thi.ng.geom.ptf — thi.ng/geom 1.0.0-RC3

align-frames clj/s

(align-frames [points tangents norms bnorms])

Takes a vector of PTFs (as returned by compute-frames) and re-aligns all frames such that the orientation of the first and last are the same. Returns updated PTFs.

compute-first-frame clj/s

(compute-first-frame t)

Takes a tangent vector (normalized dir between 2 path points) and returns a suitable normal and binormal vector.

compute-frame clj/s

(compute-frame tangents norms bnorms i)

compute-frames clj/s

(compute-frames points)

Takes a seq of 3d points and returns vector of its PTFs. The result is a vector of 4 elements: [points tangents normals binormals].

compute-tangents clj/s

(compute-tangents points)

Takes a seq of path points and computes their tangents (pairwise normalized direction vectors).

sweep-mesh clj/s

(sweep-mesh points profile)

(sweep-mesh points profile opts)

Like sweep-profile-faces, but returns result as mesh.

sweep-point clj/s

(sweep-point p n b [qx qy])

Takes a path point, a PTF normal & binormal and a profile point. Returns profile point projected on path (point).

sweep-profile clj/s

(sweep-profile profile attribs opts [points _ norms bnorms])

sweep-profile-faces clj/s

(sweep-profile-faces points profile)

(sweep-profile-faces points profile {:keys [attribs align?] :as opts})

Takes a list of path points and seq of 2D profile vertices to sweep along path and optional map of sweep & vertex attrib options. Returns vector of raw faces (each face a vector of [verts attribs]).

sweep-strand clj/s

(sweep-strand [p _ n b] r theta delta profile opts)

sweep-strand-mesh clj/s

(sweep-strand-mesh base r strands twists profile)

(sweep-strand-mesh base r strands twists profile opts)

sweep-strands clj/s

(sweep-strands base r strands twists profile opts)