Planet dumps as OSM data source through the osmosis command line Java application.
The file name (and path) of the planet dump
The path to the osmosis application
Osmosis is a command line Java application for processing OSM data. It allows, among other things, to extract data inside a bounding box or polygon from so called planet dumps. The usage of this source requires an installed osmosis; see http://wiki.openstreetmap.org/wiki/Osmosis.
center_bbox to retrieve:
all nodes that are inside a given bounding box and any relations that reference them;
all ways that reference at least one node that is inside a given bounding box, any relations that reference them [the ways], and any nodes outside the bounding box that the ways may reference;
all relations that reference one of the nodes or ways included due to the above rules (does not apply recursively);
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## Not run: ## Download and extract a planet file: download.file("http://osmar.r-forge.r-project.org/", "muenchen.osm.gz") system("gzip -d muenchen.osm.gz") ## Define osmosis source; note that we assume that ## osmosis is in our path environment variable (if ## not, set osmosis argument to the executable): src <- osmsource_osmosis(file = "muenchen.osm") ## Get the center of Munich: muc_bbox <- center_bbox(11.575278, 48.137222, 3000, 3000) muc <- get_osm(muc_bbox, src) muc ## End(Not run)
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