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Fixed references to skew_*()

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Revar Desmera
2019-12-19 23:26:54 -08:00
parent 17867c9dc1
commit 91b0e58093
4 changed files with 29 additions and 17 deletions
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affine.scad
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@@ -276,11 +276,31 @@ function affine3d_mirror(v) =
];
// Function: affine3d_skew()
// Usage:
// mat = affine3d_skew([sxy], [sxz], [syx], [xyz], [szx], [szy]);
// Description:
// Returns the 4x4 affine3d matrix to perform a skew transformation.
// Arguments:
// sxy = Skew factor multiplier for skewing along the X axis as you get farther from the Y axis. Default: 0
// sxz = Skew factor multiplier for skewing along the X axis as you get farther from the Z axis. Default: 0
// syx = Skew factor multiplier for skewing along the Y axis as you get farther from the X axis. Default: 0
// syz = Skew factor multiplier for skewing along the Y axis as you get farther from the Z axis. Default: 0
// szx = Skew factor multiplier for skewing along the Z axis as you get farther from the X axis. Default: 0
// szy = Skew factor multiplier for skewing along the Z axis as you get farther from the Y axis. Default: 0
function affine3d_skew(sxy=0, sxz=0, syx=0, xyz=0, szx=0, szy=0) = [
[ 1, sxy, sxz, 0],
[syx, 1, syz, 0],
[szx, szy, 1, 0],
[ 0, 0, 0, 1]
];
// Function: affine3d_skew_xy()
// Usage:
// affine3d_skew_xy(xa, ya)
// Description:
// Returns the 4x4 affine3d matrix to perform a skew transformation along the XY plane..
// Returns the 4x4 affine3d matrix to perform a skew transformation along the XY plane.
// Arguments:
// xa = Skew angle, in degrees, in the direction of the X axis.
// ya = Skew angle, in degrees, in the direction of the Y axis.