How to plot viewshed output in webmap?

Hello,

I have an output from viewshed (both the map itself (0 where there is no line of site and 1 where there is line of site) along with the reference vector). I would like to be able to plot this as an overlay in the web map display browser using the open street map data.

I currently write this overlay as a png and display it in Google Earth however due to licensing reasons I would prefer to use open street map data in the finished product.

I can open a webmap display easily enough (webmap('Open Street Map')) and select the area I wish to view etc however I am less sure how to plot the output of vmap onto it. I believe it should be possible using the wmpolygon command (https://www.mathworks.com/help/map/ref/wmpolygon.html) however I am unsure how to convert the viewshed data into a suitable format. Please could someone explain how to go about doing this.

The vmap output is created per the documentation with the following command: [vmap,vmapl] = viewshed(map,refvec,lat,lon,altobs,alttarg,'MSL','AGL',Re,4/3*Re);

The reference vector is a GeographicCellsRefernceVector.

Many thanks, Benjamin