hcdt: 2d Delaunay triangulation
This library performs the constrained or unconstrained 2d Delaunay triangulation.
It uses the C++ library CDT.
For examples, look the README file.
[Skip to Readme]
Downloads
- hcdt-0.1.1.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
| Versions [RSS] | 0.1.0.0, 0.1.0.1, 0.1.0.2, 0.1.0.3, 0.1.0.4, 0.1.0.5, 0.1.1.0, 0.1.1.1 |
|---|---|
| Change log | CHANGELOG.md |
| Dependencies | base (>=4.7 && <5), containers (>=0.6.4.1), hashable (>=1.3.5.0), indexed-traversable (>=0.1.2), system-cxx-std-lib (==1.0), witherable (>=0.4) [details] |
| License | BSD-3-Clause |
| Copyright | 2022 Stéphane Laurent |
| Author | Stéphane Laurent |
| Maintainer | laurent_step@outlook.fr |
| Category | Geometry |
| Home page | https://github.com/stla/hcdt#readme |
| Source repo | head: git clone https://github.com/stla/hcdt |
| Uploaded | by stla at 2023-11-01T17:05:18Z |
| Distributions | NixOS:0.1.1.1 |
| Downloads | 509 total (20 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs available [build log] Last success reported on 2023-11-01 [all 1 reports] |
Readme for hcdt-0.1.1.1
[back to package description]hcdt
Delaunay triangulation
ghci> import Text.Show.Pretty
ghci> import Geometry.HCDT
ghci> vertices = [Vertex 0 0, Vertex 0 1, Vertex 1 1, Vertex 1 0]
ghci> triangulation <- delaunay vertices
ghci> pPrint triangulation
Triangulation
{ _vertices =
fromList
[ ( 0 , Vertex 0.0 0.0 )
, ( 1 , Vertex 0.0 1.0 )
, ( 2 , Vertex 1.0 1.0 )
, ( 3 , Vertex 1.0 0.0 )
]
, _triangles = [ Triangle 1 0 2 , Triangle 2 0 3 ]
, _edges = [ Edge 2 3 , Edge 0 3 , Edge 1 2 , Edge 0 2 , Edge 0 1 ]
}
ghci> pPrint $ borderEdges triangulation
fromList [ Edge 1 0 , Edge 1 2 , Edge 0 3 , Edge 2 3 ]
Constrained Delaunay triangulation
ghci> import Text.Show.Pretty
ghci> import Geometry.HCDT
ghci> vertices = [Vertex 1 1, Vertex 3 1, Vertex 2 2, Vertex 0 0, Vertex 4 0, Vertex 2 5]
ghci> edges = [Edge 0 1, Edge 0 2, Edge 1 2, Edge 3 4, Edge 3 5, Edge 4 5]
ghci> triangulation <- cdelaunay vertices edges
ntriangles: 6
ghci> pPrint triangulation
ConstrainedTriangulation
{ _triangulation =
Triangulation
{ _vertices =
fromList
[ ( 0 , Vertex 1.0 1.0 )
, ( 1 , Vertex 3.0 1.0 )
, ( 2 , Vertex 2.0 2.0 )
, ( 3 , Vertex 0.0 0.0 )
, ( 4 , Vertex 4.0 0.0 )
, ( 5 , Vertex 2.0 5.0 )
]
, _triangles =
[ Triangle 1 0 3
, Triangle 2 1 5
, Triangle 2 5 0
, Triangle 0 5 3
, Triangle 1 4 5
, Triangle 1 3 4
]
, _edges =
[ Edge 3 4
, Edge 1 4
, Edge 3 5
, Edge 0 5
, Edge 2 5
, Edge 0 2
, Edge 1 5
, Edge 1 2
, Edge 1 3
, Edge 4 5
, Edge 0 3
, Edge 0 1
]
}
, _fixedEdges =
[ Edge 0 1 , Edge 0 2 , Edge 4 5 , Edge 1 2 , Edge 3 4 , Edge 3 5 ]
}