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48 lines
1.3 KiB
OpenSCAD
48 lines
1.3 KiB
OpenSCAD
use <polyline2d.scad>
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tri_side_leng = 20;
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tris_per_line = 10;
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lines = 3;
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line_width = 1;
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points = [[10, -6], [-6.5, -6], [-3, 0], [0, 0]];
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// points = [[0, 0], [1.5, 2.5], [1.5, -6], [-4, -6], [-6.5, 0]];
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triangle_splice(tri_side_leng, tris_per_line, lines, line_width)
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triangle_pattern(points, line_width);
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module triangle_pattern(points, line_width) {
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polyline2d(points, line_width);
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rotate([0, 0, 120]) polyline2d(points, line_width);
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rotate([0, 0, 240]) polyline2d(points, line_width);
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}
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module triangle_splice_one_line(tri_leng, tris, line_width) {
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half_leng = tri_leng / 2;
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height = half_leng * sqrt(3);
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hd3 = height / 3;
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for(i = [0 : tris - 1]) {
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x_offset = half_leng * i;
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is_even = i % 2 == 0;
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translate([x_offset, is_even ? 0 : hd3, 0])
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mirror([0, is_even ? 0 : 1, 0])
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children();
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}
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}
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module triangle_splice(length, tris_per_line, lines, line_width = 1) {
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half_leng = length / 2;
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height = half_leng * sqrt(3);
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hd3 = height / 3;
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for(i = [0 : lines - 1]) {
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is_even = i % 2 == 0;
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hoffset = height * i;
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translate([0, is_even ? hoffset : hoffset + hd3])
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mirror([0, is_even ? 0 : 1, 0])
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triangle_splice_one_line(length, tris_per_line, line_width)
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children();
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}
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} |