chart = {
// Specify the chart’s dimensions.
const width = 928;
const height = width;
const cx = width * 0.5; // adjust as needed to fit
const cy = height * 0.59; // adjust as needed to fit
const radius = Math.min(width, height) / 2 - 30;
// Create a radial tree layout. The layout’s first dimension (x)
// is the angle, while the second (y) is the radius.
const tree = d3.tree()
.size([2 * Math.PI, radius])
.separation((a, b) => (a.parent == b.parent ? 1 : 2) / a.depth);
// Sort the tree and apply the layout.
const root = tree(d3.hierarchy(data)
.sort((a, b) => d3.ascending(a.data.name, b.data.name)));
// Creates the SVG container.
const svg = d3.create("svg")
.attr("width", width)
.attr("height", height)
.attr("viewBox", [-cx, -cy, width, height])
.attr("style", "width: 100%; height: auto; font: 10px sans-serif;");
// Append links.
svg.append("g")
.attr("fill", "none")
.attr("stroke", "#555")
.attr("stroke-opacity", 0.4)
.attr("stroke-width", 1.5)
.selectAll()
.data(root.links())
.join("path")
.attr("d", d3.linkRadial()
.angle(d => d.x)
.radius(d => d.y));
// Append nodes.
svg.append("g")
.selectAll()
.data(root.descendants())
.join("circle")
.attr("transform", d => `rotate(${d.x * 180 / Math.PI - 90}) translate(${d.y},0)`)
.attr("fill", d => d.children ? "#555" : "#999")
.attr("r", 2.5);
// Append labels.
svg.append("g")
.attr("stroke-linejoin", "round")
.attr("stroke-width", 3)
.selectAll()
.data(root.descendants())
.join("text")
.attr("transform", d => `rotate(${d.x * 180 / Math.PI - 90}) translate(${d.y},0) rotate(${d.x >= Math.PI ? 180 : 0})`)
.attr("dy", "0.31em")
.attr("x", d => d.x < Math.PI === !d.children ? 6 : -6)
.attr("text-anchor", d => d.x < Math.PI === !d.children ? "start" : "end")
.attr("paint-order", "stroke")
.attr("stroke", "white")
.attr("fill", "currentColor")
.text(d => d.data.name);
return svg.node();
}
data = ({
"name":"shareholder interests",
"children":[
{
"name":"dividend yield",
"children":[
{
"name":"risks",
"children":[
{
"name":"☠️ economic downturn 🔴🔵",
"children":[
]
},
{
"name":"☠️ macroeconomic factors 🟢🔴",
"children":[
]
},
{
"name":"☠️ legal liabilities 🟢🔴",
"children":[
]
},
{
"name":"☠️ foreign exchange risks 🔵🟢",
"children":[
]
}
]
},
{
"name":"opportunities",
"children":[
{
"name":"⚔️ efficient capital allocation",
"children":[
{
"name":"🔴🔵",
"children":[
{
"name":"goal",
"children":[
{
"name":"user interest",
"children":[
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[
{"name":"risk"},
{"name":"risk"},
{"name":"risk"},
{"name":"risk"}
]
},
{
"name":"opportunities",
"children":[
{
"name":"opportunity",
"children":[
{"name":"smart"}
]
},
{"name":"opportunity"},
{"name":"opportunity"},
{"name":"opportunity"}
]
}
]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
},
{
"name":"interest",
"children":[]
}
]
}
]
}
]
}
]
},
{
"name":"⚔️ market expansion",
"children":[
{"name":"🟢🔴"}
]
},
{
"name":"⚔️ product innovation",
"children":[
{"name":"🟢🔴"}
]
},
{
"name":"⚔️ cost reduction",
"children":[
{"name":"🔵🟢"}
]
}
]
}
]
},
{
"name":"earnings per share",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
},
{
"name":"interest",
"children":[
{
"name":"risks",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
},
{
"name":"opportunities",
"children":[{"name":""},{"name":""},{"name":""},{"name":""}]
}
]
}
]
}
)
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
