openscad/BOSL2
1
0
Fork 0
mirror of https://github.com/revarbat/BOSL2.git synced 2025-08-31 04:00:07 +02:00
Code Issues Projects Releases Wiki Activity

Various bugfixes found by docs regen.

Browse Source
This commit is contained in:
Revar Desmera
2020-04-26 04:29:21 -07:00
parent 2834e8bc56
commit e32735296c
6 changed files with 16 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
geometry.scad
View File

@@ -849,6 +849,7 @@ function coplanar(plane, point, eps=EPSILON) =
// points = The list of points to test.
// eps = How much variance is allowed in testing that each point is on the same plane. Default: `EPSILON` (1e-9)
function points_are_coplanar(points, eps=EPSILON) =
points_are_collinear(points, eps=eps)? true :
let(
plane = plane_from_points(points, fast=true, eps=eps)
) all([for (pt = points) coplanar(plane, pt, eps=eps)]);
@@ -1112,7 +1113,9 @@ function polygon_area(poly) =
len(poly)<3? 0 :
len(poly[0])==2? 0.5*sum([for(i=[0:1:len(poly)-1]) det2(select(poly,i,i+1))]) :
let(
plane = plane_from_points(poly),
plane = plane_from_points(poly)
) plane==undef? undef :
let(
n = unit(plane_normal(plane)),
total = sum([for (i=[0:1:len(poly)-1]) cross(poly[i], select(poly,i+1))]),
res = abs(total * n) / 2