44 lines
948 B
OpenSCAD
44 lines
948 B
OpenSCAD
/* Taken from https://gist.github.com/boredzo/fde487c724a40a26fa9c?permalink_comment_id=4258747 */
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/* skew takes an array of six angles:
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* x along y
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* x along z
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* y along x
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* y along z
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* z along x
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* z along y
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*/
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module skew(dims) {
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matrix = [
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[ 1, dims[0]/45, dims[1]/45, 0 ],
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[ dims[2]/45, 1, dims[4]/45, 0 ],
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[ dims[5]/45, dims[3]/45, 1, 0 ],
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[ 0, 0, 0, 1 ]
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];
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multmatrix(matrix)
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children();
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}
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/* example:
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* skew([45, 0, 0, 0, 0, 0])
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* cube([10,10,10]);
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*/
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// Skews the child geometry.
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// xy: Angle towards X along Y axis.
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// xz: Angle towards X along Z axis.
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// yx: Angle towards Y along X axis.
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// yz: Angle towards Y along Z axis.
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// zx: Angle towards Z along X axis.
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// zy: Angle towards Z along Y axis.
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module skew2(xy = 0, xz = 0, yx = 0, yz = 0, zx = 0, zy = 0) {
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matrix = [
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[ 1, tan(xy), tan(xz), 0 ],
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[ tan(yx), 1, tan(yz), 0 ],
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[ tan(zx), tan(zy), 1, 0 ],
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[ 0, 0, 0, 1 ]
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];
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multmatrix(matrix)
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children();
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}
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