orx-shapes/org.openrndr.extra.shapes.bezierpatches/BezierPatchBase

BezierPatchBase

open class BezierPatchBase<C : AlgebraicColor<C>, ConvertibleToColorRGBa>(val points: List<List<Vector2>>, val colors: List<List<C>> = emptyList())(source)

Represents a base class for a Bezier patch, a surface defined by control points with optional color assignments.

The Bezier patch is constructed from a 4x4 grid of control points and optionally a 4x4 grid of color values.

Parameters

The type of the color, which must implement the interfaces AlgebraicColor and ConvertibleToColorRGBa.

Throws

IllegalArgumentException

if the points matrix is not 4x4, or if colors is not empty and not 4x4.

Inheritors

BezierPatch

Constructors

BezierPatchBase

constructor(points: List<List<Vector2>>, colors: List<List<C>> = emptyList())

Types

Companion

object Companion

Properties

colors

val colors: List<List<C>>

An optional 4x4 grid of colors associated with the corresponding control points.

contour

val contour: ShapeContour

points

val points: List<List<Vector2>>

A 4x4 grid of control points representing the Bezier patch.

transposed

val transposed: BezierPatchBase<C>

Return a transposed version of the bezier path by transposing the points matrix

Functions

div

operator fun div(scale: Double): BezierPatchBase<C>

gradient

fun gradient(u: Double, v: Double): Vector2

Return a gradient vector on the patch by using its u,v parameterization

horizontal

fun horizontal(v: Double): ShapeContour

minus

operator fun minus(right: BezierPatchBase<C>): BezierPatchBase<C>

plus

operator fun plus(right: BezierPatchBase<C>): BezierPatchBase<C>

position

fun position(u: Double, v: Double): Vector2

Return a point on the patch by using its u,v parameterization

randomPoint

fun randomPoint(random: Random = Random.Default): Vector2

Generate a random point on the path

sub

fun sub(u0: Double, v0: Double, u1: Double, v1: Double): BezierPatchBase<C>

Extract a sub-patch based on uv parameterization

times

operator fun times(scale: Double): BezierPatchBase<C>

transform

fun transform(transform: Matrix44): BezierPatchBase<C>

vertical

fun vertical(u: Double): ShapeContour

withColors

fun <K : AlgebraicColor<K>, ConvertibleToColorRGBa> withColors(colors: List<List<K>>): BezierPatchBase<K>