问题
I am trying to plot data collected live from bee hives. We plan to collect data every 5 minutes, so in a year there will be on the order of 100,000 data points. I want to set up a chart to plot the data, and have new data enter the chart everytime the database changes (using Meteor).
I have a simple mockup at datacomb.meteor.com These charts were made using dc.js, a d3 wrapper.
Is there a way to use the topojson.simplify (http://bost.ocks.org/mike/simplify/) functionality to pre-process the lines and reduce the number of points rendered? Has a more general simplification method been integrated into d3?
回答1:
Have you looked at Simplify.js? It does exactly this.
来源：https://stackoverflow.com/questions/16924767/simplifying-a-line-before-rendering-on-chart-in-d3