Return Value

The new detail ViewSection.

Create a detail ViewSection whose view volume corresponds geometrically with the specified sectionBox. The view direction of the resulting section will be sectionBox.Transform.BasisZ and the up direction will be sectionBox.Transform.BasisY. The right hand direction will be computed so that (right, up, view direction) form a left handed coordinate system. The resulting view will be cropped, and far clipping will be active. The crop region will correspond to the projections of BoundingBoxXYZ.Min and BoundingBoxXYZ.Max onto the view's cut plane. The far clip distance will be equal to the difference of the z-coordinates of BoundingBoxXYZ.Min and BoundingBoxXYZ.Max. The new detail ViewSection will receive a unique view name.

// Get a BoundingBoxXYZ instance from Revit
BoundingBoxXYZ box = document.ActiveView.CropBox;
if (null == box)
{
    throw new Exception("No BoundingBoxXYZ instance found.");
}

// Create a new view section.
ElementId DetailViewId = ElementId.InvalidElementId;
IList<Element> elems = new FilteredElementCollector(document).OfClass(typeof(ViewFamilyType)).ToElements();
foreach (Element e in elems)
{
    ViewFamilyType v = e as ViewFamilyType;

    if (v != null && v.ViewFamily == ViewFamily.Detail)
    {
        DetailViewId = e.Id;
        break;
    }
}
ViewSection viewSection = ViewSection.CreateDetail(document, DetailViewId, box);

' Get a BoundingBoxXYZ instance from Revit
Dim box As BoundingBoxXYZ = document.ActiveView.CropBox
If box Is Nothing Then
    Throw New Exception("No BoundingBoxXYZ instance found.")
End If

' Create a new view section.
Dim DetailViewId As ElementId = ElementId.InvalidElementId
Dim elems As IList(Of Element) = New FilteredElementCollector(document).OfClass(GetType(ViewFamilyType)).ToElements()
For Each e As Element In elems
    Dim v As ViewFamilyType = TryCast(e, ViewFamilyType)

    If v IsNot Nothing AndAlso v.ViewFamily = ViewFamily.Detail Then
        DetailViewId = e.Id
        Exit For
    End If
Next
Dim viewSection__1 As ViewSection = ViewSection.CreateDetail(document, DetailViewId, box)