How to invoke "click" event programmaticaly in d3. Creating a brush region programatically. For auto-redraw such that the focus of a 1D brush matches the graphed domain, you need to do as follows: (1) Apply the brush scale to the graphed domain (i.e., the brush extent) --> store in var brushExtent; (units: pixels) (2) Within the brush element (class='brush'), select the <rect> with class='extent'. (3) If the brush is horizontal (i.e., for the x-axis), set the 'x' attribute to the first value in brushExtent.
Stephen Boak — Easy as (a) Pie. Through my work at Boundary I’ve started playing with the D3 visualization library, trying to build some interesting visualizations for our real-time network monitoring dashboard.
I’ve really been enjoying D3 and Mike Bostock, the creator, has been extremely helpful to me and lots of others in the d3-js Google Group. Since the library is new, I hope the series of experiments I post here can be helpful in spreading some knowledge and awareness of the library. What You’re Building My first experiment is an animated pie chart meant to visualize a breakdown of incoming network traffic by port.
How-To: Update a Pie Chart (Part 2) Bost.ocks.org/mike/d3/workshop/