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add uniform option to path_sweep

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Adrian Mariano 2022-02-14 22:58:50 -05:00
parent 42d186389c
commit cbf31d7d9c
1 changed files with 8 additions and 15 deletions
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skin.scad
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@ -843,6 +843,7 @@ module spiral_sweep(poly, h, r, turns=1, higbee, center, r1, r2, d, d1, d2, higb
// twist = amount of twist to add in degrees. For closed sweeps must be a multiple of 360/symmetry. Default: 0
// symmetry = symmetry of the shape when closed=true. Allows the shape to join with a 360/symmetry rotation instead of a full 360 rotation. Default: 1
// last_normal = normal to last point in the path for the "incremental" method. Constrains the orientation of the last cross section if you supply it.
// uniform = if set to false then compute tangents using the uniform=false argument, which may give better results when your path is non-uniformly sampled. This argument is passed to {{path_tangents()}}. Default: true
// tangent = a list of tangent vectors in case you need more accuracy (particularly at the end points of your curve)
// relaxed = set to true with the "manual" method to relax the orthogonality requirement of cross sections to the path tangent. Default: false
// caps = Can be a boolean or vector of two booleans. Set to false to disable caps at the two ends. Default: true
@ -1111,16 +1112,17 @@ module spiral_sweep(poly, h, r, turns=1, higbee, center, r1, r2, d, d1, d2, higb
// path_sweep(tri,path,profiles=true,width=.1);
module path_sweep(shape, path, method="incremental", normal, closed=false, twist=0, twist_by_length=true,
symmetry=1, last_normal, tangent, relaxed=false, caps, style="min_edge", convexity=10,
symmetry=1, last_normal, tangent, uniform=true, relaxed=false, caps, style="min_edge", convexity=10,
anchor="origin",cp="centroid",spin=0, orient=UP, atype="hull",profiles=false,width=1)
{
vnf = path_sweep(shape, path, method, normal, closed, twist, twist_by_length,
symmetry, last_normal, tangent, relaxed, caps, style);
symmetry, last_normal, tangent, uniform, relaxed, caps, style);
if (profiles){
assert(in_list(atype, _ANCHOR_TYPES), "Anchor type must be \"hull\" or \"intersect\"");
tran = path_sweep(shape, path, method, normal, closed, twist, twist_by_length,
symmetry, last_normal, tangent, relaxed,transforms=true);
symmetry, last_normal, tangent, uniform, relaxed,transforms=true);
echo_matrix(tran[0]);
attachable(anchor,spin,orient, vnf=vnf, extent=atype=="hull", cp=cp) {
for(T=tran) stroke([apply(T,path3d(shape))],width=width);
children();
@ -1132,18 +1134,8 @@ module path_sweep(shape, path, method="incremental", normal, closed=false, twist
}
module path_sweep_profiles(shape, path, method="incremental", normal, closed=false, twist=0, twist_by_length=true,
symmetry=1, last_normal, tangent, relaxed=false, width=1,caps,style,convexity,anchor,cp,spin,orient,atype)
{
tran = path_sweep(shape, path, method, normal, closed, twist, twist_by_length,
symmetry, last_normal, tangent, relaxed,transforms=true);
for(T=tran) stroke([apply(T,path3d(shape))],width=width);
}
function path_sweep(shape, path, method="incremental", normal, closed=false, twist=0, twist_by_length=true,
symmetry=1, last_normal, tangent, relaxed=false, caps, style="min_edge", transforms=false,
symmetry=1, last_normal, tangent, uniform=true, relaxed=false, caps, style="min_edge", transforms=false,
anchor="origin",cp="centroid",spin=0, orient=UP, atype="hull") =
assert(in_list(atype, _ANCHOR_TYPES), "Anchor type must be \"hull\" or \"intersect\"")
assert(!closed || twist % (360/symmetry)==0, str("For a closed sweep, twist must be a multiple of 360/symmetry = ",360/symmetry))
@ -1169,7 +1161,8 @@ function path_sweep(shape, path, method="incremental", normal, closed=false, twi
assert(is_undef(normal) || (is_vector(normal) && len(normal)==3) || (is_path(normal) && len(normal)==len(path) && len(normal[0])==3), "Invalid normal specified")
assert(is_undef(tangent) || (is_path(tangent) && len(tangent)==len(path) && len(tangent[0])==3), "Invalid tangent specified")
let(
tangents = is_undef(tangent) ? path_tangents(path,closed=closed) : [for(t=tangent) unit(t)],
tangents = is_undef(tangent) ? path_tangents(path,uniform=uniform,closed=closed) : [for(t=tangent) unit(t)],
fda= echo(tangents=tangents)echo(path=path),
normal = is_path(normal) ? [for(n=normal) unit(n)] :
is_def(normal) ? unit(normal) :
method =="incremental" && abs(tangents[0].z) > 1/sqrt(2) ? BACK : UP,