7/11/07, <b class="gmail_sendername">
Gerald I. Evenden</b> <<a href="mailto:geraldi.evenden@gmail.com">geraldi.evenden@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Tuesday 10 July 2007 11:10 pm, Bradley Mclain wrote:<br>> Ok what I have done is made a custom projection and I want to get the new<br>> extent for my data.<br>><br>> The original projection:<br>> "# GDA94 / MGA zone 55
<br>> <28355> +proj=utm +zone=55 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0<br>> +units=m +no_defs <>"<br>><br>> The custom projection:<br>> <41002> +proj=merc +lat_ts=0 +lon_0=0 +k=
1.0 +x_0=0 +y_0=0 +a= 6378137.0<br>> +b= 6378137.0 +units=m <><br>><br>> I understand that this must be done by console commands or something but I<br>> have no idea how.<br>><br>> Brad<br><br>If you are using proj or lproj just execute the command:
<br><br>proj +proj=merc +a= 6378137.0 +b= 6378137.0<br><br>or<br><br>lproj +proj=merc +a= 6378137.0 +b= 6378137.0<br><br>I edited out all the superfluous material. Then follow the above commands<br>with longitude latitude pairs and Cartesian will be output.
<br><br>More appropriately create a file of your geographic coordinates in file<br>geog_data.txt and do:<br><br>proj +proj=merc +a= 6378137.0 +b= 6378137.0 <geog_data.txt >results.txt<br><br>--<br>The whole religious complexion of the modern world is due
<br>to the absence from Jerusalem of a lunatic asylum.<br>-- Havelock Ellis (1859-1939) British psychologist<br>_______________________________________________<br>Proj mailing list<br><a href="mailto:Proj@lists.maptools.org">
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