ccw_face_normal.rs.html -- source

Files

ncollide2d

bounding_volume

interpolation

mod.rs rigid_motion.rs

partitioning

bvh.rs bvt.rs dbvt.rs mod.rs visitor.rs

pipeline

broad_phase

broad_phase.rs broad_phase_pair_filter.rs dbvt_broad_phase.rs mod.rs

glue

mod.rs query.rs setup.rs update.rs

narrow_phase

object

collision_groups.rs collision_object.rs collision_object_set.rs mod.rs query_type.rs

mod.rs world.rs

procedural

bezier.rs cuboid.rs mod.rs polyline.rs sphere.rs utils.rs

query

algorithms

cso_point.rs epa2.rs gjk.rs mod.rs special_support_maps.rs voronoi_simplex2.rs

closest_points

closest_points.rs closest_points_ball_ball.rs closest_points_composite_shape_shape.rs closest_points_line_line.rs closest_points_plane_support_map.rs closest_points_segment_segment.rs closest_points_shape_shape.rs closest_points_support_map_support_map.rs mod.rs

contact

contact.rs contact_ball_ball.rs contact_composite_shape_shape.rs contact_kinematic.rs contact_manifold.rs contact_plane_support_map.rs contact_preprocessor.rs contact_shape_shape.rs contact_support_map_support_map.rs mod.rs

distance

distance.rs distance_ball_ball.rs distance_composite_shape_shape.rs distance_plane_support_map.rs distance_support_map_support_map.rs mod.rs

nonlinear_time_of_impact

mod.rs nonlinear_time_of_impact.rs nonlinear_time_of_impact_ball_ball.rs nonlinear_time_of_impact_composite_shape_shape.rs nonlinear_time_of_impact_support_map_support_map.rs

point

mod.rs point_aabb.rs point_ball.rs point_bounding_sphere.rs point_capsule.rs point_compound.rs point_cuboid.rs point_heightfield.rs point_plane.rs point_polyline.rs point_query.rs point_segment.rs point_shape.rs point_support_map.rs point_triangle.rs

proximity

mod.rs proximity.rs proximity_ball_ball.rs proximity_composite_shape_shape.rs proximity_plane_support_map.rs proximity_shape_shape.rs proximity_support_map_support_map.rs

ray

mod.rs ray.rs ray_aabb.rs ray_ball.rs ray_bounding_sphere.rs ray_compound.rs ray_cuboid.rs ray_heightfield.rs ray_plane.rs ray_polyline.rs ray_shape.rs ray_support_map.rs

time_of_impact

mod.rs time_of_impact.rs time_of_impact_ball_ball.rs time_of_impact_composite_shape_shape.rs time_of_impact_plane_support_map.rs time_of_impact_support_map_support_map.rs

visitors

aabb_sets_interferences_collector.rs bounding_volume_interferences_collector.rs composite_closest_point_visitor.rs composite_point_containment_test.rs mod.rs point_interferences_collector.rs ray_interferences_collector.rs ray_intersection_cost_fn_visitor.rs

shape

ball.rs capsule.rs composite_shape.rs compound.rs convex_polygon.rs convex_polygonal_feature2.rs convex_polyhedron.rs cuboid.rs deformable_shape.rs heightfield2.rs mod.rs plane.rs polyline.rs segment.rs shape.rs shape_impl.rs support_map.rs triangle.rs

transformation

to_polyline

ball_to_polyline.rs capsule_to_polyline.rs cuboid_to_polyline.rs mod.rs segment_to_polyline.rs to_polyline.rs triangle_to_polyline.rs

convex_hull2.rs convex_hull_utils.rs mod.rs

utils

as_bytes.rs ccw_face_normal.rs center.rs deterministic_state.rs hashable_partial_eq.rs isometry_ops.rs median.rs mod.rs point_cloud_support_point.rs point_in_poly2d.rs ref_with_cost.rs sort.rs sorted_pair.rs triangle.rs

ncollide3d

bounding_volume

interpolation

mod.rs rigid_motion.rs

partitioning

bvh.rs bvt.rs dbvt.rs mod.rs visitor.rs

pipeline

broad_phase

broad_phase.rs broad_phase_pair_filter.rs dbvt_broad_phase.rs mod.rs

glue

mod.rs query.rs setup.rs update.rs

narrow_phase

object

collision_groups.rs collision_object.rs collision_object_set.rs mod.rs query_type.rs

