Commit 4df3a3e0 authored by Daniel Wiesmann's avatar Daniel Wiesmann Committed by Claude Paroz
Browse files

Added GDAL prototypes for raster support 

Refs #23804.
parent bba54534

AUTHORS

+1 −0
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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>

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

    if errcheck:

        func.errcheck = check_pointer

    return func

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

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"""

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])