In Bubble chart with multi series, data point with z value as 0 is not plotting correctly on the chart

[gs-hbaba]

Expected behaviour

In Bubble chart data points should be plotted correctly with multi series data,

Actual behaviour

In Bubble chart data points with z value as 0 is not plotted correctly.
One of the series has a data point with z value as 0, this is point is being plotted wrongly

Live demo with steps to reproduce

http://jsfiddle.net/9dygmeo6/5/

the data point [1, 1, 0] in size by area series is plotted wrongly in chart.

Product version

Highcharts - 9.3.3

Affected browser(s)

chrome, firefox

[pawellysy]

Hi @gs-hbaba, thanks for reporting this issue!
You are defining the marker size in the plotOptions. If you don't do it, the bubble, with size 0 won't be displayed: http://jsfiddle.net/BlackLabel/pLom3bjs/

What is your view, on how this should work? Maybe the marker size should not be taken into consideration if the z-value is defined for the bubble chart?

[gs-hbaba]

Hi @pawellysy,
There is one more use case i forgot to mention.
if there is only one series it works as expected,
this issue comes only when there is multi series.

However below are the use cases i have:

1. only one series with z value 0. - works as expected.
2. multi series :

• first series has a z value 0 - there is issue with plotting.
• first series has non zero z values, other series has z value 0 - plotting is fine - no issue
• all series has z value 0 - plotting is fine - no issue

In all above cases only with multi series , first series having z value 0 case behaviour is different.

for your question : "What is your view, on how this should work? Maybe the marker size should not be taken into consideration if the z-value is defined for the bubble chart?"
answer: the marker size should be considered if the z value is less than or equals to 0 or there is no z value.

[raf18seb]

Hi @gs-hbaba!

The bubble.marker.radius property is not documented thus not supported and you should never use it because it may lead to unexpected behaviors (like e.g. the one described above).
https://api.highcharts.com/highcharts/series.bubble.marker

If you'd like to set marker.radius option in plotOptions.series for all series types, you should disable it for bubble series like this:

plotOptions: {
    series: {
        marker: {
            enabled: true,
            radius: 4
        }
    },
    bubble: {
        marker: {
            radius: null
        }
    }
},

Working demo: https://jsfiddle.net/BlackLabel/Loxyw8cv/

Closing as not a bug.