# Easy Chart Customizer for High Vacuum Pressures

**URL:** <https://forum.inductiveautomation.com/t/easy-chart-customizer-for-high-vacuum-pressures/113066>\
**Category:** Ignition\
**Tags:** ignition81, vision\
**Created:** [January 5, 2026, 3:18am UTC](https://forum.inductiveautomation.com/t/easy-chart-customizer-for-high-vacuum-pressures/113066 "2026-01-05T03:18:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![warren](https://avatars.discourse-cdn.com/v4/letter/w/97f17d/32.png) [@warren](https://forum.inductiveautomation.com/u/warren)\
**Post date:** [January 5, 2026, 3:18am UTC](https://forum.inductiveautomation.com/t/easy-chart-customizer-for-high-vacuum-pressures/113066/1 "2026-01-05T03:18:15Z")

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I have an Easy Chart that is setup to read pressures from various sensors. The question I have is reference to the axis and how I can best show this data. These pressures are all measured in Torr, so I would expect a range from 780’s (atmosphere) down to a high vacuum level (9.99E-8). Here’s my current setup:

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/2/f298c2a92268f7a2d86977864c19a27929b0d276.png)

How can I create a range for my chart to display these wide ranges of data? I’d ideally like to have this showing a range from 1000 torr all the way to down to 1.0E-9 with major increments every decade all the way down to the low.

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [January 5, 2026, 12:45pm UTC](https://forum.inductiveautomation.com/t/easy-chart-customizer-for-high-vacuum-pressures/113066/2 "2026-01-05T12:45:28Z")

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You need a logarithmic axis. See this topic:

> [@Vision Chart - possible to show minor tick labels on logarithmic axis?](https://forum.inductiveautomation.com/t/vision-chart-possible-to-show-minor-tick-labels-on-logarithmic-axis/109651/3):
>
> I was able to build a custom Logarithmic Axis that includes labels for all the ticks Result: Configure Chart extension function script: #def configureChart(self, chart): from java.lang import Math from java.util import ArrayList from org.jfree.chart.axis import LogarithmicAxis, NumberTick from org.jfree.ui import TextAnchor class LabelAllLogTicksAxis(LogarithmicAxis): def refreshTicksVertical(self, g2, dataArea, edge): lowerBound = self.range.lowerBound upperBound = s…