This variation of a threshold encoding demonstrates how to use clipping to change the color of a line based on a y-threshold.
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Color via Clipping
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license: gpl-3.0 |
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date | temperature | |
---|---|---|
20111001 | 62.7 | |
20111002 | 59.9 | |
20111003 | 59.1 | |
20111004 | 58.8 | |
20111005 | 58.7 | |
20111006 | 57.0 | |
20111007 | 56.7 | |
20111008 | 56.8 | |
20111009 | 56.7 | |
20111010 | 60.1 | |
20111011 | 61.1 | |
20111012 | 61.5 | |
20111013 | 64.3 | |
20111014 | 67.1 | |
20111015 | 64.6 | |
20111016 | 61.6 | |
20111017 | 61.1 | |
20111018 | 59.2 | |
20111019 | 58.9 | |
20111020 | 57.2 | |
20111021 | 56.4 | |
20111022 | 60.7 | |
20111023 | 65.1 | |
20111024 | 60.9 | |
20111025 | 56.1 | |
20111026 | 54.6 | |
20111027 | 56.1 | |
20111028 | 58.1 | |
20111029 | 57.5 | |
20111030 | 57.7 | |
20111031 | 55.1 | |
20111101 | 57.9 | |
20111102 | 64.6 | |
20111103 | 56.2 | |
20111104 | 50.5 | |
20111105 | 51.3 | |
20111106 | 52.6 | |
20111107 | 51.4 | |
20111108 | 50.6 | |
20111109 | 54.6 | |
20111110 | 55.6 | |
20111111 | 53.9 | |
20111112 | 54.0 | |
20111113 | 53.8 | |
20111114 | 53.5 | |
20111115 | 53.4 | |
20111116 | 52.2 | |
20111117 | 52.7 | |
20111118 | 53.1 | |
20111119 | 49.0 | |
20111120 | 50.4 | |
20111121 | 51.1 | |
20111122 | 52.3 | |
20111123 | 54.6 | |
20111124 | 55.1 | |
20111125 | 51.5 | |
20111126 | 53.6 | |
20111127 | 52.3 | |
20111128 | 51.0 | |
20111129 | 49.5 | |
20111130 | 49.8 | |
20111201 | 60.4 | |
20111202 | 62.2 | |
20111203 | 58.3 | |
20111204 | 52.7 | |
20111205 | 51.5 | |
20111206 | 49.9 | |
20111207 | 48.6 | |
20111208 | 46.4 | |
20111209 | 49.8 | |
20111210 | 52.1 | |
20111211 | 48.8 | |
20111212 | 47.4 | |
20111213 | 47.2 | |
20111214 | 46.1 | |
20111215 | 48.8 | |
20111216 | 47.9 | |
20111217 | 49.8 | |
20111218 | 49.1 | |
20111219 | 48.3 | |
20111220 | 49.3 | |
20111221 | 48.4 | |
20111222 | 53.3 | |
20111223 | 47.5 | |
20111224 | 47.9 | |
20111225 | 48.9 | |
20111226 | 45.9 | |
20111227 | 47.2 | |
20111228 | 48.9 | |
20111229 | 50.9 | |
20111230 | 52.9 | |
20111231 | 50.1 | |
20120101 | 53.9 | |
20120102 | 53.1 | |
20120103 | 49.7 | |
20120104 | 52.7 | |
20120105 | 52.6 | |
20120106 | 49.0 | |
20120107 | 51.0 | |
20120108 | 56.8 | |
20120109 | 52.3 | |
20120110 | 51.6 | |
20120111 | 49.8 | |
20120112 | 51.9 | |
20120113 | 53.7 | |
20120114 | 52.9 | |
20120115 | 49.7 | |
20120116 | 45.3 | |
20120117 | 43.6 | |
20120118 | 45.0 | |
20120119 | 47.3 | |
20120120 | 51.4 | |
20120121 | 53.7 | |
20120122 | 48.3 | |
20120123 | 52.9 | |
20120124 | 49.1 | |
20120125 | 52.1 | |
20120126 | 53.6 | |
20120127 | 50.4 | |
20120128 | 50.3 | |
20120129 | 53.8 | |
20120130 | 51.9 | |
20120131 | 50.0 | |
20120201 | 50.0 | |
20120202 | 51.3 | |
20120203 | 51.5 | |
20120204 | 52.0 | |
20120205 | 53.8 | |
20120206 | 54.6 | |
20120207 | 54.3 | |
20120208 | 51.9 | |
20120209 | 53.8 | |
20120210 | 53.9 | |
20120211 | 52.3 | |
20120212 | 50.1 | |
20120213 | 49.5 | |
20120214 | 48.6 | |
20120215 | 49.9 | |
20120216 | 52.4 | |
20120217 | 49.9 | |
20120218 | 51.6 | |
20120219 | 47.8 | |
20120220 | 48.7 | |
20120221 | 49.7 | |
20120222 | 53.4 | |
20120223 | 54.1 | |
20120224 | 55.9 | |
20120225 | 51.7 | |
