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Added centerpoint offsets to [xyz]rot() modules.

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Revar Desmera 2018-12-10 12:11:34 -08:00
parent 61d937c89b
commit 5fd6858e39
1 changed files with 29 additions and 4 deletions
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33
transforms.scad
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@ -107,22 +107,47 @@ module down(z=0) { translate([0,0,-z]) children(); }
module up(z=0) { translate([0,0,z]) children(); }
// Rotates children around the Z axis by the given number of degrees.
// Rotates children around the X axis by the given number of degrees.
// a = angle to rotate by in degrees.
// cp = centerpoint to rotate around. Default: [0,0,0]
// Example:
// xrot(90) cylinder(h=10, r=2, center=true);
module xrot(a=0) { rotate([a, 0, 0]) children(); }
module xrot(a=0, cp=undef) {
if (cp == undef) {
rotate([a, 0, 0]) children();
} else {
translate(cp) rotate([a, 0, 0]) translate(-cp) children();
}
}
// Rotates children around the Y axis by the given number of degrees.
// a = angle to rotate by in degrees.
// cp = centerpoint to rotate around. Default: [0,0,0]
// Example:
// yrot(90) cylinder(h=10, r=2, center=true);
module yrot(a=0) { rotate([0, a, 0]) children(); }
module yrot(a=0, cp=undef) {
if (cp == undef) {
rotate([0, a, 0]) children();
} else {
translate(cp) rotate([0, a, 0]) translate(-cp) children();
}
}
// Rotates children around the Z axis by the given number of degrees.
// a = angle to rotate by in degrees.
// cp = centerpoint to rotate around. Default: [0,0,0]
// Example:
// zrot(90) cube(size=[9,1,4], center=true);
module zrot(a=0) { rotate([0, 0, a]) children(); }
module zrot(a=0, cp=undef) {
if (cp == undef) {
rotate([0, 0, a]) children();
} else {
translate(cp) rotate([0, 0, a]) translate(-cp) children();
}
}
// Scales children by the given factor in the X axis.