3 ฉ๔มgzใ@sddlmZGdd„dƒZdS)้)ฺgdalc@sฮeZdZdZedd„ƒZedd„ƒZedd„ƒZedd „ƒZed d „ƒZ ed d „ƒZ edd„ƒZ edd„ƒZ edd„ƒZ edd„ƒZedd„ƒZedd„ƒZedd„ƒZedd„ƒZed$dd „ƒZd!d"„Zd#S)%ฺSpatialRefSysMixinz~ The SpatialRefSysMixin is a class used by the database-dependent SpatialRefSys objects to reduce redundant code. c Csขt|dƒr|jjƒSytj|jƒ|_|jStk rN}z |}WYdd}~XnXytj|jƒ|_|jStk rŠ}z |}WYdd}~XnXtd|j|fƒ‚dS)z8 Return a GDAL SpatialReference object. ฺ_srsNz9Could not get OSR SpatialReference from WKT: %s Error: %s) ฺhasattrrฺclonerฺSpatialReferenceฺwktฺsrsฺ ExceptionZ proj4text)ฺselfฺeฺmsgฉr๚h/var/www/tester-filtro-web/env/lib/python3.6/site-packages/django/contrib/gis/db/backends/base/models.pyr s  zSpatialRefSysMixin.srscCs|jjS)z Return a tuple of the ellipsoid parameters: (semimajor axis, semiminor axis, and inverse flattening). )r ฺ ellipsoid)r rrrr$szSpatialRefSysMixin.ellipsoidcCs|jjS)zReturn the projection name.)r ฺname)r rrrr,szSpatialRefSysMixin.namecCs |jdS)z4Return the spheroid name for this spatial reference.ฺspheroid)r )r rrrr1szSpatialRefSysMixin.spheroidcCs |jdS)z,Return the datum for this spatial reference.ฺdatum)r )r rrrr6szSpatialRefSysMixin.datumcCs|jjS)z$Is this Spatial Reference projected?)r ฺ projected)r rrrr;szSpatialRefSysMixin.projectedcCs|jjS)z Is this Spatial Reference local?)r ฺlocal)r rrrr@szSpatialRefSysMixin.localcCs|jjS)z%Is this Spatial Reference geographic?)r ฺ geographic)r rrrrEszSpatialRefSysMixin.geographiccCs|jjS)zReturn the linear units name.)r ฺ linear_name)r rrrrJszSpatialRefSysMixin.linear_namecCs|jjS)zReturn the linear units.)r ฺ linear_units)r rrrrOszSpatialRefSysMixin.linear_unitscCs|jjS)z%Return the name of the angular units.)r ฺ angular_name)r rrrrTszSpatialRefSysMixin.angular_namecCs|jjS)zReturn the angular units.)r ฺ angular_units)r rrrrYsz SpatialRefSysMixin.angular_unitscCs2|js |jr|j|jfS|jr*|j|jfSdSdS)z)Return a tuple of the units and the name.N)NN)rrrrrrr)r rrrฺunits^s    zSpatialRefSysMixin.unitscCs tj|ƒjS)z Return a tuple of (unit_value, unit_name) for the given WKT without using any of the database fields. )rrr)ฺclsrrrrฺ get_unitshszSpatialRefSysMixin.get_unitsTcCs^tj|ƒ}|j}|d}|s$||fSt|ƒdkrD|d|d}}n|\}}d|||fSdS)zŒ Class method used by GeometryField on initialization to retrieve the `SPHEROID[..]` parameters from the given WKT. r้r้zSPHEROID["%s",%s,%s]N)rrrฺlen)rrฺstringr Z sphere_paramsZ sphere_nameZradiusZ flatteningrrrฺ get_spheroidps  zSpatialRefSysMixin.get_spheroidcCs t|jƒS)zG Return the string representation, a 'pretty' OGC WKT. )ฺstrr )r rrrฺ__str__„szSpatialRefSysMixin.__str__N)T)ฺ__name__ฺ __module__ฺ __qualname__ฺ__doc__ฺpropertyr rrrrrrrrrrrrฺ classmethodrr"r$rrrrrs$              rN)Zdjango.contrib.gisrrrrrrฺs