chart = {
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height]);
const arrowId = DOM.uid("arrow");
const gradientIds = data.map(() => DOM.uid("gradient"));
svg.append("defs")
.append("marker")
.attr("id", arrowId.id)
.attr("markerHeight", 10)
.attr("markerWidth", 10)
.attr("refX", 5)
.attr("refY", 2.5)
.attr("orient", "auto")
.append("path")
.attr("fill", endColor)
.attr("d", "M0,0v5l7,-2.5Z"); // arrow head
svg.append("defs")
.selectAll("linearGradient")
.data(data)
.join("linearGradient")
.attr("id", (d, i) => gradientIds[i].id)
.attr("gradientUnits", "userSpaceOnUse")
.attr("x1", d => x(d.x1))
.attr("x2", d => x(d.x2))
.attr("y1", d => y(d.y1))
.attr("y2", d => y(d.y2))
.call(g => g.append("stop").attr("stop-color", startColor).attr("stop-opacity", 0.5))
.call(g => g.append("stop").attr("offset", "100%").attr("stop-color", endColor));
svg.append("g")
.call(grid);
svg.append("g")
.call(xAxis);
svg.append("g")
.call(yAxis);
svg.append("g")
.attr("fill", "none")
.selectAll("path")
.data(data)
.join("path")
.attr("stroke", (d, i) => gradientIds[i])
.attr("marker-end", arrowId)
.attr("d", d => arc(x(d.x1), y(d.y1), x(d.x2), y(d.y2)));
svg.append("g")
.attr("fill", "currentColor")
.selectAll("circle")
.data(data)
.join("circle")
.attr("r", 1.75)
.attr("cx", d => x(d.x1))
.attr("cy", d => y(d.y1));
svg.append("g")
.attr("fill", "currentColor")
.attr("text-anchor", "middle")
.attr("font-family", "sans-serif")
.attr("font-size", 10)
.attr("stroke", "white")
.attr("stroke-linejoin", "round")
.attr("stroke-width", 4)
.attr("paint-order", "stroke fill")
.selectAll("text")
//.data(data.filter(d => d.highlight))
.data(data.filter(d => true))
.join("text")
.attr("dy", "0.1em")
.attr("x", d => x(d.x1))
.attr("y", d => y(d.y1))
.text(d => d.cc);
return svg.node();
}
data = Object.assign( cc_list_data, {'x': "prefix count", 'y': "Distance to RIS (AS Hops)"} )
risDistanceCompare20222023 = FileAttachment("ris-distance-compare@3.2022.2023.json").json()
risDistanceCompare1202301202307 = FileAttachment("ris-distance-compare@1.2023-01.2023-07.json").json()
risDistanceCompare = FileAttachment("ris-distance-compare@2.2023.09.01.2024.12.11.json").json()
d1 = risDistanceCompare['meta']['dates'][0].replaceAll('.','-')
d2 = risDistanceCompare['meta']['dates'][1].replaceAll('.','-')
cc_list_data = {
const data_src = risDistanceCompare
if ( cc_list == '' ) {
return data_src.results
}
var countries = cc_list.split(',')
var d = []
const cc_set = new Set( countries )
for (var cc_obj_idx in data_src.results ) {
const cc_obj = data_src.results[ cc_obj_idx ]
if ( cc_set.has( cc_obj['cc'] ) ) {
d.push( cc_obj )
}
}
return d
}
x = d3.scaleLog()
.domain(padLog(d3.extent(data.flatMap(d => [d.x1, d.x2])), 0.1))
.rangeRound([margin.left, width - margin.right])
y = d3.scaleLinear()
.domain(padLinear(d3.extent(data.flatMap(d => [d.y1, d.y2])), 0.1))
.rangeRound([height - margin.bottom, margin.top])
function padLinear([x0, x1], k) {
const dx = (x1 - x0) * k / 2;
return [x0 - dx, x1 + dx];
}
function padLog(x, k) {
return padLinear(x.map(Math.log), k).map(Math.exp);
}
endColor = d3.schemeCategory10[3]
startColor = d3.schemeCategory10[1]
function arc(x1, y1, x2, y2) {
const r = Math.hypot(x1 - x2, y1 - y2) * 2;
return `
M${x1},${y1}
A${r},${r} 0,0,1 ${x2},${y2}
`;
}
grid = g => g
.attr("stroke", "currentColor")
.attr("stroke-opacity", 0.1)
.call(g => g.append("g")
.selectAll("line")
.data(x.ticks())
.join("line")
.attr("x1", d => 0.5 + x(d))
.attr("x2", d => 0.5 + x(d))
.attr("y1", margin.top)
.attr("y2", height - margin.bottom))
.call(g => g.append("g")
.selectAll("line")
.data(y.ticks())
.join("line")
.attr("y1", d => 0.5 + y(d))
.attr("y2", d => 0.5 + y(d))
.attr("x1", margin.left)
.attr("x2", width - margin.right));
xAxis = g => g
.attr("transform", `translate(0,${height - margin.bottom})`)
.call(d3.axisBottom(x).ticks(width / 80, ".1s"))
.call(g => g.select(".domain").remove())
.call(g => g.append("text")
.attr("x", width)
.attr("y", margin.bottom - 4)
.attr("fill", "currentColor")
.attr("text-anchor", "end")
.text(data.x))
yAxis = g => g
.attr("transform", `translate(${margin.left},0)`)
.call(d3.axisLeft(y))
.call(g => g.select(".domain").remove())
.call(g => g.append("text")
.attr("x", -margin.left)
.attr("y", 10)
.attr("fill", "currentColor")
.attr("text-anchor", "start")
.text(data.y))
height = 640
margin = ({top: 24, right: 10, bottom: 34, left: 40})
d3 = require("d3@6")
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