Method linear_color

imagepy/ui/widgets/cmappanel.py:38–45

(cls, cs)

        
    @classmethod
    def linear_color(cls, cs):
        cs = sorted(cs)
        cmap = np.vstack([np.arange(256)]*3).T
        for i in range(1, len(cs)):
            c1, c2 = cs[i-1][1:], cs[i][1:]
            rs, gs, bs = [np.linspace(c1[j], c2[j], cs[i][0]-cs[i-1][0]+1) for j in (0,1,2)]
            cmap[cs[i-1][0]:cs[i][0]+1] = np.array((rs, gs, bs)).T
        return cmap.astype(np.uint8)

    def on_size(self, event):
        self.init_buf()