Hi John, > > https://stackoverflow.com/questions/11332608/ may also be useful if > > you're not used to affine transformations for 2D graphics. > > Ah, that doesn't really apply here because a separate <canvas> element > is used for each individual page: the viewer's layout is handled using > plain HTML/CSS (for both performance and simplicity reasons).
Yes, I thought each page was a separate <canvas>. I don't see why that Q&A doesn't apply though since it's only talking about zooming on a single canvas and wanting to translate, i.e. slide, the zoomed image so a desired area is visible. But as long as you're happy, that's fine. `Release early, release often'. :-) -- Cheers, Ralph. https://plus.google.com/+RalphCorderoy
