开发:修复切线捕捉Jig没有销毁

src/Add-on/DrawLine.ts

@@ -100,6 +100,7 @@ export class DrawLine implements Command
 
         while (true)
         {
+            JigUtils.Destroy();
             let line = new Line(ptLast.clone());
             if (pts.length === 1 && firstSnapModeIsTan)
                 JigUtils.Draw(line);//我们用这个来代替橡皮筋
@@ -179,7 +180,6 @@ export class DrawLine implements Command
                     drawLines.push(line);
                     ptLast = line.EndPoint;
                     pts.push(ptLast);
-                    JigUtils.Destroy();
                     continue;
                 }
                 //正常画线