Hi there. I'm quite new working with openlayers. I spent the last couple of days working on something and it is driving me nuts. :) I want to visualize realtime data from a database as a track. To do this I am constantly (every 5 seconds) reading data from the DB as LINESTRING(), and parse it using "OpenLayers.Layer.GML()" and "format: OpenLayers.Format.WKT". This does work, but what i do now is I remove the "old" layer and the create a new layer with updated data the way described above. This a) leads to a flicker and b) produces more overhead than necessary. I would like to rather add new data to the existing layer gradually. I tried to only retrieve data from the DB that changed after the last request parse it as a feature and add it to the layer using .addFeatures(), but I did not succeed. Is there any example page that deals with this? I searched the web, the OL-website and the OL-example-page without success. Please help,
Gerrit _______________________________________________ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
