Modification of a SVG image using Qt framework

<[email protected]> 09 Jan 2014 21:26:11 -0800
Newsgroups gmane.text.xml.svg.devel
Message-ID <[email protected]>
Hi all,
 I want to build an application that loads a SVG image, do some modification to each curve in it and save back the result. So far I have successfully loaded a SVG image using QFile and displayed it on QGraphicsScene via QGraphicsSvgItem. Now the question is how to access the coordinate of each curve in order to perform the modification?
 Thanks!