3 (h/@s|dZddlmZmZmZddlmZddlmZddl m Z ddl m Z ddlmZmZGdd d eZGd 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)six) force_bytes force_textc@seZdZdZdNddZddZdd Zd d ZdOd dZddZ ddZ ddZ ddZ ddZ ddZddZeddZedd Zed!d"Zed#d$Zed%d&Zed'd(Zed)d*Zed+d,Zed-d.Zed/d0Zed1d2Zed3d4Zed5d6Zed7d8Zd9d:Zd;d<Z d=d>Z!d?d@Z"dAdBZ#edCdDZ$edPdEdFZ%edGdHZ&edIdJZ'edQdKdLZ(dMS)RSpatialReferencez 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." userc Cs |dkr&tjtd|_|j|dSt|tjrtt|tjrH|j d}yt |}d|}Wqt k rpYqXn4t|tj rd}n"t||j r|}d}n td||dkr|}ntd}tj|}|std |n||_|d kr|j|n|dkr|j|dS) a' Creates 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'). wktNasciizEPSG:%depsgZogrzInvalid SRS type "%s"z+Could not create spatial reference from: %sr )capiZnew_srsrptr import_wkt isinstancer string_types text_typeencodeint ValueError integer_typesZptr_type TypeErrorrimport_user_input import_epsg)selfZ srs_inputZsrs_typesridrbufr"?/tmp/pip-install-q3hcpn_q/Django/django/contrib/gis/gdal/srs.py__init__-s:           zSpatialReference.__init__c Cs.ytj|jWnttfk r(YnXdS)z Destroys this spatial reference.N)rZ release_srs_ptrAttributeErrorr)rr"r"r#__del__aszSpatialReference.__del__cCs"t|tr|j|S|j|SdS)a Returns 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 N)rtuple attr_value)rtargetr"r"r# __getitem__hs  zSpatialReference.__getitem__cCs|jS)z,The string representation uses 'pretty' WKT.) pretty_wkt)rr"r"r#__str__szSpatialReference.__str__rcCs2t|tj st|t rttj|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. ) rrrrrrZget_attr_valuerr )rr*indexr"r"r#r)szSpatialReference.attr_valuecCstj|jt|S)zReturns the SRID of top-level authority, or None if undefined.Z AUTHORITYN)rr)rr)rr"r"r#r szSpatialReference.sridcCstj|jtt\}}|S)z%Returns the name of the linear units.)r linear_unitsrrr)runitsr9r"r"r# linear_nameszSpatialReference.linear_namecCstj|jtt\}}|S)z&Returns the value of the linear units.)rr;rrr)rr<r9r"r"r#r;szSpatialReference.linear_unitscCstj|jtt\}}|S)z&Returns the name of the angular units.)r angular_unitsrrr)rr<r9r"r"r# angular_nameszSpatialReference.angular_namecCstj|jtt\}}|S)z'Returns the value of the angular units.)rr>rrr)rr<r9r"r"r#r>szSpatialReference.angular_unitscCsdd\}}|js|jr.tj|jtt\}}n|jrLtj|jtt\}}|dk r\t |}||fS)z Returns a 2-tuple of the units value and the units name, and will automatically determines whether to return the linear or angular units. N)NN) r6r8rr;rrrr7r>r )rr<r9r"r"r#r<s zSpatialReference.unitscCs|j|j|jfS)z Returns a tuple of the ellipsoid parameters: (semimajor axis, semiminor axis, and inverse flattening) ) semi_major semi_minorinverse_flattening)rr"r"r# ellipsoidszSpatialReference.ellipsoidcCstj|jttS)z7Returns the Semi Major Axis for this Spatial Reference.)rr@rrr)rr"r"r#r@szSpatialReference.semi_majorcCstj|jttS)z7Returns the Semi Minor Axis for this Spatial Reference.)rrArrr)rr"r"r#rAszSpatialReference.semi_minorcCstj|jttS)z:Returns the Inverse Flattening for this Spatial Reference.)rZ invflatteningrrr)rr"r"r#rBsz#SpatialReference.inverse_flatteningcCsttj|jS)ze Returns True if this SpatialReference is geographic (root node is GEOGCS). )boolrZ isgeographicr)rr"r"r#r7szSpatialReference.geographiccCsttj|jS)zGReturns True if this SpatialReference is local (root node is LOCAL_CS).)rDrZislocalr)rr"r"r#r8szSpatialReference.localcCsttj|jS)zx Returns True if this SpatialReference is a projected coordinate system (root node is PROJCS). )rDrZ isprojectedr)rr"r"r#r6szSpatialReference.projectedcCstj|j|dS)z>Imports the Spatial Reference from the EPSG code (an integer).N)rZ from_epsgr)rrr"r"r#rszSpatialReference.import_epsgcCstj|j|dS)z3Imports the Spatial Reference from a PROJ.4 string.N)rZ from_projr)rprojr"r"r# import_proj"szSpatialReference.import_projcCstj|jt|dS)z?Imports the Spatial Reference from the given user input string.N)rZfrom_user_inputrr )rZ user_inputr"r"r#r&sz"SpatialReference.import_user_inputcCstj|jtt|dS)z3Imports the Spatial Reference from OGC WKT (string)N)rZfrom_wktrrr)rrr"r"r#r*szSpatialReference.import_wktcCstj|j|dS)z1Imports the Spatial Reference from an XML string.N)rZfrom_xmlr)rxmlr"r"r# import_xml.szSpatialReference.import_xmlcCstj|jttS)z9Returns the WKT representation of this Spatial Reference.)rZto_wktrrr)rr"r"r#r3szSpatialReference.wktcCstj|jtt|S)z/Returns the 'pretty' representation of the WKT.)rZ to_pretty_wktrrr)rZsimplifyr"r"r#r,8szSpatialReference.pretty_wktcCstj|jttS)z=Returns the PROJ.4 representation for this Spatial Reference.)rZto_projrrr)rr"r"r#rE=szSpatialReference.projcCs|jS)zAlias for proj().)rE)rr"r"r#proj4BszSpatialReference.proj4cCstj|jtt|S)z9Returns the XML representation of this Spatial Reference.)rZto_xmlrrr)rdialectr"r"r#rGGszSpatialReference.xmlN)r r )r)r)r ))__name__ __module__ __qualname____doc__r$r'r+r-r)r/r0r1r2r3r4r5propertyr9r r=r;r?r>r<rCr@rArBr7r8r6rrFrrrHrr,rErIrGr"r"r"r#r &sN 4                 r c@s(eZdZdZddZddZddZdS) CoordTransformz,The coordinate system transformation object.cCsFt|t st|t r tdtj|j|j|_|j|_|j|_ dS)zs    )