Expression for matID value

[arch3d]

Hello,
I would like to ask you for quick help. I hate condition expression and I never know how to use it
I have L1S with fixed ID's
Now i would like to offset Generator from spline using expression
If matID=3 would be offset defined as Input1 else  Input 2 would define offset

Many thanks for help
Michal

[Dragan]

Switch Arithmetic node to Expression and type:

return
if(XSplinematID==3,input1,input2);

[arch3d]

Thx, now i know where i made mistake:)

[Dragan]

But I`m not sure this will work on General Y Offset. I think there were issues about this because of offsetting spline under the hood. I don't have Max at the moment to check it out.

If this won't work you can try adding transform and expose Y/Z Translation parameter (depending on your generator orientation) and use it as an offset.

[arch3d]

Exacly i found this Y Offset limitation
I tested as well

return
if(XSplinematID==3,input1, if(XSplinematID==4,input2,input1));


Your expression and nested second conditional works fine in X and Z Axis.

If General Y Offset wont work ill  transform segments

[Dragan]

Yeah, I know it 

Well, you will have to use either Transform>Translate or some nesting depending on the complexity of your generator.

[arch3d]

I have nested L1S in L1S so its pretty complex - i testet segment translation - works fine

Thx again