Is there a variable whose value determines the coordinate system

[АлексЮстасу]

Is there a variable whose value determines the coordinate system? For example, the coordinate system code?
I'd like to assign a coordinate system in a macro. Or programmatically, reading a variable and its value from a text file.

[braudpat]

Hello ARX Master

I don't think there is a specific variable !? Please check ?

I am tired and I have about 30-32 degres at home !

But you can assign the current projection system to an ACAD Field ...
With the magic expression : %《\AcVar cgeocs》%

Happy WE, Regards, Patrice

[АлексЮстасу]

Hi, Map Master!

And we now have only +11 degrees in the afternoon! Although a week ago it was up to +30.
Obviously, to balance with you.

Alas, I am never a programmer at all.
I don’t even understand in which field to write this %《\AcVar cgeocs》%.

[braudpat]

Hello

I am speaking about dynamic fields !
INSERT / FIELD... Select the System variable CGEOCS

Regards, Patrice

[АлексЮстасу]

Euronews tells me that in southern France the temperature is more than 40, and there have even been fires.

Hold on!

I could not understand, because I never used this INSERT / FIELD, I did not know about it. Thank!
But this way only I can learn about CS?
I would like to set CS by defining a variable.

[braudpat · Accepted solution]

Hello

OK OK now I understand really what you need !

There is not a direct system variable but with a single line Lisp Code , you will do the job !!
(ade_projsetwscode "xxxxxxxx")  for ACAD MAP or for ACAD CIVIL

---- To erase the projection system ---
Commande: (ade_projsetwscode "")
T

---- Projection System = "LL84" ----
Commande: (ade_projsetwscode "LL84")
T

---- Projection System = "Lambert93" ----
Commande: (ade_projsetwscode "Lambert93")
T

Regards, Patrice (The Old French EE Froggy)

[АлексЮстасу]

Ok!

I understood this:
1. Install CS using the definition of a variable is impossible.
2. In the macro or from the command line, I can specify CS using the expression: (ade_projsetwscode "<CD code>").

Thank you!