Highchart show/hide y axis with multiple associated series - highcharts

Question

I'm working with Highchart. I've got a multiple series graph in which several series can be associated to the same y-axis. The association is based on the measurement unit, which is also the y-axis id. Series are added dynamically.
Each y-axis has setExtremes() different than null and for this reason I have encountered one problems that it seems I can't resolve.
When hiding a series. I want the associative y-axis to be visible until all the series associated to that specific axis are hidden also. At the moment I was able just to hide the y-axis once one of the series is set to series.hide()
The used code is presented below. And can be accessed in jsfiddle through this like: http://jsfiddle.net/39xBU/134/ .
$(function () {
//creates chart options
var options = {
chart: {
renderTo: 'container',
zoomType: 'xy'
},
title: {
text: 'Axis manipulation'
},
xAxis: [{
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
}],
yAxis: [{ // Primary yAxis
id:'°C',
labels: {
formatter: function() {
return this.value +'°C';
},
style: {
color: '#89A54E'
}
},
title:{
text:''
},
opposite: true,
showEmpty: false
}, { // Secondary yAxis
id:'mm',
gridLineWidth: 0,
labels: {
formatter: function() {
return this.value +' mm';
},
style: {
color: '#4572A7'
}
},
title:{
text:''
},
showEmpty: false
}],
tooltip: {
formatter: function() {
var unit = {
'Rainfall': 'mm',
'Temperature': '°C',
'Sea-Level Pressure': 'mb'
}[this.series.name];
return ''+
this.x +': '+ this.y +' '+ unit;
}
},
legend: {
layout: 'vertical',
align: 'left',
x: 120,
verticalAlign: 'top',
y: 80,
floating: true,
backgroundColor: '#FFFFFF'
},
series: []
};
// Adds series to the chart. i do this because in the real application I add data dinamically
options.series.push({
name: 'Rainfall',
color: '#4572A7',
type: 'spline',
yAxis: getAssociativeYAxisIndex('mm', options.yAxis),
data: [149.9, 171.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 195.6, 154.4]
});
options.series.push({
name: 'Sea-Level Pressure',
type: 'spline',
color: '#4572A7',
yAxis: getAssociativeYAxisIndex('mm', options.yAxis),
data: [116, 116, 115.9, 115.5, 112.3, 109.5, 109.6, 110.2, 113.1, 116.9, 118.2, 116.7],
marker: {
enabled: false
},
dashStyle: 'shortdot'
});
options.series.push({
name: 'Temperature',
color: '#89A54E',
type: 'column', // date is not shown only if it is 'spline'
yAxis:getAssociativeYAxisIndex('°C', options.yAxis),
data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
});
var chart = new Highcharts.Chart(options);
//after rendering I set axis limits, based on their measurement unit.
var yAxis1 = chart.get('mm');
yAxis1.setExtremes(0, 200);
var yAxis2 = chart.get('°C');
yAxis2.setExtremes(0, 40);
// hide Rainfall button
$("#b1").click(function(){
chart.series[0].hide()
chart.yAxis[1].update({
labels: {
enabled: false
},
title: {
text: null
}
});
});
// hide sealevel button
$("#b").click(function(){
chart.series[1].hide()
chart.yAxis[1].update({
labels: {
enabled: false
},
title: {
text: null
}
});
});
// delete rainfall button
$("#b2").click(function(){
chart.series[0].remove();
chart.yAxis[1].setExtremes(null, null);
});
// delete sea-level button
$("#b3").click(function(){
chart.series[1].remove();
chart.yAxis[1].setExtremes(null, null);
});
//get's series associatie axis
function getAssociativeYAxisIndex(seriesMeasureUnit, yAxis) {
var axisIndex = -1;
$.each(yAxis, function (index, axes) {
if (seriesMeasureUnit == axes.id) {
axisIndex = index;
return false;
}
});
return axisIndex;
};
});
Any suggestions to this matter would be very useful.

Answer 1

You can simply check if all of series are hidden, this way: http://jsfiddle.net/39xBU/135/
And code:
new function to make it easy to read:
function hideShowAxis(series) {
var axis = series.yAxis,
show = false;
$.each(axis.series, function (i, e) {
if (e.visible) {
show = true;
}
});
axis.update({
labels: {
enabled: show
}
});
}
and execute:
// hide Rainfall button
$("#b1").click(function () {
chart.series[0].hide()
hideShowAxis(chart.series[0]);
});
// hide sealevel button
$("#b").click(function () {
chart.series[1].hide()
hideShowAxis(chart.series[1]);
});