Revit API过滤元素类别(FamilySymbol与FamilyInstance)

仅OfCategory()过滤的元素包含系统FamilySymbol OfClass(typeof(FamilyInstance))过滤出来文档中族实例。

仅OfCategory()过滤的元素包含系统FamilySymbol

OfClass(typeof(FamilyInstance))过滤出来文档中族实例。

//过滤元素类别

[Transaction(TransactionMode.Manual)]

[Regeneration(RegenerationOption.Manual)]

public class cmdGetCate : IExternalCommand

{

    public Result Execute(ExternalCommandData cmdData, ref string msg, ElementSet elements)

    {

        UIDocument uiDoc = cmdData.Application.ActiveUIDocument;

        Transaction ts = new Transaction(uiDoc.Document, "SetFamily");

        ts.Start();

        FilteredElementCollector collector = new FilteredElementCollector(uiDoc.Document);

        collector.OfCategory(BuiltInCategory.OST_DuctFitting);//过滤出来系统包含的Symbol与文档包含的Instance

        //collector.OfClass(typeof(FamilyInstance)).OfCategory(BuiltInCategory.OST_DuctFitting);

        int iSymbol = 0;

        int iFi = 0;

        foreach (Element el in collector)

        {

            if (el is FamilySymbol)

                iSymbol += 1;

            else if (el is FamilyInstance)

                iFi += 1;

        }

        TaskDialog.Show("count", iSymbol + "," + iFi);

        ts.Commit();

        return Result.Succeeded;

    }

}