修复自定义编号不显示，添加双面显示

src/Text.ts

@@ -1,43 +1,59 @@
-import { Font, FontLoader, Mesh, ShapeGeometry, Vector3, Shape } from "three";
+import { Font, FontLoader, Matrix4, Mesh, Shape, ShapeGeometry, Vector3 } from "three";
 import { ColorMaterial } from "./ColorPalette";
 import { MoveMatrix } from "./GeUtils";
+import { XAxis, XAxisN, YAxis, YAxisN, ZAxisN } from "./Utils";
 
 class FontLoaderUtil
 {
-  private static defFont: Font;
-  static Load(): Font
-  {
-    if (!this.defFont)
+    private static defFont: Font;
+    static Load(): Font
     {
-      const f = require("../resources/fonts/helvetiker_regular.typeface.json");
-      let loader = new FontLoader();
-      this.defFont = loader.parse(f);
+        if (!this.defFont)
+        {
+            const f = require("../resources/fonts/helvetiker_regular.typeface.json");
+            let loader = new FontLoader();
+            this.defFont = loader.parse(f);
+        }
+        return this.defFont;
     }
-    return this.defFont;
-  }
 }
 
 export class DbText extends Mesh
 {
-  /**
-   *
-   * 构造一个文本对象,8位点(中心点下面)在0点
-   * @param {string} str 数字字符串
-   * @param {number} height 文本高度
-   * @memberof DbText
-   */
-  constructor(str: string, height: number = 5)
-  {
-    let font = FontLoaderUtil.Load();
+    /**
+     *
+     * 构造一个文本对象,8位点(中心点下面)在0点
+     * @param {string} str 数字字符串
+     * @param {number} height 文本高度
+     * @memberof DbText
+     */
+    constructor(str: string, height: number = 5)
+    {
+        let font = FontLoaderUtil.Load();
 
-    let shapes: Shape[] = font.generateShapes(str, height);
-    let geometry = new ShapeGeometry(shapes);
+        let shapes: Shape[] = font.generateShapes(str, height);
+        let geometry = new ShapeGeometry(shapes);
 
-    geometry.computeBoundingBox();
+        geometry.computeBoundingBox();
 
-    super(geometry, ColorMaterial.GetBasicMaterial(5));
+        super(geometry, ColorMaterial.GetBasicMaterial(5));
 
-    let center = geometry.boundingBox.getCenter(new Vector3());
-    this.applyMatrix4(MoveMatrix(new Vector3(-center.x, 0, 0)));
-  }
+        let center = geometry.boundingBox.getCenter(new Vector3());
+        this.applyMatrix4(MoveMatrix(new Vector3(-center.x, 0, 0)));
+    }
+
+    CreateDoubleMesh(IsFsText: boolean)
+    {
+        let mesh2 = new Mesh(this.geometry, ColorMaterial.GetBasicMaterial(5));
+        //左右视图时应该这样,俯视图是X,-Y,-Z(y+=(xxx)
+        if (IsFsText)
+        {
+            mesh2.applyMatrix4(new Matrix4().makeBasis(XAxis, YAxisN, ZAxisN));
+        }
+        else
+        {
+            mesh2.applyMatrix4(new Matrix4().makeBasis(XAxisN, YAxis, ZAxisN));
+        }
+        this.add(mesh2);
+    }
 }