Playing around with paths
Created
August 27, 2019 09:37
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Hexagon
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| license: gpl-3.0 |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <style> | |
| path { | |
| fill: #64C7FF; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <script> | |
| /////////////////////////// | |
| ////////// SETUP ////////// | |
| /////////////////////////// | |
| const margin = { top: 50, right: 50, bottom: 50, left: 50 }; | |
| const height = 500 - margin.top - margin.bottom; | |
| const width = 960 - margin.left - margin.right; | |
| let svg = d3.select('body').append('svg') | |
| .attr('width', width + margin.left + margin.right) | |
| .attr('height', height + margin.top + margin.bottom); | |
| let base = svg.append('g') | |
| .attr('transform', 'translate(' + (width/2 + margin.right) + ',' + | |
| (height/2 + margin.top) + ')'); | |
| ////////////////////////// | |
| ////////// DATA ////////// | |
| ////////////////////////// | |
| let sideLength = 200; | |
| const angle = Math.PI/3; | |
| const yShift = sideLength*Math.sin(angle); | |
| points = [ | |
| {x: sideLength/2, y: -yShift}, | |
| {x: sideLength, y: 0}, | |
| {x: sideLength/2, y: yShift}, | |
| {x: -sideLength/2, y: yShift}, | |
| {x: -sideLength, y: 0}, | |
| {x: -sideLength/2, y: -yShift} | |
| ]; | |
| ////////////////////////// | |
| ////////// DRAW ////////// | |
| ////////////////////////// | |
| lineFunction = d3.line() | |
| .curve(d3.curveLinear) | |
| .x(function(d) { return d.x; }) | |
| .y(function(d) { return d.y; }); | |
| path = base.append('path') | |
| .attr('d', lineFunction(points)) | |
| .each(rotate); | |
| function rotate() { | |
| let point = points.shift(); | |
| points.push(point); | |
| d3.select(this).transition().duration(2000).delay(500) | |
| .attr('d', lineFunction(points)) | |
| .on('end', rotate); | |
| } | |
| </script> | |
| </body> |
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