new with OpenLayers 3.
While it is possible to generate simple polygons and circles (like in the cluster example) I wish to generate a more complex Cluster style that varies depending on the features contained in the cluster.
For instance, I would like to generate a dynamic pie chart based on values. It is possible to render this client-side using HTML5 canvas function (arc()) and friends, but I cannot find a way to generate such a drawing using generic canvas primitives within OL3's styles.
Can anybody point me in the right direction? If impossible, I'll "enhance" OL3 with the missing functionality...