Crate polyhedron_ops

Conway-Hart Polyhedron Operations

This crate implements the Conway Polyhedron Operators and their extensions by George W. Hart and others.

The internal representation uses mesh buffers. These need furter preprocessing before they can be sent to a GPU but are almost fine to send to an offline renderer, as-is.

See the playground example for code on how to do either.

Example

use polyhedron_ops::Polyhedron;
use std::path::Path;

// Conway notation: gapcD
let polyhedron = Polyhedron::dodecahedron()
    .chamfer(None, true)
    .propellor(None, true)
    .ambo(None, true)
    .gyro(None, None, true)
    .finalize();

// Export as ./polyhedron-gapcD.obj
polyhedron.write_to_obj(&Path::new("."), false);

The above code starts from a dodecahedron and iteratively applies four operators.

The resulting shape is shown below.

Cargo Features

[dependencies]
polyhedron-ops = { version = "0.2.1", features = [ "bevy", "nsi", "obj" ] }

• bevy – A polyhedro can be converted into a bevy Mesh. See the bevy example.

  Mesh::from(polyhedron)

• nsi – Add supports for sending data to renderers implementing the ɴsɪ API. The function is called to_nsi().

• obj – Add support for output to Wavefront OBJ via the write_to_obj() function.

Modules

prelude

Re-exports commonly used types and traits.

Structs

Polyhedron

Type Definitions

Edge
Edges
EdgesSlice
Face
FaceSet
Faces
Float
Normal
Normals
Point
Points
Vector
VertexKey