chart = {
const links = data.links.map(d => Object.create(d));
const nodes = data.nodes.map(d => Object.create(d));
const simulation = d3.forceSimulation(nodes)
// .force("link", d3.forceLink().id(function (d) { return d.id; }).distance(10))
.force("link", d3.forceLink(links).id(d => d.id).distance(50))
.force("charge", d3.forceManyBody().strength(-150))
.force("center", d3.forceCenter(width / 2, height / 2));
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height]);
const link = svg.append("g")
.attr("stroke", "#999")
.attr("stroke-opacity", 0.6)
.selectAll("line")
.data(links)
.join("line")
.attr("stroke-width", d => Math.sqrt(d.value));
const node = svg.append("g")
.selectAll(".node")
.data(nodes)
.join("g")
.attr('class', 'node')
.call(drag(simulation));
node.append('circle')
.attr("r", 15)
.attr("fill", color);
node.append("text")
.text(function(d) {
return d.id;
})
.style('fill', '#000')
.style('font-size', '16px')
.attr('x', 6)
.attr('y', 3);
simulation.on("tick", () => {
link
.attr("x1", function (d) {
checkBounds(d.source);
return d.source.x;
})
.attr("y1", function (d) {
return d.source.y;
})
.attr("x2", function (d) {
checkBounds(d.target);
return d.target.x;
})
.attr("y2", function (d) {
return d.target.y;
});
node
.attr("transform", function (d) {
checkBounds(d);
return "translate(" + d.x + ", " + d.y + ")";
});
});
invalidation.then(() => simulation.stop());
return svg.node();
}
data = selection.json()
height = 800
function checkBounds(d){
if (d.x < 0) d.x = 50;
if (d.x > width) d.x = width - 200;
if (d.y < 0) d.y = 50;
if (d.y > height) d.y = height - 50;
}
color = {
const scale = d3.scaleOrdinal(d3.schemePastel2)
return d => scale(d.primaria);
}
drag = simulation => {
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
return d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
}
import {legend, swatches} from "@d3/color-legend"
import {select} from "@jashkenas/inputs"
d3 = require("d3@6")
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