Question

我正在创建一个窗口表单，用户将在Autocad中运行命令，它将提示他们选择一个对象（特别是三维多段线）。 3D折线可以具有非常广泛的顶点。我希望每个Vertex都在/创建它自己的行。每行有5列（每个Vertex的属性）。

适合使用的容器是什么？我希望用户能够修改（例如改变高程）每个顶点中的每个属性。与实际删除他们想要的任何顶点一起。

表布局面板？常规小组？这是我“获取”顶点的代码：

        using (AcDb.Transaction oTr = db.TransactionManager.StartTransaction())
        {
            AcDb.ObjectIdCollection ids = new AcDb.ObjectIdCollection();

            AcEd.PromptEntityOptions options = new AcEd.PromptEntityOptions("\nSelect a 3DPolyline:");
            options.SetRejectMessage("That is not select a 3DPolyline" + "\n");
            options.AddAllowedClass(typeof(AcDb.Polyline3d), true);
            AcEd.PromptEntityResult result = ed.GetEntity(options);

            if (result.Status != AcEd.PromptStatus.OK) return;

            AcDb.Polyline3d oEnt = oTr.GetObject(result.ObjectId, AcDb.OpenMode.ForRead) as AcDb.Polyline3d;


            foreach (AcDb.ObjectId oVtId in oEnt)
            {
                AcDb.PolylineVertex3d oVt = oTr.GetObject(oVtId, AcDb.OpenMode.ForRead) as AcDb.PolylineVertex3d;
                //now to populate...something

Answer 1

收集数据时，DataTable会有意义。

using (var trans = db.TransactionManager.StartTransaction())
{
    var options = new PromptEntityOptions("\nSelect a 3DPolyline:");
    options.SetRejectMessage("That is not select a 3DPolyline" + "\n");
    options.AddAllowedClass(typeof(Polyline3d), true);
    var result = ed.GetEntity(options);

    if (result.Status != PromptStatus.OK)
        return;

    var poly = (Polyline3d)trans.GetObject(result.ObjectId, OpenMode.ForRead);
    var vertexClass = RXClass.GetClass(typeof(PolylineVertex3d));

    var vertexTable = new System.Data.DataTable("Vertices");
    vertexTable.Columns.Add("HandleId", typeof(long));
    vertexTable.Columns.Add("PositionX", typeof(double));
    vertexTable.Columns.Add("PositionY", typeof(double));
    vertexTable.Columns.Add("PositionZ", typeof(double));

    foreach (ObjectId vertexId in poly)
    {
        if (!vertexId.ObjectClass.IsDerivedFrom(vertexClass))
            continue;

        var vertex = (PolylineVertex3d)trans.GetObject(vertexId, OpenMode.ForRead);
        vertexTable.Rows.Add(vertex.Handle.Value, vertex.Position.X, vertex.Position.Y, vertex.Position.Z);
    }

    trans.Commit();
}

在表格中获得顶点数据后，您可以非常轻松地将其绑定到可视控件。

适当的“容器”用于数据显示/修改

1 个答案: