svg2png.py 文件源码

def svg2png(svg_file, output_file, scale=1):
    # Get the svg files content
    svg_data = open(svg_file).read()

    # Get the width / height inside of the SVG
    doc = minidom.parseString(svg_data)
    width = [path.getAttribute('width') for path in doc.getElementsByTagName('svg')][0]
    height = [path.getAttribute('height') for path in doc.getElementsByTagName('svg')][0]
    width = int(round(float(re.compile('(\d+\.*\d*)\w*').findall(width)[0])))
    height = int(round(float(re.compile('(\d+\.*\d*)\w*').findall(height)[0])))
    doc.unlink()

    # Create the png
    img = cairo.ImageSurface(
        cairo.FORMAT_ARGB32, width * scale, height * scale)
    ctx = cairo.Context(img)
    ctx.scale(scale, scale)
    handler = rsvg.Handle(None, str(svg_data))
    handler.render_cairo(ctx)
    img.write_to_png(output_file)
    print("{} ==> {}".format(svg_file, output_file))