queryTagHistory with Easy Chart

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I'm building an interface to collect tag usage statistics. Currently getting count in historian using queryTagHistory and pulling that into a regular chart.

I would like to use the easy chart so I don't have to put a bunch of the functionality present there into this chart. The analysis methods I have are selectable intervals similar to an easy chart (# + units) to bin the data, but also forward and backward running sums.

I don't see a way to add intervals into easy chart tags. Additionally, only forward sum appears to be available, while backward sum is arguably more useful for seeing trends after changes have been made.

  • Is there a way to accomplish this with easy chart in a non-scripted fashion?
  • Assuming not, is there a way to pull data with queryTagHistory, manipulate it and feed it to an easy chart?

I'm fine if the answer is no, but it would be nice.

Thanks all!

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EasyChart always does its own queries. If you cannot make its interface do the calculations you want, it just cannot do them. You may need to use the Classic Chart with custom queries.

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As always, thank you Phil! Much appreciated.