/// <summary>
/// Get the view crop element and crop region curves
/// </summary>
/// <param name="view"></param>
/// <returns></returns>
internal static ViewCrop GetViewCrop(Autodesk.Revit.DB.View view)
{
var doc = DocumentManager.Instance.CurrentDBDocument;
TransactionManager.Instance.EnsureInTransaction(doc);
ViewCrop viewCrop;
using (SubTransaction tGroup = new SubTransaction(doc))
{
tGroup.Start();
using (SubTransaction t1 = new SubTransaction(doc))
{
// Deactivate crop box
t1.Start();
view.CropBoxVisible = false;
t1.Commit();
doc.Regenerate();
// Get all visible elements, which does not include the crop box
FilteredElementCollector collector = new FilteredElementCollector(doc, view.Id);
ICollection <ElementId> shownElems = collector.ToElementIds();
// Activate the crop box
t1.Start();
view.CropBoxVisible = true;
t1.Commit();
doc.Regenerate();
// Get all visible elements, excluding everything but the crop box
collector = new FilteredElementCollector(doc, view.Id);
collector.Excluding(shownElems);
viewCrop.cropElement = collector.FirstElement();
viewCrop.cropRegion = view.GetCropRegionShapeManager().GetCropShape().First();
}
tGroup.RollBack();
}
TransactionManager.Instance.TransactionTaskDone();
return(viewCrop);
}
