Good evening at everyone.
SINFI (National Information System for Italian Infrastructures) requires that the data be delivered to the reference system EPSG:6875 [1]
The SRS EPSG:6875 is called "RDN2008 / Italy zone (N-E)", based on the "RDN 2008" Datum.
The "Rete Dinamica Nazionale 2008", is the evolution of "European Terrestrial Reference Frame 2000" (ETRF 2000) . The RDN2008-ETRF2000 system is the new official Italian reference system since 2011 (D.M. del 10/11/2011) [2]
[2] http://geomappando.com/wp-content/uploads/2016/07/DM-ETRF2000-RDN.pdf
I have configured as follows a custom "DATUM_DEF" and a custom "COORDINATE_SYSTEM_DEF" in my "MyCoordSysDefs.fme" file:
ELLIPSOID_DEF GRS_1980 \
DESC_NM "GRS_1980" \
E_RAD 6378137 \
P_RAD 6356752.314140
DATUM_DEF RDN2008 \
DESC_NM "Rete_Dinamica_Nazionale_2008" \
SOURCE "PROJ4" \
ELLIPSOID GRS_1980 \
USE 7PARAMETER
DELTA_X 0 \
DELTA_Y 0 \
DELTA_Z 0 \
BWSCALE 0 \
ROT_X 0 \
ROT_Y 0 \
ROT_Z 0
COORDINATE_SYSTEM_DEF RDN2008_Italy_zone_N_E \
DESC_NM "RDN2008 / Italy zone (N-E)" \
EL_NAME GRS_1980 \
DT_NAME RDN2008 \
GROUP EUROPE \
PARM1 12 \
PROJ TM \
MAX_LAT 47.10 \
MAX_LNG 18.99 \
MIN_LAT 34.76 \
MIN_LNG 5.93 \
QUAD 1 \
SCL_RED 0.9985000000 \
UNIT METER \
X_OFF 7000000
The new coordinate system is corrently loaded from FME and the reprojection works great.
FME Create the ESRI WKT Definition as follow:
PROJCS["RDN2008_Italy_zone_N_E",GEOGCS["GCS_RDN2008",DATUM["D_RDN2008",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",12],PARAMETER["scale_factor",0.9985],PARAMETER["false_easting",7000000],PARAMETER["false_northing",0],UNIT["Meter",1]]
The ESRI WKT Definition created from QGIS is the follow:
PROJCS["RDN2008_Italy_zone_N_E",GEOGCS["GCS_RDN2008",DATUM["D_Rete_Dinamica_Nazionale_2008",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",12],PARAMETER["scale_factor",0.9985],PARAMETER["false_easting",7000000],PARAMETER["false_northing",0],UNIT["Meter",1]]
To allow QGIS to recognise the EPSG:6785 reference system, the two WKT strings must be identical
I expected that in the string was reported the parameter DESC_NM "Rete_Dinamica_Nazionale_2008" but it is not so. the name is reported.
The name cannot be longer than 24 characters.
Any suggestions?