<DIV>Thanks Frank</DIV>
<DIV>Look, All the information will be in utm projection, and I just have used two of this layer to test this matter of the projection.</DIV>
<DIV>And also I would like that the map show the coordinates in UTM, I already know the extent of the map: <FONT size=2>
<P>EXTENT 245892.718 1435130.25 915200.00 1827780.00</P></FONT></DIV>
<DIV>I did set the map projection with the line you gave me</DIV>
<DIV>PROJECTION<BR> "+proj=utm +zone=16 +datum=NAD27"<BR>END</DIV>
<DIV>and also I wrote this for each layer object, but I still have problems with the map, any clue?,</DIV>
<DIV>Jose Luis</DIV>
<DIV> </DIV>
<DIV>On Wed, 5 Jan 2005 13:36:02 -0800, Jose Luis Portillo<BR><<A href="mailto:jporti68@yahoo.com">jporti68@yahoo.com</A>> wrote:<BR>> Hello All<BR>> Before I had work with proj=latlong data and had not problem, but now <BR>I am<BR>> working with data which is in utm, zone 16, north, datum = nad27 and <BR>I am<BR>> having problems, the data just doesn't appear in the map.<BR>> Can someone tell me which could be the right parameters that I need <BR>for this<BR>> projection and the place where I should put this information within <BR>the .map</DIV>
<DIV>Jose, </DIV>
<DIV>For a projection block, you might use:</DIV>
<DIV>PROJECTION<BR> "+proj=utm +zone=16 +datum=NAD27"<BR>END</DIV>
<DIV>You would place this on any LAYER objects that are in this<BR>coordinate system. Is your overall map display going to be in<BR>UTM as well, or are you needing MapServer to reproject to <BR>lat/long? </DIV>
<DIV>The most common problems are mixups in the coordinates<BR>(for instance, using lat/long angular values when UTM values<BR>should be used or vice versa), but more generally you need<BR>to examine the extents of your datasets fairly carefully. </DIV>
<DIV>If you know the bounds in UTM of a dataset, you can reproject<BR>it to lat/long with the proj.exe program (part of PROJ.4 ... not<BR>always distributed wtih MapServer though). </DIV>
<DIV>eg.</DIV>
<DIV>proj -I +proj=utm +zone=11 +datum=NAD27 << EOF<BR>? 400000 3700000<BR>? EOF<BR>118d4'32.742"W 33d26'11.277"N</DIV>
<DIV>I hope this is somewhat helpful.</DIV>
<DIV>Best regards,</DIV><p>__________________________________________________<br>Do You Yahoo!?<br>Tired of spam? Yahoo! Mail has the best spam protection around <br>http://mail.yahoo.com