Vector Data Processing - Open Source Geospatial Tools: Applications in Earth Observation - page 29

-clipsrcwhere expression
Restrict desired geometries based on attribute query.
-clipdst xmin ymin xmax ymax
(starting with GDAL 1.7.0) clip geometries after reprojection to the specified
bounding box (expressed in dest SRS), WKT geometry (POLYGON or MUL-
TIPOLYGON) or from a datasource. When specifying a datasource, you will
generally want to use it in combination of the -clipdstlayer, -clipdstwhere or
-clipdstsql options
-clipdstsql sql_statement
Select desired geometries using an SQL query instead.
-clipdstlayer layername
Select the named layer from the destination clip datasource.
-clipdstwhere expression
Restrict desired geometries based on attribute query.
-wrapdateline
(starting with GDAL 1.7.0) split geometries crossing the dateline meridian (long.
=+ / − 180deg)

-datelineoffset
(starting with GDAL 1.10) offset from dateline in degrees (default long.

=+ / −

10deg, geometries within 170deg to -170deg will be splited)
-simplify tolerance
(starting with GDAL 1.9.0) distance tolerance for simplification. Note: the algo-
rithm used preserves topology per feature, in particular for polygon geometries,
but not for a whole layer.
-segmentize max_dist
(starting with GDAL 1.6.0) maximum distance between 2 nodes. Used to create
intermediate points
-fieldTypeToString type1, ...
(starting with GDAL 1.7.0) converts any field of the specified type to a field of
type string in the destination layer. Valid types are : Integer, Real, String, Date,
Time, DateTime, Binary, IntegerList, RealList, StringList. Special value All can
be used to convert all fields to strings. This is an alternate way to using the CAST
operator of OGR SQL, that may avoid typing a long SQL query.
-unsetFieldWidth
(starting with GDAL 2.0) set field width and precision to 0.
-splitlistfields
(starting with GDAL 1.8.0) split fields of type StringList, RealList or IntegerList
into as many fields of type String, Real or Integer as necessary.
-maxsubfields val
To be combined with -splitlistfields to limit the number of subfields created for
each split field.
-explodecollections
(starting with GDAL 1.8.0) produce one feature for each geometry in any kind
of geometry collection in the source file