Add an option to give a specific position to a tileset

[clementcolin]

The --offset option let us translate a tileset. It also let us substract the centroid of the tileset to center it to the origin.

Another usefull option to add would be to set an all-new centroid.

For now, a workaround solution is the following : ****-tiler YOUR_FILE --offset centroid tileset-reader RESULTING_TILESET --offset new_centroid

[LorenzoMarnat]

This could be an interesting new feature indeed. Some work could be done to change only the centroid when using reprojection, offset or this new feature (transform only the centroid, not all triangles/vertices).