ngx-charts line chart, how to show the line chart with dot for the data point all the time

for ngx-charts line chart, it show the line chart, but there is no dot for the data point.

If you hover the data point, it show a dot for the data pint and also with a label tooltip.



I like to have the line chart to show all the data point with a dot all the time like this.



I need your help on how to show a dot at the data point in ngx-charts line chart

Here is the sample for ngx-chart https://github.com/kedmenecr/cinnamon-angular5-with-ngx-charts

Here is the source code for ngx-chart libary . https://github.com/swimlane/ngx-charts

thanks.

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