I want to implement a WMS like Google GTrafficOverlay with Geoserver and
OpenLayers.
I projected the road to 900913, so the road can overlay on google satellite
layer. When the map in large scale, it looks like Google GTrafficOverlay.
http://www.nabble.com/file/p19405581/overlay%2Bin%2Blarge%2Bscale.jpeg
But when in small scale(above 1:27035), my traffic over layer look uglily.
http://www.nabble.com/file/p19405581/overlay%2Bin%2Bsmall%2Bscale.bmp
You can see the up lane and down lane overlay each other, but the Google
GTrafficOverlay still look good.
http://www.nabble.com/file/p19405581/Google%2BGTrafficOverlay%2B.bmp
http://www.nabble.com/file/p19405581/Google%2BGTrafficOverlay%2B2.jpeg
I found there's no css style element in SLD can make a line stroke do not
overlay each other. And I also found Mapserver also can't do this.
So, In order to make a such road line looking, do I need to implement a SLD
CssParameter and modify the Geotools?
In fact, I am a new guy to Geoserver/Geotools, this mission seems a little
harder to me.....
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