Direction

Enum Direction 

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#[repr(i8)]
pub enum Direction { Clockwise = 1, CounterClockwise = -1, }
Expand description

The direction a motor needs to turn to make the robot move forward.

This depends on how the motor is physically mounted on your robot:

  • Clockwise: Use this if the motor shaft points toward the front of the robot
  • CounterClockwise: Use this if the motor shaft points toward the back of the robot

§Examples

For a typical two-wheeled robot with motors on opposite sides:

use ev3_drivebase::{Motor, Direction};
use ev3_drivebase::ev3dev_lang_rust::motors::MotorPort;

// Left motor (shaft points forward)
let left = Motor::new(MotorPort::OutA, Direction::Clockwise);

// Right motor (shaft points backward due to mirrored mounting)
let right = Motor::new(MotorPort::OutB, Direction::CounterClockwise);

Variants§

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Clockwise = 1

Motor needs to turn clockwise to move the robot forward.

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CounterClockwise = -1

Motor needs to turn counter-clockwise to move the robot forward.

Implementations§

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impl Direction

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pub const fn sign(self) -> i32

Returns the sign multiplier for this direction.

  • Clockwise returns 1
  • CounterClockwise returns -1

This is used internally for calculating motor encoder counts.

§Examples
use ev3_drivebase::Direction;

assert_eq!(Direction::Clockwise.sign(), 1);
assert_eq!(Direction::CounterClockwise.sign(), -1);

Trait Implementations§

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impl Clone for Direction

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fn clone(&self) -> Direction

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Direction

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Ord for Direction

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fn cmp(&self, other: &Direction) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for Direction

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fn eq(&self, other: &Direction) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for Direction

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fn partial_cmp(&self, other: &Direction) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for Direction

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impl Eq for Direction

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impl StructuralPartialEq for Direction

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.