LineCurve class

A curve representing a 2d line segment.

Inheritance

• Object
• Curve
• LineCurve

Constructors

LineCurve(Vector v1, Vector v2)

v1 – The start point.

LineCurve.fromJson(Map<String, dynamic> json)

Properties

arcLengthDivisions ↔ int

This value determines the amount of divisions when calculating the cumulative segment lengths of a curve via getLengths. To ensure precision when using methods like getSpacedPoints, it is recommended to increase arcLengthDivisions if the curve is very large. Default is 200.

getter/setter pair, inherited

autoClose ↔ bool

getter/setter pair, inherited

cacheArcLengths ↔ List<double>?

getter/setter pair, inherited

cacheLengths ↔ List<double>?

getter/setter pair, inherited

currentPoint ↔ Vector2

getter/setter pair, inherited

curves ↔ List<Curve>

getter/setter pair, inherited

hashCode → int

The hash code for this object.

no setter, inherited

isCubicBezierCurve ↔ bool

getter/setter pair, inherited

isEllipseCurve ↔ bool

getter/setter pair, inherited

isLineCurve ↔ bool

getter/setter pair, inherited

isLineCurve3 ↔ bool

getter/setter pair, inherited

isQuadraticBezierCurve ↔ bool

getter/setter pair, inherited

isSplineCurve ↔ bool

getter/setter pair, inherited

needsUpdate ↔ bool

getter/setter pair, inherited

points ↔ List<Vector>

getter/setter pair, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

userData ↔ Map<String, dynamic>

getter/setter pair, inherited

v0 ↔ Vector

getter/setter pair, inherited

v1 ↔ Vector

getter/setter pair, inherited

v2 ↔ Vector

getter/setter pair, inherited

Methods

clone() → Curve

Creates a clone of this instance.

inherited

computeFrenetFrames(int segments, bool closed) → FrenetFrames

Generates the Frenet Frames. Requires a curve definition in 3D space. Used in geometries like TubeGeometry or ExtrudeGeometry.

inherited

copy(Curve source) → LineCurve

Copies another name object to this instance.

override

fromJson(Map<String, dynamic> json) → Curve

Copies the data from the given JSON object to this instance.

inherited

getLength() → double

Get total curve arc length

inherited

getLengths(int? divisions) → List<double>

Get list of cumulative segment lengths

inherited

getPoint(double t, [Vector? optionalTarget]) → Vector?

override

getPointAt(double u, [Vector? optionalTarget]) → Vector?

u - A position on the curve according to the arc length. Must be in the range 0, 1 .

override

getPoints([int divisions = 5]) → List<Vector?>

divisions -- number of pieces to divide the curve into. Default is 5.

inherited

getSpacedPoints([int divisions = 5, int offset = 0]) → List<Vector?>

divisions -- number of pieces to divide the curve into. Default is 5.

inherited

getTangent(double t, [Vector? optionalTarget]) → Vector

t - A position on the curve. Must be in the range 0, 1 .

override

getTangentAt(double u, [Vector? optionalTarget]) → Vector

u - A position on the curve according to the arc length. Must be in the range 0, 1 .

inherited

getUtoTmapping(double u, [double? distance]) → double

Given u in the range ( 0 .. 1 ), returns t also in the range ( 0 .. 1 ). u and t can then be used to give you points which are equidistant from the ends of the curve, using getPoint.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

Returns a JSON object representation of this instance.

override

toString() → String

A string representation of this object.

inherited

updateArcLengths() → void

Update the cumulative segment distance cache. The method must be called every time curve parameters are changed. If an updated curve is part of a composed curve like CurvePath, updateArcLengths must be called on the composed curve, too.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited