将地理坐标转换为Unity坐标系

Question

I'm making a game that works only in a fixed geographical area. The custom I'm making the game for wants to a Pokémon Go-like user interface. There will be a place with a custom image representing the geographical area I was taking about. I successfully transposed the geographic coordinates to cartesian coordinate with the following code:

cartesianCoord.x = EARTH_RADIUS * Mathf.Cos (location.latitude) * Mathf.Cos (location.longitude);
cartesianCoord.y = EARTH_RADIUS * Mathf.Cos (location.latitude) * Mathf.Sin (location.longitude);
cartesianCoord.z = EARTH_RADIUS * Mathf.Sin (location.latitude);

But now I can't properly place my character on the place. This represents my situation: (red dots are known)

The image on the left is my plane in Unity. How can I place the character in the right position on the plane?

Answer 1

You should use linear interpolation.

Mathf.Lerp documentation