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58 lines
1.3 KiB
Markdown
58 lines
1.3 KiB
Markdown
# m_shearing
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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.
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**Since:** 1.1
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## Parameters
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- `sx` : An array `[SHy, SHz]`. The new coordinates of child elements are `(x + SHy * y + SHz * z, y, z)`.
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- `sy` : An array `[SHx, SHz]`. The new coordinates of child elements are `(x, y + SHx * x + SHz * z, z)`.
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- `sz` : An array `[SHx, SHy]`. The new coordinates of child elements are `(x, y, z + SHx * x + SHy * y)`.
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## Examples
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use <matrix/m_shearing.scad>
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color("red") {
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multmatrix(m_shearing(sx = [1, 0]))
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cube(1);
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translate([2, 0, 0])
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multmatrix(m_shearing(sx = [0, 1]))
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cube(1);
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translate([4, 0, 0])
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multmatrix(m_shearing(sx = [1, 1]))
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cube(1);
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}
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translate([0, -3, 0]) color("green") {
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multmatrix(m_shearing(sy = [1, 0]))
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cube(1);
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translate([2, 0, 0])
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multmatrix(m_shearing(sy = [0, 1]))
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cube(1);
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translate([4, 0, 0])
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multmatrix(m_shearing(sy = [1, 1]))
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cube(1);
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}
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translate([0, -5, 0]) color("blue") {
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multmatrix(m_shearing(sz = [1, 0]))
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cube(1);
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translate([2, 0, 0])
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multmatrix(m_shearing(sz = [0, 1]))
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cube(1);
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translate([4, 0, 0])
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multmatrix(m_shearing(sz = [1, 1]))
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cube(1);
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}
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