> As I already said in my question, this command can not be used together
> with the update command. This command is simular to the Create Circle
> command, which is different to the CreateCircle() function. This can only
> be used with the alter command, going through the table record for record,
> and then it will take to much time.
>
Carla
> -----Original Message-----
> From: Stefan Majtan [SMTP:[EMAIL PROTECTED]]
> Sent: dinsdag 5 oktober 1999 1:14
> To: Oosterheert, Carla
> Cc: MapInfo MapInfo-L
> Subject: RE: point object to rectangle with update command
>
> Please check more one help of MapBasic. There is function, which you are
> looking for.
> The syntax is:
> Create Rect [ Into { Window window_id | Variable var_name } ]
> ( x1, y1) ( x2, y2)
> [ Pen . . . ]
> [ Brush . . . ]
>
> Stefan
>
> > Hi all,
> >
> > Last week I had a question how I could change a set of points which are
> > situated in a regular grid into a polygon. I came to the conclusion that
> > probably the easiest way is to change the points into squares, so that
> they
> > fit exactly to each other, and then combine them into one polygon.
> >
> > For this I can use the alter object command to change the object for
> every
> > point into a rectangle, but with the alter object every record will be
> > changed one by one, which is much too slow, as I might have more then
> one
> > million records.
> > In the mapbasic help they recommand to use the Update command, where a
> > complete selection is changed. To change the object, they give the
> example:
> > Update "selection"
> > set object = CreatePoint(CentroidX(obj),CentroidY(obj))
> >
> > This brings me to the next question: If I want to use the update command
> to
> > change the object, and I want to change the object into a rectangle, how
> can
> > I do that? It seems to me that one can only use CreatePoint(),
> > CreateCircle(), CreateLine() and CreateText(). Why isn't there a
> > CreateRect() function?
> > (There is a Create rect command, but it seems that I can not use that
> > together with the update command?)
> >
> > Is there somebody who can help me with this, as the alter object command
> is
> > really not wotkable. (It would take some hours when you have a fast pc,
> with
> > a slow pc I really don't want to try this...)
> >
> > Thanks, Carla
> > ----------------------------------------------------------------------
> > To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
> > "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
> >
----------------------------------------------------------------------
To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
"unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
