U
    N+|jç1  ã                   @   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
 ddlmZ ddlmZ ddlmZmZ G d	d
„ d
eƒZG dd„ deƒZG dd„ deƒZdS )ah  
  The Spatial Reference class, represents OGR Spatial Reference objects.

  Example:
  >>> from django.contrib.gis.gdal import SpatialReference
  >>> srs = SpatialReference('WGS84')
  >>> print(srs)
  GEOGCS["WGS 84",
      DATUM["WGS_1984",
          SPHEROID["WGS 84",6378137,298.257223563,
              AUTHORITY["EPSG","7030"]],
          TOWGS84[0,0,0,0,0,0,0],
          AUTHORITY["EPSG","6326"]],
      PRIMEM["Greenwich",0,
          AUTHORITY["EPSG","8901"]],
      UNIT["degree",0.01745329251994328,
          AUTHORITY["EPSG","9122"]],
      AUTHORITY["EPSG","4326"]]
  >>> print(srs.proj)
  +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
  >>> print(srs.ellipsoid)
  (6378137.0, 6356752.3142451793, 298.25722356300003)
  >>> print(srs.projected, srs.geographic)
  False True
  >>> srs.import_epsg(32140)
  >>> print(srs.name)
  NAD83 / Texas South Central
é    )ÚbyrefÚc_char_pÚc_int)ÚIntEnum)ÚGDALBase)ÚSRSException)ÚGDAL_VERSION)Úsrs)Úforce_bytesÚ	force_strc                   @   s   e Zd ZdZdZdS )Ú	AxisOrderr   é   N)Ú__name__Ú
__module__Ú__qualname__ÚTRADITIONALZ	AUTHORITY© r   r   úcc:\users\snmko\desktop\web_content\django_cbt\venv\Lib\site-packages\django/contrib/gis/gdal/srs.pyr   '   s   r   c                   @   s‚  e Zd ZdZejZdLdd„Zdd„ Zd	d
„ Z	dMdd„Z
dd„ Zdd„ Zdd„ Zdd„ Zdd„ Zdd„ Zdd„ Zedd„ ƒZedd„ ƒZed d!„ ƒZed"d#„ ƒZed$d%„ ƒZed&d'„ ƒZed(d)„ ƒZed*d+„ ƒZed,d-„ ƒZed.d/„ ƒZed0d1„ ƒZed2d3„ ƒZed4d5„ ƒZed6d7„ ƒZ d8d9„ Z!d:d;„ Z"d<d=„ Z#d>d?„ Z$d@dA„ Z%edBdC„ ƒZ&edNdDdE„ƒZ'edFdG„ ƒZ(edHdI„ ƒZ)edOdJdK„ƒZ*dS )PÚSpatialReferencezé
    A wrapper for the OGRSpatialReference object. According to the GDAL web site,
    the SpatialReference object "provide[s] services to represent coordinate
    systems (projections and datums) and to transform between them."
    Ú ÚuserNc                 C   s¶  t |tdƒtfƒstdƒ‚|p"tj| _|dkr”t tdƒ¡| _	|  
|¡ | jtjkrntdkrnt | j	| j¡ n"| jtjkr�tdk r�td| j ƒ‚dS t |tƒrÊzt|ƒ}d| }W qü tk
rÆ   Y qüX n2t |tƒrÚd}n"t || jƒrð|}d	}ntd
| ƒ‚|d	k�r|}ntdƒ}t |¡}|�s2td| ƒ‚n|| _	| jtjk�rbtdk�rbt | j	| j¡ n&| jtjk�rˆtdk �rˆtd| j ƒ‚|dk�rž|  |¡ n|dk�r²|  |¡ dS )a$  
        Create a GDAL OSR Spatial Reference object from the given input.
        The input may be string of OGC Well Known Text (WKT), an integer
        EPSG code, a PROJ string, and/or a projection "well known" shorthand
        string (one of 'WGS84', 'WGS72', 'NAD27', 'NAD83').
        Nz:SpatialReference.axis_order must be an AxisOrder instance.Úwktó    )é   r   z"%s is not supported in GDAL < 3.0.zEPSG:%dÚepsgZogrzInvalid SRS type "%s"z+Could not create spatial reference from: %sr   )Ú
isinstanceÚtyper   Ú
ValueErrorr   Ú
axis_orderÚcapiZnew_srsr   ÚptrÚ
import_wktr   Zset_axis_strategyÚstrÚintZptr_typeÚ	TypeErrorr   Úimport_user_inputÚimport_epsg)ÚselfZ	srs_inputZsrs_typer   Úsridr	   Úbufr   r   r   Ú__init__5   sT    ÿ




