mandelbrot.py 文件源码

def rgbFromWaveLength(self, wave):
        r = 0.0
        g = 0.0
        b = 0.0

        if wave >= 380.0 and wave <= 440.0:
            r = -1.0 * (wave - 440.0) / (440.0 - 380.0)
            b = 1.0
        elif wave >= 440.0 and wave <= 490.0:
            g = (wave - 440.0) / (490.0 - 440.0)
            b = 1.0
        elif wave >= 490.0 and wave <= 510.0:
            g = 1.0
            b = -1.0 * (wave - 510.0) / (510.0 - 490.0)
        elif wave >= 510.0 and wave <= 580.0:
            r = (wave - 510.0) / (580.0 - 510.0)
            g = 1.0
        elif wave >= 580.0 and wave <= 645.0:
            r = 1.0
            g = -1.0 * (wave - 645.0) / (645.0 - 580.0)
        elif wave >= 645.0 and wave <= 780.0:
            r = 1.0

        s = 1.0
        if wave > 700.0:
            s = 0.3 + 0.7 * (780.0 - wave) / (780.0 - 700.0)
        elif wave < 420.0:
            s = 0.3 + 0.7 * (wave - 380.0) / (420.0 - 380.0)

        r = pow(r * s, 0.8)
        g = pow(g * s, 0.8)
        b = pow(b * s, 0.8)

        return qRgb(r*255, g*255, b*255)