Profiles — API

Source: src/ut_profile.scad. For how to use these, see usage/profiles.md.

prof = ["utprof", outer, inner, meta]

Read a profile through the accessors, not by index.

Constructors


`ut_round(od = undef, id = undef, wall = undef, n = undef, a0 = 0, split = undef)`	A round tube from exactly two of `od`, `id`, `wall`. `n` sets the point count (default from `$fa`/`$fs`), `a0` the first point’s angle. `split = [a, b]` removes the angles from `a` to `b` and makes a C-section.
`ut_rod(d, n = undef, a0 = 0)`	A solid round section, no bore.
`ut_profile(outer, inner = undef, meta = [])`	Any section from 2D loops. Asserts `PROF-1` and `PROF-2`.

	returns
`ut_prof_outer(p)`	the outer loop
`ut_prof_inner(p)`	the inner loop, or `undef`
`ut_prof_meta(p)`	the `[key, value]` list
`ut_prof_od(p)`, `ut_prof_id(p)`, `ut_prof_wall(p)`	the declared dimension, or `undef`
`ut_prof_symmetry(p)`	the declared symmetry order, default 0
`ut_prof_hollow(p)`	`true` if there is an inner loop
`ut_prof_open(p)`	`true` for a split section
`ut_prof_thin(p)`	`true` if the declared wall is below `ut_min_wall()`

Two measurements live in other modules:

	returns
`ut_prof_reach(prof)`	the farthest outer point from the centre (`src/ut_check.scad`)
`ut_bore_inradius(prof)`	the radius of the largest circle inside the bore polygon, 0 for a rod (`src/ut_net.scad`)

A region is a list of loops, which ut_sweep takes.

	returns
`ut_solid_rgn(p)`	`[outer, inner]`, or `[outer]` for a rod
`ut_shell_rgn(p)`	`[outer]`; `[]` for a split section
`ut_bore_rgn(p)`	`[inner]`; `[]` for a rod or a split section