Dynamo converting points to trees

Revit
1

Hi everyone,

I would like to ask a question. I have been busy for a long time in dynamo to convert points to a family (trees) in revit, but unfortunately I get two errors. can someone help me please? I am a new user of Dynamo. I spent a lot of hours on it, but I can not get it done.

The error I get is with the FamilyInstance.ByPoint: Warning: FamilyInstance.ByPoint operation failed. Value can not be null. Parameter name: point

The second error I get is at Element.SetParameterByName:
warning: internal error, please report: dereferencing a non-pointer

It’s about the following. I have converted from a DWG with the option dataextraction trees to a csv file. I want to convert thesdynamo_revit.rvt (1.6 MB)
e trees into a family in revit. I have installed the landform package. Below are the files that I use.

02
Schermafbeelding 2019-02-23 om 12.31.02.png1920×698 121 KB
I will also take a screenshot of the situation in Dynamo

Thanks in advance. I hope someone can help me. I have also added a screenshot of the script that I attempt to make

treemap_def01
treemap_def01.png1902×679 107 KB

dynamo_script.dyn (14.7 KB)

2

go put a watch node before the errors and trace from there. But i believe is that you have null values which causes this error

3

I placed the watch node in different places for the errors, but unfortunately that did not lead to the error.

4

Hello Mr @fransm29 @stillgotme

Do you reach to creat you script ?

I’m asking you becaus eI would like to do the same and I have the same problem as yours

If you want to talk more fluently, let’s do it by e mail : laurent.gianviti@haller-wasser.ch

Thank you very much

Have a nice day !

Best regards

Laurent GIANVITI