# GRASSASCIIGrid – GRASS ASCII Grid

Driver short name

GRASSASCIIGrid

Driver built-in by default

This driver is built-in by default

Supports reading GRASS ASCII grid format (similar to Arc/Info ASCIIGRID command).

By default, the datatype returned for GRASS ASCII grid datasets by GDAL is autodetected, and set to Float32 for grid with floating point values or Int32 otherwise. This is done by analysing the format of the null value and the first 100k bytes of data of the grid. You can also explicitly specify the datatype by setting the GRASSASCIIGRID_DATATYPE configuration option (Int32, Float32 and Float64 values are supported currently)

NOTE: Implemented as `gdal/frmts/aaigrid/aaigriddataset.cpp`.

## Driver capabilities

Supports Georeferencing

This driver supports georeferencing

Supports VirtualIO

This driver supports virtual I/O operations (/vsimem/, etc.)