getOriginH3IndexFromUnidirectionalEdge method
Get the origin hexagon from an H3 index representing a unidirectional edge
Returns 0 when result can't be calculated
Implementation
@override
BigInt getOriginH3IndexFromUnidirectionalEdge(BigInt edgeIndex) {
return _h3c
.getOriginH3IndexFromUnidirectionalEdge(edgeIndex.toInt())
.toBigInt();
}