ÿ

zSpatialReference.__init__c                 C   s"   t |tƒr| j|Ž S |  |¡S dS )a“  
        Return 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),
        where child is the index of the attribute in the WKT.  For example:

        >>> wkt = 'GEOGCS["WGS 84", DATUM["WGS_1984, ... AUTHORITY["EPSG","4326"]]'
        >>> srs = SpatialReference(wkt) # could also use 'WGS84', or 4326
        >>> print(srs['GEOGCS'])
        WGS 84
        >>> print(srs['DATUM'])
        WGS_1984
        >>> print(srs['AUTHORITY'])
        EPSG
        >>> print(srs['AUTHORITY', 1]) # The authority value
        4326
        >>> print(srs['TOWGS84', 4]) # the fourth value in this wkt
        0
        >>> # For the units authority, have to use the pipe symbole.
        >>> print(srs['UNIT|AUTHORITY'])
        EPSG
        >>> print(srs['UNIT|AUTHORITY', 1]) # The authority value for the units
        9122
        N)r   ÚtupleÚ
attr_value©r'   Útargetr   r   r   Ú__getitem__t   s    

zSpatialReference.__getitem__c                 C   s   | j S )zUse 'pretty' WKT.)Ú
pretty_wkt©r'   r   r   r   Ú__str__‘   s    zSpatialReference.__str__r   c                 C   s,   t |tƒrt |tƒst‚t | jt|ƒ|¡S )zš
        The attribute value for the given target node (e.g. 'PROJCS'). The index
        keyword specifies an index of the child node to return.
        )r   r"   r#   r$   r   Zget_attr_valuer    r
   )r'   r.   Úindexr   r   r   r,   –   s    zSpatialReference.attr_valuec                 C   s   t  | j|dkr|nt|ƒ¡S )z;Return the authority name for the given string target node.N)r   Zget_auth_namer    r
   r-   r   r   r   Ú	auth_nameŸ   s     ÿzSpatialReference.auth_namec                 C   s   t  | j|dkr|nt|ƒ¡S )z;Return the authority code for the given string target node.N)r   Zget_auth_coder    r
   r-   r   r   r   Ú	auth_code¥   s     ÿzSpatialReference.auth_codec                 C   s   t t | j¡| jd�S )z/Return a clone of this SpatialReference object.)r   )r   r   Z	clone_srsr    r   r1   r   r   r   Úclone«   s    zSpatialReference.clonec                 C   s   t  | j¡ dS )z7Morph this SpatialReference from ESRI's format to EPSG.N)r   Zmorph_from_esrir    r1   r   r   r   Ú	from_esri¯   s    zSpatialReference.from_esric                 C   s   t  | j¡ dS )zš
        This method inspects the WKT of this SpatialReference, and will
        add EPSG authority nodes where an EPSG identifier is applicable.
        N)r   Úidentify_epsgr    r1   r   r   r   r8   ³   s    zSpatialReference.identify_epsgc                 C   s   t  | j¡ dS )z-Morph this SpatialReference to ESRI's format.N)r   Zmorph_to_esrir    r1   r   r   r   Úto_esriº   s    zSpatialReference.to_esric                 C   s   t  | j¡ dS )z5Check to see if the given spatial reference is valid.N)r   Zsrs_validater    r1   r   r   r   Úvalidate¾   s    zSpatialReference.validatec                 C   s8   | j r|  d¡S | jr |  d¡S | jr0|  d¡S dS dS )z*Return the name of this Spatial Reference.ZPROJCSZGEOGCSZLOCAL_CSN)Ú	projectedr,   Ú
geographicÚlocalr1   r   r   r   ÚnameÃ   s    


