Multi section polylines -> one section

[Raffael Hilber]

How can I convert multi-section polylines into polylines with only one
section?

(To find multi-section polylines and to split multi-section polylines
into polylines with only one section, I used the ToolBox from Routware.
But it splitted my polylines... )

Raffael Hilber

[Uffe Kousgaard]

Do you mean you have a multi-section polyline such as:

section 1: (1,1) - (2,2)
section 2: (2,2) - (3,3)

And you want one section (1,1) - (2,2) - (3,3) ?

I'm sure you can do that with the Objects - Combine in MapInfo. But it
requires exact same coordinates for (2,2) or you end back with the
multi-sectioned polyline.

Regards
Uffe Kousgaard

[Lawley, Russell S]

Raffael,

hi, i think we need some more info here but here are my solutions:.

you have a multisection polyline that you want to 'break up'?

by this do you mean:

a) two or more separate polyline objects that 'behave' as one object (ie one click and they all get hilighted {lines may not necessarily intersect})
>>if this is the case then select teh object (layer made editable first) and select Object > disaggregate

b) a polyline, that you wish to convert into numerous line objects?

There is a tool to do this on the directionsmag site (i think its called polybrk.zip and its by Andrew dressel)

c) a poly line in which unnecessary nodes are present (all points in a straight line?)

in which case you could try to use the thinning tool, but beware of losing nodes that do indicate changes in line direction?

hth

r

-----Original Message-----
From: mapi...@googlegroups.com [mailto:mapi...@googlegroups.com]On
Behalf Of Raffael Hilber
Sent: 18 January 2007 15:44
To: MapInfo-L
Subject: [MI-L] Multi section polylines -> one section

How can I convert multi-section polylines into polylines with only one
section?

(To find multi-section polylines and to split multi-section polylines
into polylines with only one section, I used the ToolBox from Routware.
But it splitted my polylines... )

Raffael Hilber

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[Raffael Hilber]

I see. "(2,2)" do not match in my table. Is there way to to remove
those small gaps automatically?
Raffael

[Patrick Palmier]

Hello,

You can work in two steps
disaggregate your multi-section polylines
with Objects->Disagreggate (keep an id value in the data for further reaggreagation)
then snap nodes with Inter-object snap nodes (enter the minimum necessary tolerance)
and then aggregate your polylines by aggragating the objects using id column

2007/1/18, Raffael Hilber <raffae...@gmx.ch>: