threemf2 0.2.0

3MF (3D Manufacturing Format) file format support
Documentation 
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use threemf2::core::{
    OptionalResourceId,
    build::{Build, Item},
    mesh::{Mesh, Triangle, Triangles, Vertex, Vertices},
    metadata::Metadata,
    model::{Model, Unit},
    object::{Object, ObjectKind, ObjectType},
    resources::Resources,
    types::OptionalResourceIndex,
};

use std::vec;

/// This is an example showing the core 3MF Types available without any default features.
/// With no default features only the core structs are available from this library.
/// run with
/// `cargo run --example core-no-default-features --no-default-features`
///
fn main() {
    let model = Model {
        unit: Some(Unit::Inch),
        requiredextensions: None,
        recommendedextensions: None,
        metadata: vec![Metadata {
            name: "Test metadata".to_string(),
            preserve: None,
            value: None,
        }],
        resources: Resources {
            object: vec![Object {
                id: 1,
                objecttype: Some(ObjectType::Model),
                thumbnail: None,
                partnumber: None,
                name: None,
                pid: OptionalResourceId::none(),
                pindex: OptionalResourceIndex::none(),
                uuid: None,
                // mesh:
                kind: Some(ObjectKind::Mesh(Mesh {
                    vertices: Vertices {
                        vertex: vec![
                            Vertex::new(0.0, 0.0, 0.0),
                            Vertex::new(-1.0, 0.0, 0.0),
                            Vertex::new(-1.0, 1.0, 0.0),
                        ],
                    },
                    triangles: Triangles {
                        triangle: vec![Triangle {
                            v1: 0,
                            v2: 2,
                            v3: 3,
                            p1: OptionalResourceIndex::none(),
                            p2: OptionalResourceIndex::none(),
                            p3: OptionalResourceIndex::none(),
                            pid: OptionalResourceId::none(),
                        }],
                    },
                    trianglesets: None,
                    // #[cfg(feature = "beam-lattice")]
                    beamlattice: None,
                })),
            }],
            basematerials: vec![],
        },
        build: Build {
            uuid: None,
            item: vec![Item {
                objectid: 1,
                transform: None,
                partnumber: None,
                path: None,
                uuid: None,
            }],
        },
    };

    println!("Number of build items: {}", model.build.item.len());
}