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Added RasterSource/GDALBand GDAL objects

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Based on Daniel Wiesmann's raster branch. Thanks Daniel Wiesmann
and Tim Graham for the reviews. Refs #23804.
This commit is contained in:
Claude Paroz 2014-12-02 20:39:34 +01:00
parent 9fecb86a52
commit 6e08bde8c4
12 changed files with 512 additions and 9 deletions
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13
django/contrib/gis/gdal/srs.py
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@ -34,7 +34,7 @@ from django.contrib.gis.gdal.error import SRSException
from django.contrib.gis.gdal.prototypes import srs as capi
from django.utils import six
from django.utils.encoding import force_bytes
from django.utils.encoding import force_bytes, force_text
#### Spatial Reference class. ####
@ -46,16 +46,19 @@ class SpatialReference(GDALBase):
"""
#### Python 'magic' routines ####
def __init__(self, srs_input=''):
def __init__(self, srs_input='', srs_type='user'):
"""
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').
"""
srs_type = 'user'
if isinstance(srs_input, six.string_types):
if srs_type == 'wkt':
self.ptr = capi.new_srs(c_char_p(b''))
self.import_wkt(srs_input)
return
elif isinstance(srs_input, six.string_types):
# Encoding to ASCII if unicode passed in.
if isinstance(srs_input, six.text_type):
srs_input = srs_input.encode('ascii')
@ -232,7 +235,7 @@ class SpatialReference(GDALBase):
elif self.geographic:
units, name = capi.angular_units(self.ptr, byref(c_char_p()))
if name is not None:
name.decode()
name = force_text(name)
return (units, name)
#### Spheroid/Ellipsoid Properties ####