From 47376aec137f3c7035e921157e0873b5225e1383 Mon Sep 17 00:00:00 2001
From: Kai Ni <nikai97@gmail.com>
Date: Thu, 6 Jan 2011 09:27:04 +0000
Subject: [PATCH] add optional arguments to projectSafe

---
 gtsam/geometry/GeneralCameraT.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gtsam/geometry/GeneralCameraT.h b/gtsam/geometry/GeneralCameraT.h
index 92c93365f..73bf28b32 100644
--- a/gtsam/geometry/GeneralCameraT.h
+++ b/gtsam/geometry/GeneralCameraT.h
@@ -61,8 +61,8 @@ class GeneralCameraT {
 
 		std::pair<Point2,bool> projectSafe(
 				const Point3& P,
-				boost::optional<Matrix&> H1,
-				boost::optional<Matrix&> H2) const {
+				boost::optional<Matrix&> H1 = boost::none,
+				boost::optional<Matrix&> H2 = boost::none) const {
 
 			Point3 cameraPoint = calibrated_.pose().transform_to(P);
 			return std::pair<Point2, bool>(