[GRASS5] reading vector file in java

[Davide Giacomelli]

Hello,

I'm trying to read the "coor" file  of a grass vector in java. I'm trying to read it byte after byte, to casting then single byte (or byte's group) to java type.

I used the "coor file format specification"  to select what kind of java type I had to use, but I have some problems doing this. 

Reading the file format specification I understood that the file size variable is a 4 bytes long variable, including the bytes from the 7th to the 10th; but I found the file size right value reading  the bytes from 11th to the 14th. Is it possible? Where am I wrong?

I have some other question:

Why the "record header" named variable is integer type (i.e. 4 bytes), when it uses only the first byte of  its reserved space?

Which combinations  of  binary value in this variable (record header) are for  vector type 

(i.e. GV_POINT, GV_LINE, GV_BOUNDARY, GV_CENTROID)?

Thanks, 

davide
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