Geometry Helpers

Utility functions for working with geometry operations.

Functions

Function	Description
`applyToPoint`	Transforms a point by a matrix.
`applyToRect`	Transforms a rectangle by a matrix and returns its bounding box: the smallest axis-aligned rectangle that contains it.
`contains`	Whether a point or a rectangle is inside a rectangle.
`ellipsePath`	The path of the ellipse that fills a box, as SVG path data: two half-turn arcs.
`fit`	Places content in a box like CSS `object-fit` and `object-position`, e.g.
`fitContain`	Places content in a box, as large as possible while staying entirely inside the box (CSS `object-fit: contain`).
`fitCover`	Places content in a box, as small as possible while covering the whole box (CSS `object-fit: cover`).
`fitFill`	Places content in a box, stretched to the box on each axis, without keeping its proportions (CSS `object-fit: fill`).
`fitNone`	Places content in a box, at its own size, only positioned (CSS `object-fit: none`).
`fitScaleDown`	Places content in a box, like fitContain, but never enlarged (CSS `object-fit: scale-down`).
`formatPath`	Writes path commands back as SVG path data: letters and numbers separated by single spaces, numbers rounded to `precisi…
`identity`	The matrix that changes nothing.
`intersection`	The area two rectangles have in common.
`intersects`	Whether two rectangles have an area in common, exactly when intersection returns a rectangle: rectangles that only touc…
`invert`	The matrix that undoes `m`, e.g.
`matrixToCss`	Writes a matrix as a CSS `transform` or SVG `transform` value.
`multiply`	Multiplies matrices, in the mathematical order: the last one applies first.
`parsePath`	Parses SVG path data (the `d` attribute) into commands, as written: the letters keep their case (absolute or relative),…
`rectToRect`	The translation and scale that put one rectangle exactly on another, for animating or fitting between two boxes.
`rotate`	A matrix that rotates points around the origin.
`roundedRectPath`	The path of a rectangle with a radius per corner, as SVG path data.
`scale`	A matrix that scales points from the origin.
`simplifyPolyline`	Removes the points of a polyline that change its shape by less than `tolerance`, with the Ramer–Douglas–Peucker algorit…
`transformPath`	Transforms SVG path data by a matrix.
`translate`	A matrix that moves points by `(tx, ty)`.
`union`	The smallest rectangle that contains all the given rectangles, e.g.