Return skins of walls

[Emkave]

Good day everyone, I have a problem with returning a data about the skins of a wall in Archicad.

I have checked these links but they didn't give me much of information:
https://community.graphisoft.com/t5/Modeling/Wall-composite-construction-layers-Different-methods-di...

https://community.graphisoft.com/t5/Archicad-C-API/How-to-get-wall-materials-and-thicknesses-using-A...


I wonder if there is a pseudo code of how the information about the skins of the wall could be extracted. I am a bit unsure of how the attributes and data are stored at backed of Archicad, soooo... yeah.

Any help will be appreciated!

[Barry Kelly]

Every wall only has one 'layer' that it belongs to.

I am assuming you are wanting information on the wall 'skins'?

If so, let me know and I will edit your post - or you can edit it yourself (3 dots to the top right of post).

Barry.

[Emkave]

Hi. Sorry for the confusion.

For example I have these, what I thought to be, the wall "layers".

I want to find a way to return them via the API if possible

[Barry Kelly]

Layers are what you place the elements in when you model.

Composites are made up of skins.

Barry.

[Laszlo Nagy]

Archicad Composite Structure Skin = Revit Compound Structure Layer. There are some others like Archicad Layout = Revit Sheet, Archicad Label = Revit Tag, or Archicad Zone = Revit Room, there are probably more. 

[Emkave]

Yes, I see it. But how can I return data about those skins and structures?

[Barry Kelly]

I am afraid I have no idea, as I have never delved into the API side of things.

I am just trying to clarify the correct terminology so someone else can hopefully help you.

Barry.

[Hiromichi Shinkawa · Accepted solution]

Hi, You can get composite structure by using ACAPI_Attribute_GetDefExt() command. For the skin data, please check the API_CWallComponent structure. Also, You can find find the related sample code in API Examples (Attribute_Test.cpp).

HTH.

[Emkave]

Thank you for the answer. Is there actually a way to find out of how many skins are applied to a wall?

[Hiromichi Shinkawa · Accepted solution]

Yes, getting the wall composite index at first, then get the composite definition, the number of cwall_compItems should be the skin's number applied to that wall.

HTH.