3
7^B                 @   s   d Z ddlmZmZmZ ddlmZ ddlm	Z	 ddl
mZmZ ddlmZmZ ddlmZmZ ddlmZ dd	lmZ G d
d deZG dd deZG dd deeZG dd deZeeeeeeefe_dS )zy
 This module houses the Geometry Collection objects:
 GeometryCollection, MultiPoint, MultiLineString, and MultiPolygon
    )byrefc_intc_uint)
prototypes)GEOSException)GEOSGeometryLinearGeometryMixin)GEOM_PTRgeos_version_tuple)
LinearRing
LineString)Point)Polygonc                   sx   e Zd ZdZ fddZdd Zdd Zdd	 Zd
d Zdd Z	dd Z
ejZejZedd Zedd ZeZ  ZS )GeometryCollection   c                s`   t |dkr.t|d ttfr(|d }q2|}n|}| j| | jt ||}t j|f| dS )zEInitialize a Geometry Collection from a sequence of Geometry objects.   r   N)len
isinstancetuplelistZ_check_allowed_create_collectionsuper__init__)selfargskwargsZ
init_geomsZ
collection)	__class__ E/tmp/pip-build-8app2_gc/Django/django/contrib/gis/geos/collections.pyr      s    

zGeometryCollection.__init__c             c   s$   xt t| D ]}| | V  qW dS )z-Iterate over each Geometry in the Collection.N)ranger   )r   ir   r   r   __iter__(   s    zGeometryCollection.__iter__c             C   s   | j S )z3Return the number of geometries in this Collection.)Znum_geom)r   r   r   r   __len__-   s    zGeometryCollection.__len__c             C   s2   t | dd |D  }tjt| jt|t|S )Nc             S   s   g | ]}t jt|d |qS )ptr)capi
geom_clonegetattr).0gr   r   r   
<listcomp>7   s    z9GeometryCollection._create_collection.<locals>.<listcomp>)r	   r$   Zcreate_collectionr   _typeidr   r   )r   lengthitemsZgeomsr   r   r   r   2   s    z%GeometryCollection._create_collectionc             C   s   t j| j|S )N)r$   Z	get_geomnr#   )r   indexr   r   r   _get_single_internal;   s    z'GeometryCollection._get_single_internalc             C   s   t tj| j|| jdS )zFReturn the Geometry from this Collection at the given index (0-based).)srid)r   r$   r%   r.   r/   )r   r-   r   r   r   _get_single_external>   s    z'GeometryCollection._get_single_externalc             C   s2   | j }| j}| j||| _ |r$|| _tj| dS )zJCreate a new collection, and destroy the contents of the previous pointer.N)r#   r/   r   r$   Zdestroy_geom)r   r+   r,   Zprev_ptrr/   r   r   r   	_set_listC   s    zGeometryCollection._set_listc             C   s   ddj dd | D  S )z,Return the KML for this Geometry Collection.z!<MultiGeometry>%s</MultiGeometry> c             s   s   | ]}|j V  qd S )N)kml)r'   r(   r   r   r   	<genexpr>R   s    z)GeometryCollection.kml.<locals>.<genexpr>)join)r   r   r   r   r3   O   s    zGeometryCollection.kmlc             C   s   t dd | D S )zAReturn a tuple of all the coordinates in this Geometry Collectionc             s   s   | ]}|j V  qd S )N)r   )r'   r(   r   r   r   r4   W   s    z+GeometryCollection.tuple.<locals>.<genexpr>)r   )r   r   r   r   r   T   s    zGeometryCollection.tuple)__name__
__module____qualname__r*   r   r!   r"   r   r.   r0   r1   r   Z_set_single_rebuildZ_set_singleZ_assign_extended_slice_rebuildZ_assign_extended_slicepropertyr3   r   Zcoords__classcell__r   r   )r   r   r      s   		r   c               @   s   e Zd ZeZdZdS )
MultiPoint   N)r6   r7   r8   r   _allowedr*   r   r   r   r   r;   \   s   r;   c                   s,   e Zd ZeefZdZe fddZ  Z	S )MultiLineString   c                s   t  dk rtdt jS )N   r?   z.MultiLineString.closed requires GEOS >= 3.5.0.)r@   r?   )r
   r   r   closed)r   )r   r   r   rA   e   s    
zMultiLineString.closed)
r6   r7   r8   r   r   r=   r*   r9   rA   r:   r   r   )r   r   r>   a   s   r>   c               @   s   e Zd ZeZdZdS )MultiPolygon   N)r6   r7   r8   r   r=   r*   r   r   r   r   rB   l   s   rB   N)__doc__ctypesr   r   r   Zdjango.contrib.gis.geosr   r$   Zdjango.contrib.gis.geos.errorr   Z django.contrib.gis.geos.geometryr   r   Zdjango.contrib.gis.geos.libgeosr	   r
   Z"django.contrib.gis.geos.linestringr   r   Zdjango.contrib.gis.geos.pointr   Zdjango.contrib.gis.geos.polygonr   r   r;   r>   rB   r=   r   r   r   r   <module>   s   L