Global dimension override

[bohoon1809732]

Hello everybody, this is my first post.

I am just starting my adventure with lisp so please forgive me if sometimes I will ask about obvious basics.

At work we often have a problem with overriden dimensions. Drawings that we receive are in 2d but are created from a 3d model. Because of that all the dimensions are overriden even if they are not changed.
I would like to write a lisp that would be able to:

1. Globally take all the overriden dimension text (for all dimensions in the drawing), check if they are matching with actual measurement and if not than overline them ( I guess the easiest way to do this would be by using " %%o " before the overriden text)
2. Choose (mulitiple) dimensions, take the actual measurement and override it again with overline - this one could be used in case I am planning to stretch some shapes

These could actually be two different lisps.
Important to me is to understand the code in your propositions, so all the comments on side would be appreciated
One more thing. I have seen some lisp codes before but I have no idea about the Visual Lisp.

Thank You for all responses

forgive me my english :P

[jayhay35365091]

I don't know if a lisp routine is necessary unless you are planning to automate this through multiple drawings. Try the dimreassoc command in express tools. You could use qselect, filter, or select similar to select all your dimensions first. If a lisp is required try the code below:

(defun C:test ()
(setq sel1 (ssget "X" '((0 . "DIM*"))))
(command "._PSelect" "_single" sel1)
(c:dimreassoc)
(princ)
)