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fix attachments for linear_sweep

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This commit is contained in:
Adrian Mariano 2023-10-04 19:11:24 -04:00
parent bca6d69796
commit c0dbbdba73
1 changed files with 9 additions and 2 deletions
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11
attachments.scad
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@ -2499,7 +2499,7 @@ module attachable(
two_d=false,
axis=UP,override,
geom
) {
) {
dummy1 =
assert($children==2, "attachable() expects exactly two children; the shape to manage, and the union of all attachment candidates.")
assert(is_undef(anchor) || is_vector(anchor) || is_string(anchor), str("Got: ",anchor))
@ -3467,9 +3467,16 @@ function _find_anchor(anchor, geom) =
let(
newrgn = apply(mat, rgn),
newgeom = attach_geom(two_d=true, region=newrgn, extent=type=="extrusion_extent", cp=cp),
topmat = anchor.z!=0 ? []
: move(shift)*scale(scale)*zrot(-twist),
topgeom = anchor.z!=0? []
: attach_geom(two_d=true, region=apply(topmat,rgn), extent=type=="extrusion_extent", cp=cp),
top2d = anchor.z!=0? []
: _find_anchor(anchor_xy, topgeom),
result2d = _find_anchor(anchor_xy, newgeom),
pos = point3d(result2d[1], anchor.z*L/2),
vec = unit(point3d(result2d[2], anchor.z),UP),
vec = anchor.z==0? rot(from=UP,to=point3d(top2d[1],L/2)-point3d(result2d[1]),p=point3d(result2d[2]))
: unit(point3d(result2d[2], anchor.z),UP),
oang = atan2(vec.y,vec.x) + 90
)
[anchor, pos, vec, oang]