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doc tweak for affine
change path_spread to use affine3d_frame_map and fix bug when using n= option
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@@ -266,10 +266,10 @@ function affine3d_rot_from_to(from, to) =
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// Function: affine3d_frame_map()
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// Function: affine3d_frame_map()
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// Usage:
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// Usage:
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// map = affine3d_frame_map(v1, v2, v3);
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// map = affine3d_frame_map(v1, v2, v3, <reverse>);
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// map = affine3d_frame_map(x=VECTOR1, y=VECTOR2, <reverse>);
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// map = affine3d_frame_map(x=VECTOR1, y=VECTOR2, <reverse>);
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// map = affine3d_frame_map(x=VECTOR1, z=VECTOR2, <reverse>);
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// map = affine3d_frame_map(x=VECTOR1, z=VECTOR2, <reverse>);
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// map = affine3d_frame_map(y=VECTOR1, y=VECTOR2, <reverse>);
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// map = affine3d_frame_map(y=VECTOR1, z=VECTOR2, <reverse>);
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// Description:
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// Description:
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// Returns a transformation that maps one coordinate frame to another. You must specify two or
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// Returns a transformation that maps one coordinate frame to another. You must specify two or
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// three of `x`, `y`, and `z`. The specified axes are mapped to the vectors you supplied. If you
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// three of `x`, `y`, and `z`. The specified axes are mapped to the vectors you supplied. If you
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@@ -1186,7 +1186,7 @@ module path_spread(path, n, spacing, sp=undef, rotate_children=true, closed=fals
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if(planar) {
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if(planar) {
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rot(from=[0,1],to=cutlist[i][3]) children();
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rot(from=[0,1],to=cutlist[i][3]) children();
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} else {
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} else {
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multmatrix(affine2d_to_3d(transpose([cutlist[i][2],cross(cutlist[i][3],cutlist[i][2]), cutlist[i][3]])))
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multmatrix(affine3d_frame_map(x=cutlist[i][2], z=cutlist[i][3]))
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children();
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children();
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}
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}
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} else {
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} else {
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