Highcharts 'Reset Zoom' after calling setExtremes
问题 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. Is there a way for me to force the 'reset zoom' button to appear programatically ? UPDATE: calling if( !chart.resetZoomButton ) { chart.showResetZoom(); } inside the afterSetExtremes event handler makes the button appear, but clicking it doesn't do anything. UPDATE: Rather