RE: MI maximum qty of points

1999-08-06 Thread Korkovelos, Dina, CPG

Martin,

Don't know if you got a response to this yet, but from what I gathered of
your e-mail, you mean that your graphical points form a straight line.  I
would imagine that this occurred in the rounding or dropping of decimal
points in the coordinates that you are using.


Dina Korkovelos
GIS Analyst
ATT Local Services


-Original Message-
From: Martin Cossette [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 04, 1999 4:37 PM
To: [EMAIL PROTECTED]
Subject: MI maximum qty of points



Hi all,

I recently had to combine 2 tables containing
75 000 points of elevation each into a "so called"
BigFile with Comb_lay.mbx in MI 5.0

All the points of one table got alligned in
a straight vertical line...  !!
Is a file with 150 000 points too big for MI 5.0 ?
Is there a max limit ?

Martin
Matawinie County Council, Quebec, Canada



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Re: MI maximum qty of points

1999-08-06 Thread David Bruce

Dina [and Martin],

The apparent displacement of point coordinates in one line may also be a
symptom of insufficient BOUNDS in the first table, i.e. the table to
which the second file is being combined.  This can happen if the tables
have been translated into MapInfo from another format using the
Universal Translator specifying something other than the default
projection.  If you have other software which can read the large data
files and determine the range between minimum and maximum coordinate
values, construct a file with these coordinates and translate it into
MapInfo first.  Open this table, then open the two translated point
files and combine them both into the temporary file with two points. 
Don't forget to delete the two temporary points after the tables are
combined.

David Bruce
[EMAIL PROTECTED] 

Korkovelos, Dina, CPG wrote:
 
 Martin,
 
 Don't know if you got a response to this yet, but from what I gathered of
 your e-mail, you mean that your graphical points form a straight line.  I
 would imagine that this occurred in the rounding or dropping of decimal
 points in the coordinates that you are using.
 
 Dina Korkovelos
 GIS Analyst
 ATT Local Services
 
 -Original Message-
 From: Martin Cossette [mailto:[EMAIL PROTECTED]]
 Sent: Wednesday, August 04, 1999 4:37 PM
 To: [EMAIL PROTECTED]
 Subject: MI maximum qty of points
 
 Hi all,
 
 I recently had to combine 2 tables containing
 75 000 points of elevation each into a "so called"
 BigFile with Comb_lay.mbx in MI 5.0
 
 All the points of one table got alligned in
 a straight vertical line...  !!
 Is a file with 150 000 points too big for MI 5.0 ?
 Is there a max limit ?
 
 Martin
 Matawinie County Council, Quebec, Canada
 
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 Get Your Private, Free Email at http://www.hotmail.com
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