标签：level dev byte -- nsca usg mat off pci
GDAL 提供了不少小工具，其中， gdal_translate 可用于网格数据的格式转换。
GDAL 的安装方法如下：
Ubuntu/Debian 下:
sudo apt-get install gdal-bin
CentOS/Fedora 下:
sudo yum install gdal
Windows 下，到 http://www.gisinternals.com/ 下载安装包，安装后命令位于 C:\Program Files (x86)\GDAL\gdal_translate.exe。如果偶尔用一次，直接用 命令的完整路径即可；如果经常使用，可以将 C:\Program Files (x86)\GDAL\ 添加到环境变量 PATH 中
下面的命令可以将 GeoTiff 格式的数据转换为 GMT 可识别的 netCDF 格式:
gdal_translate -of GMT srtm_56_05.tif srtm_56_05.nc
gdal_translate 的语法如下:
Usage: gdal_translate [--help-general] [--long-usage] [-ot {Byte/Int16/UInt16/UInt32/Int32/Float32/Float64/ CInt16/CInt32/CFloat32/CFloat64}] [-strict] [-of format] [-b band] [-mask band] [-expand {gray|rgb|rgba}] [-outsize xsize[%] ysize[%]] [-unscale] [-scale[_bn] [src_min src_max [dst_min dst_max]]]* [-exponent[_bn] exp_val]* [-srcwin xoff yoff xsize ysize] [-projwin ulx uly lrx lry] [-epo] [-eco] [-a_srs srs_def] [-a_ullr ulx uly lrx lry] [-a_nodata value] [-gcp pixel line easting northing [elevation]]* [-mo"META-TAG=VALUE"]* [-q] [-sds] [-co"NAME=VALUE"]* [-stats] [-norat] src_dataset dst_dataset
-of 后接要转换的数据格式，使用 gdal_translate --long-usage 可以看到，支持的格式如下:
VRT: Virtual Raster GTiff: GeoTIFF NITF: National Imagery Transmission Format HFA: Erdas Imagine Images (.img) ELAS: ELAS AAIGrid: Arc/Info ASCII Grid DTED: DTED Elevation Raster PNG: Portable Network Graphics JPEG: JPEG JFIF MEM: In Memory Raster GIF: Graphics Interchange Format (.gif) FITS: Flexible Image Transport System XPM: X11 PixMap Format BMP: MS Windows Device Independent Bitmap PCIDSK: PCIDSK Database File PCRaster: PCRaster Raster File ILWIS: ILWIS Raster Map SGI: SGI Image File Format 1.0 SRTMHGT: SRTMHGT File Format Leveller: Leveller heightfield Terragen: Terragen heightfield GMT: GMT NetCDF Grid Format netCDF: Network Common Data Format HDF4Image: HDF4 Dataset ERS: ERMapper .ers Labelled JPEG2000: JPEG-2000 part 1 (ISO/IEC 15444-1) FIT: FIT Image RMF: Raster Matrix Format RST: Idrisi Raster A.1 INGR: Intergraph Raster GSAG: Golden Software ASCII Grid (.grd) GSBG: Golden Software Binary Grid (.grd) R: R Object Data Store PNM: Portable Pixmap Format (netpbm) ENVI: ENVI .hdr Labelled EHdr: ESRI .hdr Labelled PAux: PCI .aux Labelled MFF: Vexcel MFF Raster MFF2: Vexcel MFF2 (HKV) Raster BT: VTP .bt (Binary Terrain) 1.3 Format IDA: Image Data and Analysis USGSDEM: USGS Optional ASCII DEM (and CDED) ADRG: ARC Digitized Raster Graphics BLX: Magellan topo (.blx) Rasterlite: Rasterlite SAGA: SAGA GIS Binary Grid (.sdat)
标签：level dev byte -- nsca usg mat off pci
原文地址：http://www.cnblogs.com/Vae1990Silence/p/6618761.html
