diesel expression in data field

[marcmemba]

Good afternoon to all! !
I hope to be in the right section.. .
I practically have a dynamic block, with an attribute and a distance parameter...and I would like to run a series of calculations automatically, through a formula, like this example I did:the problem is that I can't program in diesel.. .
Does anyone know how to do this and help me?
thanks in advance and good afternoon continuation to all! !

 

[lpservice]

should be done with the formula function and selecting the geometric properties of interest by object data field - see post → attribute blocks with expression with autocad 2011