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Python Driver.ptr_type方法代码示例

本文整理汇总了Python中django.contrib.gis.gdal.driver.Driver.ptr_type方法的典型用法代码示例。如果您正苦于以下问题:Python Driver.ptr_type方法的具体用法?Python Driver.ptr_type怎么用?Python Driver.ptr_type使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在django.contrib.gis.gdal.driver.Driver的用法示例。


在下文中一共展示了Driver.ptr_type方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: __init__

# 需要导入模块: from django.contrib.gis.gdal.driver import Driver [as 别名]
# 或者: from django.contrib.gis.gdal.driver.Driver import ptr_type [as 别名]
    def __init__(self, ds_input, ds_driver=False, write=False, encoding='utf-8'):
        # The write flag.
        if write:
            self._write = 1
        else:
            self._write = 0
        # See also https://trac.osgeo.org/gdal/wiki/rfc23_ogr_unicode
        self.encoding = encoding

        Driver.ensure_registered()

        if isinstance(ds_input, str):
            # The data source driver is a void pointer.
            ds_driver = Driver.ptr_type()
            try:
                # OGROpen will auto-detect the data source type.
                ds = capi.open_ds(force_bytes(ds_input), self._write, byref(ds_driver))
            except GDALException:
                # Making the error message more clear rather than something
                # like "Invalid pointer returned from OGROpen".
                raise GDALException('Could not open the datasource at "%s"' % ds_input)
        elif isinstance(ds_input, self.ptr_type) and isinstance(ds_driver, Driver.ptr_type):
            ds = ds_input
        else:
            raise GDALException('Invalid data source input type: %s' % type(ds_input))

        if ds:
            self.ptr = ds
            self.driver = Driver(ds_driver)
        else:
            # Raise an exception if the returned pointer is NULL
            raise GDALException('Invalid data source file "%s"' % ds_input)
开发者ID:GeyseR,项目名称:django,代码行数:34,代码来源:datasource.py

示例2: __init__

# 需要导入模块: from django.contrib.gis.gdal.driver import Driver [as 别名]
# 或者: from django.contrib.gis.gdal.driver.Driver import ptr_type [as 别名]
    def __init__(self, ds_input, ds_driver=False, write=False, encoding='utf-8'):
        # The write flag.
        if write:
            self._write = 1
        else:
            self._write = 0
        # See also http://trac.osgeo.org/gdal/wiki/rfc23_ogr_unicode
        self.encoding = encoding

        # Registering all the drivers, this needs to be done
        #  _before_ we try to open up a data source.
        if not capi.get_driver_count():
            capi.register_all()

        if isinstance(ds_input, six.string_types):
            # The data source driver is a void pointer.
            ds_driver = Driver.ptr_type()
            try:
                # OGROpen will auto-detect the data source type.
                ds = capi.open_ds(force_bytes(ds_input), self._write, byref(ds_driver))
            except OGRException:
                # Making the error message more clear rather than something
                # like "Invalid pointer returned from OGROpen".
                raise OGRException('Could not open the datasource at "%s"' % ds_input)
        elif isinstance(ds_input, self.ptr_type) and isinstance(ds_driver, Driver.ptr_type):
            ds = ds_input
        else:
            raise OGRException('Invalid data source input type: %s' % type(ds_input))

        if bool(ds):
            self.ptr = ds
            self.driver = Driver(ds_driver)
        else:
            # Raise an exception if the returned pointer is NULL
            raise OGRException('Invalid data source file "%s"' % ds_input)
开发者ID:SvetlanaM,项目名称:EnabledCityPaloAlto,代码行数:37,代码来源:datasource.py


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