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Merge pull request #518 from adrianVmariano/master

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skin doc tweak
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Revar Desmera 2021-04-25 01:40:56 -07:00 committed by GitHub
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@ -995,6 +995,7 @@ module sweep(shape, transforms, closed=false, caps, style="min_edge", convexity=
// Function&Module: path_sweep()
// Usage: As module
// path_sweep(shape, path, <method>, <normal=>, <closed=>, <twist=>, <twist_by_length=>, <symmetry=>, <last_normal=>, <tangent=>, <relaxed=>, <caps=>, <style=>, <convexity=>, <transforms=>, <anchor=>, <cp=>, <spin=>, <orient=>, <extent=>) <attachments>;
// Usage: As function
// vnf = path_sweep(shape, path, <method>, <normal=>, <closed=>, <twist=>, <twist_by_length=>, <symmetry=>, <last_normal=>, <tangent=>, <relaxed=>, <caps=>, <style=>, <convexity=>, <transforms=>);
// Description:
// Takes as input a 2D polygon path, and a 2d or 3d path and constructs a polyhedron by sweeping the shape along the path.
@ -1289,6 +1290,19 @@ module sweep(shape, transforms, closed=false, caps, style="min_edge", convexity=
// path_sweep(region,
// circle(r=16,$fn=75),closed=true,
// twist=360/5*2,symmetry=5);
// Example: Cutting a cylinder with a curved path. Note that in this case, the incremental method produces just a slight twist but the natural method produces an extreme twist. But manual specification produces no twist, as desired:
// $fn=90;
// r=8;
// thickness=1;
// len=21;
// curve = [for(theta=[0:4:359])
// [r*cos(theta), r*sin(theta), 10+sin(6*theta)]];
// difference(){
// cylinder(r=r, l=len);
// down(.5)cylinder(r=r-thickness, l=len+1);
// path_sweep(left(.05,square([1.1,1])), curve, closed=true,
// method="manual", normal=UP);
// }
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,
anchor="origin",cp,spin=0, orient=UP, extent=false)