#[repr(C)]pub struct QVector4D { /* private fields */ }
Expand description
The QVector4D class represents a vector or vertex in 4D space.
C++ class: QVector4D
.
Implementations§
source§impl QVector4D
impl QVector4D
sourcepub unsafe fn add_assign(
&self,
vector: impl CastInto<Ref<QVector4D>>
) -> Ref<QVector4D>
pub unsafe fn add_assign( &self, vector: impl CastInto<Ref<QVector4D>> ) -> Ref<QVector4D>
Adds the given vector to this vector and returns a reference to this vector.
Calls C++ function: QVector4D& QVector4D::operator+=(const QVector4D& vector)
.
Adds the given vector to this vector and returns a reference to this vector.
See also operator-=().
sourcepub unsafe fn copy_from(
&self,
other: impl CastInto<Ref<QVector4D>>
) -> Ref<QVector4D>
pub unsafe fn copy_from( &self, other: impl CastInto<Ref<QVector4D>> ) -> Ref<QVector4D>
The QVector4D class represents a vector or vertex in 4D space.
Calls C++ function: QVector4D& QVector4D::operator=(const QVector4D& other)
.
sourcepub unsafe fn div_assign_float(&self, divisor: c_float) -> Ref<QVector4D>
pub unsafe fn div_assign_float(&self, divisor: c_float) -> Ref<QVector4D>
Divides this vector's coordinates by the given divisor, and returns a reference to this vector.
Calls C++ function: QVector4D& QVector4D::operator/=(float divisor)
.
Divides this vector’s coordinates by the given divisor, and returns a reference to this vector.
See also operator*=().
sourcepub unsafe fn div_assign_q_vector_4d(
&self,
vector: impl CastInto<Ref<QVector4D>>
) -> Ref<QVector4D>
pub unsafe fn div_assign_q_vector_4d( &self, vector: impl CastInto<Ref<QVector4D>> ) -> Ref<QVector4D>
Divides the components of this vector by the corresponding components in vector.
Calls C++ function: QVector4D& QVector4D::operator/=(const QVector4D& vector)
.
Divides the components of this vector by the corresponding components in vector.
This function was introduced in Qt 5.5.
See also operator*=().
sourcepub unsafe fn dot_product(
v1: impl CastInto<Ref<QVector4D>>,
v2: impl CastInto<Ref<QVector4D>>
) -> c_float
pub unsafe fn dot_product( v1: impl CastInto<Ref<QVector4D>>, v2: impl CastInto<Ref<QVector4D>> ) -> c_float
Returns the dot product of v1 and v2.
Calls C++ function: static float QVector4D::dotProduct(const QVector4D& v1, const QVector4D& v2)
.
Returns the dot product of v1 and v2.
sourcepub unsafe fn index_mut(&self, i: c_int) -> *mut c_float
pub unsafe fn index_mut(&self, i: c_int) -> *mut c_float
Returns the component of the vector at index position i as a modifiable reference.
Calls C++ function: float& QVector4D::operator[](int i)
.
Returns the component of the vector at index position i as a modifiable reference.
i must be a valid index position in the vector (i.e., 0 <= i < 4).
This function was introduced in Qt 5.2.
sourcepub unsafe fn index(&self, i: c_int) -> c_float
pub unsafe fn index(&self, i: c_int) -> c_float
Returns the component of the vector at index position i.
Calls C++ function: float QVector4D::operator[](int i) const
.
Returns the component of the vector at index position i.
i must be a valid index position in the vector (i.e., 0 <= i < 4).
This function was introduced in Qt 5.2.
sourcepub unsafe fn is_null(&self) -> bool
pub unsafe fn is_null(&self) -> bool
Returns true
if the x, y, z, and w coordinates are set to 0.0, otherwise returns false
.
Calls C++ function: bool QVector4D::isNull() const
.
Returns true
if the x, y, z, and w coordinates are set to 0.0, otherwise returns false
.
sourcepub unsafe fn length(&self) -> c_float
pub unsafe fn length(&self) -> c_float
Returns the length of the vector from the origin.
Calls C++ function: float QVector4D::length() const
.
Returns the length of the vector from the origin.
See also lengthSquared() and normalized().
sourcepub unsafe fn length_squared(&self) -> c_float
pub unsafe fn length_squared(&self) -> c_float
Returns the squared length of the vector from the origin. This is equivalent to the dot product of the vector with itself.
