B-spline

B-spline is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

Task

Generate a B-spline curve with a list of 12 points and plot or save image.

Coordinates of control points:

   start=171,171 
   1 185,111, 
   2 202,109, 
   3 202,189 
   4 328,160 
   5 208,254 
   6 241,330 
   7 164,252 
   8 69,278 
   9 139,208 
   10 72,148 
   end=168,172

Rules!!!!

Do not use third party libraries or functions

See also

• B-splines

Julia

Choose BSpline D of 2, ie degree 1. <lang julia>using Graphics, Plots

Point(t::Tuple) = Vec2(Float64(t[1]), Float64(t[2])) const controlpoints = Point.([(171, 171), (185, 111), (202, 109), (202, 189), (328, 160),

   (208, 254), (241, 330), (164,252), (69, 278), (139, 208), (72, 148), (168, 172)])

plt = plot(map(a -> a.x, controlpoints), map(a -> a.y, controlpoints)) savefig(plt, "BSplineplot.png")