[Freegis-list] Which OS GIS package to edit/query shapefiles?

[Paolo Cavallini]

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I think you basically have two choices:
1. qgis (simpler; does not print properly yet)
2. grass (more powerful, less easy to start).
Let us know your progresses.
All the best.
pc

At 02:10, venerdì 10 dicembre 2004, Brent Wood has probably written:
> I have a coastline as a shapefile.
>
> I want to draw lines across various bays.estuaries & harbours to determine
> their areas.
>
>
> Is there an OS GIS tool that will let me graphically interact with the
> data, draw lines with the mouse, merge these lines with existing
> lines/polygons and define the new polygons to derive the areas?
>
> I can see a way of using PostGIS by gridding the regions with small cells &
> running a query to sum the areas of the cells outside the coast &
> left/right/below/above certain locations but this is a very cumbersome
> approach, & is very non-graphical/interactive.
>
> I can't seem to do this with JUMP, in that I close a bay by moving one
> vertex, but can't get a clean topology with a new area (the bay) out of it.
>
> This is frustrating as the operation is trivial with my commercial GIS
> package, which I'm trying to replace with OS GIS software.
>
>
> Any advice/help appreciated.
>
> Brent Wood
>
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> Freegis-list mailing list
> Freegis-list at intevation.de
> https://intevation.de/mailman/listinfo/freegis-list

- -- 
Paolo Cavallini
cavallini at faunalia.it   www.faunalia.it   www.faunalia.com
Piazza Garibaldi 5 - 56025 Pontedera (PI), Italy   Tel: (+39)348-3801953
http://pkg-grass.alioth.debian.org/cgi-bin/wiki.pl
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