Use multiple <FeatureTypeStyle> tags in your SLD. First <FeatureTypeStyle> tags
contain least important symbols, while consecutive <FeatureTypeStyle>-tags
contain more important symbols. You can use the <ogc:Filter> to specify the
attribute that indicates the importance of the symbol.
Each <FeatureTypeStyle> tag makes a full scan of the table and draws only the
features that satisfy the <ogc:Filter> statement. Thus the most important
symbols are drawn last on top of the less important symbols.
Regards,
Edward
From: [email protected]
To: [email protected]; [email protected]
Date: Fri, 4 Jan 2013 07:04:45 -0500
Subject: Re: [Geoserver-users] [bulk]: Decluttering/SLD/CSS
Thanks Stefan, But my understanding is that that only applies to labels.. it is
control over the point symbols that I need/want. Brgrds, Chris From: Stefan
Engelhardt (HBT) [mailto:[email protected]]
Sent: 04 January 2013 11:53
To: [email protected]
Subject: Re: [Geoserver-users] [bulk]: Decluttering/SLD/CSS Hi Chris,without
having done it by myself, I would expect, that priority would give you what you
want: http://docs.geoserver.org/2.1.0/user/styling/sld-reference/labeling.html
CheersStefan From: Chris Haste [mailto:[email protected]]
Sent: Friday, January 04, 2013 12:19 PM
To: [email protected]
Subject: [bulk]: [Geoserver-users] Decluttering/SLD/CSS Hello list and HNY to
you all! This is probably a very basic question so if someone can point me in
the right direction it would be greatly appreciated. I understand how to
control labelling based on zoom level, priority and z-order to manage the
clarity of the map. I also understand how to display or not display point
symbols based on zoom level filters. BUT I can’t work out how to control
drawing symbols with the same degree of control as I have over labels. I have
points on a map that are more important than others but are all in the same
layer. In areas where there are a lot of points, and the scale doesn’t support
drawing them all clearly, I want to only display just the important ones (and
their labels) but as the user zooms in and the screen real-estate increases I
want to display more i.e. include the less important points. This is all doable
via the scale filters, but causes an undesirable issue in areas where there are
a low numbers of points – they only become visible when you are zoomed in. In
these areas I would like to be able to display the less important points at the
same time as limiting the display of points in the more congested areas to only
show the important ones. Any ideas on how to achieve this? Thanks Chris***
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