我被要求在我的多线图表中添加一个交互式图例。我的多线图有一个带有两个键的嵌套,这使我的传奇变得困难。这是我用来添加交互式图例的旧版EAMPLE。
我的问题:
1)我正在尝试显示图例的顶级键,以便显示 system01,system02,system03 等,而不是一起显示两个键。例如,system01 0
和systmem01 2
变为system01
,因此点击它时会隐藏两行。
2)使线路处于非活动状态后,当鼠标悬停在图表上时,工具提示仍会显示。
这是我的FIDDLE
添加图例的代码段
var chartBody = svg.append("g")
.attr("class", "chartbody")
.attr("clip-path", "url(#clip)");
for (var key in storages) {
if (storages.hasOwnProperty(key)) {
console.log("key:", key, [storages[key]]);
var capSeries = d3.line()
.x(function(d) {
return x(d.date); })
.y(function(d) {
return y(d.availableVolumeCapacity); })
.curve(d3.curveCardinal);
// mapping of data to line using the capSeries function
chartBody.append("path")
.data([storages[key]])
.attr("class", "line")
.attr("id", 'tag'+ key.replace(/\s+/g, ''))
.attr("d", capSeries)
.style("stroke", z(key));
}
}
// spacing for the legend
legendSpace = width/nest.length;
// Loop through each symbol / key
nest.forEach(function(d,i) {
// Add the Legend
svg.append("text")
.attr("x", (legendSpace/2)+i*legendSpace) // space legend
.attr("y", height + (margin.bottom/2)+ 5)
.attr("class", "legend") // style the legend
.style("fill", function() { // Add the colours dynamically
return d.z = z(d.key); })
.on("click", function(){
// Determine if current line is visible
var active = d.active ? false : true,
newOpacity = active ? 0 : 1;
// Hide or show the elements based on the ID
d3.select("#tag"+d.key.replace(/\s+/g, ''))
.transition().duration(100)
.style("opacity", newOpacity);
// Update whether or not the elements are active
d.active = active;
})
.text(d.key);
});
答案 0 :(得分:1)
看看这个:https://jsfiddle.net/mkwne5uh/
2) 一个简单的解决方案是跟踪隐藏并有条件地应用鼠标悬停和鼠标输出。
// define an array to hold the hidden info
var hidden = [];
...
...
// Loop through each symbol / key
nest.forEach(function(d,i) {
// Add the Legend
svg.append("text")
.attr("x", (legendSpace/2)+i*legendSpace) // space legend
.attr("y", height + (margin.bottom/2)+ 5)
.attr("class", "legend") // style the legend
.style("fill", function() { // Add the colours dynamically
return d.z = z(d.key); })
.on("click", function(){
// Update whether or not the elements are active
// initial d.active will be undefined, so on first click
// d.active will become false like this
d.active = !d.active;
// Determine if current line is visible
newOpacity = d.active ? 0 : 1;
// if category is not active now, remove it
if(!d.active){
hidden.splice(hidden.indexOf(d.key), 1);
}
else{// keep it for use later on
hidden.push(d.key)
}
// Hide or show the elements based on the ID
d3.select("#tag"+d.key.replace(/\s+/g, ''))
.transition().duration(100)
.style("opacity", newOpacity);
})
.text(d.key);
});
然后:
function mouseover(d) {
if( hidden.indexOf(d.data.storageSystem + " " + d.data.poolId)> -1) return;
....
function mouseout(d) {
if( hidden.indexOf(d.data.storageSystem + " " + d.data.poolId)> -1) return;
至于1)你可以使用.text(d.key.split(" ")[0])
,但我不确定它是否是最佳解决方案。
希望这有帮助,祝你好运!