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transform logging

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Adrian Mariano 2024-12-03 20:34:58 -05:00
parent c541e1b894
commit 9d25c28534
1 changed files with 48 additions and 4 deletions
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transforms.scad
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@ -1355,9 +1355,9 @@ module frame_map(x,y,z,p,reverse=false)
// Function&Module: skew() // Function&Module: skew()
// //
// Synopsis: Skews children along various axes. // Synopsis: Skews (or shears) children along various axes.
// SynTags: Trans, Path, VNF, Mat // SynTags: Trans, Path, VNF, Mat
// Topics: Affine, Matrices, Transforms, Skewing // Topics: Affine, Matrices, Transforms, Skewing, Shearing
// See Also: move(), rot(), scale() // See Also: move(), rot(), scale()
// //
// Usage: As Module // Usage: As Module
@ -1368,7 +1368,7 @@ module frame_map(x,y,z,p,reverse=false)
// mat = skew([sxy=]|[axy=], [sxz=]|[axz=], [syx=]|[ayx=], [syz=]|[ayz=], [szx=]|[azx=], [szy=]|[azy=]); // mat = skew([sxy=]|[axy=], [sxz=]|[axz=], [syx=]|[ayx=], [syz=]|[ayz=], [szx=]|[azx=], [szy=]|[azy=]);
// //
// Description: // Description:
// Skews geometry by the given skew factors. // Skews geometry by the given skew factors. Skewing is also referred to as shearing.
// * Called as the built-in module, skews all children. // * Called as the built-in module, skews all children.
// * Called as a function with a point in the `p` argument, returns the skewed point. // * Called as a function with a point in the `p` argument, returns the skewed point.
// * Called as a function with a list of points in the `p` argument, returns the list of skewed points. // * Called as a function with a list of points in the `p` argument, returns the list of skewed points.
@ -1572,4 +1572,48 @@ function _apply(transform,points) =
"), data of dimension ",datadim)); "), data of dimension ",datadim));
// Section: Saving and restoring
$transform = IDENT;
module translate(v)
{
$transform = $transform * (is_vector(v) && (len(v)==2 || len(v)==3) ? affine3d_translate(point3d(v)) : IDENT);
_translate(v) children();
}
module rotate(a,v)
{
rot3 = is_finite(a) && is_vector(v) && (len(v)==2 || len(v)==3) ? affine3d_rot_by_axis(v,a)
: is_finite(a) ? affine3d_zrot(a)
: same_shape(a,[0]) ? affine3d_xrot(a.x)
: same_shape(a,[0,0]) ? affine3d_yrot(a.y)*affine3d_xrot(a.x)
: same_shape(a,[0,0,0])? affine3d_zrot(a.z)*affine3d_yrot(a.y)*affine3d_xrot(a.x)
: IDENT;
$transform = $transform * rot3;
_rotate(a=a,v=v) children();
}
module scale(v)
{
s3 = is_finite(v) ? affine3d_scale([v,v,v])
: is_vector(v) ? affine3d_scale(v)
: IDENT;
$transform = $transform * s3;
_scale(v) children();
}
module multmatrix(m)
{
m3 = !is_matrix(m) ? IDENT
: len(m)>0 && len(m)<=4 && len(m[0])>0 && len(m[0])<=4 ? submatrix_set(IDENT, m)
: IDENT;
$transform = $transform * m3;
_multmatrix(m) children();
}
// vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap // vim: expandtab tabstop=4 shiftwidth=4 softtabstop=4 nowrap