Trait heron::rapier_plugin::rapier2d::parry::query::point::PointQueryWithLocation

pub trait PointQueryWithLocation {
    type Location;

    fn project_local_point_and_get_location(
        &self,
        pt: &OPoint<f32, Const<2>>,
        solid: bool
    ) -> (PointProjection, Self::Location);

    fn project_point_and_get_location(
        &self,
        m: &Isometry<f32, Unit<Complex<f32>>, 2>,
        pt: &OPoint<f32, Const<2>>,
        solid: bool
    ) -> (PointProjection, Self::Location) { ... }
}

Returns shape-specific info in addition to generic projection information

One requirement for the PointQuery trait is to be usable as a trait object. Unfortunately this precludes us from adding an associated type to it that might allow us to return shape-specific information in addition to the general information provided in PointProjection. This is where PointQueryWithLocation comes in. It forgoes the ability to be used as a trait object in exchange for being able to provide shape-specific projection information.

Any shapes that implement PointQuery but are able to provide extra information, can implement PointQueryWithLocation in addition and have their PointQuery::project_point implementation just call out to PointQueryWithLocation::project_point_and_get_location.

Required Associated Types

type Location

Additional shape-specific projection information

In addition to the generic projection information returned in PointProjection, implementations might provide shape-specific projection info. The type of this shape-specific information is defined by this associated type.

Required Methods

fn project_local_point_and_get_location(
    &self,
    pt: &OPoint<f32, Const<2>>,
    solid: bool
) -> (PointProjection, Self::Location)

Projects a point on self.

Provided Methods

fn project_point_and_get_location(
    &self,
    m: &Isometry<f32, Unit<Complex<f32>>, 2>,
    pt: &OPoint<f32, Const<2>>,
    solid: bool
) -> (PointProjection, Self::Location)

Projects a point on self transformed by m.

Implementors

impl PointQueryWithLocation for Polyline

type Location = (u32, SegmentPointLocation)

impl PointQueryWithLocation for Segment

type Location = SegmentPointLocation

impl PointQueryWithLocation for TriMesh

type Location = (u32, TrianglePointLocation)

impl PointQueryWithLocation for Triangle

type Location = TrianglePointLocation

impl<Heights, Status> PointQueryWithLocation for GenericHeightField<Heights, Status>where
    Heights: HeightFieldStorage<Item = f32>,
    Status: HeightFieldStorage<Item = bool>,

type Location = (usize, TrianglePointLocation)