Hi Yves,
I'm looking at Map 5, so there may be a slight difference, but they should
be close.
The Scale Factor on my computer, and in the source data for the coordinate
systems is definitely 0.9999. I wonder if there is some rounding going on in
your installation.
There are two definitions that I have for MTM, one is International Foot,
which may well be wrong, the other is for Metre.
The Zone 8 I am looking at does indeed go from 75-72d W.
Given your other email, I'm wondering if the coordinate system definitions
have been corrupted in some way for Map.
Cheers,
David Walsh
"Yves Allaire" wrote in message
news:5AAB07A15AE7C4C5E2ECFA7AC52FD5DF@in.WebX.maYIadrTaRb...
> In version 14 of Autocad Map (2.0 I guess) I created my own projections
for
> my drawings, and it was accurate, now with version 200i, there is a whole
> bunch of predefined categories, projections...
>
> The projections they call Québec zone 8 I don't know what were their
> references when they created this projection, because it's all wrong...
>
> First in Quebec MTM (Modified Mercator) we never use Feet, and the scale
> reduction is 0.9999 not 1.
>
> And it's description is Ontario East of 75d West, well the Ontario
boundary
> is at 80dW!!!!
>
> Normally the zone 8 is from 72-75dW...
>
>