C# Класс Box2D.Collision.Manifold

A manifold for two touching convex shapes. Box2D supports multiple types of contact:
  • clip point versus plane with radius
  • point versus point with radius (circles)
The local point usage depends on the manifold type:
  • e_circles: the local center of circleA
  • e_faceA: the center of faceA
  • e_faceB: the center of faceB
Similarly the local normal usage:
  • e_circles: not used
  • e_faceA: the normal on polygonA
  • e_faceB: the normal on polygonB
We store contacts in this way so that position correction can account for movement, which is critical for continuous physics. All contact scenarios must be expressed in one of these types. This structure is stored across time steps, so we keep it small.
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Открытые свойства

Свойство Тип Описание
LocalNormal Box2D.Common.Vec2
LocalPoint Box2D.Common.Vec2
PointCount int
Points Box2D.Collision.ManifoldPoint[]
Type ManifoldType

Открытые методы

Метод Описание
Manifold ( ) : Box2D.Common

creates a manifold with 0 points, with it's points array full of instantiated ManifoldPoints.
Manifold ( Manifold other ) : Box2D.Common

Creates this manifold as a copy of the other
Set ( Manifold cp ) : void

copies this manifold from the given one

Описание методов

Manifold() публичный Метод

creates a manifold with 0 points, with it's points array full of instantiated ManifoldPoints.
public Manifold ( ) : Box2D.Common
Результат Box2D.Common

Manifold() публичный Метод

Creates this manifold as a copy of the other
public Manifold ( Manifold other ) : Box2D.Common
other Manifold
Результат Box2D.Common

Set() публичный Метод

copies this manifold from the given one
public Set ( Manifold cp ) : void
cp Manifold manifold to copy from
Результат void

Описание свойств

LocalNormal публичное свойство

not use for Type::e_points
public Vec2,Box2D.Common LocalNormal
Результат Box2D.Common.Vec2

LocalPoint публичное свойство

usage depends on manifold type
public Vec2,Box2D.Common LocalPoint
Результат Box2D.Common.Vec2

PointCount публичное свойство

The number of manifold points.
public int PointCount
Результат int

Points публичное свойство

The points of contact.
public ManifoldPoint[],Box2D.Collision Points
Результат Box2D.Collision.ManifoldPoint[]

Type публичное свойство

public ManifoldType Type
Результат ManifoldType