# Bar Chart - Fixed Lower and Upper Bound?

**URL:** <https://forum.inductiveautomation.com/t/bar-chart-fixed-lower-and-upper-bound/8122>\
**Category:** Ignition\
**Created:** [March 7, 2014, 11:00pm UTC](https://forum.inductiveautomation.com/t/bar-chart-fixed-lower-and-upper-bound/8122 "2014-03-07T23:00:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Paullys50](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paullys50/32/3324_2.png) [@Paullys50](https://forum.inductiveautomation.com/u/Paullys50)\
**Post date:** [March 7, 2014, 11:00pm UTC](https://forum.inductiveautomation.com/t/bar-chart-fixed-lower-and-upper-bound/8122/1 "2014-03-07T23:00:09Z")

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Question, for the Bar Chart I am using the AREA function, and I see that I can turn off auto range on the Value Axis, however there doesn’t seem to be the same option for the category axis.

I assume it’s because it’s geared to display Bar charts, which of course you would only display as many bars as there are categories, however with area charts I think it’s a bit different.

I’m trying to show the relationship of a vessel’s agitator speed versus the level of product a vessel contains. My “category” axis contains multiple level % set points, my “value” axis is my agitator speed set point at each category set point.

I can enter various level/speed relationships, and the AREA graph shows a nice representation of my set points, and between set points I calculate a linear relationship, so the speed is constantly changing with level based on the slop of this line between the set points.

Because I can’t put a fixed range on the category, my graph looks skewed.

Any suggestions?

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<div class="post-metadata">

**Author:** ![Paullys50](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paullys50/32/3324_2.png) [@Paullys50](https://forum.inductiveautomation.com/u/Paullys50)\
**Post date:** [March 8, 2014, 12:11am UTC](https://forum.inductiveautomation.com/t/bar-chart-fixed-lower-and-upper-bound/8122/2 "2014-03-08T00:11:19Z")

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I’ve also tried doing an XY plot with the Chart object for the same affect, but the X axis seems to force you to use time values.