我正在使用以下代码生成多线图。我得到了结果。但图表看起来像:
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 1025 - margin.left - margin.right,
height = 339 - margin.top - margin.bottom;
var x = d3.scale.linear()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.category10();
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.days); })
.y(function(d) { return y(d.testRuns); });
var svg = d3.select("#application_status_graph").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.json("js/lineChartData.json", function(error, data) {
color.domain(d3.keys(data[0]).filter(function(key) {return key !== "days"; }));
data.forEach(function(d) {
d.days = parseInt(d.days);
});
var status = color.domain().map(function(name){
return{
name: name,
values: data.map(function(d){
return {days: d.days, testRuns: +d[name]};
})
}
});
x.domain(d3.extent(data, function(d) { return d.days; }));
y.domain([
d3.min(status, function(c) { return d3.min(c.values, function(v) { return v.testRuns; }); }),
d3.max(status, function(c) { return d3.max(c.values, function(v) { return v.testRuns; }); })
]);
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("Number of Test Runs");
var city = svg.selectAll(".city")
.data(status)
.enter().append("g")
.attr("class", "city");
city.append("path")
.attr("class", "line")
.attr("d", function(d) { return line(d.values); })
.style("stroke", function(d) { return color(d.name); });
city.append("text")
.datum(function(d) { return {name: d.name, value: d.values[d.values.length - 1]}; })
.attr("transform", function(d) { return "translate(" + x(d.value.days) + "," + y(d.value.testRuns) + ")"; })
.attr("x", 3)
.attr("dy", ".35em")
.text(function(d) { return d.name; });
});
但我需要这种形式:
我是 d3 的新手。我正在使用的属性仅适用于两者。但它正以曲线的形式出现。任何帮助表示赞赏。谢谢