editor › Globals › Triangle

Class: Triangle

Hierarchy

• Triangle

Index

Constructors

• constructor

Properties

• aabb
• cachedIsDegenerated
• center
• distanceEpsilon
• id
• labels
• mesh
• neighborAB
• neighborBC
• neighborCA
• pointA
• pointB
• pointC
• sideCodes
• triangleId

Methods

• _clearNeighbor
• _normalizePoints
• _pointDistanceToSide
• clearLabel
• getAABB
• getCenter
• getDegeneratedPointOnSide
• getDegeneratedSide
• getId
• getLabels
• getMesh
• getNeighbor
• getNeighborAB
• getNeighborBC
• getNeighborCA
• getNeighborSideCode
• getNeighbors
• getPoint
• getPoints
• getSide
• getSideCode
• getSideOfTouchingPoint
• hasLabel
• hasNeighbor
• isDegenerated
• isNeighborOf
• isPointOnSide
• pointInside
• removeSelf
• replacePoint
• setLabel
• setMesh
• setNeighborByPoints
• setNeighborBySide
• sortOnSide
• toString
• areSidesAdjacent
• getAdjacentSides
• getOppositePoint
• getOppositeSide
• getSharedPoint
• resetIdCounter

Constructors

constructor

+ new Triangle(points: Vector3[], labels: string[] | Set‹string›, suppressDegenerationWarning: boolean): Triangle

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:115

Parameters:

Name	Type	Default
points	Vector3[]	-
labels	string[] | Set‹string›	[]
suppressDegenerationWarning	boolean	false

Returns: Triangle

Properties

Private aabb

• aabb: AABB | null = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:103

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Private cachedIsDegenerated

• cachedIsDegenerated: boolean | null = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:102

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Private center

• center: Vector3 | null = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:104

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Private distanceEpsilon

• distanceEpsilon: number = Config.get("approximateSolutions.polygonClippingDistanceEpsilon")

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:101

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Private Readonly id

• id: number = Triangle.triangleId++

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:95

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Private Readonly labels

• labels: Set‹string›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:106

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Private mesh

• mesh: TriangleMesh2D = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:115

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Private neighborAB

• neighborAB: Triangle = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:110

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Private neighborBC

• neighborBC: Triangle = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:111

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Private neighborCA

• neighborCA: Triangle = null

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:112

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Private pointA

• pointA: Vector3

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:97

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Private pointB

• pointB: Vector3

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:98

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Private pointC

• pointC: Vector3

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:99

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Static sideCodes

▪ sideCodes: string[] = ["AB", "BC", "CA"]

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:22

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Static triangleId

▪ triangleId: number = 0

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:21

Methods

Private _clearNeighbor

▸ _clearNeighbor(neighbor: Triangle): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:468

Only to be called by other triangles when they remove themselves

Parameters:

Name	Type
neighbor	Triangle

Returns: void

---

Private _normalizePoints

▸ _normalizePoints(points: Vector3[]): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:495

Sorts points by x (leftmost first) and then CCW (assuming y-up coordinate system). A will always be the leftmost, if multiple points are left also bottommost, point Modifies the array.

Parameters:

Name	Type
points	Vector3[]

Returns: void

---

Private _pointDistanceToSide

▸ _pointDistanceToSide(point: Vector3, sideCode: SideCode): number

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:484

Parameters:

Name	Type
point	Vector3
sideCode	SideCode

Returns: number

---

clearLabel

▸ clearLabel(label: string): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:149

Removes a given label from a triangle

Parameters:

Name	Type
label	string

Returns: void

---

getAABB

▸ getAABB(): AABB‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:345

Returns: AABB‹›

---

getCenter

▸ getCenter(): Vector3‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:334

Returns: Vector3‹›

the center of gravity, also called centroid. Arithmetic mean of all points

---

getDegeneratedPointOnSide

▸ getDegeneratedPointOnSide(): object

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:451

Returns: object

The first point that is within epsilon distance to a side and thus causes the triangle to be degenerated. null, if no points are degenerated.

• point: PointCode

• side: SideCode

---

getDegeneratedSide

▸ getDegeneratedSide(): SideCode

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:434

Returns: SideCode

SideCode of the first two points that are within epsilon distance to each other and thus cause a degenerated triangle. null, if no points are degenerated.

---

getId

▸ getId(): number

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:135

Returns: number

---

getLabels

▸ getLabels(): Set‹string›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:175

Returns: Set‹string›

---

getMesh

▸ getMesh(): TriangleMesh2D‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:171

Returns: TriangleMesh2D‹›

The mesh the triangle is part of

---

getNeighbor

▸ getNeighbor(sideCode: SideCode): Triangle

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:234

Parameters:

Name	Type
sideCode	SideCode

Returns: Triangle

---

getNeighborAB

▸ getNeighborAB(): Triangle‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:212

Returns: Triangle‹›

---

getNeighborBC

▸ getNeighborBC(): Triangle‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:216

Returns: Triangle‹›

---

getNeighborCA

▸ getNeighborCA(): Triangle‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:220

Returns: Triangle‹›

---

getNeighborSideCode

▸ getNeighborSideCode(neighbor: Triangle): SideCode

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:238

Parameters:

Name	Type
neighbor	Triangle

Returns: SideCode

---

getNeighbors

▸ getNeighbors(): Triangle‹›[]

