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Fixed anchoring of square and circle

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Revar Desmera 2019-06-16 23:53:59 -07:00
parent a38441a548
commit 446ea5c911
1 changed files with 2 additions and 1 deletions
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primitives.scad
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@ -45,6 +45,7 @@ module square(size, center=undef, anchor=FRONT+LEFT, spin=0) {
function square(size, center=undef, anchor=FRONT+LEFT, spin=0) = function square(size, center=undef, anchor=FRONT+LEFT, spin=0) =
let( let(
anchor = center==true? CENTER : center==false? FRONT+LEFT : anchor,
size = is_num(size)? [size,size] : point2d(size), size = is_num(size)? [size,size] : point2d(size),
s=size/2 s=size/2
) rot(spin, p=move(-vmul(anchor,s), p=[[-s.x,-s.y], [-s.x,s.y], [s.x,s.y], [s.x,-s.y]])); ) rot(spin, p=move(-vmul(anchor,s), p=[[-s.x,-s.y], [-s.x,s.y], [s.x,s.y], [s.x,-s.y]]));
@ -87,7 +88,7 @@ function circle(r=undef, d=undef, anchor=CENTER, spin=0) =
r = get_radius(r=r, d=d, dflt=1), r = get_radius(r=r, d=d, dflt=1),
sides = segs(r), sides = segs(r),
pts = [for (i=[0:1:sides-1]) let(a=360-i*360/sides) r*[cos(a),sin(a)]] pts = [for (i=[0:1:sides-1]) let(a=360-i*360/sides) r*[cos(a),sin(a)]]
) rot(spin, p=move(-vmul(anchor,s), p=pts)); ) rot(spin, p=move(-normalize(anchor)*r, p=pts));