krz/world-incarceration

 1import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";
 2
 3let _svg, _zoom;
 4
 5export function initZoom(svg, mapGroup) {
 6	_svg = svg;
 7	_zoom = d3.zoom()
 8		.scaleExtent([0.5, 8])
 9		.on("zoom", (event) => {
10			mapGroup.attr("transform", event.transform);
11		});
12	svg.call(_zoom);
13	return _zoom;
14}
15
16export function resetZoom() {
17	_svg.transition().duration(750).call(_zoom.transform, d3.zoomIdentity);
18}