plot_4d.py 文件源码

def generateTickStep(dps):
    coeff = [1., 2., 5.]
    coeffIdx = 0
    mult = 1.
    step = coeff[coeffIdx] * mult

    #Replaces 0 by NaN to ignore 0 as min
    dps_new = dps
    dps_new[dps_new == 0] = np.nan

    dpsRange = max(dps) - min(dps_new)
    while dpsRange / step >= 8:
        coeffIdx = (coeffIdx + 1) % 3
        if coeffIdx == 0:
            mult = mult * 10.
        step = coeff[coeffIdx] * mult
    return step