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<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2>Hi Dave,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2>Check out John Deck's blogg.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2><A
href="http://johndeck.blogspot.com/2005/09/overlaying-mercator-projected-wms.html">http://johndeck.blogspot.com/2005/09/overlaying-mercator-projected-wms.html</A></FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2>Google map's projection is Mercator, but uses lat long as
units (rather than metres). I think there's something that Mapserver does
with bounding boxes that other WMS don't do. I haven't successfully got a WMS
overlaid correctly using my mapserver WMSs (3.6.1 and 4.0). I've got close using
John Deck's method, but suffer tile alignment issues that don't affect other WMS
servers.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2>Might also be worth checking out Mapbuilder. I understand
they have a javascript Mercator/Lat long conversion function. It may be more
accurate than the one John Deck uses.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2>Steve</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=140103318-06112005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> UMN MapServer Users List
[mailto:MAPSERVER-USERS@LISTS.UMN.EDU] <B>On Behalf Of </B>Dave
Brown<BR><B>Sent:</B> November 6, 2005 9:38 AM<BR><B>To:</B>
MAPSERVER-USERS@LISTS.UMN.EDU<BR><B>Subject:</B> [UMN_MAPSERVER-USERS] Google
maps projections..<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial size=2>Could any one help
me setting the correct parameters for overlaying my vector maps (latlong wgs84)
over google maps imagery ?</FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial size=2>I have the right
bounds etc.. and when I dont specify the projections at all, the correct data is
overlayed but the projection is off.. </FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial size=2>I am experimenting
with mapserver as I want to move away from mapxtreme, which in
mapxtreme I used to render the map in mercator projection/Nad27 but whatever I
seem to do in mapserver, I get incorrect results..</FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial size=2>I using OGRINFO on
one of my MI .TAB files the projection info is...</FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2>GEOGCS["unnamed",<BR>
DATUM["WGS_1984",<BR> SPHEROID["WGS
84",6378137,298.257223563],<BR>
TOWGS84[0,0,0,0,0,0,0]],<BR>
PRIMEM["Greenwich",0],<BR>
UNIT["degree",0.0174532925199433]]<BR></FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial size=2>Any help greatly
appreciated. </FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2>Thanks,</FONT></SPAN></DIV>
<DIV><SPAN class=234333417-06112005><FONT face=Arial
size=2><BR>Dave.</DIV></FONT></SPAN><BR>
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