>A vector is a sequential collection of items. A polygon is a sequential
>collection of points. So a polygon can be a vector of points. No, a vector is direction and a length. The name for a sequential collection of items is tuple. ________________________________ From: Development <[email protected]> on behalf of Thiago Macieira <[email protected]> Sent: Saturday, March 25, 2017 10:06:47 PM To: [email protected] Subject: Re: [Development] QList On sábado, 25 de março de 2017 12:08:09 PDT Giuseppe D'Angelo wrote: > Il 25/03/2017 17:11, Martin Smith ha scritto: > >>Note that I think we should change QPolygon to stop inheriting from > >> > > QVector in > > > >>the first place. QPolygon is not a QVector. > >> > > But then a vector is not a collection. > > So you're saying that since QPolygon is a collection (of points) and > QVector is a collection (of anything), then a QPolygon is a QVector? A vector is a sequential collection of items. A polygon is a sequential collection of points. So a polygon can be a vector of points. But I don't think that it should inherit, since some of the operations that you can do in a vector don't really apply to a polygon. That's unlike QString/ QStringView where all operations apply, even if we have an override that returns something differently. > Humans are mammals, whales are mammals, therefore humans are whales? :-) -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
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