Please don't use this version and refer to mbostock's original block: Brush Handles (now in d3v4).
See issue #14.
Last active
October 4, 2016 02:51
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Brush Handles d3v4 [UNLISTED]
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| license: gpl-3.0 |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| svg { | |
| font: 10px sans-serif; | |
| } | |
| circle { | |
| -webkit-transition: fill-opacity 250ms linear; | |
| } | |
| .selecting circle { | |
| fill-opacity: .2; | |
| } | |
| .selecting circle.selected { | |
| stroke: #f00; | |
| } | |
| .resize { | |
| fill: #666; | |
| fill-opacity: .8; | |
| stroke: #000; | |
| stroke-width: 1.5px; | |
| } | |
| .axis path, .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .brush .extent { | |
| fill-opacity: .125; | |
| shape-rendering: crispEdges; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v4.js"></script> | |
| <script> | |
| var data = d3.range(800).map(Math.random); | |
| var margin = {top: 194, right: 50, bottom: 214, left: 50}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var x = d3.scaleLinear() | |
| .range([0, width]); | |
| var y = d3.randomNormal(height / 2, height / 8); | |
| var brush = d3.brushX() | |
| .extent([[0, 0], [width, height]]) | |
| .on("start", brushstart) | |
| .on("brush", brushmove) | |
| .on("end", brushend) | |
| .handleSize(height); | |
| var arc = d3.arc() | |
| .outerRadius(height / 2) | |
| .innerRadius(0) | |
| .startAngle(0) | |
| .endAngle(function(d) { return d.type=="w" ? -Math.PI : Math.PI; }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(d3.axisBottom().scale(x)); | |
| var circle = svg.append("g").selectAll("circle") | |
| .data(data) | |
| .enter().append("circle") | |
| .attr("transform", function(d) { return "translate(" + x(d) + "," + y() + ")"; }) | |
| .attr("r", 3.5); | |
| var brushg = svg.append("g") | |
| .attr("class", "brush") | |
| .call(brush); | |
| brushg.call(brush.move, [x(0.3), x(0.5)]); | |
| brushg.selectAll(".resize") | |
| .data([{type:"w"}, {type:"e"}]) | |
| .enter() | |
| .append("path") | |
| .attr("class","resize"); | |
| brushstart(); | |
| brushmove(); | |
| function brushstart() { | |
| svg.classed("selecting", true); | |
| brushg.selectAll('.resize') | |
| .attr('d', arc) | |
| } | |
| function brushmove() { | |
| var p = d3.brushSelection(brushg.node()), | |
| s = p.map(x.invert); | |
| brushg.selectAll('.resize') | |
| .attr('transform', function(d,i){ return 'translate(' + [p[i], height/2] + ')';}); | |
| circle.classed("selected", function(d) { return s[0] <= d && d <= s[1]; }); | |
| } | |
| function brushend() { | |
| svg.classed("selecting", d3.event.selection); | |
| if (!d3.event.selection) brushg.selectAll('.resize') | |
| .attr('d', null) | |
| } | |
| </script> |
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