Es mejor digitalizar una vez más el mapa, porque es muy costoso en tiempo corregir el mapa, y se pierde mucha información entre más se edita el mapa.
Se puede editar mucho más facilmente en el CAD, seguiendo las instrucciones normales de digitalización.
un solo nodo para distintos segmentos.
un solo semento parea dividir los predios,
un nodo por cada fin de segmento.
Carlos Jimenez
Esp. SIG
>From: Reinaldo Paul Perez Machado <[EMAIL PROTECTED]>
>Reply-To: "Ilwis-List" <[EMAIL PROTECTED]>
>To: Ilwis-List <[EMAIL PROTECTED]>, ILWIS <[EMAIL PROTECTED]>, Ilwis Support <[EMAIL PROTECTED]>
>Subject: (ilwis-list) Help importing polygon/segments!
>Date: Mon, 12 Mar 2001 18:59:35 -0300
>
>Hi all:
>
>Some days ago I have posted this message, and even sent it directly to
>some of you. Till now, unfortunatelly I have not had any reply. Can you
>please take a minute to write down your oppinion. Is this possible to
>solve this situation with ILWIS or not. I would appreciate very much any
>aid you can provide.
>
>Please, some help is required. We are trying to import a bunch of
>polygons (parcel map) that was digitized in Microstation using
>photogrametry. So the first step was convert them to AutoCAD DXF. Then
>we imported into ILWIS, so far so good, they came in nicely, as
>polygons, the only problem is that the digitizing was poorly done, so
>the area is full of micro areas, duplicate lines, and closed polygons
>separated by a gap of 15 to 30 cm even though they are closed, that is a
>line that should be one, or at least two at the same exact position and
>length. In reality they are two parallel boundary lines, separated just
>a few centimeters. We converted the polygon map to segment, then applied
>the tunneling with 1 m (more then enough), removing superfluous nodes,
>the resulting map was not distorted, and even reduced a bit of size
>(some nodes where removed), but the micro areas and the duplicated
>parallel sides remain the same. Can you recommend something to solve
>this problem? Trying to repair the polygon map manually is more costly
>than doing the whole work again using correct digitizing techniques!
>
>Thanks, in advance, for your help. Best regards,
>
>Reinaldo
>
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