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56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
var dataset = [
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[5, 20], [480, 90], [250, 50], [100, 33], [330, 95],
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[410, 12], [475, 44], [25, 67], [85, 21], [220, 88]
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];
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const WIDTH = 600;
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const HEIGHT = 600;
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const PADDING = 20;
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// setup data scaling to fit view
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var xScale = d3.scaleLinear()
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.domain([0, d3.max(dataset, d => d[0])])
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.range([PADDING, WIDTH - PADDING]);
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var yScale = d3.scaleLinear()
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.domain([0, d3.max(dataset, d => d[1])])
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.range([HEIGHT - PADDING, PADDING]);
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// Create SVG element
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var svg = d3.select("body")
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.append("svg")
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.attr('width', WIDTH)
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.attr("height", HEIGHT);
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// create circle dot datapoint
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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", pt => xScale(pt[0]))
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.attr("cy", pt => yScale(pt[1]))
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.attr("r", 5);
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// create label for each point
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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(pt => `${pt[0]},${pt[1]}`)
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.attr("x", pt => xScale(pt[0]))
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.attr("y", pt => yScale(pt[1]))
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.attr("font-family", "sans-serif")
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.attr("font-size", "11px")
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.attr("fill", "red");
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// create axes
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// x axis
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svg.append("g")
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.attr("transform", `translate(0,${HEIGHT-PADDING})`)
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.call(d3.axisBottom()
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.scale(xScale));
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// y axis
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svg.append("g")
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.attr("transform", `translate(${PADDING},0)`)
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.call(d3.axisLeft()
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.scale(yScale)); |