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Sebastien Loriot f60daf05e4 Mesh_2: fix degenerate cases (#9290) 
## Summary of Changes

This PR fixes the error reported in issue #781. The main two changes
are:

- in `Refine_edges.h`: allow the refinement point of a constrained edge
to be an existing close encroaching vertex,
- in `Refine_faces.h`: skip tiny bad faces when their bbox are smaller
than a few ulp.

## Release Management

* Affected package(s): Triangulation_2, Mesh_2
* Issue(s) solved (if any): fix #781
* Feature/Small Feature (if any):
* Link to compiled documentation (obligatory for small feature) [*wrong
link name to be changed*](httpssss://wrong_URL_to_be_changed/Manual/Pkg)
* License and copyright ownership: maintenance by GeometryFactory, now
copyright change
2026-02-12 15:01:59 +01:00
..
implicit_functions
update our CMake version 3.18...3.31
2025-02-04 14:32:37 +01:00
include
do not use tie when not needed
2025-01-27 14:02:15 +01:00
javascript
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
Plugins
Mesh_2: fix degenerate cases (#9290)
2026-02-12 15:01:59 +01:00
resources
Fix & enhancements for basic generator plugin:
2026-01-29 11:33:08 +01:00
testing
CGAL Lab
2024-03-26 18:24:51 +01:00
c3t3_type_pch_empty_source.cpp
fix PCH issues (tentative)
2025-04-21 16:06:36 +02:00
C2t3_type.h
CGAL Lab
2024-03-26 18:24:51 +01:00
C3t3_type.h
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
Callback_signaler.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Callback_signaler.h
CGAL Lab
2024-03-26 18:24:51 +01:00
CGAL_double_edit.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
CGAL_double_edit.h
CGAL Lab
2024-03-26 18:24:51 +01:00
CGAL_Lab_CDT_3.cpp
new version of the cdt_3 plugin: can take a colorized surface_mesh as input
2024-07-29 20:10:01 +02:00
CGAL_Lab_detect_sharp_edges.h
CGAL Lab
2024-03-26 18:24:51 +01:00
CGAL_Lab.cpp
typo
2025-03-12 14:40:09 +01:00
CGALlab_compile_all_plugins.cpp
Add a target CGALlab_compile_all_plugins
2024-05-24 16:55:10 +02:00
CGALlab_config.h
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
CGALlab_macros.cmake
fix compatibility issue with qt 6.4
2025-07-01 17:05:23 +02:00
CGALlab_plugin_helper.cpp
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
CGALlab.cpp
simplification
2024-07-29 00:18:13 +02:00
CGALlab.h
Merge 'cgal/master' into Triangulation_3-CDT_3-lrineau
2025-03-21 18:01:23 +01:00
CGALlab.qrc
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
CGALlabConfig.cmake.in
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
Classification.cpp
simplification
2024-07-29 00:18:13 +02:00
CMakeLists.txt
Merge remote-tracking branch 'cgal/6.0.x-branch' into 'cgal/6.1.x-branch'
2025-11-06 10:04:46 +01:00
Color_map.h
Make the bottom and top of the ramp not have same colors
2024-12-10 17:10:11 +01:00
Color_ramp.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Color_ramp.h
CGAL Lab
2024-03-26 18:24:51 +01:00
concurrent_mesher_config.cfg
CGAL Lab
2024-03-26 18:24:51 +01:00
config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
create_sphere.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Details.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
Edge_container.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
File_loader_dialog.h
fix a bug with Wayland: the dialog must be a child of the main widget
2025-03-31 14:43:07 +02:00
FileLoaderDialog.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
Image_type_fwd.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Image_type.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Kernel_type.h
CGAL Lab
2024-03-26 18:24:51 +01:00
LightingDialog.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
Mainpage.md
CGAL Lab
2024-03-26 18:24:51 +01:00
MainWindow_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
MainWindow.cpp
Lab: use results
2025-12-03 11:51:43 +01:00
MainWindow.h
CGAL Lab
2024-03-26 18:24:51 +01:00
MainWindow.ui
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
Mesh_3.cpp
simplification
2024-07-29 00:18:13 +02:00
Messages_interface.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Nef_type_fwd.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Nef_type.h
CGAL Lab
2024-03-26 18:24:51 +01:00
One_ring_iterators.h
CGAL Lab
2024-03-26 18:24:51 +01:00
PMP.cpp
simplification
2024-07-29 00:18:13 +02:00
Point_container.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Point_dialog_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Preferences.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
Primitive_container.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
properties.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_basic_objects_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_c3t3_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_c3t3_item.cpp
use color picker to choose surface color after "reset surface patches"
2025-06-17 10:54:20 +02:00
Scene_c3t3_item.h
reset surface patch colors to have the same patch ID everywhere
2025-06-16 17:06:53 +02:00
Scene_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_find_items.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_group_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_image_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_image_item.cpp
