Tim,

ive come to this discussion late so i may be missing something or teaching 
grandma to suck eggs   so apologies if i'm off track here..

I work as a lone mapinfo user in an esri-based international mapping org... 
after 11 years of 'problems with shape files' i'm prepared to bet a lot of cash 
that the 'source' of the shapefile is the cause of your troubles.

for mapinfo to show a square grid of 5degree latlon data not only does the map 
and viewing window need to be in the correct projection (latlon) but the data 
must also have been captured/created with the  projection of lat lon.

Shapefiles are non projected and ESRI format data suppliers are really still 
only just getting to grips with what 'capturing with a projection' means. The 
fact that your map 'squares up' when you open a raster gives the game away, 
mapinfo bends the vector to fit the raster, the raster is a fixed sized grid of 
pixels (a flat chequerboard...it cannot be squashed into the rectangles that 
truly reflect a lat long projection)

I suspect that your shapefiles have been captured from flat paper maps as 'non 
earth', and then had a 'conversion' applied to them to make them return 
'correct' lat long values on an arcview3 screen.  (this is what we used to do 
and it isnt correct).  if possible convert the grid to a mif file or other text 
format and look at the coordinates buried within,  i suspect that your square 
grid contains some non square values and so when Mapinfo gets hold of it it 
correctly shows the true coordinate displacement....once you apply the raster, 
mapinfo is forced to bend the shape to the fixed 'lattice' of the ratser. (ie 
teh raster overrules the latlong 'oblation') Alternatively import teh shape 
file as non earth ... again i bet it will come in 'squared up'  a sure sign of 
what i call 'lazy' capture practices.

The other common problem i have found are maps captured from UTM projections 
(with coords shown in degrees rather than the usual metres) being passed to me 
as lat lon maps (coords also in degrees)  these go bananas depending upon  
where you are in the world. 

if this is the case then all is not lost, you can play with projectios to see 
what projection has actuall been used (start with the UTM zone for your area)  
or you can create mif files and apply transformations to 'stretch' the output 
back to its proper coords. take a look on the discussion board for doing this...

like i said, in 11 years, Mapinfo has only once let me down with a duff 
projection, my arc3- 9 -using colleagues fluff them nearly everyday.


Regards

r



-----Original Message-----
From: Tim Makins [mailto:[EMAIL PROTECTED]
Sent: 18 November 2004 10:37
To: Alan Cooper
Cc: [EMAIL PROTECTED]
Subject: Re: MI-L Shapefile Opening


Hi Alan - no, its not the screen distorting the squares. And I only used the
grid as an example - many shapefiles open like this - its just its easy to
see the problem with a grid.

If I want to open them 'correctly', I open a geo-referenced raster image
that is correctly projected to lat/lon 1:1 first. However this seems a crazy
way of doing things - I'm sure I'm making some stupid mistake, but can't
figure out what it might be !

Tim in Ireland.

----- Original Message ----- 
From: "Alan Cooper" <[EMAIL PROTECTED]>
To: "Tim Makins" <[EMAIL PROTECTED]>
Sent: Thursday, November 18, 2004 8:53 AM
Subject: Re: MI-L Shapefile Opening


> Tim,
> From Alan across the pond in North Wales.
> Stupid suggestions in no particular order.....
> Could it be your screen distorting the squares? Change the settings and
see
> if you get squares.
> Save a copy - into the projection you want. i.e force the data rather than
> accept what it is telling you.
> Use Universal translator first and not the 'Open' command. I have found
that
> to work when I don't get the results I expect.
> Chuck the Shapefile and make your own new grid in MI - takes a few
minutes.
>
> Alan
> The Lead Partnership
> www.leadpartners.co.uk
> ----- Original Message ----- 
> From: "Tim Makins" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, November 18, 2004 8:14 AM
> Subject: MI-L Shapefile Opening
>
>
> > Still no answer as to how to solve the problem in this question - does
> > nobody know ?
> >
> > I have a shapefile containing a world-coverage grid of 5degree squares.
If
> I
> > open this shapefile, the squares, instead of opening as squares, open as
> > rectangles - approx on-screen size of x7 y9. I would rather have them
> > opening as x7 y7. How can I do this, please ? It seems as if a
projection
> is
> > being imposed on the shapefile, even though in 'Options > Preferences >
> Map
> > Window' both the 'Table Projection' and the 'Session Projection' are
> already
> > set to 'Longitude/Latitude'.
> >
> > So how do I set the projection automatically when the shapefile is
opened
> ?
> >
> >
> > Tim in Ireland, using MapInfo Pro 7.5
> >
> >
> > ---------------------------------------------------------------------
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>


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