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1 """ |
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2 This module houses the ctypes function prototypes for OGR DataSource |
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3 related data structures. OGR_Dr_*, OGR_DS_*, OGR_L_*, OGR_F_*, |
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4 OGR_Fld_* routines are relevant here. |
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5 """ |
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6 from ctypes import c_char_p, c_int, c_long, c_void_p, POINTER |
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7 from django.contrib.gis.gdal.envelope import OGREnvelope |
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8 from django.contrib.gis.gdal.libgdal import lgdal |
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9 from django.contrib.gis.gdal.prototypes.generation import \ |
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10 const_string_output, double_output, geom_output, int_output, \ |
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11 srs_output, void_output, voidptr_output |
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12 |
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13 c_int_p = POINTER(c_int) # shortcut type |
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14 |
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15 ### Driver Routines ### |
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16 register_all = void_output(lgdal.OGRRegisterAll, [], errcheck=False) |
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17 cleanup_all = void_output(lgdal.OGRCleanupAll, [], errcheck=False) |
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18 get_driver = voidptr_output(lgdal.OGRGetDriver, [c_int]) |
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19 get_driver_by_name = voidptr_output(lgdal.OGRGetDriverByName, [c_char_p]) |
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20 get_driver_count = int_output(lgdal.OGRGetDriverCount, []) |
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21 get_driver_name = const_string_output(lgdal.OGR_Dr_GetName, [c_void_p]) |
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22 |
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23 ### DataSource ### |
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24 open_ds = voidptr_output(lgdal.OGROpen, [c_char_p, c_int, POINTER(c_void_p)]) |
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25 destroy_ds = void_output(lgdal.OGR_DS_Destroy, [c_void_p], errcheck=False) |
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26 release_ds = void_output(lgdal.OGRReleaseDataSource, [c_void_p]) |
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27 get_ds_name = const_string_output(lgdal.OGR_DS_GetName, [c_void_p]) |
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28 get_layer = voidptr_output(lgdal.OGR_DS_GetLayer, [c_void_p, c_int]) |
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29 get_layer_by_name = voidptr_output(lgdal.OGR_DS_GetLayerByName, [c_void_p, c_char_p]) |
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30 get_layer_count = int_output(lgdal.OGR_DS_GetLayerCount, [c_void_p]) |
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31 |
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32 ### Layer Routines ### |
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33 get_extent = void_output(lgdal.OGR_L_GetExtent, [c_void_p, POINTER(OGREnvelope), c_int]) |
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34 get_feature = voidptr_output(lgdal.OGR_L_GetFeature, [c_void_p, c_long]) |
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35 get_feature_count = int_output(lgdal.OGR_L_GetFeatureCount, [c_void_p, c_int]) |
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36 get_layer_defn = voidptr_output(lgdal.OGR_L_GetLayerDefn, [c_void_p]) |
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37 get_layer_srs = srs_output(lgdal.OGR_L_GetSpatialRef, [c_void_p]) |
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38 get_next_feature = voidptr_output(lgdal.OGR_L_GetNextFeature, [c_void_p]) |
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39 reset_reading = void_output(lgdal.OGR_L_ResetReading, [c_void_p], errcheck=False) |
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40 test_capability = int_output(lgdal.OGR_L_TestCapability, [c_void_p, c_char_p]) |
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41 |
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42 ### Feature Definition Routines ### |
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43 get_fd_geom_type = int_output(lgdal.OGR_FD_GetGeomType, [c_void_p]) |
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44 get_fd_name = const_string_output(lgdal.OGR_FD_GetName, [c_void_p]) |
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45 get_feat_name = const_string_output(lgdal.OGR_FD_GetName, [c_void_p]) |
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46 get_field_count = int_output(lgdal.OGR_FD_GetFieldCount, [c_void_p]) |
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47 get_field_defn = voidptr_output(lgdal.OGR_FD_GetFieldDefn, [c_void_p, c_int]) |
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48 |
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49 ### Feature Routines ### |
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50 clone_feature = voidptr_output(lgdal.OGR_F_Clone, [c_void_p]) |
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51 destroy_feature = void_output(lgdal.OGR_F_Destroy, [c_void_p], errcheck=False) |
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52 feature_equal = int_output(lgdal.OGR_F_Equal, [c_void_p, c_void_p]) |
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53 get_feat_geom_ref = geom_output(lgdal.OGR_F_GetGeometryRef, [c_void_p]) |
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54 get_feat_field_count = int_output(lgdal.OGR_F_GetFieldCount, [c_void_p]) |
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55 get_feat_field_defn = voidptr_output(lgdal.OGR_F_GetFieldDefnRef, [c_void_p, c_int]) |
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56 get_fid = int_output(lgdal.OGR_F_GetFID, [c_void_p]) |
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57 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]) |
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58 get_field_as_double = double_output(lgdal.OGR_F_GetFieldAsDouble, [c_void_p, c_int]) |
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59 get_field_as_integer = int_output(lgdal.OGR_F_GetFieldAsInteger, [c_void_p, c_int]) |
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60 get_field_as_string = const_string_output(lgdal.OGR_F_GetFieldAsString, [c_void_p, c_int]) |
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61 get_field_index = int_output(lgdal.OGR_F_GetFieldIndex, [c_void_p, c_char_p]) |
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62 |
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63 ### Field Routines ### |
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64 get_field_name = const_string_output(lgdal.OGR_Fld_GetNameRef, [c_void_p]) |
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65 get_field_precision = int_output(lgdal.OGR_Fld_GetPrecision, [c_void_p]) |
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66 get_field_type = int_output(lgdal.OGR_Fld_GetType, [c_void_p]) |
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67 get_field_type_name = const_string_output(lgdal.OGR_GetFieldTypeName, [c_int]) |
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68 get_field_width = int_output(lgdal.OGR_Fld_GetWidth, [c_void_p]) |