Python std_call Examples

Example #1

File: srs.py Project: 0-yy-0/matplotlib

    Create a function prototype for the OSR routines that take
    the OSRSpatialReference object and return a double value.
    """
    return double_output(f, [c_void_p, POINTER(c_int)], errcheck=True)


def units_func(f):
    """
    Create a ctypes function prototype for OSR units functions, e.g.,
    OSRGetAngularUnits, OSRGetLinearUnits.
    """
    return double_output(f, [c_void_p, POINTER(c_char_p)], strarg=True)


# Creation & destruction.
clone_srs = srs_output(std_call('OSRClone'), [c_void_p])
new_srs = srs_output(std_call('OSRNewSpatialReference'), [c_char_p])
release_srs = void_output(lgdal.OSRRelease, [c_void_p], errcheck=False)
destroy_srs = void_output(std_call('OSRDestroySpatialReference'), [c_void_p],
                          errcheck=False)
srs_validate = void_output(lgdal.OSRValidate, [c_void_p])

# Getting the semi_major, semi_minor, and flattening functions.
semi_major = srs_double(lgdal.OSRGetSemiMajor)
semi_minor = srs_double(lgdal.OSRGetSemiMinor)
invflattening = srs_double(lgdal.OSRGetInvFlattening)

# WKT, PROJ, EPSG, XML importation routines.
from_wkt = void_output(lgdal.OSRImportFromWkt, [c_void_p, POINTER(c_char_p)])
from_proj = void_output(lgdal.OSRImportFromProj4, [c_void_p, c_char_p])
from_epsg = void_output(std_call('OSRImportFromEPSG'), [c_void_p, c_int])

Example #2

File: raster.py Project: letouriste001/SmartForest_2.0

"""
This module houses the ctypes function prototypes for GDAL DataSource (raster)
related data structures.
"""
from ctypes import POINTER, c_char_p, c_double, c_int, c_void_p
from functools import partial
from django.contrib.gis.gdal.libgdal import GDAL_VERSION, std_call
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
# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)
# Raster Driver Routines
register_all = void_output(std_call('GDALAllRegister'), [])
get_driver = voidptr_output(std_call('GDALGetDriver'), [c_int])
get_driver_by_name = voidptr_output(std_call('GDALGetDriverByName'), [c_char_p], errcheck=False)
get_driver_count = int_output(std_call('GDALGetDriverCount'), [])
get_driver_description = const_string_output(std_call('GDALGetDescription'), [c_void_p])
# Raster Data Source Routines
create_ds = voidptr_output(std_call('GDALCreate'), [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p])
open_ds = voidptr_output(std_call('GDALOpen'), [c_char_p, c_int])
if GDAL_VERSION >= (2, 0):
    close_ds = voidptr_output(std_call('GDALClose'), [c_void_p])
else:

Example #3

File: raster.py Project: Andifeind/django

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

# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)

# Raster Driver Routines
register_all = void_output(std_call('GDALAllRegister'), [])
get_driver = voidptr_output(std_call('GDALGetDriver'), [c_int])
get_driver_by_name = voidptr_output(std_call('GDALGetDriverByName'), [c_char_p], errcheck=False)
get_driver_count = int_output(std_call('GDALGetDriverCount'), [])
get_driver_description = const_string_output(std_call('GDALGetDescription'), [c_void_p])

# Raster Data Source Routines
create_ds = voidptr_output(std_call('GDALCreate'), [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p])
open_ds = voidptr_output(std_call('GDALOpen'), [c_char_p, c_int])
if GDAL_VERSION >= (2, 0):
    close_ds = voidptr_output(std_call('GDALClose'), [c_void_p])
else:
    close_ds = void_output(std_call('GDALClose'), [c_void_p])
flush_ds = int_output(std_call('GDALFlushCache'), [c_void_p])
copy_ds = voidptr_output(std_call('GDALCreateCopy'),
    [c_void_p, c_char_p, c_void_p, c_int, POINTER(c_char_p), c_void_p, c_void_p]

