diff --git a/src/hull.h b/src/hull.h
new file mode 100644
--- /dev/null
+++ b/src/hull.h
@@ -0,0 +1,17 @@
+// Class point needed by 2D convex hull code
+class Point {
+
+public:
+  Point(float xx, float yy) {
+    x=xx;
+    y=yy;
+  }
+  Point(void) {
+    x=0; y=0;
+  }
+  float x,y;
+
+};
+
+int chainHull_2D( Point* P, int n, Point* H );
+