v^-@sdZddlmZmZmZddlmZddlmZddl 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@sDeZdZdZejZddddZddZdd Z d d 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&ed dCdDZ'edEdFZ(edGdHZ)eddIdJZ*dKS)LSpatialReferencez 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 CsJ|dkr5tjtd|_|j|dSt|trvyt|}d|}Wqtk rrYqXnIt|trd}n1t||j r|}d}nt d||dkr|}ntd}tj|}|st d|n ||_|d kr-|j |n|dkrF|j |dS) 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:%depsgZogrzInvalid SRS type "%s"z+Could not create spatial reference from: %sr )capiZnew_srsrptr import_wkt isinstancestrint ValueErrorZptr_type TypeErrorrimport_user_input import_epsg)selfZ srs_inputZsrs_typesridrbufr=/tmp/pip-build-8lau8j11/django/django/contrib/gis/gdal/srs.py__init__-s6            zSpatialReference.__init__cCs-t|tr|j|S|j|SdS)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 N)rtuple attr_value)rtargetrrr __getitem__^s zSpatialReference.__getitem__cCs|jS)zUse 'pretty' WKT.) pretty_wkt)rrrr__str__zszSpatialReference.__str__rcCsBt|t s t|t r&ttj|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. )rrrrrZget_attr_valuerr)rr"indexrrrr!s zSpatialReference.attr_valuecCstj|jt|S)z;Return the authority name for the given string target node.)rZ get_auth_namerr)rr"rrr auth_nameszSpatialReference.auth_namecCstj|jt|S)z;Return the authority code for the given string target node.)rZ get_auth_coderr)rr"rrr auth_codeszSpatialReference.auth_codecCsttj|jS)z/Return a clone of this SpatialReference object.)r rZ clone_srsr)rrrrcloneszSpatialReference.clonecCstj|jdS)z7Morph this SpatialReference from ESRI's format to EPSG.N)rZmorph_from_esrir)rrrr from_esriszSpatialReference.from_esricCstj|jdS)z This method inspects the WKT of this SpatialReference, and will add EPSG authority nodes where an EPSG identifier is applicable. N)r identify_epsgr)rrrrr+szSpatialReference.identify_epsgcCstj|jdS)z-Morph this SpatialReference to ESRI's format.N)rZ morph_to_esrir)rrrrto_esriszSpatialReference.to_esricCstj|jdS)z5Check to see if the given spatial reference is valid.N)rZ srs_validater)rrrrvalidateszSpatialReference.validatecCsJ|jr|jdS|jr,|jdS|jrB|jdSdSdS)z*Return the name of this Spatial Reference.ZPROJCSZGEOGCSZLOCAL_CSN) projectedr! geographiclocal)rrrrnames      zSpatialReference.namec Cs=yt|jddSWnttfk r8dSYnXdS)z=Return the SRID of top-level authority, or None if undefined.Z AUTHORITYN)rr!rr)rrrrrszSpatialReference.sridcCs(tj|jtt\}}|S)z$Return the name of the linear units.)r linear_unitsrrr)runitsr1rrr linear_names$zSpatialReference.linear_namecCs(tj|jtt\}}|S)z%Return the value of the linear units.)rr3rrr)rr4r1rrrr3s$zSpatialReference.linear_unitscCs(tj|jtt\}}|S)z%Return the name of the angular units.)r angular_unitsrrr)rr4r1rrr angular_names$zSpatialReference.angular_namecCs(tj|jtt\}}|S)z&Return the value of the angular units.)rr6rrr)rr4r1rrrr6s$zSpatialReference.angular_unitscCsd\}}|js|jrEtj|jtt\}}n-|jrrtj|jtt\}}|dk rt |}||fS)z Return a 2-tuple of the units value and the units name. Automatically determine whether to return the linear or angular units. N)NN) r.r0rr3rrrr/r6r )rr4r1rrrr4s ' $  zSpatialReference.unitscCs|j|j|jfS)z Return a tuple of the ellipsoid parameters: (semimajor axis, semiminor axis, and inverse flattening) ) semi_major semi_minorinverse_flattening)rrrr ellipsoidszSpatialReference.ellipsoidcCstj|jttS)z6Return the Semi Major Axis for this Spatial Reference.)rr8rrr)rrrrr8szSpatialReference.semi_majorcCstj|jttS)z6Return the Semi Minor Axis for this Spatial Reference.)rr9rrr)rrrrr9szSpatialReference.semi_minorcCstj|jttS)z9Return the Inverse Flattening for this Spatial Reference.)rZ invflatteningrrr)rrrrr:sz#SpatialReference.inverse_flatteningcCsttj|jS)zd Return True if this SpatialReference is geographic (root node is GEOGCS). )boolrZ isgeographicr)rrrrr/szSpatialReference.geographiccCsttj|jS)zFReturn True if this SpatialReference is local (root node is LOCAL_CS).)r<rZislocalr)rrrrr0szSpatialReference.localcCsttj|jS)zw Return True if this SpatialReference is a projected coordinate system (root node is PROJCS). )r<rZ isprojectedr)rrrrr. szSpatialReference.projectedcCstj|j|dS)z=Import the Spatial Reference from the EPSG code (an integer).N)rZ from_epsgr)rrrrrrszSpatialReference.import_epsgcCstj|j|dS)z2Import the Spatial Reference from a PROJ.4 string.N)rZ from_projr)rprojrrr import_projszSpatialReference.import_projcCstj|jt|dS)z>Import the Spatial Reference from the given user input string.N)rZfrom_user_inputrr)rZ user_inputrrrrsz"SpatialReference.import_user_inputcCs)tj|jttt|dS)z2Import the Spatial Reference from OGC WKT (string)N)rZfrom_wktrrrr)rr rrrrszSpatialReference.import_wktcCstj|j|dS)z0Import the Spatial Reference from an XML string.N)rZfrom_xmlr)rxmlrrr import_xml#szSpatialReference.import_xmlcCstj|jttS)z8Return the WKT representation of this Spatial Reference.)rZto_wktrrr)rrrrr (szSpatialReference.wktcCstj|jtt|S)z.Return the 'pretty' representation of the WKT.)rZ to_pretty_wktrrr)rZsimplifyrrrr$-szSpatialReference.pretty_wktcCstj|jttS)zrrr@r r$r=rAr?rrrrr %sN  1                r c@s7eZdZdZejZddZddZdS)CoordTransformz,The coordinate system transformation object.cCsct|t s t|t r,tdtj|j|j|_|j|_|j|_ dS)z;Initialize on a source and target SpatialReference objects.z2source and target must be of type SpatialReferenceN) rr rrZnew_ctZ_ptrrr1 _srs1_name _srs2_name)rsourcer"rrrrFs    zCoordTransform.__init__cCsd|j|jfS)NzTransform from "%s" to "%s")rJrK)rrrrr%NszCoordTransform.__str__N) rCrDrErFrZ destroy_ctrGrr%rrrrrIBs   rIN)rFctypesrrrZdjango.contrib.gis.gdal.baserZdjango.contrib.gis.gdal.errorrZ"django.contrib.gis.gdal.prototypesrrZdjango.utils.encodingrr r rIrrrrs