protected override void TrySolveInstance(IGH_DataAccess DA)
{
DB.Element element = null;
if (!DA.GetData("Element", ref element))
{
return;
}
DA.SetDataList("Materials", element?.GetMaterialIds(false).Select(x => element.Document.GetElement(x)));
DA.SetDataList("Paint", element?.GetMaterialIds(true).Select(x => element.Document.GetElement(x)));
}
private static HashSet <ElementId> GetUsedMaterialIds(Autodesk.Revit.DB.Element type)
{
HostObjAttributes hostObj = type as HostObjAttributes;
HashSet <ElementId> usedMaterialIds = new HashSet <ElementId>();
if (hostObj != null)
{
var compundStructure = hostObj.GetCompoundStructure();
if (compundStructure != null)
{
int layerCount = compundStructure.LayerCount;
for (int j = 0; j < layerCount; j++)
{
usedMaterialIds.Add(compundStructure.GetMaterialId(j));
}
}
}
List <ElementId> elementMaterialIds = type.GetMaterialIds(false).ToList();
if (elementMaterialIds.Any())
{
usedMaterialIds.UnionWith(elementMaterialIds);
}
return(usedMaterialIds);
}
