Re: [Gimp-user] 'Precision' Meaning

[Ofnuts <ofnuts gmx com>]

On 31/10/16 00:52, FierySwordswoman wrote:
> When creating a script for GIMP, using something like
> stroke.get_point_at_dist(...)
> it requires 2 floats: distance and 'precision for estimation'.
> What does 'precision for estimation' mean?
The point coordinates are obtained by an iterative algorithm that must 
be stopping when further iteration do not change the coordinates by some 
precision amount.

Typically I use .1 for the simple cases, and .1/N when I want a bit more 
accuracy, N being the number of anchors in the stroke.

Keep in mind that if you use the value of 
pdb.gimp_vectors_stroke_get_length(...) in 
pdb.gimp_vectors_stroke_get_point_at_dist(...) you may well get an 
invalid result (valid=False). I often use a facade method that returns 
the coordinates of the last anchor in this case.