Importing a polycurve from Dynamo to Revit

Revit
1

Hello everyone,

I have this polycurve that I have constructed using a Dynamo script :slight_smile:

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image1920×1080 243 KB

However, using the node ImportInstance.ByGeometry, I am able to see my curve geometry in Revit but I cannot select it. Being able to select it is important for me because this curve defines the geometry of a prestressed cable that I am going to select and transform into a cable using the SOFISTIK Bridge Modeler plugin for Revit.

Any insights on what is going wrong when porting the curve from Dynamo to Revit?

Joseph

2

Try ModelCurve.ByCurve

1 Like
3

I have already tried this, I get the following warning :

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EDIT : Sorry the warning is in french, it’s basically saying that Revit cannot convert PolyCurves into ModelCurves. Try to decompose your PolyCurve into several Curves. Is that doable in dynamo?

4

Yes, try the PolyCurves.Curves node

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image1103×978 158 KB

5

Hello,
Try this

Polycurve
Polycurve1099×245 26.5 KB

6

Exploding or using the Polycurve.Curves node works, however I am stuck with tiny bits of curves in the Revit model as shown below :

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image1920×1080 293 KB

Is there no way to import the Polycurve from dynamo as it is, or rejoin the tiny bits automatically in the Revit model?

7

You can make an approximation of the line by using GroupByKey and have the length of the lines be the key. Ignore the tiny lines and make a new line from the Start points of the remaining lines and ending with the Start and End point of the last line

8

I did not really understand your explanation @Marcel_Rijsmus, can you elaborate further with this? I also cannot afford to lose a lot of precision with an approximation since its a prestressed cable that has precise geometry definition in plane and elevation.

I find it kind of odd that we are able to export curves into Revit but not Polycurves…