WorldWind Kotlin/earth.worldwind.geom/Line

Line

open class Line

Represents a line in Cartesian coordinates.

Constructors

constructor()

Constructs a line with origin and direction both zero.

constructor(origin: Vec3, direction: Vec3)

Constructs a line with a specified origin and direction.

constructor(line: Line)

Constructs a line with the origin and direction from a specified line.

Types

object Companion

Properties

val direction: Vec3

This line's direction.

val origin: Vec3

This line's origin.

Functions

computeTriangleIntersection

fun computeTriangleIntersection(vertex0: Vec3, vertex1: Vec3, vertex2: Vec3, result: Vec3): Boolean

Computes the Cartesian intersection point of a specified line with a triangle. Taken from Moller and Trumbore.

computeTriangleListIntersection

fun computeTriangleListIntersection(points: List<Vec3>, results: MutableList<Vec3>): Boolean

Computes the Cartesian intersection point(s) of a specified line with a non-indexed list of triangle vertices.

open operator override fun equals(other: Any?): Boolean

open override fun hashCode(): Int

fun pointAt(distance: Double, result: Vec3): Vec3

Computes a Cartesian point a specified distance along this line.

fun set(origin: Vec3, direction: Vec3): Line

Sets this line to a specified origin and direction.

fun setToSegment(pointA: Vec3, pointB: Vec3): Line

Sets this line to the specified segment. This line has its origin at the first endpoint and its direction extending from the first endpoint to the second.

open override fun toString(): String

triStripIntersection

fun triStripIntersection(points: FloatArray, stride: Int, elements: ShortArray, count: Int, result: Vec3): Boolean

Computes the first intersection of a triangle strip with this line. This line is interpreted as a ray; intersection points behind the line's origin are ignored.
The triangle strip is specified by a list of vertex points and a list of elements indicating the triangle strip tessellation of those vertices. The triangle strip elements are interpreted in the same manner as OpenGL, where each index indicates a vertex position rather than an actual index into the points array (e.g. a triangle strip index of 1 indicates the XYZ tuple starting at array index 3).