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Added solution to D3: Add axes challenge (#34243)

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* Update index.md

* Update index.md
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The Coding Aviator
2019-03-10 22:12:27 +05:30
committed by Christopher McCormack
parent df3a4db5ba
commit f991a487a1
1 changed files with 72 additions and 3 deletions
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guide/english/certifications/data-visualization/data-visualization-with-d3/add-axes-to-a-visualization/index.md
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@ -3,8 +3,77 @@ title: Add Axes to a Visualization
--- ---
## Add Axes to a Visualization ## Add Axes to a Visualization
This is a stub. <a href='https://github.com/freecodecamp/guides/tree/master/src/pages/certifications/data-visualization/data-visualization-with-d3/add-axes-to-a-visualization/index.md' target='_blank' rel='nofollow'>Help our community expand it</a>. ### Hint 1
<a href='https://github.com/freecodecamp/guides/blob/master/README.md' target='_blank' rel='nofollow'>This quick style guide will help ensure your pull request gets accepted</a>. Set the y-axis variable using `const yAxis = d3.axisLeft(yScale);`.
<!-- The article goes here, in GitHub-flavored Markdown. Feel free to add YouTube videos, images, and CodePen/JSBin embeds --> ### Hint 2
Append the y-axis using `svg.append()`.
### Spoiler Alert | Solution Ahead
### Solution
To solve the challenge, use:
```html
<body>
<script>
const dataset = [
[ 34, 78 ],
[ 109, 280 ],
[ 310, 120 ],
[ 79, 411 ],
[ 420, 220 ],
[ 233, 145 ],
[ 333, 96 ],
[ 222, 333 ],
[ 78, 320 ],
[ 21, 123 ]
];
const w = 500;
const h = 500;
const padding = 60;
const xScale = d3.scaleLinear()
.domain([0, d3.max(dataset, (d) => d[0])])
.range([padding, w - padding]);
const yScale = d3.scaleLinear()
.domain([0, d3.max(dataset, (d) => d[1])])
.range([h - padding, padding]);
const svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle")
.attr("cx", (d) => xScale(d[0]))
.attr("cy",(d) => yScale(d[1]))
.attr("r", (d) => 5);
svg.selectAll("text")
.data(dataset)
.enter()
.append("text")
.text((d) => (d[0] + "," + d[1]))
.attr("x", (d) => xScale(d[0] + 10))
.attr("y", (d) => yScale(d[1]))
const xAxis = d3.axisBottom(xScale);
const yAxis = d3.axisLeft(yScale);
svg.append("g")
.attr("transform", "translate(0," + (h - padding) + ")")
.call(xAxis);
svg.append("g")
.attr("transform", "translate(" + padding + ", 0)")
.call(yAxis);
</script>
</body>
```