Module layout 

Structs

ChartArea

DataArea

Margins

Rect

RectF

Float-precision pixel rect — element bounds, selection boxes, and other sub-pixel screen geometry. Rect (u32) stays the type for buffer/texture areas; this one is for visual geometry derived from f32 layout math.

TitleBand

The margin geometry an axis title is placed inside.

TitlePlacement

Draw origin and optional rotation for a chart or axis title.

Enums

Element

FitStrategy

LayoutError

NudgeReject

NudgeResult

Side

A chart edge. Serializable because ColorBarOptions::side is part of Config; the layout-internal uses (FitStrategy::Absorb, nudge) predate that and are unaffected.

Constants

LABEL_GAP

Minimum gap between a tick end and its label, in pixels.

LEGEND_INSET

Inset between a legend box and its data-area corner, in pixels.

Functions

axis_anchor

Axis-line endpoints on pixel centers. Top/left use the first inside pixel; bottom/right use the last inside pixel.

axis_offset

Perpendicular screen translation for a detached axis.

axis_title_offset_to_screen

Convert an axis-title local offset to its rotated screen-space offset.

axis_title_placement

Where an axis title sits inside its side’s margin.

axis_visibility_extent

Visible reach on the inward and outward sides of an axis line.

axis_visibility_rect

Axis line/tick interaction bounds, including detached-axis translation.

chart_title_placement

colorbar_rect

The colourbar strip’s rectangle.

colorbar_title_placement

Place a colourbar title from the actual painted strip rectangle.

label_origin

Baseline origin for one measured tick label.

label_rect

Pixel rectangle occupied by a label drawn at a baseline origin.

legend_rect

point_on_rect_side

Place a fraction on one side of a rectangle. Horizontal sides run left-to-right; vertical sides run bottom-to-top, matching numeric axes. The colourbar renderer, label hit geometry, and tests all use this one mapping rather than independently deciding which screen end is low.

rect_axis_visibility_rect

Axis line/tick interaction bounds when the axis runs on one edge of an arbitrary rectangle. The colourbar uses this with its painted strip rectangle, so a shortened, aligned, or freely offset strip and its axis chrome cannot acquire different interaction geometry.

screen_offset_to_axis_title

Convert a screen-space drag delta to an axis title’s local offset frame.