Calls C++ function: float QVector4D::lengthSquared() const
.
Returns the squared length of the vector from the origin. This is equivalent to the dot product of the vector with itself.
See also length() and dotProduct().
sourcepub unsafe fn mul_assign_float(&self, factor: c_float) -> Ref<QVector4D>
pub unsafe fn mul_assign_float(&self, factor: c_float) -> Ref<QVector4D>
Multiplies this vector's coordinates by the given factor, and returns a reference to this vector.
Calls C++ function: QVector4D& QVector4D::operator*=(float factor)
.
Multiplies this vector’s coordinates by the given factor, and returns a reference to this vector.
See also operator/=().
sourcepub unsafe fn mul_assign_q_vector_4d(
&self,
vector: impl CastInto<Ref<QVector4D>>
) -> Ref<QVector4D>
pub unsafe fn mul_assign_q_vector_4d( &self, vector: impl CastInto<Ref<QVector4D>> ) -> Ref<QVector4D>
Multiplies the components of this vector by the corresponding components in vector.
Calls C++ function: QVector4D& QVector4D::operator*=(const QVector4D& vector)
.
Multiplies the components of this vector by the corresponding components in vector.
sourcepub unsafe fn neg(&self) -> CppBox<QVector4D>
pub unsafe fn neg(&self) -> CppBox<QVector4D>
Calls C++ function: QVector4D operator-(const QVector4D& vector)
.
sourcepub unsafe fn new() -> CppBox<QVector4D>
pub unsafe fn new() -> CppBox<QVector4D>
Constructs a null vector, i.e. with coordinates (0, 0, 0, 0).
Calls C++ function: [constructor] void QVector4D::QVector4D()
.
Constructs a null vector, i.e. with coordinates (0, 0, 0, 0).
sourcepub unsafe fn from_4_float(
xpos: c_float,
ypos: c_float,
zpos: c_float,
wpos: c_float
) -> CppBox<QVector4D>
pub unsafe fn from_4_float( xpos: c_float, ypos: c_float, zpos: c_float, wpos: c_float ) -> CppBox<QVector4D>
Constructs a vector with coordinates (xpos, ypos, zpos, wpos).
Calls C++ function: [constructor] void QVector4D::QVector4D(float xpos, float ypos, float zpos, float wpos)
.
Constructs a vector with coordinates (xpos, ypos, zpos, wpos).
sourcepub unsafe fn from_q_point(
point: impl CastInto<Ref<QPoint>>
) -> CppBox<QVector4D>
pub unsafe fn from_q_point( point: impl CastInto<Ref<QPoint>> ) -> CppBox<QVector4D>
Constructs a vector with x and y coordinates from a 2D point, and z and w coordinates of 0.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QPoint& point)
.
Constructs a vector with x and y coordinates from a 2D point, and z and w coordinates of 0.
sourcepub unsafe fn from_q_point_f(
point: impl CastInto<Ref<QPointF>>
) -> CppBox<QVector4D>
pub unsafe fn from_q_point_f( point: impl CastInto<Ref<QPointF>> ) -> CppBox<QVector4D>
Constructs a vector with x and y coordinates from a 2D point, and z and w coordinates of 0.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QPointF& point)
.
Constructs a vector with x and y coordinates from a 2D point, and z and w coordinates of 0.
sourcepub unsafe fn from_q_vector_2d(
vector: impl CastInto<Ref<QVector2D>>
) -> CppBox<QVector4D>
pub unsafe fn from_q_vector_2d( vector: impl CastInto<Ref<QVector2D>> ) -> CppBox<QVector4D>
Constructs a 4D vector from the specified 2D vector. The z and w coordinates are set to zero.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QVector2D& vector)
.
Constructs a 4D vector from the specified 2D vector. The z and w coordinates are set to zero.
See also toVector2D().
sourcepub unsafe fn from_q_vector_2d2_float(
vector: impl CastInto<Ref<QVector2D>>,
zpos: c_float,
wpos: c_float
) -> CppBox<QVector4D>
pub unsafe fn from_q_vector_2d2_float( vector: impl CastInto<Ref<QVector2D>>, zpos: c_float, wpos: c_float ) -> CppBox<QVector4D>
Constructs a 4D vector from the specified 2D vector. The z and w coordinates are set to zpos and wpos respectively.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QVector2D& vector, float zpos, float wpos)
.
