cgal/Triangulation_3/demo/Triangulation_3_Geomview_demos
Mael Rouxel-Labbé a0427ec756 Fixed abusing Triangulation_cell_base_3 for Delaunay triangulations
TriangulationCellBase_3 does not request a circumcenter;
DelaunayTriangulationCellBase_3 does.

Delaunay_triangulation_3 only compiled because
Triangulation_cell_base_3 (and Triangulation_ds_cell_base_3 !)
provided circumcenter() operators and DT3 inherited T3's TDS.

- The circumcenter() functions are removed where they shouldn't exist
- DT3 uses DT_cell_base_3 as cell base instead of T_cell_base_3
- Concepts/Classes that supposedly only required TriangulationCellBase_3
  and then built Delaunay triangulations with that (Alpha Shapes, etc.)
  are upgraded to request DelaunayTriangulationCellBase_3 (anyway, it
  wouldn't compile if you actually provided a model of
  TriangulationCellBase_3)
- Fixed various wrong templates in classes/concepts such as
  MeshVertexBase_3 not refining RegularTriangulationVertexBase_3
  and (only in the doc) defaulting to Triangulation_vertex_base_3
- Removed the deprecated class (for 4+ years) T_cell_base_with_circumcenter
2018-04-26 13:21:53 +02:00
..
data
CMakeLists.txt Renew the handle of policies, for CMake-3.10 2017-11-06 14:58:36 +01:00
README
Triangulation_3_color_demo.cpp Fixed abusing Triangulation_cell_base_3 for Delaunay triangulations 2018-04-26 13:21:53 +02:00
Triangulation_3_demo.cpp add SPDX identifier for files under the GPL-3+ license 2017-11-12 10:17:51 +01:00
Triangulation_3_remove_demo.cpp Put CGAL::random_shuffle() in the subnamespace cpp98 2018-04-11 09:32:23 +01:00
Triangulation_3_voronoi_demo.cpp add SPDX identifier for files under the GPL-3+ license 2017-11-12 10:17:51 +01:00

README

The demos use Geomview
[see the chapter Geomview in the cgal manual - support library:
Geomview 1.8.1 is required.  The geomview command must be in the user's $PATH,
otherwise the program will not be able to execute.]

------- demo -------------------------------------------------
Construction of a Delaunay triangulation.

Needs an input file "data/points" containing points (given by x y z)

Draws the triangulation (vertices and edges) in geomview

Locates a point a shows the cell containing it

Draws the triangulation (edges and cells) in geomview,
then the user can move one of the two displayed versions
of the triangulation.
--------------------------------------------------------------

------- demo_color -------------------------------------------
Constructs a Delaunay triangulation with a special Vertex base class
containing a color (white by default).

Sets the color of degree 6 vertices to red.

Displays the triangulation where each vertex has its own color.
--------------------------------------------------------------

------- demo_voronoi ------------------------------------------
Constructs a Delaunay triangulation for points on a grid.

Displays the Voronoi edges of the set of points
--------------------------------------------------------------

------- demo_remove ------------------------------------------
Constructs a Delaunay triangulation for points on a grid.

Then removes all the vertices in random order
--------------------------------------------------------------