Class Triangle

Hierarchy

Triangle

Implements

Shape

Index

Constructors

constructor

Properties

x1
x2
x3
y1
y2
y3

Methods

Constructors

constructor

new Triangle(): Triangle
new Triangle(x1: number, y1: number, x2: number, y2: number, x3: number, y3: number): Triangle

Returns Triangle
Parameters
- x1: number
- y1: number
- x2: number
- y2: number
- x3: number
- y3: number
Returns Triangle

Properties

x1

x1: number

x2

x2: number

x3

x3: number

y1

y1: number

y2

y2: number

y3

y3: number

Methods

angleType

angleType(): AngleType

Returns AngleType

angles

angles(): number[]

Returns three degree angles.

Returns number[]

area

area(): number

Returns number

bounds

bounds(): Rect

Implementation of Shape.bounds

Returns Rect

clone

clone(): this

Implementation of Shape.clone

Returns this

edges

edges(): Segment[]

Returns Segment[]

equals

equals(s: Triangle): boolean

Parameters
- s: Triangle
Returns boolean

gravityPoint

gravityPoint(): ArrayPoint2

Returns the center of gravity. 求三角形的重心

Returns ArrayPoint2

inside

inside(s: ArrayPoint2 | Segment | Rect | Circle): boolean

Parameters
- s: ArrayPoint2 | Segment | Rect | Circle
Returns boolean

intersects

intersects(s: Segment | Line | Rect): boolean

Parameters
- s: Segment | Line | Rect
Returns boolean

isEmpty

isEmpty(): boolean

Implementation of Shape.isEmpty

Returns boolean

onside

onside(p: ArrayPoint2): boolean

Implementation of Shape.onside

Parameters
- p: ArrayPoint2
Returns boolean

p1

p1(): ArrayPoint2
p1(x: number, y: number): this

Returns ArrayPoint2
Parameters
- x: number
- y: number
Returns this

p2

p2(): ArrayPoint2
p2(x: number, y: number): this

Returns ArrayPoint2
Parameters
- x: number
- y: number
Returns this

p3

p3(): ArrayPoint2
p3(x: number, y: number): this

Returns ArrayPoint2
Parameters
- x: number
- y: number
Returns this

perimeter

perimeter(): number

Implementation of Shape.perimeter

Returns number

set

set(t: Triangle): this
set(p1: ArrayPoint2, p2: ArrayPoint2, p3: ArrayPoint2): this

Parameters
- t: Triangle
Returns this
Parameters
- p1: ArrayPoint2
- p2: ArrayPoint2
- p3: ArrayPoint2
Returns this

vertexes

vertexes(): ArrayPoint2[]
vertexes(ps: ArrayPoint2[]): this

Implementation of Shape.vertexes

Returns ArrayPoint2[]
Implementation of Shape.vertexes

Parameters
- ps: ArrayPoint2[]
Returns this

Static toTri

toTri(p1: ArrayPoint2, p2: ArrayPoint2, p3: ArrayPoint2): Triangle

Parameters
- p1: ArrayPoint2
- p2: ArrayPoint2
- p3: ArrayPoint2
Returns Triangle