svg

The SVG backend and publication-quality vector export. SvgBackend renders render layers as SVG, SvgPathContext is a core!PathContext that records path d strings, and svgDocument / svgFromLayers serialize geometry to a standalone SVG document.

import { svgFromLayers } from "@mapequation/d3gl/svg";

const svg = svgFromLayers(layers, { width, height }); // serializable SVG string

Classes

Class	Description
SvgBackend	A renderer for a Scene, implemented per target (WebGL / Canvas / SVG).
SvgPathContext	A PathContext that accumulates an SVG path d string. Used for publication vector export: re-run a d3 generator (geoPath, d3-shape, …) into this context and read toPath(). Curves map to native C/Q commands; arcs are flattened to line segments (correct geometry; geo export is polygons/lines, so this is rare).

Interfaces

Interface	Description
SvgPath	One styled path in an SVG document.

Functions

Function	Description
serializeTexts	Serialize screen-space text labels (#105 N7b-2) to <text> elements (coords already in screen px, so no view-transform wrapper). A halo is a stroke drawn behind the fill via paint-order:stroke.
svgDocument	Assemble styled paths into a standalone SVG document string. Paths with an empty d are skipped. fill defaults to “none” when only a stroke is given, otherwise to the provided fill.
svgFromLayers	A full SVG document for the given layers under a view transform, with optional screen-space text labels (#105 N7b-2) drawn on top so toSVG() exports include them.