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Merge pull request #4333 from sgiraudot/Point_set-Better_IO_example-GF 

Better IO example in Point_set_3
This commit is contained in:
Laurent Rineau 2019-11-06 17:45:26 +01:00
parent e10ace6bcf f4d2b7540a
commit 36f4dc03c5
1 changed files with 19 additions and 8 deletions
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27
Point_set_3/examples/Point_set_3/point_set_read_ply.cpp
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@ -14,14 +14,15 @@ typedef CGAL::Point_set_3<Point> Point_set;
int main (int argc, char** argv) int main (int argc, char** argv)
{ {
std::ifstream f (argc > 1 ? argv[1] : "data/example.ply"); std::ifstream f (argc > 1 ? argv[1] : "data/example.ply",
std::ios_base::binary); // Mandatory on Windows if input is binary PLY
Point_set point_set; Point_set point_set;
if (!f || !CGAL::read_ply_point_set (f, point_set)) if (!f || !CGAL::read_ply_point_set (f, point_set)) // same as `f >> point_set`
{ {
std::cerr << "Can't read input file " << std::endl; std::cerr << "Can't read input file " << std::endl;
} }
// Shows which properties are defined // Shows which properties are defined
std::vector<std::string> properties = point_set.properties(); std::vector<std::string> properties = point_set.properties();
@ -41,9 +42,19 @@ int main (int argc, char** argv)
std::cerr << " * " << label_prop[*it] << std::endl; std::cerr << " * " << label_prop[*it] << std::endl;
} }
std::ofstream out ("out.ply"); if (argc > 2 && strcmp (argv[2], "-b") == 0) // Optional binary output
out.precision(17); {
CGAL::write_ply_point_set (out, point_set); std::ofstream out ("out.ply",
std::ios_base::binary); // Mandatory on Windows
CGAL::set_binary_mode (out); // Select binary mode (ASCII is default)
out << point_set; // same as `CGAL::write_ply_point_set (out, point_set)`
}
else // ASCII output
{
std::ofstream out ("out.ply");
out.precision(17); // Use sufficient precision in ASCII
CGAL::write_ply_point_set (out, point_set); // same as `out << point_set`
}
return 0; return 0;
} }