Removing text from a string

Revit
1

I have an OBJ file which I would like to import into Revit using Dynamo. I only want the coordinates from the file. I want to remove the title, and only keep all the values starting with “v”. The “v” values are the cordinates so I only want to extract these values from the file & create a list showing the points. Once I have obtained the points I can go from there.
I have looked on the forum pages but I cant seem to find where you can remove “lines of text” & not just remove or replace a single character.

Thanks in advance.Dynamo_OBJ_Test.dyn (27.4 KB)

2

I have had to add the OBJ asa text file so you can view whats inside the file but I am unable to upload the actual OBJ file.Dynamo_Obj_Test.txt (2.9 KB)

3

Hi @andy.payton

I would suggest you save txt file in to xlsx and convert to points.

image

And here is the excel file Obj_Test.xlsx (11.2 KB)

1 Like
4

Thank you for your quick response & answer, The file is originally an .obj file which has been exported from ReCap, I wanted to avoid the extra step of using Excel as I wanted to create directly from what the .obj file generates.
I still don’t know how to replace/remove the text in the string from the file as i only need the “v” values, not the “vn” or “vt”.

5

Just read from the text file (you can even use Dynamo to convert the .obj to .txt) and search for String.StartsWith "v " instead of just “v”.

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6

ObjToNumber
ObjToNumber.png1746×516 35 KB
ObjToNumber.dyn (8.4 KB)

2 Likes
7

An alternative using regular expressions:

grafik
grafik.png1811×490 60.9 KB

2 Likes
8

Thanks everyone, you have been a great help!

1 Like