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add knot_tiles

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Justin Lin
2021-07-31 12:32:30 +08:00
parent a56cf44b4c
commit a8472c0831
1 changed files with 55 additions and 0 deletions
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examples/tiles/knot_tiles.scad Normal file
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use <experimental/tile_truchet.scad>;
use <arc.scad>;
use <line2d.scad>;
use <experimental/choose_children.scad>;
size = [50, 25];
tile_width = 5;
line_width = 1;
$fn = 12; // 4, 8, 12 ....
for(tile = tile_truchet(size)) {
x = tile[0];
y = tile[1];
i = tile[2];
choose_children(i) {
tile00(x, y, tile_width, line_width);
tile01(x, y, tile_width, line_width);
tile02(x, y, tile_width, line_width);
tile03(x, y, tile_width, line_width);
};
}
module tile00(x, y, tile_width, line_width) {
translate([x, y] * tile_width)
arc(0.5 * tile_width, [0, 90], line_width);
translate([x + 1, y + 1] * tile_width)
arc(0.5 * tile_width, [180, 270], line_width);
}
module tile01(x, y, tile_width, line_width) {
translate([x, y + 1] * tile_width)
arc(0.5 * tile_width, [270, 360], line_width);
translate([x + 1, y] * tile_width)
arc(0.5 * tile_width, [90, 180], line_width);
}
module tile02(x, y, tile_width, line_width) {
half_width = tile_width * 0.5;
translate([x, y] * tile_width) {
line2d([half_width, 0], [half_width, tile_width], line_width, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
line2d([0, half_width], [half_width - line_width, half_width], line_width, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
line2d([half_width + line_width, half_width], [tile_width, half_width], line_width, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
}
}
module tile03(x, y, tile_width, line_width) {
half_width = tile_width * 0.5;
translate([x, y] * tile_width) {
line2d([0, half_width], [tile_width, half_width], line_width, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
line2d([half_width, 0], [half_width, half_width - line_width], line_width, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
line2d([half_width, tile_width], [half_width, half_width + line_width], line_width, p1Style = "CAP_BUTT", p2Style = "CAP_BUTT");
}
}