Class: QgsVector3D

A 3D vector (similar to QVector3D) with the difference that it uses double precision instead of single precision floating point numbers.

Methods

distance

Returns the distance with the other QgsVector3D

isNull

Returns True if all three coordinates are zero

length

Returns the length of the vector

normalize

Normalizes the current vector in place.

set

Sets vector coordinates

setX

Sets X coordinate

setY

Sets Y coordinate

setZ

Sets Z coordinate

toString

Returns a string representation of the 3D vector.

toVector3D

Converts the current object to QVector3D

x

Returns X coordinate

y

Returns Y coordinate

z

Returns Z coordinate

Static Methods

crossProduct

Returns the cross product of two vectors

dotProduct

Returns the dot product of two vectors

perpendicularPoint

Returns the perpendicular point of vector vp from [v1 - v2]
class qgis.core.QgsVector3D[source]

Bases: object

__init__()

Constructs a null vector

__init__(x: float, y: float, z: float)

Constructs a vector from given coordinates

Parameters:

  • x (float)

  • y (float)

  • z (float)

__init__(v: QVector3D)

Constructs a vector from single-precision QVector3D

Parameters:

v (QVector3D)

__init__(a0: QgsVector3D)
Parameters:

a0 (QgsVector3D)

static crossProduct(v1: QgsVector3D, v2: QgsVector3D) → QgsVector3D[source]

Returns the cross product of two vectors

Parameters:
Return type:

QgsVector3D

distance(self, other: QgsVector3D) → float[source]

Returns the distance with the other QgsVector3D

Parameters:

other (QgsVector3D)

Return type:

float

static dotProduct(v1: QgsVector3D, v2: QgsVector3D) → float[source]

Returns the dot product of two vectors

Parameters:
Return type:

float

isNull(self) → bool[source]

Returns True if all three coordinates are zero

Return type:

bool

length(self) → float[source]

Returns the length of the vector

Return type:

float

normalize(self)[source]

Normalizes the current vector in place.

static perpendicularPoint(v1: QgsVector3D, v2: QgsVector3D, vp: QgsVector3D) → QgsVector3D[source]

Returns the perpendicular point of vector vp from [v1 - v2]

Parameters:
Return type:

QgsVector3D

set(self, x: float, y: float, z: float)[source]

Sets vector coordinates

Parameters:

  • x (float)

  • y (float)

  • z (float)

setX(self, x: float)[source]

Sets X coordinate

Added in version 3.34.

Parameters:

x (float)

setY(self, y: float)[source]

Sets Y coordinate

Added in version 3.34.

Parameters:

y (float)

setZ(self, z: float)[source]

Sets Z coordinate

Added in version 3.34.

Parameters:

z (float)

toString(self, precision: int = 17) → str[source]

Returns a string representation of the 3D vector. Members will be truncated to the specified precision.

Parameters:

precision (int = 17)

Return type:

str

toVector3D(self) → QVector3D[source]

Converts the current object to QVector3D

Warning

the conversion may decrease the accuracy (double to float values conversion)

Added in version 3.24.

Return type:

QVector3D

x(self) → float[source]

Returns X coordinate

Return type:

float

y(self) → float[source]

Returns Y coordinate

Return type:

float

z(self) → float[source]

Returns Z coordinate

Return type:

float