h3IsResClassIII method
Determines if h3Index
is Class III (rotated versus
the icosahedron and subject to shape distortion adding extra points on
icosahedron edges, making them not true hexagons).
Implementation
@override
bool h3IsResClassIII(BigInt h3Index) {
return _h3c.h3IsResClassIII(h3Index.toInt()) == 1;
}