CGAL users discussion list

[Ben Supnik <>]

Hi Y'all,

Does anyone have any advice on how to safely persist arrangements?  My 
arrangement is based on an exact number type and the combination of a 
rather ugly pile of curves...it is very possible that some of the 
intersections required to form the topologically correct map cannot be 
represented with raw 64-bit floats.

How can I write an arrangement out to disk such that I can both read it 
back without redoing the intersection calculations and be sure that it 
is topologically correct?

thanks
Ben


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