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fix anchoring for textured case

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Adrian Mariano
2025-06-21 00:28:40 -04:00
parent 77b87040dc
commit cc169e0e23
1 changed files with 53 additions and 53 deletions
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106
skin.scad
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@@ -861,60 +861,60 @@ function linear_sweep(
assert(is_vector(shift, 2), str(shift))
assert(is_bool(caps) || is_bool_list(caps,2), "\ncaps must be boolean or a list of two booleans.")
let(
h = one_defined([h, height,l,length],"h,height,l,length",dflt=1)
)
!is_undef(texture)? _textured_linear_sweep(
region, h=h, caps=caps,
texture=texture, tex_size=tex_size,
counts=tex_reps, inset=tex_inset,
rot=tex_rot, tex_scale=tex_depth,
twist=twist, scale=scale, shift=shift,
style=style, samples=tex_samples,
anchor=anchor, spin=spin, orient=orient
) :
let(
caps = is_bool(caps) ? [caps,caps] : caps,
anchor = center==true? "origin" :
center == false? "original_base" :
default(anchor, "original_base"),
h = one_defined([h, height,l,length],"h,height,l,length",dflt=1),
regions = region_parts(region),
slices = default(slices, max(1,ceil(abs(twist)/5))),
scale = is_num(scale)? [scale,scale] : point2d(scale),
topmat = move(shift) * scale(scale) * rot(-twist),
trgns = [
for (rgn = regions) [
for (path = rgn) let(
p = list_unwrap(path),
path = is_undef(maxseg)? p : [
for (seg = pair(p,true)) each
let( steps = ceil(norm(seg.y - seg.x) / maxseg) )
lerpn(seg.x, seg.y, steps, false)
]
) apply(topmat, path)
]
],
vnf = vnf_join([
for (rgn = regions)
for (pathnum = idx(rgn)) let(
p = list_unwrap(rgn[pathnum]),
path = is_undef(maxseg)? p : [
for (seg=pair(p,true)) each
let(steps=ceil(norm(seg.y-seg.x)/maxseg))
lerpn(seg.x, seg.y, steps, false)
],
verts = [
for (i=[0:1:slices]) let(
u = i / slices,
scl = lerp([1,1], scale, u),
ang = lerp(0, -twist, u),
off = lerp([0,0,-h/2], point3d(shift,h/2), u),
m = move(off) * scale(scl) * rot(ang)
) apply(m, path3d(path))
]
) vnf_vertex_array(verts, caps=false, col_wrap=true, style=style),
if (caps[0]) for (rgn = regions) vnf_from_region(rgn, down(h/2), reverse=true),
if (caps[1]) for (rgn = trgns) vnf_from_region(rgn, up(h/2), reverse=false)
]),
vnf = !is_undef(texture)?
_textured_linear_sweep(
region, h=h, caps=caps,
texture=texture, tex_size=tex_size,
counts=tex_reps, inset=tex_inset,
rot=tex_rot, tex_scale=tex_depth,
twist=twist, scale=scale, shift=shift,
style=style, samples=tex_samples)
: let(
caps = is_bool(caps) ? [caps,caps] : caps,
anchor = center==true? "origin" :
center == false? "original_base" :
default(anchor, "original_base"),
slices = default(slices, max(1,ceil(abs(twist)/5))),
scale = is_num(scale)? [scale,scale] : point2d(scale),
topmat = move(shift) * scale(scale) * rot(-twist),
trgns = [
for (rgn = regions) [
for (path = rgn) let(
p = list_unwrap(path),
path = is_undef(maxseg)? p : [
for (seg = pair(p,true)) each
let( steps = ceil(norm(seg.y - seg.x) / maxseg) )
lerpn(seg.x, seg.y, steps, false)
]
) apply(topmat, path)
]
],
vnf = vnf_join([
for (rgn = regions)
for (pathnum = idx(rgn)) let(
p = list_unwrap(rgn[pathnum]),
path = is_undef(maxseg)? p : [
for (seg=pair(p,true)) each
let(steps=ceil(norm(seg.y-seg.x)/maxseg))
lerpn(seg.x, seg.y, steps, false)
],
verts = [
for (i=[0:1:slices]) let(
u = i / slices,
scl = lerp([1,1], scale, u),
ang = lerp(0, -twist, u),
off = lerp([0,0,-h/2], point3d(shift,h/2), u),
m = move(off) * scale(scl) * rot(ang)
) apply(m, path3d(path))
]
) vnf_vertex_array(verts, caps=false, col_wrap=true, style=style),
if (caps[0]) for (rgn = regions) vnf_from_region(rgn, down(h/2), reverse=true),
if (caps[1]) for (rgn = trgns) vnf_from_region(rgn, up(h/2), reverse=false)
])
)
vnf,
regparts = flatten(regions),
sizes = [0,each cumsum([for(entry=regparts) len(entry)])],
ganchors = [