Hi Jacques,
The trouble is caused by your point being way outside the UTM zone 32's definition
area (longitude +6 - +12). Your coordinate is actually close to the middle of the
adjacent zone (33), which _will_ cause distortion when reprojecting.
If you try and use zone 33 instead, you'll get it to work right, I'm sure.
Best regards / Med venlig hilsen
Lars V. Nielsen
Odense, Denmark
----- Original Message -----
From: Jacques Paris <[EMAIL PROTECTED]>
To: MIL <[EMAIL PROTECTED]>
Sent: Friday, September 20, 2002 5:58 PM
Subject: MI-L precision of a projection
> I have used a table with the "Universal Transverse Mercator (WGS84) Zone 32
> Northern Hemisphere (i.e. 8,104...) to build lines over region borders. I do
> that by extracting with ObjectNodeX..Y of 2 successive nodes coordinates and
> using the creatline() function. All that is done after setting the coordsys
> to that of the table.
>
> I have used the program in many occasions without problem but the above
> projection makes my program crash. The origin of the crash is that the
> created lines are not lying exactly over the corresponding "sides" of the
> regions. I have observed for one node (I guess it is representative of the
> situation) a shift in the X direction only: a region node at (872411.6012,
> 5819181.1726) is converted to a line end at (872411.6502, 5819181.1726).
> This shift of 4 cm about is enough to make my program crash
>
> I seem to remember that someone wrote about a similar case, and that it was
> due to a fault in this projection model during the coordinate conversions to
> read in the values and to insert them back in the objects.
>
> Any confirmation of the problem would be greatly appreciated.
>
> Jacques Paris
> e-mail [EMAIL PROTECTED]
> MapBasic-MapInfo support http://www.paris-pc-gis.com
>
>
