simpleheat | A tiny JavaScript library for drawing heatmaps with Canvas | Data Visualization library

There were a couple of errors in your code;

1. You cannot import libraries that don't have type definitions so what you need to do is add the library to the .angular-cli.json file and declare the variable inside the component (or globally)
2. You were using ngAfterViewInit, but not implementing it
3. Simpleheat expects an id of the canvas element or a reference to it
4. The default route is not resolving to anything, which shows a blank page

After fixing all the above, the heapmap is showed.