- From: Justin Novosad <junov@chromium.org>
- Date: Thu, 10 Oct 2013 17:36:18 -0400
- To: Rik Cabanier <cabanier@gmail.com>
- Cc: syhann@adobe.com, Simon Fraser <smfr@me.com>, "Jasper St. Pierre" <jstpierre@mecheye.net>, "whatwg@whatwg.org" <whatwg@whatwg.org>, Dean Jackson <dino@apple.com>, Ian Hickson <ian@hixie.ch>, Robert O'Callahan <robert@ocallahan.org>
On Thu, Oct 10, 2013 at 4:20 PM, Rik Cabanier <cabanier@gmail.com> wrote: > Dean, Roc, Justin, > > would you change Canvas' stroking behavior so it no longer matches SVG and > CSS and your underlying graphics libraries? > My first reflex is to say that of course it would be convenient for implementors and web developpers alike if dashes were consistent across all web standards. I don't feel super strongly about that though, and could easily be convinced otherwise. How much does that really matter to the Web? However, I do think there should at least be an easy way to draw a box with dashed borders in a way that mimics CSS dashed borders-, which looks a lot better than what canvas does out of the box. Doing the same in canvas is a bit too tricky right now IMHO. Also, we shouldn't have to implement a special dash rendering algorithm just for canvas (as is suggested by the spec). That being said, I don't think that is really an issue. From an implementor's perspective, most of what is in the canvas spec and the tweaks discussed in this thread can be at least approximately mapped to the pre-canned dashing models of most graphics APIs by just massaging the data in the bindings that tie the layout/rendering engine to the graphics API. There is just the feature of applying line caps on individual dashes that requires a bit of extreme massaging (at least with skia). But that's OK. It's a useful feature and SVG already does it. > > http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. >> Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.' >> > >
Received on Thursday, 10 October 2013 21:36:44 UTC