Constructs a 4D vector from the specified 2D vector. The z and w coordinates are set to zpos and wpos respectively.
See also toVector2D().
sourcepub unsafe fn from_q_vector_3d(
vector: impl CastInto<Ref<QVector3D>>
) -> CppBox<QVector4D>
pub unsafe fn from_q_vector_3d( vector: impl CastInto<Ref<QVector3D>> ) -> CppBox<QVector4D>
Constructs a 4D vector from the specified 3D vector. The w coordinate is set to zero.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QVector3D& vector)
.
Constructs a 4D vector from the specified 3D vector. The w coordinate is set to zero.
See also toVector3D().
sourcepub unsafe fn from_q_vector_3d_float(
vector: impl CastInto<Ref<QVector3D>>,
wpos: c_float
) -> CppBox<QVector4D>
pub unsafe fn from_q_vector_3d_float( vector: impl CastInto<Ref<QVector3D>>, wpos: c_float ) -> CppBox<QVector4D>
Constructs a 4D vector from the specified 3D vector. The w coordinate is set to wpos.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QVector3D& vector, float wpos)
.
Constructs a 4D vector from the specified 3D vector. The w coordinate is set to wpos.
See also toVector3D().
sourcepub unsafe fn new_copy(
other: impl CastInto<Ref<QVector4D>>
) -> CppBox<QVector4D>
pub unsafe fn new_copy( other: impl CastInto<Ref<QVector4D>> ) -> CppBox<QVector4D>
The QVector4D class represents a vector or vertex in 4D space.
Calls C++ function: [constructor] void QVector4D::QVector4D(const QVector4D& other)
.
sourcepub unsafe fn normalize(&self)
pub unsafe fn normalize(&self)
Normalizes the currect vector in place. Nothing happens if this vector is a null vector or the length of the vector is very close to 1.
Calls C++ function: void QVector4D::normalize()
.
Normalizes the currect vector in place. Nothing happens if this vector is a null vector or the length of the vector is very close to 1.
See also length() and normalized().
sourcepub unsafe fn normalized(&self) -> CppBox<QVector4D>
pub unsafe fn normalized(&self) -> CppBox<QVector4D>
Returns the normalized unit vector form of this vector.
Calls C++ function: QVector4D QVector4D::normalized() const
.
Returns the normalized unit vector form of this vector.
If this vector is null, then a null vector is returned. If the length of the vector is very close to 1, then the vector will be returned as-is. Otherwise the normalized form of the vector of length 1 will be returned.
sourcepub unsafe fn set_w(&self, w: c_float)
pub unsafe fn set_w(&self, w: c_float)
Sets the w coordinate of this point to the given w coordinate.
Calls C++ function: void QVector4D::setW(float w)
.
sourcepub unsafe fn set_x(&self, x: c_float)
pub unsafe fn set_x(&self, x: c_float)
Sets the x coordinate of this point to the given x coordinate.
Calls C++ function: void QVector4D::setX(float x)
.
sourcepub unsafe fn set_y(&self, y: c_float)
pub unsafe fn set_y(&self, y: c_float)
Sets the y coordinate of this point to the given y coordinate.
Calls C++ function: void QVector4D::setY(float y)
.
sourcepub unsafe fn set_z(&self, z: c_float)
pub unsafe fn set_z(&self, z: c_float)
Sets the z coordinate of this point to the given z coordinate.
Calls C++ function: void QVector4D::setZ(float z)
.
sourcepub unsafe fn sub_assign(
&self,
vector: impl CastInto<Ref<QVector4D>>
) -> Ref<QVector4D>
pub unsafe fn sub_assign( &self, vector: impl CastInto<Ref<QVector4D>> ) -> Ref<QVector4D>
Subtracts the given vector from this vector and returns a reference to this vector.
Calls C++ function: QVector4D& QVector4D::operator-=(const QVector4D& vector)
.
Subtracts the given vector from this vector and returns a reference to this vector.
See also operator+=().
sourcepub unsafe fn to_point(&self) -> CppBox<QPoint>
pub unsafe fn to_point(&self) -> CppBox<QPoint>
Returns the QPoint form of this 4D vector. The z and w coordinates are dropped.
