[GRASS-dev] v.surf.bspline density and distance estimates

[Markus Metz]

On Fri, Jun 16, 2017 at 11:28 AM, Paulo van Breugel <p.vanbreugel at gmail.com>
wrote:
>
> Hi devs, can anybody tell how v.surf.bspline computes the point density
and mean distance.

point density is the number of points divided by the size of the bounding
box of the points
mean distance is the square root of the size of the bounding box divided by
the number of points

> And what is the unit, pixels, as also used for length spline steps or
meters?

the unit is map unit, you can then figure out a reasonable resolution (in
map units) for the current region

Markus M

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