Help to use "IF" in Autocad field

[saviell760725]

Hello everyone, sorry for my bad english.
I really need some help to create a dynamic block.
Like this...
I try to create a block, with the parameter rotate, in blockplaceholder ...
Turn this information into percentage.
So far, okay, the problem is, when I use "if" ...
Since this information is in percentage, if I rotate counterclockwise, the percentage should be positive. If I turn clockwise, the percentage value must be negative.

%<\AcObjProp Object(%<\_ObjId 2150612192>%,1).Rotation \f "%au0%pr2">%*100/45

[saviell760725]

I found this.
But I do not have time to put it into operation ...
When I succeed, I will return here to show how I did it.

[Tom Beauford]

Haven't tried it, but hmsilva's responce below about using DIESEL is probably the best option:
https://forums.autodesk.com/t5/autoc...5762970#M90167
also: https://forums.autodesk.com/t5/autoc...d/td-p/3636726

Moderator this thread should probably be in the AutoCAD Fields forum.

[MMccall]

You could try rotating the rotation parameter 180 degrees, then move the grip back to its original location. In the field, first subtract 180 from the rotation value before performing any other functions.