我正在尝试在d3中创建多个系列,每个系列的行之间的区域具有不同的填充颜色。我已经成功地获得了第一个系列,我相信我可以创建多个系列,但我无法弄清楚如何追加这个系列的填充颜色。我试过做类似的东西:.attr(“填充”,“红色”);附加该区域,但这不起作用。这是我的完整代码:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.area {
fill: steelblue;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.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("%H:%M:%S").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()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.close); });
var area = d3.svg.area()
.x(function(d) { return x(d.date); })
.y0(function(d) { return y(d.low); })
.y1(function(d) { return y(d.high); });
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 + ")");
var context = svg.append("g")
.attr('class','container')
d3.csv("data.csv", function(error, data) {
data.forEach(function(d) {
d.date = parseDate(d.date);
d.high = +d.positive;
d.low = +d.positivelow;
});
x.domain(d3.extent(data, function(d) { return d.date; }));
<!--y.domain(d3.extent(data, function(d) { return d.close; }));-->
<!--y.domain([d3.min(data, function(d) { return d.low; }), d3.max(data, function(d) { return d.high; })]);-->
y.domain([1720,1780])
svg.append("path")
.datum(data)
.attr("class", "area")
.attr("d", area);
<!--(This line below doesn't work)-->
<!--.attr("fill","red");-->
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("Some Y Title");
});
</script>