Coordinate Transformation

[MoppleTheWhale42]

I am wondering how exactly DCS maps between the two-dimensional x and z coordinates and longitude, latitude.
According to documentation, the x-axis points towards north and z points towards east. Thus, I would expect that if I increase the value of x and leave z unchanged, then the latitude increases and the longitude does not change.

 

However, this is not the case. On the Caucasus map for example, I get the following longitude/latitude for the given x and z values.

 

Caucasus:
x=     0, y=     0, z=     0, lat=45.129497, long=34.265515, height=0.000000
x=100000, y=     0, z=     0, lat=46.029375, long=34.285897, height=0.000000

 

As you can see, the longitude is also increased, although the value of z did not change. The other maps show a similar behavior. It looks to me that x is not exactly pointing to north.

 

Can anyone tell me how exactly the coordinate transformation is done within DCS?

Edited September 8, 2021 by MoppleTheWhale42

[Anatoli-Kagari9]

Look for UTM conversion.

 

There are loads of online converters, usually basedon the WGS84 ellipsoid , but not only.

 

I woukd rather prefer, though, that DCS used a "curved Earth model"

 

Edited October 5, 2021 by jcomm