Extrude a polygon with holes
In your harnessMesh algorithmMIT
Extrude a 2D polygon with any number of holes into a closed solid with optional taper, triangulating the caps with bridged holes. Use it for plates, signs, floor plans, gaskets and logos.
What it takes and gives
- Entry points
- extrude, polygon_area, build, main
- Parameters
- height, taper
- Complexity
- O(n^2) for the cap triangulation, n the total ring size
- Axes
- +Y up, metres
Limits. Rings must be simple and the holes must lie inside the outer ring without touching each other; this is not checked. Taper scales about the origin, so off-centre shapes lean. No bevel or rounded edges.
Details
- Kind
- Mesh algorithm
- Engine
- Python 3.10 or later
- Files
- 10 files, 184.2 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
- Ear clipping with hole bridging, Prismatoid volume with similar end faces
- Tags
- extrusion, polygon with holes, triangulation, 2.5d, plate, taper
- Identity
library.supply.creative_originals.469bc938430fa370157a5576.290624d3286b6720- Version
290624d3286b6720442c79c70e45cc0e710c724e9a62dc70d945af5bca00f0ee
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Related files
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Polygon offset with miter, round or bevel joinsIn your harness
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