Awesome!!..with tablet. You can add text support, and login with email id..dont have facebook!
Show HN: A virtual whiteboard for working or teaching remotely
111–120 of 143 posts
Re: Show HN: A virtual whiteboard for working or teaching remotely
#112Earlier quoted context omitted.
The video shows Mark explaining to Sally how a Facebook login would work on her website with the whiteboard. A killer missing feature seems to be microphone support, which the video alludes to.
Looking at all the feature requests here I can't help but think that you guys are reinventing TeamSpeak. The only difference I see is that with TeamSpeak you first must install a client whereas this runs in a browser.
Actually, there are lots of other online whiteboards that have all of these features without requiring a download or plugin.
Re: Show HN: A virtual whiteboard for working or teaching remotely
#113I played around with something like this when I was a kid (it was a group of kids drawing anime characters if I recall). Every once in a while I search for something like that and I can never find it. Now it's back :D
Try searching for 'online whiteboard' and you'll find lots of them :)
Hmm maybe I wasn't searching hard enough :D
Re: Show HN: A virtual whiteboard for working or teaching remotely
#114This looks similar to Citrix's Talkboard http://www.citrix.com/products/talkboard/overview.html
Re: Show HN: A virtual whiteboard for working or teaching remotely
#115Only works in Internet Explorer 9, doesn't work in IE 8 in some companies they only allow you to use IE only and only upgrade the browser if they install a new OS.
If you're on IE 8, you have bigger issues than this working for you.
My work mate is using IE8 I am using IE9 just happened to try it out. But found out you can do the same thing in microsoft lync which I didn't know you could do.
Re: Show HN: A virtual whiteboard for working or teaching remotely
#116This is little 'scratch-your-own-itch' project I started working on about 9 months ago. Front end is GWT, back end is Java servlets. Database was originally MySQL but switched to Prevayler for performance reasons. My YouTube video gives a nice overview of the benefits of a virtual whiteboard: http://youtu.be/MDEHFHG1l3Y What does Hacker News think?
One feature that would make this a killer app in my mind is the ability to import a photo of a whiteboard and have the virtual whiteboard reconstruct what was on the whiteboard in the future. We often take a picture of the whiteboard at the end of the discussion -- being able to continue to edit that whiteboard at some point in the future would be very handy.
This is (more or less) how SmartBoards work. I had one in almost every classroom from 8th grade on.
Re: Show HN: A virtual whiteboard for working or teaching remotely
#117http://whiteboardfox.com/972-7551-8980
Broke it?
Re: Show HN: A virtual whiteboard for working or teaching remotely
#118Nice first cut. It's actually surprising that it took a full seven years for anybody else to show up Twiddla's [1] space with a true HTML5 whiteboard. Back when we started out, there were half a dozen commercial versions of this exact thing, but all in Flash or Java, and all trying to compete with WebEx. It think you're on the right path positioning this for use in schools. That's our main use case too, replacing ove…
It was more like two years actually :) Anyway, back in 2007 java and flash were reasonable solutions. Today, not so much. PS, how do you make any money from twiddla if you give away free educational accounts?
We make the lion's share of our profits from API customers.
Re: Show HN: A virtual whiteboard for working or teaching remotely
#119Earlier quoted context omitted.
The drawing is basically a list of strokes, and a stroke is a list of points - that is, (x, y) coordinates. So the database is mostly a huge table of (x,y) coordinates. Uploading the entire canvas would far too inefficient - I simply upload the points. The transfer between two clients uses a technique called 'long polling'. That is, the client sends an HTTP request to the server, and the server doesn't respond until…
Did you consider doing spline fits to the x,y coordinates and then just saving the spline coefficients instead? The fit process could likely be done client-side, and could offer some subtle smoothing if wanted? Anyhow, really nice execution!
paper.js has a nice method to do this. I actually used it in a whiteboard app I made as a proof of concept. Rather than saving every X,Y coordinate, it uses a configurable number of points and handles and makes bezier curves. http://paperjs.org/examples/path-simplification/
Re: Show HN: A virtual whiteboard for working or teaching remotely
#120This is little 'scratch-your-own-itch' project I started working on about 9 months ago. Front end is GWT, back end is Java servlets. Database was originally MySQL but switched to Prevayler for performance reasons. My YouTube video gives a nice overview of the benefits of a virtual whiteboard: http://youtu.be/MDEHFHG1l3Y What does Hacker News think?
This is another HTML5 / Canvas collaborative drawing app that I built which uses Google Drive for storage and thus runs completely locally. Works offline and runs in Chrome, Firefox, Safari, iOS, and Android and supports touch. http://thesavior.github.io/draw/
The one thing my wife (a math teacher) has always been craving is a video solution for these - that is, write equations or annotate a document on our android tablet while she narrates, then upload the video to YouTube. Last I checked there wasn't a good offering on the play store for this.