How to Access a Wall Sweep from a wall instance from Revit 2015?

[Anonymous]

I'm trying to quantify a list of stacked walls.

If I used the filtered ElementCollector there is no problem because I select all an the wall sweeps that are on the project.

var collector = new FilteredElementCollector(this.Document, view.Id).WhereElementIsNotElementType();

But if I pick a collection of Stacked walls like this.

UIDocument.Selection.GetElementIds()

Only the Stacked walls are selected, with the property GetStackedWallMemberIds() I can access the walls, Is there a way to access the element id of the wall sweeps with a property?

When you have a wall sweep you can access the wall with the GetHostIds() Something similar but from the wall object.

Thanks.

[Aaron.Lu]

Dear,
Seems there is no way to directly get WallSweep from Wall, the only workaround is to filter all WallSweep and use GetHostIds() to check with wall it belongs to.

[Anonymous]

Thanks I thought it could be other way.

I'm going to test it and see if doesn't slow down.

[Aaron.Lu]

cool, looking forward to see the result 🙂

[Anonymous · Accepted solution]

I come up with this solution

From the current selection I gather the Walls and Stacked Walls

UIDocument UIDocument;

UIDocument.Selection.GetElementIds().Select<ElementId, Element>(x => Document.GetElement(x)).Where(x =>

new BuiltInCategory[]

{

BuiltInCategory.OST_Walls,

BuiltInCategory.OST_StackedWalls

}.Contains((BuiltInCategory)x.Category.Id.IntegerValue));

Next I collect the Walls ids

IEnumerable<int> wallIds = currSel.Where(x => !(x as Wall).IsStackedWall).Select<Element, int>(x => x.Id.IntegerValue);

And Search for the walls contained on the Stacked walls

currSel.Where(x => (x as Wall).IsStackedWall).OfType<Wall>().ToList().ForEach(x => wallIds = wallIds.Union(x.GetStackedWallMemberIds().Select<ElementId, int>(y => y.IntegerValue)));

Then I select all the Wall Sweeps on the current view with the Filter Element Collector

IEnumerable<WallSweep> wallSweeps;

Document doc;

var collector = new FilteredElementCollector(doc).OfClass(WallSweep).ToElements();

IEnumerable<Element> selResult = from element in collector select element;

wallSweeps= selResult.OfType<WallSweep>();

And Finally collect the intersected elements

IEnumerable<Element> wsInSelWalls = wallSweeps.Where(x => x.GetHostIds().Select<ElementId, int>(y => y.IntegerValue).Intersect(wallIds).Count() > 0);