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99 lines
2.3 KiB
Markdown
99 lines
2.3 KiB
Markdown
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# path_scaling_sections
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Given a edge path with the first point [x, 0, 0] or [0, y, 0] at the outline of a shape. This function use the path to calculate scaling factors and returns all scaled sections. Combined with the `polysections` module, you can create a extrusion with the path as an edge.
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**Since:** 1.2.
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## Parameters
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- `shape_pts` : A list of points represent a shape.
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- `edge_path` : A list of points represent the edge path.
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## Examples
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include <hull_polyline3d.scad>;
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include <shape_taiwan.scad>;
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include <path_scaling_sections.scad>;
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include <m_scaling.scad>;
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include <polysections.scad>;
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taiwan = shape_taiwan(100);
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fst_pt = [13, 0, 0];
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edge_path = [
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fst_pt,
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fst_pt + [0, 0, 10],
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fst_pt + [10, 0, 20],
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fst_pt + [8, 0, 30],
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fst_pt + [12, 0, 40],
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fst_pt + [0, 0, 50],
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fst_pt + [0, 0, 60]
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];
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#hull_polyline3d(edge_path);
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polysections(path_scaling_sections(taiwan, edge_path));
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include <hull_polyline3d.scad>;
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include <shape_taiwan.scad>;
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include <path_scaling_sections.scad>;
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include <m_scaling.scad>;
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include <polysections.scad>;
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include <bezier_curve.scad>;
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taiwan = shape_taiwan(100);
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fst_pt = [13, 0, 0];
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edge_path = bezier_curve(0.05, [
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fst_pt,
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fst_pt + [0, 0, 10],
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fst_pt + [10, 0, 20],
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fst_pt + [8, 0, 30],
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fst_pt + [12, 0, 40],
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fst_pt + [0, 0, 50],
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fst_pt + [0, 0, 60]
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]);
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#hull_polyline3d(edge_path);
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polysections(path_scaling_sections(taiwan, edge_path));
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include <shape_taiwan.scad>;
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include <path_scaling_sections.scad>;
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include <m_scaling.scad>;
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include <polysections.scad>;
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include <bezier_curve.scad>;
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include <rotate_p.scad>;
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taiwan = shape_taiwan(100);
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fst_pt = [13, 0, 0];
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edge_path = bezier_curve(0.05, [
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fst_pt,
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fst_pt + [0, 0, 10],
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fst_pt + [10, 0, 20],
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fst_pt + [8, 0, 30],
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fst_pt + [12, 0, 40],
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fst_pt + [0, 0, 50],
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fst_pt + [0, 0, 60]
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]);
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leng = len(edge_path);
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twist = 90;
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twist_step = twist / leng;
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sections = path_scaling_sections(taiwan, edge_path);
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rotated_sections = [
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for(i = [0:leng - 1])
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[
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for(p = sections[i])
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rotate_p(p, twist_step * i)
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]
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];
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polysections(rotated_sections);
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