Allow casting from GridImage to QuadMesh #1223
Useful now and will continue working just fine in the future when the image interface has been added. Lets you do something like this to get hover information from a datashaded plot:
%%opts QuadMesh (fill_alpha=0) [tools=['hover']] points = hv.Points(np.random.multivariate_normal((0,0), [[0.1, 0.1], [0.1, 1.0]], (1000000,))) datashade(points, width=400, height=400) * hv.util.Dynamic(aggregate(points, width=100, height=100), operation=lambda x: hv.QuadMesh(x))
jlstevens merged commit
Mar 23, 2017
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