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stuff

#animations

stick figure animator 22 June 2010

One thing the ajax animator’s pretty bad at is stick figures. Sure it’s not impossible, but it can’t really compare with the ol-fashioned frame-by-frame joint-manipulation likeness of Pivot. It’s called stick2 because the original experiment with stickfigures was named stick.html, and when I went to extend it and didn’t feel like setting up a git/svn repo, I copied the file and named it stick2.html, and with no good project-naming skills, it stayed that way.

Anyway, this was a project that got pretty close to completion in early march, but I never bothered to blog about it until now. It should work pretty not-bad on an iPad J(except the color picker), though honestly, I’ve never tried it.

The interface is pure jQuery/html/css. The graphics are done with Raphael, but the player actually uses <canvas> for no particular reason.

Basically, it’s organized into two panels, the left-side figures-box and the bottom timeline. The figures-box contains figures (amazing!) and clicking on them adds them to your canvas. The two defaults are the pivot-style stickman, and something called “blank” which is a root node with no additional nodes. Though it shows up as a orange dot, unless you add something to it, it doesn’t have any actual look when viewed in the player.

On top is the context-sensitive buttons. Well the buttons in my screenshot aren’t context sensitive, they’re permanent. But when you click on a node, a new set of buttons (and words too!) appears. One is a line and the other is a circle. Click them to add a new segment or circle to the currently selected node. Then are various settings for the current segment (each node other than the root one is associated with a segment). Clicking those allows you to modify them. Also, a red X appears on the right, and that basically means remove the node and the child nodes.

So, now you have some extra nodes, how do you change them? Simply hold it down and drag, and the the segments move as well. But note that the length of the segment doesn’t change as you move it. That’s because by default, it locks the length of the segments. There are two ways to get around it. The first is to hold shift while dragging. The second is to tap the little lock icon on the top left.

On the bottom, is the timeline with live-previews of your frames with a semitransparent gray backdrop of numbers. Switch between each one by clicking on them and add one at the end by hitting the green “Add new frame” button.

On the canvas, there are two yellow squares, those allow you to resize the canvas.

On the very left of the top toolbar, is the play button. Hit it and the figures toolbox minimizes and it plays out your animation. Click it again to get back. Then is a little upload button. Hit it and then a little box pops up with a link to where you can find your animation in a way that you can share and to edit (not actually edit, but more like fork, as each save is given a unique id). Next is the download button which you hit, and get prompted by a big prompt-box which you use to paste in the ID of the animation you (or someone else) has saved, so you can edit it. Most of the time that’s useless as when you send a link with the player, it has a button which says “Edit”.

Sample animation: http://antimatter15.com/ajaxanimator/stick2/player.html?rlsm4lx14c

Try the application out: http://antimatter15.com/ajaxanimator/stick2/stick2.html

Code: http://github.com/antimatter15/stick2


Progress Report 22 October 2007

I’ve not been releasing anything for a while, for several reasons:

1. I’m converting everything to the Ext UI (from textareas, tables, etc. to Ext grids, form fields) 2. I’m completely rewriting the timeline. including a host of new features much for speed. (several TIMES faster) mainly becuase it generates only 300 frames per layer by default, instead of 500, but automatically adds new frames DYNAMICALLY when more is needed. But the rewrite is sorta unstable 3. Tons of UI upgrades. A short list of changes from the top of my head are, a new login stystem (lot’s of fading effects) My Animations; list, faster animation loading. The user animation browser is completely changed-with stuff like Rating animations and comments coming. 4. Sorta goes in UI upgrades, is a new loading splash screen. It has a progress bar, showing status. And CSS is dynamically added, and loads from either the local server, or google code’s subversion (faster). 5. Cross Domain Ajax. The current ajax implementation only allows you to generate flash animations if you are on a php server with all the libraries/files installed. And sometimes you go to it from a proxy or google code beta or something. If that happens, you will not have any access to creating flash animations. So, soon it will curcumvent this restriction, by using a script tag hack, to load the animations from the server. Though the current ajax implementation will still be used for larger animations. And i might revive animation compression for this purpose. 6. Upgrading to Ext 2.0, this is not really happening NOW, but is being actively thought of. It’s not really a “painless” upgrade, with lot’s of stuff to modify/rewrite. 7. Everything has two options. One is to load from subversion, or the local server. It’s better if you load it from subversion, if you are mirroring it, or if your server is slow. And in many cases it’s really fast, and automatically gzip encodes the stuff. Great isnt it? so it has an option of loading all* (okay, most…) images and CSS from google code.

8. And even more stuff……