alchemist-euclidean-geometry/it.unibo.alchemist.model.geometry/Line2D

Line2D

interface Line2D<P : Vector2D<P>>(source)

Defines a straight line in a cartesian plane.

Inheritors

Properties

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abstract val isHorizontal: Boolean

Indicates if the line is aligned to the x-axis.

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abstract val isVertical: Boolean

Indicates if the line is aligned to the y-axis.

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abstract val slope: Double

The slope of the line, if isVertical this is undefined (= Double.NaN).

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abstract val xIntercept: Double

The x-coordinate of the x-intercept (= the point where the line intersects the x-axis). If isHorizontal there's no x-intercept and this is Double.NaN.

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abstract val yIntercept: Double

The y-coordinate of the y-intercept (= the point where the line intersects the y-axis). If isVertical there's no y-intercept and this is Double.NaN. The slope-intercept representation (y = mx + b) uses this intercept.

Functions

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abstract fun contains(point: P): Boolean

Checks if the point belongs to this line.

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abstract fun findPoint(x: Double): P

Finds the point belonging to the line with the given x-coordinate. Throws an UnsupportedOperationException if the line isVertical.

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abstract fun intersect(other: Line2D<P>): Intersection2D<P>

Intersects two lines.

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abstract fun intersectCircle(center: P, radius: Double): Intersection2D<P>

Intersects a line and a circle.

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abstract fun isParallelTo(other: Line2D<P>): Boolean

Checks if two lines are parallel.