mirrors/django
1
0
Fork 0
mirror of https://github.com/django/django.git synced 2025-10-23 21:59:11 +00:00
Code Issues 32 Releases Wiki Activity

[1.5.X] Fixed more broken links. refs #19516

Browse Source 
Backport of 9c5a6adf33 from master
This commit is contained in:
Tim Graham
2012-12-25 03:40:08 -05:00
parent 8738da03c6
commit 1c1df12388
9 changed files with 65 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
docs/ref/contrib/gis/gdal.txt
View File

@@ -13,7 +13,7 @@ of GDAL is the `OGR`__ Simple Features Library, which specializes
in reading and writing vector geographic data in a variety of standard
formats.
GeoDjango provides a high-level Python interface for some of the
GeoDjango provides a high-level Python interface for some of the
capabilities of OGR, including the reading and coordinate transformation
of vector spatial data.
@@ -22,7 +22,7 @@ of vector spatial data.
Although the module is named ``gdal``, GeoDjango only supports
some of the capabilities of OGR. Thus, none of GDAL's features
with respect to raster (image) data are supported at this time.
__ http://www.gdal.org/
__ http://www.gdal.org/ogr/
@@ -68,13 +68,13 @@ each feature in that layer.
also supports a variety of more complex data sources, including
databases, that may be accessed by passing a special name string instead
of a path. For more information, see the `OGR Vector Formats`__
documentation. The :attr:`name` property of a ``DataSource``
documentation. The :attr:`name` property of a ``DataSource``
instance gives the OGR name of the underlying data source that it is
using.
Once you've created your ``DataSource``, you can find out how many
layers of data it contains by accessing the :attr:`layer_count` property,
or (equivalently) by using the ``len()`` function. For information on
Once you've created your ``DataSource``, you can find out how many
layers of data it contains by accessing the :attr:`layer_count` property,
or (equivalently) by using the ``len()`` function. For information on
accessing the layers of data themselves, see the next section::
>>> from django.contrib.gis.gdal import DataSource
@@ -105,7 +105,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
Python container of ``Layer`` objects. For example, you can access a
specific layer by its index (e.g. ``ds[0]`` to access the first
layer), or you can iterate over all the layers in the container in a
``for`` loop. The ``Layer`` itself acts as a container for geometric
``for`` loop. The ``Layer`` itself acts as a container for geometric
features.
Typically, all the features in a given layer have the same geometry type.
@@ -120,7 +120,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
The example output is from the cities data source, loaded above, which
evidently contains one layer, called ``"cities"``, which contains three
point features. For simplicity, the examples below assume that you've
point features. For simplicity, the examples below assume that you've
stored that layer in the variable ``layer``::
>>> layer = ds[0]
@@ -169,7 +169,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
>>> [ft.__name__ for ft in layer.field_types]
['OFTString', 'OFTReal', 'OFTReal', 'OFTDate']
.. attribute:: field_widths
Returns a list of the maximum field widths for each of the fields in
@@ -181,7 +181,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
.. attribute:: field_precisions
Returns a list of the numeric precisions for each of the fields in
this layer. This is meaningless (and set to zero) for non-numeric
this layer. This is meaningless (and set to zero) for non-numeric
fields::
>>> layer.field_precisions
@@ -189,7 +189,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
.. attribute:: extent
Returns the spatial extent of this layer, as an :class:`Envelope`
Returns the spatial extent of this layer, as an :class:`Envelope`
object::
>>> layer.extent.tuple
@@ -214,7 +214,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
Property that may be used to retrieve or set a spatial filter for this
layer. A spatial filter can only be set with an :class:`OGRGeometry`
instance, a 4-tuple extent, or ``None``. When set with something
instance, a 4-tuple extent, or ``None``. When set with something
other than ``None``, only features that intersect the filter will be
returned when iterating over the layer::
@@ -258,9 +258,9 @@ __ http://www.gdal.org/ogr/ogr_formats.html
given capability (a string). Examples of valid capability strings
include: ``'RandomRead'``, ``'SequentialWrite'``, ``'RandomWrite'``,
``'FastSpatialFilter'``, ``'FastFeatureCount'``, ``'FastGetExtent'``,
``'CreateField'``, ``'Transactions'``, ``'DeleteFeature'``, and
``'CreateField'``, ``'Transactions'``, ``'DeleteFeature'``, and
``'FastSetNextByIndex'``.
``Feature``
-----------
@@ -295,14 +295,14 @@ __ http://www.gdal.org/ogr/ogr_formats.html
Returns the type of geometry for this feature, as an :class:`OGRGeomType`
