hdrFiles: Header files

In rspatial/raster: Geographic Data Analysis and Modeling

Header files

Description

Write header files to use together with raster binary files to read the data in other applications.

Usage

hdr(x, format, extension='.wld', filename='') 

Arguments

x	RasterLayer or RasterBrick object associated with a binary values file on disk
format	Type of header file: 'VRT', 'BIL', 'ENVI', 'ErdasRaw', 'IDRISI', 'SAGA', 'RASTER', 'WORLDFILE', 'PRJ'
extension	File extension, only used with an ESRI worldfile (format='WORLDFILE')
filename	character. Need to be provided if x is not associated with a file

Details

The RasterLayer object must be associated with a file on disk.

You can use writeRaster to save a existing file in another format. But if you have a file in a 'raster' format (or similar), you can also only export a header file, and use the data file (.gri) that already exists. The function can write a VRT (GDAL virtual raster) header (.vrt); an ENVI or BIL header (.hdr) file; an Erdas Raw (.raw) header file; an IDRISI (.rdc) or SAGA (.sgrd). This (hopefully) allows for reading the binary data (.gri), perhaps after changing the file extension, in other programs such as ENVI or ArcGIS.

See Also

writeRaster

Examples

 
## Not run: 
r <- raster(system.file("external/test.grd", package="raster"))
r <- writeRaster(r, filename='export.grd', overwrite=TRUE)
hdr(r, format="ENVI") 

## End(Not run)

rspatial/raster documentation built on March 29, 2025, 2:10 p.m.