The InkML specification provides for a standard format for serialization. This can all be done with existing JS APIs (like FormData+XHR).
Pressure sensitivity is still missing from current implementations of DOM events. Signature use cases seem to have more to do with key signing (encryption) than pen input. -Charles On Oct 31, 2012, at 9:25 AM, "Thomas A. Fine" <[email protected]> wrote: > What would the format of submitted data be? A JPEG or PNG? A set of the > native canvas commands that were used to create the image? Or those commands > converted into SVG, postscript, or pdf? > > People can already write javascript (or whatever) to allow a user to draw on > a canvas, and store the data in some hidden form field. So this can be > accomplished right now. At a glance, that makes standardization seem > unnecessary. > > Incidentally, there was an experiment in the early nineties with something > called scribble or jot (or both) which allowed users to make drawings and > submit them. It obviously failed to become a standard, and there's no signs > of it left on the web that I can see. > > tom > > On 10/29/12 6:08 AM, Shai Manor wrote: >> Dear HTML5 Specification Team, >> >> We live in a touchable world. Tablets, smartphones, touch-enabled monitors. >> >> We should be able to use the CANVAS as a FORM INPUT so that users can >> literally "digitally sign" with a stylus or a finger, and that signature >> should be stored either as an image in the user's account or sent to the >> "requester" through a FORM ACTION. >> >> The concept is simple, taking forms to the next level and enabling >> user-generated input. >> >> Best Regards, >> * >> * >> * >> Shai Manor* >> E-mail: [email protected] <mailto:[email protected]> > >
