layer.py 文件源码

def ellipse(self, row: int, col: int, radius_r: float, radius_c: float,
                color: ColorType, fill: bool=False, alpha: float=1.0) -> 'Layer':
        """
        Draw an ellipse centered on the specified row and column,
        with the given radiuses.

        :param row: Center row of ellipse
        :param col: Center column of ellipse
        :param radius_r: Radius of ellipse on y axis
        :param radius_c: Radius of ellipse on x axis
        :param color: Color to draw with
        :param fill: True if the circle should be filled

        :return: This frame instance
        """
        if fill:
            rr, cc = draw.ellipse(row, col, math.floor(radius_r), math.floor(radius_c),
                                  shape=self.matrix.shape)
            self._draw(rr, cc, color, alpha)

        else:
            rr, cc = draw.ellipse_perimeter(row, col, math.floor(radius_r), math.floor(radius_c),
                                            shape=self.matrix.shape)
            self._draw(rr, cc, color, alpha)

        return self