Troy-
First of all, you should File>Save Copies of both tables, and as you are
doing it, click the Projection button and make them both the same. This
makes the clipping and pasting you want to do more accurate. The one table
with the projection not on file does indeed have a valid MI projection, it's
just not one that's listed in your prj table. No biggie.
Now open both new tables and check the Table Structure - if they are not the
same, make them so. The records won't append properly if the columns are
mis-matched.
Next, with both tables open in a mapper, make the Cosmetic Layer editable
and draw your polygon on that layer. Choose Map>Save cosmetic objects and
write it into a new temporary table that you can delete later.
Make your selection from the county roads, and delete them. Choose
Table>Append rows to table and append the city roads to the county roads and
that should do it. Now your county roads table has everything in it and you
can rename if you like to ALLroads or whatever.
Hope that works out for you,
Jason
__________________
Jason Adam
Computer Draftsperson
De Beers Canada Exploration Inc
Toronto, ON
> -----Original Message-----
> From: Troy Wiora [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, October 03, 2000 4:27 PM
> To: [EMAIL PROTECTED]
> Subject: MI-L Combining Data
>
> I have a file containing all of the streets for a county and a file
> containing
> all of the streets in a city within this county. I need to create a
> polygon
> around the city file, without manually drawing it in, delete the data from
> the
> county file inside this polygon and paste the city data back in? I have
> already
> made all the column names match up and once I have the polygon, the rest
> should
> be easy. Right? The nodes do not have to match exactly and some overlap
> is OK.
> For my select statement I will only select segments that are entirely
> within the
> polygon. Also, as a side note, one file is "NAD27 for continental US" and
> the
> city file projection is "Not on file", whatever that means. On screen the
> two
> files line up very nicely.
>
> Thanks if you can help me out,
> Troy
>
>
>
>
> _______________________________________________________________________
> List hosting provided by Directions Magazine | www.directionsmag.com |
> To unsubscribe, send e-mail to [EMAIL PROTECTED] and
> put "unsubscribe MapInfo-L" in the message body.
_______________________________________________________________________
List hosting provided by Directions Magazine | www.directionsmag.com |
To unsubscribe, send e-mail to [EMAIL PROTECTED] and
put "unsubscribe MapInfo-L" in the message body.
