[Mapserver-users] adding objects

[Stepan Kafka]

Hi,
  current version of mapscript enables adding object to EXISTING shapefile
(I use it frequently).
The shapefile may be opened like this:

ms_newShapefileObj("filename", -2)

Stepan Kafka

> -----Pùvodní zpráva-----
> Od: mapserver-users-admin at lists.gis.umn.edu
> [mailto:mapserver-users-admin at lists.gis.umn.edu]za u¾ivatele Lowell
> Filak
> Odesláno: 3. prosince 2002 16:48
> Komu: Sven Jacobi; mapserver-users at lists.gis.umn.edu
> Pøedmìt: Re: [Mapserver-users] adding objects
>
>
> If by layer you mean shapefile:
> To "add" features to an existing shapefile you need to actually
> create a new shapefile object and loop through each of the
> features in the existing shapefile and add them to the new shapefile.
> Then before closing the shapefile object you can add new features
> to it and then overwrite the old shapefile with the new version.
> Why?
> There is more discussion in the archives regarding that but for
> the most part the original shapefile design (if I understand
> correctly) was for quick read access and not write access.
> There is a PerlMapscript example towards the top of (look for
> "Does the shapefile already exist or is it yet to exist."):
> http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?PerlMapScriptExamples35ex8
> And, yes, we actually use that script to add features to a shapefile.
> HTH
> Lowell F.
>
> The following message was sent by Sven Jacobi <jacobi at dfki.de> on
> Tue, 03 Dec 2002 11:48:31 +0100.
>
> > Hi,
> >
> > does anybody know whether it is possible to add objects to a
> certain layer?
> > It would be great if an user would have the possibility to add
> an object to
> > a map when he is sure that the map has to be "updated".
> >
> > Any ideas or experiences?
> >
> > Cheers,
> >
> > Sven
> >
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