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David B.
Data viz engineer | twitter.com/dbumbeishvili
Published
Observable Utils
Edited
Feb 2, 2021
2 forks
43 stars
Observable Utils
Pack and unpack tabular dataLocation InputForeignObject exporting issue
Convert observable code to normal Javascript
Persistent Select InputContinent SelectorInputs in gridGroupBy we deserve 🦇Matrix InputFetcher usageComments on notebooksData driven range slidersObservableHQ built in datasetsUtils UsageStylesFetcherUtilsInstant Data Visualizer
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d3 = require('d3@v6')
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data = [8, 18, 7, 10, 19, 20, 10, 10, 6, 19, 17, 18, 23, 23, 13, 12, 15, 6, 9, 8];
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chartWidth = 400
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chartHeight = 200
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xScale = d3.scaleLinear()
.domain([0, data.length])
.range([0, chartWidth])
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yScale = d3.scaleLinear()
.domain([0, d3.max(data)])
.range([0, chartHeight]);
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{
const svg = d3.create("svg")
.attr('width',chartWidth)
.attr('height',chartHeight)

svg.append("g")
.attr("fill", 'aqua')
.selectAll("rect")
.data(data)
.join("rect")
.attr("x", (d, i) => xScale(i))
.attr("y", d => -yScale(d)+chartHeight)
.attr("height", d => yScale(d))
.attr("width", 10);


return svg.node();
}
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function drawChart(container, data) {
const chartWidth = 400;
const chartHeight = 400;

const xScale = d3
.scaleLinear()
.domain([0, data.length])
.range([0, chartWidth]);

const yScale = d3
.scaleLinear()
.domain([0, d3.max(data)])
.range([0, chartHeight]);

// This is the first and only difference: instead of creating SVG, we are appending it to container
const svg = d3
.select(container)
.append('svg')
.attr('width', chartWidth)
.attr('height', chartHeight);

svg
.append("g")
.attr("fill", 'aqua')
.selectAll("rect")
.data(data)
.join("rect")
.attr("x", (d, i) => xScale(i))
.attr("y", d => -yScale(d) + chartHeight)
.attr("height", d => yScale(d))
.attr("width", 10);
}
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