Django

Code

Show
Ignore:
Timestamp:
11/17/07 15:38:36 (1 year ago)
Author:
jbronn
Message:

gis: gdal: refactor of the GDAL ctypes interface

(1) All interactions with the GDAL library take place through predefined ctypes prototypes, abstracting away error-checking.
(2) Fixed memory leaks by properly freeing pointers allocated w/in GDAL.
(3) Improved OFTField support, and added support for the OGR date/time fields.
(4) Significantly improved the OGRGeometry tests.

Files:

Legend:

Unmodified
Added
Removed
Modified
Copied
Moved

  • django/branches/gis/django/contrib/gis/gdal/envelope.py

    r6436 r6686  
    11""" 
    22 The GDAL/OGR library uses an Envelope structure to hold the bounding 
    3   box information for a geometry.  The envelope (bounding box) contains 
    4   two pairs of coordinates, one for the lower left coordinate and one 
    5   for the upper right coordinate: 
     3 box information for a geometry.  The envelope (bounding box) contains 
     4 two pairs of coordinates, one for the lower left coordinate and one 
     5 for the upper right coordinate: 
    66 
    7                             +----------o Upper right; (max_x, max_y) 
    8                             |          | 
    9                             |          | 
    10                             |          | 
    11   Lower left (min_x, min_y) o----------+ 
    12    
     7                           +----------o Upper right; (max_x, max_y) 
     8                           |          | 
     9                           |          | 
     10                           |          | 
     11 Lower left (min_x, min_y) o----------+ 
    1312""" 
    1413from ctypes import Structure, c_double 
    …… 
    3029    """ 
    3130    The Envelope object is a C structure that contains the minimum and 
    32     maximum X, Y coordinates for a rectangle bounding box.  The naming 
    33     of the variables is compatible with the OGR Envelope structure. 
     31    maximum X, Y coordinates for a rectangle bounding box.  The naming 
     32    of the variables is compatible with the OGR Envelope structure. 
    3433    """ 
    3534 
    …… 
    3736        """ 
    3837        The initialization function may take an OGREnvelope structure, 4-element 
    39         tuple or list, or 4 individual arguments. 
     38        tuple or list, or 4 individual arguments. 
    4039        """ 
    4140