Fillet polygon corners with arcs
In your harnessMesh algorithmMIT
Round the corners of a 2D polygon or polyline with circular arcs tangent to both edges, shrinking the radius where edges are too short. Use it for rounded outlines, toolpaths and soft UI shapes.
What it takes and gives
- Entry points
- fillet, perimeter, build, main
- Parameters
- radius, arc_segments
- Complexity
- O(n * arc_segments)
- Axes
- +Y up, metres; 2D (x, y) maps to (x, 0, -y)
Limits. Each corner is filleted on its own: where a shrunk radius takes half of an edge from both ends, the arcs meet but the radius is no longer the requested one. Self-intersecting input is not repaired. Arcs are polylines with arc_segments chords.
Details
- Kind
- Mesh algorithm
- Engine
- Python 3.10 or later
- Files
- 10 files, 166.7 KB
- Licence
- MIT
- Declared effects
- reads files, runs commands, writes files
- Checked with
- Godot 4.7.2, gl_compatibility, OpenGL 3 driver, Mesa llvmpipe under Xvfb
- Checks
- generator runs system python, generator runs verifier python, gltf strict structure, interpreters agree, example matches generator, godot headless gltf load, godot compatibility render
- Techniques
- Tangent arc construction: distance r / tan(angle / 2) from the corner, Corner bisector for the arc centre
- Tags
- fillet, rounded corners, polygon, 2d, arc, outline
- Identity
library.supply.creative_originals.0923ab36ab038974e6cacee5.1a1fa0d14f90b3c2- Version
1a1fa0d14f90b3c26d98a5039521b039671c0f187070ff5a7a8783339f6574c2
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Related files
Polygon offset with miter, round or bevel joinsIn your harness
Chaikin corner cuttingIn your harness
Rounded box with filleted edgesIn your harness
Something wrong with this item, its rights or its safety? Report it on the support page, or from your harness after a download.