Python LCHabColor.get_value_tuple Examples

Example #1

File: generate_road_colours.py Project: AddisMap/openstreetmap-carto

class Color:
  def __init__(self, lch_tuple):
    self.m_lch = LCHabColor(*lch_tuple)

  def lch(self):
    return "Lch({:.0f},{:.0f},{:.0f})".format(*(self.m_lch.get_value_tuple()))

  def rgb(self):
    rgb = convert_color(self.m_lch, sRGBColor)
    if (rgb.rgb_r != rgb.clamped_rgb_r or rgb.rgb_g != rgb.clamped_rgb_g or rgb.rgb_b != rgb.clamped_rgb_b):
      raise Exception("Colour {} is outside sRGB".format(self.lch()))
    return rgb.get_rgb_hex()

  def rgb_error(self):
    return delta_e_cie2000(convert_color(self.m_lch, LabColor),
                           convert_color(sRGBColor.new_from_rgb_hex(self.rgb()), LabColor))

Example #2

File: generate_road_colours.py Project: rory/openstreetmap-carto-de

class Color:
    """A color in the CIE lch color space."""

    def __init__(self, lch_tuple):
        self.m_lch = LCHabColor(*lch_tuple)

    def lch(self):
        return "Lch({:.0f},{:.0f},{:.0f})".format(*(self.m_lch.get_value_tuple()))

    def rgb(self):
        rgb = convert_color(self.m_lch, sRGBColor)
        if (rgb.rgb_r != rgb.clamped_rgb_r or rgb.rgb_g != rgb.clamped_rgb_g or rgb.rgb_b != rgb.clamped_rgb_b):
            raise Exception("Colour {} is outside sRGB".format(self.lch()))
        return rgb.get_rgb_hex()

    def rgb_error(self):
        return delta_e_cie2000(convert_color(self.m_lch, LabColor),
                               convert_color(sRGBColor.new_from_rgb_hex(self.rgb()), LabColor))