我有这个 D3 SVG 条形图:
http://tinyurl.com/cul7oyg
在右下方(您必须向下滚动)。您可以毫无问题地将鼠标悬停在栏上。但是,单击左上角框底部的链接后,我创建了一个包含新数据的新条形图。鼠标悬停现在仅在悬停在条之间的线条上时有效。我对链接所做的只是使用: (d3.select("#barchart").html("") 清空 div 的内容,然后将一个新的较小数据集传递给该函数。数据是一个数组对象。
function generateBarForData(data) {
var margin = {top: 30, right: 10, bottom: 10, left: 10},
width = 750 - margin.left - margin.right,
height = data.length * 20 //500 - margin.top - margin.bottom;
var x = d3.scale.linear()
.range([0, width*.85])
//chart1.x =x
//chart1.y = y
var y = d3.scale.ordinal()
.rangeRoundBands([0, height], 0);
var xAxis = d3.svg.axis()
.scale(x)
.orient("top");
var svg = d3.select("#barchart").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.tsv("data.tsv", type, function(error, data) {
x.domain(d3.extent(data, function(d) { return +d.netdonations_over_population_to_gdppercap_percentage; })).nice();
y.domain(data.map(function(d) { return d.name; }));
bar = svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", function(d) { return +d.netdonations_over_population_to_gdppercap_percentage <= 0 ? ("bar negative " + d.name) : ("bar positive " + d.name); })
.attr("x", function(d) { return x(Math.min(0, +d.netdonations_over_population_to_gdppercap_percentage)); })
.attr("y", function(d) { return y(d.name); })
.attr("width", function(d) { return Math.abs(x(+d.netdonations_over_population_to_gdppercap_percentage) - x(0)); })
.attr("height", y.rangeBand()).on('mouseover', function(d,i) {
//barChartSelectOneCountry(this) //rect
selectBarChartCountryWithClear(d, this) //mouseover(d)
}).style("stroke","white")
chart1.svg = svg
chart1.x = x
chart1.y = y
svg.selectAll("text")
.data(data)
.enter().append("text").text(function(d) {
return d;
}).attr("class", function(d) {return +d.netdonations_over_population_to_gdppercap_percentage <= 0 ? "recipient" : "donor"})
.attr("y", function(d, i) {
return y(d.name)+ y.rangeBand();
//return i * (height / data.length)+30;
}).attr("x", function(d) {
return x(0) //x(Math.min(0, +d.netdonations_over_population_to_gdppercap_percentage));
}).text(function(d) {
//return y(d) + y.rangeBand() / 2;
return d.name + " " + d.netdonations_over_population_to_gdppercap_percentage;
}).style("font-size","14px").attr("dx", 3).attr("dy", "-0.45em")
svg.append("g")
.attr("class", "x axis")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.append("line")
.attr("x1", x(0))
.attr("x2", x(0))
.attr("y2", height);
}