gdal2xyz.py

Translates a raster file into xyz format.

简介

gdal2xyz [-help]
    [-skip factor]
    [-srcwin xoff yoff xsize ysize]
    [-b band]* [-allbands]
    [-skipnodata]
    [-csv]
    [-srcnodata value] [-dstnodata value]
    src_dataset [dst_dataset]

描述

The gdal2xyz utility can be used to translate a raster file into xyz format. gdal2xyz can be used as an alternative to gdal_translate of=xyz, but supporting other options, for example:

• Select more then one band

• Skip or replace nodata value

• Return the output as numpy arrays.

-skip

How many rows/cols to skip in each iteration.

-srcwin <xoff> <yoff> <xsize> <ysize>

根据像素/线位置从源图像中选择要复制的子窗口。

-b, -band <band>

Select band band from the input spectral bands for output. Bands are numbered from 1 in the order spectral bands are specified. Multiple -b switches may be used. When no -b switch is used, the first band will be used. In order to use all input bands set -allbands or -b 0.

-allbands

Select all input bands.

-csv

Use comma instead of space as a delimiter.

-skipnodata

Exclude the output lines with nodata value (as determined by srcnodata)

-srcnodata

The nodata value of the dataset (for skipping or replacing) Default (None) - Use the dataset nodata value; Sequence/Number - Use the given nodata value (per band or per dataset).

-dstnodata

Replace source nodata with a given nodata. Has an effect only if not setting -skipnodata. Default(None) - Use srcnodata, no replacement; Sequence/Number - Replace the srcnodata with the given nodata value (per band or per dataset).

-h, --help

显示帮助消息并退出。

<src_dataset>

源数据集名称。它可以是文件名、数据源的URL或多数据集文件的子数据集名称。

<dst_dataset>

目标文件名。

实例

gdal2xyz -b 1 -b 2 -dstnodata 0 input.tif output.txt

To create a text file in xyz format from the input file input.tif, including the first and second bands, while replacing the dataset nodata values with zeros.