Trait ncollide3d::query::PointQueryWithLocation [−][src]
pub trait PointQueryWithLocation<N: Real> { type Location; fn project_point_with_location(
&self,
m: &Isometry<N>,
pt: &Point<N>,
solid: bool
) -> (PointProjection<N>, 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_with_location
.
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_point_with_location(
&self,
m: &Isometry<N>,
pt: &Point<N>,
solid: bool
) -> (PointProjection<N>, Self::Location)
&self,
m: &Isometry<N>,
pt: &Point<N>,
solid: bool
) -> (PointProjection<N>, Self::Location)
Projects a point on self
transformed by m
.
Implementors
impl<N: Real> PointQueryWithLocation<N> for Segment<N> type Location = SegmentPointLocation<N>;
impl<N: Real> PointQueryWithLocation<N> for Triangle<N> type Location = TrianglePointLocation<N>;
impl<N: Real> PointQueryWithLocation<N> for Tetrahedron<N> type Location = TetrahedronPointLocation<N>;
impl<N: Real> PointQueryWithLocation<N> for Polyline<N> type Location = (usize, SegmentPointLocation<N>);
impl<N: Real> PointQueryWithLocation<N> for TriMesh<N> type Location = (usize, TrianglePointLocation<N>);