[gdal-dev] weeding out x,y,z points

[Joaquim Luis]

nicholas.g.lawrence at mainroads.qld.gov.au wrote:
> A client has a very large (millions of records) ascii file consisting
> solely of x,y,z co-ordinates.
> 
> They would like to reduce the number of records by weeking out points that
> are too close to each other.
> 
> Can GDAL or OGR weed out 3D points based on proximity to each other?


A job for GMT's blockmean or blockmedian.

Joaquim Luis