4 ms·Best guess they use an integral images to do the zoomingby wrnr 6y agoBest guess they use an integral images to do the zoomingMBaert 6y agoGood guess! We do some cool subsampling (certainly on big files) to be able to show a lot of datapoints.wrnr 6y agoMaybe the financial industry is interested in it, they have time series too