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This module houses the GEOSCoordSeq object, which is used internally
by GEOSGeometry to house the actual coordinates of the Point,
LineString, and LinearRing geometries.
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dd� Zdd� Zdd� Zdd� Zdd � Zd d � Zed d � �Zd!d"� Zd#d$� Zd%d&� Zd'd(� Zd)d*� Zd+d,� Zd-d.� Z d/d0� Z d1d2� Z d3d4� Z d5d6� Z d7d8� Z!ed9d:� �Z"ed;d<� �Z#ed=d>� �Z$d?d@� Z%edAdB� �Z&edCdD� �Z'edEdF� �Z(dGS )I� GEOSCoordSeqzGThe internal representation of a list of coordinates inside a Geometry.Fc C s" t |t�s td��|| _|| _dS )z Initialize from a GEOS pointer.z4Coordinate sequence should initialize with a CS_PTR.N)�
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� TypeError�_ptr�_z)�self�ptr�z� r �B/usr/lib/python3/dist-packages/django/contrib/gis/geos/coordseq.py�__init__ s
zGEOSCoordSeq.__init__c c s � t | j�D ]}| | V qdS )z3Iterate over each point in the coordinate sequence.N)�range�size)r �ir r r �__iter__ s � �zGEOSCoordSeq.__iter__c C � | j S )z7Return the number of points in the coordinate sequence.)r �r r r r �__len__ s zGEOSCoordSeq.__len__c C s
t | j�S )z<Return the string representation of the coordinate sequence.)�str�tupler r r r �__str__$ s
zGEOSCoordSeq.__str__c C s | � |� | �|�S )z8Return the coordinate sequence value at the given index.)� _checkindex�
_point_getter�r �indexr r r � __getitem__( s
zGEOSCoordSeq.__getitem__c C s| t |ttf�rn
trt |tj�rntd��| jdkr#| jr#d}| j}nd}| j }t
|�|kr2td��| � |� |||� dS )z5Set the coordinate sequence value at the given index.zBMust set coordinate with a sequence (list, tuple, or numpy array).� � z"Dimension of value does not match.N) r �listr r �ndarrayr �dimsr �
_set_point_3d�
_set_point_2d�lenr" )r r% �value�n_args� point_setterr r r � __setitem__- s
zGEOSCoordSeq.__setitem__c C s( d| kr | j k sn td| ��dS )zCheck the given index.r z invalid GEOS Geometry index: %sN)r �
IndexErrorr$ r r r r" C s �zGEOSCoordSeq._checkindexc C s |dk s|dkrt d| ��dS )zCheck the given dimension.r r( z invalid ordinate dimension "%d"Nr )r �dimr r r � _checkdimH s �zGEOSCoordSeq._checkdimc C � t �| j|tt� ��S �N)�capi�cs_getxr r r r$ r r r �_get_xM � zGEOSCoordSeq._get_xc C r6 r7 )r8 �cs_getyr r r r$ r r r �_get_yP r; zGEOSCoordSeq._get_yc C r6 r7 )r8 �cs_getzr r r r$ r r r �_get_zS r; zGEOSCoordSeq._get_zc C � t �| j||� d S r7 )r8 �cs_setxr �r r% r/ r r r �_set_xV � zGEOSCoordSeq._set_xc C r@ r7 )r8 �cs_setyr rB r r r �_set_yY rD zGEOSCoordSeq._set_yc C r@ r7 )r8 �cs_setzr rB r r r �_set_z\ rD zGEOSCoordSeq._set_zc C s | j dkr | jr | jS | jS )Nr' )r+ r �
_get_point_3d�
_get_point_2dr r r r r# _ s zGEOSCoordSeq._point_getterc C s | � |�| �|�fS r7 )r: r= r$ r r r rJ c rD zGEOSCoordSeq._get_point_2dc C s | � |�| �|�| �|�fS r7 )r: r= r? r$ r r r rI f s zGEOSCoordSeq._get_point_3dc C s$ |\}}| � ||� | �||� d S r7 )rC rF )r r% r/ �x�yr r r r- i s zGEOSCoordSeq._set_point_2dc C s2 |\}}}| � ||� | �||� | �||� d S r7 )rC rF rH )r r% r/ rK rL r r r r r, n s