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:224

Returns: Triangle‹›[]

---

getPoint

▸ getPoint(point: PointCode): Vector3‹›

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:259

Parameters:

Name	Type
point	PointCode

Returns: Vector3‹›

---

getPoints

▸ getPoints(): [Vector3, Vector3, Vector3]

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:255

Returns: [Vector3, Vector3, Vector3]

---

getSide

▸ getSide(side: SideCode): [Vector3, Vector3]

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:273

Parameters:

Name	Type
side	SideCode

Returns: [Vector3, Vector3]

---

getSideCode

▸ getSideCode(points: [Vector3, Vector3]): SideCode

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:286

Parameters:

Name	Type
points	[Vector3, Vector3]

Returns: SideCode

---

getSideOfTouchingPoint

▸ getSideOfTouchingPoint(point: Vector3): SideCode

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:305

Checks if the point is on any side, and if true, returns its side code

Parameters:

Name	Type
point	Vector3

Returns: SideCode

---

hasLabel

▸ hasLabel(label: string): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:157

Checks if the triangle has set the given label

Parameters:

Name	Type	Description
label	string	-

Returns: boolean

---

hasNeighbor

▸ hasNeighbor(sideCode: SideCode): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:230

Parameters:

Name	Type
sideCode	SideCode

Returns: boolean

---

isDegenerated

▸ isDegenerated(distanceEpsilon: number): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:423

Parameters:

Name	Type	Default
distanceEpsilon	number	this.distanceEpsilon

Returns: boolean

---

isNeighborOf

▸ isNeighborOf(triangle: Triangle): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:251

Parameters:

Name	Type
triangle	Triangle

Returns: boolean

---

isPointOnSide

▸ isPointOnSide(point: Vector3, sideCode: SideCode): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:298

Parameters:

Name	Type
point	Vector3
sideCode	SideCode

Returns: boolean

---

pointInside

▸ pointInside(point: Vector3, allowEpsilonDistance: boolean, epsilon: number): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:360

Parameters:

Name	Type	Default	Description
point	Vector3	-	-
allowEpsilonDistance	boolean	-	- If true, points are considered to be inside even if they are < epsilon-length outside/within the triangle If false, points aren't considered to be inside if they are within an epsilon-length distance near the triangle border
epsilon	number	this.distanceEpsilon	-

Returns: boolean

---

removeSelf

▸ removeSelf(): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:368

Clears all neighborhood relationships, effectively removing the triangle from the surrounding data structure

Returns: void

---

replacePoint

▸ replacePoint(oldPoint: Vector3, newPoint: Vector3): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:405

Parameters:

Name	Type
oldPoint	Vector3
newPoint	Vector3

Returns: void

---

setLabel

▸ setLabel(label: string): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:142

Set a label. A triangle can have multiple (string) labels

Parameters:

Name	Type
label	string

Returns: void

---

setMesh

▸ setMesh(mesh: TriangleMesh2D): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:164

Only to be used by the TriangleMesh2D class

Parameters:

Name	Type
mesh	TriangleMesh2D

Returns: void

---

setNeighborByPoints

▸ setNeighborByPoints(points: [Vector3, Vector3], triangle: Triangle): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:179

Parameters:

Name	Type
points	[Vector3, Vector3]
triangle	Triangle

Returns: void

---

setNeighborBySide

▸ setNeighborBySide(sideCode: SideCode, triangle: Triangle): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:194

Parameters:

Name	Type
sideCode	SideCode
triangle	Triangle

Returns: void

---

sortOnSide

▸ sortOnSide(points: Vector3[], sideCode: SideCode): Vector3‹›[]

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:388

Assuming all points are on the specified side, they are sorted semantically (for side "AB": from point A to point B, CCW along the outline direction) Note: The input array is modified

Parameters:

Name	Type
points	Vector3[]
sideCode	SideCode

Returns: Vector3‹›[]

---

toString

▸ toString(): string

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:131

Returns: string

---

Static areSidesAdjacent

▸ areSidesAdjacent(sideCode0: SideCode, sideCode1: SideCode): boolean

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:46

Parameters:

Name	Type
sideCode0	SideCode
sideCode1	SideCode

Returns: boolean

---

Static getAdjacentSides

▸ getAdjacentSides(pointName: PointCode): [SideCode, SideCode]

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:81

Parameters:

Name	Type
pointName	PointCode

Returns: [SideCode, SideCode]

---

Static getOppositePoint

▸ getOppositePoint(sideCode: SideCode): PointCode

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:30

Parameters:

Name	Type
sideCode	SideCode

Returns: PointCode

---

Static getOppositeSide

▸ getOppositeSide(pointName: PointCode): "AB" | "BC" | "CA"

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:66

Parameters:

Name	Type
pointName	PointCode

Returns: "AB" | "BC" | "CA"

---

Static getSharedPoint

▸ getSharedPoint(sideCodeA: SideCode, sideCodeB: SideCode): PointCode

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:25

Parameters:

Name	Type
sideCodeA	SideCode
sideCodeB	SideCode

Returns: PointCode

---

Static resetIdCounter

▸ resetIdCounter(): void

Defined in src/util/polygon/triangulatingClipper/Triangle.ts:61

Returns: void