Revit API创建标注NewTag

start

/// <summary>
/// 创建水管管径标注
/// </summary>
[Transaction(TransactionMode.Manual)]
public class CreatPipeDiameterTag : IExternalCommand
{
    #region IExternalCommand Members

    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
    {
        UIDocument uiDoc = commandData.Application.ActiveUIDocument;
        Document doc = uiDoc.Document;//当前活动文档
        Autodesk.Revit.DB.View view = uiDoc.ActiveView;//当前活动视图
        Selection sel = uiDoc.Selection;//选择集
        Transaction ts = new Transaction(doc, "水管管径标记");
        try
        {
            ts.Start();
            PipeSelectionFilter psf = new PipeSelectionFilter(doc);
            Reference refer = sel.PickObject(ObjectType.Element, psf, "请选择要标注的水管:");
            Pipe pipe = doc.GetElement(refer) as Pipe;
            if (pipe == null)
            {
                ts.Dispose();
                TaskDialog.Show("RevitMassge", "没有选中水管");
                return Result.Failed;
            }
            //Define tag mode and tag orientation for new tag
            TagMode tageMode = TagMode.TM_ADDBY_CATEGORY;
            TagOrientation tagOri = TagOrientation.Horizontal;
            //Add the tag to the middle of duct
            LocationCurve locCurve = pipe.Location as LocationCurve;
            XYZ pipeMid = locCurve.Curve.Evaluate(0.275, true);
            IndependentTag tag = doc.Create.NewTag(view, pipe, false, tageMode, tagOri, pipeMid);
            //遍历类型
            FilteredElementCollector filterColl = GetElementsOfType(doc, typeof(FamilySymbol), BuiltInCategory.OST_PipeTags);
            //WinFormTools.MsgBox(filterColl.ToElements().Count.ToString());
            int elId = ;
            foreach (Element el in filterColl.ToElements())
            {
                if (el.Name == "管道尺寸标记")
                    elId = el.Id.IntegerValue;
            }
            tag.ChangeTypeId(new ElementId(elId));
            ElementId eId = null;
            if (tag == null)
            {
                ts.Dispose();
                TaskDialog.Show("RevitMassge", "创建标注失败！");
                return Result.Failed;
            }
            ICollection<ElementId> eSet = tag.GetValidTypes();
            foreach (ElementId item in eSet)
            {
                if (item.IntegerValue == )
                {
                    eId = item;
                }
            }
            tag = doc.get_Element(eId) as IndependentTag;
        }
        catch (Exception)
        {
            ts.Dispose();
            return Result.Cancelled;
        }
        ts.Commit();

        return Result.Succeeded;
    }
    FilteredElementCollector GetElementsOfType(Document doc, Type type, BuiltInCategory bic)
    {
        FilteredElementCollector collector = new FilteredElementCollector(doc);

        collector.OfCategory(bic);
        collector.OfClass(type);

        return collector;
    }
    #endregion
}

/// <summary>
///水管选择过滤器
/// </summary>
public class PipeSelectionFilter : ISelectionFilter
{
    #region ISelectionFilter Members

    Document doc = null;
    public PipeSelectionFilter(Document document)
    {
        doc = document;
    }

    public bool AllowElement(Element elem)
    {
        return elem is Pipe;
    }

    public bool AllowReference(Reference reference, XYZ position)
    {
        return doc.GetElement(reference) is Pipe;
    }

    #endregion
}

end