Crate valo_geometry 

GPU-free geometry and color types for Valo.

Coordinates are y-down with the origin at the top-left. Units are logical pixels until transformed. Matrix is a full 4×4 transform, while draw ordering remains a renderer concern. Color stores straight-alpha sRGB.

Structs

Color

Color is a straight-alpha sRGB color.

Contour

Contour is one path contour flattened into a polyline.

ContourMeasure

ContourMeasure finds positions, tangents, and segments by distance along a contour.

Dash

Dash defines alternating painted and skipped lengths along each contour.

Matrix

Matrix is a full 4×4 column-major transform.

Path

Path is an immutable collection of line and Bézier contours.

PathBuilder

PathBuilder records commands used to create an immutable Path.

PathSample

PathSample contains a position and direction along a measured contour.

Point

Point is a position or vector in two-dimensional coordinates.

Rect

Rect is an axis-aligned rectangle in Valo’s y-down coordinate system.

Size

Size is a width and height in two-dimensional coordinates.

Stroke

Stroke describes the width, ends, joins, and optional dash pattern of a line.

Enums

Cap

Cap determines how a stroke ends at an open contour.

FillRule

FillRule determines which regions of overlapping contours are filled.

Join

Join determines how consecutive stroke segments meet.

MatrixKind

MatrixKind classifies the behavior relevant to two-dimensional rendering.

Winding

Winding selects the traversal direction of a closed contour.

Functions

constrain_radii

constrain_radii proportionally reduces circular radii to fit a rectangle.

constrain_radii_elliptical

constrain_radii_elliptical proportionally reduces elliptical radii to fit.

dash_contours

dash_contours splits contours into the painted stretches of a dash pattern.

local_tolerance

local_tolerance returns local curve tolerance for quarter-pixel device error.

stroke_contains

stroke_contains reports whether a point lies inside expanded stroke geometry.

stroke_strip

stroke_strip expands contours into triangle-strip vertices.