dotSCAD/docs/lib3x-ptf_torus.md

ptf_torus

Transforms a point inside a rectangle to a point of a torus. It can create things such as torus maze.

Since: 2.3

Parameters

• size : 2 value array [x, y], rectangle with dimensions x and y.
• point : The point to be transformed.
• radius : Torus [R, r].
• angle : Torus [A, a].
• twist : The number of degrees of through which the rectangle is twisted.

Examples

use <polyline_join.scad>
use <ptf/ptf_torus.scad>

size = [20, 10];
radius = [10, 5];
angle = [180, 180];
twist = 90;

rows = [
    for(y = [0:size.y])
        [for(x = [0:size.x]) [x, y]]
];

columns = [
    for(x = [0:size.x])
        [for(y = [0:size.y]) [x, y]]
];

for(line = rows) {
    transformed = [for(p = line) ptf_torus(size, p, radius, angle, twist)];
    polyline_join(transformed)
	    sphere(.25);
}

for(line = columns) {
    transformed = [for(p = line) ptf_torus(size, p, radius, angle, twist)];
    polyline_join(transformed)
	    sphere(.25);
}