[Freegis-list] ArcInfo to Free conversion

[Matt.Wilkie]

> > Is GRASS "vector topology" based? 
>
> Yes. However, in GRASS 5.0 it's limited to 2D vectors. 

No problem there, vectors in Arc are only 2D anyway. :)

Elevation values are emulated by attaching a database 
attribute to the line and populating it with whatever
your height is. This is okay for contours, where every
point on the line is the same height, but unusable for
anything else.



-matt
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Matt Wilkie * GIS Technician * Yukon Renewable Resources GIS
http://renres.gov.yk.ca/pubs/rrgis/