[Qgis-developer] Spatial queries plugin should ignore very small intersections

[Régis Haubourg]

Hi Andreas, 
+1 for me.  
Tolerance threshold should be square units ( area) for polygon - polygons
intersects,  and simple units  (length) for line-polygon intersections. 

Beyond that, I had in mind to fund a GUI and performance evolution of
spatial query tool. It is not very fast, and user interface is really hard
to understand for simple users. And it is the first feature I use to help
newcomers to understand GIS tools capacities. 
It also often fails when using non shp formats, or having bad geometries. We
should couple this tool with a geometry cleaning tool, raising a list of
errors and automated corrections made. So means adding a clean option to
'check geometry' tool. 

Régis



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