@ue-too/curve / index / Line

クラス: Line

定義: packages/curve/src/line.ts:32

Line segment class with geometric utilities.

Remarks

Represents a straight line segment between two points with operations for:

• Line-line intersection
• Point projection onto line
• Point-in-line testing
• Linear interpolation (lerp)

例

const line = new Line({ x: 0, y: 0 }, { x: 100, y: 100 });

// Get length
console.log('Length:', line.length());

// Interpolate at midpoint
const mid = line.lerp(0.5); // { x: 50, y: 50 }

// Project a point onto the line
const result = line.projectPoint({ x: 50, y: 0 });
if (result.within) {
  console.log('Projection:', result.projectionPoint);
}

コンストラクター

コンストラクター

new Line(startPoint, endPoint): Line

定義: packages/curve/src/line.ts:36

パラメータ

startPoint

Point

endPoint

Point

戻り値

Line

メソッド

getEndPoint()

getEndPoint(): Point

定義: packages/curve/src/line.ts:45

戻り値

Point

---

getStartPoint()

getStartPoint(): Point

定義: packages/curve/src/line.ts:41

戻り値

Point

---

getTranslationRotationToAlginXAxis()

getTranslationRotationToAlginXAxis(): object

定義: packages/curve/src/line.ts:70

戻り値

object

rotationAngle

rotationAngle: number

translation

translation: Point

---

intersectionWithAnotherLine()

intersectionWithAnotherLine(lineToIntersect): object

定義: packages/curve/src/line.ts:49

パラメータ

lineToIntersect

Line

戻り値

object

intersection?

optional intersection: Point

intersects

intersects: boolean

offset?

optional offset: number

---

length()

length(): number

定義: packages/curve/src/line.ts:66

戻り値

number

---

lerp()

lerp(ratio): Point

定義: packages/curve/src/line.ts:103

パラメータ

ratio

number

戻り値

Point

---

pointInLine()

pointInLine(point): boolean

定義: packages/curve/src/line.ts:80

パラメータ

point

Point

戻り値

boolean

---

projectPoint()

projectPoint(point): object

定義: packages/curve/src/line.ts:58

パラメータ

point

Point

戻り値

object

offset?

optional offset: number

projectionPoint?

optional projectionPoint: Point

within

within: boolean