[geometry] Fix convex_hull alignment error for VS2015 x86. #1048 #1039
[geometry] Fix convex_hull alignment error for VS2015 x86. #1048 #1039

openMVG/openMVG,openMVG/openMVG,openMVG/openMVG,openMVG/openMVG,openMVG/openMVG