1ogr2ogr(1) General Commands Manual ogr2ogr(1)
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6 ogr2ogr - .TH "ogr2ogr" 1 "Fri Apr 22 2011" "GDAL"
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9 ogr2ogr - converts simple features data between file formats
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12 Usage: ogr2ogr [--help-general] [-skipfailures] [-append] [-update] [-gt n]
13 [-select field_list] [-where restricted_where]
14 [-progress] [-sql <sql statement>] [-dialect dialect]
15 [-preserve_fid] [-fid FID]
16 [-spat xmin ymin xmax ymax] [-wrapdateline]
17 [-clipsrc [xmin ymin xmax ymax]|WKT|datasource|spat_extent]
18 [-clipsrcsql sql_statement] [-clipsrclayer layer]
19 [-clipsrcwhere expression]
20 [-clipdst [xmin ymin xmax ymax]|WKT|datasource]
21 [-clipdstsql sql_statement] [-clipdstlayer layer]
22 [-clipdstwhere expression]
23 [-a_srs srs_def] [-t_srs srs_def] [-s_srs srs_def]
24 [-f format_name] [-overwrite] [[-dsco NAME=VALUE] ...]
25 [-segmentize max_dist] [-fieldTypeToString All|(type1[,type2]*)]
26 dst_datasource_name src_datasource_name
27 [-lco NAME=VALUE] [-nln name] [-nlt type] [layer [layer ...]]
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30 This program can be used to convert simple features data between file
31 formats performing various operations during the process such as
32 spatial or attribute selections, reducing the set of attributes,
33 setting the output coordinate system or even reprojecting the features
34 during translation.
35 -f format_name:
37 output file format name (default is ESRI Shapefile), some possible
38 values are:
39 -f "ESRI Shapefile"
41 -f "TIGER"
42 -f "MapInfo File"
43 -f "GML"
44 -f "PostgreSQL"
45 -append:
48 Append to existing layer instead of creating new
49 -overwrite:
51 Delete the output layer and recreate it empty
52 -update:
54 Open existing output datasource in update mode rather than trying
55 to create a new one
56 -select field_list:
58 Comma-delimited list of fields from input layer to copy to the new
59 layer. A field is skipped if mentioned previously in the list even
60 if the input layer has duplicate field names. (Defaults to all; any
61 field is skipped if a subsequent field with same name is found.)
62 -progress:
64 (starting with GDAL 1.7.0) Display progress on terminal. Only works
65 if input layers have the 'fast feature count' capability.
66 -sql sql_statement:
68 SQL statement to execute. The resulting table/layer will be saved
69 to the output.
70 -dialect dialect:
72 SQL dialect. In some cases can be used to use (unoptimized) OGR SQL
73 instead of the native SQL of an RDBMS by passing OGRSQL.
74 -wrapdateline:
76 (starting with GDAL 1.7.0) split geometries crossing the dateline
77 meridian (long. = +/- 180deg)
78 -where restricted_where:
80 Attribute query (like SQL WHERE)
81 -skipfailures:
83 Continue after a failure, skipping the failed feature.
84 -gt n:
86 group n features per transaction (default 200)
87 -spat xmin ymin xmax ymax:
89 spatial query extents. Only features whose geometry intersects the
90 extents will be selected. The geometries will not be clipped unless
91 -clipsrc is specified
92 -clipsrc [xmin ymin xmax ymax]|WKT|datasource|spat_extent:
94 (starting with GDAL 1.7.0) clip geometries to the specified
95 bounding box (expressed in source SRS), WKT geometry (POLYGON or
96 MULTIPOLYGON), from a datasource or to the spatial extent of the
97 -spat option if you use the spat_extent keyword. When specifying a
98 datasource, you will generally want to use it in combination of the
99 -clipsrclayer, -clipsrcwhere or -clipsrcsql options
100 -clipsrcsql sql_statement:
102 Select desired geometries using an SQL query instead.
103 -clipsrclayer layername:
105 Select the named layer from the source clip datasource.
106 -clipsrcwhere expression:
108 Restrict desired geometries based on attribute query.
109 -clipdst xmin ymin xmax ymax:
111 (starting with GDAL 1.7.0) clip geometries after reprojection to
112 the specified bounding box (expressed in dest SRS), WKT geometry
113 (POLYGON or MULTIPOLYGON) or from a datasource. When specifying a
114 datasource, you will generally want to use it in combination of the
115 -clipdstlayer, -clipdstwhere or -clipdstsql options
116 -clipdstsql sql_statement:
118 Select desired geometries using an SQL query instead.
119 -clipdstlayer layername:
121 Select the named layer from the destination clip datasource.
122 -clipdstwhere expression:
124 Restrict desired geometries based on attribute query.
125 -dsco NAME=VALUE:
127 Dataset creation option (format specific)
128 -lco NAME=VALUE:
130 Layer creation option (format specific)
131 -nln name:
133 Assign an alternate name to the new layer
134 -nlt type:
136 Define the geometry type for the created layer. One of NONE,
137 GEOMETRY, POINT, LINESTRING, POLYGON, GEOMETRYCOLLECTION,
138 MULTIPOINT, MULTIPOLYGON or MULTILINESTRING. Add '25D' to the name
139 to get 2.5D versions.
140 -a_srs srs_def:
142 Assign an output SRS
143 -t_srs srs_def:
145 Reproject/transform to this SRS on output
146 -s_srs srs_def:
148 Override source SRS
149 -fid fid:
151 If provided, only the feature with this feature id will be
152 reported. Operates exclusive of the spatial or attribute queries.
153 Note: if you want to select several features based on their feature
154 id, you can also use the fact the 'fid' is a special field
155 recognized by OGR SQL. So, '-where 'fid in (1,3,5)'' would select
156 features 1, 3 and 5.
157 -segmentize max_dist:
159 (starting with GDAL 1.6.0) maximum distance between 2 nodes. Used
160 to create intermediate pointsspatial query extents
161 -fieldTypeToString type1, ...:
163 (starting with GDAL 1.7.0) converts any field of the specified type
164 to a field of type string in the destination layer. Valid types are
165 : Integer, Real, String, Date, Time, DateTime, Binary, IntegerList,
166 RealList, StringList. Special value All can be used to convert all
167 fields to strings. This is an alternate way to using the CAST
168 operator of OGR SQL, that may avoid typing a long SQL query.
169 Srs_def can be a full WKT definition (hard to escape properly), or a
171 well known definition (ie. EPSG:4326) or a file with a WKT definition.
172 Example appending to an existing layer (both flags need to be used):
174 % ogr2ogr -update -append -f PostgreSQL PG:dbname=warmerda abc.tab
176 Example reprojecting from ETRS_1989_LAEA_52N_10E to EPSG:4326 and
178 clipping to a bounding box
179 % ogr2ogr -wrapdateline -t_srs EPSG:4326 -clipdst -5 40 15 55 france_4326.shp europe_laea.shp
181 More examples are given in the individual format pages.
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185 Frank Warmerdam <warmerdam@pobox.com>, Silke Reimer
186 <silke@intevation.de>
187GDAL Fri Apr 22 2011 ogr2ogr(1)