topic Re: Using global variables in parameter scripts in GDL

Using global variables in parameter scripts

Bhtsz_pyd — Thu, 10 Oct 2024 19:36:45 GMT

Hi!

Is there any way to use global variables in the parameter script?

Re: Using global variables in parameter scripts

Barry Kelly — Fri, 11 Oct 2024 00:38:45 GMT

Some you can and some you can't.

In the GDL manual you will be told which ones can't.

https://gdl.graphisoft.com/reference-guide/global-variables

Barry.

Re: Using global variables in parameter scripts

Bhtsz_pyd — Fri, 11 Oct 2024 09:55:00 GMT

Thanks Barry. But the variable I want to use does not work in the parameter script. My question is actually I wonder if there is a way to use variables that do not work in the parameter script. The script I want to write is "parameters ac_toplevel= zzyzx + GLOB_HSTORY_ELEV"

Re: Using global variables in parameter scripts

Yves — Fri, 11 Oct 2024 10:19:59 GMT

Hi,
you can write your example in the master script

Re: Using global variables in parameter scripts

Barry Kelly — Fri, 11 Oct 2024 10:30:07 GMT

GLOB_HSTORY_ELEV will return "0" in the parameter script (and the mater script).

Only in the 2D or 3D script will it have a value.

So you can use in in 2D or 3D but you can not set another parameter based on its value.

Also don't just type...

parameters ac_toplevel= zzyzx + GLOB_HSTORY_ELEV

You should type ...

ac_toplevel= zzyzx + GLOB_HSTORY_ELEV

parameters ac_toplevel= ac_toplevel

This set the parameter value used in the scripts and also set the parameter value in the parameter list.

But even this won't work in this instance because GLOB_HSTORY_ELEV will always be 0 in the parameter script.

Barry.