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When I use QGIS 2.6.0 the project remembers if a group is expanded or collapsed. This setting is written to the project file (QGS) like <layer-tree-layer expanded="0"> or <layer-tree-layer expanded="1"> Do you have these tags in your project QGS file?


If you have to use an older version of spatialite, here is the SQL equivalent for the postgis ST_Azimuth(A,B): case when X(A) == X(B) then case when Y(A) Y(B) then 3.141592653589793 else 0 end when Y(A) == Y(B) then case when X(A) X(B) then 3.141592653589793 + 3.141592653589793/2 else 0 end ...

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