Related examples:
- SVG geometric zooming
- SVG semantic zooming
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February 12, 2018 15:53
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SVG Semantic Zooming
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>Zoom + Pan</title> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <style> | |
| svg { | |
| font: 10px sans-serif; | |
| } | |
| .overlay { | |
| fill: none; | |
| pointer-events: all; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| </style> | |
| <body> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var randomX = d3.random.normal(width / 2, 80), | |
| randomY = d3.random.normal(height / 2, 80); | |
| var data = d3.range(100).map(function() { | |
| return [ | |
| randomX(), | |
| randomY() | |
| ]; | |
| }); | |
| var x = d3.scale.linear() | |
| .domain([0, width]) | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .domain([0, height]) | |
| .range([height, 0]); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .call(d3.behavior.zoom().x(x).y(y).scaleExtent([1, 8]).on("zoom", zoom)); | |
| svg.append("rect") | |
| .attr("class", "overlay") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var text = svg.selectAll("text") | |
| .data(data) | |
| .enter().append("text") | |
| .text(function() {return Math.round(Math.random()*10)}) | |
| .style('font-size', '30px') | |
| .style('font-style', 'italic') | |
| .attr("transform", transform); | |
| function zoom() { | |
| text.attr("transform", transform); | |
| } | |
| function transform(d) { | |
| return "translate(" + x(d[0]) + "," + y(d[1]) + ")"; | |
| } | |
| </script> |
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