Compare 2 first characters of TextDotText

Scripting
, ,
1

Hi,

I’m writting a simple Rhinoscript.
I would like to affect a layer (already in the document) to a DotText, based on the 2 first characters of the text inside the Dot…

Using the command Rhino.TextDotText(), I have can have the text easily, but then I can’t find a way to compare only the 2 first characters.

There will always be 7 characters, but the 4 last are numbers that are variable.
This is the 2 first character that will define the Dot’s layer.

For now, the script works with the exact Dot text, taking 1000 as a variable :

Dim Selection
Selection = rhino.SelectedObjects
If IsNull(Selection) Then
	Selection = Rhino.GetObjects("Selectionner les DOT", 8192)
End If
For x = 0 To ubound(Selection)
	If Rhino.IsTextDot(Selection(x)) Then
		If Rhino.TextDotText(Selection(x)) = "ST_1000" Then
			Rhino.ObjectLayer Selection(x), "Acier"
		ElseIf	Rhino.TextDotText(Selection(x)) = "BO_1000" Then
			Rhino.ObjectLayer Selection(x), "Boulonnerie"
		ElseIf	Rhino.TextDotText(Selection(x)) = "GL_1000" Then
			Rhino.ObjectLayer Selection(x), "Bois"
		ElseIf	Rhino.TextDotText(Selection(x)) = "CA_1000" Then
			Rhino.ObjectLayer Selection(x), "Cables"
		ElseIf	Rhino.TextDotText(Selection(x)) = "AS_1000" Then
			Rhino.ObjectLayer Selection(x), "Profils aluminium"
		Else 
			Rhino.ObjectLayer Selection(x), "Divers"
		End If
	End If
Next

Any tips ?
Thanks

Test.3dm (311.5 KB)

2

You might want to look at the Pyrhon startswith function. Say your dots look like XX_nnnn where XX could be any combination of letters and nnnn could be any number.

text="AB_1234"
if text.startswith("AB"):
    print "Match"
else:
    print "No Match"

Don’t forget case matching… i.e. "AB" != "ab"

2 Likes
3

If you are just starting out with scripting, why did you choose to learn Vbscript instead of Python?

1 Like
4

Ahh… Rhinoscript.

So, you will need to use the VB “Left” function with the number 2 to get the first two characters of the text dot text. Then you can compare that it to your layers first two letters using similar VB methods.

1 Like
5

I recommend you switch to Python instead of VBScript unless you have a very good reason to prefer the latter. Multiple members of McNeel staff have recommended this on this forum in recent years.

1 Like
6

Well… I did not thought of it at first, I had some example of rhinoscript accessible.
But I did switch today on learning Python, as I faced this issue.

I understood that Python will open much more possibilities, or will allow more flexibility. Plus, it seems that there are more ressources on this subject.

I’ll do as you said @Dancergraham , thanks !

Thanks anyway for your help @Helvetosaur , I’ll try your solution to see if it works. Won’t hesitate to fill you in with the result for common knowledge.

1 Like
7

Update : I tried the Left function and it worked in Rhinoscript.