2018-10-12 15:37:13 -04:00
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---
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title: Add Axes to a Visualization
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---
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## Add Axes to a Visualization
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2019-03-10 22:12:27 +05:30
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### Hint 1
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2018-10-12 15:37:13 -04:00
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2019-03-10 22:12:27 +05:30
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Set the y-axis variable using `const yAxis = d3.axisLeft(yScale);`.
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2018-10-12 15:37:13 -04:00
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2019-03-10 22:12:27 +05:30
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### Hint 2
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Append the y-axis using `svg.append()`.
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### Spoiler Alert | Solution Ahead
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### Solution
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To solve the challenge, use:
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```html
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<body>
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<script>
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const dataset = [
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[ 34, 78 ],
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[ 109, 280 ],
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[ 310, 120 ],
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[ 79, 411 ],
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[ 420, 220 ],
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[ 233, 145 ],
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[ 333, 96 ],
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[ 222, 333 ],
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[ 78, 320 ],
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[ 21, 123 ]
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];
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const w = 500;
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const h = 500;
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const padding = 60;
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const xScale = d3.scaleLinear()
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.domain([0, d3.max(dataset, (d) => d[0])])
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.range([padding, w - padding]);
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const yScale = d3.scaleLinear()
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.domain([0, d3.max(dataset, (d) => d[1])])
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.range([h - padding, padding]);
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const svg = d3.select("body")
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.append("svg")
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.attr("width", w)
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.attr("height", h);
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svg.selectAll("circle")
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.data(dataset)
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.enter()
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.append("circle")
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.attr("cx", (d) => xScale(d[0]))
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.attr("cy",(d) => yScale(d[1]))
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.attr("r", (d) => 5);
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svg.selectAll("text")
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.data(dataset)
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.enter()
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.append("text")
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.text((d) => (d[0] + "," + d[1]))
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.attr("x", (d) => xScale(d[0] + 10))
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.attr("y", (d) => yScale(d[1]))
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const xAxis = d3.axisBottom(xScale);
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const yAxis = d3.axisLeft(yScale);
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svg.append("g")
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.attr("transform", "translate(0," + (h - padding) + ")")
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.call(xAxis);
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svg.append("g")
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.attr("transform", "translate(" + padding + ", 0)")
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.call(yAxis);
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</script>
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</body>
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```
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