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我已經創建了一個堆疊的條形圖,它將掃描和未掃描的項目描述爲條形,並且還添加了工具提示以表示鼠標移過時每個堆棧的值。但是,當我在棧上移動時,我想顯示「UnScanned - 57項目」這樣的工具提示,當我將鼠標移到較低的欄上時,它應該顯示「Scanned-50」。我只需要區分欄是否被掃描或未掃描以及顯示的數據值。d3.js將ID添加到堆積的條形圖
我的代碼是這樣:
<!DOCTYPE html>
<html>
<head>
<title>Scanned vs Non Scanned Data</title>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script type="text/javascript" src="../../js/Core_functions.js"></script>
<script type="text/javascript" src="../../js/graphic_functions.js"></script>
<style type="text/css">
svg {
width: 960px;
height: 500px;
border: solid 1px #ccc;
font: 10px sans-serif;
shape-rendering: crispEdges;
}
</style>
</head>
<body>
<div id="container">
<h1>Mockup of Component Scanned Mapping DV</h1>
</div>
<script type="text/javascript">
var w = 960,
h = 500,
p = [20, 50, 30, 20],
x = d3.scale.ordinal().rangeRoundBands([0, w - p[1] - p[3]]),
y = d3.scale.linear().range([0, h - p[0] - p[2]]),
z = d3.scale.ordinal().range(["#819FF7", "#CB491A"]),
parse = d3.time.format("%m/%Y").parse,
format = d3.time.format("%b-%y");
/*var yAxis = d3.svg.axis()
.scale(y)
.ticks(12)
.orient("left");*/
var svg = d3.select("#container").append("svg:svg")
.attr("width", w)
.attr("height", h)
.append("svg:g")
.attr("transform", "translate(" + p[3] + "," + (h - p[2]) + ")");
d3.csv("scandata.csv", function(scan) {
// Transpose the data into layers by cause.
var scantypes = d3.layout.stack()(["scanned", "unscanned"].map(function(scans) {
return scan.map(function(d) {
return {x: parse(d.date), y: +d[scans]};
});
}));
// Compute the x-domain (by date) and y-domain (by top).
x.domain(scantypes [0].map(function(d) { return d.x; }));
y.domain([0, d3.max(scantypes[scantypes .length - 1], function(d) { return d.y0 + d.y; })]);
// Add a group for each column.
var cause = svg.selectAll("g.scan")
.data(scantypes)
.enter().append("svg:g")
.attr("class", "scan")
.style("fill", function(d, i) { return z(i); })
.style("stroke", function(d, i) { return d3.rgb(z(i)).darker(); });
// Add a rect for each date.
var rect = cause.selectAll("rect")
.data(Object)
.enter().append("svg:rect")
.attr("x", function(d,i) {
if (i ==0)
{
return x(d.x)+ 10 ;
}
else
{
return x(d.x);
}})
.attr("y", function(d) { return -y(d.y0) - y(d.y); })
.attr("height", function(d) { return y(d.y); })
.attr("width", x.rangeBand()/2)
.on("mouseover", function(d){
return tooltip.style("visibility", "visible")
.text((d.y))
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 20) + "px"); ;})
.on("mousemove", function(d){
return tooltip.style("visibility", "visible")
.text((d.y))
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 20) + "px"); ;})
.on("mouseout", function(d){return tooltip.style("visibility", "hidden");})
.on("click", function(d){console.log(d);});
var tooltip = d3.select("#container")
.append("div")
.style("position", "absolute")
.style("z-index", "10")
.style("visibility", "visible")
.text("Scanned vs UnScanned")
.style("font", "Arial")
.style("font-size", "14px");
// Add a label per date.
var label = svg.selectAll("text")
.data(x.domain())
.enter().append("svg:text")
.attr("x", function(d) { return x(d) + x.rangeBand()/3; })
.attr("y", 6)
.attr("text-anchor", "middle")
.attr("dy", ".71em")
.text(format);
// Add y-axis rules.
var rule = svg.selectAll("g.rule")
.data(y.ticks(5))
.enter().append("svg:g")
.attr("class", "rule")
.attr("transform", function(d) { return "translate(0," + -y(d) + ")"; });
rule.append("svg:line")
.attr("x2", w - p[1] - p[3])
.style("stroke", function(d) { return d ? "#fff" : "#000"; })
.style("stroke-opacity", function(d) { return d ? .7 : null; });
rule.append("svg:text")
.attr("x", -15)
.style("font-family","Arial 12px")
.attr("dy", ".25em")
.text(d3.format(",d"));
});
</script>
</body>
</html> </script>
</body>
</html>
我的CSV數據:
date,scanned,unscanned
01/2014,10,90
02/2014,55,40
03/2014,45,23
04/2014,65,35
05/2014,100,20
06/2014,50,30
07/2014,10,90
08/2014,22,48
09/2014,0,100
10/2014,3,97
11/2014,22,60
12/2014,57,37