20120226 | 47.7 | |
20120227 | 45.4 | |
20120228 | 47.0 | |
20120229 | 49.8 | |
20120301 | 48.9 | |
20120302 | 48.1 | |
20120303 | 50.7 | |
20120304 | 55.0 | |
20120305 | 48.8 | |
20120306 | 48.4 | |
20120307 | 49.9 | |
20120308 | 49.2 | |
20120309 | 51.7 | |
20120310 | 49.3 | |
20120311 | 50.0 | |
20120312 | 48.6 | |
20120313 | 53.9 | |
20120314 | 55.2 | |
20120315 | 55.9 | |
20120316 | 54.6 | |
20120317 | 48.2 | |
20120318 | 47.1 | |
20120319 | 45.8 | |
20120320 | 49.7 | |
20120321 | 51.4 | |
20120322 | 51.4 | |
20120323 | 48.4 | |
20120324 | 49.0 | |
20120325 | 46.4 | |
20120326 | 49.7 | |
20120327 | 54.1 | |
20120328 | 54.6 | |
20120329 | 52.3 | |
20120330 | 54.5 | |
20120331 | 56.2 | |
20120401 | 51.1 | |
20120402 | 50.5 | |
20120403 | 52.2 | |
20120404 | 50.6 | |
20120405 | 47.9 | |
20120406 | 47.4 | |
20120407 | 49.4 | |
20120408 | 50.0 | |
20120409 | 51.3 | |
20120410 | 53.8 | |
20120411 | 52.9 | |
20120412 | 53.9 | |
20120413 | 50.2 | |
20120414 | 50.9 | |
20120415 | 51.5 | |
20120416 | 51.9 | |
20120417 | 53.2 | |
20120418 | 53.0 | |
20120419 | 55.1 | |
20120420 | 55.8 | |
20120421 | 58.0 | |
20120422 | 52.8 | |
20120423 | 55.1 | |
20120424 | 57.9 | |
20120425 | 57.5 | |
20120426 | 55.3 | |
20120427 | 53.5 | |
20120428 | 54.7 | |
20120429 | 54.0 | |
20120430 | 53.4 | |
20120501 | 52.7 | |
20120502 | 50.7 | |
20120503 | 52.6 | |
20120504 | 53.4 | |
20120505 | 53.1 | |
20120506 | 56.5 | |
20120507 | 55.3 | |
20120508 | 52.0 | |
20120509 | 52.4 | |
20120510 | 53.4 | |
20120511 | 53.1 | |
20120512 | 49.9 | |
20120513 | 52.0 | |
20120514 | 56.0 | |
20120515 | 53.0 | |
20120516 | 51.0 | |
20120517 | 51.4 | |
20120518 | 52.2 | |
20120519 | 52.4 | |
20120520 | 54.5 | |
20120521 | 52.8 | |
20120522 | 53.9 | |
20120523 | 56.5 | |
20120524 | 54.7 | |
20120525 | 52.5 | |
20120526 | 52.1 | |
20120527 | 52.2 | |
20120528 | 52.9 | |
20120529 | 52.1 | |
20120530 | 52.1 | |
20120531 | 53.3 | |
20120601 | 54.8 | |
20120602 | 54.0 | |
20120603 | 52.3 | |
20120604 | 55.3 | |
20120605 | 53.5 | |
20120606 | 54.1 | |
20120607 | 53.9 | |
20120608 | 54.4 | |
20120609 | 55.0 | |
20120610 | 60.0 | |
20120611 | 57.2 | |
20120612 | 55.1 | |
20120613 | 53.3 | |
20120614 | 53.4 | |
20120615 | 54.6 | |
20120616 | 57.0 | |
20120617 | 55.6 | |
20120618 | 52.5 | |
20120619 | 53.9 | |
20120620 | 55.3 | |
20120621 | 53.3 | |
20120622 | 54.1 | |
20120623 | 55.2 | |
20120624 | 55.8 | |
20120625 | 56.8 | |
20120626 | 57.5 | |
20120627 | 57.7 | |
20120628 | 56.6 | |
20120629 | 56.4 | |
20120630 | 58.4 | |
20120701 | 58.8 | |
20120702 | 56.4 | |
20120703 | 56.5 | |
20120704 | 55.8 | |
20120705 | 54.8 | |
20120706 | 54.9 | |
20120707 | 54.7 | |
20120708 | 52.8 | |
20120709 | 53.7 | |
20120710 | 53.1 | |
20120711 | 52.7 | |
20120712 | 52.0 | |
20120713 | 53.4 | |
20120714 | 54.0 | |
20120715 | 54.0 | |
20120716 | 54.5 | |
20120717 | 56.7 | |
20120718 | 57.5 | |
20120719 | 57.1 | |
20120720 | 58.1 | |
20120721 | 57.6 | |
20120722 | 56.0 | |
20120723 | 56.6 | |
20120724 | 57.8 | |
20120725 | 57.5 | |
20120726 | 56.4 | |
20120727 | 55.3 | |
20120728 | 55.0 | |
20120729 | 55.6 | |
20120730 | 55.6 | |
20120731 | 55.9 | |
20120801 | 55.4 | |
20120802 | 54.4 | |
20120803 | 53.7 | |
20120804 | 54.1 | |
20120805 | 57.8 | |
20120806 | 58.2 | |
20120807 | 58.0 | |
20120808 | 57.0 | |
