bhagany's dashboard

Aseem,

Can you clarify what you mean about the standalone version not being fully open source? The only references to licensing I can find apply to the ASP.NET AJAX version being under the MS-PL. Has the licensing for the standalone version been decided yet?

Just anticipating pushback from my boss :)

I just grabbed a javascript file off of seadragon.com, which I'm guessing is the standalone version. I'll have to check with my employer about the IP thing - I'll get back to you.

Hi Aseem,

I have a working implementation of rotation in Seadragon when using canvas. The performance is horrible in IE using excanvas though, so I'm working on a VML solution as well.

As for the bounding rect problem - I kind of sidestepped it by just increasing the size of the rect to include the corners of the rotated image. Not an awesome solution, but I didn't notice any performance degradation in browsers with a native canvas implementation.

Anyway, if you're interested to see what I've done, and to save yourself a little remedial trigonometry, let me know.

Hey guys, thanks for the quick replies. My use case involved a lot of images that haven't necessarily been looked at by people before they're available to the end user, and which may be oriented incorrectly. So, rotation would allow the user to correct the situation if they need to. All I really need is to rotate 90, 180 or 270 degrees, but arbitrary rotation would be hella sweet, and probably more useful to more people.

On the one hand, I understand not wanting to clutter your codebase with a whole bunch of browser-specific code. But on the other, since I'm not writing it, if you come to the point where you're considering new features, consider this a vote for arbitrary image rotation :). Otherwise, I'll just add this to the list of reasons I can't wait for widespread canvas support.

But anyway, thanks again. And Aseem, I found your blog post very helpful in bringing me up to speed on the cross-browser issues you guys are facing. Thanks.