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A couple more examples

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Adrian Mariano 2022-01-17 11:21:42 -05:00
parent a4c3717e49
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rounding.scad
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@ -44,6 +44,8 @@ include <structs.scad>
// For circular rounding you can also use the `radius` parameter, which sets a circular rounding // For circular rounding you can also use the `radius` parameter, which sets a circular rounding
// radius. // radius.
// . // .
// For chamfers you can use the `flat` parameter, which sets the length of the chamfer edge.
// .
// The `"smooth"` method rounding also has a parameter that specifies how smooth the curvature match // The `"smooth"` method rounding also has a parameter that specifies how smooth the curvature match
// is. This parameter, `k`, ranges from 0 to 1, with a default of 0.5. Larger values give a more // is. This parameter, `k`, ranges from 0 to 1, with a default of 0.5. Larger values give a more
// abrupt transition and smaller ones a more gradual transition. If you set the value much higher // abrupt transition and smaller ones a more gradual transition. If you set the value much higher
@ -105,6 +107,7 @@ include <structs.scad>
// radius = rounding radius, only compatible with `method="circle"`. Can be a number or vector. // radius = rounding radius, only compatible with `method="circle"`. Can be a number or vector.
// cut = rounding cut distance, compatible with all methods. Can be a number or vector. // cut = rounding cut distance, compatible with all methods. Can be a number or vector.
// joint = rounding joint distance, compatible with `method="chamfer"` and `method="smooth"`. Can be a number or vector. // joint = rounding joint distance, compatible with `method="chamfer"` and `method="smooth"`. Can be a number or vector.
// flat = length of the flat edge created by chamfering, compatible with `method="chamfer"`. Can be a number of vector.
// k = continuous curvature smoothness parameter for `method="smooth"`. Can be a number or vector. Default: 0.5 // k = continuous curvature smoothness parameter for `method="smooth"`. Can be a number or vector. Default: 0.5
// closed = if true treat the path as a closed polygon, otherwise treat it as open. Default: true. // closed = if true treat the path as a closed polygon, otherwise treat it as open. Default: true.
// verbose = if true display rounding scale factors that show how close roundovers are to overlapping. Default: false // verbose = if true display rounding scale factors that show how close roundovers are to overlapping. Default: false
@ -259,6 +262,23 @@ include <structs.scad>
// cut=chamfcut), // cut=chamfcut),
// radius=radii); // radius=radii);
// stroke(path2, closed=true); // stroke(path2, closed=true);
// Example(2D): Specifying by corner index. Use {{list_set()}} to construct the full chamfer cut list.
// path = star(47, ir=25, or=50); // long path, lots of corners
// chamfind = [8, 28, 60]; // But only want 3 chamfers
// chamfcut = list_set([],chamfind,[10,13,15],minlen=len(path)-1);
// rpath = round_corners(path, cut=chamfcut, method="chamfer");
// polygon(rpath);
// Example(2D): Two-pass to chamfer and round by index. Use {{repeat_entries()}} to correct for first pass chamfers.
// $fn=32;
// path = star(47, ir=25, or=50); // long path, lots of corners
// chamfind = [8, 28, 60]; // But only want 3 chamfers
// roundind = [7,9,27,29,59,61]; // And 6 roundovers
// chamfcut = list_set([],chamfind,[10,13,15],minlen=len(path)-1);
// roundcut = list_set([],roundind,repeat(8,6),minlen=len(path)-1);
// dups = list_set([], chamfind, repeat(2,len(chamfind)), dflt=1, minlen=len(path)-1);
// rpath1 = round_corners(path, cut=chamfcut, method="chamfer");
// rpath2 = round_corners(rpath1, cut=repeat_entries(roundcut,dups));
// polygon(rpath2);
module round_corners(path, method="circle", radius, cut, joint, flat, k, closed=true, verbose=false) {no_module();} module round_corners(path, method="circle", radius, cut, joint, flat, k, closed=true, verbose=false) {no_module();}
function round_corners(path, method="circle", radius, cut, joint, flat, k, closed=true, verbose=false) = function round_corners(path, method="circle", radius, cut, joint, flat, k, closed=true, verbose=false) =
assert(in_list(method,["circle", "smooth", "chamfer"]), "method must be one of \"circle\", \"smooth\" or \"chamfer\"") assert(in_list(method,["circle", "smooth", "chamfer"]), "method must be one of \"circle\", \"smooth\" or \"chamfer\"")