topic Re: SlabShapVertexArray don't work for me in Revit API Forum

SlabShapVertexArray don't work for me

Anonymous — Tue, 15 Dec 2020 09:14:52 GMT

Hello,

In one of my plugin i would like to move floor vertex height, so I used this line :

SlabShapeVertexArray slabShapeVertexArray = floor.SlabShapeEditor.SlabShapeVertices;

in order to get the vertex array and I used a "for" loop to get each vertex :

for (int i = 0; i < slabShapeVertexArray.Size; ++i)
{
SlabShapVertex vertex = slabShapeVertexArray.get_Item(i);

}

but i never goes in the loop, so I i check the value of slabShapeVertexArray.Size and it's equal to 0;

Can someone help me Because i Don't know why i can't get the vertices

Re: SlabShapVertexArray don't work for me

RPTHOMAS108 — Tue, 15 Dec 2020 10:24:43 GMT

Did you call SlabShapeEditor.Enable?

Note that you can't use this on a slab with a slope set by sketch.

Re: SlabShapVertexArray don't work for me

Anonymous — Tue, 15 Dec 2020 13:22:28 GMT

No, i didn't call this method, but i've tried and it Don't change anything, the size field is still equal to 0.

I already use the slabShapEditor.drawPoint and it works, but the SlabShapVertexArray does not contain any Vertex

Re: SlabShapVertexArray don't work for me

RPTHOMAS108 — Tue, 15 Dec 2020 16:56:49 GMT

Yeah I see why.

You have to call Document.Regenerate if you are Enabling a slab not already enabled and manipulating the SubElements in the same transaction.

Private Function TObj137(ByVal commandData As Autodesk.Revit.UI.ExternalCommandData, ByRef message As String, ByVal elements As Autodesk.Revit.DB.ElementSet) As Result If commandData.Application.ActiveUIDocument Is Nothing Then Return Result.Cancelled Else Dim UIDoc As UIDocument = commandData.Application.ActiveUIDocument Dim IntDoc As Document = commandData.Application.ActiveUIDocument.Document Dim AcView As View = UIDoc.ActiveGraphicalView Dim R1 As Reference = Nothing Try R1 = UIDoc.Selection.PickObject(Selection.ObjectType.Element) Catch ex As Exception End Try If R1 Is Nothing Then Return Result.Cancelled Else Dim El As Floor = TryCast(IntDoc.GetElement(R1), Floor) If El Is Nothing Then Return Result.Cancelled Else Using tx As New Transaction(IntDoc, "Edit slab") If tx.Start = TransactionStatus.Started Then If El.SlabShapeEditor Is Nothing Then tx.RollBack() End If If El.SlabShapeEditor.IsEnabled = False Then El.SlabShapeEditor.Enable() End If If El.SlabShapeEditor.SlabShapeVertices.Size = 0 Then IntDoc.Regenerate() End If For I = 0 To El.SlabShapeEditor.SlabShapeVertices.Size - 1 Dim Vx As SlabShapeVertex = El.SlabShapeEditor.SlabShapeVertices(I) If I = 1 Then El.SlabShapeEditor.ModifySubElement(Vx, 0.5) End If Next tx.Commit() End If End Using Return Result.Succeeded End Function

Re: SlabShapVertexArray don't work for me

josborneW959Y — Mon, 05 May 2025 21:12:06 GMT

You have to do a couple things...

SlabShapeEditor editor = floor.GetSlabShapeEditor();

editor.Enable();

doc.Regenerate();

After regenerate editor.SlabShapeVertices will return Vertex. A little bit crazy in my opinion...