Howdy you all,
after I importet OSM vector data into my PostGIS-DB using osm2pgsql, the
column "Z_ORDER" was created by default, which is quite useful I think.
Because I want to draw the data on my map according to their "Z_ORDER", and
not only according to the draw order of my XML file. For instance, the
order of the attribute "highway" is not always the same relative to the
attribute "railway" - in some cases the attribute "highway" has to be drawn
under "railway" and in others above, to be correct. But how can I make use
of the "z_order" to achieve this?
(1) Do I have to make use of a filter function like "INTERSECT" and then
check the z_order between the attributes within my XML file (2) or do I
have to filter my database via SQL queries before publishing in GeoServer
(3) or am I completley on a wrong path, maybe I didn't get the point -
someone some ideas?
Many thanks in advance for your help!
Best regards,
Hightower
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