getAxisOrientation() {
    return this.axisOrientation_;
  }
Get the axis orientation of this projection.
Example values are:
enu - the default easting, northing, elevation.
neu - northing, easting, up - useful for "lat/long" geographic coordinates,
    or south orientated transverse mercator.
wnu - westing, northing, up - some planetary coordinate systems have
    "west positive" coordinate systems
@return {string} Axis orientation.
@api