PolygonBuilder constructor

PolygonBuilder({
  1. SpatialReference? spatialReference,
})

Creates a new empty polygon builder with the specified SpatialReference.

The SpatialReference cannot be changed after instantiation.

Parameters:

  • spatialReference — The builder's spatial reference.

Implementation

factory PolygonBuilder({
  SpatialReference? spatialReference,
}) {
  _initializeArcGISEnvironmentIfNeeded();
  final handle = _withThrowingErrorHandler((errorHandler) {
    return runtimecore.RT_PolygonBuilder_createFromSpatialReference(
      spatialReference?._handle ?? ffi.nullptr,
      errorHandler,
    );
  });
  final PolygonBuilder object = PolygonBuilder._withHandle(handle);
  object._spatialReference.cache(spatialReference);
  return object;
}