我有一个d3脚本,其中的数据格式如下:
var data = [{name: "A", rank: 0, student_percentile: 100.0,
admit_probability: 24},
{name: "B", rank: 45, student_percentile: 40.3,
admit_probability: 24},
{name: "C", rank: 89, student_percentile: 89.7,
admit_probability: 24},
{name: "D", rank: 23, student_percentile: 10.9,
admit_probability: 24},
{name: "E", rank: 56, student_percentile: 30.3,
admit_probability: 24}];
当页面首次加载时,我会用这个数据制作一个气泡图。之后,用户可以输入(从A到E)。图表的x轴
由“学生百分位”组成,y轴
由排名组成。在接收到用户输入后,我想突出显示此名称的气泡(我拥有用户提供的输入的排名和“学生百分位”)。
现在,我不明白如何使用从输入中接收到的cx=xscale
(学生百分位),cy=yscale
(排名)过滤圆圈。
我拥有的脚本如下:
var svg;
var margin = 40,
width = 600,
height = 400;
xscale = d3.scaleLinear()
.domain(
d3.extent(data, function(d) { return +d.student_percentile; })
)
.nice()
.range([0, width]);
yscale = d3.scaleLinear()
.domain(d3.extent(data, function(d) { return +d.rank; }))
.nice()
.range([height, 0]);
var xAxis = d3.axisBottom().scale(xscale);
var yAxis = d3.axisLeft().scale(yscale);
svg = d3.select('.chart')
.classed("svg-container", true)
.append('svg')
.attr('class', 'chart')
.attr("viewBox", "0 0 680 490")
.attr("preserveAspectRatio", "xMinYMin meet")
.classed("svg-content-responsive", true)
.append("g")
.attr("transform", "translate(" + margin + "," + margin + ")");
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// var legend = svg.append("g")
// .attr('class', 'legend')
var color = d3.scaleOrdinal(d3.schemeCategory10);
var local = d3.local();
circles = svg.selectAll(null)
.data(data)
.enter()
.append("circle")
.attr("cx", width / 2)
.attr("cy", height / 2)
.attr("opacity", 0.3)
.attr("r", 20)
.style("fill", function(d){
if(+d.admit_probability <= 40){
return "red";
}
else if(+d.admit_probability > 40 && +d.admit_probability <= 70){
return "yellow";
}
else{
return "green";
}
})
.attr("cx", function(d) {
return xscale(+d.student_percentile);
})
.attr("cy", function(d) {
return yscale(+d.rank);
})
.on('mouseover', function(d, i) {
local.set(this, d3.select(this).style("fill"));
d3.select(this)
.transition()
.duration(1000)
.ease(d3.easeBounce)
.attr("r", 32)
.style("fill", "orange")
.style("cursor", "pointer")
.attr("text-anchor", "middle");
}
)
.on('mouseout', function(d, i) {
d3.select(this).style("fill", local.get(this));
d3.select(this).transition()
.style("opacity", 0.3)
.attr("r", 20)
.style("cursor", "default")
.transition()
.duration(1000)
.ease(d3.easeBounce)
});
texts = svg.selectAll(null)
.data(data)
.enter()
.append('text')
.attr("x", function(d) {
return xscale(+d.student_percentile);
})
.attr("text-anchor", "middle")
.attr("y", function(d) {
return yscale(+d.rank);
})
.text(function(d) {
return +d.admit_probability;
})
.attr("pointer-events", "none")
.attr("font-family", "sans-serif")
.attr("font-size", "12px")
.attr("fill", "red");
svg.append("text")
.attr("transform", "translate(" + (width / 2) + " ," + (height + margin) + ")")
.style("text-anchor", "middle")
.text("Percentile");
svg.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 0 - margin)
.attr("x",0 - (height / 2))
.attr("dy", "1em")
.style("text-anchor", "middle")
.text("Rank");
提前感谢你!