Heatmap with latitude and longitude

Question

I want to create a heatmap from a dataset that is latitude and longitude. I have 20,000 + latitude and longitude in a text file.

Can someone tell me how to create a heat map?

I would appreciate it if someone could provide me with a free version of the heat map.

Thank!

Answer 1

There is an open source library called heatmap.js that might work for you. However, it is based on HTML5, so it will not work in older browsers. They also have GMaps Heatmap Overlay , which is why it is pretty plug and play.

Answer 2

Simpleheatmap.com . lat/lon, , -, . , , .

Answer 3

Another useful site for Heatmap is http://www.openheatmap.com

The blog also discusses the heat map: http://blog.smartbear.com/web-monitoring/the-heat-is-on-a-simple-guide-to-creating-heatmaps/