Visualize earthquake frequency by location using a heatmap layer. // Increase the heatmap weight based on frequency and property magnitude Intro to D3 workshop. This site is part of a d3.js workshop taking place May 2nd in San Francisco. The workshop is geared towards people who are comfortable with data but haven't gotten deep into web programming. We only have 15 spots total and there will be 5 instructors/TAs supporting you.Click here to apply.
Jul 18, 2016 · Heatmap. Not everything can be done with a high-level library, however. For this dashboard, we wanted a day/hour heatmap to see 911 call traffic volume. We had to drop to D3 for this. We used an example from bl.ocks.org to start with.