Comment 9 for bug 168942

@Alvin - could this backported to 0.48.x by copy&pasting the function 'invertTransform()' from voronoi2svg.py (which is new file only available in trunk) [1] into 'perspective.py ', and adding the changes to simpletransfoms.py from r10414 [2]?
Or there other underlying changes in shared extensions files the fix depends on?

[1] <http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/view/head:/share/extensions/voronoi2svg.py#L168>
[2] <http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/revision/10414#share/extensions/simpletransform.py>