Hi Nicola, While I think that trying is always good, I think instead of hacking it, I > would like to approach it theoretically and from first principles. > > To give you an example, just dirty checking might be stopping. If I have > 2.000 points, will it replicate that? if I add +10 to each what will > happen? > If I filter the 2.000 points by x > 10 and that would also change other > visualisations, what will happen? > Well, over here we say, the proof is in the pudding. To answer a few of your questions, Yes, dirty checking will duplicate it. adding +10 to each will hmm, add 10 to each point? Your question probably will be, what happens to performance. Well, that is dependent on how you handle it. adding +10 itself can be done in 1 go, and will take a few Ms (mostly depending on your system!) Have a look at how many times it can be done in a second <http://jsperf.com/parsing-an-array>here Dirty checking might be a tad slower as that, but it will give you an idea ;)
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