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add region centroid capability and consolidate into one centroid

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function for polygons, regions and VNFs.
Fix bug with anchors for linear_sweep (due to centerpoint issues)
Fix intersection anchors for vnfs when anchor vector intersects
in a path instead of a single point.
This commit is contained in:
Adrian Mariano
2021-10-20 22:44:55 -04:00
parent a7ca1b1b64
commit 76272d9d9a
10 changed files with 158 additions and 101 deletions
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12
tests/test_vnf.scad
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@@ -43,18 +43,6 @@ module test_vnf_from_polygons() {
test_vnf_from_polygons();
module test_vnf_centroid() {
assert_approx(vnf_centroid(cube(100, center=false)), [50,50,50]);
assert_approx(vnf_centroid(cube(100, center=true)), [0,0,0]);
assert_approx(vnf_centroid(cube(100, anchor=ALLPOS)), [-50,-50,-50]);
assert_approx(vnf_centroid(cube(100, anchor=BOT)), [0,0,50]);
assert_approx(vnf_centroid(cube(100, anchor=TOP)), [0,0,-50]);
assert_approx(vnf_centroid(sphere(d=100, anchor=CENTER, $fn=36)), [0,0,0]);
assert_approx(vnf_centroid(sphere(d=100, anchor=BOT, $fn=36)), [0,0,50]);
ellipse = xscale(2, p=circle($fn=24, r=3));
assert_approx(vnf_centroid(path_sweep(pentagon(r=1), path3d(ellipse), closed=true)),[0,0,0]);}
test_vnf_centroid();
module test_vnf_volume() {
assert_approx(vnf_volume(cube(100, center=false)), 1000000);