新增Break命令.

src/Add-on/Break.ts

@@ -0,0 +1,89 @@
+import { Vector3 } from "../../node_modules/@types/three";
+import { app } from "../ApplicationServices/Application";
+import { Circle } from "../DatabaseServices/Circle";
+import { Curve } from "../DatabaseServices/Curve";
+import { Command } from "../Editor/CommandMachine";
+import { PromptStatus } from "../Editor/PromptResult";
+export class Command_Break implements Command
+{
+    async exec()
+    {
+        let cuRes = await app.m_Editor.GetEntity({
+            Msg: "请选择被打断的曲线:"
+        });
+        if (cuRes.Status !== PromptStatus.OK)
+            return;
+
+        let cu = cuRes.Entity as Curve;
+        if (!cu) return;
+
+        let breakPts: Vector3[] = [];
+
+        while (true)
+        {
+            let ptRes = await app.m_Editor.GetPoint({
+                Msg: "请点击被打断的点:"
+                , KeyWordList: breakPts.length === 0 ? [{ key: "D", msg: "等分打断" }, { key: "S", msg: "等分打断" }] : []
+            });
+
+            if (ptRes.Status === PromptStatus.OK)
+            {
+                breakPts.push(ptRes.Value);
+                continue;
+            }
+            //用户输入关键字
+            else if (ptRes.Status === PromptStatus.Keyword)
+            {
+                if (ptRes.StringResult === "D")
+                {
+                    let divRes = await app.m_Editor.GetDistance({ Msg: "请输入等分个数:" });
+                    if (divRes.Status !== PromptStatus.OK)
+                        return;
+
+                    if (divRes.Value === 0)
+                    {
+                        app.m_Editor.Prompt("个数不能为0!");
+                        continue;
+                    }
+                    let lenDiv = cu.Length / divRes.Value;
+                    for (let i = 1; i < divRes.Value; i++)
+                        breakPts.push(cu.GetPointAtDistance(lenDiv * i));
+                }
+                else if (ptRes.StringResult === "S")
+                {
+                    let divRes = await app.m_Editor.GetDistance({ Msg: "请输入等分距离:" });
+                    if (divRes.Status !== PromptStatus.OK)
+                        return;
+
+                    if (divRes.Value === 0)
+                    {
+                        app.m_Editor.Prompt("个数不能为0!");
+                        return;
+                    }
+                    let divCount = cu.Length / divRes.Value;
+                    for (let i = 1; i < divCount; i++)
+                        breakPts.push(cu.GetPointAtDistance(divRes.Value * i));
+                }
+                else
+                {
+                    app.m_Editor.Prompt("未知输入!");
+                    continue;
+                }
+
+                if (cu instanceof Circle)
+                    breakPts.push(cu.StartPoint);
+            }
+
+            break;
+        }
+        if (breakPts.length > 0)
+        {
+            let cus = cu.GetSplitCurvesByPts(breakPts);
+            cu.Erase();
+            cus.forEach(c =>
+            {
+                app.m_Database.ModelSpace.Append(c);
+            });
+        }
+    }
+}

src/Editor/CommandRegister.ts

@@ -66,6 +66,7 @@ import { Command_DimTest } from '../DatabaseServices/Dimension/dimTest';
 import { commandMachine } from './CommandMachine';
 import { Sweep } from '../Add-on/Sweep';
 import { Command_Scale } from '../Add-on/Scale';
+import { Command_Break } from '../Add-on/Break';
 
 export function registerCommand()
 {
@@ -96,7 +97,9 @@ export function registerCommand()
     commandMachine.RegisterCommand("br", new Command_DrawBoard())
 
 
-    commandMachine.RegisterCommand("c0", new DrawCircle0())
+    commandMachine.RegisterCommand("c0", new DrawCircle0());
+    commandMachine.RegisterCommand("break", new Command_Break());
+
 
     commandMachine.RegisterCommand("s", new Stretch())