head method

  1. @override
RoutePath head(
  1. double advance
)
override

Returns the leading segment of the route up to advance meters. advance distance along route (meters). Returns route head segment.

Example:

// Get head of route (first 10 meters)
RoutePath? headPath = path.head(10.0);
if (headPath != null) {
 print("Head path length: ${headPath.length} meters");
}

Implementation

@override
RoutePath head(double advance) {
    final _headFfi = __lib.catchArgumentError(() => __lib.nativeLibrary.lookupFunction<
        Pointer<Void> Function(Pointer<Void>, Float),
        Pointer<Void> Function(Pointer<Void>, double)
      >('navigine_sdk_flutter_RoutePath_head__Advance'));
    final _advanceHandle = navigine_sdk_flutter_double_ToFfi(advance);
    final _handle = this.handle;
    final __resultHandle = _headFfi(_handle, _advanceHandle);
    navigine_sdk_flutter_double_ReleaseFfiHandle(_advanceHandle);
    final _result = navigine_sdk_flutter_RoutePath_FromFfi(__resultHandle);
    navigine_sdk_flutter_RoutePath_ReleaseFfiHandle(__resultHandle);
    return _result;
}