zSpatialReference.namec              	   C   s2   zt | jdd�ƒW S  ttfk
r,   Y dS X dS )z=Return the SRID of top-level authority, or None if undefined.N)r.   )r#   r5   r$   r   r1   r   r   r   r(   Ï   s    zSpatialReference.sridc                 C   s   t  | jttƒ ƒ¡\}}|S )z$Return the name of the linear units.©r   Úlinear_unitsr    r   r   ©r'   Úunitsr>   r   r   r   Úlinear_nameØ   s    zSpatialReference.linear_namec                 C   s   t  | jttƒ ƒ¡\}}|S )z%Return the value of the linear units.r?   rA   r   r   r   r@   Þ   s    zSpatialReference.linear_unitsc                 C   s   t  | jttƒ ƒ¡\}}|S )z%Return the name of the angular units.©r   Úangular_unitsr    r   r   rA   r   r   r   Úangular_nameä   s    zSpatialReference.angular_namec                 C   s   t  | jttƒ ƒ¡\}}|S )z&Return the value of the angular units.rD   rA   r   r   r   rE   ê   s    zSpatialReference.angular_unitsc                 C   sd   d\}}| j s| jr.t | jttƒ ƒ¡\}}n| jrLt | jttƒ ƒ¡\}}|dk	r\t	|ƒ}||fS )z˜
        Return a 2-tuple of the units value and the units name. Automatically
        determine whether to return the linear or angular units.
        )NNN)
r;   r=   r   r@   r    r   r   r<   rE   r   rA   r   r   r   rB   ð   s    zSpatialReference.unitsc                 C   s   | j | j| jfS )z
        Return a tuple of the ellipsoid parameters:
         (semimajor axis, semiminor axis, and inverse flattening)
        )Ú
semi_majorÚ
semi_minorÚinverse_flatteningr1   r   r   r   Ú	ellipsoid   s    zSpatialReference.ellipsoidc                 C   s   t  | jttƒ ƒ¡S )z6Return the Semi Major Axis for this Spatial Reference.)r   rG   r    r   r   r1   r   r   r   rG     s    zSpatialReference.semi_majorc                 C   s   t  | jttƒ ƒ¡S )z6Return the Semi Minor Axis for this Spatial Reference.)r   rH   r    r   r   r1   r   r   r   rH     s    zSpatialReference.semi_minorc                 C   s   t  | jttƒ ƒ¡S )z9Return the Inverse Flattening for this Spatial Reference.)r   Zinvflatteningr    r   r   r1   r   r   r   rI     s    z#SpatialReference.inverse_flatteningc                 C   s   t t | j¡ƒS )zd
        Return True if this SpatialReference is geographic
         (root node is GEOGCS).
        )Úboolr   Zisgeographicr    r1   r   r   r   r<     s    zSpatialReference.geographicc                 C   s   t t | j¡ƒS )zFReturn True if this SpatialReference is local (root node is LOCAL_CS).)rK   r   Zislocalr    r1   r   r   r   r=      s    zSpatialReference.localc                 C   s   t t | j¡ƒS )zw
        Return True if this SpatialReference is a projected coordinate system
         (root node is PROJCS).
