[GRASSLIST:5878] Re: How to Create Proportional Symbols for Concentrations?

[Hamish]

> I've managed to import a dbf table of PAH concentrations for sample
> locations into Grass 6.0 using db.connect driver=dbf and then v.in.db
> x=Longitude y=Latitude key=PAH_ppm. Is there a way to symbolize the
> vector points so that their sizes are proportional to their
> concentration values?


Sure, use 'd.vect.chart ctype=pie sizecol=' with only one data column.

Alternatively use d.vect or v.buffer+v.patch looped in a script?



Hamish