HF2 – HF2/HFZ heightfield raster¶
Driver short name
Driver built-in by default
This driver is built-in by default
GDAL supports reading and writing HF2/HFZ/HF2.GZ heightfield raster datasets.
HF2 is a heightfield format that records difference between consecutive cell values. HF2 files can also optionally be compressed by the gzip algorithm, and so the HF2.GZ files (or HFZ, equivalently) may be significantly smaller than the uncompressed data. The file format enables the user to have control on the desired accuracy through the vertical precision parameter.
GDAL can read and write georeferencing information through extended header blocks.
This driver supports the
This driver supports georeferencing
This driver supports virtual I/O operations (/vsimem/, etc.)
COMPRESS=YES/NO : whether the file must be compressed with GZip or no. Defaults to NO
BLOCKSIZE=block_size : internal tile size. Must be >= 8. Defaults to 256
VERTICAL_PRECISION=vertical_precision : Must be > 0. Defaults to 0.01
Increasing the vertical precision decreases the file size, especially with COMPRESS=YES, but at the loss of accuracy.