Reactors? Trying to change LTScale when closing. - Help Please?

[ReachAndre]

Hello all,
Our company's toolbar uses the LTSCALE (LTS) in many of the macros and lsps for block insertion scale.
Unfortunately this means we have to use a LTS for designing and change the LTS before plotting.

I think I will eventually change the many macros and lsps they have ti use Dimscale, however this is not an option for today.

I am unfamiliar with reactors and just want to write a reactor that changes the LTS do 1 as we close the DWG.

Thanks all,
Andre

[BlackBox]

Hello all,
Our company's toolbar uses the LTSCALE (LTS) in many of the macros and lsps for block insertion scale.
Unfortunately this means we have to use a LTS for designing and change the LTS before plotting.

I think I will eventually change the many macros and lsps they have ti use Dimscale, however this is not an option for today.

I am unfamiliar with reactors and just want to write a reactor that changes the LTS do 1 as we close the DWG.

Is simply restoring LTSCALE == 1.0 at drawing open via AcadDoc.lsp an option by chance?



Separately, instead of using DIMSCALE, consider using CANNOSCALEVALUE sysvar, to replace LTSCALE. As a best practice, your customizations should be first storing the current LTSCALE value, prior to changing it, and then restoring said value when done.

Cheers

[BlackBox]

Here's a command reactor I slapped together; modify as needed:

(vl-load-com)

(defun Reactor:Start ()
  (or *Reactor*
      (setq *Reactor*
             (vlr-command-reactor
               nil
               '(
                 (:vlr-commandWillStart . Callback:CommandWillStart)
                )
             )
      )
  )
)

(defun Callback:CommandWillStart (rea cmd)
  (if (wcmatch (strcase (car cmd)) "SAVE*")
    (progn
      (prompt "\nLTSCALE set to ")
      (princ (setvar 'ltscale 1.0))
    )
  )
)

(Reactor:Start)
(princ)

[ReachAndre]

Is simply restoring LTSCALE == 1.0 at drawing open via AcadDoc.lsp an option by chance?

I thought of this but the idea was so that if we plot from SheetSetManager, the drawings would always be saved with the LTScale as desired.

Separately, instead of using DIMSCALE, consider using CANNOSCALEVALUE sysvar

I will take this under advisement.

Thanks for the help, I will test the code shortly,
Andre