# XYChart in perspective :: Reference line

**URL:** <https://forum.inductiveautomation.com/t/xychart-in-perspective-reference-line/34781>\
**Category:** Ignition\
**Tags:** scripting, perspective\
**Created:** [May 15, 2020, 2:17pm UTC](https://forum.inductiveautomation.com/t/xychart-in-perspective-reference-line/34781 "2020-05-15T14:17:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![beaudoin.stephane](https://avatars.discourse-cdn.com/v4/letter/b/8edcca/32.png) [@beaudoin.stephane](https://forum.inductiveautomation.com/u/beaudoin.stephane)\
**Post date:** [May 15, 2020, 2:17pm UTC](https://forum.inductiveautomation.com/t/xychart-in-perspective-reference-line/34781/1 "2020-05-15T14:17:09Z")

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Hi there!

I am searching a way to add a reference line within the XYChart in perspective. That line will represent the average on top of the current serie.

Thanks in advance.

Stephane.