From 1c5f3647a83b368a4e5ce939cecfc9a165c2608b Mon Sep 17 00:00:00 2001
From: ChenX <maple6@vip.qq.com>
Date: Thu, 17 Oct 2019 16:37:44 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E6=8B=89=E4=BC=B8=E6=9D=BF?=
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---
 src/DatabaseServices/Entity/Extrude.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/DatabaseServices/Entity/Extrude.ts b/src/DatabaseServices/Entity/Extrude.ts
index 13e4f1c85..c8ec9cb8c 100644
--- a/src/DatabaseServices/Entity/Extrude.ts
+++ b/src/DatabaseServices/Entity/Extrude.ts
@@ -609,7 +609,11 @@ export class ExtrudeSolid extends Entity
                     {
                         // if (lvec.z >= this.thickness) return;
                         this.thickness -= lvec.z;
-                        this.Position = this.Position.add(this.Normal.multiplyScalar(lvec.z));
+                        //移动位置而不改变内部拉槽
+                        let v = this.Normal.multiplyScalar(lvec.z);
+                        this._Matrix.elements[12] += v.x;
+                        this._Matrix.elements[13] += v.y;
+                        this._Matrix.elements[14] += v.z;
                     }
                     else
                     {