# Polycurve from Curves with Near Start/End Points

**URL:** <https://forum.dynamobim.com/t/polycurve-from-curves-with-near-start-end-points/115304>\
**Category:** Revit\
**Created:** [October 23, 2026, 4:15pm UTC](https://forum.dynamobim.com/t/polycurve-from-curves-with-near-start-end-points/115304 "2026-10-23T16:15:01Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Gcf\_Design](https://avatars.discourse-cdn.com/v4/letter/g/77aa72/32.png) [@Gcf\_Design](https://forum.dynamobim.com/u/Gcf_Design)\
**Post date:** [October 23, 2026, 4:15pm UTC](https://forum.dynamobim.com/t/polycurve-from-curves-with-near-start-end-points/115304/1 "2026-10-23T16:15:01Z")

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Within the image it comprises of 3 curves, therefore 6 points. The highlighted areas comprises 4 points in total, where each pair is a few millimetres from one another.

I sit possible to have potentially many of these placeholders, extract their curves and start/end points, then repair or handle the ‘close vicinity’ points and return new curves?

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/6/f616d0dbff5299e59a221c5b30ce6c3c145f169c.png)

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**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\
**Post date:** [October 23, 2026, 7:50pm UTC](https://forum.dynamobim.com/t/polycurve-from-curves-with-near-start-end-points/115304/2 "2026-10-23T19:50:16Z")

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Can you label what you mean by 3 curves? I see a LOT more than that here.

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**Author:** ![Andrew\_Hannell](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/andrew_hannell/32/103315_2.png) [@Andrew\_Hannell](https://forum.dynamobim.com/u/Andrew_Hannell)\
**Post date:** [October 23, 2026, 10:41pm UTC](https://forum.dynamobim.com/t/polycurve-from-curves-with-near-start-end-points/115304/3 "2026-10-23T22:41:04Z")

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Yes, I agree with @jacob.small - the question is not clear

It probably more of a simple geometry problem.

If the question is what I think it is:  
If the red and green lines are not quite cotangent (and you have 2 intersection points) it is probably easier to project a line from the centre of green circles perpendicular to the red.  
Then intersect that black line with either the red or green- to get either blue or purple dots respectively

Is red a circle or a spline ?

 ![Screenshot 2026-10-24 at 7.37.36 am](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/3/3/336e3081ef740426e495756ebad234c7d6861179.png)