2009/05/26
Recently, I deal with two types of map visualized in ArkMap.
One shows the road-net in Tokyo, and another is Tokyo Topographic Map( TDM ).
Now, my task is to make the connection between these two maps in positioning data.
I noticed that the positioning data in road-net map was based on Tokyo Datum( 日本測地系 ).
So, I checked the positioning data of Tokyo Station and tried to relate positioning date of two maps.
These are equations.
Tx = -6025 + 9000( Nx - 139.77 )
Ty = -35271 + 111000( Ny - 35.68)
Tx, Ty : TDM
Nx, Ny : road-net map
One shows the road-net in Tokyo, and another is Tokyo Topographic Map( TDM ).
Now, my task is to make the connection between these two maps in positioning data.
I noticed that the positioning data in road-net map was based on Tokyo Datum( 日本測地系 ).
So, I checked the positioning data of Tokyo Station and tried to relate positioning date of two maps.
These are equations.
Tx = -6025 + 9000( Nx - 139.77 )
Ty = -35271 + 111000( Ny - 35.68)
Tx, Ty : TDM
Nx, Ny : road-net map
