# Fan Rotation Animation Problem

**URL:** <https://forum.inductiveautomation.com/t/fan-rotation-animation-problem/67937>\
**Category:** Ignition\
**Tags:** vision\
**Created:** [December 22, 2022, 3:57pm UTC](https://forum.inductiveautomation.com/t/fan-rotation-animation-problem/67937 "2022-12-22T15:57:20Z")\
**Posts on this page:** 1\
**Showing post:** 6

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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:** [December 22, 2022, 10:32pm UTC](https://forum.inductiveautomation.com/t/fan-rotation-animation-problem/67937/6 "2022-12-22T22:32:52Z")

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> [@paul-griffith](#):
>
> accumulated floating point error in the position properties

That can only occur if accumulating them instead of recalculating from (x, y) \* r \* (sin θ, cos θ). ☹

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