Created
July 22, 2012 03:16
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OpenStreetMap to KML conversion script
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| __author__ = 'Richard Lincoln, r.w.lincoln@gmail.com' | |
| import sys | |
| from optparse import OptionParser | |
| from xml.etree.ElementTree import \ | |
| parse, Element, SubElement, ElementTree, register_namespace | |
| KML_NS = 'http://www.opengis.net/kml/2.2' | |
| def osm2kml(osm_path, kml_path, nodes=True, ways=True, fmt=False): | |
| register_namespace('', KML_NS) | |
| osm_tree = parse(osm_path) | |
| osm_root = osm_tree.getroot() | |
| kml_root = Element('{%s}kml' % KML_NS) | |
| kml_doc = SubElement(kml_root, '{%s}Document' % KML_NS) | |
| node_map = {} | |
| for node in osm_root.findall('node'): | |
| lon_lat = (node.get('lon'), node.get('lat')) | |
| node_map[node.get('id')] = lon_lat | |
| if nodes: | |
| for node_id, lon_lat in node_map.iteritems(): | |
| mark = SubElement(kml_doc, '{%s}Placemark' % KML_NS) | |
| point = SubElement(mark, '{%s}Point' % KML_NS) | |
| SubElement(point, '{%s}name' % KML_NS).text = node_id | |
| coords = SubElement(point, '{%s}coordinates' % KML_NS) | |
| coords.text = '%s,%s,0' % lon_lat | |
| if ways: | |
| for way in osm_root.findall('way'): | |
| mark = SubElement(kml_doc, '{%s}Placemark' % KML_NS) | |
| way_id = way.get('id') | |
| SubElement(mark, '{%s}name' % KML_NS).text = way_id | |
| linestring = SubElement(mark, '{%s}LineString' % KML_NS) | |
| coords = SubElement(linestring, '{%s}coordinates' % KML_NS) | |
| coords_text = '' | |
| for nd in way.findall('nd'): | |
| ref = nd.get('ref') | |
| lon_lat = node_map.get(ref) | |
| if lon_lat is not None: | |
| coords_text += ' %s,%s,0' % lon_lat | |
| else: | |
| print 'Missing node: %s (%s)' % (ref, way_id) | |
| coords.text = coords_text | |
| if fmt: indent(kml_root) | |
| kml_tree = ElementTree(kml_root) | |
| kml_tree.write(kml_path, encoding='utf-8', xml_declaration=True) | |
| def indent(elem, level=0): | |
| i = '\n' + level*' ' | |
| if len(elem): | |
| if not elem.text or not elem.text.strip(): | |
| elem.text = i + ' ' | |
| if not elem.tail or not elem.tail.strip(): | |
| elem.tail = i | |
| for elem in elem: | |
| indent(elem, level+1) | |
| if not elem.tail or not elem.tail.strip(): | |
| elem.tail = i | |
| else: | |
| if level and (not elem.tail or not elem.tail.strip()): | |
| elem.tail = i | |
| def main(argv=sys.argv[1:]): | |
| parser = OptionParser( | |
| usage='usage: osm2kml osm_file [kml_file] [options]') | |
| parser.add_option('--skip-nodes', action='store_true', default=False, | |
| help='do not include nodes in conversion') | |
| parser.add_option('--skip-ways', action='store_true', default=False, | |
| help='do not include ways in conversion') | |
| parser.add_option('--format-output', action='store_true', default=False, | |
| dest='format', help='format and indent XML output (experimental)') | |
| opts, args = parser.parse_args(argv) | |
| nargs = len(args) | |
| if nargs == 0: | |
| parser.print_usage() | |
| sys.exit(1) | |
| elif nargs == 1: | |
| osm_path = args[0] | |
| if osm_path.lower().endswith('.osm'): | |
| kml_path = osm_path[:-4] + '.kml' | |
| else: | |
| kml_path = osm_path + '.kml' | |
| elif nargs == 2: | |
| osm_path = args[0] | |
| kml_path = args[1] if len(argv) > 1 else (osm_path[:-3] + 'kml') | |
| else: | |
| print 'Too many arguments' | |
| parser.print_usage() | |
| sys.exit(1) | |
| osm2kml(osm_path, kml_path, not opts.skip_nodes, not opts.skip_ways, | |
| opts.format) | |
| if __name__ == '__main__': | |
| main() |
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