On 12/29/2015 06:42 AM, Elvis Stansvik wrote:
2015-12-28 22:49 GMT+01:00 william.croc...@analog.com
Given a QPoint and a QPainterPath.
How do I find the distance from the QPoint to the
closest point along the QPainterPath.
Like Konstantin said, the best approach probably depends on whether
you know something about your paths or not (all lines? all arcs?
I can do it, but I should not have to.
Many programs suffer from this annoyance.
I clearly point at object A and it selects object B.
(Probably because it stops at the first intersecting object.)
I say this is an important feature enhancement.
Provide a function on a QPainterPath to find the
distance of closest approach to a QPoint.
I could then use QGraphicsScene::items() to find the
intersecting set of a bounding rectangle around the
mouse click and then nail it down with distance to
each object in that set.
Elvis
Thanks.
Bill
---------
All of the above to find the shape closest to a mouse click.
Note that methods are provided to find the set of objects
which intersect a rectangle centered on the point, but which one
is really the closest?
_______________________________________________
Interest mailing list
Interest@qt-project.org
http://lists.qt-project.org/mailman/listinfo/interest
_______________________________________________
Interest mailing list
Interest@qt-project.org
http://lists.qt-project.org/mailman/listinfo/interest
