GDL: Multi Use Code Label

Lingwisyer — Wed, 24 Jun 2026 07:47:35 GMT

Hi all,

https://community.graphisoft.com/t5/GDL/Hack-the-Surface-Label/m-p/621379

*Fixed and updated attached. Working in AC22+

Display the building material, surface, composite or complex profile for most building elements. For building materials, it displays the building material ID of the chosen outside face. For the rest, it splits out the part of the attribute name set by a delimiter. For composites, this allows you to put something like a core code in one part of the name and a unique code in another.

Following on from this thread about splitting Surface names, I got it working with Composite and CP names, but have run into an issue with Building Materials when it comes to beams and columns... For all situations I have it working, I just replaced the _sContentStringsHead[1][5] parameter with the value that I wanted displayed to then be passed on into the label_marker_form stock macro to be displayed. For what ever reason though, the value that I am inserting is getting placed between a pair of numbers followed by a bmat_ID from the element. For beams, this is the number Zero. For columns it is Zero/One for the core, else One. The extra bmat_ID for columns seems to always be the core. If I do not insert anything in the the _sContentStringsHead[1][5] parameter these numbers bound a "x" usually. The veneer bmat shows if there is one though...

[old image]

_sContentStringsHead[1][5] = bmat_id

[old image]

Default _sContentStringsHead[1][5]

Ling.

Operating system used: Windows

Re: GDL: Label_Marker_Form & bmat_ID

Lingwisyer — Wed, 24 Jun 2026 06:52:45 GMT

I found out where those values are coming into the label. They are brought in from the label_content_macro and written into the _sRowsOfLabel array. To resolve my issue when it comes to the building materials of beams or columns, I just uniformly overrode the array under the relevant circumstances.

returned_parameters _nRowLabel, tempsRowsOfLabel ! making from one dimensioned array to two dimensioned idx = 0 dim _sRowsOfLabel[][] _sRowsOfLabel[1][1] = "" for i = 1 to 1!_nRowLabel for j = 1 to 48 IF bSurface = 0 & GLOB_ELEM_TYPE = 6 | bSurface = 0 & GLOB_ELEM_TYPE = 12 then !Beam or Column Building Material _sRowsOfLabel[i][j] = "" ELSE _sRowsOfLabel[i][j] = tempsRowsOfLabel[idx + j] endIF next j idx = idx + 48 next i

Ling.

topic Re: GDL: Label_Marker_Form & bmat_ID in GDL

GDL: Multi Use Code Label

Re: GDL: Label_Marker_Form & bmat_ID