josh/ichigo
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

Remove N=1 case from cubic interpolate

Browse source 
This lets Preslope and Postslope control slope either side of a
single point, which is probably more intuitive than just returning Y
of the point whenever Preslope and Postslope is provided.
This commit is contained in:
Josh Deprez 2021-10-05 10:24:01 +11:00
parent 74c208dc87
commit 0fb17676e2
1 changed files with 0 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
geom/spline.go
View file

@ -241,9 +241,6 @@ func (s *CubicSpline) Prepare() error {
// last segments of the spline. // last segments of the spline.
func (s *CubicSpline) Interpolate(x float64) float64 { func (s *CubicSpline) Interpolate(x float64) float64 {
N := len(s.Points) N := len(s.Points)
if N == 1 {
return s.Points[0].Y
}
if x < s.Points[0].X { if x < s.Points[0].X {
// Comes before the start of the spline, extrapolate // Comes before the start of the spline, extrapolate
return s.Points[0].Y + (x-s.Points[0].X)*s.Preslope return s.Points[0].Y + (x-s.Points[0].X)*s.Preslope