[OSGeo-Discuss] Display of Multibeam data in open source gis
Chaitanya kumar CH
chaitanya.ch at gmail.com
Sat Jul 17 00:43:33 PDT 2010
GDAL/OGR supports tabs in CSV files from 1.7.0
You should be able to convert other formats including Mapinfo to other
formats using ogr2ogr.
On Sat, Jul 17, 2010 at 6:52 AM, Brent Fraser <bfraser at geoanalytic.com>wrote:
> You could use GDAL's ogr2ogr (I think it's packaged in FWTools) to convert
> CSV (http://www.gdal.org/ogr/drv_csv.html) to a shapefile. Or, depending
> on what your plans are for the data, you may want to load the points into
> PostGIS/Postgres for better performance, more flexibility in querying,
> Best Regards,
> Brent Fraser
> > 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.
> > Am i missing an import step in either package which would import these
> > data in either format?
> > IS there a mid to shape converter for point data that might solve my
> > problem (I've tried FWtools)?
> > am i exceeding the display capability of either/both packages?
> > _______________________________________________
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Chaitanya kumar CH.
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