File formats

  Table C.1 lists all file formats from the mfile.h header file.

 

Element format Compression format

lc line compressed

le2 2 byte low endian (VAX, DEC (mips), Intel)

le4 4 byte low endian (VAX, DEC (mips), Intel)

he2 2 byte high endian (HP, Motorola)

he4 4 byte high endian (HP, Motorola)

lf4 low endian 4 byte IEEE float

lf8 low endian 8 byte IEEE float

hf4 high endian 4 byte IEEE float

hf8 high endian 8 byte IEEE float

le2s signed LE2

he2s signed HE2 matrix file

vaxf VAX F format 4 byte float

vaxg VAX G format 8 byte float

mate PC-Mate spectra format

txt ASCII spectra, Integer or Double

trixi trixi save_matrix format

le2t triagonal LE2

le4t triagonal LE4

he2t triagonal HE2

he4t triagonal HE4

 

The order of bytes in a data word is described by its endianess. With high (big) endian byte order the bytes are numbered consecutively from left to right in a word. With little endian byte order the byte numbering is reversed as you go from right to left. The format of a spectrum is given in the following manner:

levels$>$.lines$>$.columns$>$.element format$>$:[version$>$]

like for example

1k.2k.4k.he4

which characterizes a cube with 1024 levels, 2048 lines and 4096 columns with 4-byte elements (total size = 35 GB) coded in high endian format.

Allowed abbreviations in the sizes of levels, lines and columns are:

k = kilo

m = mega