Created
November 28, 2016 16:28
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d3js v4 line chart (zoom not working)
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| <html> | |
| <head> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| .axis { | |
| font-size: 11pt; | |
| } | |
| .line { | |
| fill: none; | |
| stroke: steelblue; | |
| stroke-width: 2px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <svg></svg> | |
| </div> | |
| <script> | |
| var data_str = "x,y\n0,0.45\n1,-0.55\n2,-0.15\n3,2.06\n4,1.49\n5,2.34\n6,3.21\n7,4.56\n8,3.78\n9,4.24\n10,5.01" | |
| var data = d3.csvParse(data_str, function(d) { | |
| return { | |
| x:+d.x, | |
| y:+d.y, | |
| }; | |
| }); | |
| var margin = {top: 20, right: 50, bottom: 20, left: 80}, | |
| width = 900 - margin.left - margin.right, | |
| height = 450 - margin.top - margin.bottom; | |
| var zoom = d3.zoom() | |
| .scaleExtent([1, 5]) | |
| .extent([100, 100], [width-100, height-100]) | |
| .on("zoom", zoomed); | |
| function zoomed() { | |
| svg.selectAll(".charts") | |
| .attr("transform", d3.event.transform); | |
| d3.selectAll('.line').style("stroke-width", 2/d3.event.transform.k); | |
| gX.call(xAxis.scale(d3.event.transform.rescaleX(x))); | |
| gY.call(yAxis.scale(d3.event.transform.rescaleY(y))); | |
| } | |
| var svg = d3.select("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .call(zoom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| var x = d3.scaleLinear() | |
| .domain([0, 10]) | |
| .range([0, width]); | |
| var y = d3.scaleLinear() | |
| .domain([-2, 6]) | |
| .range([height, 0]); | |
| var xAxis = d3.axisBottom(x); | |
| var yAxis = d3.axisLeft(y); | |
| var gX = svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis); | |
| var gY = svg.append("g") | |
| .attr("class", "axis axis--y") | |
| .call(yAxis) | |
| line = d3.line() | |
| .x(function(d) { return x(d.x); }) | |
| .y(function(d) { return y(d.y); }); | |
| svg.append("g") | |
| .attr("class", "charts") | |
| .append("path") | |
| .datum(data) | |
| .attr("class", "line") | |
| .attr("d", function(d) { return line(d); }); | |
| </script> | |
| </body> | |
| </html> |
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