Point Configuration Example

1. heatmap.js
2. Heatmap Examples
3. Point Configuration Example

This example demonstrates configuration on a point basis with minimal configuration. The difference to the minimal configuration example is that there is now a radius property set on every datapoint. This gives you the freedom of having datapoints with different radi of influence, yay.
thank you, this example was useful

Demo

Code

// minimal heatmap instance configuration
var heatmapInstance = h337.create({
  // only container is required, the rest will be defaults
  container: document.querySelector('.heatmap')
});

// now generate some random data
var points = [];
var max = 0;
var width = 840;
var height = 400;
var len = 300;

while (len--) {
  var val = Math.floor(Math.random()*100);
  // now also with custom radius
  var radius = Math.floor(Math.random()*70);

  max = Math.max(max, val);
  var point = {
    x: Math.floor(Math.random()*width),
    y: Math.floor(Math.random()*height),
    value: val,
    // radius configuration on point basis
    radius: radius
  };
  points.push(point);
}
// heatmap data format
var data = {
  max: max,
  data: points
};
// if you have a set of datapoints always use setData instead of addData
// for data initialization
heatmapInstance.setData(data);