Mike,

When I do this using SQL select, it selects all the data inside the polygon,
but when I save it and map it, it is only the polygon itself. There is no
selected data to be shown, except polygon.

Could you or someone from list let me know what I have forgotten to do?

Thanks

Ali

 

  _____  

From: Mike Tonge [mailto:[EMAIL PROTECTED] 
Sent: 19 September 2005 17:08
To: Ali Zolfaghari
Subject: Re: MI-L selecting and triming a rectangular from a tab file

 

You can use a SQL query to select all objects within a polygon which you've
drawn into another table (or cosmetic layer) and then save the selection as
another table.

 

The commands are:

 

Menu - Query/SQL select

 

Then the options are:

 

Select Columns: * 
from Tables: Table1, Table2

where Condition:Table1.obj Contains Table2.obj

Group by Columns:

Order by Columns:

intoTableNamed: Selection

 

 

Where:

 

Table1 is the table with your polygon in.

Table2 is the table with the objects that you want to select from.

Selection is the name that you want to give to the table containing your
trimmed values.

 

 

Then once you've done the SQL query simply use save copy as to save the new
table.

 

Hope this helps

 

Mike

 


Ali Zolfaghari <[EMAIL PROTECTED]> wrote:

Hi list,
Does anyone know how I can trim some part of a tab file which is fitted in a
rectangular or generally any shape? Imagine I have a tab file in MapInfo and
want to do analysis on a small area of this tab file, so I need to trim this
rectangular, the desired area, from this tab and save it in another table
file. 
Thanks
Al


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