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<DIV>Vincenzo,</DIV>
<DIV> </DIV>
<DIV>Here’s a radical suggestion for your consideration. Approach the
source of these coordinates and get projection, grid, ellipsoid and datum shift
parameters. Forensic sleuthing is great entertainment, but without
definitive documentation it’s just an informed guess.</DIV>
<DIV> </DIV>
<DIV>Noel</DIV>
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<DIV style="FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: 12pt">Noel Zinn,
Principal, Hydrometronics LLC<BR>+1-832-539-1472 (office), +1-281-221-0051
(cell)<BR>noel.zinn@hydrometronics.com (email)<BR>http://www.hydrometronics.com
(website)<BR></DIV>
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style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
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<DIV style="font-color: black"><B>From:</B> <A title=vincenzo.ampolo@gmail.com
href="mailto:vincenzo.ampolo@gmail.com">Vincenzo Ampolo</A> </DIV>
<DIV><B>Sent:</B> Wednesday, November 09, 2011 10:15 AM</DIV>
<DIV><B>To:</B> <A title=proj@lists.maptools.org
href="mailto:proj@lists.maptools.org">PROJ.4 and general Projections
Discussions</A> </DIV>
<DIV><B>Subject:</B> Re: [Proj] load arcSDE raw data from database and convert
tolat/long</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">On
11/09/2011 04:50 PM, Clifford J Mugnier wrote:
<BLOCKQUOTE cite=mid:B597ADFC46B67741B18EA6AA13613FF7026A6D00@email002.lsu.edu
type="cite">
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<DIV dir=ltr><FONT color=#000000 size=2
face="Times New Roman">Vincenzo,</FONT></DIV></DIV></BLOCKQUOTE>Dear
Clifford,<BR>
<BLOCKQUOTE cite=mid:B597ADFC46B67741B18EA6AA13613FF7026A6D00@email002.lsu.edu
type="cite">
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<DIV dir=ltr> </DIV>
<DIV dir=ltr><FONT size=2>Since you did not mention where you are, I had to
look up the coordinates to give you a clue. Since your coordinates are
near Rome, the local coordinate system is a Gauss-Boaga Transverse Mercator
referenced to the Monte Mario Datum of 1940 on the International
ellipsoid. For further details, see my column on the <STRONG>Italian
Republic</STRONG> in the August 2005 issue of <EM>Photogrammetric Engineering
& Remote Sensing</EM>. The pdf of that column may be downloaded from
the society's website at <A href="http://www.ASPRS.org"
moz-do-not-send="true">www.ASPRS.org</A>. </FONT></DIV>
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<DIV><FONT color=#000000 size=2 face="Times New Roman"><SPAN
style="FONT-SIZE: 10pt">
<DIV style="MARGIN: 0in 0in 0pt" class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; mso-ansi-language: de" lang=DE>Clifford J. Mugnier,
C.P., C.M.S.</SPAN></DIV></SPAN></FONT></DIV></DIV></BLOCKQUOTE>based on your
advice i surfed the web and found:<BR><BR><A
href="http://www.rigacci.org/wiki/doku.php/tecnica/gps_cartografia_gis/gauss_boaga_wgs84">http://www.rigacci.org/wiki/doku.php/tecnica/gps_cartografia_gis/gauss_boaga_wgs84</A><BR><BR>So
i tried to use pyproj to do the computation:<BR><BR>In [50]: p =
Proj(proj="tmerc", lat_0="0", lon_0="9", k="0.9996", x_0="1500000", y_0="0",
ellps="intl", units="m",
towgs84="-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68")<BR><BR>In [51]: x,y =
p(45.463681, 9.1881714)<BR><BR>In [52]: print x,y<BR>5790656.63279
1259107.51994<BR><BR>But it's still wrong, i should obtain something close to
X=2159820 Y=1457635<BR><BR>Any other suggestion?<BR><BR>Thanks for all.<BR><PRE class=moz-signature cols="72">--
Vincenzo Ampolo
<A class=moz-txt-link-freetext href="http://vincenzo-ampolo.net">http://vincenzo-ampolo.net</A>
<A class=moz-txt-link-freetext href="http://goshawknest.wordpress.com">http://goshawknest.wordpress.com</A></PRE>
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