Clifford Wolf:

	Cleanups and improvements: values and expressions
	Avoid unnaccesary nodes in csg tree



git-svn-id: http://svn.clifford.at/openscad/trunk@11 b57f626f-c46c-0410-a088-ec61d464b74c

1 files changed, 3 insertions, 0 deletions

diff --git a/csg.cc b/csg.cc
index 9ce2bdd..04f6798 100644
--- a/csg.cc
+++ b/csg.cc
@@ -47,6 +47,9 @@ public:
 
 AbstractNode *CsgModule::evaluate(const Context*, const QVector<QString>&, const QVector<Value>&, const QVector<AbstractNode*> child_nodes) const
 {
+	if (child_nodes.size() == 1)
+		return child_nodes[0];
+
 	CsgNode *node = new CsgNode(type);
 	foreach (AbstractNode *v, child_nodes)
 		node->children.append(v);