Tilted Forum Project Discussion Community - View Single Post

gal · 03-03-2004, 05:49 AM

I'd like to write data to a binary file according to this specification:

The matlab syntax of fwrite is as follows:
fwrite(fid,A,precision)
where fid is file id, A is a variable and precision takes values similar to C such as 'real*4' for 32 bits floating point.

What I don't understand from reading the docs is how to write values with a given byte length, such as the ascii header. I'm also wondering if I got this right: I have to write 3 floats for each vertex, where one float is 4 bytes long, i.e. 32 bits. Then I use fwrite(fid,A(i),'real*4') and loop through the values?

03-03-2004, 05:49 AM	#1 (permalink)
gal Insane	[Matlab/C/Fortran] writing binary files I'd like to write data to a binary file according to this specification: The matlab syntax of fwrite is as follows: fwrite(fid,A,precision) where fid is file id, A is a variable and precision takes values similar to C such as 'real4' for 32 bits floating point. What I don't understand from reading the docs is how to write values with a given byte length, such as the ascii header. I'm also wondering if I got this right: I have to write 3 floats for each vertex, where one float is 4 bytes long, i.e. 32 bits. Then I use fwrite(fid,A(i),'real4') and loop through the values?