From 55ccc66de2785f12a9ef5c7cf1dc5a2d92152af3 Mon Sep 17 00:00:00 2001
From: Luca <lcarlone@mit.edu>
Date: Sun, 31 Jul 2016 18:43:35 -0400
Subject: [PATCH] added comment

---
 gtsam/geometry/CameraSet.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/geometry/CameraSet.h b/gtsam/geometry/CameraSet.h
index bb149636b..18f311a23 100644
--- a/gtsam/geometry/CameraSet.h
+++ b/gtsam/geometry/CameraSet.h
@@ -57,7 +57,7 @@ protected:
     Vector b(ZDim * m);
     for (size_t i = 0, row = 0; i < m; i++, row += ZDim) {
       Vector bi = traits<Z>::Local(measured[i], predicted[i]);
-      if(ZDim==3 && std::isnan(bi(1))){ // compensate for the case in which the right pixel in a stereoPoint is missing (nan)
+      if(ZDim==3 && std::isnan(bi(1))){ // if it is a stereo point and the right pixel is missing (nan)
         bi(1) = 0;
       }
       b.segment<ZDim>(row) = bi;