alchemist/it.unibo.alchemist.model.geometry/Vector2D

Vector2D

interface Vector2D<P : Vector2D<P>> : Vector<P>

Bidimensional vector with x and y coordinates.

Types

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object Companion

Utility functions for Vector2D.

Properties

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open val asAngle: Double

Computes the angle with atan2(y, x).

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abstract val coordinates: DoubleArray

Coordinates for a Cartesian space. Implementors must guarantee that internal state is not exposed.

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abstract val dimensions: Int

The dimensions of the space this vector belongs to.

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open val magnitude: Double

Finds the magnitude of a vector.

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open val x: Double

x coordinate.

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open val y: Double

y coordinate.

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open val zero: P

Origin.

Functions

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open fun angleBetween(other: P): Double

Computes the angle in radians between two vectors.

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open fun coerceAtLeast(minimumMagnitude: Double): P
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open fun coerceAtMost(maximumMagnitude: Double): P
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open fun coerceIn(minimumMagnitude: Double, maximumMagnitude: Double): P

Performs a coercion at least and at most.

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abstract fun distanceTo(other: P): Double

Computes the distance between two vectors, interpreted as points in an Euclidean space. Throws IllegalArgumentException if vectors have different dimensions.

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open operator fun div(other: Double): P

Division by a Double.

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open override fun dot(other: P): Double

Dot product between bidimensional vectors.

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abstract fun fromCoordinates(coordinates: DoubleArray): P

Builds a new Vector from the provided coordinates.

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abstract operator fun get(dim: Int): Double

The coordinate of this vector in the specified dimension relatively to the basis its space is described with.

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open fun isInRectangle(origin: Vector2D<*>, width: Double, height: Double): Boolean

Checks whether the given point is inside a rectangular region described by an origin point and width and height values (only positive).

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abstract operator fun minus(other: P): P

Support for subtraction. Note: the dimensions must coincide.

open operator fun minus(other: Pair<Double, Double>): P

Allows subtraction with a Pair.

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abstract fun newFrom(x: Double, y: Double): P

Creates a new Vector2D with the same type of the current one with different x and y.

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abstract fun normal(): P

Find the normal of a vector.

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open override fun normalized(): P

Normalizes the vector.

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abstract operator fun plus(other: P): P

Support for sum. Note: the dimensions must coincide.

open operator fun plus(other: Pair<Double, Double>): P

Allows summaction with a Pair.

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open fun resized(newLen: Double): P
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open fun surrounding(radius: Double, count: Int = 12): List<P>

Creates a list of count points equally spaced in the circle of given radius with center in this vector.

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open fun surroundingPointAt(versor: P, distance: Double): P

Computes a point which is at a certain distance and angle (expressed as a versor centered in this node) from this one.

open fun surroundingPointAt(angle: Double, distance: Double): P

Computes a point which is at a certain distance and angle (in radians) from this one.

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abstract operator fun times(other: Double): P

Multiplication by a Double.