Macro rotate 

macro_rules! rotate {
    (a=$a:expr, v=[$x:expr, $y:expr, $z:expr], $($child:expr);+;) => { ... };
    ($a:expr, [$x:expr, $y:expr, $z:expr], $($child:expr);+;) => { ... };
    (a=[$x:expr, $y:expr, $z:expr], $($child:expr);+;) => { ... };
    ([$x:expr, $y:expr, $z:expr], $($child:expr);+;) => { ... };
    (a=$a:expr, $($child:expr);+;) => { ... };
    ($a:expr, $($child:expr);+;) => { ... };
}

Rotates children.

#params

a: Degrees of rotation around v when v is given else a vector of degrees for rotation around the x, y, and z axis or a scalar for 2D rotations.

v: Axis to rotate around.

children: A list of Scad objects separated and ending with a semicolon.

expansion: A Scad struct literal.

#patterns

rotate!([‘x: f64’, ‘y: f64’, ‘z: f64’], ‘children: Scad’;);

rotate!(a=[‘x: f64’, ‘y: f64’, ‘z: f64’], ‘children: Scad’;);

rotate!(a=‘z: f64’, ‘children: Scad’;);

rotate!(‘z: f64’, ‘children: Scad’;);

rotate!(’a: f64, [‘x: f64’, ‘y: f64’, ‘z: f64’], ‘children: Scad’;); rotate!(a=’a: f64, v=[‘x: f64’, ‘y: f64’, ‘z: f64’], ‘children: Scad’;);