Example #4

File: raster.py Project: elisarocha/django-tdd-course

                                                           int_output,
                                                           void_output,
                                                           voidptr_output)

# For more detail about c function names and definitions see
# https://gdal.org/gdal_8h.html
# https://gdal.org/gdalwarper_8h.html
# https://www.gdal.org/gdal__utils_8h.html

# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)

# Raster Driver Routines
register_all = void_output(std_call("GDALAllRegister"), [], errcheck=False)
get_driver = voidptr_output(std_call("GDALGetDriver"), [c_int])
get_driver_by_name = voidptr_output(
    std_call("GDALGetDriverByName"), [c_char_p], errcheck=False
)
get_driver_count = int_output(std_call("GDALGetDriverCount"), [])
get_driver_description = const_string_output(std_call("GDALGetDescription"), [c_void_p])

# Raster Data Source Routines
create_ds = voidptr_output(
    std_call("GDALCreate"), [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p]
)
open_ds = voidptr_output(std_call("GDALOpen"), [c_char_p, c_int])
close_ds = void_output(std_call("GDALClose"), [c_void_p], errcheck=False)
flush_ds = int_output(std_call("GDALFlushCache"), [c_void_p])
copy_ds = voidptr_output(

Example #5

File: rasterize.py Project: geodesign/django-raster

from __future__ import unicode_literals

from ctypes import POINTER, c_char_p, c_double, c_int, c_void_p

import numpy

from django.contrib.gis.gdal import OGRGeometry
from django.contrib.gis.gdal.libgdal import std_call
from django.contrib.gis.gdal.prototypes.generation import voidptr_output

# Reference for GDALRasterizeGeometries
# http://gdal.org/gdal__alg_8h.html#a50caf4bc34703f0bcf515ecbe5061a0a

rasterize_geometries = voidptr_output(std_call('GDALRasterizeGeometries'),
    [c_void_p, c_int, POINTER(c_int), c_int, c_void_p, c_void_p, c_void_p, POINTER(c_double), POINTER(c_char_p), c_void_p, c_void_p],
    errcheck=False
)


def rasterize(geom, rast, burn_value=1, all_touched=False, add=False):
    """
    Rasterize a geometry. The result is aligned with the input raster.
    """
    # Create in memory target raster
    rasterized = rast.warp({'name': 'rasterized.MEM', 'driver': 'MEM'})

    # Set all values to zero if add option is off.
    if not add:
        rasterized.bands[0].data(numpy.zeros(rast.width * rast.height))

    # Set zero as nodata

Example #6

    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
# http://www.gdal.org/gdal__utils_8h.html

# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)

# Raster Driver Routines
register_all = void_output(std_call('GDALAllRegister'), [], errcheck=False)
get_driver = voidptr_output(std_call('GDALGetDriver'), [c_int])
get_driver_by_name = voidptr_output(std_call('GDALGetDriverByName'),
                                    [c_char_p],
                                    errcheck=False)
get_driver_count = int_output(std_call('GDALGetDriverCount'), [])
get_driver_description = const_string_output(std_call('GDALGetDescription'),
                                             [c_void_p])

# Raster Data Source Routines
create_ds = voidptr_output(
    std_call('GDALCreate'),
    [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p])
open_ds = voidptr_output(std_call('GDALOpen'), [c_char_p, c_int])
close_ds = void_output(std_call('GDALClose'), [c_void_p], errcheck=False)
flush_ds = int_output(std_call('GDALFlushCache'), [c_void_p])

Example #7

File: srs.py Project: 100448facens/django-example-jn

    Create a function prototype for the OSR routines that take
    the OSRSpatialReference object and return a double value.
    """
    return double_output(f, [c_void_p, POINTER(c_int)], errcheck=True)


def units_func(f):
    """
    Create a ctypes function prototype for OSR units functions, e.g.,
    OSRGetAngularUnits, OSRGetLinearUnits.
    """
    return double_output(f, [c_void_p, POINTER(c_char_p)], strarg=True)


