diff options
Diffstat (limited to 'lib/python2.7/site-packages/django/contrib/gis/geos/base.py')
-rw-r--r-- | lib/python2.7/site-packages/django/contrib/gis/geos/base.py | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/lib/python2.7/site-packages/django/contrib/gis/geos/base.py b/lib/python2.7/site-packages/django/contrib/gis/geos/base.py deleted file mode 100644 index fd2693e..0000000 --- a/lib/python2.7/site-packages/django/contrib/gis/geos/base.py +++ /dev/null @@ -1,51 +0,0 @@ -from ctypes import c_void_p - -from django.contrib.gis.geos.error import GEOSException - -# Trying to import GDAL libraries, if available. Have to place in -# try/except since this package may be used outside GeoDjango. -try: - from django.contrib.gis import gdal -except ImportError: - # A 'dummy' gdal module. - class GDALInfo(object): - HAS_GDAL = False - gdal = GDALInfo() - -# NumPy supported? -try: - import numpy -except ImportError: - numpy = False - -class GEOSBase(object): - """ - Base object for GEOS objects that has a pointer access property - that controls access to the underlying C pointer. - """ - # Initially the pointer is NULL. - _ptr = None - - # Default allowed pointer type. - ptr_type = c_void_p - - # Pointer access property. - def _get_ptr(self): - # Raise an exception if the pointer isn't valid don't - # want to be passing NULL pointers to routines -- - # that's very bad. - if self._ptr: return self._ptr - else: raise GEOSException('NULL GEOS %s pointer encountered.' % self.__class__.__name__) - - def _set_ptr(self, ptr): - # Only allow the pointer to be set with pointers of the - # compatible type or None (NULL). - if ptr is None or isinstance(ptr, self.ptr_type): - self._ptr = ptr - else: - raise TypeError('Incompatible pointer type') - - # Property for controlling access to the GEOS object pointers. Using - # this raises an exception when the pointer is NULL, thus preventing - # the C library from attempting to access an invalid memory location. - ptr = property(_get_ptr, _set_ptr) |