Slab from survey points

Hi all,
I’m trying to make concrete slab from survey points. The attached graph is a closed polycurve out of a list of points.
I got this warning: this curve will make the loop discontinuous. Any idea how to solve this?

Aren’t these two doing the same thing?
Would you mind showing the list previews of the nodes

yes those two doing the same i deleted one of them.

attached picture is showing the warning msg, any idea how to solve?

I am seeing 99 points but only 97 curves. I suspect something is off.

Maybe the Z coordinates could cause problems too in case of slight inaccuracies with decimals.
I dont think Z is needes - Try with X Y only.


Hi @hudaist ,

Could you perhaps share your points and the Dynamo file?
I suspect something like this is happening:

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I managed to solve the problem by cleaning the overlapped points and changing all Z values to zero. I’m not sure if there is a way to create a slab with different Z values??

The ‘Add Points’ node for floors is typically the intended way to elevate floor subpoints. Make the floor first, then add the subpoints to it after to elevate it relative to the height of its base level.

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