[GRASS-user] How to find shortest distances from the

SGW00412 at nifty.com SGW00412 at nifty.com
Sat May 9 01:28:17 EDT 2009


Dear All

I thank for some useful advices.

So, I tried to use the 'v.distance' command.

Coordinate system of shoreline (300 lines) and the  investigation spot (259 
points) is wgs84.

# calc distance
v.distance from=investigation_points to=shoreline upload=dist column=distance

# view table
v.report map=investigation_points option=length

cat|distance|length
1|0.008047|0
2|0.007871|0
....
258|0.001226|0
259|0.001249|0

Column of distance includes decimal point...I don't understand why is it that 
value of the distance becomes the decimal point.

I want to genereate distances in a kilometer and a meter.

Give me some more advice...

Yasuo shimada


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