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) {
// ignore: unnecessary_cast
final res = h3_js.getOriginH3IndexFromUnidirectionalEdge(
edgeIndex.toRadixString(16)) as String?;
if (res == null) {
return BigInt.zero;
}
return res.toBigInt();
}