mod.rs world.rs

procedural

path

arrowhead_cap.rs mod.rs no_cap.rs path.rs polyline_path.rs polyline_pattern.rs

bezier.rs capsule.rs cone.rs cuboid.rs cylinder.rs mod.rs quad.rs sphere.rs trimesh.rs utils.rs

query

algorithms

cso_point.rs epa3.rs gjk.rs mod.rs special_support_maps.rs voronoi_simplex3.rs

closest_points

closest_points.rs closest_points_ball_ball.rs closest_points_composite_shape_shape.rs closest_points_line_line.rs closest_points_plane_support_map.rs closest_points_segment_segment.rs closest_points_shape_shape.rs closest_points_support_map_support_map.rs mod.rs

contact

contact.rs contact_ball_ball.rs contact_composite_shape_shape.rs contact_kinematic.rs contact_manifold.rs contact_plane_support_map.rs contact_preprocessor.rs contact_shape_shape.rs contact_support_map_support_map.rs mod.rs

distance

distance.rs distance_ball_ball.rs distance_composite_shape_shape.rs distance_plane_support_map.rs distance_support_map_support_map.rs mod.rs

nonlinear_time_of_impact

mod.rs nonlinear_time_of_impact.rs nonlinear_time_of_impact_ball_ball.rs nonlinear_time_of_impact_composite_shape_shape.rs nonlinear_time_of_impact_support_map_support_map.rs

point

mod.rs point_aabb.rs point_ball.rs point_bounding_sphere.rs point_capsule.rs point_compound.rs point_cuboid.rs point_heightfield.rs point_plane.rs point_polyline.rs point_query.rs point_segment.rs point_shape.rs point_support_map.rs point_tetrahedron.rs point_triangle.rs point_trimesh.rs

proximity

mod.rs proximity.rs proximity_ball_ball.rs proximity_composite_shape_shape.rs proximity_plane_support_map.rs proximity_shape_shape.rs proximity_support_map_support_map.rs

ray

mod.rs ray.rs ray_aabb.rs ray_ball.rs ray_bounding_sphere.rs ray_compound.rs ray_cuboid.rs ray_heightfield.rs ray_plane.rs ray_polyline.rs ray_shape.rs ray_support_map.rs ray_triangle.rs ray_trimesh.rs

time_of_impact

mod.rs time_of_impact.rs time_of_impact_ball_ball.rs time_of_impact_composite_shape_shape.rs time_of_impact_plane_support_map.rs time_of_impact_support_map_support_map.rs

visitors

aabb_sets_interferences_collector.rs bounding_volume_interferences_collector.rs composite_closest_point_visitor.rs composite_point_containment_test.rs mod.rs point_interferences_collector.rs ray_interferences_collector.rs ray_intersection_cost_fn_visitor.rs

shape

transformation

to_trimesh

ball_to_trimesh.rs capsule_to_trimesh.rs cone_to_trimesh.rs cuboid_to_trimesh.rs cylinder_to_trimesh.rs heightfield_to_trimesh.rs mod.rs to_trimesh.rs triangle_to_trimesh.rs

convex_hull2.rs convex_hull3.rs convex_hull_utils.rs hacd.rs mod.rs

utils

as_bytes.rs ccw_face_normal.rs center.rs cleanup.rs deterministic_state.rs hashable_partial_eq.rs isometry_ops.rs median.rs mod.rs point_cloud_support_point.rs point_in_poly2d.rs ref_with_cost.rs sort.rs sorted_pair.rs tetrahedron.rs triangle.rs

use crate::math::{Point, Vector};
use na::{RealField, Unit};

/// Computes the direction pointing toward the right-hand-side of an oriented segment.
///
/// Returns `None` if the segment is degenerate.
#[inline]
#[cfg(feature = "dim2")]
pub fn ccw_face_normal<N: RealField>(pts: [&Point<N>; 2]) -> Option<Unit<Vector<N>>> {
    let ab = pts[1] - pts[0];
    let res = Vector::new(ab[1], -ab[0]);

    Unit::try_new(res, N::default_epsilon())
}

/// Computes the normal of a counter-clock-wise triangle.
///
/// Returns `None` if the triangle is degenerate.
#[inline]
#[cfg(feature = "dim3")]
pub fn ccw_face_normal<N: RealField>(pts: [&Point<N>; 3]) -> Option<Unit<Vector<N>>> {
    let ab = pts[1] - pts[0];
    let ac = pts[2] - pts[0];
    let res = ab.cross(&ac);

    Unit::try_new(res, N::default_epsilon())
}

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