Hi list!
I'm trying to serve a big postgis table containing multipolygons with x,y,z
dimensions (extruded buildings).
My WMS settings are:
Default Reflector Mode: refresh
Default superoverlay mode: auto
Generate vector placemarks (KMATTR) - checked
Layer KML settings:
Default Regionating Method: native sorting
Features Per Regionated Tile: 50
First of all, when I just add a following network link to Google Earth
http://myserv:8080/geoserver/wms/kml?layers=uno:allhousefinal&format=application/vnd.google-earth.kml+xml
it works in refresh mode as expected, but placemarks are generated with zero
z coordinates.
BTW, when i serve the same data from shapefile with z-coordinate, placemarks
are extruded perfectly as supposed.
Ok, I solve this by adding a height field to the postgis table, then adding
a height.ftl with that field and features start to get extruded in vector
mode.
So when I add a kmscore=100 to the link everything always shows up in
extruded vectors, but when I zoom out to the whole city Google Earth
freezes, because it ends up showing ~170k buildings - and that's too much
for any client.
Then I remove kmscore=100 and add a
&mode=superoverlay&superoverlay_mode=auto to see less buildings as I zoom
out. GE forms a deep tree of nested network links, but I don't see anything
on a map and there are no placemarks in that links. And I don't understand
where is the problem!
When I serve from shapefile with same parameters, everything works great - I
get the same deep tree but with 50 placemarks in the deepest nodes, and as I
zoom out, nodes refresh and less buildings show up.
Though I wait way more time for the tree to form initially.
Can anyone help me out?
I'd like to serve from postgis, not shapefile, because the data is huge and
I want to benefit from native-sorting regionation and other database stuff.
Regards
Nikolai
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