Line generator accessor functions.
From D3 in Depth book by Peter Cook.
Last active
February 19, 2019 19:40
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Line generator (accessor functions)
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| license: gpl-3.0 | |
| height: 170 | |
| border: no |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <head> | |
| <title>Line with scales</title> | |
| </head> | |
| <style> | |
| path { | |
| fill: none; | |
| stroke: #999; | |
| } | |
| </style> | |
| <body> | |
| <svg width="700" height="160"> | |
| <g transform="translate(20, 0)"></g> | |
| </svg> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script> | |
| <script> | |
| var xScale = d3.scaleLinear().domain([0, 6]).range([0, 600]); | |
| var yScale = d3.scaleLinear().domain([0, 80]).range([150, 0]); | |
| var lineGenerator = d3.line() | |
| .x(function(d, i) { | |
| return xScale(i); | |
| }) | |
| .y(function(d) { | |
| return yScale(d.value); | |
| }); | |
| var data = [ | |
| {value: 10}, | |
| {value: 50}, | |
| {value: 30}, | |
| {value: 40}, | |
| {value: 20}, | |
| {value: 70}, | |
| {value: 50} | |
| ]; | |
| var line = lineGenerator(data); | |
| // Create a path element and set its d attribute | |
| d3.select('g') | |
| .append('path') | |
| .attr('d', line); | |
| </script> | |
| </body> | |
| </html> |
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