Fixed a crash when slicing leads to no print.

Fixed a bug in TriangleMesh::bounding_box().
2017-09-12 16:48:44 +02:00
parent b08d6f1969
commit 98408bbed0
4 changed files with 6 additions and 2 deletions
--- a/xs/src/libslic3r/PrintObject.cpp
+++ b/xs/src/libslic3r/PrintObject.cpp
@@ -1253,7 +1253,8 @@ void PrintObject::_slice()
                goto end;
        delete layer;
        this->layers.pop_back();
-        this->layers.back()->upper_layer = nullptr;
+		if (! this->layers.empty())
+			this->layers.back()->upper_layer = nullptr;
    }
 end:
    ;