/django/contrib/gis/gdal/prototypes/ds.py

https://code.google.com/p/mango-py/ · Python · 71 lines · 53 code · 7 blank · 11 comment · 0 complexity · 40a7ec48f88f9281af24788bb1c24695 MD5 · raw file 

    

  1. """
    2. 

  2.  This module houses the ctypes function prototypes for OGR DataSource
    3. 

  3.  related data structures. OGR_Dr_*, OGR_DS_*, OGR_L_*, OGR_F_*, 
    4. 

  4.  OGR_Fld_* routines are relevant here.
    5. 

  5. """
    6. 

  6. from ctypes import c_char_p, c_double, c_int, c_long, c_void_p, POINTER
    7. 

  7. from django.contrib.gis.gdal.envelope import OGREnvelope
    8. 

  8. from django.contrib.gis.gdal.libgdal import lgdal
    9. 

  9. from django.contrib.gis.gdal.prototypes.generation import \
    10. 

  10.     const_string_output, double_output, geom_output, int_output, \
    11. 

  11.     srs_output, void_output, voidptr_output
    12. 

  12. 

  13. c_int_p = POINTER(c_int) # shortcut type
    14. 

  14. 

  15. ### Driver Routines ###
    16. 

  16. register_all = void_output(lgdal.OGRRegisterAll, [], errcheck=False)
    17. 

  17. cleanup_all = void_output(lgdal.OGRCleanupAll, [], errcheck=False)
    18. 

  18. get_driver = voidptr_output(lgdal.OGRGetDriver, [c_int])
    19. 

  19. get_driver_by_name = voidptr_output(lgdal.OGRGetDriverByName, [c_char_p])
    20. 

  20. get_driver_count = int_output(lgdal.OGRGetDriverCount, [])
    21. 

  21. get_driver_name = const_string_output(lgdal.OGR_Dr_GetName, [c_void_p])
    22. 

  22. 

  23. ### DataSource ###
    24. 

  24. open_ds = voidptr_output(lgdal.OGROpen, [c_char_p, c_int, POINTER(c_void_p)])
    25. 

  25. destroy_ds = void_output(lgdal.OGR_DS_Destroy, [c_void_p], errcheck=False)
    26. 

  26. release_ds = void_output(lgdal.OGRReleaseDataSource, [c_void_p])
    27. 

  27. get_ds_name = const_string_output(lgdal.OGR_DS_GetName, [c_void_p])
    28. 

  28. get_layer = voidptr_output(lgdal.OGR_DS_GetLayer, [c_void_p, c_int])
    29. 

  29. get_layer_by_name = voidptr_output(lgdal.OGR_DS_GetLayerByName, [c_void_p, c_char_p])
    30. 

  30. get_layer_count = int_output(lgdal.OGR_DS_GetLayerCount, [c_void_p])
    31. 

  31. 

  32. ### Layer Routines ###
    33. 

  33. get_extent = void_output(lgdal.OGR_L_GetExtent, [c_void_p, POINTER(OGREnvelope), c_int])
    34. 

  34. get_feature = voidptr_output(lgdal.OGR_L_GetFeature, [c_void_p, c_long])
    35. 

  35. get_feature_count = int_output(lgdal.OGR_L_GetFeatureCount, [c_void_p, c_int])
    36. 

  36. get_layer_defn = voidptr_output(lgdal.OGR_L_GetLayerDefn, [c_void_p])
    37. 

  37. get_layer_srs = srs_output(lgdal.OGR_L_GetSpatialRef, [c_void_p])
    38. 

  38. get_next_feature = voidptr_output(lgdal.OGR_L_GetNextFeature, [c_void_p])
    39. 

  39. reset_reading = void_output(lgdal.OGR_L_ResetReading, [c_void_p], errcheck=False)
    40. 

  40. test_capability = int_output(lgdal.OGR_L_TestCapability, [c_void_p, c_char_p])
    41. 

  41. get_spatial_filter = geom_output(lgdal.OGR_L_GetSpatialFilter, [c_void_p])
    42. 

  42. set_spatial_filter = void_output(lgdal.OGR_L_SetSpatialFilter, [c_void_p, c_void_p], errcheck=False)
    43. 

  43. set_spatial_filter_rect = void_output(lgdal.OGR_L_SetSpatialFilterRect, [c_void_p, c_double, c_double, c_double, c_double], errcheck=False)
    44. 

  44. 

  45. ### Feature Definition Routines ###
    46. 

  46. get_fd_geom_type = int_output(lgdal.OGR_FD_GetGeomType, [c_void_p])
    47. 

  47. get_fd_name = const_string_output(lgdal.OGR_FD_GetName, [c_void_p])
    48. 

  48. get_feat_name = const_string_output(lgdal.OGR_FD_GetName, [c_void_p])
    49. 

  49. get_field_count = int_output(lgdal.OGR_FD_GetFieldCount, [c_void_p])
    50. 

  50. get_field_defn = voidptr_output(lgdal.OGR_FD_GetFieldDefn, [c_void_p, c_int])
    51. 

  51. 

  52. ### Feature Routines ###
    53. 

  53. clone_feature = voidptr_output(lgdal.OGR_F_Clone, [c_void_p])
    54. 

  54. destroy_feature = void_output(lgdal.OGR_F_Destroy, [c_void_p], errcheck=False)
    55. 

  55. feature_equal = int_output(lgdal.OGR_F_Equal, [c_void_p, c_void_p])
    56. 

  56. get_feat_geom_ref = geom_output(lgdal.OGR_F_GetGeometryRef, [c_void_p])
    57. 

  57. get_feat_field_count = int_output(lgdal.OGR_F_GetFieldCount, [c_void_p])
    58. 

  58. get_feat_field_defn = voidptr_output(lgdal.OGR_F_GetFieldDefnRef, [c_void_p, c_int])
    59. 

  59. get_fid = int_output(lgdal.OGR_F_GetFID, [c_void_p])
    60. 

  60. get_field_as_datetime = int_output(lgdal.OGR_F_GetFieldAsDateTime, [c_void_p, c_int, c_int_p, c_int_p, c_int_p, c_int_p, c_int_p, c_int_p])
    61. 

  61. get_field_as_double = double_output(lgdal.OGR_F_GetFieldAsDouble, [c_void_p, c_int])
    62. 

  62. get_field_as_integer = int_output(lgdal.OGR_F_GetFieldAsInteger, [c_void_p, c_int])
    63. 

  63. get_field_as_string = const_string_output(lgdal.OGR_F_GetFieldAsString, [c_void_p, c_int])
    64. 

  64. get_field_index = int_output(lgdal.OGR_F_GetFieldIndex, [c_void_p, c_char_p])
    65. 

  65. 

  66. ### Field Routines ###
    67. 

  67. get_field_name = const_string_output(lgdal.OGR_Fld_GetNameRef, [c_void_p])
    68. 

  68. get_field_precision = int_output(lgdal.OGR_Fld_GetPrecision, [c_void_p])
    69. 

  69. get_field_type = int_output(lgdal.OGR_Fld_GetType, [c_void_p])
    70. 

  70. get_field_type_name = const_string_output(lgdal.OGR_GetFieldTypeName, [c_int])
    71. 

  71. get_field_width = int_output(lgdal.OGR_Fld_GetWidth, [c_void_p])
    72.