Lathe revolution with partial angles
In your harnessMesh algorithmMIT
Revolve an (r, y) profile around the Y axis, fully or through a partial angle with flat cut faces, and compute the exact volume of the polygonal solid. Use it for vases, bowls, chess pieces and turned parts.
What it takes and gives
- Entry points
- demo_profile, lathe, revolved_volume, build, main
- Parameters
- profile, segments, angle
- Complexity
- O(profile points * segments)
- Axes
- +Y up, metres
Limits. Profile points need r >= 0 and should go from bottom to top; a profile that crosses the axis or itself gives an invalid solid. Open profiles (not ending on the axis) give open surfaces. Points on the axis collapse to single vertices, so pole faces are triangles.
Details
- Kind
- Mesh algorithm
- Engine
- Python 3.10 or later
- Files
- 10 files, 237.5 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
- Polygonal surface of revolution, Exact volume by Green's theorem: n sin(angle / n) times the profile's first moment
- Tags
- lathe, revolve, surface of revolution, turned parts, vase, modeling
- Identity
library.supply.creative_originals.0dc84a43ffc3121d06f46407.c82b812faaa72318- Version
c82b812faaa72318cfa9045e484649b7c332c5f9780e9e7aee2014ae40f0e939
The version is the SHA-256 of the item your harness downloads; every file in it names its own checksum.
Related files
Cylinder, cone, frustum and pipeIn your harness
Capsule with hemispherical capsIn your harness
Loft through a stack of profilesIn 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.