object. This will be the same for all features in a given layer, and
is equivalent to the :attr:`Layer.geom_type` property of the
:class:`Layer`` object the feature came from.
is equivalent to the :attr:`Layer.geom_type` property of the
:class:`Layer` object the feature came from.
.. attribute:: num_fields
Returns the number of fields of data associated with the feature.
This will be the same for all features in a given layer, and is
equivalent to the :attr:`Layer.num_fields` property of the
equivalent to the :attr:`Layer.num_fields` property of the
:class:`Layer` object the feature came from.
.. attribute:: fields
@@ -350,7 +350,7 @@ __ http://www.gdal.org/ogr/ogr_formats.html
.. attribute:: type
Returns the OGR type of this field, as an integer. The
``FIELD_CLASSES`` dictionary maps these values onto
``FIELD_CLASSES`` dictionary maps these values onto
subclasses of ``Field``::
>>> city['Density'].type
@@ -365,8 +365,8 @@ __ http://www.gdal.org/ogr/ogr_formats.html
.. attribute:: value
Returns the value of this field. The ``Field`` class itself
returns the value as a string, but each subclass returns the
Returns the value of this field. The ``Field`` class itself
returns the value as a string, but each subclass returns the
value in the most appropriate form::
>>> city['Population'].value
@@ -433,10 +433,10 @@ OGR Geometries
``OGRGeometry``
---------------
:class:`OGRGeometry` objects share similar functionality with
:class:`OGRGeometry` objects share similar functionality with
:class:`~django.contrib.gis.geos.GEOSGeometry` objects, and are thin
wrappers around OGR's internal geometry representation. Thus,
they allow for more efficient access to data when using :class:`DataSource`.
wrappers around OGR's internal geometry representation. Thus,
they allow for more efficient access to data when using :class:`DataSource`.
Unlike its GEOS counterpart, :class:`OGRGeometry` supports spatial reference
systems and coordinate transformation::
@@ -446,10 +446,10 @@ systems and coordinate transformation::
.. class:: OGRGeometry(geom_input[, srs=None])
This object is a wrapper for the `OGR Geometry`__ class.
These objects are instantiated directly from the given ``geom_input``
These objects are instantiated directly from the given ``geom_input``
parameter, which may be a string containing WKT, HEX, GeoJSON, a ``buffer``
containing WKB data, or an :class:`OGRGeomType` object. These objects
are also returned from the :class:`Feature.geom` attribute, when
are also returned from the :class:`Feature.geom` attribute, when
reading vector data from :class:`Layer` (which is in turn a part of
a :class:`DataSource`).
@@ -557,14 +557,14 @@ systems and coordinate transformation::
.. attribute:: srid
Returns or sets the spatial reference identifier corresponding to
Returns or sets the spatial reference identifier corresponding to
:class:`SpatialReference` of this geometry. Returns ``None`` if
there is no spatial reference information associated with this
geometry, or if an SRID cannot be determined.
.. attribute:: geos
Returns a :class:`~django.contrib.gis.geos.GEOSGeometry` object
Returns a :class:`~django.contrib.gis.geos.GEOSGeometry` object
corresponding to this geometry.
.. attribute:: gml
@@ -762,9 +762,9 @@ systems and coordinate transformation::
.. attribute:: z
Returns a list of Z coordinates in this line, or ``None`` if the
Returns a list of Z coordinates in this line, or ``None`` if the
line does not have Z coordinates::
>>> OGRGeometry('LINESTRING (1 2 3,4 5 6)').z
[3.0, 6.0]
@@ -885,7 +885,7 @@ Coordinate System Objects
Spatial reference objects are initialized on the given ``srs_input``,
which may be one of the following:
* OGC Well Known Text (WKT) (a string)
* EPSG code (integer or string)
* PROJ.4 string
@@ -912,7 +912,7 @@ Coordinate System Objects
.. method:: __getitem__(target)
Returns the value of the given string attribute node, ``None`` if the node
doesn't exist. Can also take a tuple as a parameter, (target, child),
doesn't exist. Can also take a tuple as a parameter, (target, child),
where child is the index of the attribute in the WKT. For example::
>>> wkt = 'GEOGCS["WGS 84", DATUM["WGS_1984, ... AUTHORITY["EPSG","4326"]]')
@@ -1011,7 +1011,7 @@ Coordinate System Objects
.. attribute:: units
Returns a 2-tuple of the units value and the units name,
Returns a 2-tuple of the units value and the units name,
and will automatically determines whether to return the linear
or angular units.
@@ -1073,7 +1073,7 @@ Coordinate System Objects
.. class:: CoordTransform(source, target)
Represents a coordinate system transform. It is initialized with two
Represents a coordinate system transform. It is initialized with two
:class:`SpatialReference`, representing the source and target coordinate
systems, respectively. These objects should be used when performing
the same coordinate transformation repeatedly on different geometries::