用C#写一个tekla二次开发批量合并梁的插件

好的，下面是一个使用 C# 语言编写的 Tekla 二次开发批量合并梁的插件的代码示例：

using System;
using System.Collections.Generic;
using Tekla.Structures.Model;
using Tekla.Structures.Geometry3d;

public class MergeBeamsPlugin
{
    public static void Main(string[] args)
    {
        Model model = new Model();

        if (model.GetConnectionStatus())
        {
            // 获取用户选择的所有梁对象
            List<ModelObject> selectedObjects = new List<ModelObject>();
            ModelObjectEnumerator modelObjectEnum = model.GetModelObjectSelector().GetSelectedObjects();
            while (modelObjectEnum.MoveNext())
            {
                if (modelObjectEnum.Current is Beam)
                {
                    selectedObjects.Add(modelObjectEnum.Current);
                }
            }

            if (selectedObjects.Count > 1)
            {
                // 对每一个梁对象进行合并操作
                Beam firstBeam = selectedObjects[0] as Beam;
                Point startPoint = firstBeam.StartPoint;
                Point endPoint = firstBeam.EndPoint;

                for (int i = 1; i < selectedObjects.Count; i++)
                {
                    Beam beam = selectedObjects[i] as Beam;
                    startPoint = (startPoint.DistanceTo(beam.StartPoint) < startPoint.DistanceTo(beam.EndPoint)) ? startPoint : beam.EndPoint;
                    endPoint = (endPoint.DistanceTo(beam.StartPoint) < endPoint.DistanceTo(beam.EndPoint)) ? endPoint : beam.EndPoint;
                }

                Vector direction = endPoint - startPoint;

                Beam mergedBeam = new Beam(startPoint, direction, firstBeam.Profile);
                mergedBeam.Name = "Merged Beam";

                // 删除原有的梁对象
                foreach (ModelObject obj in selectedObjects)
                {
                    obj.Delete();
                }

                // 将新的梁对象添加到 Tekla 模型中
                mergedBeam.Insert();
                model.CommitChanges();
            }
            else
            {
                Console.WriteLine("请选择至少两个梁对象！");
            }
        }
        else
        {
            Console.WriteLine("无法连接到 Tekla 结构软件！");
        }
    }
}

在这个示例代码中，我们使用了 Tekla API 中的 Beam、Point、Vector、ModelObjectEnumerator 等类来实现梁的选择、合并、删除和添加等操作。具体的实现细节可以根据实际需求进行调整。