Struct rute::auto::point::Point

pub struct Point<'a> { /* private fields */ }

Notice these docs are heavy WIP and not very relevent yet

A point is specified by a x coordinate and an y coordinate which can be accessed using the x() and y() functions. The isNull() function returns true if both x and y are set to 0. The coordinates can be set (or altered) using the setX() and setY() functions, or alternatively the rx() and ry() functions which return references to the coordinates (allowing direct manipulation).

Given a point p, the following statements are all equivalent:

A QPoint object can also be used as a vector: Addition and subtraction are defined as for vectors (each component is added separately). A QPoint object can also be divided or multiplied by an int or a qreal.

In addition, the QPoint class provides the manhattanLength() function which gives an inexpensive approximation of the length of the QPoint object interpreted as a vector. Finally, QPoint objects can be streamed as well as compared.

See also: QPointF QPolygon

Licence

The documentation is an adoption of the original Qt Documentation and provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.

Implementations

impl<'a> Point<'a>

pub fn new() -> Point<'a>

pub fn is_null(&self) -> bool

Returns true if both the x and y coordinates are set to 0, otherwise returns false.

pub fn x(&self) -> i32

Returns the x coordinate of this point.

See also: setX() rx()

pub fn y(&self) -> i32

Returns the y coordinate of this point.

See also: setY() ry()

pub fn set_x(&self, x: i32) -> &Self

Sets the x coordinate of this point to the given x coordinate.

See also: x() setY()

pub fn set_y(&self, y: i32) -> &Self

Sets the y coordinate of this point to the given y coordinate.

See also: y() setX()

pub fn manhattan_length(&self) -> i32

Returns the sum of the absolute values of x() and y(), traditionally known as the of the vector from the origin to the point. For example:

This is a useful, and quick to calculate, approximation to the true length:

The tradition of arises because such distances apply to travelers who can only travel on a rectangular grid, like the streets of Manhattan.

pub fn rx(&self) -> i32

Returns a reference to the x coordinate of this point.

Using a reference makes it possible to directly manipulate x. For example:

See also: x() setX()

pub fn ry(&self) -> i32

Returns a reference to the y coordinate of this point.

Using a reference makes it possible to directly manipulate y. For example:

See also: y() setY()

pub fn dot_product<P: PointTrait<'a>>(p1: &P, p2: &P) -> i32

Returns the dot product of p1 and p2.

pub fn build(&self) -> Self

Trait Implementations

impl<'a> Clone for Point<'a>

fn clone(&self) -> Point<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> PointTrait<'a> for Point<'a>