author | Pawel Solyga <Pawel.Solyga@gmail.com> |
Wed, 15 Apr 2009 15:56:17 +0000 | |
changeset 2185 | 09ca8e661728 |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
323
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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1 |
import os, sys |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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2 |
from ctypes import c_char_p, CDLL |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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from ctypes.util import find_library |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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from django.contrib.gis.gdal.error import OGRException |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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5 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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# Custom library path set? |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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try: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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from django.conf import settings |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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lib_path = settings.GDAL_LIBRARY_PATH |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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except (AttributeError, EnvironmentError, ImportError): |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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lib_path = None |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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12 |
|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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if lib_path: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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14 |
lib_names = None |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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15 |
elif os.name == 'nt': |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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16 |
# Windows NT shared library |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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17 |
lib_names = ['gdal15'] |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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18 |
elif os.name == 'posix': |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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19 |
# *NIX library names. |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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lib_names = ['gdal', 'gdal1.5.0'] |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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21 |
else: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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22 |
raise OGRException('Unsupported OS "%s"' % os.name) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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24 |
# Using the ctypes `find_library` utility to find the |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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25 |
# path to the GDAL library from the list of library names. |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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26 |
if lib_names: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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27 |
for lib_name in lib_names: |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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28 |
lib_path = find_library(lib_name) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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if not lib_path is None: break |
ff1a9aa48cfd
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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if lib_path is None: |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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32 |
raise OGRException('Could not find the GDAL library (tried "%s"). ' |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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'Try setting GDAL_LIBRARY_PATH in your settings.' % |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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'", "'.join(lib_names)) |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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36 |
# This loads the GDAL/OGR C library |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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37 |
lgdal = CDLL(lib_path) |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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39 |
# On Windows, the GDAL binaries have some OSR routines exported with |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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40 |
# STDCALL, while others are not. Thus, the library will also need to |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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41 |
# be loaded up as WinDLL for said OSR functions that require the |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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42 |
# different calling convention. |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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if os.name == 'nt': |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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44 |
from ctypes import WinDLL |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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lwingdal = WinDLL(lib_path) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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def std_call(func): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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48 |
""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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49 |
Returns the correct STDCALL function for certain OSR routines on Win32 |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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platforms. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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52 |
if os.name == 'nt': |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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return lwingdal[func] |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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else: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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return lgdal[func] |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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56 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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57 |
#### Version-information functions. #### |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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# Returns GDAL library version information with the given key. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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_version_info = std_call('GDALVersionInfo') |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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_version_info.argtypes = [c_char_p] |
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parents:
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_version_info.restype = c_char_p |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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def gdal_version(): |
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"Returns only the GDAL version number information." |
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
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return _version_info('RELEASE_NAME') |
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parents:
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|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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def gdal_full_version(): |
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parents:
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69 |
"Returns the full GDAL version information." |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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70 |
return _version_info('') |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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71 |
|
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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72 |
def gdal_release_date(date=False): |
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Pawel Solyga <Pawel.Solyga@gmail.com>
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73 |
""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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74 |
Returns the release date in a string format, e.g, "2007/06/27". |
ff1a9aa48cfd
Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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75 |
If the date keyword argument is set to True, a Python datetime object |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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76 |
will be returned instead. |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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77 |
""" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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78 |
from datetime import date as date_type |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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79 |
rel = _version_info('RELEASE_DATE') |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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80 |
yy, mm, dd = map(int, (rel[0:4], rel[4:6], rel[6:8])) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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81 |
d = date_type(yy, mm, dd) |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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82 |
if date: return d |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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83 |
else: return d.strftime('%Y/%m/%d') |