cdm/src/main/java/ucar/nc2/dataset/CoordinateSystem.java
public boolean isGeoXY() {
    if ((xAxis == null) || (yAxis == null)) return false;
    return null != getProjection() && !(projection instanceof LatLonProjection);
  }
public boolean isGeoXY() {
    if ((xAxis == null) || (yAxis == null)) return false;
    return null != getProjection() && !(projection instanceof LatLonProjection);
  }
true if it has X and Y CoordinateAxis, and a CoordTransform Projection
@return true if it has X and Y CoordinateAxis, and a CoordTransform Projection