Logarithmic Y axis in Highcharts 3.0 bubble chart - highcharts

Question

I'm trying to change yAxis type of a Highcharts 3.0ß bubble chart to logarithmic, but - when it displays something - it displays a single series, and a single bubble... here's an simple example, based on "official" bubble chart demo : http://jsfiddle.net/FtdYf/
$(function() {
$('#container').highcharts({
chart: {
type: 'bubble',
plotBorderWidth: 1,
zoomType: 'xy'
},
title: {
text: 'Highcharts bubbles with radial gradient fill'
},
xAxis: {
gridLineWidth: 1
},
yAxis: {
startOnTick: false,
endOnTick: false,
type:'logarithmic'
},
series: [{
data: [
[9, 81, 63],
[98, 5, 89],
[51, 50, 73],
[41, 22, 14],
[58, 24, 20],
[78, 37, 34],
[55, 56, 53],
[18, 45, 70],
[42, 44, 28],
[3, 52, 59],
[31, 18, 97],
[79, 91, 63],
[93, 23, 23],
[44, 83, 22]
],
marker: {
fillColor: {
radialGradient: { cx: 0.4, cy: 0.3, r: 0.7 },
stops: [
[0, 'rgba(255,255,255,0.5)'],
[1, 'rgba(69,114,167,0.5)']
]
}
}
}, {
data: [
[42, 38, 20],
[6, 18, 1],
[1, 93, 55],
[57, 2, 90],
[80, 76, 22],
[11, 74, 96],
[88, 56, 10],
[30, 47, 49],
[57, 62, 98],
[4, 16, 16],
[46, 10, 11],
[22, 87, 89],
[57, 91, 82],
[45, 15, 98]
],
color: 'rgba(170,70,67,0.5)',
marker: {
fillColor: {
radialGradient: { cx: 0.4, cy: 0.3, r: 0.7 },
stops: [
[0, 'rgba(255,255,255,0.5)'],
[1, 'rgba(170,70,67,0.5)']
]
}
}
}]
});
});
So here's my question : is logarithmic axis (X and Y) possible on a bubble chart, and if so, why do it displays just a single series and a single bubble ?
Thanks for help !

Answer 1

You can set tickPositions or create your own tickPositioner. For example: http://jsfiddle.net/Fusher/FtdYf/2/