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Merge remote-tracking branch 'upstream/master'

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Adrian Mariano
2025-04-30 20:09:37 -04:00
parent d2406c07da 276dec1b34
commit 29023d2170
1 changed files with 22 additions and 13 deletions
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35
vectors.scad
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@@ -708,6 +708,17 @@ function pointlist_bounds(pts) =
// x = `[min,max]` of rescaled x coordinates. Default: undef
// y = `[min,max]` of rescaled y coordinates. Default: undef
// z = `[min,max]` of rescaled z coordinates. Default: undef
// Example(2D): A 2D bezier path (red) rescaled (blue) to fit in a square box centered on the origin.
// bez = [
// [10,60], [-5,30],
// [20,60], [50,50], [100,30],
// [50,30], [70,20]
// ];
// path = bezpath_curve(bez);
// newpath = fit_to_box(path, x=[0,40], y=[0,40]);
// stroke(path, width=2, color="red");
// stroke(square(40), width=1, closed=true);
// stroke(newpath, width=2, color="blue");
// Example(3D): A prismoid (left) is rescaled to fit new x and z bounds. The z bounds minimum and maximum values are reversed, resulting in the new object on the right having inverted z coordinates.
// vnf = prismoid(size1=[50,30], size2=[20,20], h=20, shift=[15,5]);
// vnf_boxed = fit_to_box(vnf, x=[30,55], z=[5,-15]);
@@ -721,20 +732,18 @@ function fit_to_box(pts, x, y, z) =
assert(is_undef(z) || is_vector(z,2), "\nx must be a 2-vector [min,max].")
let(
isvnf = is_vnf(pts),
p = isvnf ? vnf_vertices(pts) : pts,
dim = len(p[0]),
dum = assert(dim<3 || (dim==3 && is_def(z)), "\n2D data detected with z range specified."),
whichdim = [is_def(x), is_def(y), is_def(z)], // extract only the columns needed
xcol = whichdim.x ? column(p,0) : [0],
ycol = whichdim.y ? column(p,1) : [0],
zcol = whichdim.z ? column(p,2) : [0],
xmin = min(xcol),
ymin = min(ycol),
zmin = min(zcol),
p = isvnf ? pts[0] : pts,
bounds = isvnf ? vnf_bounds(pts) : pointlist_bounds(pts),
dim = len(bounds[0]),
err = assert(is_undef(z) || (dim>2 && is_def(z)), "\n2D data detected with z range specified."),
whichdim = [is_def(x), is_def(y), is_def(z)],
xmin = bounds[0][0],
ymin = bounds[0][1],
zmin = dim>2 ? bounds[0][2] : 0,
// new scales
xscale = whichdim.x ? (x[1]-x[0]) / (max(xcol)-xmin) : 1,
yscale = whichdim.y ? (y[1]-y[0]) / (max(ycol)-ymin) : 1,
zscale = whichdim.z ? (z[1]-z[0]) / (max(zcol)-zmin) : 1,
xscale = whichdim.x ? (x[1]-x[0]) / (bounds[1][0]-xmin) : 1,
yscale = whichdim.y ? (y[1]-y[0]) / (bounds[1][1]-ymin) : 1,
zscale = whichdim.z ? (z[1]-z[0]) / (bounds[1][2]-zmin) : 1,
// new offsets
xo = whichdim.x ? x[0] : 0,
yo = whichdim.y ? y[0] : 0,