On 19/04/2013 10:41 AM, Ray wrote:
> But, after googled around, I still have no idea how to convert my 3D matrices
> data into a .DF3 file. Could you please give me some more details or examples
> for that?

Does this help? (From the 3.7 Help File)

3.4.7.1.8.1 df3 file format

Header:
The df3 format consists of a 6 byte header of three 16-bit integers with 
high order byte first. These three values give the x,y,z size of the 
data in pixels (or more appropriately called voxels ).

Data:
The header is followed by x*y*z unsigned integer bytes of data with a 
resolution of 8, 16 or 32 bit. The data are written with high order byte 
first (big-endian). The resolution of the data is determined by the size 
of the df3-file. That is, if the file is twice (minus header, of course) 
as long as an 8 bit file then it is assumed to contain 16 bit ints and 
if it is four times as long 32 bit ints.

Again from the help files

3.3.2.3.4 The write Directive

Note: See the sample macro ARRAYS_WriteDF3 in arrays.inc to see how this 
feature may be used.


Also somewhere on the net there is a utility called tga2df3.exe will 
convert a tga file to df3.


-- 
Regards
     Stephen

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