CGAL users discussion list

[Simon Giraudot <>]

Le 29/07/2016 à 17:27, Kelvin_Piroddi a écrit :

Hi 

I am using the read_xyz_points function to read points from a text file. My
code is:

if (!stream ||
      !CGAL::read_xyz_points(stream,
                             std::back_inserter(points),
                            
CGAL::First_of_pair_property_map<PointVectorPair>()))

My input point is:

1.8286 -9.5767 1601.5552 

but output is:

1.8286 -9.5767 1601.56

I am not sure why the number of decimal places for z is now 2. Is there a
way to ensure that the number of decimal places for input and output remains
the same?

Thank you  




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Hello,

How do you get this output? If you are printing it using a standard stream function, notice that the displayed value is rounded with a default precision (which can explain why you don't see the last decimals).
You can set the precision of display manually to make sure there's no loss of information: http://en.cppreference.com/w/cpp/io/ios_base/precision

-- 
Simon Giraudot, PhD
R&D Engineer
GeometryFactory - http://geometryfactory.com/