Metadata-Version: 1.0
Name: Shapely
Version: 1.0rc1
Summary: Geospatial geometries, predicates, and operations
Home-page: http://trac.gispython.org/projects/PCL/wiki/Shapely
Author: Sean Gillies
Author-email: sgillies@frii.com
License: BSD
Description: Shapely
        =======
        
        Shapely is a Python package for programming with 2D geospatial geometries. It
        is based on GEOS (http://geos.refractions.net). Shapely 1.0 is ignorant about
        coordinate and reference systems. Projection responsibility is left to specific
        applications. For more information, see:
        
        * Shapely wiki_
        * Shapely manual_
        
        Shapely requires Python 2.4+. (I've also begun to port it to Python 3.0:
        http://zcologia.com/news/564/shapely-for-python-3-0/.)
        
        
        Dependencies
        ------------
        
        * libgeos_c (2.2.3 or 3.0.0+)
        * Python ctypes_ (standard in Python 2.5+)
        
        .. _ctypes: http://pypi.python.org/pypi/ctypes/
        
        
        Installation
        ------------
        
        Shapely can be installed from the Python package index::
        
        $ sudo easy_install Shapely
        
        with the setup script::
        
        $ sudo python setup.py install
        
        or by using the development buildout on Linux, which also provides libgeos_c::
        
        $ svn co http://svn.gispython.org/svn/gispy/buildout/shapely.buildout/trunk shapely.buildout
        $ cd shapely.buildout
        $ python bootstrap.py
        $ ./bin/buildout
        
        
        Usage
        -----
        
        To buffer a point::
        
        >>> from shapely.geometry import Point
        >>> point = Point(-106.0, 40.0) # longitude, latitude
        >>> point.buffer(10.0)
        <shapely.geometry.polygon.Polygon object at ...>
        
        See the manual_ for comprehensive examples of usage. See also Operations.txt
        and Predicates.txt under tests/ for more examples of the spatial operations and
        predicates provided by Shapely. See also Point.txt, LineString.txt, etc for
        examples of the geometry APIs.
        
        
        Numpy integration
        -----------------
        
        All Shapely geometry instances provide the Numpy array interface::
        
        >>> from numpy import asarray
        >>> a = asarray(point)
        >>> a.size
        3
        >>> a.shape
        (2,)
        
        Numpy arrays can also be adapted to Shapely points and linestrings::
        
        >>> from shapely.geometry import asLineString
        >>> a = array([[1.0, 2.0], [3.0, 4.0]])
        >>> line = asLineString(a)
        >>> line.wkt
        'LINESTRING (1.0000000000000000 2.0000000000000000, 3.0000000000000000 4.0000000000000000)'
        
        
        Python Geo Interface
        --------------------
        
        Any object that provides the Python geo interface can be adapted to a Shapely
        geometry with the asShape factory::
        
        >>> d = {"type": "Point", "coordinates": (0.0, 0.0)}
        >>> from shapely.geometry import asShape
        >>> shape = asShape(d)
        >>> shape.geom_type
        'Point'
        >>> tuple(shape.coords)
        ((0.0, 0.0),)
        
        >>> class GeoThing(object):
        ...     def __init__(self, d):
        ...         self.__geo_interface__ = d
        >>> thing = GeoThing({"type": "Point", "coordinates": (0.0, 0.0)})
        >>> shape = asShape(thing)
        >>> shape.geom_type
        'Point'
        >>> tuple(shape.coords)
        ((0.0, 0.0),)
        
        See http://trac.gispython.org/projects/PCL/wiki/PythonGeoInterface for more
        details on the interface.
        
        
        Testing
        -------
        
        Several of the modules have docstring doctests::
        
        $ cd shapely
        $ python point.py
        
        There are also two test runners under tests/. test_doctests.py requires
        zope.testing. runalldoctests.py does not. Perhaps the easiest way to run the
        tests is::
        
        $ python setup.py test
        
        
        Support
        -------
        
        For current information about this project, see the wiki_.
        
        .. _wiki: http://trac.gispython.org/projects/PCL/wiki/Shapely
        .. _manual: http://gispython.org/shapely/manual.html
        
        If you have questions, please consider joining our community list:
        
        http://trac.gispython.org/projects/PCL/wiki/CommunityList
        
        
        Credits
        -------
        
        Sean Gillies (Pleiades)
        Howard Butler (Hobu, Inc.)
        Kai Lautaportti (Hexagon IT)
        Frederic Junod (Camptocamp SA)
        Eric Lemoine (Camptocamp SA)
        Justin Bronn (GeoDjango) for ctypes inspiration
        Artem Pavlenko (Mapnik) for help with GEOS DLLs
        
        Some of this work was supported by a grant (Pleiades) from the U.S. National
        Endowment for the Humanities (http://www.neh.gov).
        
        
Keywords: geometry topology
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Science/Research
Classifier: License :: OSI Approved :: BSD License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Topic :: Scientific/Engineering :: GIS
