Imposm is an importer for OpenStreetMap data. It reads XML and PBF files and can import the data into PostgreSQL/PostGIS databases.
It is designed to create databases that are optimized for rendering/WMS services.
It is developed and supported by Omniscale, runs on Linux or Mac OS X and is released as open source under the Apache Software License 2.0.
See http://imposm.org/ for more information.
Changelog
2.6.0 2015-01-10
improve load performance of large limit-to geometries
check connection before reading and fail if unable to connect
new BoundaryPolygons mapping class that keeps inserted ways
quote column names when generalizing table
only skip import of polygons if way was inserted as multipolygon
only look for tables/views/indexes with schema=public when rotating tables
updated generated code for internal cache
minor fixes
2.5.0 2012-12-06
PostGIS 2 support
new –limit-to option to limit imports to polygons
added –quiet option that only logs progress once per minute
add StringIndex and Index mappings for PostgreSQL
always drop tables _and_ views with same name before creating new table/view. allows to change mappings from views to tables and vice versa.
internal refactoring to make support for non SQL databases easier
2.4.0 2012-03-30
new Class and Type field types
add support to disable automatic type column
new –connection option
support for PostGIS Trigram indices
do not try to simplify empty geometries
limit progress logging to 5 times per second
use SERIAL as primary key to support multiple features with the same OSM ID
new optional splitting of long line strings
use BIGINT for OSM ID in Postgres to support 64bit OSM IDs
2.3.2 2011-09-05
fixed –table-prefix
add –debug option for more verbose output
fixed way merging
fixed default_name_fields for UnionViews
improved (contains) relation builder
2.3.1 2011-07-05
DROP views instead of REPLACE to prevent errors when columns changed
2.3.0 2011-07-05
new PseudoArea field type
new Name and LocalizedName field type
update SRS in GeneralizedTables and UnionTables
new waterareas_gen0|1 in default style
new area field in landusages table
new meter_to_mapunit function to use same mapping for EPSG:4326 and projected SRS
2.2.0 2011-06-01
support for Shapely speedups (>=1.2.10)
new –port option for PostgreSQL port
reduced size of nodes cache by ~40%
store inserted ways in extra cache
support for relations type=boundary
new faster relation builder that supports relations with >1000 rings
set import options in mapping file
import_partial_relations=True/False
relation_builder=contains(new)/union(old)
imposm_multipolygon_report=60(seconds)
imposm_multipolygon_max_ring=0
2.1.3 2011-04-19
support for colons and other special chars in field and table names (e.g. de:name)
2.1.2 2011-04-13
make it work on 32bit systems
2.1.1 2011-04-12
new --proj option to change DB projection from EPSG:900913
abort if there are existing cache files
new --merge-cache and --overwrite-cache options
2.1.0 2011-03-29
first open source release
1 maintainer
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