Could you please help me to make the right syntax in order to use an Horizontal Shift Grid (gsb file) and a custom projection in proj4 string of app.
The command that I am currently use in raspberry proj4 and my Windows PC is:
"cs2cs +init=epsg:4326 +nadgrids=myshiftgrid.gsb +to +proj=tmerc +lat_0=0 +lon_0=24 +k=0.9996 +x_0=500000 +y_0=0 +ellps=GRS80 +towgs84=-203.437,+73.461,+243.594,-0.17,-0.06,-0.151,0.294"
and works fine.
The command i am trying in RtkGps proj4 string is:
"+nadgrids=myshiftgrid.gsb +proj=tmerc +lat_0=0 +lon_0=24 +k=0.9996 +x_0=500000 +y_0=0 +ellps=GRS80 +towgs84=-203.437,+73.461,+243.594,-0.17,-0.06,-0.151,0.294"
and the coordinates are not correct - seems that outputs the shift ammount and not the final coordinates.
Hi,
Could you please help me to make the right syntax in order to use an Horizontal Shift Grid (gsb file) and a custom projection in proj4 string of app.
The command that I am currently use in raspberry proj4 and my Windows PC is: "cs2cs +init=epsg:4326 +nadgrids=myshiftgrid.gsb +to +proj=tmerc +lat_0=0 +lon_0=24 +k=0.9996 +x_0=500000 +y_0=0 +ellps=GRS80 +towgs84=-203.437,+73.461,+243.594,-0.17,-0.06,-0.151,0.294" and works fine.
The command i am trying in RtkGps proj4 string is: "+nadgrids=myshiftgrid.gsb +proj=tmerc +lat_0=0 +lon_0=24 +k=0.9996 +x_0=500000 +y_0=0 +ellps=GRS80 +towgs84=-203.437,+73.461,+243.594,-0.17,-0.06,-0.151,0.294" and the coordinates are not correct - seems that outputs the shift ammount and not the final coordinates.
Thanks a lot