Clifford Wolf:

	Fixed STL export



git-svn-id: http://svn.clifford.at/openscad/trunk@192 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 1 insertions, 1 deletions

diff --git a/mainwin.cc b/mainwin.cc
index 3f87541..8a35b8e 100644
--- a/mainwin.cc
+++ b/mainwin.cc
@@ -1018,7 +1018,7 @@ void MainWindow::actionExportSTLorOFF(bool)
 		return;
 	}
 
-	if (root_N->p3.is_simple()) {
+	if (!root_N->p3.is_simple()) {
 		PRINT("Object isn't a valid 2-manifold! Modify your design..");
 		current_win = NULL;
 		return;