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<p><font face="Arial">Luigi,</font></p>
<p><font face="Arial">I see the problem now, I would suggest:</font></p>
<p><font face="Arial">1. Polygons to Lines (on the Buildings layer)</font></p>
<p><font face="Arial">2. Merge vector Layers (lines-from-buildings,
and line layer)</font></p>
<p><font face="Arial">3. Polygonize (merged layer)</font></p>
<p><font face="Arial">4. Join Attributes from Location (New
polygons, building layer) (Geometric predicate = within)<br>
</font></p>
<div class="moz-signature">
David<br>
<br>
<br>
</div>
<div class="moz-cite-prefix">On 6/10/2020 11:31 AM, Luigi Raffaele
Sapone wrote:<br>
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<p class="MsoNormal"><span lang="EN-GB">Hello<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I’m using QGIS 3.12<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I have a poly shapefile
named building.shp in the zip file, and a line shapefile,
named line.shp.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I’m using the
geoprocessing function ‘split polygon by line’ using
poly.shp as input, and line.shp as divide layer.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I obtain the
‘split_by_line.shp’. But, in this splitted file, the polygon
was not divided considering all the lines present, but only
some of them, as visible in ‘split_by_line.shp’.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Is there something
wrong?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Regards<o:p></o:p></span></p>
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