Geometry Boost List: [geometry] Add / subtract polygons?

From: Stamsund (qxc_at_[hidden])
Date: 2020-06-22 11:36:23

Hi,

I easily could find some examples that demonstrate how to add / subtract
polygons from each other (e.g. at
https://stackoverflow.com/questions/47202777/incorrect-subtract-result-using-boost-polygon
)

Now that I do not have simple polygons, two questions come up where I could
not find an answer for:

- bases on the example given above, how do I define a polygon with holes in
it?

- when getting the returned polygon data, how can I identify the end of the
polygons outline and the beginning of a hole? Means how can I recognise in
the returned data what the outline is and what the holes are?

Thanks!

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