From 9ea6474ce41d9a16eca73184c5c93454a20e0b7a Mon Sep 17 00:00:00 2001
From: yvan <luoyifan@qq.com>
Date: Sun, 15 Jun 2025 21:34:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=9C=B0=E6=9D=BF=E4=B8=8D=E9=80=8F=E6=98=8E?=
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---
 src/core/engine/SceneHelp.ts | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/core/engine/SceneHelp.ts b/src/core/engine/SceneHelp.ts
index 07738c0..aaf100b 100644
--- a/src/core/engine/SceneHelp.ts
+++ b/src/core/engine/SceneHelp.ts
@@ -4,7 +4,6 @@ import { LineGeometry } from 'three/examples/jsm/lines/LineGeometry'
 import { LineMaterial } from 'three/examples/jsm/lines/LineMaterial'
 import { Line2 } from 'three/examples/jsm/lines/Line2'
 import type { Object3DLike } from '@/types/ModelTypes.ts'
-import { LineWrap } from '@/core/manager/LineSegmentManager.ts'
 
 /**
  * 场景帮助类
@@ -33,12 +32,14 @@ export default class SceneHelp {
     this.scene = new THREE.Scene()
     this.scene.background = new THREE.Color(gridOption.backgroundColor)
 
+    // 中心十字坐标
     if (gridOption.axesEnabled) {
       this.axesHelper = createAxes(gridOption.axesSize, gridOption.axesColor, gridOption.axesWidth)
       this.axesHelper.position.setY(0) // 确保网格在地面上方
       this.scene.add(this.axesHelper)
     }
 
+    // 1 米级地板
     const gridHelper = new THREE.GridHelper(gridOption.gridSize, gridOption.gridDivisions)
     gridHelper.material.color.setHex(gridOption.gridColor)
     gridHelper.material.opacity = gridOption.gridOpacity
@@ -52,6 +53,7 @@ export default class SceneHelp {
     this.gridHelper = gridHelper
     this.scene.add(this.gridHelper)
 
+    // 10 米级地板
     const gridHelper2 = new THREE.GridHelper(1000, 100)
     gridHelper2.material.color.setHex(gridOption.gridColor)
     gridHelper2.material.transparent = false
@@ -78,6 +80,16 @@ export default class SceneHelp {
     const hemisphereLight = new THREE.HemisphereLight(0xffffff, 0x444444, 1)
     this.scene.add(hemisphereLight)
 
+    // 完全不透明的地板
+    const geometry = new THREE.PlaneGeometry(gridOption.gridSize, gridOption.gridSize)
+    const material = new THREE.MeshBasicMaterial({
+      color: '#ffffff',
+      side: THREE.BackSide
+    })
+    const ground = new THREE.Mesh(geometry, material)
+    ground.rotation.x = -Math.PI / 2
+    this.scene.add(ground)
+
     // const directionalLight = new THREE.DirectionalLight(0xffffff, 1.5)
     // directionalLight.position.set(5, 5, 5).multiplyScalar(3)
     // directionalLight.castShadow = true