final GeoPoint intPoint = xPlane.getSampleIntersectionPoint(planetModel, xVerticalPlane); if (intPoint != null) { xEdges = new GeoPoint[]{intPoint};
final GeoPoint intPoint = yPlane.getSampleIntersectionPoint(planetModel, yVerticalPlane); if (intPoint != null) { yEdges = new GeoPoint[]{intPoint};
final GeoPoint intPoint = zPlane.getSampleIntersectionPoint(planetModel, xVerticalPlane); if (intPoint != null) { zEdges = new GeoPoint[]{intPoint};