Geo- referencing Projected coordinated raster with GCS - ArcGIS

Question

I have raster displaying Lat/ Long grid, but map information shows that, it s been mapped in Gauss Krugger projetion/ Beijing 1954. So, technically we need to geo reference the map in Gauss Krugger/ Beigjing 1954 Projectec Coordinated System in ArcGIS.

So, basically what I need to do is, georeference raster by input of Lat/Long, but need to update the georeferencing by projected coordinated system mentioned above.

In Global mapper, we can load the raster and enter Lat/Long available in the map, straight away it will be recalculated to Projected coordinated system.

Can we get anything same in ArcGIS?

SatishKumar3 · Answer

You are quite correct that the raster should be georeffed into its real projected system.
But if you have a graticule on the map marked in GCS you can enter these cords directly.
After clicking on the "from" point using the GeoRef toolbar, if you right click, it gives you the opportunity to type in the known coords of the point in DMS or DD, these locations are then immediately projected into the PCS units, and will appear in the link table as metres or whatever it is.
This is particularly useful when georeffing scanned map sheets where the corners are usually marked in Lat/Long but the map is UTM or whatever.
Good luck,
Neil

Thanks a lot Neil,.

That works perfectly,.

NeilAyres · Answer

You are quite correct that the raster should be georeffed into its real projected system.
But if you have a graticule on the map marked in GCS you can enter these cords directly.
After clicking on the "from" point using the GeoRef toolbar, if you right click, it gives you the opportunity to type in the known coords of the point in DMS or DD, these locations are then immediately projected into the PCS units, and will appear in the link table as metres or whatever it is.
This is particularly useful when georeffing scanned map sheets where the corners are usually marked in Lat/Long but the map is UTM or whatever.
Good luck,
Neil

MelitaKennedy · Answer

There may be a tool or option that I don't know about, but why not create a feature class with the lat/lon points you want to use for the georeferencing, then project this feature class to the coordinate system of the map?

Melita