Data for a point of collision in a Manifold. More...

#include <Manifold.hpp>

Public Attributes
Length2	localPoint
	Local point. More...

ContactFeature	contactFeature
	Contact feature. More...

Momentum	normalImpulse = 0_Ns
	Normal impulse. More...

Momentum	tangentImpulse = 0_Ns
	Tangent impulse. More...

Related Functions
(Note that these are not member functions.)
bool	operator== (const Manifold::Point &lhs, const Manifold::Point &rhs) noexcept
	Determines whether the two given manifold points are equal. More...

bool	operator!= (const Manifold::Point &lhs, const Manifold::Point &rhs) noexcept
	Determines whether the two given manifold points are not equal. More...

Detailed Description

Data for a point of collision in a Manifold.

This is a contact point belonging to a contact manifold. It holds details related to the geometry and dynamics of the contact points.

Note: The impulses are used for internal caching and may not provide reliable contact forces especially for high speed collisions.; This structure is at least 20-bytes large.

Definition at line 125 of file Manifold.hpp.

Friends And Related Function Documentation

◆ operator==()

bool operator==	(	const Manifold::Point &	lhs,
		const Manifold::Point &	rhs
	)

Definition at line 787 of file Manifold.cpp.

◆ operator!=()

bool operator!=	(	const Manifold::Point &	lhs,
		const Manifold::Point &	rhs
	)

Definition at line 808 of file Manifold.cpp.

Member Data Documentation

◆ localPoint

Length2 playrho::d2::Manifold::Point::localPoint

Local point.

Usage depends on manifold type.

Note: For circles type manifolds, this is the local center of circle B.; For face-A type manifolds, this is the local center of "circle" B or a clip point of shape B. It is also the point at which impulse forces should be relatively applied for position resolution.; For face-B type manifolds, this is the local center of "circle" A or a clip point of shape A. It is also the point at which impulse forces should be relatively applied for position resolution.; 8-bytes.

Definition at line 137 of file Manifold.hpp.

◆ contactFeature

ContactFeature playrho::d2::Manifold::Point::contactFeature

Contact feature.

Uniquely identifies a contact point between two shapes - A and B.

Note: This field is 4-bytes.

See also: GetPointStates.

Definition at line 143 of file Manifold.hpp.

◆ normalImpulse

Momentum playrho::d2::Manifold::Point::normalImpulse = 0_Ns

Normal impulse.

This is the non-penetration impulse.

Note: This is only used for velocity constraint resolution.; 4-bytes.

Definition at line 149 of file Manifold.hpp.

◆ tangentImpulse

Momentum playrho::d2::Manifold::Point::tangentImpulse = 0_Ns

Tangent impulse.

This is the friction impulse.

Note: This is only used for velocity constraint resolution.; 4-bytes.

Definition at line 155 of file Manifold.hpp.

The documentation for this struct was generated from the following file:

Collision/Manifold.hpp

Public Attributes

Related Functions