first batch of modifications during my review
2024-10-14 17:42:07 +02:00
Scene_image_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_implicit_function_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_implicit_function_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_implicit_function_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_item_rendering_helper.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_item_with_properties.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_item.cpp
unified face coloring between selection tool and cdt_3 plugin
2025-05-05 16:26:31 +02:00
Scene_lcc_item.cpp
Merge branch 'master' into CGAL_Lab
2024-04-10 18:30:22 +02:00
Scene_lcc_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_nef_polyhedron_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_nef_polyhedron_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_nef_polyhedron_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_plane_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_plane_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_points_with_normal_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_points_with_normal_item.cpp
CGAL: Address Wunused-but-set-variable
2025-08-21 13:13:29 +01:00
Scene_points_with_normal_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polygon_soup_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polygon_soup_item.cpp
Merge remote-tracking branch 'cgal/6.1.x-branch' into 'cgal/main'
2026-01-09 15:53:29 +01:00
Scene_polygon_soup_item.h
degenerate face test is now a predicate and add does self intersect for triangle soup
2026-01-09 14:21:23 +01:00
Scene_polyhedron_item_decorator_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polyhedron_item_decorator.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polyhedron_item_decorator.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polyhedron_selection_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polyhedron_selection_item.cpp
BGL - add CGAL::dijkstra_shortest_path(vs, vt, mesh) (#8724)
2025-04-03 16:07:02 +02:00
Scene_polyhedron_selection_item.h
Make it possible to enter target coordinates in Selection item's "Move Point"
2025-02-26 00:11:08 +01:00
Scene_polyhedron_shortest_path_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polylines_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polylines_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_polylines_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_spheres_item.cpp
revert changes to shader_spheres.vert
2025-08-08 12:01:12 +02:00
Scene_spheres_item.h
revert changes to shader_spheres.vert
2025-08-08 12:01:12 +02:00
Scene_surface_mesh_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_surface_mesh_item.cpp
Use verbose OBJ reader in Lab
2025-11-07 22:02:08 +01:00
Scene_surface_mesh_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_tetrahedra_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_tetrahedra_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_textured_polyhedron_item.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_textured_surface_mesh_item.cpp
Address #8401
2024-08-09 11:32:26 +01:00
Scene_textured_surface_mesh_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_triangulation_3_item_config.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene_triangulation_3_item.cpp
use color picker to choose surface color after "reset surface patches"
2025-06-17 10:54:20 +02:00
Scene_triangulation_3_item.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Scene.cpp
it's > its
2025-03-28 21:18:55 +01:00
Scene.h
Spelling corrections
2024-05-31 19:05:34 +02:00
Selection_visualizer.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Server_ws.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Server_ws.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Show_point_dialog.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
Show_point_dialog.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Show_point_dialog.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
SMesh_type.h
CGAL Lab
2024-03-26 18:24:51 +01:00
SSH_dialog.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
Statistics_on_item_dialog.ui
CGAL Lab
2024-03-26 18:24:51 +01:00
SubViewer.ui
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
T3_type.h
CGAL Lab
2024-03-26 18:24:51 +01:00
TextRenderer.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
texture.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
texture.h
CGAL Lab
2024-03-26 18:24:51 +01:00
Three.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
TODO
CGAL Lab
2024-03-26 18:24:51 +01:00
Travel_isolated_components.h
Fix CC selection + Selection widget UI improvements
2024-05-29 12:28:28 +02:00
Triangle_container.cpp
Merge remote-tracking branch 'cgal/5.6.x-branch'
2024-10-18 18:00:08 +02:00
triangulate_primitive.h
backport warning fixes
2026-01-07 18:16:39 +01:00
Use_ssh.cpp
CGAL Lab
2024-03-26 18:24:51 +01:00
UseCGAL_Lab.cmake
Rename cgallab to CGALlab
2024-04-23 15:09:51 +02:00
Viewer.cpp
bug with Wayland
2025-04-03 16:13:25 +02:00
Viewer.h
issue #8515 Spelling mistakes found checking en-GB to en-US
2024-10-05 11:28:29 +02:00