colordefs.py 文件源码

def __init__(self):
        color_positions = np.linspace(0.0, 1.0, num=len(self.COLORS))

        self.colormap = pg.ColorMap(color_positions, self.COLORS.astype(int))
        self.cmap_normed = pg.ColorMap(color_positions, self.COLORS_INV / 255)

        # get the LookUpTable (LUT), first two params should match the position
        # scale extremes passed to ColorMap().
        # Return an RGB(A) lookup table (ndarray). Insert starting and stopping
        # value and the number of points in the returned lookup table:
        self.lut = self.colormap.getLookupTable(0, 1, 2000)