cgal/Stream_support
Sebastien Loriot dfc5fb5065
IO: write_PLY() for Epeck (#7874)
## Summary of Changes

As reported in #7868 the function `CGAL::IO::write_PLY()` used in binary
mode does not correctly write the coordinates if the points are from a
kernel with exact constructions.
~~This PR applies `to_double()" to the coordinates.~~

~~After a discussion with @MaelRL we decided that the user is in charge
to pass a `vertex_point_map` as named parameter that does the
conversion. This is straightforward as we offer the
[`Cartesian_converter_property_map`](https://doc.cgal.org/latest/Property_map/structCGAL_1_1Cartesian__converter__property__map.html).~~

Moving back to the previous proposal: hardcode some to_double and
to_float casts such that we meet the requirements of the file format,
whatever the input.

As the problem is the same for the vertex normals we add a named
parameter `vertex_normal_map`.

### Todo
- [x] Fix the generic function `write_polygon_mesh()`. Currently it is
fixed for `Surface_mesh`

## Release Management

* Affected package(s): Stream_support
* Issue(s) solved (if any): fix #7868 and fix
https://github.com/CGAL/cgal/issues/7327
* License and copyright ownership:  unchanged
* upcoming integration, update #9072 and test it
2025-11-13 09:38:55 +01:00
..
benchmark/Stream_support update our CMake version 3.18...3.31 2025-02-04 14:32:37 +01:00
doc/Stream_support IO: write_PLY() for Epeck (#7874) 2025-11-13 09:38:55 +01:00
examples/Stream_support The example can also read in a polygon with 3D points 2025-09-17 15:27:23 +01:00
include/CGAL Update Stream_support/include/CGAL/IO/PLY/PLY_writer.h 2025-10-17 11:20:06 +02:00
package_info/Stream_support Spelling corrections 2024-05-31 19:05:34 +02:00
test/Stream_support Deal with generic version 2025-10-30 11:45:28 +01:00