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December 17, 2015 04:28
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Testing bl.ocks.
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[ | |
5, 10, 13, 19, 21, | |
24, 22, 18, 15, 13, | |
11, 12, 15, 20, 18, | |
17, 16, 18, 23, 25 | |
] |
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Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>D3 Page Template</title> | |
<script type="text/javascript" src="../d3/d3.v3.js"></script> | |
<style type="text/css"> | |
div.bar { | |
display: inline-block; | |
width: 20px; | |
height: 75px; | |
background-color: teal; | |
margin-right: 2px; | |
} | |
</style> | |
</head> | |
<body> | |
<p>Click this text to change the data.</p> | |
<script type="text/javascript"> | |
var dataset = [ | |
5, 10, 13, 19, 21, | |
24, 22, 18, 15, 13, | |
11, 12, 15, 20, 18, | |
17, 16, 18, 23, 25]; | |
var w = 600, | |
h = 250, | |
maxValue = 100; | |
var xScale = d3.scale.ordinal() | |
.domain(d3.range(dataset.length)) | |
.rangeRoundBands([0, w], 0.05); | |
var yScale = d3.scale.linear() | |
.domain([0, d3.max(dataset)]) | |
.range([0, h]); | |
var svg = d3.select("body") | |
.append("svg") | |
.attr({ | |
"width": w, | |
"height": h | |
}); | |
svg.selectAll("rect") | |
.data(dataset) | |
.enter() | |
.append("rect") | |
.attr({ | |
"x": function(d, i) {return xScale(i);}, | |
"y": function(d) { return h - yScale(d); }, | |
"width": xScale.rangeBand(), | |
"height": function(d) { return yScale(d); }, | |
"fill": function(d) { | |
return "rgb(0, 0, " + (d * 10) + ")"; | |
} | |
}); | |
svg.selectAll("text") | |
.data(dataset) | |
.enter() | |
.append("text") | |
.text(function(d) { return d; }) | |
.attr({ | |
"x": function(d, i) { | |
return xScale(i) + xScale.rangeBand() / 2; | |
}, | |
"y": function(d) { return h - yScale(d) + 14; }, | |
"font-family": "sans-serif", | |
"font-size": "11px", | |
"fill": "white", | |
"text-anchor": "middle" | |
}); | |
d3.select("p") | |
.on("click", function() { | |
var numValues = dataset.length; | |
dataset = []; | |
for (var i = 0; i < numValues; i++) { | |
var newNumber = Math.floor(Math.random() * maxValue); | |
dataset.push(newNumber); | |
} | |
yScale.domain([0, d3.max(dataset)]); | |
svg.selectAll("rect") | |
.data(dataset) | |
.transition() | |
.attr({ | |
"y": function(d) { return h - yScale(d); }, | |
"height": function(d) { return yScale(d); }, | |
"fill": function(d) { | |
return "rgb(0, 0, " + (d * 10) + ")"; | |
} | |
}); | |
svg.selectAll("text") | |
.data(dataset) | |
.transition() | |
.text(function(d) { return d; }) | |
.attr({ | |
"x": function(d, i) { | |
return xScale(i) + xScale.rangeBand() / 2; }, | |
"y": function(d) { return h - yScale(d) + 14; } | |
}); | |
}); | |
</script> | |
</body> | |
</html> |
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