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DataSource is a wrapper for the OGR Data Source object, which provides
an interface for reading vector geometry data from many different file
formats (including ESRI shapefiles).
When instantiating a DataSource object, use the filename of a
GDAL-supported data source. For example, a SHP file or a
TIGER/Line file from the government.
The ds_driver keyword is used internally when a ctypes pointer
is passed in directly.
Example:
ds = DataSource('/home/foo/bar.shp')
for layer in ds:
for feature in layer:
# Getting the geometry for the feature.
g = feature.geom
# Getting the 'description' field for the feature.
desc = feature['description']
# We can also increment through all of the fields
# attached to this feature.
for field in feature:
# Get the name of the field (e.g. 'description')
nm = field.name
# Get the type (integer) of the field, e.g. 0 => OFTInteger
t = field.type
# Returns the value the field; OFTIntegers return ints,
# OFTReal returns floats, all else returns string.
val = field.value
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OGRIndexError( t Layer( t ds( t force_bytest
force_text( t six( t xranget
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s Wraps an OGR Data Source object.s utf-8c C s( | r d | _ n d | _ | | _ t j � s= t j � n t | t j � r� t j � } y( t j
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d | � � d S( Ni i s% Could not open the datasource at "%s"s" Invalid data source input type: %ss Invalid data source file "%s"( t _writet encodingt capit get_driver_countt register_allt
isinstanceR t string_typesR t ptr_typet open_dsR R R t typet boolt ptrt driver( t selft ds_inputt ds_drivert writeR
R ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt __init__< s&
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$ c C s | j r t j | j � n d S( s# Destroys this DataStructure object.N( t _ptrR t
destroy_ds( R ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt __del__` s c c s' x t | j � D] } | | Vq Wd S( s6 Allows for iteration over the layers in a data source.N( R
t layer_count( R t i( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt __iter__d s c C s� t | t j � rI t j | j t | � � } | s� t d | � � q� ng t | t � r� | d k ss | | j k r� t d � � n t j
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| � � � t | | � S( s@ Allows use of the index [] operator to get a layer at the index.s" invalid OGR Layer name given: "%s"i s index out of ranges Invalid index type: %s( R R R R t get_layer_by_nameR R R t intR! t get_layerR t TypeErrorR R ( R t indext l( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt __getitem__i s c C s | j S( s4 Returns the number of layers within the data source.( R! ( R ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt __len__v s c C s d | j t | j � f S( s3 Returns OGR GetName and Driver for the Data Source.s %s (%s)( t namet strR ( R ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt __str__z s c C s t j | j � S( s0 Returns the number of layers in the data source.( R t get_layer_countR ( R ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyR! ~ s c C s( t j | j � } t | | j d t �S( s$ Returns the name of the data source.t strings_only( R t get_ds_nameR R R
t True( R R, ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyR, � s (
t __name__t
__module__t __doc__t FalseR R R# R* R+ R. t propertyR! R, ( ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyR 8 s $
N( R5 t ctypesR t django.contrib.gis.gdal.baseR t django.contrib.gis.gdal.driverR t django.contrib.gis.gdal.errorR R t django.contrib.gis.gdal.layerR t" django.contrib.gis.gdal.prototypesR R t django.utils.encodingR R t django.utilsR t django.utils.six.movesR
R ( ( ( sD /tmp/pip-install-XxeQeY/django/django/contrib/gis/gdal/datasource.pyt <module># s