[Qgis-developer] feedback on ticket #926

Maxim Dubinin sim at gis-lab.info
Thu Jul 16 14:44:00 EDT 2009


checked in QGIS, it's working as expected in this case, the only
minor comment is that red outline of the polygon with the hole cover
all the polygon, though I think it should exclude the hole and follow
it by outline.

Maxim

MD> if two polygons overlap, than the described behaviour is fine.

MD> However, there is something else. I think this ticket is not only about overlapping polygons,
MD> but also polygon and an island (outer and inner). I think in this case, clicking on outer and
MD> inner should lead to the selection or identification of only one polygon.

MD> The reason for wrong behavior might be, that the MBR are used instead of actual polygons,
MD> so clicking on the inner one lead to selection/id of the outer one
MD> also.

MD> Maxim

GM>> do you have any idea how should be the right behavior for the situation
GM>> described in the following ticket?

GM>> http://trac.osgeo.org/qgis/ticket/926

GM>> basically if you have two polygons that overlaps completely and you
GM>> select (with the select tool) the outer one, then the selection is ok.
GM>> If you select the inner one then both are selected. 

GM>> Using the attribute table you can select just the inner or the outer one
GM>> by selecting the relative row.

GM>> Ideas?

GM>> -- Giovanni --

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