        )rK   r   Zisprojectedr    r1   r   r   r   r;   %  s    zSpatialReference.projectedc                 C   s   t  | j|¡ dS )z=Import the Spatial Reference from the EPSG code (an integer).N)r   Z	from_epsgr    )r'   r   r   r   r   r&   .  s    zSpatialReference.import_epsgc                 C   s   t  | j|¡ dS )z0Import the Spatial Reference from a PROJ string.N)r   Z	from_projr    )r'   Úprojr   r   r   Úimport_proj2  s    zSpatialReference.import_projc                 C   s   t  | jt|ƒ¡ dS )z>Import the Spatial Reference from the given user input string.N)r   Zfrom_user_inputr    r
   )r'   Z
user_inputr   r   r   r%   6  s    z"SpatialReference.import_user_inputc                 C   s   t  | jttt|ƒƒƒ¡ dS )z2Import the Spatial Reference from OGC WKT (string)N)r   Zfrom_wktr    r   r   r
   )r'   r   r   r   r   r!   :  s    zSpatialReference.import_wktc                 C   s   t  | j|¡ dS )z0Import the Spatial Reference from an XML string.N)r   Zfrom_xmlr    )r'   Úxmlr   r   r   Ú
import_xml>  s    zSpatialReference.import_xmlc                 C   s   t  | jttƒ ƒ¡S )z8Return the WKT representation of this Spatial Reference.)r   Zto_wktr    r   r   r1   r   r   r   r   C  s    zSpatialReference.wktc                 C   s   t  | jttƒ ƒ|¡S )z.Return the 'pretty' representation of the WKT.)r   Zto_pretty_wktr    r   r   )r'   Zsimplifyr   r   r   r0   H  s    zSpatialReference.pretty_wktc                 C   s   t  | jttƒ ƒ¡S )z:Return the PROJ representation for this Spatial Reference.)r   Zto_projr    r   r   r1   r   r   r   rL   M  s    zSpatialReference.projc                 C   s   | j S )zAlias for proj().)rL   r1   r   r   r   Úproj4R  s    zSpatialReference.proj4c                 C   s   t  | jttƒ ƒt|ƒ¡S )z8Return the XML representation of this Spatial Reference.)r   Zto_xmlr    r   r   r
   )r'   Údialectr   r   r   rN   W  s    zSpatialReference.xml)r   r   N)r   )r   )r   )+r   r   r   Ú__doc__r   Zrelease_srsÚ
destructorr*   r/   r2   r,   r4   r5   r6   r7   r8   r9   r:   Úpropertyr>   r(   rC   r@   rF   rE   rB   rJ   rG   rH   rI   r<   r=   r;   r&   rM   r%   r!   rO   r   r0   rL   rP   rN   r   r   r   r   r   ,   sp   
?
	
















r   c                   @   s&   e Zd ZdZejZdd„ Zdd„ ZdS )ÚCoordTransformz,The coordinate system transformation object.c                 C   sB   t |tƒrt |tƒstdƒ‚t |j|j¡| _|j| _|j| _	dS )z;Initialize on a source and target SpatialReference objects.z2source and target must be of type SpatialReferenceN)
r   r   r$   r   Znew_ctZ_ptrr    r>   Ú
_srs1_nameÚ
_srs2_name)r'   Úsourcer.   r   r   r   r*   a  s     ÿzCoordTransform.__init__c                 C   s   d| j | jf S )NzTransform from "%s" to "%s")rV   rW   r1   r   r   r   r2   k  s    zCoordTransform.__str__N)	r   r   r   rR   r   Z
destroy_ctrS   r*   r2   r   r   r   r   rU   ]  s   
rU   N)rR   Úctypesr   r   r   Úenumr   Zdjango.contrib.gis.gdal.baser   Zdjango.contrib.gis.gdal.errorr   Zdjango.contrib.gis.gdal.libgdalr   Z"django.contrib.gis.gdal.prototypesr	   r   Zdjango.utils.encodingr
   r   r   r   rU   r   r   r   r   Ú<module>   s     3