Felipe, Pasting some of the code you are currently working with might help me and other mapnik users better understand your problem.
It seems you've got a graphic symbol that represents a dynamically located point placed by a user who has interacted with an OpenLayers Map. You need to figure out how to plot that symbol on your mapnik OSM tiles and then re-render them for printable output. Perhaps you can use OpenLayers to get the lon/lat of your screen coordinate graphic location then post that feature to Featureserver (or just a python script using psycopg2 to save the feature to postgis), to save that coordinate to a shapefile or postgis datasource. Then you can kick off a python script to generate a large single tile based on your OSM data and the FeatureServer datasource given the BBOX of the current OpenLayers map view. In your python script you would create a Shield or PointSymbolizer and append it to your map layers before rendering to symbolize your marker graphic. Hope that helps, Dane On Aug 26, 2008, at 8:38 AM, Felipe Reyes wrote: > Hi everyone, > > I'm working with OpenLayers for a web frontend, and the OSM data like > backend (using mod_tile for apache), but the user needs to save an > image > of the map that is seeing with the marker of the position where a mail > was delivered, currently I have a python script that generate the > image, > but still I cannot put the marker in the right place, I have the > coords, > but I don't know how to translate them to pixels units or use the > mapnik > api to put a custom image in a given coord and then render to image > > can somebody give me clue?, I been looking for docs, but there is a > lack, if I get the goal of do this I promise that I will write a > little > doc explaining how to do it. > > thanks in advance y thanks for giving us mapnik because it's so cool > -- > Felipe Reyes A. <[EMAIL PROTECTED]> > Open Fountain > Av. Santa María #2670, Oficina 501 > Providencia, Santiago de Chile > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
