Interface Curve2D

_boundingBox

boundingBox

• get boundingBox(): BoundingBox2d

  Compute (and cache) the 2D bounding box of this curve.

  Returns BoundingBox2d

firstParameter

• get firstParameter(): number

  Return the parameter value at the start of the curve (cached after first access).

  Returns number

firstPoint

• get firstPoint(): Point2D

  Return the point at the start of the curve (cached after first access).

  Returns Point2D

geomType

• get geomType(): CurveType

  Return the geometric type of this curve (e.g. LINE, CIRCLE, BSPLINE_CURVE).

  Returns CurveType

lastParameter

• get lastParameter(): number

  Return the parameter value at the end of the curve (cached after first access).

  Returns number

lastPoint

• get lastPoint(): Point2D

  Return the point at the end of the curve (cached after first access).

  Returns Point2D

repr

• get repr(): string

  Return a human-readable representation, e.g. LINE (0,0) - (1,1).

  Returns string

wrapped

• get wrapped(): any

  Returns any

[dispose]

• "[dispose]"(): void

  Returns void

clone

• clone(): Curve2D

  Create an independent deep copy of this curve.

  Returns Curve2D

delete

• delete(): void

  Returns void

distanceFrom

• distanceFrom(element: Point2D | Curve2D): number

  Compute the minimum distance from this curve to a point or another curve.

  Parameters

  • element: Point2D | Curve2D

  Returns number

isOnCurve

• isOnCurve(point: Point2D): boolean

  Test whether a point lies on the curve within a tight tolerance (1e-9).

  Parameters

  • point: Point2D

  Returns boolean

parameter

• parameter(point: Point2D, precision?: number): Result<number>

  Project a point onto the curve and return its parameter value.

  Parameters

  • point: Point2D
  • precision: number = 1e-9

  Returns Result<number>

  Ok(parameter) when the point is on the curve, or an error result otherwise.

reverse

• reverse(): void

  Reverse the orientation of this curve in place.

  Returns void

serialize

• serialize(): string

  Serialize this curve to a string that can be restored with deserializeCurve2D.

  Returns string

splitAt

• splitAt(points: number[] | Point2D[], precision?: number): Curve2D[]

  Split this curve at the given points or parameter values.

  Parameters

  • points: number[] | Point2D[]
  • precision: number = 1e-9

  Returns Curve2D[]

  An array of sub-curves whose union covers the original curve.

tangentAt

• tangentAt(index: number | Point2D): Point2D

  Compute the tangent vector at a parameter position or at the projection of a point.

  Parameters

  • index: number | Point2D

    A normalized parameter (0..1) or a Point2D to project onto the curve.

  Returns Point2D

value

• value(parameter: number): Point2D

  Evaluate the curve at the given parameter, returning the 2D point.

  Parameters

  • parameter: number

  Returns Point2D