125 lines
4.7 KiB
C#
125 lines
4.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using Bentley.DgnPlatformNET;
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using Bentley.DgnPlatformNET.Elements;
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using Bentley.GeometryNET;
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using Bentley.MstnPlatformNET;
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namespace Mstn.Toolkit.External
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{
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public class DynamicDrawTool : DgnElementSetTool
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{
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private List<DPoint3d> m_pos;
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private string startPrompt;
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private string updatePrompt;
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private Func<List<DPoint3d>, DPoint3d, Element> creation;
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private int pickTimes;
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private DynamicDrawTool(int toolId, int prompt) : base(toolId, prompt)
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{
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}
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/// <summary>
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/// 交互式工具的入口函数，用于声明工具并进行加载
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/// </summary>
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/// <param name="creation">元素创建的条件及创建元素的对象</param>
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/// <param name="pickTimes">选取次数</param>
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/// <param name="startPrompt"></param>
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/// <param name="updatePrompt"></param>
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public static void Setup(Func<List<DPoint3d>, DPoint3d, Element> creation, int pickTimes, string startPrompt, string updatePrompt)
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{
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DynamicDrawTool primitiveTool = new(0, 0)
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{
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startPrompt = startPrompt,
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updatePrompt = updatePrompt,
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pickTimes = pickTimes,
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creation = creation
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};
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primitiveTool.InstallTool();//加载工具
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}
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protected override void OnPostInstall()//工具激活后执行
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{
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NotificationManager.OutputPrompt(startPrompt);//将提示语输出到提示框中
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m_pos = [];//创建用于储存坐标的列表
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}
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/*
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* 如果我们对通过参数传递进来的元素进行修改，并且返回SUCCESS的话，在_DoOperationForModify
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* 中会用修改后的元素替换掉原来的元素，当然前提是_IsModifyOriginal返回true。否则的话会直接
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* 把修改后的元素重新添加到Dgn文件中。
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*/
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public override StatusInt OnElementModify(Element element)
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{
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return StatusInt.Error;
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}
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protected override bool OnDataButton(DgnButtonEvent ev)//点击确认键（默认为左键）后触发
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{
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NotificationManager.OutputPrompt(updatePrompt);//将提示语输出到提示框中
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if (m_pos.Count() == 0)
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{
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BeginDynamics();//启动动态绘制，只启动一次
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}
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m_pos.Add(ev.Point);//添加捕捉点
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if (pickTimes == m_pos.Count)
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{
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EndDynamics();//关闭动态绘制
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m_pos.Add(ev.Point);//添加捕捉点
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Element element = creation(m_pos, ev.Point);
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element.AddToModel();//将椭圆元素写入模型
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m_pos.Clear();//清空列表
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NotificationManager.OutputPrompt(startPrompt);//将提示语输出到提示框中
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}
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return true;
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}
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/// <summary>
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/// BeginDynamics后动态绘制时触发
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/// </summary>
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/// <param name="ev"></param>
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protected override void OnDynamicFrame(DgnButtonEvent ev)
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{
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//每次增加一个点的时候，生成元素的操作都要更新，根据点数来确定生成元素的类型，不断在基础上叠加
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Element element = creation(m_pos, ev.Point);
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if (null == element)//若未成功生成椭圆元素
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return;//返回
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RedrawElems redrawElems = new()
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{
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DrawMode = DgnDrawMode.TempDraw,//设置绘制模式
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DrawPurpose = DrawPurpose.Dynamics//设置绘制目标
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};//使用元素用于动态绘制
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redrawElems.SetDynamicsViewsFromActiveViewSet(Session.GetActiveViewport());//设置视角
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redrawElems.DoRedraw(element);//使用元素用于动态绘制
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}
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protected override bool OnResetButton(DgnButtonEvent ev)//点击重置键（默认为右键）触发
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{
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if (m_pos.Count() == 0)//判断列表中点个数，若列表中没有坐标点则退出
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{
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ExitTool();//退出工具
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}
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else
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{
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EndDynamics();//停止动态捕捉
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m_pos.Clear();//清空列表中的数据
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NotificationManager.OutputPrompt(startPrompt);//将提示语输出到提示框中
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}
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return true;//返回
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}
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protected override void OnRestartTool()//重启工具时触发
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{
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Setup(creation, pickTimes, startPrompt, updatePrompt);//重新启动交互式工具
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}
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}
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}
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