- Author: Sveinn Steinarsson
- Special thanks: Borgar Þorsteinsson and DataMarket
This plugin for Flot charts downsamples data before rendering the chart. The purpose is to try retain the visual characteristics of the original line using considerably fewer data points. The algorithm (called Largest-Triangle-Three-Buckets) used in this plugin is described in a Master's thesis (see hdl.handle.net/1946/15343) in Computer Science by Sveinn Steinarsson at the University of Iceland. The topic of the thesis is how to downsample time series for visual representation and was initially suggested by DataMarket. JavaScript optimization was done with the help of Borgar Þorsteinsson.
Demo can viewed at flot.base.is.
Additional demo concerning chart resizing is also available at flot.base.is/demo-resize
series: {
downsample: {
threshold: 1000 // 0 disables downsampling for this series.
}
}flot-downsample is released under the terms of the MIT License.