<!DOCTYPE html>
<meta charset="utf-8">
<style>
.area {
fill: steelblue;
}
.bar {
fill: steelblue;
clip-path: url(#clip);
}
.zoom {
cursor: move;
fill: none;
pointer-events: all;
}
</style>
<svg width="960" height="500"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var svg = d3.select("svg"),
margin = {top: 20, right: 20, bottom: 110, left: 40},
margin2 = {top: 430, right: 20, bottom: 30, left: 40},
width = +svg.attr("width") - margin.left - margin.right,
height = +svg.attr("height") - margin.top - margin.bottom,
height2 = +svg.attr("height") - margin2.top - margin2.bottom;
var parseDate = d3.timeParse("%Y-%m");
var x = d3.scaleTime().range([0, width]),
x2 = d3.scaleTime().range([0, width]),
y = d3.scaleLinear().range([height, 0]),
y2 = d3.scaleLinear().range([height2, 0]);
var xAxis = d3.axisBottom(x),
xAxis2 = d3.axisBottom(x2),
yAxis = d3.axisLeft(y);
var brush = d3.brushX()
.extent([[0, 0], [width, height2]])
.on("brush end", brushed);
var area = d3.area()
.curve(d3.curveMonotoneX)
.x(function(d) { return x(d.Date); })
.y0(height)
.y1(function(d) { return y(d.Total); });
var area2 = d3.area()
.curve(d3.curveMonotoneX)
.x(function(d) { return x2(d.Date); })
.y0(height2)
.y1(function(d) { return y2(d.Total); });
svg.append("defs").append("clipPath")
.attr("id", "clip")
.append("rect")
.attr("width", width)
.attr("height", height);
var focus = svg.append("g")
.attr("class", "focus")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var context = svg.append("g")
.attr("class", "context")
.attr("transform", "translate(" + margin2.left + "," + margin2.top + ")");
d3.json("https://jsonblob.com/api/58063c0fe4b0bcac9f814ee6", function(error, data) {
if (error) throw error;
data.forEach(function(d){
d.Date = parseDate(d.Date);
});
x.domain(d3.extent(data, function(d) { return d.Date; }));
y.domain([0, d3.max(data, function(d) { return d.Total; })]);
x2.domain(x.domain());
y2.domain(y.domain());
focus.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.Date); })
.attr("y", function(d) { return y(d.Total); })
.attr("width", width/data.length - 2)
.attr("height", function(d) { return height - y(d.Total); });
focus.append("g")
.attr("class", "axis axis--x")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
focus.append("g")
.attr("class", "axis axis--y")
.call(yAxis);
context.append("path")
.datum(data)
.attr("class", "area")
.attr("d", area2);
context.append("g")
.attr("class", "axis axis--x")
.attr("transform", "translate(0," + height2 + ")")
.call(xAxis2);
context.append("g")
.attr("class", "brush")
.call(brush)
.call(brush.move, x.range());
});
function brushed() {
var s = d3.event.selection || x2.range();
x.domain(s.map(x2.invert, x2));
focus.select(".area").attr("d", area);
focus.select(".axis--x").call(xAxis);
focus.selectAll(".bar")
.attr("x", function(d) { return x(d.Date); });
}
</script>
嗨,馬克,將有可能以顯示與疊置條形圖的例子嗎?另外,我的xaxis不是類型日期,而是字符串。 – Pintu