ursa_info: Print metadata for raster image.
In ursa: Non-Interactive Spatial Tools for Raster Processing and Visualization

Description Usage Arguments Details Value Author(s) See Also Examples

Function shows information about raster CRS, data type, storage mode, nodata value, structure of band names.

1	ursa_info(obj, detail = NA, ...)

`obj`	`ursaRaster` object
`detail`	Not used. Reserved for potential detalization levels

...

Arguments, which are passed to str.

ursa_info generates a list and then shows structure of this list via function str.

Object of temporal class ursaMetadata is a list with items:

`columns`	Number of columns (samples)
`rows`	Number of rows (lines)
`resx`	Grid cell size by horizontal axis
`resy`	Grid cell size by vertical axis
`minx`	Left margin of boundary box
`maxx`	Right margin of boundary box
`miny`	Bottom margin of boundary box
`maxy`	Top margin of boundary box
`proj4`	PROJ.4 string
`nodata`	Optional. Value, which is interpreted as `NA`
`datatype`	Optional. If data are on disk, then integer code of data type.
`interleave`	Optional. If data are on disk, then abbreviation of bands interleave.
`mode`	Character of length 2: `storage mode` and `class` of value. If data has not been read, then class is `"logical"`. If data is not in memory, then storage mode is `"raw"`.
`bandname`	Band names.
`colortable`	Optional. Structure of color table.

Function returs NULL.

Nikita Platonov platonov@sevin.ru

str
print.ursaRaster

session_grid(NULL)
a <- as.integer(round(ursa_dummy(nband=3)))

print(a) ## print data
ursa_info(a,digits=1) ## print metadata

fname <- tempfile()
write_envi(a,fname,compress=FALSE)
b1 <- open_envi(fname)
ursa_info(b1)
close(b1)
b2 <- read_envi(fname)
ursa_info(b2)

# print ENVI header
sapply(c(" -------------- begin --------------",readLines(paste0(fname,".hdr"))
        ," --------------- end ---------------"),message)

envi_remove(fname)