[postgis-users] Expanding a geometry

[Nicolas Ribot]

> scale() and affine() should do that.
> the transform-process doesn't depend on complexity of geometry. it
> should work for every geometry, since it is just a transforming of
> single point the geometry consists of.
> the topology will not change during transforming.
> postgis does the same while transforming from one coordinate system to
> another.
>

Thanx for the hint, Ronald.
I will look closely at this solution

Nicolas