svg = {
const svg = html`<svg id= "svg" ></svg>`
const container = d3.select(svg)
for(let i = 0; i < 100; i = i + 1){
container.append("circle")
.attr("fill", "cornflowerblue")
.attr("stroke", "black")
.attr("opacity", .5)
.attr("cx", data[i].x)
.attr("cy", data[i].y)
.attr("r", data[i].r)
}
return svg
}