Plots

_collectlines(points) -> (x1, x2 [, x3])

Collect point arrays

points = [[[p111, p112], [p121, p122], ...], [[p211, p212], [p221, p222], ...], ...]

into arrays

x1 = [p111, p121, ..., NaN, p211, p221, ..., NaN, ...]
x2 = [p112, p122, ..., NaN, p212, p222, ..., NaN, ...]

which can be passed to Makie's lines function.

_getnintervals(r, inintervals) -> (n1, n2)

Returns the number of intervals for each coordinate direction such that the Rectangle parameter r is divided into approximate squares. The longer side of r is divided into nintervals intervals.

_mergemeshes(meshes) -> mesh

Merges the meshes

[(coords, triangles), (coords, triangles), ...]

into a single mesh

(coords, triangles)

sample1d(f, a, b; rp=false, maxrecursion=15, maxangle=2.5, npoints=5, yscale=1, ir=false) -> [params, ] points

Simple adaptive sampling of mapping f on the interval from a to b. The interval is initially sampled at npoints and then refined recursively until either the angles are smaller than maxangle (in degrees) or the recursion depth reaches maxrecursion. The function returns the sampled points in a matrix. If rp=true, the function returns parameters and corresponding points.

Parameters for real valued functions only: Angles are evaluated using the scaling factor yscale. Use ir=true to insert roots.

@see adapted_grid.jl in PlotUtils.jl @see T. Bayer: Efficient plotting the functions with discontinuities