public static List<DecalData> GetDecalsFromDocument(Document doc)
{
var ids = ExternalFileUtils.GetAllExternalFileReferences(doc);
var decalIds = (from id in ids
let ext = ExternalFileUtils.GetExternalFileReference(doc, id)
where ext != null && ext.ExternalFileReferenceType == ExternalFileReferenceType.Decal
select id);
var collector = new FilteredElementCollector(doc);
var elems = collector.OfCategory(BuiltInCategory.OST_GenericModel)
.WhereElementIsNotElementType().ToElements();
var decals = elems.Where(e => decalIds.Contains(e.GetTypeId())).ToList();
var result = new List<DecalData>();
var op = new Options();
op.DetailLevel = ViewDetailLevel.Medium;
foreach (var decal in decals)
{
var points = new List<PointData>();
var geoElement = decal.get_Geometry(op);
foreach (GeometryObject go in geoElement)
{
if (go is Line line)
{
var ptStart = line.GetEndPoint(0);
points.Add(new PointData(ptStart.X, ptStart.Y, ptStart.Z));
}
}
if (points.Count != 4)
continue;
var ext = ExternalFileUtils.GetExternalFileReference(doc, decal.GetTypeId());
if (ext == null)
continue;
result.Add(new DecalData
{
Points = points,
MapFileName = ModelPathUtils.ConvertModelPathToUserVisiblePath(ext.GetPath())
});
}
return result;
}
/// <summary>
/// Remove DWF links from model and return
/// the total number of deleted elements.
/// </summary>
int RemoveDwfLinkUsingExternalFileUtils(
Document doc)
{
List <ElementId> idsToDelete
= new List <ElementId>();
ICollection <ElementId> ids = ExternalFileUtils
.GetAllExternalFileReferences(doc);
foreach (ElementId id in ids)
{
Element e = doc.GetElement(id);
Debug.Print(Util.ElementDescription(e));
ExternalFileReference xr = ExternalFileUtils
.GetExternalFileReference(doc, id);
ExternalFileReferenceType xrType
= xr.ExternalFileReferenceType;
if (xrType == ExternalFileReferenceType.DWFMarkup)
{
ModelPath xrPath = xr.GetPath();
string path = ModelPathUtils
.ConvertModelPathToUserVisiblePath(xrPath);
if (path.EndsWith(".dwf") ||
path.EndsWith(".dwfx"))
{
idsToDelete.Add(id);
}
}
}
int n = idsToDelete.Count;
ICollection <ElementId> idsDeleted = null;
if (0 < n)
{
using (Transaction t = new Transaction(doc))
{
t.Start("Delete DWFx Links");
idsDeleted = doc.Delete(idsToDelete);
t.Commit();
}
}
int m = (null == idsDeleted)
? 0
: idsDeleted.Count;
Debug.Print(string.Format(
"Selected {0} DWF external file reference{1}, "
+ "{2} element{3} successfully deleted.",
n, Util.PluralSuffix(n), m, Util.PluralSuffix(m)));
return(m);
}