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use threemf2::io::{ModelBuilder, ObjectType, ThreemfPackage, Unit};
/// This example shows how to build 3MF Model using ModelBuilder.
/// Use this to reduce the boilerplate needed to setup 3MF Models.
///
/// Run with:
/// `cargo run --example builder_example --no-default-features --features io-write`
///
fn main() {
// Create a simple cube model using the builder
let mut builder = ModelBuilder::new(Unit::Millimeter, true);
// Set model properties
builder
.unit(Unit::Millimeter)
.add_metadata("Application", Some("Builder Example"))
.add_metadata(
"Description",
Some("A simple cube created with ModelBuilder"),
);
// Add a cube object
let cube_id = builder.add_mesh_object(|obj| {
let _ = obj
.name("Cube")
.object_type(ObjectType::Model)
.part_number("CUBE-001");
//.mesh(|mesh| {
// Define vertices for a cube
obj.add_vertex(&[0.0, 0.0, 0.0]) // 0: bottom-front-left
.add_vertex(&[10.0, 0.0, 0.0]) // 1: bottom-front-right
.add_vertex(&[10.0, 10.0, 0.0]) // 2: bottom-back-right
.add_vertex(&[0.0, 10.0, 0.0]) // 3: bottom-back-left
.add_vertex(&[0.0, 0.0, 10.0]) // 4: top-front-left
.add_vertex(&[10.0, 0.0, 10.0]) // 5: top-front-right
.add_vertex(&[10.0, 10.0, 10.0]) // 6: top-back-right
.add_vertex(&[0.0, 10.0, 10.0]); // 7: top-back-left
// Define triangles for the cube faces
// Bottom face
obj.add_triangle(&[0, 1, 2]).add_triangle(&[0, 2, 3]);
// Top face
obj.add_triangle(&[4, 5, 6]).add_triangle(&[4, 6, 7]);
// Front face
obj.add_triangle(&[0, 1, 5]).add_triangle(&[0, 5, 4]);
// Back face
obj.add_triangle(&[3, 2, 6]).add_triangle(&[3, 6, 7]);
// Left face
obj.add_triangle(&[0, 3, 7]).add_triangle(&[0, 7, 4]);
// Right face
obj.add_triangle(&[1, 2, 6]).add_triangle(&[1, 6, 5]);
//});
Ok(())
});
// Add the Build to the model
// Note: A root model always needs a build item.
if let Err(err) = builder.add_build(None) {
panic!("{err:?}");
}
match cube_id {
Ok(id) => {
// Add the cube to the build
if let Err(err) = builder.add_build_item(id) {
panic!("{err:?}");
}
}
Err(err) => panic!("{err:?}"),
}
// Build the final model
let model = builder.build();
match model {
Ok(model) => {
println!("Model created successfully!");
println!("Unit: {:?}", model.unit);
println!("Metadata count: {}", model.metadata.len());
println!("Objects count: {}", model.resources.object.len());
println!("Build items count: {}", model.build.item.len());
if let Some(obj) = model.resources.object.first() {
println!("First object name: {:?}", obj.name);
if let Some(mesh) = &obj.mesh {
println!("Vertices: {}", mesh.vertices.vertex.len());
println!("Triangles: {}", mesh.triangles.triangle.len());
}
}
//to create a 3MF Package easily just convert model into a package
let _: ThreemfPackage = model.into();
}
Err(err) => panic!("{err:?}"),
}
}