Struct Layers

pub struct Layers {
    pub objects: Layer<Objects>,
    pub geometry: Layer<Geometry>,
    pub validation: Layer<Validation>,
    pub presentation: Layer<Presentation>,
}

Loosely coupled layers, that together define shapes

Shapes are not a monolithic thing in Fornjot, but instead are defined by several, loosely coupled layers. These layers are owned by this struct.

Implementation Note

It is totally conceivable that one day, this system of layers is extensible and more layers can be defined by third-party code. The foundation for that, the loose coupling and inter-layer communication via events, is already there, conceptually.

For now, there is no need for this, and all layers are just hardcoded here. That can be changed, once necessary.

Fields

objects: Layer<Objects>

The objects layer

Manages the stores of topological and geometric objects that make up shapes.

geometry: Layer<Geometry>

The geometry layer

Manages geometric information that applies to topological objects.

validation: Layer<Validation>

The validation layer

Monitors objects and validates them, as they are inserted.

presentation: Layer<Presentation>

The presentation layer

Stores data concerning the presentation of objects.

Implementations

impl Layers

pub fn new() -> Self

Construct an instance of Layers

pub fn with_validation_config(config: ValidationConfig) -> Self

Construct an instance of Layers, using the provided configuration

Trait Implementations

impl Default for Layers

fn default() -> Self

Returns the “default value” for a type.