Function angle_between

limsim/evaluation/math_utils.py:5–18

compute the angle between two vectors, i.e. theta = arccos( / (||v1||_2 * ||v2||_2)) Args: v1 (np.ndarray): first vector v2 (np.ndarray): second vector of same length as first vector Returns: float: angle in radians, between [0, pi]

(v1: np.ndarray, v2: np.ndarray)

def angle_between(v1: np.ndarray, v2: np.ndarray) -> float:
    """compute the angle between two vectors, i.e.
        theta = arccos(<v1, v2> / (||v1||_2 * ||v2||_2))

    Args:
        v1 (np.ndarray): first vector
        v2 (np.ndarray): second vector of same length as first vector

    Returns:
        float: angle in radians, between [0, pi]
    """
    if np.all(v1 <= 1e-8) or np.all(v2 <= 1e-8):
        return 0.0
    return np.arccos(np.dot(v1, v2) / (np.linalg.norm(v1) * np.linalg.norm(v2) + 1e-9))


def project(v1: np.ndarray, v2: np.ndarray) -> float: