kriging.js is an HTML5 implementation of an ordinary kriging algorithm using the canvas element. This library is useful for spatial predictions and visualization of geographical data.

This library can be used by first instantiating an object of class kriging and supplying the following arguments to the constructor and other methods:

var x = new kriging("mycanvas");
x.krig(longitude, latitude, response, polygons);
x.map(center, zoom);

Make sure you've created a canvas element somewhere in your page before you start the map:

<canvas id="mycanvas"></canvas>

All the supplied arguments should be 1-dimensional Array objects and zoom should be a positive value. The polygons argument should be a multi-dimensional Array object. For polygons 1 through n, each x and y Array object refers to the longitude and latitude, respectively, coordinate vertices for that particular polygon:

var polygons = [[x1, y1], [x2, y2], ..., [xn, yn]];