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Added the new 'earth' demo

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Efi Fogel 2023-08-30 16:14:13 +03:00
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@ -20,6 +20,8 @@ Release date: October 2023
`std::variant`. The support for the old macro `CGAL_ARR_POINT_LOCATION_VERSION`
has been removed.
- Introduced a new interactive program that demonstrates 2D arrangements embedded on the sphere called `earth`. The program (i) reads a database of all administrative boundaries of the countries in the world, (ii) displays the globe with all countries and land covered by water (which is land not covered by countries) on a window, and (ii) enables interaction with the user.
#### Envelopes of Surfaces in 3D
- ** Breaking change**: Construct_projected_boundary_2 in `EnvelopeTraits_3` is now using `std::variant` instead of `Object`