# Creation & destruction.
clone_srs = srs_output(std_call('OSRClone'), [c_void_p])
new_srs = srs_output(std_call('OSRNewSpatialReference'), [c_char_p])
release_srs = void_output(lgdal.OSRRelease, [c_void_p], errcheck=False)
destroy_srs = void_output(std_call('OSRDestroySpatialReference'), [c_void_p], errcheck=False)
srs_validate = void_output(lgdal.OSRValidate, [c_void_p])

# Getting the semi_major, semi_minor, and flattening functions.
semi_major = srs_double(lgdal.OSRGetSemiMajor)
semi_minor = srs_double(lgdal.OSRGetSemiMinor)
invflattening = srs_double(lgdal.OSRGetInvFlattening)

# WKT, PROJ, EPSG, XML importation routines.
from_wkt = void_output(lgdal.OSRImportFromWkt, [c_void_p, POINTER(c_char_p)])
from_proj = void_output(lgdal.OSRImportFromProj4, [c_void_p, c_char_p])
from_epsg = void_output(std_call('OSRImportFromEPSG'), [c_void_p, c_int])
from_xml = void_output(lgdal.OSRImportFromXML, [c_void_p, c_char_p])

Example #8

File: raster.py Project: ArcTanSusan/django

    chararray_output, 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
# http://www.gdal.org/gdal__utils_8h.html

# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)

# Raster Driver Routines
register_all = void_output(std_call('GDALAllRegister'), [], errcheck=False)
get_driver = voidptr_output(std_call('GDALGetDriver'), [c_int])
get_driver_by_name = voidptr_output(std_call('GDALGetDriverByName'), [c_char_p], errcheck=False)
get_driver_count = int_output(std_call('GDALGetDriverCount'), [])
get_driver_description = const_string_output(std_call('GDALGetDescription'), [c_void_p])

# Raster Data Source Routines
create_ds = voidptr_output(std_call('GDALCreate'), [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p])
open_ds = voidptr_output(std_call('GDALOpen'), [c_char_p, c_int])
close_ds = void_output(std_call('GDALClose'), [c_void_p], errcheck=False)
flush_ds = int_output(std_call('GDALFlushCache'), [c_void_p])
copy_ds = voidptr_output(
    std_call('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(std_call('GDALAddBand'), [c_void_p, c_int])

Example #9

File: srs.py Project: AloneRoad/Inforlearn

def srs_double(f):
    """
    Creates a function prototype for the OSR routines that take
    the OSRSpatialReference object and
    """
    return double_output(f, [c_void_p, POINTER(c_int)], errcheck=True)

def units_func(f):
    """
    Creates a ctypes function prototype for OSR units functions, e.g.,
    OSRGetAngularUnits, OSRGetLinearUnits.
    """
    return double_output(f, [c_void_p, POINTER(c_char_p)], strarg=True)

# Creation & destruction.
clone_srs = srs_output(std_call('OSRClone'), [c_void_p])
new_srs = srs_output(std_call('OSRNewSpatialReference'), [c_char_p])
release_srs = void_output(lgdal.OSRRelease, [c_void_p], errcheck=False)
destroy_srs = void_output(std_call('OSRDestroySpatialReference'), [c_void_p], errcheck=False)
srs_validate = void_output(lgdal.OSRValidate, [c_void_p])

# Getting the semi_major, semi_minor, and flattening functions.
semi_major = srs_double(lgdal.OSRGetSemiMajor)
semi_minor = srs_double(lgdal.OSRGetSemiMinor)
invflattening = srs_double(lgdal.OSRGetInvFlattening)

# WKT, PROJ, EPSG, XML importation routines.
from_wkt = void_output(lgdal.OSRImportFromWkt, [c_void_p, POINTER(c_char_p)])
from_proj = void_output(lgdal.OSRImportFromProj4, [c_void_p, c_char_p])
from_epsg = void_output(std_call('OSRImportFromEPSG'), [c_void_p, c_int])
from_xml = void_output(lgdal.OSRImportFromXML, [c_void_p, c_char_p])

