调用setExtremes后，Highcharts“重置缩放" [英] Highcharts 'Reset Zoom' after calling setExtremes

问题描述

我正在使用setExtremes放大图表中的详细信息，并允许用户通过在图表中进行选择来放大"x，y".当用户缩放时，他们会看到一个重置缩放"按钮，但是当我调用setExtremes时，却没有.

I am using setExtremes to zoom in on detail in a chart, as well as allowing the user to zoom 'x,y' by selecting in the chart. When the user zooms, they get a 'reset zoom' button, however when I call setExtremes, I don't.

我是否可以强制以编程方式显示重置缩放"按钮?

Is there a way for me to force the 'reset zoom' button to appear programatically ?

更新:

通话

if( !chart.resetZoomButton ) {
    chart.showResetZoom();
}

在afterSetExtremes事件处理程序内部使该按钮出现，但是单击该按钮不会执行任何操作.

inside the afterSetExtremes event handler makes the button appear, but clicking it doesn't do anything.

更新:

我没有打电话给setExtremes，而是改为打电话给

Rather than calling setExtremes, I've changed to calling

chart.xaxis [0] .zoom(minx，maxx);chart.yaxis [0] .zoom(miny，maxy);chart.redraw();

chart.xaxis[0].zoom(minx, maxx); chart.yaxis[0].zoom(miny, maxy); chart.redraw();

这与用户通过在图表上进行选择来放大具有相同的作用.

This has the same affect as the user zoomin in by selecting on the chart.

推荐答案

只看了一眼HighCharts源代码，看起来这可能对您有用:

Just had a look around the HighCharts source code, it looks like this may work out for you:

chart.showResetZoom();

此外，为了使按钮正常工作，您应该使用axis.zoom而不是设置极限值:

Also, in order for the button to work correctly, you should use axis.zoom instead of setting the extremes:

axis.zoom(newMin,newMax);

让我知道它是否有效！

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