程序包 org.meteoinfo.ndarray.io.npy

类 Npy

java.lang.Object

org.meteoinfo.ndarray.io.npy.Npy

public class Npy
extends Object

构造器概要

构造器

构造器	说明
Npy()

方法概要

修饰符和类型	方法	说明
static Array	load(File file)	Load the content of the given file into NPY array instance.
static Array	load(String fileName)	Load the content of the given file into NPY array instance.
static Array	load(ReadableByteChannel channel)	Load the content of the given file into NPY array instance.
static void	save(File file, Array array)	Save array data to a npy file
static void	save(OutputStream outputStream, Array array)
static void	save(String fileName, Array array)	Save array data to a npy file
static void	save(WritableByteChannel channel, Array array)	Save array data to a npy file
static void	use(File file, BiConsumer<RandomAccessFile,NpyHeader> fn)	Opens the given file as a random access file and reads the NPY header.
static void	write(File file, NpyHeaderDict dict, byte[] data)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

Npy

public Npy()

方法详细资料

load

public static Array load(String fileName)

Load the content of the given file into NPY array instance.

参数:

file - the NPY file to read

返回:

the mapped NPY array

抛出:

NpyFormatException - if the NPY format is invalid or unsupported

RuntimeException - IO exceptions are wrapped in runtime exceptions

load

public static Array load(File file)

Load the content of the given file into NPY array instance.

参数:

file - the NPY file to read

返回:

the mapped NPY array

抛出:

NpyFormatException - if the NPY format is invalid or unsupported

RuntimeException - IO exceptions are wrapped in runtime exceptions

load

public static Array load(ReadableByteChannel channel)

Load the content of the given file into NPY array instance.

参数:

channel - the NPY file to read

返回:

the mapped NPY array

抛出:

NpyFormatException - if the NPY format is invalid or unsupported

RuntimeException - IO exceptions are wrapped in runtime exceptions

use

public static void use(File file,
                       BiConsumer<RandomAccessFile,NpyHeader> fn)

Opens the given file as a random access file and reads the NPY header. It calls the given consumer with the opened file and header and closes the file when the consumer returns. This is useful when you want to do multiple operations on an NPY file, e.g. read multiple columns.

参数:

file - the NPY file

fn - a consumer of the opened random access file and NPY header

save

public static void save(String fileName,
                        Array array)

Save array data to a npy file

参数:

fileName - The file path

array - The data array

save

public static void save(File file,
                        Array array)

Save array data to a npy file

参数:

file - The file

array - The data array

save

public static void save(WritableByteChannel channel,
                        Array array)

Save array data to a npy file

参数:

channel - The file channel

array - The data array

save

public static void save(OutputStream outputStream,
                        Array array)

write

public static void write(File file,
                         NpyHeaderDict dict,
                         byte[] data)