topic Re: Access Imported Category color attributes in Revit API Forum

Access Imported Category color attributes

Anonymous — Fri, 22 Feb 2019 15:20:58 GMT

Hi,

Is there a similar method to IsPainted(ElementId, Face) that can retrieve color information for imported categories?

When I import a SAT file, I see that the faces retain their color, however this color is lost when I recreate the solids using FreeFormElement.Create(solid).

If I can maintain that color information from the original import, I can then create materials and apply them to newly created solids.

Thanks.

Re: Access Imported Category color attributes

jeremytammik — Mon, 25 Feb 2019 10:55:56 GMT

All materials and categories are stored centrally in the Revit model.

You can use RevitLookup to explore them, their properties, and their relationships to your solids:

https://github.com/jeremytammik/RevitLookup

Once that is clear, you can probably assign the existing imported categories and materials to newly created forms as well.

Re: Access Imported Category color attributes

Anonymous — Mon, 25 Feb 2019 16:45:08 GMT

Thank you,

The imported materials do show up using "Snoop DB", along with the default materials. See screenshot 1

But when I try to filter out the materials using

collector.WherePasses(new ElementClassFilter(typeof(Material))).Cast<Material>()

only the default materials are returne (screenshot 2)

Can you tell me what method is Revit Lookup using to retrieve the imported materials? I am pretty beginner with Visual Studio and C# and couldn't find out how it's done by looking at the source code for Lookup.

Re: Access Imported Category color attributes

Anonymous — Mon, 25 Feb 2019 21:59:46 GMT

I found the issue,

I was using document.import() method which for some reason does not retain the color information. I was able to go around this issue by using shapeImporter class.