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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello all,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m hoping someone can help with two problems I am
having, both of which are related to projections.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>1. My first problem is a map file I created in which I set
the Map object’s projection to "init=epsg:4267" (Lat/Long,
NAD27) and it contains a layer for a shapefile whose projection is "init=epsg:4269"
(Lat/Long, NAD83). When I try to display this layer using map mode with MapServer
on my local machine it works, but it will not work on our corporate server. All
other layers (that are also Lat/Long, NAD27) in the map file work. I am running
MapServer version 4.4.1 for Windows on my local machine, but am running 4.4.0 for
Linux on our corporate server. Is this a known problem? And, if so, is there a
workaround besides upgrading the 4.4.0 installation to 4.4.1? </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>2. I created the pei.map file listed below. The map’s
projection is set to "init=epsg:4267" (Lat/Long, NAD27) and it
contains a layer for a shapefile whose projection is also "init=epsg:4267"
(Lat/Long, NAD27). This layer also provides WMS support. </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>In a web browser, I use the following URLs to display the
data…first using map mode and second using WMS’ GetMap capabilities:</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>1. To display Map mode results (see MapMode.png for image):</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=FR style='font-size:10.0pt;
font-family:Arial'>http://wms1.agr.gc.ca/cgi-bin/://localhost/cgi-bin/mapsrv.exe?map=/ms4w/apps/OWS_TestData/map/pei.map&mode=map&layer=
peiLayer </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=FR style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>2. To display WMS GetMap image (see GetMap.png for
image):</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=FR style='font-size:10.0pt;
font-family:Arial'>http://wms1.agr.gc.ca/cgi-bin/://localhost/cgi-bin/mapsrv.exe?map=/ms4w/apps/OWS_TestData/map/pei.map&service=wms&version=1.1.1&request=GetMap&layers=
peiLayer </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=FR style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>When I compare the images generated by these two different
processes, the one generated for Map mode appears to display in lat/long,
however, the WMS GetMap data seems to be getting projected. To what projection,
I have no idea but the differences can be seen in the two attached images “MapMode.png”
and “GetMap.png.” This behaviour occurs on both my 4.4.1 and 4.4.0
servers. </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Why are the two outputs displaying the data differently?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any pointers that will help with these problems is greatly
appreciated.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Cheers,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>jtm</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>map</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> name </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>pei</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> status on</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> size 400 300</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> extent -64.601900
45.879485 -61.366990 47.179725</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> units dd</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'># units meters</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> shapepath "../data"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> imagecolor 255 255 255</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> imagetype png</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'># NAD27</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> projection</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "init=epsg:4267"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # projection</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> outputformat</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> name png</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> driver "GD/PNG"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> mimetype "image/png"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> imagemode RGB </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> extension "png"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # outputformat</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> web</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> imagepath "/ms4w/tmp/ms_tmp/"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> imageurl "/ms_tmp/"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> metadata</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wms_title" "PEI
Test Data"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wms_onlineresource"
"http://localhost/cgi-bin/mapsrv.exe?map=/ms4w/apps/OWS_TestData/map/pei.map"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wms_srs" "EPSG:4267"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wfs_title" "PEI
Test Data"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wfs_onlineresource" "http://localhost/cgi-bin/mapsrv.exe?map=/ms4w/apps/OWS_TestData/map/pei.map"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wfs_srs" "EPSG:4267"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # metadata</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # web</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> layer</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> name peiLayer</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> type polygon</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> status off</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> dump true</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> data </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>pei</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> metadata</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wms_title" "</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Prince Edward
Island</span></font><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> "wfs_title" "</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Prince
Edward Island</span></font><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>"</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # metadata</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> class</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> color -1 -1 -1</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> outlinecolor 0 0 0</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # class</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> end # peiLayer layer</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>end # map</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Joanne T. McGraw<br>
Spatial Data Visualization Specialist / Spécialiste en visualisation des
données spatiales<br>
Agriculture and </span></font><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Agri-Food</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Canada</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> /
Agriculture et Agroalimentaire </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Canada</span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
Telephone/Téléphone: (613) 694-2331 <br>
Facsimile/Télécopieur: (613) 759-1937<br>
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'>960 Carling Ave, #1136</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><br>
</span></font><font size=2 face=Arial><span style='font-size:10.0pt;font-family:
Arial'>Ottawa</span></font><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>, </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Ontario</span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><br>
K1A 0C6</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><a href="mailto:mcgrawj@agr.gc.ca">mcgrawj@agr.gc.ca</a></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><img border=0 width=278 height=24
src="cid:image001.jpg@01C54F2C.09B99600"
alt="Agriculture and Agri-Food Canada - Agriculture et Agroalimentaire Canada"></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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