问题描述
在我的项目中,我为线图声明了一些y轴(温度,湿度等).但我可以显示\隐藏一些系列.
In my project I declare some y-axes (temperature, humidity, etc) for line-charts. but I can show\hide some of the series.
我只想在屏幕上有一些y轴时突出显示工具提示项的y轴
I want to highlight the y-axes of tooltip item only if there are some y-axes on the screen
我认为我可以使用
var isMultyYaxes = ( $(".flot-y-axis").length > 1 );
if (isMultyYaxes) {
$(".y" + item.series.yaxis.n + "Axis").addClass("myActiveAxis");
}
但是似乎$(.flot-y-axis")中有重复的y轴.
but it seems there are duplicate y-axes in $(".flot-y-axis").
我应该使用-
var isMultyYaxes = ( $(".flot-y-axis").length > 2 );
还有其他方法可以确定当前使用了多少个y轴吗?
Is there another way to determine how many y-axes are currently used?
推荐答案
如果您已经存储了对绘图对象的引用(使用var plot = $.plot(...);
),则可以获得如下所示的选项和轴:
If you have stored a reference to your plot-object (with var plot = $.plot(...);
) then you can get the options and the axes like this:
var yAxesCountAll = plot.getOptions().yaxes.length;
然后您可以检查轴是否显示如下:
Then you can check if the axes are shown like this:
var yAxesCountVisible = 0;
for (var i = 1; i <= yAxescountAll; i++) {
if (plot.getAxes()['y' + (i == 1 ? '' : i.toString()) + 'axis'].show) {
yAxesCountvisible++;
}
}
这篇关于flot:如何计算y轴数的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!