[OSGeo-Discuss] Display of Multibeam data in open source gis

[Markus Neteler]

On Sat, Jul 17, 2010 at 2:30 AM,  <cruiserad at comcast.net> wrote:
> am in a quandry,
>
> have dense/large multibeam files i wish to display i a GIS for various
> purposes, essentially XYZ files, in DD WGS84 coordinates, ASCII
> tab-delimited or Mapinfo mid-mif formats, up to 10-million points plus in a
> datset.
> 1. have tried GVsig and quantumGIS, but neither seems to like the ascii
> tab-delimited format.
> 2. Quantum does not like the Mid-mif files i have, and it appears GVsig does
> not take the format
>
> Everything open-source GIS seems to want CSV or shapefiles.

Find here a dedicated Wiki page for the GRASS software:
http://grass.osgeo.org/wiki/Import_XYZ

GRASS 6.4+ can meanwhile deal with extremely large data sets.

Markus