[Qgis-user] RES: Trouble with select by location between point and line layer

[Håvard Tveite]

A tolerance value would probably be needed in the general
case.
Have you tested with horizontal or vertical lines?

Håvard Tveite

On 25. sep. 2015 21:53, João Carneiro wrote:
> Updating the information  below –
>
> I have checked that select by location only selects the points that are
> snapped to a vertice of a sg_line, but not snapped to segments. Is this
> working as expected, or do we have a bug here?
>
> Att.,
>
> João Carneiro
>
> *De:*João Carneiro [mailto:jhcarneiro at axaeng.com]
> *Enviada em:* sexta-feira, 25 de setembro de 2015 14:40
> *Para:* 'qgis-user at lists.osgeo.org'
> *Assunto:* Trouble with select by location between point and line layer
>
> Hello,
>
> Has anyone had the following problems?
>
> I am trying to detect topological problems in my data between two
> classes called sg_point and sg_line. Our topological rule is that
> sg_point MUST be snapped to sg_line.
>
> I imagine that the best way to do this is by using “Select By Location”
> and select all points that intersect the line. Unfortunately this does
> not work, and neither does trying the opposite selection. Trying to
> select all the points that don’t intersect the line gives me 100% of the
> points even if there were some points that were correctly snapped to the
> line beforehand.
>
> I have not managed to select only the points that don’t intersect the
> line or only the points that do intersect the line.
>
> What am I doing wrong?
>
> Thanks for any  help.
>
> Best regards,
>
> João Carneiro
>
>
>
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