Class: QgsRay3D

A representation of a ray in 3D.

A ray is composed of an origin point (the start of the ray) and a direction vector.

Added in version 3.18.

class qgis.core.QgsRay3D

Bases: object

__init__(origin: QVector3D, direction: QVector3D)

Constructor

Note

: the direction is automatically normalized

Parameters:

• origin (QVector3D)

• direction (QVector3D)

__init__(a0: QgsRay3D)

Parameters:

a0 (QgsRay3D)

angleToPoint(self, point: QVector3D) → float

Returns the angle between the ray and the vector from the ray’s origin and the point point

Parameters:

point (QVector3D)

Return type:

float

direction(self) → QVector3D

Returns the direction of the ray see setDirection()

Return type:

QVector3D

directionInversed(self) → QVector3D

Returns a vector with the direction components inversed ( 1/x, 1/y, 1/z) This can be used as an optimization when used in intersection logic. see direction()

Return type:

QVector3D

isInFront(self, point: QVector3D) → bool

Checks whether the point is in front of the ray

Parameters:

point (QVector3D)

Return type:

bool

origin(self) → QVector3D

Returns the origin of the ray

See also

setOrigin()

Return type:

QVector3D

point(self, distance: float) → QVector3D

Returns the point along the ray with the specified distance from the ray’s origin

Parameters:

distance (float)

Return type:

QVector3D

projectedDistance(self, point: QVector3D) → float

Returns the distance of the projection of a point to the ray

Parameters:

point (QVector3D)

Return type:

float

projectedPoint(self, point: QVector3D) → QVector3D

Returns the projection of the point on the ray (which is the closest point of the ray to point)

Parameters:

point (QVector3D)

Return type:

QVector3D

setDirection(self, direction: QVector3D)

Sets the direction of the ray

Note

: the direction is automatically normalized

See also

direction()

Parameters:

direction (QVector3D)

setOrigin(self, origin: QVector3D)

Sets the origin of the ray

See also

origin()

Parameters:

origin (QVector3D)