Hi there,

I need to build a ROI given some geodetic coordinates (instead of the spherical ones). But if I use GeodeticPoint and then EllipsoidTessellator.buildSimpleZone I get the same result as if I use S2Points and SphericalPolygonsSet:

```
point1 = S2Point(float(radians(lon[0])),float(radians(90-lat[0])))
point2 = S2Point(float(radians(lon[1])),float(radians(90-lat[1])))
point3 = S2Point(float(radians(lon[2])),float(radians(90-lat[2])))
point4 = S2Point(float(radians(lon[3])),float(radians(90-lat[3])))
ROI = SphericalPolygonsSet(1e-10,[point4,point3,point2,point1])
point1 = GeodeticPoint(float(radians(lat[0])),float(radians(lon[0])),float(0.0))
point2 = GeodeticPoint(float(radians(lat[1])),float(radians(lon[1])),float(0.0))
point3 = GeodeticPoint(float(radians(lat[2])),float(radians(lon[2])),float(0.0))
point4 = GeodeticPoint(float(radians(lat[3])),float(radians(lon[3])),float(0.0))
ROI = EllipsoidTessellator.buildSimpleZone(1.0e-10,[point4,point3,point2,point1])
```

Shouldn’t they be different?