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tooltips(default_browser)_bar_chart.html
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tooltips(default_browser)_bar_chart.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<script type="text/javascript" src="d3/d3.js"></script>
<style type="text/css">
/* No style rules here yet */
</style>
</head>
<body>
<script type="text/javascript">
//Width and height
var w = 600;
var h = 250;
var dataset = [ 5, 10, 13, 19, 21, 25, 22, 18, 15, 13,
11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];
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]);
//Create SVG element
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
//Create bars
svg.selectAll("rect")
.data(dataset)
.enter()
.append("rect")
.attr("x", function(d, i) {
return xScale(i);
})
.attr("y", function(d) {
return h - yScale(d);
})
.attr("width", xScale.rangeBand())
.attr("height", function(d) {
return yScale(d);
})
.attr("fill", function(d) {
return "rgb(0, 0, " + (d * 10) + ")";
})
.on("mouseover", function() {
d3.select(this)
.attr("fill", "orange");
})
.on("mouseout", function(d) {
d3.select(this)
.attr("fill", "rgb(0, 0, " + (d * 10) + ")");
})
.append("title") // THIS IS THE PROPERTY WHICH adds the TOOLTIP
.text(function(d){
return "Value associated with this bar is: " + d;
});
</script>
</body>
</html>