20120809 | 55.0 | |
20120810 | 54.8 | |
20120811 | 53.0 | |
20120812 | 52.5 | |
20120813 | 53.3 | |
20120814 | 53.9 | |
20120815 | 56.2 | |
20120816 | 57.1 | |
20120817 | 55.3 | |
20120818 | 56.2 | |
20120819 | 54.3 | |
20120820 | 53.1 | |
20120821 | 53.4 | |
20120822 | 54.5 | |
20120823 | 55.7 | |
20120824 | 54.8 | |
20120825 | 53.8 | |
20120826 | 56.5 | |
20120827 | 58.3 | |
20120828 | 58.7 | |
20120829 | 57.5 | |
20120830 | 55.9 | |
20120831 | 55.4 | |
20120901 | 55.7 | |
20120902 | 53.1 | |
20120903 | 53.5 | |
20120904 | 52.5 | |
20120905 | 54.5 | |
20120906 | 56.3 | |
20120907 | 56.4 | |
20120908 | 56.5 | |
20120909 | 56.4 | |
20120910 | 55.4 | |
20120911 | 56.2 | |
20120912 | 55.7 | |
20120913 | 54.3 | |
20120914 | 55.2 | |
20120915 | 54.3 | |
20120916 | 52.9 | |
20120917 | 54.8 | |
20120918 | 54.8 | |
20120919 | 56.8 | |
20120920 | 55.4 | |
20120921 | 55.8 | |
20120922 | 55.9 | |
20120923 | 52.8 | |
20120924 | 54.5 | |
20120925 | 53.3 | |
20120926 | 53.6 | |
20120927 | 52.1 | |
20120928 | 52.6 | |
20120929 | 53.9 | |
20120930 | 55.1 |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
margin: auto; | |
width: 960px; | |
} | |
text { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
.x.axis path { | |
display: none; | |
} | |
.line { | |
fill: none; | |
stroke: #000; | |
stroke-width: 1.5px; | |
} | |
.line.above { | |
stroke: #f00; | |
} | |
</style> | |
<body> | |
<script src="//d3js.org/d3.v3.min.js"></script> | |
<script> | |
var margin = {top: 20, right: 20, bottom: 30, left: 50}, | |
width = 960 - margin.left - margin.right, | |
height = 500 - margin.top - margin.bottom; | |
var parseDate = d3.time.format("%Y%m%d").parse; | |
var x = d3.time.scale() | |
.range([0, width]); | |
var y = d3.scale.linear() | |
.range([height, 0]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom"); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient("left"); | |
var line = d3.svg.line() | |
.interpolate("basis") | |
.x(function(d) { return x(d.date); }) | |
.y(function(d) { return y(d.temperature); }); | |
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 + ")"); | |
d3.tsv("data.tsv", function(error, data) { | |
if (error) throw error; | |
data.forEach(function(d) { | |
d.date = parseDate(d.date); | |
d.temperature = +d.temperature; | |
}); | |
x.domain([data[0].date, data[data.length - 1].date]); | |
y.domain(d3.extent(data, function(d) { return d.temperature; })); | |
svg.append("clipPath") | |
.attr("id", "clip-above") | |
.append("rect") | |
.attr("width", width) | |
.attr("height", y(55)); | |
svg.append("clipPath") | |
.attr("id", "clip-below") | |
.append("rect") | |
.attr("y", y(55)) | |
.attr("width", width) | |
.attr("height", height - y(55)); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
svg.append("g") | |
.attr("class", "y axis") | |
.call(yAxis) | |
.append("text") | |
.attr("transform", "rotate(-90)") | |
.attr("y", 6) | |
.attr("dy", ".71em") | |
.style("text-anchor", "end") | |
.text("Temperature (ºF)"); | |
svg.selectAll(".line") | |
.data(["above", "below"]) | |
.enter().append("path") | |
.attr("class", function(d) { return "line " + d; }) | |
.attr("clip-path", function(d) { return "url(#clip-" + d + ")"; }) | |
.datum(data) | |
.attr("d", line); | |
}); | |
</script> |
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