我想知道如何迭代dimple图例项并根据描述,操纵渲染矩形的不透明度。
在下面的代码中,我正在绘制两个系列。每个系列的一些元数据存储在seriesDict中,包括系列在初始加载时是否应该可见。我可以很好地完成这项任务,但是我无法弄清楚现在如何获得该系列的相关图例项目,并设置它的不透明度为0.1,以提供该系列当前隐藏的可视指示,并且可以切换。
var svg1 = dimple.newSvg("#chart1", 600, 500);
var data1 = [[{x: '01/31/1998', y: 100.0}, {x: '02/28/1998', y: 110.0}, {x: '03/31/1998', y: 120.0}, {x: '04/30/1998', y: 130.0}],
[{x: '01/31/1998', y: 120.0}, {x: '02/28/1998', y: 130.0}, {x: '03/31/1998', y: 140.0}, {x: '04/30/1998', y: 150.0}]]
var chart1 = new dimple.chart(svg1);
chart1.setBounds(70, 30, 400, 300)
var xAxis = chart1.addTimeAxis("x", "x", "%m/%d/%Y", "%b %y");
xAxis.title="Date"
var yAxis = chart1.addMeasureAxis("y", "y");
yAxis.title = "Price"
var seriesDict = {};
s1 = chart1.addSeries("Series1", dimple.plot.line, [xAxis, yAxis]);
s1.data = data1[0]
seriesDict["Series1"] = { data: data1[0], series: s1, visible: true };
s2 = chart1.addSeries("Series2", dimple.plot.line, [xAxis, yAxis]);
s2.data = data1[1]
seriesDict["Series2"] = { data: data1[1], series: s2, visible: false };
myLegend1 = chart1.addLegend(510, 100,60, 200, "Right");
chart1.draw();
chart1.legends = [];
hideSeries();
function hideSeries()
{
for(var keys in seriesDict)
{
sMeta = seriesDict[key];
if (!sMeta.visible)
{
sMeta.series.data = [];
setOpacityOfRelatedLegendItem(); <!---HOW TO ACCOMPLISH THIS-->
}
}
}
答案 0 :(得分:1)
所有图例项目都归入系列名称,因此您可以这样做:
var class = dimple._createClass([key])
myLegend1.shapes
.selectAll("rect." + class)
.style("opacity", 0.2);