From 21da567d43078c7277d02fb099d12d1622e50e75 Mon Sep 17 00:00:00 2001
From: Joseph Lenox <lenox.joseph@gmail.com>
Date: Tue, 8 May 2018 23:11:02 -0500
Subject: [PATCH] Pushed a contains() method up to ExPolygonCollection that
 returns if any of its expolygons contain the point.

---
 xs/src/libslic3r/ExPolygonCollection.cpp | 7 +++++++
 xs/src/libslic3r/ExPolygonCollection.hpp | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/xs/src/libslic3r/ExPolygonCollection.cpp b/xs/src/libslic3r/ExPolygonCollection.cpp
index 9de1cb786..ec27505a5 100644
--- a/xs/src/libslic3r/ExPolygonCollection.cpp
+++ b/xs/src/libslic3r/ExPolygonCollection.cpp
@@ -140,5 +140,12 @@ ExPolygonCollection::append(const ExPolygon &expp)
 {
     this->expolygons.push_back(expp);
 }
+bool 
+ExPolygonCollection::contains(const Point &point) const {
+    for (const auto& poly : this->expolygons) {
+        if (poly.contour.contains(point)) return true;
+    }
+    return false;
+}
 
 }
diff --git a/xs/src/libslic3r/ExPolygonCollection.hpp b/xs/src/libslic3r/ExPolygonCollection.hpp
index b11e41ecd..1acd080a2 100644
--- a/xs/src/libslic3r/ExPolygonCollection.hpp
+++ b/xs/src/libslic3r/ExPolygonCollection.hpp
@@ -36,6 +36,11 @@ class ExPolygonCollection
     Polygons holes() const;
     void append(const ExPolygons &expolygons);
     void append(const ExPolygon &expolygons);
+
+    /// Convenience function to iterate through all of the owned 
+    /// ExPolygons and check if at least one contains the point.
+    bool contains(const Point &point) const;
+
 };
 
 inline ExPolygonCollection&