By default, clicking and dragging outside the current brush selection drags a new selection. This brush has been modified such that this interaction instead selects everything.
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April 11, 2025 11:14
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| license: gpl-3.0 | |
| redirect: https://observablehq.com/@d3/double-click-brush-clear |
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| <!DOCTYPE html> | |
| <style> | |
| .selected { | |
| fill: red; | |
| stroke: brown; | |
| } | |
| </style> | |
| <svg width="960" height="500"></svg> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var randomX = d3.randomUniform(0, 10), | |
| randomY = d3.randomNormal(0.5, 0.12), | |
| data = d3.range(800).map(function() { return [randomX(), randomY()]; }); | |
| var svg = d3.select("svg"), | |
| margin = {top: 194, right: 50, bottom: 214, left: 50}, | |
| width = +svg.attr("width") - margin.left - margin.right, | |
| height = +svg.attr("height") - margin.top - margin.bottom, | |
| g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| var x = d3.scaleLinear() | |
| .domain([0, 10]) | |
| .range([0, width]); | |
| var y = d3.scaleLinear() | |
| .range([height, 0]); | |
| var brush = d3.brushX() | |
| .extent([[0, 0], [width, height]]) | |
| .on("start brush", brushed); | |
| var dot = g.append("g") | |
| .attr("fill-opacity", 0.2) | |
| .selectAll("circle") | |
| .data(data) | |
| .enter().append("circle") | |
| .attr("transform", function(d) { return "translate(" + x(d[0]) + "," + y(d[1]) + ")"; }) | |
| .attr("r", 3.5); | |
| g.append("g") | |
| .call(brush) | |
| .call(brush.move, [3, 5].map(x)) | |
| .selectAll(".overlay") | |
| .on("mousedown touchstart", beforebrushed, true); | |
| g.append("g") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(d3.axisBottom(x)); | |
| function beforebrushed() { | |
| d3.event.stopImmediatePropagation(); | |
| d3.select(this.parentNode).transition().call(brush.move, x.range()); | |
| } | |
| function brushed() { | |
| var extent = d3.event.selection.map(x.invert, x); | |
| dot.classed("selected", function(d) { return extent[0] <= d[0] && d[0] <= extent[1]; }); | |
| } | |
| </script> |
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hi,
may i have your email please?