o :Zc-@spdZddlmZmZmZddlmZddlmZddl m Z ddl m Z mZGdddeZGd d d eZd 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 )byrefc_char_pc_int)GDALBase) SRSException)srs) force_bytes force_strc@seZdZdZejZdLddZddZdd Z dMd d Z d dZ ddZ ddZ ddZddZddZddZeddZeddZedd Zed!d"Zed#d$Zed%d&Zed'd(Zed)d*Zed+d,Zed-d.Zed/d0Zed1d2Zed3d4Zed5d6Z d7d8Z!d9d:Z"d;d<Z#d=d>Z$d?d@Z%edAdBZ&edMdCdDZ'edEdFZ(edGdHZ)edNdIdJZ*dKS)OSpatialReferencez 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." usercCs|dkrttd|_||dSt|tr,z t|}d|}Wn"ty+Ynwt|tr4d}nt||j r?|}d}nt d||dkrL|}n td}t|}|s]t d|||_|d krk| |dS|dkrv| |dSdS) 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.4 string, and/or a projection "well known" shorthand string (one of 'WGS84', 'WGS72', 'NAD27', 'NAD83'). wktNzEPSG:%depsgogrzInvalid SRS type "%s"z+Could not create spatial reference from: %sr )capinew_srsrptr import_wkt isinstancestrint ValueErrorptr_type TypeErrorrimport_user_input import_epsg)self srs_inputsrs_typesridrbufr"Q/var/www/chikooza/env/lib/python3.10/site-packages/django/contrib/gis/gdal/srs.py__init__-s:         zSpatialReference.__init__cCst|tr |j|S||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 >>> print(srs['UNIT|AUTHORITY']) # For the units authority, have to use the pipe symbole. EPSG >>> print(srs['UNIT|AUTHORITY', 1]) # The authority value for the units 9122 )rtuple attr_valuertargetr"r"r# __getitem__^s   zSpatialReference.__getitem__cC|jS)zUse 'pretty' WKT.) pretty_wktrr"r"r#__str__zszSpatialReference.__str__rcCs,t|tr t|ts tt|jt||S)z The attribute value for the given target node (e.g. 'PROJCS'). The index keyword specifies an index of the child node to return. )rrrrrget_attr_valuerr)rr(indexr"r"r#r&szSpatialReference.attr_valuecCt|jt|S)z;Return the authority name for the given string target node.)r get_auth_namerrr'r"r"r# auth_namezSpatialReference.auth_namecCr0)z;Return the authority code for the given string target node.)r get_auth_coderrr'r"r"r# auth_coder3zSpatialReference.auth_codecCtt|jS)z/Return a clone of this SpatialReference object.)r r clone_srsrr,r"r"r#clonezSpatialReference.clonecCt|jdS)z7Morph this SpatialReference from ESRI's format to EPSG.N)rmorph_from_esrirr,r"r"r# from_esrir9zSpatialReference.from_esricCr:)z This method inspects the WKT of this SpatialReference, and will add EPSG authority nodes where an EPSG identifier is applicable. N)r identify_epsgrr,r"r"r#r=szSpatialReference.identify_epsgcCr:)z-Morph this SpatialReference to ESRI's format.N)r morph_to_esrirr,r"r"r#to_esrir9zSpatialReference.to_esricCr:)z5Check to see if the given spatial reference is valid.N)r srs_validaterr,r"r"r#validater9zSpatialReference.validatecCs4|jr|dS|jr|dS|jr|dSdS)z*Return the name of this Spatial Reference.PROJCSGEOGCSLOCAL_CSN) projectedr& geographiclocalr,r"r"r#names   zSpatialReference.namec Cs,z t|ddWSttfyYdSw)z=Return the SRID of top-level authority, or None if undefined. AUTHORITYN)rr&rrr,r"r"r#r s zSpatialReference.sridcCt|jtt\}}|S)z$Return the name of the linear units.r linear_unitsrrrrunitsrHr"r"r# linear_namezSpatialReference.linear_namecCt|jtt\}}|S)z%Return the value of the linear units.rLrNr"r"r#rMrQzSpatialReference.linear_unitscCrK)z%Return the name of the angular units.r angular_unitsrrrrNr"r"r# angular_namerQzSpatialReference.angular_namecCrR)z&Return the value of the angular units.rSrNr"r"r#rTrQzSpatialReference.angular_unitscCsdd\}}|js |jrt|jtt\}}n|jr&t|jtt\}}|dur.t |}||fS)z Return a 2-tuple of the units value and the units name. Automatically determine whether to return the linear or angular units. )NNN) rErGrrMrrrrFrTr rNr"r"r#rOs zSpatialReference.unitscCs|j|j|jfS)z Return a tuple of the ellipsoid parameters: (semimajor axis, semiminor axis, and inverse flattening) ) semi_major semi_minorinverse_flatteningr,r"r"r# ellipsoidzSpatialReference.ellipsoidcCt|jttS)z6Return the Semi Major Axis for this Spatial Reference.)rrVrrrr,r"r"r#rVzSpatialReference.semi_majorcCr[)z6Return the Semi Minor Axis for this Spatial Reference.)rrWrrrr,r"r"r#rWr\zSpatialReference.semi_minorcCr[)z9Return the Inverse Flattening for this Spatial Reference.)r invflatteningrrrr,r"r"r#rXr\z#SpatialReference.inverse_flatteningcCr6)zd Return True if this SpatialReference is geographic (root node is GEOGCS). )boolr isgeographicrr,r"r"r#rFrZzSpatialReference.geographiccCr6)zFReturn True if this SpatialReference is local (root node is LOCAL_CS).)r^rislocalrr,r"r"r#rGszSpatialReference.localcCr6)zw Return True if this SpatialReference is a projected coordinate system (root node is PROJCS). )r^r isprojectedrr,r"r"r#rE rZzSpatialReference.projectedcCt|j|dS)z=Import the Spatial Reference from the EPSG code (an integer).N)r from_epsgr)rrr"r"r#rr3zSpatialReference.import_epsgcCrb)z2Import the Spatial Reference from a PROJ.4 string.N)r from_projr)rprojr"r"r# import_projr3zSpatialReference.import_projcCst|jt|dS)z>Import the Spatial Reference from the given user input string.N)rfrom_user_inputrr)r user_inputr"r"r#rsz"SpatialReference.import_user_inputcCst|jttt|dS)z2Import the Spatial Reference from OGC WKT (string)N)rfrom_wktrrrr)rr r"r"r#rszSpatialReference.import_wktcCrb)z0Import the Spatial Reference from an XML string.N)rfrom_xmlr)rxmlr"r"r# import_xml#r3zSpatialReference.import_xmlcCr[)z8Return the WKT representation of this Spatial Reference.)rto_wktrrrr,r"r"r#r (r\zSpatialReference.wktcCst|jtt|S)z.Return the 'pretty' representation of the WKT.)r to_pretty_wktrrr)rsimplifyr"r"r#r+-szSpatialReference.pretty_wktcCr[)zs