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Made tube() anchor CENTER by default.

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Garth Minette 2022-03-29 16:29:58 -07:00
parent 0dfec1e8ff
commit 241ce402c0
1 changed files with 3 additions and 1 deletions
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shapes3d.scad
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@ -1500,7 +1500,7 @@ module zcyl(
// --- // ---
// od = Outer diameter of tube. // od = Outer diameter of tube.
// id = Inner diameter of tube. // id = Inner diameter of tube.
// wall = horizontal thickness of tube wall. Default 0.5 // wall = horizontal thickness of tube wall. Default 1
// or1 = Outer radius of bottom of tube. Default: value of r) // or1 = Outer radius of bottom of tube. Default: value of r)
// or2 = Outer radius of top of tube. Default: value of r) // or2 = Outer radius of top of tube. Default: value of r)
// od1 = Outer diameter of bottom of tube. // od1 = Outer diameter of bottom of tube.
@ -1540,10 +1540,12 @@ module tube(
orr2 = get_radius(r1=or2, r=or, d1=od2, d=od, dflt=undef); orr2 = get_radius(r1=or2, r=or, d1=od2, d=od, dflt=undef);
irr1 = get_radius(r1=ir1, r=ir, d1=id1, d=id, dflt=undef); irr1 = get_radius(r1=ir1, r=ir, d1=id1, d=id, dflt=undef);
irr2 = get_radius(r1=ir2, r=ir, d1=id2, d=id, dflt=undef); irr2 = get_radius(r1=ir2, r=ir, d1=id2, d=id, dflt=undef);
wall = default(wall, 1);
r1 = default(orr1, u_add(irr1,wall)); r1 = default(orr1, u_add(irr1,wall));
r2 = default(orr2, u_add(irr2,wall)); r2 = default(orr2, u_add(irr2,wall));
ir1 = default(irr1, u_sub(orr1,wall)); ir1 = default(irr1, u_sub(orr1,wall));
ir2 = default(irr2, u_sub(orr2,wall)); ir2 = default(irr2, u_sub(orr2,wall));
assert(all_defined([r1, r2, ir1, ir2]), "Must specify two of inner radius/diam, outer radius/diam, and wall width.");
assert(ir1 <= r1, "Inner radius is larger than outer radius."); assert(ir1 <= r1, "Inner radius is larger than outer radius.");
assert(ir2 <= r2, "Inner radius is larger than outer radius."); assert(ir2 <= r2, "Inner radius is larger than outer radius.");
sides = segs(max(r1,r2)); sides = segs(max(r1,r2));