programatically generating worlds (from Google Earth KML files)

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Howdy folks

I have a bunch of Google Earth KML files with polygons indicating buildings, paths, special areas and pins indicating feature locations such as trees, poles, benches, etc.

I'd like to convert this into a gazebo world - does anybody know if there is already a body of work on this subject that I can get access to (and build upon)?

I suppose at this points, some tutorials and examples on procedurally building Gazebo worlds in general would also be very helpful. I have been Googling left and right on this subject, but didn't find much.

I was initially thinking on creating a parser that reads the KML file, and then spits out a .world file, but I probably could also create a Gazebo plugin that reads in the KML file and then generates the world accordingly. Does anyone have an opinion on these approaches, one vs the other or some other way?

Thanks in advance

Galto