David:
I recently wrote a routine to do this for cell site locations. This is for
point objects only. Can be modified for other object types.
Here is how it goes:
1. Open your object table.
2. Create an empty mappable table based on the object table coordinate
system. This will be your buffer table.
3. Determine the total number of records in your object table. Select 1
record at a time and ...
4. Insert a new record into the buffer table with whatever information you
want from the object table into your buffer table, including the buffer
object.
This part of the code looks something like this, where Temp is the name of
the selection table (1 record), f_xcoord is the X coordinate of the object
and f_ycoord is the Y coordinate of the object, i_resol is the variable
which stores the buffer resolution and f_radius is the buffer size. :
s_cmdstr = "Insert Into BufferTable (CellSite_Number, CellSite_Location,
obj)"+
"Values ("+Temp.col1+","+ Temp.col2+","+
"
Buffer(CreatePoint("+f_xcoord+","+f_ycoord+"),"+i_resol+","+f_radius+","+
CHR$(34)+"km"+CHR$(34)+"))"
Run Command s_cmdstr
-----------------------------------------------------------------
Let me know if you want the rest of the code. If you do not have MapBasic,
you can do a lot of "update columns" or contact me and I can customize the
code for your file.
Regards,
Katherine Tang
GeoSolutions Consulting Inc.
38 Auriga Drive, Unit 3
Ottawa, Ontario, Canada K2E 8A5
Toll free: 1-877-727-7563
Ph: (613) 727-7563 ext. 402
Fx: (613) 727-3210
[EMAIL PROTECTED]
http://www.geosolutions.com
http://mapinfo.geosolutions.com
-----Original Message-----
From: David Piner Cen-IT [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 18, 2002 10:48 AM
To: [EMAIL PROTECTED]
Subject: MI-L Creating Buffers
Hello all,
Does anybody know of a tool or a way to create buffers for each object from
a table and populate the created buffer with the data from the buffered
object.
Thanks in advance,
David Piner
Bournemouth Borough Council
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