Juliette Pera wrote:

Actually it was for point inside the polygon so it explains the problem.

But can I access the elements of the polygon if I declare it as ring?

Of course, bg::model::ring is adapted to Boost.Range concept and also has operator[]. If you had your own Ring type you could use any methods defined in it. E.g. in my eariler email if you adapted std::vector<Eigen::Vector2d> to a Ring concept you could of still call any method and operator defined in std::vector.

Then I can use the distance between the point and each segment to finally take the smallest value.

My point was that maybe you could avoid doing it manually. I don't know what you're planning to do exactly but since you're ignoring the interior of a Polygon when calculating distance then maybe a Linestring would be a better representation? You could e.g. use bg::model::linestring<Point>.

Regards,
Adam

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