rgdal (version 0.7-7)

GDALRasterBand-class: Class "GDALRasterBand"

Description

Returns a two-dimensional array with data from a raster band, used internally within functions

Usage

getRasterData(dataset, band = NULL, offset = c(0, 0),
              region.dim = dim(dataset), output.dim = region.dim,
              interleave = c(0, 0), as.is = FALSE) 
getRasterTable(dataset, band = NULL, offset = c(0, 0), 
  region.dim = dim(dataset))
getProjectionRef(dataset)
getRasterBand(dataset, band = 1)
getRasterBlockSize(raster)
toSigned(x, base)
toUnSigned(x, base)

Arguments

dataset

An object inheriting from class 'GDALReadOnlyDataset'

band

The band number (1-based) to read from

offset

Number of rows and columns from the origin (usually the upper left corner) to begin reading from; presently ordered (y,x) - this may change

region.dim

The number of rows and columns to read from the dataset; presently ordered (y,x) - this may change

output.dim

Number of rows and columns in the output data; if smaller than region.dim the data will be subsampled

interleave

Element and row stride while reading data; rarely needed

as.is

If false, scale the data to its natural units; if the case of thematic data, return the data as factors

raster

An object of class GDALRasterBand

x

integer variable for conversion

base

If Byte input, 8, if Int16 or UInt16, 16

Objects from the Class

Objects can be created by calls of the form new("GDALRasterBand", dataset, band).

Extends

Class "GDALMajorObject", directly.

Details

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

See Also

See also GDALDriver-class, GDALDataset-class, GDALTransientDataset-class

Examples

logo <- system.file("pictures/logo.jpg", package="rgdal")[1]
x <- new("GDALReadOnlyDataset", logo)
plot(density(getRasterTable(x)$band1))
GDAL.close(x)