Trait PartSource 

pub trait PartSource {
    // Required methods
    fn plan(
        &mut self,
        world: &World,
        boxes: &dyn Fn(Entity) -> Option<[[f64; 3]; 2]>,
    ) -> Result<()>;
    fn next_part(&mut self) -> Result<Option<Part>>;

    // Provided methods
    fn written(&mut self, _part: &World) -> Result<()> { ... }
    fn restart(&mut self) -> Result<()> { ... }
}

How a conversion divides the selected world into parts.

Required Methods

fn plan( &mut self, world: &World, boxes: &dyn Fn(Entity) -> Option<[[f64; 3]; 2]>, ) -> Result<()>

Plan from the selected world, its geometry not loaded yet: boxes gives a prototype’s box (core frame) where the reader knows it.

fn next_part(&mut self) -> Result<Option<Part>>

The next part to load, None when every part is done.

Provided Methods

fn written(&mut self, _part: &World) -> Result<()>

The part just asked for, as the writer got it: for a source that refines its plan from loaded geometry.

fn restart(&mut self) -> Result<()>

Give the same parts again, from the first, as planned (convert_parts_summarized goes over them twice). A source that cannot (its parts depend on what was written) refuses.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl PartSource for PlannedParts

impl PartSource for WholeWorld