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Last active October 9, 2018 07:58
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<!DOCTYPE html>
<svg width="800" height="500"><g transform="translate(350,50)"></g></svg>
<script src=""></script>
<script src=""></script>
<script src=""></script>
<script src=""></script>
var formatPercent = d3.format(".0%"),
formatNumber = d3.format(".0f");
var threshold = d3.scaleThreshold()
.domain([1, 50, 200, 500, 1000, 2000, 4000])
var x = d3.scaleSqrt()
.domain([1, 4500])
.range([0, 300]);
var xAxis = d3.axisBottom(x)
var g ="g").call(xAxis);".domain")
.data(threshold.range().map(function(color) {
var d = threshold.invertExtent(color);
if (d[0] == null) d[0] = x.domain()[0];
if (d[1] == null) d[1] = x.domain()[1];
return d;
.enter().insert("rect", ".tick")
.attr("height", 8)
.attr("x", function(d) { console.log(d[0]); return x(d[0]); })
.attr("width", function(d) { return x(d[1]) - x(d[0]); })
.attr("fill", function(d) { return threshold(d[0]); });
.attr("fill", "#000")
.attr("font-weight", "bold")
.attr("text-anchor", "start")
.attr("y", -6)
.text("Dân số trên km²");
Display the source blob
Display the rendered blob
<g transform="translate(350,50)" fill="none" font-size="10" font-family="sans-serif" text-anchor="middle">
<rect height="8" x="0" width="0" fill="#fee8c8"></rect>
<rect height="8" x="0" width="27.561503279315097" fill="#fee8c8"></rect>
<rect height="8" x="27.561503279315097" width="32.10131474797438" fill="#fdd49e"></rect>
<rect height="8" x="59.662818027289475" width="37.31064099360435" fill="#fdbb84"></rect>
<rect height="8" x="96.97345902089383" width="42.04817339762137" fill="#fc8d59"></rect>
<rect height="8" x="139.0216324185152" width="59.46509709193171" fill="#ef6548"></rect>
<rect height="8" x="198.4867295104469" width="84.09634679524274" fill="#d7301f"></rect>
<rect height="8" x="282.58307630568964" width="17.416923694310356" fill="#990000"></rect>
<g class="tick" opacity="1" transform="translate(0.5,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">1</text>
<g class="tick" opacity="1" transform="translate(28.061503279315097,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">50</text>
<g class="tick" opacity="1" transform="translate(60.162818027289475,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">200</text>
<g class="tick" opacity="1" transform="translate(97.47345902089383,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">500</text>
<g class="tick" opacity="1" transform="translate(139.5216324185152,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">1000</text>
<g class="tick" opacity="1" transform="translate(198.9867295104469,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">2000</text>
<g class="tick" opacity="1" transform="translate(283.08307630568964,0)">
<line stroke="#000" y2="13"></line>
<text fill="#000" y="16" dy="0.71em">4000</text>
<text fill="#000" font-weight="bold" text-anchor="start" y="-6">Dân số trên km²</text>
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