Example #10

File: srs.py Project: JustynaJBroniszewska/Blog

    Create a function prototype for the OSR routines that take
    the OSRSpatialReference object and return a double value.
    """
    return double_output(f, [c_void_p, POINTER(c_int)], errcheck=True)


def units_func(f):
    """
    Create a ctypes function prototype for OSR units functions, e.g.,
    OSRGetAngularUnits, OSRGetLinearUnits.
    """
    return double_output(f, [c_void_p, POINTER(c_char_p)], strarg=True)


# Creation & destruction.
clone_srs = srs_output(std_call("OSRClone"), [c_void_p])
new_srs = srs_output(std_call("OSRNewSpatialReference"), [c_char_p])
release_srs = void_output(lgdal.OSRRelease, [c_void_p], errcheck=False)
destroy_srs = void_output(
    std_call("OSRDestroySpatialReference"), [c_void_p], errcheck=False
)
srs_validate = void_output(lgdal.OSRValidate, [c_void_p])

# Getting the semi_major, semi_minor, and flattening functions.
semi_major = srs_double(lgdal.OSRGetSemiMajor)
semi_minor = srs_double(lgdal.OSRGetSemiMinor)
invflattening = srs_double(lgdal.OSRGetInvFlattening)

# WKT, PROJ, EPSG, XML importation routines.
from_wkt = void_output(lgdal.OSRImportFromWkt, [c_void_p, POINTER(c_char_p)])
from_proj = void_output(lgdal.OSRImportFromProj4, [c_void_p, c_char_p])

Example #11

File: raster.py Project: ramvittalkumar/nfv_api

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

# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)

# Raster Driver Routines
register_all = void_output(std_call('GDALAllRegister'), [])
get_driver = voidptr_output(std_call('GDALGetDriver'), [c_int])
get_driver_by_name = voidptr_output(std_call('GDALGetDriverByName'), [c_char_p], errcheck=False)
get_driver_count = int_output(std_call('GDALGetDriverCount'), [])
get_driver_description = const_string_output(std_call('GDALGetDescription'), [c_void_p])

# Raster Data Source Routines
create_ds = voidptr_output(std_call('GDALCreate'), [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p])
open_ds = voidptr_output(std_call('GDALOpen'), [c_char_p, c_int])
if GDAL_VERSION >= (2, 0):
    close_ds = voidptr_output(std_call('GDALClose'), [c_void_p])
else:
    close_ds = void_output(std_call('GDALClose'), [c_void_p])
flush_ds = int_output(std_call('GDALFlushCache'), [c_void_p])
copy_ds = voidptr_output(std_call('GDALCreateCopy'),
                         [c_void_p, c_char_p, c_void_p, c_int, POINTER(c_char_p), c_void_p, c_void_p]

Example #12

File: raster.py Project: snkhokh/django_sn

    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

# Prepare partial functions that use cpl error codes
void_output = partial(void_output, cpl=True)
const_string_output = partial(const_string_output, cpl=True)
double_output = partial(double_output, cpl=True)

# Raster Driver Routines
register_all = void_output(std_call('GDALAllRegister'), [])
get_driver = voidptr_output(std_call('GDALGetDriver'), [c_int])
get_driver_by_name = voidptr_output(std_call('GDALGetDriverByName'),
                                    [c_char_p],
                                    errcheck=False)
get_driver_count = int_output(std_call('GDALGetDriverCount'), [])
get_driver_description = const_string_output(std_call('GDALGetDescription'),
                                             [c_void_p])

# Raster Data Source Routines
create_ds = voidptr_output(
    std_call('GDALCreate'),
    [c_void_p, c_char_p, c_int, c_int, c_int, c_int, c_void_p])
open_ds = voidptr_output(std_call('GDALOpen'), [c_char_p, c_int])
if GDAL_VERSION >= (2, 0):
    close_ds = voidptr_output(std_call('GDALClose'), [c_void_p])

