Move datum (Levels) ends in section/ elevations in Revit

[KamilR]

Hi,
I tried to find revit API methods for moving datum ends in Revit. There are methods for turning on/ off bubbles but… do You know how to move ends of datum levels in dynamo?
btw- I have problem with moving (manual ) those ends. It’s almost impossible, i dont know why

Best Regards,
Kamil

[hamid-dpr]

You need to work with the DatumPlane of the levels.

First, determine if, in your views, levels should follow the 2D/3D extents (extent type):

SetDatumExtentType Method

Second, build the curve that you want the level extents to follow on each view and assign the curve to the datum plane:

SetCurveInView Method

[KamilR]

Hi- @hamid-dpr - thank You. I tried this, but there is a problem to get curve from revit- every time i got warrning from dynamo, e.g. curve is not a curve. I think the issue here is to select detail line, and then, convert it into curve which is ok for this method.

[hamid-dpr]

That sounds like you may be passing a dynamo curve instead of a Revit API curve.
Please check the following post and see if it fixes your problem;

Get View from SectionView | Get DatumPlane from Level | Revit API

Hello forum, I’m prototyping something and I’m having difficulties. What I’m trying to achieve: A script that modifies the 2d extends of levels in a given view. My problem: I am trying to call the DatumPlane method SetCurveInView() from the level, but the view parameter wishes for a View and not a SectionView or a FloorPlanView. Also SetCurveInView() should be called with a DatumPlane and not a Level. I know View and DatumPlane are parent objects, but how do I get them from the current vie…

[KamilR]

Thanks, it seems that converting detail line to curve is ok, but… its still not working. I hope, this script should allow us to adjust datum length ( here- level ) . To Make it clear, i added picture

Script:

Best Regards,
Kamil

[hamid-dpr]

the script shows that you fed Level 04 to the node IN[2] , but the section view shows the line drawn on Level 03. That is what the error is saying: the drawn detail line is not on Level 04’s plane.

[KamilR]

Unfortunately i still have the same warninng Even if detail line is in the same position as level datum
The curve is unbound or not coincident with the original one of the datum plane.
Parameter name: curve

[hamid-dpr]

If you can share the rvt model with that section view and detail line, I can investigate for you.
The code worked fine on a few of my models.

[KamilR]

Hi ! Thank You- I found reason… I compared two models. In first script goes right- levels elevation are integers, in model 2 they are like on screen- i’m afraid that’s the reason of problems Now, its really hard to chagne it without e.g. unjoining elements…
And …finally- it seems that great idea was to create new central file…