Python SVG converter creates empty file

2024/9/20 19:26:00

I have some code below that is supposed to convert a SVG image to a PNG. It runs without errors but creates a PNG file that is blank instead of one with the same image as the original SVG. I did find that it is not an error with cairo but more one relating to rsvg, which I got here.

import cairo
import rsvgimg = cairo.ImageSurface(cairo.FORMAT_ARGB32, 640,480)
ctx = cairo.Context(img)
handle= rsvghandler.Handle('example.svg')
handle.render_cairo(ctx)
img.write_to_png("svg.png")

I am using Python 3.6 on Windows 10.

I can't for the life of me figure out why it isn't displaying the correct picture. Any help would be hugely appreciated.

Answer

If your goal is to convert from SVG to PNG, I would recommend using Wand, as in the following script:

from wand.api import library
import wand.color
import wand.imagewith wand.image.Image() as image:with wand.color.Color('transparent') as background_color:library.MagickSetBackgroundColor(image.wand, background_color.resource) image.read(blob=NAMEOFTHEFILE.read(), format="svg")png_image = image.make_blob("png32")with open(NAMEOFTHENEWFILE, "wb") as out:out.write(png_image)
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