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Weiler atherton clipping method #999

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Weiler atherton clipping method #999

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e39e48f
Add Weiler-Atherton clipping algorithm
Aug 12, 2024
3d0d028
Code style updates
eliascarv Sep 4, 2024
01ce2eb
Break up and refactor clip function and remove non-specific methods
Sep 12, 2024
4dc59ca
Use helper functions for RingVertex
Nov 12, 2024
538e0b3
Refactor intersection inserting loop
Dec 8, 2024
fa26264
Simplify RingVertex point type
Jan 17, 2025
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24 changes: 24 additions & 0 deletions docs/src/algorithms/clipping.md
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,30 @@ other = Box((0,1), (3,7))
# clipped polygon
clipped = clip(poly, other, SutherlandHodgmanClipping())

viz(poly)
viz!(other, color = :black, alpha = 0.2)
viz!(boundary(clipped), color = :red, segmentsize = 3)
Mke.current_figure()
```

## Weiler-Atherton

```@docs
WeilerAthertonClipping
```

```@example clipping
# polygon to clip
outer = Ring((8, 0), (4, 8), (2, 8), (-2, 0), (0, 0), (1, 2), (5, 2), (6, 0))
inner = Ring((4, 4), (2, 4), (3, 6))
poly = PolyArea([outer, inner])

# clipping geometry
other = outer |> Rotate(π) |> Translate(8, 8)

# clipped polygon
clipped = clip(poly, other, WeilerAthertonClipping())

viz(poly)
viz!(other, color = :black, alpha = 0.2)
viz!(boundary(clipped), color = :red, segmentsize = 3)
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1 change: 1 addition & 0 deletions src/Meshes.jl
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Expand Up @@ -440,6 +440,7 @@ export
# clipping
ClippingMethod,
SutherlandHodgmanClipping,
WeilerAthertonClipping,
clip,

# intersections
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1 change: 1 addition & 0 deletions src/clipping.jl
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Expand Up @@ -21,3 +21,4 @@ function clip end
# ----------------

include("clipping/sutherlandhodgman.jl")
include("clipping/weileratherton.jl")
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