Re: Search and filter the invisible elements in the view range.

Anonymous · ‎04-14-2014

I am trying to find out all elements in a view. Regardless it is hidden or visible.

I can get the visible elements by FilteredElementCollector(Document, ElementId) that will search and filter the visible elements in a view,

but there seems to be no way to access the invisible. I try to switch the display mode by using View.EnableRevealHiddenMode().

The problem can be solved, but this process is slow in large projects. There is a better way to do this?

ollikat · ‎04-14-2014

Hi

Have you saw this one...if it's any help

http://forums.autodesk.com/t5/Revit-API/Determine-if-an-element-is-visible-in-a-view/td-p/4896040

Anonymous · ‎04-14-2014

Dear ollikat,

Thank you for your reply. I have seen, and he is the same problem.

This gave me some hints,but did not completely solve my problem.

In the absence of a better solution,I do like this:

private IList<Element> GetViewElements(Document doc)
{
    var elemList = new List<Element>();
    var view = doc.ActiveView;
    var ck = view.IsInTemporaryViewMode(TemporaryViewMode.RevealHiddenElements)
    if(!ck)
    {
        var trans = new Transaction(doc,"show invisible");
        tran.Start();
        view.EnableRevealHiddenMode();
        var collector = new FilteredElementCollector(_doc, _doc.ActiveView.Id);
        elemList =collector.WherePasses(PassesFilter).ToElements();
        trans.RollBack();
    }
    else
    {
        var collector = new FilteredElementCollector(_doc, _doc.ActiveView.Id);
        elemList = collector.WherePasses(PassesFilter).ToElements();
    }
    return elemList;
 }