Michael,
Look into the VendorOptions "labelAllGroup", "repeat" and
"maxDisplacement" to fine-tune the repetition of names along your road
segments. It's a lot of going back and forth, so be patient to arrive at
the right values for each scale.
You might also be hitting the
issue, that at smaller scales, the road segments become too short to be
labeled. Fair enough, the VendorOption "group" gets you a long way, but
try grouping on the database side of things as well using the attributes
you use in the filters of your SLD (i.e. FRC) . Be sure to add the
admin area that the road segment is in to the "group by" clause, so you
won't be grouping road segments that have the same name across the
country into one group (e.g. the French equivalent of "High Street").
Thus you chain the road segments into longer pieces that fit your road
names, without loosing the attributes.
In a next step, you could
create another field to store abbreviations to shorten the road names as
well (e.g. Boulevard becomes Blvd and Avenue becomes Ave) and use this
field only to label the road segments at smaller scales.
Finally,
just using FRC in your filters does not give you a consistent road
network at all scales. Check out Net2Class as well. Particularly when
zoomed out completely, roads may seem to end nowhere if you only use
FRC.
You see, it's indeed a bit of database, a bit of style and then a bit of...
Regards,
Edward
Date: Mon, 5 Sep 2011 11:27:30 +0200
Subject: Re: [Geoserver-users] Optimization of Geoserver ( database + style + ?
)
From: [email protected]
To: [email protected]; [email protected]
CC: [email protected]
Yes I got It,
I 've carefully followed your advises :
I've created one table for all the roads, for all the wa, wl, lu, a8.
for all the table I've created an index for the frc field and the geom field.
It looks like that it is really better to use postgis with one table for all
the roads, one table for all the wa, ... than using multiple shape file .
Now, I've some problem to render properly the name of the street :
áá I really don't understand why, some road got a name and other don't have a
name ...
I had to zoom to see the name of the roads (and there is still not enough
road's name on the map) .
I don't understand how it works ? I discovered that more the police is little,
the more you see the road's name ... But still, not enough .....
On Fri, Sep 2, 2011 at 12:01 PM, Harikumar Reddy <[email protected]> wrote:
Hi,
You need specify which type of roads to be drawn at a particular mapscale. Find
attached sample SLD we are using with result wms screenshots of road for your
reference., The SLD is giving response wms image (jpeg) within 4-5 seconds
along with other layers (we need to still optimise the road style to get
response within 2-3 seconds).
You have written SLD for different scales but not mentioned what type of roads
to be drawn at particular scale (AFAIK by observing your SLD given).
Use filters like given below (check attached SLD to have complete idea). we
also has face many problems during SLD preparation.
As i am ex product engineer of TeleAtlas india, i have remembered their
attributes. you can use FRC/FOW/NET class as OGC filter parameter, which Edward
has already conveyed.
============================================
<Rule>
ááááááá </Rule>===============================================
I hope, it may help you.
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