!3157 开发: ShowDirection命令(显示线段的绘制方向)

src/Add-on/ShowDirection.ts

@@ -0,0 +1,100 @@
+import { Matrix4, Vector3 } from "three";
+import { app } from "../ApplicationServices/Application";
+import { Arc } from "../DatabaseServices/Entity/Arc";
+import { Curve } from "../DatabaseServices/Entity/Curve";
+import { Line } from "../DatabaseServices/Entity/Line";
+import { Polyline } from "../DatabaseServices/Entity/Polyline";
+import { Command } from "../Editor/CommandMachine";
+import { Jig } from "../Editor/Jig";
+import { PromptStatus } from "../Editor/PromptResult";
+import { equaln } from "../Geometry/GeUtils";
+
+/** 显示线段的绘制方向 */
+export class ShowDirection implements Command
+{
+    async exec()
+    {
+        let dirJig = new Jig();
+        let arrows: TArrow[] = [];
+        // 动态绘制箭头
+        const enRes = await app.Editor.GetEntity({
+            Filter: { filterTypes: [Curve] }, Callback: (res) =>
+            {
+                if (res.Status !== PromptStatus.OK) return;
+                let cu = res.Entity as Curve;
+                if (cu.Id)
+                {
+                    dirJig.Destroy();
+                    arrows.length = 0;
+                    const endParam = cu.EndParam;
+                    for (let i = 0; i < endParam; i++)
+                    {
+                        let bul = 0;
+                        if (cu instanceof Arc)
+                            bul = cu.Bul;
+                        else if (cu instanceof Polyline)
+                            bul = cu.GetBulgeAt(i);
+                        const startPoint = cu.GetPointAtParam(i);
+                        const endPoint = cu.GetPointAtParam(i + 1);
+                        const nearEndPoint = cu.GetPointAtParam(i + 0.9);
+                        const arrow = CreateArrow(startPoint, endPoint, { nearEndPoint });
+                        arrows.push(arrow);
+                    }
+                    for (const arrow of arrows)
+                    {
+                        for (const line of arrow)
+                            dirJig.Draw(line);
+                    }
+                }
+            }
+        });
+        // 确定后，将绘制箭头添加到场景
+        if (enRes.Status === PromptStatus.OK)
+        {
+            for (const arrow of arrows)
+            {
+                for (const line of arrow)
+                    app.Database.ModelSpace.Append(line);
+            }
+        }
+        dirJig.End();
+    }
+}
+
+/** 箭头类型 */
+type TArrow = [Line, Line];
+
+/**
+ * 创建箭头
+ * @param {Vector3} startPoint - 起点
+ * @param {Vector3} endPoint - 终点
+ * @param {Object} options - 配置
+ * @property {Vector3} [nearEndPoint] - 次终点
+ * @property {number} [bul] - 弯曲度
+ * @property {number} [arrowColor] - 箭头颜色
+ * @property {number} [lineColor] - 线颜色
+ * @returns
+ */
+const CreateArrow = (startPoint: Vector3, endPoint: Vector3, options: { nearEndPoint?: Vector3, arrowColor?: number, lineColor?: number; } = {}) =>
+{
+    const { nearEndPoint = startPoint, arrowColor = 2 } = options;
+    const len = endPoint.clone().sub(nearEndPoint);
+    const GetRotateMatrix = (angle: number) =>
+    {
+        if (equaln(startPoint.x, 0))
+            return new Matrix4().makeRotationX(angle);
+        else if (equaln(startPoint.y, 0))
+            return new Matrix4().makeRotationY(angle);
+        else
+            return new Matrix4().makeRotationZ(angle);
+    };
+    const roMatL = GetRotateMatrix(Math.PI / 4);
+    const roMatR = GetRotateMatrix(-Math.PI / 4);
+    const biasLPoint = endPoint.clone().sub(len.clone().applyMatrix4(roMatL));
+    const biasRPoint = endPoint.clone().sub(len.clone().applyMatrix4(roMatR));
+    const lineL = new Line(endPoint, biasLPoint);
+    lineL.ColorIndex = arrowColor;
+    const lineR = new Line(endPoint, biasRPoint);
+    lineR.ColorIndex = arrowColor;
+    return [lineL, lineR] as TArrow;
+};

src/Common/CommandNames.ts

@@ -34,6 +34,7 @@ export enum CommandNames
     MoveAxis = "MOVEAXIS",
     Rotate = "ROTATE", //旋转
     RotateRefer = "ROTATEREFER", //旋转(参考)
+    ShowDirection = "SHOWDIRECTION", //显示线段方向
     Revolve = "REVOLVE", //车削实体
     Sphere = "SPHERE",
     SpliteTemplate = "SPLITETEMPLATE",

src/Editor/CommandRegister.ts

@@ -240,6 +240,7 @@ import { ForceOpendirOrNameChange } from "../Add-on/ForceOpenDirChange";
 import { Command_HighlightNode, Command_HighlightNodeAndChilds } from "../Add-on/HighlightNode";
 import { Command_Show2DPathLine } from "../Add-on/Show2DPathLine/Show2DPathLine";
 import { Command_Show2DPathObject } from "../Add-on/Show2DPathLine/Show2DPathObject";
+import { ShowDirection } from "../Add-on/ShowDirection";
 import { TestFb } from "../Add-on/TestFb";
 import { Command_TestPointPickParse } from "../Add-on/TestPointPickParse";
 import { Text2Curve } from "../Add-on/Text2Curve";
@@ -478,6 +479,8 @@ export function registerCommand()
 
     commandMachine.RegisterCommand("ent", new Entsel());
 
+    commandMachine.RegisterCommand(CommandNames.ShowDirection, new ShowDirection());
+
     if (IsTest())
         commandMachine.RegisterCommand("sky", new DrawSky());
 

src/UI/Components/CommandPanel/CommandList.ts

@@ -3459,6 +3459,15 @@ export const CommandList: ICommand[] = [
         chName: "高亮本节点及子节点",
         chDes: "亮显选中实体当前节点的实体和子节点",
     },
+    {
+        typeId: "hidedisplay",
+        link: `#`,
+        defaultCustom: CommandNames.ShowDirection,
+        command: CommandNames.ShowDirection,
+        type: "隐藏显示",
+        chName: "显示线段方向",
+        chDes: "显示直线/圆弧/多段线的绘制方向",
+    },
 
     // 内置命令
     {