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<title>AutoCAD Map 3d 2011 FDO 3.5.0 BulkCopy Point from ShpFile to PostGIS
1.5.5 Table Coordinate Transformation Problem</title>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Karl,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The xy swapping might be due to different axes assignments in
the source and destination coordinate systems. For srid 31254, the PostGIS
spatial_ref_sys table has the following in the WKT: AXIS["Y",EAST],AXIS["X",NORTH]].<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Could you check your .prj file? If the WKT sets Y to North, or
does not set it explicitly then that would explain the swapping, which would occur
when Bulk copy converts the geometries between the source and destination WKT’s.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For SRID=26986, the WKT from PostGIS sets X to East and Y to
North which explains why Bulk Copy worked fine for it.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I’m not a coordinate system expert so I have to talk to a
few other people to determine a long-term solution. In the meantime, the workaround
you mentioned in another e-mail would be a good one. Overriding the source
coordinate system to an incompatible one and then ignoring coordinate system
errors, causes the coordinate conversion to be bypassed, preventing the
undesired ordinate swap.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Brent.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
fdo-users-bounces@lists.osgeo.org [mailto:fdo-users-bounces@lists.osgeo.org] <b>On
Behalf Of </b>Brent Robinson<br>
<b>Sent:</b> Wednesday, May 19, 2010 10:21 AM<br>
<b>To:</b> FDO Users Mail List<br>
<b>Subject:</b> RE: [fdo-users] AutoCAD Map 3d 2011 FDO 3.5.0 BulkCopy Point
from ShpFile to PostGIS 1.5.5 Table Coordinate Transformation Problem<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Karl,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I get the same results with this coordinate system when bulk
copying to the PostgreSQL provider. The x and y values get switched. I’ll
do a bit more investigation to narrow down the cause.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Brent.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
fdo-users-bounces@lists.osgeo.org [mailto:fdo-users-bounces@lists.osgeo.org] <b>On
Behalf Of </b>Hermann Karl<br>
<b>Sent:</b> Tuesday, May 18, 2010 5:54 AM<br>
<b>To:</b> FDO Users Mail List<br>
<b>Subject:</b> [fdo-users] AutoCAD Map 3d 2011 FDO 3.5.0 BulkCopy Point from
ShpFile to PostGIS 1.5.5 Table Coordinate Transformation Problem<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p><span lang=DE-AT style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Dear
List,</span><span lang=DE-AT> </span><o:p></o:p></p>
<p><span lang=DE-AT style='font-size:10.0pt;font-family:"Arial","sans-serif"'>If
I try to BulkCopy a point from a FDO_Connected shapefile to which i have
allocated the coordinatesystem "MGI-AT.AUT-West / GK"
(MGI / Austria GK West Zone) (srid = 31254) in AutoCAD Map 3d to a
FDO_Connected point table in postgis (srid of the_geom = 31254) to which i have
allocated the coordinatesystem "MGI-AT.AUT-West / GK" in AutoCAD Map
3d too, then the resulting x value of the point in the postgis table equals the
y value of the original point in the shapefile and the resulting y value of the
point in the postgis table equals the x value of the original point in the
shapefile.</span><o:p></o:p></p>
<p><span lang=DE-AT style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Karl</span><span
lang=DE-AT> </span><o:p></o:p></p>
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