Struct PositionDodge2 

pub struct PositionDodge2 {
    pub padding: f64,
    pub width: Option<f64>,
    pub reverse: bool,
    pub preserve_single: bool,
}

Like position_dodge but preserves total width and adds padding between groups (ggplot2’s position_dodge2(width, padding, reverse)). Elements are centred exactly as PositionDodge places them; on a continuous axis xmin/xmax shrink to (1 − padding) of each group’s share.

Fields

padding: f64

width: Option<f64>

Total dodge width; None = the layer default (0.9).

reverse: bool

Reverse the group order.

preserve_single: bool

preserve = "single" (see PositionDodge::preserve_single).

Implementations

impl PositionDodge2

pub fn new(padding: f64) -> Self

pub fn with_width(self, width: f64) -> Self

Set the total dodge width.

pub fn with_reverse(self, reverse: bool) -> Self

Reverse the order of the dodged groups (reverse = TRUE).

pub fn with_preserve_single(self) -> Self

preserve = "single": elements keep one group’s width in a slot with fewer groups.

Trait Implementations

impl Clone for PositionDodge2

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PositionDodge2

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

Formats the value using the given formatter.

impl Default for PositionDodge2

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for PositionDodge2

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Position for PositionDodge2

fn per_panel(&self) -> bool

Same per-panel rule as PositionDodge (#153): dodge_rows is shared between the two.

fn group_order(&self, data: &DataFrame) -> Option<Vec<String>>

Same whole-layer group ranking as PositionDodge (review #167 finding 2): dodge_rows is shared between the two.

fn compute(&self, data: &mut DataFrame, params: &PositionParams)

Adjust positions for data.

fn name(&self) -> &str

fn validate(&self, _warnings: &mut Vec<String>)

Validate this position’s own parameters once per layer (D2); default no-op. Implementations push a warning and fall back to a sane default rather than panicking or silently miscomputing.

impl StructuralPartialEq for PositionDodge2