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68 lines
1.5 KiB
Markdown
68 lines
1.5 KiB
Markdown
# paths2sections
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Given a list of paths, this function will return all cross-sections described by those paths. Combined with the `sweep` module, you can describe a more complex model.
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You paths should be indexed count-clockwisely.
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## Parameters
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- `paths` : A list of paths used to describe the surface of the model.
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## Examples
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use <paths2sections.scad>
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use <polyline_join.scad>
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use <sweep.scad>
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paths = [
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[[5, 0, 5], [15, 10, 10], [25, 20, 5]],
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[[-5, 0, 5], [-15, 10, 10], [-25, 20, 5]],
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[[-5, 0, -5], [-15, 10, -10], [-25, 20, -5]],
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[[5, 0, -5], [15, 10, -10], [25, 20, -5]]
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];
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sections = paths2sections(paths);
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sweep(sections);
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#for(path = paths) {
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polyline_join(path)
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sphere(.25);
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}
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use <bezier_curve.scad>
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use <paths2sections.scad>
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use <polyline_join.scad>
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use <sweep.scad>
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t_step = 0.05;
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paths = [
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bezier_curve(t_step,
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[[1.25, 0, 5], [5, 20, 5], [16, 20, -2], [18, 20, 10], [30, 15, 8]]
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),
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bezier_curve(t_step,
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[[-1.25, 0, 5], [0, 20, 5], [16, 22, -2], [18, 20, 10], [30, 25, 8]]
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),
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bezier_curve(t_step,
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[[-1.25, 0, -5], [0, 20, -5], [16, 20, 1], [18, 27, -3], [20, 27, -5]]
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),
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bezier_curve(t_step,
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[[1.25, 0, -5], [5, 20, -5], [16, 20, 1], [18, 17.5, -3], [20, 17.5, -5]]
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)
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];
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sections = paths2sections(paths);
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sweep(sections);
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#for(path = paths) {
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polyline_join(path)
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sphere(.25);
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}
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