There is an MBX on the www.directionsmag.com site called "Join the dots"
which (once you have made the table mappable) will join the dots and create
a polyline. From there, all you need to do is select the polylines and
"convert to regions"
Hope this helps,
Chris Perry
Systems Development CoOrdinator
Parks Victoria
Melbourne, Australia
Ph: 61 3 9816 6800
Fax: 61 3 9816 9876
[EMAIL PROTECTED]
-----Original Message-----
From: Max Fernandez [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 2 May 2000 6:41
To: V. VESTRI
Cc: '[EMAIL PROTECTED]'
Subject: Re: MI Points to polygon
Hi there folks,
I seen to have a similar problem than V�ronoque, and I am surprised that
such a simple topographers approach has on first sight not been considered
worthy enough by the MInfo developers.
Here is the situation:
Given a flat table (ie. excel) or text file representing all the nodes of
a polygon (region) organised in columns X1,Y1,X2,Y2
How do you go about to create the corresponding polygon in Mapinfo.
The only available procedures as far as I know are:
1/ create directly the regions by entering all the points with the
digitiser or mouse==>
very tedious and imprecise if you only have the numeric values and no
map representation to digitise
2/ make a mappeable table by create point objects from the first set of x,y
values; then from the second , etc... until you covered all the nodes. Then
create a region by manually digitising all linesegments on screen by
snapping to each point.===>
more precise than 1/ but also very tedious.
Imagine doing this for 500 regions!!!
In fact I (and it seems also V. Vestri) am looking for an application that
will allow to
1. either inport (or link to the file with) the points and automatically
create polygons
or
2. create a polygon or region by manually entering the respective nodes X,Y
values THROUGH THE KEYBOARD (typing the X,Y values).
I found and mbx along the line of 2. but instead of entering X,Y values,
the module asks for bearing and distances for each line segment.
Thanks in advance.
Max
"V. VESTRI" wrote:
> Grenoble, le 28 avril 2000
>
> Hi,
>
> I will try to explain my problem :
> - I have a table and a map with points
> - I want to link all of them for making a polygon
> Is there already an application will make this ?
> Otherwise, any ideas ?
>
> Thanks
>
> **************************************************
> V�ronique VESTRI
> Ing�nieur S.I.G.
> **************************************************
> ASCOPARG
> Surveillance de la Qualit� de l'air en R�gion Grenobloise
> 44, avenue Marcellin Berthelot
> BP 2734
> 38037 Grenoble Cedex 2
> FRANCE
>
> ----------------------------------------------------------------------
> To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
> "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
--
*********************************************************************
Max Fernandez
Departement Geologie, Koninklijk Museum voor Midden - Africa
D�partement de G�ologie, Mus�e royal de l'Afrique centrale
Department of Geology, Royal Museum for Central Africa
Steenweg op Leuven, 13 tl: +32 2 769 5431
B-3080 Tervuren fx: +32 2 769 5432
Belgium email: [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]
----------------------------------------------------------------------
To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
"unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
