desert_mirage_lib.py 文件源码

def euclidean_distance(x1, y1, x2, y2, prec_calc=2, prec_out=2):
    """
    Calculates euclidean distance between a pair of cartesian points.
    Includes parameter to apply a cutoff precision.

    Parameters
    ----------
    x1, y1: float coordinates of first point.
    x2, y2: float coordinates of second point.
    prec_calc: int (default: 3)
        decimal precision for calculations.
    prec_out: int (default: 2)
        output decimal precision.
    """
    x1, y1 = float(x1), float(y1)
    x2, y2 = float(x2), float(y2)
    x_off = dec_round(math.fabs(x1-x2), prec_calc, 'down')
    y_off = dec_round(math.fabs(y1-y2), prec_calc, 'down')
    dist = math.sqrt((x_off**2)+(y_off**2))
    return dec_round(dist, prec_out, 'down', True)