add margin parameter to draw_grid_annotations

        self.size = None

        self.size = None

def draw_grid_annotations(im, width, height, hor_texts, ver_texts):

def draw_grid_annotations(im, width, height, hor_texts, ver_texts, margin=0):

    def wrap(drawing, text, font, line_length):

    def wrap(drawing, text, font, line_length):

        lines = ['']

        lines = ['']

        for word in text.split():

        for word in text.split():

            line.allowed_width = allowed_width

            line.allowed_width = allowed_width

    hor_text_heights = [sum([line.size[1] + line_spacing for line in lines]) - line_spacing for lines in hor_texts]

    hor_text_heights = [sum([line.size[1] + line_spacing for line in lines]) - line_spacing for lines in hor_texts]

    ver_text_heights = [sum([line.size[1] + line_spacing for line in lines]) - line_spacing * len(lines) for lines in

    ver_text_heights = [sum([line.size[1] + line_spacing for line in lines]) - line_spacing * len(lines) for lines in ver_texts]

                        ver_texts]

    pad_top = 0 if sum(hor_text_heights) == 0 else max(hor_text_heights) + line_spacing * 2

    pad_top = 0 if sum(hor_text_heights) == 0 else max(hor_text_heights) + line_spacing * 2

    result = Image.new("RGB", (im.width + pad_left, im.height + pad_top), "white")

    result = Image.new("RGB", (im.width + pad_left + margin * (rows-1), im.height + pad_top + margin * (cols-1)), "white")

    result.paste(im, (pad_left, pad_top))

    for row in range(rows):

        for col in range(cols):

            cell = im.crop((width * col, height * row, width * (col+1), height * (row+1)))

            result.paste(cell, (pad_left + (width + margin) * col, pad_top + (height + margin) * row))

    d = ImageDraw.Draw(result)

    d = ImageDraw.Draw(result)

    for col in range(cols):

    for col in range(cols):

        x = pad_left + width * col + width / 2

        x = pad_left + (width + margin) * col + width / 2

        y = pad_top / 2 - hor_text_heights[col] / 2

        y = pad_top / 2 - hor_text_heights[col] / 2

        draw_texts(d, x, y, hor_texts[col], fnt, fontsize)

        draw_texts(d, x, y, hor_texts[col], fnt, fontsize)

    for row in range(rows):

    for row in range(rows):

        x = pad_left / 2

        x = pad_left / 2

        y = pad_top + height * row + height / 2 - ver_text_heights[row] / 2

        y = pad_top + (height + margin) * row + height / 2 - ver_text_heights[row] / 2

        draw_texts(d, x, y, ver_texts[row], fnt, fontsize)

        draw_texts(d, x, y, ver_texts[row], fnt, fontsize)