diff --git a/mesh.cpp b/mesh.cpp
new file mode 100644
index 0000000..6671dc4
--- /dev/null
+++ b/mesh.cpp
@@ -0,0 +1,14 @@
+#include "solvespace.h"
+
+void SMesh::Clear(void) {
+    l.Clear();
+}
+
+void SMesh::AddTriangle(Vector a, Vector b, Vector c) {
+    STriangle t; ZERO(&t);
+    t.a = a;
+    t.b = b;
+    t.c = c;
+    l.Add(&t);
+}
+