BMFCoordinateRegion constructor

BMFCoordinateRegion(
  1. {@required BMFCoordinate center,
  2. @required BMFCoordinateSpan span}
)

BMFCoordinateRegion构造方法

Implementation

BMFCoordinateRegion({
  @required this.center,
  @required this.span,
})
    : assert(center != null),
      assert(span != null);