我是 D3js 的新手。我需要制作一个类似(http://img59.imageshack.us/img59/3439/temp1a.png)的图表。现在我正在制作一些看起来像(http://imageshack.us/a/img441/3079/hvd2.jpg)的东西。如何制作连接点的线?也许还有其他关于图表的建议?
我的代码:
var width = 400,
height = 400,
radius = 320;
var width = 400,
height = 400,
radius = 320;
bdata = [{"value":10},
{"value":10},
{"value":20},
{"value":10},
{"value":10}];
tdata = [{"x":0.5, "y":10.5}];
var s = ([65]);
var color = d3.scale.ordinal()
.range(["#d2000e", "#ffce00", "#00a600", "#ffce00", "#d2000e"]);
var pie = d3.layout.pie()
.value(function(d) { return d.value; })
.sort(null)
.startAngle(0)
.endAngle((Math.PI/2));
var arc = d3.svg.arc()
.innerRadius(radius - 26)
.outerRadius(radius - 20);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.data([bdata])
.append("g")
.attr("transform", "translate(40, 40)");
var path = svg.selectAll("path")
.data(pie)
.enter().append("path")
.attr("fill", function(d, i) { return color(i); })
.attr("d", arc)
.attr("transform", "translate(0," + 299.5 + ")");
var x = d3.scale.linear()
.domain([0, 200])
.range([0, 300]);
var y = d3.scale.linear()
.domain([0, 20])
.range([300, 0]);
var radius = d3.scale.linear()
.domain([0, 9])
.range([180, 240]);
var fill = d3.scale.linear()
.domain([0, 9])
.range(["red", "steelblue"]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(4);
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(4);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + 300 + ")")
.call(xAxis)
.append("text")
//.attr("transform")
.attr("x", 315)
.attr("y", 5)
.attr("dx", ".71em")
.style("text-anchor", "middle")
.text("m3/hr");
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("y", -10)
.attr("dy", ".71em")
.style("text-anchor", "middle")
.style("color", "#222")
.text("bar");
var circles = svg.selectAll("circle")
.data(tdata)
.enter()
.append("circle");
var circleAttr = circles
.attr("transform", "translate(0," + 290 + ")")
.attr("cx", function (d) { return -x(d.x); })
.attr("cy", function (d) { return -y(d.y); })
.attr("r", 7);
var g2 = svg.selectAll("circle")
.data(d3.range(0, 2))
.enter()
.append("svg:g")
.attr("transform", "translate(0," + 300 + ")");
var circle = g2.selectAll("circle")
.attr("class", "secpoint")
.data(d3.range(1))
.enter()
.append("svg:circle")
.attr("transform", function(d) { return "rotate(" + -s + ")"; })
.attr("cx", d3.scale.linear().domain([0, 1]).range([297, 297]))
.attr("r", 7)
.attr("stroke", "black")