Hi,
I have a problem when I reproject a shapefile which has a Lambert2é projection to a Lambert93 projection.
There is a shift.
The shift is probably due to the fact that I have to use a grid transformation.
(georezo.net/forum/viewtopic.php?id=65396 ==> Utilisation transformation RGF_1993_To_NTF_NTv2)
I think I have the same problem as in this post thinkgeo.com/forums/MapSuite/tabid/143/aft/5627/Default.aspx
or this one thinkgeo.com/forums/MapSuite/tabid/143/aft/11769/Default.aspx
Is there a solution about this problem ?
Thanks.
Regards.
Steph.
Problem with french reprojection (lambert2é and Lambert93)
Hi Steph,
Do you know what’s the EPSG code of the Lambert2é projection and Lambert93 projection? After we get them, we can use something like below:
Proj4Projection proj4 = new Proj4Projection();
proj4.InternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(Lambert2éEPSG);
proj4.ExternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(Lambert93EPSG);
Another option is we define a custom projection and then implement the two methods in projection,here is a sample to show it.
wiki.thinkgeo.com/wiki/Sourc…110127.zip
If any questions, please feel free to let us know.
Thanks,
Troy