From 58bed3e60d445ed5a551eb7f441328781a1488ff Mon Sep 17 00:00:00 2001
From: "salt.wei" <salt.wei@bambulab.com>
Date: Wed, 16 Nov 2022 20:57:41 +0800
Subject: [PATCH] ENH: optimize speed of exporting gcode

Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I70caed8664a647a98a0434dd62d329977e0feaaa
---
 src/libslic3r/ExPolygon.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/libslic3r/ExPolygon.cpp b/src/libslic3r/ExPolygon.cpp
index 2d82729f2..98a9362c4 100644
--- a/src/libslic3r/ExPolygon.cpp
+++ b/src/libslic3r/ExPolygon.cpp
@@ -92,6 +92,12 @@ bool ExPolygon::contains(const Line &line) const
 
 bool ExPolygon::contains(const Polyline &polyline) const
 {
+    BoundingBox bbox1 = get_extents(*this);
+    BoundingBox bbox2 = get_extents(polyline);
+    bbox2.inflated(1);
+    if (!bbox1.overlap(bbox2))
+        return false;
+
     return diff_pl(polyline, *this).empty();
 }