Converts a 2-D numpy array of \(x\)-\(y\) coordinates to the format used by the
shapely library.
- Parameters:
arr (np.ndarray) – 2-D array of \(x\)-\(y\) coordinates
- Returns:
List of tuples where each tuple represents an \(x\)-\(y\) coordinate pair
- Return type:
List[tuple]
