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linear_extrude(height = 1, center = false, convexity = 1, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
multmatrix([[1, 0, 0, 0], [0, -1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
polygon(points = [[-0.5, -0.5], [1, -0.5], [1, 1], [-0.5, 0.5]], paths = undef, convexity = 1);
}
}
}
multmatrix([[1, 0, 0, 3], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
linear_extrude(height = 1, center = false, convexity = 1, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
multmatrix([[-1, 0, 0, 0], [0, -0.5, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
polygon(points = [[-0.5, -0.5], [1, -0.5], [1, 1], [-0.5, 0.5]], paths = undef, convexity = 1);
}
}
}
}
multmatrix([[1, 0, 0, 0], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
linear_extrude(height = 1, center = false, convexity = 1, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
multmatrix([[-1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
polygon(points = [[-0.5, -0.5], [1, -0.5], [1, 1], [-0.5, 0.5]], paths = undef, convexity = 1);
}
}
}
}
multmatrix([[1, 0, 0, 2], [0, 1, 0, 3], [0, 0, 1, 0], [0, 0, 0, 1]]) {
linear_extrude(height = 1, center = false, convexity = 1, scale = [1, 1], $fn = 0, $fa = 12, $fs = 2) {
multmatrix([[1, 0, 0, 0], [0, -1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]) {
group() {
polygon(points = [[-0.5, -0.5], [1, -0.5], [1, 1], [-0.5, 0.5]], paths = undef, convexity = 1);
}
}
}
}
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