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Fixed docs for path2d.

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Modified pointlist_bounds to give output that matches input
dimension and to work on any input dimension.  Also made it ~20 times faster.
This commit is contained in:
Adrian Mariano
2020-07-24 16:36:57 -04:00
parent 68459776e2
commit 1dda5b088c
3 changed files with 27 additions and 8 deletions
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17
geometry.scad
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@@ -1380,15 +1380,18 @@ function find_noncollinear_points(points) =
// Usage:
// pointlist_bounds(pts);
// Description:
// Finds the bounds containing all the 2D or 3D points in `pts`.
// Returns `[[MINX, MINY, MINZ], [MAXX, MAXY, MAXZ]]`
// Finds the bounds containing all the points in `pts` which can be a list of points in any dimension.
// Returns a list of two items: a list of the minimums and a list of the maximums. For example, with
// 3d points `[[MINX, MINY, MINZ], [MAXX, MAXY, MAXZ]]`
// Arguments:
// pts = List of points.
function pointlist_bounds(pts) = [
[for (a=[0:2]) min([ for (x=pts) point3d(x)[a] ]) ],
[for (a=[0:2]) max([ for (x=pts) point3d(x)[a] ]) ]
];
function pointlist_bounds(pts) =
assert(is_matrix(pts))
let(ptsT = transpose(pts))
[
[for(row=ptsT) min(row)],
[for(row=ptsT) max(row)]
];
// Function: closest_point()
// Usage: