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doc tweaks

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This commit is contained in:
Adrian Mariano
2021-10-07 21:31:58 -04:00
parent dbec028bd1
commit 9bb22dc7c5
6 changed files with 185 additions and 105 deletions
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skin.scad
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@@ -276,12 +276,12 @@
// Example(FlatSpin,VPD=32,VPT=[1.2,4.3,2]): Another "distance" example:
// off = [0,2];
// shape = turtle(["right",45,"move", "left",45,"move", "left",45, "move", "jump", [.5+sqrt(2)/2,8]]);
// rshape = rot(180,cp=centroid(shape)+off, p=shape);
// rshape = rot(180,cp=polygon_centroid(shape)+off, p=shape);
// skin([shape,rshape],z=[0,4], method="distance",slices=10,refine=15);
// Example(FlatSpin,VPD=32,VPT=[1.2,4.3,2]): Slightly shifting the profile changes the optimal linkage
// off = [0,1];
// shape = turtle(["right",45,"move", "left",45,"move", "left",45, "move", "jump", [.5+sqrt(2)/2,8]]);
// rshape = rot(180,cp=centroid(shape)+off, p=shape);
// rshape = rot(180,cp=polygon_centroid(shape)+off, p=shape);
// skin([shape,rshape],z=[0,4], method="distance",slices=10,refine=15);
// Example(FlatSpin,VPD=444,VPT=[0,0,50]): This optimal solution doesn't look terrible:
// prof1 = path3d([[-50,-50], [-50,50], [50,50], [25,25], [50,0], [25,-25], [50,-50]]);
@@ -1589,7 +1589,7 @@ function _skin_tangent_match(poly1, poly2) =
swap = len(poly1)>len(poly2),
big = swap ? poly1 : poly2,
small = swap ? poly2 : poly1,
curve_offset = centroid(small)-centroid(big),
curve_offset = polygon_centroid(small)-polygon_centroid(big),
cutpts = [for(i=[0:len(small)-1]) _find_one_tangent(big, select(small,i,i+1),curve_offset=curve_offset)],
shift = last(cutpts)+1,
newbig = polygon_shift(big, shift),