In the Vitara charts 4.8 version Line Smoothening feature is introduced. Instead of sharp curve lines, using this new feature we can make line charts to display smooth curves.
List of charts support this feature:
Line/Area/Sparkline charts
Combination chart using Bar/Column charts
Combination chart using Stacked bar/column charts
How can we enable Smooth line feature
In the line/area/spartline charts the Smooth Line option will be available in the line settings menu.
In the combination chart if we are using line/area chart for a specific series, in the same series option menu we have the Smooth Line
Below is the screenshot of charts with smooth line feature