Hi Heinz Doerr, Heinz Doerr <[email protected]> wrote on 06/08/2009 06:20:46 AM:
> I'm using the JSVGCanvas , very nice, but I need to scale the displayed SVG > image to fit the window size of the canvas. > So no scrolling, rotation or panning needed. > This should work for any SVG (with or w/o a ViewBox) - changing the svg > file itself it not an option. > The aspect ratio should always be unchanged. > Nice, would be to have an option to either scale down only or to allow > scale up and down. That is quite a list of requirements. > Because I didn't found any 'scale-to-fit' hints, I was thinking if it > would be better to use > the BufferedImageTranscoder and convert the svg to an image. The transcoder > has the scale-to-fit build in (very nice - works with any SVG, keeps the > aspect ratio), but then I got problems loading some svg's. I'm not sure > how to get javascript, onLoad, references to elements, and security under > control. Having animation with the Canvas solution would also be a nice to have. There are options to run onload scripts before the rendering. > So I think I'm looking for something like an Action AutoFit for the > canvas, and this action automatically triggered (at the right time?). What I think will work best is for you to override 'JSVGComponent.calculateViewingTransform' to implement your desired scale to fit algorythem. If you get it working you might consider contributing it back so others could make use of it.