Example #13

File: statistics.py Project: slavas62/django-rastertiles

'''
Backport from django 1.10
'''

import math

from ctypes import byref, c_double, c_int, c_void_p, POINTER

from django.contrib.gis.gdal.libgdal import std_call
from django.contrib.gis.gdal.prototypes.generation import void_output

get_band_statistics = void_output(std_call('GDALGetRasterStatistics'), [
    c_void_p,
    c_int,
    c_int,
    POINTER(c_double),
    POINTER(c_double),
    POINTER(c_double),
    POINTER(c_double),
    c_void_p,
    c_void_p,
],
                                  errcheck=False)
compute_band_statistics = void_output(std_call('GDALComputeRasterStatistics'),
                                      [
                                          c_void_p, c_int,
                                          POINTER(c_double),
                                          POINTER(c_double),
                                          POINTER(c_double),
                                          POINTER(c_double), c_void_p, c_void_p
                                      ],

Example #14

File: srs.py Project: 10000001a/django-practice

    Create a function prototype for the OSR routines that take
    the OSRSpatialReference object and return a double value.
    """
    return double_output(f, [c_void_p, POINTER(c_int)], errcheck=True)


def units_func(f):
    """
    Create a ctypes function prototype for OSR units functions, e.g.,
    OSRGetAngularUnits, OSRGetLinearUnits.
    """
    return double_output(f, [c_void_p, POINTER(c_char_p)], strarg=True)


# Creation & destruction.
clone_srs = srs_output(std_call('OSRClone'), [c_void_p])
new_srs = srs_output(std_call('OSRNewSpatialReference'), [c_char_p])
release_srs = void_output(lgdal.OSRRelease, [c_void_p], errcheck=False)
destroy_srs = void_output(std_call('OSRDestroySpatialReference'), [c_void_p], errcheck=False)
srs_validate = void_output(lgdal.OSRValidate, [c_void_p])

# Getting the semi_major, semi_minor, and flattening functions.
semi_major = srs_double(lgdal.OSRGetSemiMajor)
semi_minor = srs_double(lgdal.OSRGetSemiMinor)
invflattening = srs_double(lgdal.OSRGetInvFlattening)

# WKT, PROJ, EPSG, XML importation routines.
from_wkt = void_output(lgdal.OSRImportFromWkt, [c_void_p, POINTER(c_char_p)])
from_proj = void_output(lgdal.OSRImportFromProj4, [c_void_p, c_char_p])
from_epsg = void_output(std_call('OSRImportFromEPSG'), [c_void_p, c_int])
from_xml = void_output(lgdal.OSRImportFromXML, [c_void_p, c_char_p])

Example #15

from ctypes import POINTER, c_char_p, c_double, c_int, c_void_p

import numpy

from django.contrib.gis.gdal import OGRGeometry
from django.contrib.gis.gdal.libgdal import std_call
from django.contrib.gis.gdal.prototypes.generation import voidptr_output

# Reference for GDALRasterizeGeometries
# http://gdal.org/gdal__alg_8h.html#a50caf4bc34703f0bcf515ecbe5061a0a

rasterize_geometries = voidptr_output(std_call('GDALRasterizeGeometries'), [
    c_void_p, c_int,
    POINTER(c_int), c_int, c_void_p, c_void_p, c_void_p,
    POINTER(c_double),
    POINTER(c_char_p), c_void_p, c_void_p
],
                                      errcheck=False)


def rasterize(geom, rast, burn_value=1, all_touched=False, add=False):
    """
    Rasterize a geometry. The result is aligned with the input raster.
    """
    # Create in memory target raster
    rasterized = rast.warp({'name': 'rasterized.MEM', 'driver': 'MEM'})

    # Set all values to zero if add option is off.
    if not add:
        rasterized.bands[0].data(numpy.zeros(rast.width * rast.height))