musecube_old.py 文件源码

def get_mini_image(self, center, halfsize=15):

        """

        :param center: tuple of coordinates, in pixels
        :param size: length of the square around center
        :return: ndarray which contain the image
        """
        side = 2 * halfsize + 1
        image = [[0 for x in range(side)] for y in range(side)]
        data_white = fits.open(self.filename_white)[1].data
        center_x = center[0]
        center_y = center[1]
        for i in xrange(center_x - halfsize - 1, center_x + halfsize):
            for j in xrange(center_y - halfsize - 1, center_y + halfsize):
                i2 = i - (center_x - halfsize)
                j2 = j - (center_y - halfsize)
                image[j2][i2] = data_white[j - 1][i - 1]
        return image