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bug fix, added tests

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This commit is contained in:
Adrian Mariano 2021-09-15 16:36:03 -04:00
parent 33ca0d4a69
commit eec1d6b08c
2 changed files with 30 additions and 1 deletions
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29
tests/test_geometry.scad
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@ -697,6 +697,35 @@ module test_polygon_line_intersection() {
[[[-3.31370849898, 3], [-2.24264068712, 3]],
[[-0.828427124746, 3], [0.828427124746, 3]],
[[2.24264068712, 3], [3.31370849898, 3]]]);
tran = skew(sxy=1.2)*scale([.9,1,1.2])*yrot(14)*zrot(37)*xrot(9);
// assemble multiple edges into one edge
assert_approx(polygon_line_intersection(star(r=15,n=8,step=2), [[20,-5],[-5,20]]), [[[15,0],[0,15]]]);
assert_approx(polygon_line_intersection(apply(tran,path3d(star(r=15,n=8,step=2))), apply(tran,[[20,-5,0],[-5,20,0]])), apply(tran,[[[15,0,0],[0,15,0]]]));
// line going the other direction
assert_approx(polygon_line_intersection(star(r=15,n=8,step=2), [[-5,20],[20,-5]]), [[[0,15],[15,0]]]);
assert_approx(polygon_line_intersection(apply(tran,path3d(star(r=15,n=8,step=2))), apply(tran,[[-5,20,0],[20,-5,0]])),apply(tran, [[[0,15,0],[15,0,0]]]));
// single point
assert_approx(polygon_line_intersection(hexagon(r=15), [[15,-10],[15,13]], RAY), [[[15,0]]]);
assert_approx(polygon_line_intersection(apply(tran,path3d(hexagon(r=15))), apply(tran,[[15,-10,0],[15,13,0]]), RAY),
[[apply(tran,[15,0,0])]]);
// two points
assert_approx(polygon_line_intersection(star(r=15,n=8,step=3), rot(22.5,p=[[15,-10],[15,20]],cp=[15,0])),
[[[15,0]], [[10.6066017178, 10.6066017178]]]);
assert_approx(polygon_line_intersection(apply(tran,path3d(star(r=15,n=8,step=3))), apply(tran,rot(22.5,p=[[15,-10,0],[15,20,0]],cp=[15,0,0]))),
[[apply(tran,[15,0,0])], [apply(tran,[10.6066017178, 10.6066017178,0])]]);
// two segments and one point
star7 = star(r=25,ir=9,n=7);
assert_approx(polygon_line_intersection(star7, [left(10,p=star7[8]), right(50,p=star7[8])]),
[[[-22.5242216976, 10.8470934779]],
[[-5.60077322195, 10.8470934779], [0.997372374838, 10.8470934779]],
[[4.61675816681, 10.8470934779], [11.4280421589, 10.8470934779]]]);
assert_approx(polygon_line_intersection(apply(tran,path3d(star7)),
apply(tran, path3d([left(10,p=star7[8]), right(50,p=star7[8])]))),
[[apply(tran,[-22.5242216976, 10.8470934779,0])],
apply(tran,[[-5.60077322195, 10.8470934779,0], [0.997372374838, 10.8470934779,0]]),
apply(tran,[[4.61675816681, 10.8470934779,0], [11.4280421589, 10.8470934779,0]])]);
}
*test_polygon_line_intersection();

2
vnf.scad
View File

@ -1178,7 +1178,7 @@ function vnf_validate(vnf, show_warns=true, check_isects=false) =
)
if (!is_undef(isects))
for (isect = isects)
if (len(isect) > 1)
if (len(isect) > 1) let(
isects2 = polygon_line_intersection(poly2, isect, bounded=true)
)
if (!is_undef(isects2))