Large circle diameter:
Large circle stroke:
Small circle diameter: Small circle stroke:
This is a dial I have built using the HTML5 canvas tag alongside a bit of jQuery.
It has no specific purpose, although could potentially be used for a number of things.
The starting and finishing point of the dial can be altered from between 20 and 350 degrees; the size of the dial can also be changed (a current maximum of 500px) and the output results in an integer being given between 0 and 100.
In this example the output has been trebled and added to the height of a div tag.
I'm currently in the process of porting this functionality into a jQuery plugin.