Trait heron::rapier_plugin::rapier2d::parry::query::point::PointQueryWithLocation [−][src]
pub trait PointQueryWithLocation {
type Location;
fn project_local_point_and_get_location(
&self,
pt: &OPoint<f32, Const<2_usize>>,
solid: bool
) -> (PointProjection, Self::Location);
fn project_point_and_get_location(
&self,
m: &Isometry<f32, Unit<Complex<f32>>, 2_usize>,
pt: &OPoint<f32, Const<2_usize>>,
solid: bool
) -> (PointProjection, Self::Location) { ... }
}
Expand description
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
.
Associated Types
Required methods
fn project_local_point_and_get_location(
&self,
pt: &OPoint<f32, Const<2_usize>>,
solid: bool
) -> (PointProjection, Self::Location)
fn project_local_point_and_get_location(
&self,
pt: &OPoint<f32, Const<2_usize>>,
solid: bool
) -> (PointProjection, Self::Location)
Projects a point on self
.