zGEOSCoordSeq._set_point_3dc C s, | � |� | �|� t�| j||tt� ��S )z3Return the value for the given dimension and index.)r" r5 r8 �cs_getordinater r r )r � dimensionr% r r r � getOrdinateu s
zGEOSCoordSeq.getOrdinatec C s* | � |� | �|� t�| j|||� dS )z0Set the value for the given dimension and index.N)r" r5 r8 �cs_setordinater )r rN r% r/ r r r � setOrdinate{ s
zGEOSCoordSeq.setOrdinatec C � | � d|�S )z Get the X value at the index.r �rO r$ r r r �getX� � zGEOSCoordSeq.getXc C � | � d||� dS )z(Set X with the value at the given index.r N�rQ rB r r r �setX� � zGEOSCoordSeq.setXc C rR )z#Get the Y value at the given index.� rS r$ r r r �getY� rU zGEOSCoordSeq.getYc C rV )z(Set Y with the value at the given index.rZ NrW rB r r r �setY� rY zGEOSCoordSeq.setYc C rR )z(Get Z with the value at the given index.r( rS r$ r r r �getZ� rU zGEOSCoordSeq.getZc C rV )z(Set Z with the value at the given index.r( NrW rB r r r �setZ� rY zGEOSCoordSeq.setZc C � t �| jtt� ��S )z,Return the size of this coordinate sequence.)r8 �
cs_getsizer r r r r r r r � � zGEOSCoordSeq.sizec C r_ )z2Return the dimensions of this coordinate sequence.)r8 �
cs_getdimsr r r r r r r r+ � ra zGEOSCoordSeq.dimsc C r )z�
Return whether this coordinate sequence is 3D. This property value is
inherited from the parent Geometry.
)r r r r r �hasz� s zGEOSCoordSeq.haszc C s t t�| j�| j�S )z Clone this coordinate sequence.)r
r8 �cs_cloner rc r r r r �clone� s zGEOSCoordSeq.clonec s: � j rd�nd�dd�� �fdd�tt� ��D ���� S )z2Return the KML representation for the coordinates.z %s,%s,%s z%s,%s,0 z <coordinates>%s</coordinates>� c 3 s � | ] }�� | V qd S r7 r ��.0r �r �substrr r � <genexpr>� s � z#GEOSCoordSeq.kml.<locals>.<genexpr>)rc �joinr r. �stripr r ri r �kml� s $�zGEOSCoordSeq.kmlc s6 | j }| j� |dkr� d�S t� fdd�t|�D ��S )z3Return a tuple version of this coordinate sequence.rZ r c 3 s � | ]}� |�V qd S r7 r rg �� get_pointr r rk � s � z%GEOSCoordSeq.tuple.<locals>.<genexpr>)r r# r r )r �nr ro r r � s
zGEOSCoordSeq.tuplec C s� t � dk r8d}t| �}t|�D ]$}|d | }|| | d | | d 7 }|| | d | | d 8 }q|dkS t� }t�| jt|��sLtdtjj ��|j
dkS )z<Return whether this coordinate sequence is counterclockwise.)r' � g rZ r z*Error encountered in GEOS C function "%s".) r r. r r r8 � cs_is_ccwr r r � func_namer/ )r �arearq r �j�retr r r �is_counterclockwise� s
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z GEOSCoordSeq.is_counterclockwiseN)F))�__name__�
__module__� __qualname__�__doc__r
�ptr_typer r r r! r& r2 r" r5 r: r= r? rC rF rH �propertyr# rJ rI r- r, rO rQ rT rX r[ r\ r] r^ r r+ rc re rn r rx r r r r r
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N)r| �ctypesr r r r �django.contrib.gis.geosr r8 � django.contrib.gis.geos.baser � django.contrib.gis.geos.errorr � django.contrib.gis.geos.libgeosr
r � django.contrib.gis.shortcutsr r
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