path_element = svg.svg.selectAll("#power_man").nodes()[0]
d3.select(path_element).attr("d")
svg.g_pnts.nodes()[0].__data__
node0 = svg.g_pnts.nodes()[0]
node0.getAttribute("cx")
viewof svg = {
const svg = d3.select(DOM.svg(height, height)).attr("id", "svg_segs");
// const n = 10;
// const pts = [...Array(n)].map((d,i)=>[height]);
const pts = [[1,-1], [0.5, -1], [-0.5, -1.], [-1, -1.]]
const n = pts.length;
const xA = svg.append("g")
.call(xAxis);
const yA = svg.append("g")
.call(yAxis);
svg.append("g")
.attr("transform", "translate(200, 200)")
.append("path")
.attr("id", "power_man")
.attr("d", "M256 28l-32 128c-32-16-64-48-96-96 0 48 0 96 32 128-32 17-64 0-96-32 0 32 0 80 48 112-32 16-64 0-80-32 0 48 16 96 48 128-16 16-48 0-64-16 0 64 48 112 112 144h76.8l16.7-68.6-17.2-86.1-97.9 5s20.3-75.2 34.9-103.7c5-9.6 7.2-18 20-18.3 11.3 0 20.4 9.8 20.4 21.9 0 12-9.1 21.8-20.4 21.8-2.3 0-4.6-.5-6.6-1.3l-5.1 46.8c29.6-8.9 56.9-18.8 84-30.9 0-.1-.1-.2-.1-.3-6.2-8.8-10.4-21.5-10.4-35.7 0-14.1 4.1-26.8 10.4-35.7 6.1-8.9 14.1-13.7 22.5-13.7 8.5 0 16.5 4.8 22.6 13.7 6.2 8.9 10.2 21.6 10.2 35.7 0 14.2-4 26.9-10.2 35.7-.1.3-.5.7-.6.9 27.3 12.1 56.1 20.6 84.3 30.3l-5-46.8c-2.2.8-4.3 1.3-6.7 1.3-11.2 0-20.3-9.8-20.3-21.8 0-12.1 9.1-21.9 20.3-21.9 12.8.3 15.2 8.7 20 18.3 14.8 28.5 35 103.7 35 103.7l-97.9-5-17.2 86.1 16.7 68.6H384c64-32 112-80 112-144-16 16-48 32-64 16 32-32 48-80 48-128-16 32-48 48-80 32 48-32 48-80 48-112-32 32-64 48-96 32 32-32 32-80 32-128-32 48-64 80-96 96z");
const dattrs = {stroke:"#000", "stroke-width":2};
// const color = d3.interpolateRdYlBu;
const color_list = ["BlanchedAlmond", "Blue", "Cyan"]
const color = d3.piecewise(d3.interpolateHsl, color_list)
const fill = (d,i)=>color(i/n);
const g_pnts = svg.append("g")
.selectAll("circle")
.data(pts)
.enter().append("circle")
.attr("cx", d=> xsc(d[0]))
.attr("cy", d=> ysc(d[1]))
.attr("r", 12)
.attr("fill", fill);
svg.property("value", {xA, yA, svg, g_pnts});
return svg.node();
}
width
md` ## References
- [@d3/d3-extent](https://observablehq.com/@d3/d3-extent)
- [Web/API/Element/setAttribute](https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute)
- [Web/API/Element/getAttribute](https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute)
`
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