Revit 二次開發 —— 與結構梁發生碰撞元素的篩選

1.過濾結構柱

FilteredElementCollector col = new FilteredElementCollector(_doc, selectedId);
col.OfCategory(BuiltInCategory.OST_StructuralFraming).OfClass(typeof(FamilyInstance));

2.遍歷1.中篩選到的結構柱，篩選碰撞點

FilteredElementCollector interCol = new FilteredElementCollector(_doc);	
foreach (FamilyInstance elem in col.ToElements())
 {
       ElementIntersectsElementFilter filter = new ElementIntersectsElementFilter(elem);//碰撞過濾器
       interCol.WherePasses(filter);
}