From 2a273fce5faa26030c3de3a0b50404ba33f4c791 Mon Sep 17 00:00:00 2001
From: Zoe <lizhou1021@qq.com>
Date: Thu, 21 Jun 2018 18:03:05 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A4=9A=E6=AE=B5=E7=BA=BF=E8=8E=B7=E5=8F=96?=
 =?UTF-8?q?=E7=82=B9bug?=
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---
 src/DatabaseServices/Polyline.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DatabaseServices/Polyline.ts b/src/DatabaseServices/Polyline.ts
index 86c4576b5..1cceb010d 100644
--- a/src/DatabaseServices/Polyline.ts
+++ b/src/DatabaseServices/Polyline.ts
@@ -267,7 +267,7 @@ export class Polyline extends Curve
      */
     GetPointAtParam(param: number): Vector3
     {
-        if (param === Math.floor(param))
+        if (param === Math.floor(param) && this.ParamOnCurve(param))
             return Vec2DTo3D(this.GetPoint2dAt(FixIndex(param, this.NumberOfVertices))).applyMatrix4(this.OCS);
         let cu: Curve = this.GetCurveAtParam(param);
         if (cu)