# Power Chart default interpretation

**URL:** <https://forum.inductiveautomation.com/t/power-chart-default-interpretation/80337>\
**Category:** Ignition\
**Tags:** ignition81, perspective\
**Created:** [October 11, 2023, 1:51pm UTC](https://forum.inductiveautomation.com/t/power-chart-default-interpretation/80337 "2023-10-11T13:51:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Jack\_Spencer](https://avatars.discourse-cdn.com/v4/letter/j/6a8cbe/32.png) [@Jack\_Spencer](https://forum.inductiveautomation.com/u/Jack_Spencer)\
**Post date:** [October 11, 2023, 1:51pm UTC](https://forum.inductiveautomation.com/t/power-chart-default-interpretation/80337/1 "2023-10-11T13:51:38Z")

</div>

The Perspective Power Chart creates new pens with the 'curveLinear' interpolation by default. What can I do to have all new pens created use another interpolation option?

I have all data historized as discrete and want it showing the step data as is, no curve interpolation. Thanks!