Class ConcreteVertex

Concrete implementation of Vertex interface.

Implements

Constructors

constructor

Properties

edge2_ edge_ endPoint_ id_ loc_body_ next_vertex_id

Methods

getCurvature getEdge1 getEdge2 getID highlight isEndPoint locBody locBodyX locBodyY safeGetEdge2 setEdge1 setEdge2

Constructors

constructor

  • new ConcreteVertex(v_body, opt_endPoint?, opt_edge?): ConcreteVertex

  • Parameters

    • v_body: Vector

      location of this Vertex in body coords of the Polygon it belongs to

    • Optional opt_endPoint: boolean

      whether this is the endpoint of an edge, default is true

    • Optional opt_edge: null | Edge

      previous edge (optional)

    Returns ConcreteVertex

Properties

Private edge2_

edge2_: null | Edge = null

the next edge in list of edges -- null for mid-point Vertexes

Private edge_

edge_: null | Edge

the previous edge in list of edges

Private endPoint_

endPoint_: boolean

true if its the endpoint of an edge

Private id_

id_: number = ...

for debugging: give each Vertex a unique id number

Private loc_body_

loc_body_: Vector

location in body coordinates of the RigidBody that this Vertex belongs to

Static next_vertex_id

next_vertex_id: number = 1

for debugging: next vertex id number

Methods

getCurvature

  • getCurvature(): number

  • Returns the radius of curvature of the Edge at the Vertex's location. If the Vertex is between two Edges, returns the radius of curvature with smaller absolute value. Negative curvature means the Edge is concave at that point.

    Returns number

    radius of curvature of Edge at the Vertex, negative means concave

getEdge1

getEdge2

getID

  • getID(): number

  • Returns an identity number unique for each Vertex, for debugging.

    Returns number

    an identity number unique for each Vertex, for debugging.

highlight

isEndPoint

  • isEndPoint(): boolean

  • Returns true if this is a Vertex at the end of an Edge; returns false if this is a 'decorated mid-point' Vertex.

    Returns boolean

    true if this is a Vertex at the end of an Edge; returns false if this is a 'decorated mid-point' Vertex.

locBody

locBodyX

  • locBodyX(): number

  • Returns the horizontal location of this Vertex in body coords of its RigidBody.

    Returns number

    location of this Vertex in body coords of its RigidBody

locBodyY

  • locBodyY(): number

  • Returns the vertical location of this Vertex in body coords of its RigidBody.

    Returns number

    location of this Vertex in body coords of its RigidBody

safeGetEdge2

setEdge1

  • setEdge1(edge): void

  • Sets the 'previous' Edge that this Vertex is connected to.

    Parameters

    • edge: Edge

      the 'previous' Edge that this Vertex is connected to.

    Returns void

    Throws

    if this Vertex was already connected to a previous Edge

setEdge2

  • setEdge2(edge): void

  • Sets the 'next' Edge that this Vertex is connected to.

    Parameters

    • edge: Edge

      the 'next' Edge that this Vertex is connected to

    Returns void

    Throws

    if this Vertex was already connected to a next Edge

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