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D3 Playground
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| license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:50px;right:50px;bottom:0;left:50px; } | |
| svg { | |
| width: 100%; | |
| height: 100%; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg> | |
| </svg> | |
| <script> | |
| // Feel free to change or delete any of the code you see in this editor! | |
| const data = [200, 150, 200, 300, 325, 200], | |
| rectWidth = 50, | |
| height = 300; | |
| const svg = d3.select('svg'); | |
| const currentSelection = svg.selectAll('rect') | |
| .data(data) | |
| .enter().append('rect') | |
| .attr('x', (d, i) => i * rectWidth) | |
| .attr('y', d => height - d) | |
| .attr('width', rectWidth) | |
| .attr('height', d => d) | |
| .attr('fill', 'blue') | |
| .attr('stroke', '#fff') | |
| .attr('transform', 'translate(40,20)'); | |
| //Addressing the issue of making things fit on the screen | |
| //eg super small values or large humonguous values that go off-screen | |
| const extent = d3.extent(data, d => d); | |
| console.log(extent); | |
| const yScale = d3.scaleLinear() | |
| .domain(extent) //input | |
| .range([height, 0]) //output | |
| //Now I need to do scale axis | |
| const yAxis = d3.axisLeft() | |
| .scale(yScale); | |
| d3.select('svg') | |
| .append('g') | |
| .attr('transform', 'translate(40,20)') | |
| .call(yAxis); | |
| /* | |
| const data = [100, 200, 250, 125, 175] | |
| const rectWidth = 50; | |
| const height = 300; | |
| d3.selectAll('rect') | |
| .data(data) | |
| .attr('x', (d, i) => i * rectWidth) | |
| .attr('y', d => height - d) | |
| .attr('width', rectWidth) | |
| .attr('height', d => d) | |
| .attr('fill', 'blue') | |
| .attr('stroke', '#fff'); | |
| */ | |
| </script> | |
| </body> |
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