Confirmed in OOo 1.1.4

As far as I can see there is no other behaviour as it is described in the help.
So I set this to enhancement because that's what it is.

The help say exactly:
"Specify the number of intervals between grid points"

But to get ten intervals we need to enter "9"

So, the program is definately not operating as described in the help file.

This also is not like people are used to, and is getting a pain when jumping 
between 10 and 20 intervals for example (1 and ½ mm on a 1cm base grid), where 
we need to enter 9 and 19 respectively.  Besides not as described in help, it is 
confusing.  I would call it a defect, repairing a defect is a enhancement, so 
whatever you call it... it should be repaired.

confirming. The behaviour matches the dialog, but not what is written in Help.

I'd love to see that the behaviour would be changed so that you would be able to
adjust the number of segments, not the number of dividing points.

I wrote a seperate issue 39831 regarding the help.

adjusted summary. original summary: "Grid Subdivision is weird and not as
described in help"

I just began trying out OpenOffice while looking for a Windows program similar
to "Omnigraffle" for Macintosh.  The DRAW module looked promising.  But the very
first thing I tried to do was to create a flowchart where I needed to add shapes
that snapped to a grid, and I ran into this issue.  It uses an extremely poor
choice of how to subdivide a measurement unit.  If I want eights-of-an-inch, I
need to choose Inch, and then set subdivisions to. . .7!  (which adds seven
evenly spaced grid dots *between* the end-dots of the measurement unit.  This is
a moronic way to handle this, every other program on earth would call this "8
subdivisions of the inch".  -I can get what I want (eighths of an inch) but I
have to set the divisions to "7" to get it.  (And the rulers are fixed to 10ths
of an inch, which is an equally annoying problem.  -And alt-drag does not do a
copy+paste, but again, this is another separate issue.  (Which when combined,
will keep me from using this application.)

Thank you for commenting.
I was beginning to think nobody use OOo draw...
Yes it is annoying OOo does this in another way than any other tool i have seen.

 ( <paranthesis> About your other issue:
As for learning how to do things, please first ask on user forum, and if a 
feature do not exist then file a request in a aseparate issue here.

In OOo Draw you can copy while dragging an object by the Ctrl key, then click 
and drag.  First enable this feature by setting a mark in right place in Tools-
>Alternatives->OpenOffice.org Draw.
    </parantesis> )

As for the subdivisions, it would be nice if there eventually would be a 
dicision about if OOo will continue to do this in a different way than any 
other program, or it will be fixed to work the logical way.
Soon 3 years have passed and it is still registered as enhancement without 
target version.

Thank you for the reply, and the additional info about Ctrl+drag.  The
subdivision problem really is quite bad, I can't imagine how any engineer *that
has ever used a graphic drawing program before* would implement dividing a
measurement unit by offering a box to enter "how many dots to add between
endpoint?" -To me it is clearly a case of a programmer who doesn't actually use
Draw apps making the control.  I don't understand why this hasn't been fixed,
all it would take is using exactly what is already there, but adding "n-1" dots
when the user enters "n" subdivisions.

The result, however, is someone like me who eagerly considered using the
application, but immediately ran into an issue like this:  -Definitely wrong,
and easily fixable- Only to find that the issue was reported three years ago and
never fixed.  This just sends a message to me that sorely needed fixes to really
bad user interface implementations in OpenOffice apparently don't get fixed, and
that is enough to send me running and screaming towards a better commercial
application.

It's really sad that there is not a simple and effective diagramming application
for Windows, Omnigraffle is simply an amazing program on Macintosh, with no
as-simple and as-powerful equivalent on Windows.  OpenOffice Draw was
recommended as a possible alternative, but after seeing this giant flaw, I'm
turning to Illustrator for my Windows diagramming needs instead.  Compared to
OpenOffice it is big, overkill, and expensive; but to Adobe's credit, it is
engineered by people who really do understand computer drawing, and any flaws
like this one in OpenOffice were corrected long ago.

I don't know what one has to do, to get this issue fixed in OpenOffice.  If
three years of knowing about it has resulted in nothing, I hesitate to wonder
how long it takes to fix really serious bugs?  Personally, I can't take this
product seriously if programmers don't take reports of flaws like this seriously.

I hope I don't sound too negative, but I had high hopes for OpenOffice, and I
think I learned "the hard way" that it's just not the contender it is purported
to be.  Perhaps a company selling commercial software has a greater interest in
improving their products than a company that makes no money on a product by
distributing it as free, opensource software.  Still, if it's opensource, you'd
figure somebody would have corrected this by now.

I think I agree with you, maybe there really is nobody using the draw module. 
My guess is the write module is the most-used OpenOffice component, as an
alternative to Word.

The field counts spaces now, no longer dots, in AOO 3.4.1