[cairo] Interpolate path points

[Lawrence D'Oliveiro]

On Thu, 17 Dec 2015 11:54:40 +0000, Diego Jesus wrote:

> Consider I have a closed path and I want to get 100 points that are
> in its border. I would then “request” all points at t*0.01 where t in
> [0,100].

How is the path defined as a function of t?

There is a parametric definition of individual straight lines and
Bézier curve segments, but not of the path as a whole.