Add toImage modeBar button and onclick event for legends in wind rose plot

I want to add toImage(to download the plotted chart as image) button on the top of rose plot
.Also, onClick action for legend click of rose plot and activate its functionality just like its working for non-polar plots.

That’s correct. Plotly.toImage doesn’t work for legacy polar chart. These are now deprecated. Switching to scatterpolar https://plot.ly/javascript/polar-chart/ should fix your issues.

In the above solution we have to create bars one over the another by calculating each edge point to achieve wind rose plot.Is there any option to call mode Bar button ( to-image specifically) in the wind Rose plot.

Unfortunately, no. Sorry for the inconvenience.