我该如何在d3中显示我的条形图,以展示每个区域收到的奖金总额的汇总情况?使用以下数据格式:
这是我的JSBIN代码链接:https://jsbin.com/hiruci/edit?html,output。
{
School: "PS 1",
Borough: Q,
Award: 1000
},
{
School: "PS 2",
Borough: Q,
Award: 3000
},
School: "PS 4",
Borough: X,
Award: 3000
}
目前,我的柱状图按X轴组织为学校名称,Y轴为奖项金额。但我希望能够显示每个行政区的奖项金额。
代码片段:
var manhattanList = [];
var queensList = [];
var brooklynList = [];
var statenIsList = [];
var bronxList = [];
for (i=0; i<data.length; i++) {
if (data[i].boro === "M") {
manhattanList.push(data[i])
} else if (data[i].boro == "Q") {
queensList.push(data[i])
} else if (data[i].boro == "X") {
bronxList.push(data[i])
} else if (data[i].boro == "R") {
statenIsList.push(data[i])
} else {
brooklynList.push(data[i])
}
};
var width = 1000;
var height = 10000;
// creating scales:
var widthScaled = d3.scale.linear()
.domain([0, 83300000]) // data space
.range([0, width]); // pixel space
var colorScale = d3.scale.linear()
.domain([0, 83300000])
.range(["red", "blue"]);
// creating an axis - using our width scale
var axis = d3.svg.axis()
.ticks(10) // specifying how many "ticks" you want in your x
.scale(widthScaled); // scalling your x axis by canvas size
var canvas = d3.select("body")
.append("svg")
.attr("width", width)
.attr("height", height)
.attr("transform", "translate(100, 100)")
.call(axis);
canvas.selectAll("rect")
.data(data)
.enter()
.append("rect") // append rect for each data element
.attr("width", function(d) { return widthScaled(+d.award); })
.attr("height", 48)
.attr("y", function(d, i) { return i * 50; })
.attr("fill", function(d) { // randomizing bar colors
return "hsl(" + Math.random() * 360 + ",60%,80%)"
});
canvas.selectAll("text")
.data(data)
.enter()
.append("text")
.attr("fill", "white")
.attr("y", function(d, i) { return i * 50 + 24; }) // where the text is placed
.text(function (d) { return d.name; })
});
这是我的JSBIN代码链接:https://jsbin.com/hiruci/edit?html,output。