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Fixed anchor for extrude_2d_hollow.

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Revar Desmera 2019-05-03 11:32:40 -07:00
parent 6be09b7669
commit dcab23158a
1 changed files with 7 additions and 1 deletions
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paths.scad
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@ -228,10 +228,13 @@ module extrude_from_to(pt1, pt2, convexity=undef, twist=undef, scale=undef, slic
// height = height of extrusion. // height = height of extrusion.
// twist = degrees of twist, from bottom to top. // twist = degrees of twist, from bottom to top.
// slices = how many slices to use when making extrusion. // slices = how many slices to use when making extrusion.
// orient = Orientation of the spiral. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
// anchor = Alignment of the spiral. Use the constants from `constants.scad`. Default: `BOTTOM`.
// center = If given, overrides `anchor`. A true value sets `anchor=CENTER`, false sets `anchor=BOTTOM`.
// Example: // Example:
// extrude_2d_hollow(wall=2, height=100, twist=90, slices=50) // extrude_2d_hollow(wall=2, height=100, twist=90, slices=50)
// circle(r=40, $fn=6); // circle(r=40, $fn=6);
module extrude_2d_hollow(wall=2, height=50, twist=90, slices=60, center=undef, orient=ORIENT_Z, anchor=UP) module extrude_2d_hollow(wall=2, height=50, twist=90, slices=60, center=undef, orient=ORIENT_Z, anchor=BOTTOM)
{ {
orient_and_anchor([0,0,height], orient, anchor, center, chain=true) { orient_and_anchor([0,0,height], orient, anchor, center, chain=true) {
linear_extrude(height=height, twist=twist, slices=slices, center=true) { linear_extrude(height=height, twist=twist, slices=slices, center=true) {
@ -256,6 +259,9 @@ module extrude_2d_hollow(wall=2, height=50, twist=90, slices=60, center=undef, o
// h = height of the spiral to extrude along. // h = height of the spiral to extrude along.
// r = radius of the spiral to extrude along. // r = radius of the spiral to extrude along.
// twist = number of degrees of rotation to spiral up along height. // twist = number of degrees of rotation to spiral up along height.
// orient = Orientation of the spiral. Use the `ORIENT_` constants from `constants.scad`. Default: `ORIENT_Z`.
// anchor = Alignment of the spiral. Use the constants from `constants.scad`. Default: `BOTTOM`.
// center = If given, overrides `anchor`. A true value sets `anchor=CENTER`, false sets `anchor=BOTTOM`.
// Example: // Example:
// poly = [[-10,0], [-3,-5], [3,-5], [10,0], [0,-30]]; // poly = [[-10,0], [-3,-5], [3,-5], [10,0], [0,-30]];
// extrude_2dpath_along_spiral(poly, h=200, r=50, twist=1080, $fn=36); // extrude_2dpath_along_spiral(poly, h=200, r=50, twist=1080, $fn=36);