Translation2d
Translation2d represents a position or displacement in a 2D Cartesian plane using an (x, y) pair.
Why It's Useful
This class is foundational to representing points and movements in 2D space. Since programming often involves modeling motion and field-relative positions, Translation2d is crucial.
Common Use Cases
Robot movement and odometry: Track robot translation from encoders or trajectory planners
Vision processing: Represent detected AprilTag or goal positions in field coordinates
Path following: Waypoints or target positions for autonomous navigation
Almost everything else
Useful Methods
These are for the 254 Geometry classes, these will either have a different name or not exist in the WPILib class
For the following methods trans represents an instance of the Translation2d class and rot represts an instance of the Rotation2d class
Trans.norm() - Returns the hypotenuse of the line
trans.rotateBy(rot) - Rotates the translation about the origin by the angle rot
Trans.translateBy(otherTrans) - Adds the translations tip to tip and returns the new translation
Trans.direction() - Returns a rotation 2d that contains the direction the translation is pointing
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