2D Points

[luvisdru9]

Hello!
In 2D case, how to get the coordinate points of the convex hull of the calculation result?

I entered the points as shown above, but all I got by iterating through qh.facets_.vertices_ were (0.00000, 0.00000)

[tomilov]

Hello!
qh.facets_.vertices_ is container of iterators. Its values points to the points you provide. That means (0.00000, 0.00000) is point in your data.

[luvisdru9]

Thank you for your answer, but I still have some questions. So, in the 2D case, I have many facets, each facet contains a vertices_. Does each facet refer to a 2D triangle or a 2D line?

[tomilov]

Convex hull of finite set of points in 2D is convex polygon. So each facet is segment.

[luvisdru9]

I got it. Thanks for your answer!