Closepoints Alternatives

closepoints reviews and mentions

• Does anyone know how I could join all the spheres together to create a single curve? I am trying to use the hull() function.
  2 projects | /r/openscad | 26 Oct 2022

  https://github.com/rcolyer/closepoints - listed on the openscad.org libraries page

• A Christmasy coding challenge for you all!
  1 project | /r/openscad | 16 Dec 2021

  use // https://github.com/rcolyer/closepoints function curve(x, r) = sqrt(r^2 - x^2); function RotF(t) = RotZ(curve(t, 90) + t); function ShiftF(t) = Translate([0, curve(t+45,45), abs(t)]); function Outline(t) = [ each [for (a=[0:30:180]) [cos(a), 4+sin(a), 0]], each [for (a=[180:30:360]) [cos(a), -4+sin(a), 0]] ]; function PathMatrix(t) = AffMerge([RotF(t), ShiftF(t)]); for (j = [0:30:359]) { pointarrays = [for (t = [-90:0.2:0]) [for (p = Outline(t)) Affine(PathMatrix(t), p)] ]; rotate([0, 0, j]) ClosePoints(pointarrays); }

• High performance arbitrarily smooth shapes with ClosePoints
  1 project | /r/openscad | 25 Apr 2021

  I developed a library called ClosePoints which helps with making arbitrarily smooth designs which render in just seconds. All that it requires is that you be able to specify the outline points tracing out either a shape with no holes (a topological sphere) with ClosePoints, or a shape with one hole (a topological donut) with CloseLoop. As the example files on the github show, with the helper functions provided for translating and rotating lists of points, specifying shapes like this can be very compact and analogous to normal computational geometry operations. See for example the demo_roller_coaster.scad model which made the seemingly challenging path in the middle of this gif:

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