Hi All, The below Python script first get’s the AssemblyOrigin of an AssemblyInstance. GetTransform Next step is the rotation of this AssemblyOrigin. CreateRotationAtPoint This is the part that doesn’t work properly. The AssemblyOrigin is rotated, but it seems to take a random basepoint for thi…

Hi Kenny, Thank you very much for your time and effort to help me :thumbsup: You definitely pointed me in the right direction, and i think i found a solution… I used “ForceCloseTransaction” in stead of “TransactionTaskDone”. I looks like the script needs a hard break after each run. I have to d…

HI Erik, Maybe ik looks like it has some similarities, but this a complete new one :grinning: Kind regards, Mark

This is just a guess but using the Vector.ZAxis is essentially a vector(0,0,1) and which works in Dynamo but when used in Revit, you convert it to a point (0,0,1) and you would be rotating using this as the center point, right? So you are rotating the element around basically the origin of the proje…

Hi @kennyb6 , I made an attempt to create an axis(line) at the Origin of the Assembly. I added two lines of code (bp and axis). In the next line of code i replaced “a.ToXyz()” by “axis”. for e, a, r in zip(elems, axis, rot): trans = e.GetTransform() bp = trans.Origin axis = Lin…

The error says it all, pretty much. You made axis a line, but it wants a point XYZ. Have you tried using bp as the axis? Also, read this thread: https://forums.autodesk.com/t5/revit-api-forum/cannot-figure-out-how-the-transform-createrotationatpoint-works/td-p/5663052 It looks like what you should…

To use the Transform.CreateRotationAtPoint method, it looks like you need to use axis = XYZ.BasisZ as the axis.

[image] kennyb6: Have you tried using bp as the axis? Yes i did, but that gives me weird results (because it don’t know in wich direction it should rotate anymore). [image] kennyb6: It looks like what you should be using is Transform.CreateRotation(XYZ axis, double angle) That way i c…

I did another attempt to modify the above Python code. It works now the way i would like it to, but only for one element. If i feed it with a list of elements only the last one is modified :disappointed_relieved: Can anyone tell me why the code doesn’t work for multiple elements ? import clr imp…

Hard to tell what is wrong here without access to the Revit project or script. I am assuming you have the same number for all of the python inputs (8 of each input, except IN[0]). I don’t know if the unwrapping makes a difference as I always unwrap each element individually, not as a list. Try this …

Hi Kenny, Thanks a lot for your response. I tried your code, but unfortunately it gives me the below error. [error] I’m a Python Newby, but my gut feeling tells me there is something missing in the for loop part. [image] kennyb6: Hard to tell what is wrong here without access to the Revit…

First attempt Editing a Python script

Revit

Steven March 16, 2018, 4:09pm 10

Coming in late to the conversation but you can see awilliams code here. It works with just one element (my scripting is not quite there to get it to a list). It seams to be the same problem you are having but figured I wouls share since they are similar.

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First attempt Editing a Python script

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