Retrieve values with viewbox transformation applied

[ant1j]

Hello,

Just discover your package, and it looks like the perfect tool for the job.
I am trying to find the way to apply the viewbox to all the objects in the SVG file, in order to get the right display, since the SVG example I have has a width and height defined (default values is my guess) but the viewBox is very different, "squeezing" the y-axis.
Using the (raw) coordinates in the paths does not render properly.
I guess I need to apply the viewBox transform before, but I haven't succeded yet. I tried transform, render, or Matrix without success (e.g. just a_path.render() does not take the viewBox into account).

This is the "header of the SVG defining a width, height and viewBox:

<svg xmlns="http://www.w3.org/2000/svg" height="800" width="1200" preserveAspectRatio="xMinYMin none" xml:space="preserve" y="0" x="0" id="Layer_1" version="1.1" viewBox="-146.73 -44.575 1271.66 267.45">

The rest of the document is simple paths.

Thanks in advance