Question

我有一个带有面板和按钮的工作功能区选项卡，可用于调用Dialog框以进行测试。我现在正试图从Autodesk的网站上调用这段代码，该网站应创建一个新的IndependentTag，但它不起作用。

[Transaction(TransactionMode.Manual)]
public class Tagtest : IExternalCommand
{
    #region Methods

    /// <summary>
    ///       The CreateIndependentTag
    /// </summary>
    /// <param name="document">The <see cref="Document" /></param>
    /// <param name="wall">The <see cref="Wall" /></param>
    /// <returns>The <see cref="IndependentTag" /></returns>
    public IndependentTag CreateIndependentTag(Document document, Wall wall)
    {
        TaskDialog.Show("Create Independent Tag Method", "Start Of Method Dialog");
        // make sure active view is not a 3D view
        var view = document.ActiveView;

        // define tag mode and tag orientation for new tag
        var tagMode = TagMode.TM_ADDBY_CATEGORY;
        var tagorn = TagOrientation.Horizontal;

        // Add the tag to the middle of the wall
        var wallLoc = wall.Location as LocationCurve;
        var wallStart = wallLoc.Curve.GetEndPoint(0);
        var wallEnd = wallLoc.Curve.GetEndPoint(1);
        var wallMid = wallLoc.Curve.Evaluate(0.5, true);
        var wallRef = new Reference(wall);

        var newTag = IndependentTag.Create(document, view.Id, wallRef, true, tagMode, tagorn, wallMid);
        if (null == newTag) throw new Exception("Create IndependentTag Failed.");

        // newTag.TagText is read-only, so we change the Type Mark type parameter to 
        // set the tag text.  The label parameter for the tag family determines
        // what type parameter is used for the tag text.

        var type = wall.WallType;

        var foundParameter = type.LookupParameter("Type Mark");
        var result = foundParameter.Set("Hello");

        // set leader mode free
        // otherwise leader end point move with elbow point

        newTag.LeaderEndCondition = LeaderEndCondition.Free;
        var elbowPnt = wallMid + new XYZ(5.0, 5.0, 0.0);
        newTag.LeaderElbow = elbowPnt;
        var headerPnt = wallMid + new XYZ(10.0, 10.0, 0.0);
        newTag.TagHeadPosition = headerPnt;

        TaskDialog.Show("Create Independent Tag Method", "End Of Method Dialog");

        return newTag;
    }

    public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
    {
        throw new NotImplementedException();
    }

    #endregion
}

Answer 1

您需要从Execute方法调用CreateIndependentTag方法。 Execute方法是Revit实际调用的方法，目前你的方法只是抛出异常。

此外，CreateIndependentTag方法需要一个墙，以及文档作为参数。该文档可以从ExternalCommandData获得可以通过提示用户选择墙壁或通过采用预先选择的墙壁来获得墙壁。在这种情况下，我们将提示用户选择墙并随后验证选择。

最后，当您对文档进行更改时，需要在Transaction中包装对CreateIndependentTag的调用。

将它们放在一起看起来像这样：

public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
    {
        UIDocument uidoc = commandData.Application.ActiveUIDocument;
        Document doc = uidoc.Document;

        Reference reference;
        try
        {
            reference = uidoc.Selection.PickObject(ObjectType.Element, "Pick a wall");
        }
        catch
        {
            return Result.Cancelled;
        }

        var element = doc.GetElement(reference);

        if (element == null || !(element is Wall wall))
        {
            TaskDialog.Show("Error", "Selected element was not a wall");
            return Result.Failed;
        }

        using (Transaction trans = new Transaction(doc, "Creating tag"))
        {
            trans.Start();

            CreateIndependentTag(doc, wall);

            trans.Commit();
        }
    }

一些注意事项：最好创建一个ISelectionFilter的实现来将用户的选择限制为仅限于墙。我还想首先使用uidoc.Selection.GetElementIds()检查现有的选定对象，以便在提示用户选择墙之前查看是否已选择墙。建筑编码器博客应该有很多与这两点有关的例子。

IndependentTag - 我如何在Revit中调用它？

1 个答案: