Skip duplicates by default

[DanielVandH]

#215

[DanielVandH]

@Kevin-Mattheus-Moerman
@EdsterG

This should address #215. What do you think of this? e.g. now

julia> points = [(1.0, 1.0), (2.0, 2.0), (5.5, 17.3), (1.0, 1.0), (0.0, 0.5), (1.7, 5.5), (2.0, 2.0), (2.0, 2.0), (25.5, 17.3), (5.5, 17.3)];

julia> triangulate(points)
┌ Warning: There were duplicate points. Only one of each duplicate will be used, and all other duplicates will be skipped. The indices of the duplicates are:
│   (1.0, 1.0) at indices [1, 4]
│   (2.0, 2.0) at indices [2, 7, 8]
│   (5.5, 17.3) at indices [3, 10]
│ To suppress this warning, call `DelaunayTriangulation.toggle_warn_on_dupes!()`.
└ @ DelaunayTriangulation C:\Users\djv23\.julia\dev\DelaunayTriangulation.jl\src\algorithms\triangulation\check_args.jl:122
Delaunay Triangulation.
   Number of vertices: 6
   Number of triangles: 6
   Number of edges: 11
   Has boundary nodes: false
   Has ghost triangles: true
   Curve-bounded: false
   Weighted: false
   Constrained: false

julia> DelaunayTriangulation.toggle_warn_on_dupes!()
false

julia> triangulate(points)
Delaunay Triangulation.
   Number of vertices: 6
   Number of triangles: 6
   Number of edges: 11
   Has boundary nodes: false
   Has ghost triangles: true
   Curve-bounded: false
   Weighted: false
   Constrained: false

julia> DelaunayTriangulation.has_vertex(triangulate(points), 1)
true

julia> DelaunayTriangulation.has_vertex(triangulate(points), 4)
false

[Kevin-Mattheus-Moerman]

Splendid 👏

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.82%. Comparing base (9134c8e) to head (aead02a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #218   +/-   ##
=======================================
  Coverage   94.82%   94.82%           
=======================================
  Files         102      102           
  Lines       10349    10355    +6     
=======================================
+ Hits         9813     9819    +6     
  Misses        536      536           

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