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Code Issues 25 Releases Wiki Activity

Added GDAL prototypes for raster support

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Refs #23804.
This commit is contained in:
Daniel Wiesmann 2014-12-01 16:32:40 +01:00 committed by Claude Paroz
parent bba545345f
commit 4df3a3e0e9
3 changed files with 60 additions and 2 deletions
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1
AUTHORS
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@ -168,6 +168,7 @@ answer newbie questions, and generally made Django that much better:
Daniel Poelzleithner <http://poelzi.org/>
Daniel Pyrathon <pirosb3@gmail.com>
Daniel Roseman <http://roseman.org.uk/>
Daniel Wiesmann <daniel.wiesmann@gmail.com>
Danilo Bargen
Dan Johnson <danj.py@gmail.com>
Dan Poirier <poirier@pobox.com>

5
django/contrib/gis/gdal/prototypes/generation.py
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@ -130,9 +130,10 @@ def void_output(func, argtypes, errcheck=True):
return func
def voidptr_output(func, argtypes):
def voidptr_output(func, argtypes, errcheck=True):
"For functions that return c_void_p."
func.argtypes = argtypes
func.restype = c_void_p
func.errcheck = check_pointer
if errcheck:
func.errcheck = check_pointer
return func

56
django/contrib/gis/gdal/prototypes/raster.py Normal file
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@ -0,0 +1,56 @@
"""
This module houses the ctypes function prototypes for GDAL DataSource (raster)
related data structures.
"""
from ctypes import c_char_p, c_double, c_int, c_void_p, POINTER
from django.contrib.gis.gdal.libgdal import lgdal
from django.contrib.gis.gdal.prototypes.generation import (const_string_output,
double_output, int_output, void_output, voidptr_output)
# For more detail about c function names and definitions see
# http://gdal.org/gdal_8h.html
# http://gdal.org/gdalwarper_8h.html
### Raster Driver Routines ###
register_all = void_output(lgdal.GDALAllRegister, [])
get_driver = voidptr_output(lgdal.GDALGetDriver, [c_int])
get_driver_by_name = voidptr_output(lgdal.GDALGetDriverByName, [c_char_p], errcheck=False)
get_driver_count = int_output(lgdal.GDALGetDriverCount, [])
get_driver_description = const_string_output(lgdal.GDALGetDescription, [c_void_p])
### Raster Data Source Routines ###
create_ds = voidptr_output(lgdal.GDALCreate, [c_void_p, c_char_p, c_int, c_int, c_int, c_int])
open_ds = voidptr_output(lgdal.GDALOpen, [c_char_p, c_int])
close_ds = void_output(lgdal.GDALClose, [c_void_p])
copy_ds = voidptr_output(lgdal.GDALCreateCopy, [c_void_p, c_char_p, c_void_p, c_int,
POINTER(c_char_p), c_void_p, c_void_p])
add_band_ds = void_output(lgdal.GDALAddBand, [c_void_p, c_int])
get_ds_description = const_string_output(lgdal.GDALGetDescription, [])
get_ds_driver = voidptr_output(lgdal.GDALGetDatasetDriver, [c_void_p])
get_ds_xsize = int_output(lgdal.GDALGetRasterXSize, [c_void_p])
get_ds_ysize = int_output(lgdal.GDALGetRasterYSize, [c_void_p])
get_ds_raster_count = int_output(lgdal.GDALGetRasterCount, [c_void_p])
get_ds_raster_band = voidptr_output(lgdal.GDALGetRasterBand, [c_void_p, c_int])
get_ds_projection_ref = const_string_output(lgdal.GDALGetProjectionRef, [c_void_p])
set_ds_projection_ref = void_output(lgdal.GDALSetProjection, [c_void_p, c_char_p])
get_ds_geotransform = void_output(lgdal.GDALGetGeoTransform, [c_void_p, POINTER(c_double * 6)], errcheck=False)
set_ds_geotransform = void_output(lgdal.GDALSetGeoTransform, [c_void_p, POINTER(c_double * 6)])
### Raster Band Routines ###
band_io = void_output(lgdal.GDALRasterIO, [c_void_p, c_int, c_int, c_int, c_int, c_int,
c_void_p, c_int, c_int, c_int, c_int, c_int])
get_band_xsize = int_output(lgdal.GDALGetRasterBandXSize, [c_void_p])
get_band_ysize = int_output(lgdal.GDALGetRasterBandYSize, [c_void_p])
get_band_index = int_output(lgdal.GDALGetBandNumber, [c_void_p])
get_band_description = const_string_output(lgdal.GDALGetDescription, [c_void_p])
get_band_ds = voidptr_output(lgdal.GDALGetBandDataset, [c_void_p])
get_band_datatype = int_output(lgdal.GDALGetRasterDataType, [c_void_p])
get_band_nodata_value = double_output(lgdal.GDALGetRasterNoDataValue, [c_void_p, POINTER(c_int)])
set_band_nodata_value = void_output(lgdal.GDALSetRasterNoDataValue, [c_void_p, c_double])
get_band_minimum = double_output(lgdal.GDALGetRasterMinimum, [c_void_p])
get_band_maximum = double_output(lgdal.GDALGetRasterMaximum, [c_void_p])
### Reprojection routine ###
reproject_image = void_output(lgdal.GDALReprojectImage, [c_void_p, c_char_p, c_void_p, c_char_p,
c_int, c_double, c_double,
c_void_p, c_void_p, c_void_p])