# Reference point from local coordinates

**URL:** <https://prepomax.discourse.group/t/reference-point-from-local-coordinates/2999>\
**Category:** General Questions\
**Created:** [October 8, 2025, 9:49am UTC](https://prepomax.discourse.group/t/reference-point-from-local-coordinates/2999 "2025-10-08T09:49:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Vaceng](https://avatars.discourse-cdn.com/v4/letter/v/eb9ed0/32.png) [@Vaceng](https://prepomax.discourse.group/u/Vaceng)\
**Post date:** [October 8, 2025, 9:49am UTC](https://prepomax.discourse.group/t/reference-point-from-local-coordinates/2999/1 "2025-10-08T09:49:33Z")

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Hello, I recently discovered PrepoMax and started to use it. I am impressed!.

Having created my first static analysis I i’m now trying something with an eccentric load to derive the torsion of a section. To position the eccentric load I need to use the Rigid body constraint, set by a reference point. My problem is that I can’t place the reference point because the global coordinates are outside of the model. I can’t place the reference point by the other options like ‘On Point’ etc. Is there a way to set the reference point using Local Coordinates. I don’t see a way to use local with reference point.

Nigel

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**Author:** ![FEAnalyst](https://yyz2.discourse-cdn.com/free1/user_avatar/prepomax.discourse.group/feanalyst/32/688_2.png) [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\
**Post date:** [October 8, 2025, 9:53am UTC](https://prepomax.discourse.group/t/reference-point-from-local-coordinates/2999/2 "2025-10-08T09:53:54Z")

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You can’t use local coordinate system for that, but you can choose the “Coordinates” mode and enter the 3 (global) coordinates manually in the input fields below.