I've been trying to implement dynamically updated markers with
openlayers, but this subject is difficult to cover.
My plans includes ajax scripting, where I manage to do periodical
execution of function. In that function my plans would include following
layer firing:
newl = new OpenLayers.Layer.Text( "Realtime data", {location:
"textfile2.txt", projection: new OpenLayers.Projection("EPSG:4326") } );
(Where I would replace textfile2.txt with PHP script, which reads values
from database and produces correctly formated output).
But how do I refresh marker layer to reflect (and refresh) periodically
generated (new) state of marker locations?
I've tried: map.addLayer(newl); and map.redraw(newl); with no success.
All I managed to do so far, is 'at start' initiated drawing of markers,
but further refreshing of those markers and their position have been
problem.
Any idea ?
Regards,
Pasi
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