[reportlab-users] SVG support on the Canvas?

Roberto Alsina ralsina at netmanagers.com.ar
Tue Jun 2 20:22:42 EDT 2009


On Tuesday 02 June 2009 20:46:00 Bill Janssen wrote:

> Bill

> Roberto Alsina <ralsina at netmanagers.com.ar> wrote:

> > On Tuesday 02 June 2009 18:19:16 Bill Janssen wrote:

> > > Tim Roberts <timr at probo.com> wrote:

> > > > Bill Janssen wrote:

> > > > > Found it.

> > > > > http://lateral.netmanagers.com.ar/weblog/2008/09/10.html#BB753

> > > > >

> > > > > If I understand what you're doing, you're converting the SVG to

> > > > > PDF, then pasting that PDF inline in the document that ReportLab is

> > > > > generating.

> > > >

> > > > Right. That's what you HAVE to do. The Acrobat readers don't

> > > > understand embedded SVG (yet).

> > >

> > > Sure, but there's an intermediate stage, an SVG interpreter as part of

> > > ReportLab that walks the parsed SVG and re-expresses it in terms of RL

> > > vector drawing calls, which of course then get turned into PDF. The

> > > problem with embedding "raw" PDF is that it doesn't always work.

> >

> > BTW: the latest version is here:

> >

> > http://code.google.com/p/rst2pdf/source/browse/trunk/rst2pdf/svgimage.py

> > http://code.google.com/p/rst2pdf/source/browse/trunk/rst2pdf/uniconvsaver

> >.py

> >

> > The svgimage flowable loads the SVG, which uniconvertor stores in its

> > internal representation.

> >

> > Then the call to save() in drawOn() passes the canvas to the PDFDevice

> > class, which means it just draws the SVG in that canvas, there is never

> > any PDF generated until you save your document.

>

> What's confusing me is "app". What's that?


uniconvertor is not meant to be used as a library. What you see using app is
tricking it into working as one. I couldn't tell you exactly what that does
anymore :-)

--
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