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fix vnf_validate to detect non-coplanar; fix docs

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Adrian Mariano 2024-01-27 19:39:16 -05:00
parent 1be22e4c3a
commit 4e62854909
1 changed files with 4 additions and 9 deletions
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13
vnf.scad
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@ -1743,7 +1743,7 @@ module debug_vnf(vnf, faces=true, vertices=true, opacity=0.5, size=1, convexity=
// e = [ 50,-50, 50];
// vnf = vnf_from_polygons([
// [a, b, e], [a, c, b], [a, d, c], [a, e, d], [b, c, d, e]
// ]);
// ],fast=true);
// vnf_validate(vnf);
// Example(3D,Edges): MULTCONN Errors; More Than Two Faces Attached to the Same Edge. This confuses CGAL, and can lead to failed renders.
// vnf = vnf_triangulate(linear_sweep(union(square(50), square(50,anchor=BACK+RIGHT)), height=50));
@ -1948,14 +1948,9 @@ function _vnf_validate(vnf, show_warns=true, check_isects=false) =
) hole_edges? issues :
let(
nonplanars = unique([
for (i = idx(faces)) let(
face = faces[i],
area = face_areas[i],
faceverts = [for (k=face) varr[k]]
)
if (is_num(area) && abs(area) > EPSILON)
if (!is_coplanar(faceverts))
_vnf_validate_err("NONPLANAR", face)
for (i = idx(faces))
if (is_undef(face_areas[i]))
_vnf_validate_err("NONPLANAR", faces[i])
]),
issues = concat(issues, nonplanars)
) issues;