topic Re: Global Modification in GDL

Global Modification

Lingwisyer — Tue, 14 Sep 2021 11:22:35 GMT

Hi all,

Is there someway to write back to Globals?

Ling.

Re: Global Modification

Barry Kelly — Tue, 02 Mar 2021 03:19:33 GMT

Lingwisyer wrote:
Is there someway to write back to Globals?

Not with GDL that I know of.
What GLOBAL are you trying to alter?

I am sure you could control them with an add-on or of course they are just standard Archicad settings which you can change.

Barry.

Re: Global Modification

Lingwisyer — Tue, 02 Mar 2021 03:40:28 GMT

WIDO_SILL is apparently a global parameter instead of a standard parameter like A / B / ZZYZX.

I found a modifiable version of it in ac_wido_sill which writes back to WIDO_SILL. Though this is from wall face rather than core...

Ling.

Re: Global Modification

Peter Baksa — Tue, 02 Mar 2021 09:37:14 GMT

Hi Lingwisyer,

no, globals are one-way communication from Archicad to GDL. Technically it's allowed to change them, so your code and called macros see the changed value, but AC doesn't read it back.

Re: Global Modification

Lingwisyer — Wed, 03 Mar 2021 01:26:24 GMT

Peter wrote:
globals are one-way communication

Any reason WIDO_SILL is a Global rather than a standard parameter? Or is there some other parameter that I am missing that is Reveal to Wall Core?

Ling.

Re: Global Modification

Peter Baksa — Mon, 08 Mar 2021 11:56:05 GMT

Historic reasons and keeping backwards compatibility.
You can use ac_wido_sill. The distance from wall face to core can be calculated using WALL_SKINS_PARAMS.