Pixel-in-Gene

It’s going to be a rather long post, so if you want to jump around, here are your way points: First steps A path for the slice Animating the pie-slice Raising the level of abstraction Custom CALayer, the PieSliceLayer Rendering the PieSliceLayer It all comes together in PieView…

Unit testing in Javascript, especially with RequireJS can be a bit of challenge. Jasmine, which is our unit testing framework does not have any out of the box support for RequireJS. I have seen a few ways of integrating RequireJS but that requires hacking the SpecRunner.html…

In the world of jQuery or for that matter, any JavaScript library, callbacks are the norm for programming asynchronous tasks. When you have several operations dependent on the completion of some other operation, it is best to handle them as a callback. At a later point when your…

As I blogged about earlier , Octopress is a great framework for writing blog posts and packs in all the features for writing a code-centric blogs. Of course, it goes without saying that the blog also looks awesome as if designed by a true designer . Some of the nicer things…

I have been using Wordpress for few years now and have been very happy with its features. In the past year, I have tried several times to change the theme on my blog and also semantify my posts by using Markdown as my de facto style. Of course, none of it happened and I was…

In JavaScript, if you set a property on the prototype, it is like a static property that is shared by all instances of the Function. This is common knowledge in JavaScript and quite visible in the code. However if you are writing all your code in CoffeeScript , this fact gets…

In the previous post on “Building a tree diagram in D3.js” we saw how the D3.js library could be used to render tree diagrams. If you haven’t read that post yet, I would encourage reading it as we will be expanding on it in this post. Now that we have a nice tree diagram of a…

In the past few weeks, I have spent some time evaluating some visualization frameworks in Javascript. The most prominents ones include: Javascript InfoVis Tookit , D3 and Protovis . Each of them is feature rich and provides a varieties of configurable layouts. In particular I…

Of late, I have been building some Html/Javascript apps and exploring a bunch of javascript libraries, including the usual suspects ( jQuery , jQuery UI , jQuery template , underscore , etc). The more interesting ones are visualization libraries like d3 , isotope…

A few days back while I was busy designing some UI for a Silverlight app, I accidentally hit upon this fun hack. If you assign a shared Brush resource to the CaretBrush property of the TextBox control, then you start seeing some crazy blinking-light effects at places where…