# m_shearing

The dir changed since 2.0.

Generate a 4x4 transformation matrix which can pass into `multmatrix` to shear all child elements along the X-axis, Y-axis, or Z-axis in 3D.

Since: 1.1

## Parameters

• `sx` : An array `[SHy, SHz]`. The new coordinates of child elements are `(x + SHy * y + SHz * z, y, z)`.
• `sy` : An array `[SHx, SHz]`. The new coordinates of child elements are `(x, y + SHx * x + SHz * z, z)`.
• `sz` : An array `[SHx, SHy]`. The new coordinates of child elements are `(x, y, z + SHx * x + SHy * y)`.

## Examples

``````use <matrix/m_shearing.scad>;

color("red") {
multmatrix(m_shearing(sx = [1, 0]))
cube(1);

translate([2, 0, 0]) multmatrix(m_shearing(sx = [0, 1]))
cube(1);

translate([4, 0, 0]) multmatrix(m_shearing(sx = [1, 1]))
cube(1);
}

translate([0, -3, 0]) color("green") {
multmatrix(m_shearing(sy = [1, 0]))
cube(1);

translate([2, 0, 0]) multmatrix(m_shearing(sy = [0, 1]))
cube(1);

translate([4, 0, 0]) multmatrix(m_shearing(sy = [1, 1]))
cube(1);
}

translate([0, -5, 0]) color("blue") {
multmatrix(m_shearing(sz = [1, 0]))
cube(1);

translate([2, 0, 0]) multmatrix(m_shearing(sz = [0, 1]))
cube(1);

translate([4, 0, 0]) multmatrix(m_shearing(sz = [1, 1]))
cube(1);
}
``````