Trait AttributeBind

Source

pub trait AttributeBind:
    Debug
    + Sized
    + Any {
    type StorageType: AttributeStorage<Self>;
    type IdentifierType: From<DartIdType> + ToPrimitive + Clone;

    const BIND_POLICY: OrbitPolicy;
}

Expand description

§Generic attribute trait

This trait is used to describe how a given attribute binds to the map, and how it should be stored in memory.

§Example

Using the same context as the for the AttributeUpdate example, we can associate temperature to faces and model a 2D heat-map:

use honeycomb_core::prelude::{FaceIdType, OrbitPolicy};
use honeycomb_core::attributes::{AttributeBind, AttrSparseVec};

#[derive(Clone, Copy, Debug, PartialEq)]
pub struct Temperature {
    pub val: f32
}

impl AttributeBind for Temperature {
    type StorageType = AttrSparseVec<Self>;
    type IdentifierType = FaceIdType;
    const BIND_POLICY: OrbitPolicy = OrbitPolicy::Face;
}