Calls C++ function: QPoint QVector4D::toPoint() const
.
Returns the QPoint form of this 4D vector. The z and w coordinates are dropped.
See also toPointF() and toVector2D().
sourcepub unsafe fn to_point_f(&self) -> CppBox<QPointF>
pub unsafe fn to_point_f(&self) -> CppBox<QPointF>
Returns the QPointF form of this 4D vector. The z and w coordinates are dropped.
Calls C++ function: QPointF QVector4D::toPointF() const
.
Returns the QPointF form of this 4D vector. The z and w coordinates are dropped.
See also toPoint() and toVector2D().
sourcepub unsafe fn to_q_variant(&self) -> CppBox<QVariant>
pub unsafe fn to_q_variant(&self) -> CppBox<QVariant>
sourcepub unsafe fn to_vector_2d(&self) -> CppBox<QVector2D>
pub unsafe fn to_vector_2d(&self) -> CppBox<QVector2D>
Returns the 2D vector form of this 4D vector, dropping the z and w coordinates.
Calls C++ function: QVector2D QVector4D::toVector2D() const
.
Returns the 2D vector form of this 4D vector, dropping the z and w coordinates.
See also toVector2DAffine(), toVector3D(), and toPoint().
sourcepub unsafe fn to_vector_2d_affine(&self) -> CppBox<QVector2D>
pub unsafe fn to_vector_2d_affine(&self) -> CppBox<QVector2D>
Returns the 2D vector form of this 4D vector, dividing the x and y coordinates by the w coordinate and dropping the z coordinate. Returns a null vector if w is zero.
Calls C++ function: QVector2D QVector4D::toVector2DAffine() const
.
Returns the 2D vector form of this 4D vector, dividing the x and y coordinates by the w coordinate and dropping the z coordinate. Returns a null vector if w is zero.
See also toVector2D(), toVector3DAffine(), and toPoint().
sourcepub unsafe fn to_vector_3d(&self) -> CppBox<QVector3D>
pub unsafe fn to_vector_3d(&self) -> CppBox<QVector3D>
Returns the 3D vector form of this 4D vector, dropping the w coordinate.
Calls C++ function: QVector3D QVector4D::toVector3D() const
.
Returns the 3D vector form of this 4D vector, dropping the w coordinate.
See also toVector3DAffine(), toVector2D(), and toPoint().
sourcepub unsafe fn to_vector_3d_affine(&self) -> CppBox<QVector3D>
pub unsafe fn to_vector_3d_affine(&self) -> CppBox<QVector3D>
Returns the 3D vector form of this 4D vector, dividing the x, y, and z coordinates by the w coordinate. Returns a null vector if w is zero.
Calls C++ function: QVector3D QVector4D::toVector3DAffine() const
.
Returns the 3D vector form of this 4D vector, dividing the x, y, and z coordinates by the w coordinate. Returns a null vector if w is zero.
See also toVector3D(), toVector2DAffine(), and toPoint().
sourcepub unsafe fn w(&self) -> c_float
pub unsafe fn w(&self) -> c_float
Returns the w coordinate of this point.
Calls C++ function: float QVector4D::w() const
.
sourcepub unsafe fn x(&self) -> c_float
pub unsafe fn x(&self) -> c_float
Returns the x coordinate of this point.
Calls C++ function: float QVector4D::x() const
.
Trait Implementations§
source§impl CppDeletable for QVector4D
impl CppDeletable for QVector4D
source§impl PartialEq<Ref<QVector4D>> for QVector4D
impl PartialEq<Ref<QVector4D>> for QVector4D
source§fn eq(&self, v2: &Ref<QVector4D>) -> bool
fn eq(&self, v2: &Ref<QVector4D>) -> bool
Returns true
if page layout lhs is equal to page layout rhs, i.e. if all the attributes are exactly equal.
Calls C++ function: bool operator==(const QVector4D& v1, const QVector4D& v2)
.
Warning: no exact match found in C++ documentation. Below is the C++ documentation for bool operator==(const QPageLayout &lhs, const QPageLayout &rhs)
:
Returns true
if page layout lhs is equal to page layout rhs, i.e. if all the attributes are exactly equal.
Note that this is a strict equality, especially for page size where the QPageSize ID, name and size must exactly match, and the margins where the units must match.
See also QPageLayout::isEquivalentTo().