chart = {
const path = d3.geoPath(
d3.geoMercator().fitSize([width, (width/4)], trees)
)
const titleFormat = d3.format(",")
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, (width/4)]);
svg.append("g")
.selectAll("path")
.data(trees.features)
.join("path")
.attr("d", path)
.append("title")
return svg.node()
}