Union with polyhedron doesn't render with F6
Why won't this polyhedron and cylinder union render with F6?
p = [[0, 0, 0], [10, 0, 0], [10, 0, 10], [0, 0, 10], [0, 10, 0], [0, 10,
10], [10, 10, 10], [10, 10, 0], [0, 0, 10], [0, 10, 10], [10, 10, 10], [10,
0, 10]];
f = [[0, 3, 2, 1, 0], [0, 4, 5, 3], [5, 4, 7, 6, 5], [1, 2, 6, 7, 1], [0, 1,
7, 4, 0], [8, 9, 10, 11, 8]];
union() {
polyhedron(points=p, faces=f);
cylinder([1,1,1]);
}
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It does for me on almost latest git master.
Miro Hrončok
Telefon: +420777974800
2014-12-28 9:11 GMT+01:00 NathanA napter@gmail.com:
Why won't this polyhedron and cylinder union render with F6?
p = [[0, 0, 0], [10, 0, 0], [10, 0, 10], [0, 0, 10], [0, 10, 0], [0, 10,
10], [10, 10, 10], [10, 10, 0], [0, 0, 10], [0, 10, 10], [10, 10, 10], [10,
0, 10]];
f = [[0, 3, 2, 1, 0], [0, 4, 5, 3], [5, 4, 7, 6, 5], [1, 2, 6, 7, 1], [0, 1,
7, 4, 0], [8, 9, 10, 11, 8]];
union() {
polyhedron(points=p, faces=f);
cylinder([1,1,1]);
}
--
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F5 works on 2014.03, F6 does not,
Both F5 & F6 work on latest snapshop.
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I think the problem is you don't need to repeat the first vertex in the
faces list. If I remove all the last numbers it works fine in F5 and F6 in
the old versions I use.
On 28 December 2014 at 11:02, MichaelAtOz oz.at.michael@gmail.com wrote:
F5 works on 2014.03, F6 does not,
Both F5 & F6 work on latest snapshop.
Unless specifically shown otherwise above, my contribution is in the
Public Domain; To the extent possible under law, I have waived all
copyright and related or neighbouring rights to this work. This work is
published globally via the internet. :) Inclusion of works of previous
authors is not included in the above.
The TPP is no simple "trade agreement." Fight it!
http://www.ourfairdeal.org/
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It doesn't on OpenSCAD version 2014.11.28 / OpenSUSE 31.1
Peter Ragosch
Am Sun, 28 Dec 2014 01:11:27 -0700 (MST)
schrieb NathanA napter@gmail.com:
Why won't this polyhedron and cylinder union render with F6?
p = [[0, 0, 0], [10, 0, 0], [10, 0, 10], [0, 0, 10], [0, 10, 0], [0,
10, 10], [10, 10, 10], [10, 10, 0], [0, 0, 10], [0, 10, 10], [10, 10,
10], [10, 0, 10]];
f = [[0, 3, 2, 1, 0], [0, 4, 5, 3], [5, 4, 7, 6, 5], [1, 2, 6, 7, 1],
[0, 1, 7, 4, 0], [8, 9, 10, 11, 8]];
union() {
polyhedron(points=p, faces=f);
cylinder([1,1,1]);
}
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It gives me an CGAL error in 2014.12.04, so there is probably something wrong
with your polyhedron. nophead pointed out the problem.
Fix:
f = [[0, 3, 2, 1], [0, 4, 5, 3], [5, 4, 7, 6], [1, 2, 6, 7], [0, 1, 7, 4],
[8, 9, 10, 11]];
Rendering Polygon Mesh using CGAL...
CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion violation!
Expr: pe != 0
File:
/data/OpenSCAD/libraries-mingw64-master/mxe-w64/usr/x86_64-w64-mingw32.static/include/CGAL/Nef_3/polyhedron_3_to_nef_3.h
Line: 214
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Same with OpenSCAD version 2014.11.28 / OpenSUSE 13.1
and
have you noticed that the second face in the face list consists of 4
values but all others of 5 values ? The mismatch of numbers may cause
the problem - I didn't check.
Peter Ragosch
Am Sun, 28 Dec 2014 11:14:40 +0000
schrieb nop head nop.head@gmail.com:
I think the problem is you don't need to repeat the first vertex in
the faces list. If I remove all the last numbers it works fine in F5
and F6 in the old versions I use.
On 28 December 2014 at 11:02, MichaelAtOz oz.at.michael@gmail.com
wrote:
F5 works on 2014.03, F6 does not,
Both F5 & F6 work on latest snapshop.
Unless specifically shown otherwise above, my contribution is in the
Public Domain; To the extent possible under law, I have waived all
copyright and related or neighbouring rights to this work. This
work is published globally via the internet. :) Inclusion of works
of previous authors is not included in the above.
The TPP is no simple "trade agreement." Fight it!
http://www.ourfairdeal.org/
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@nophead I removed the extra vertices and made all the faces five points. It
is now a basic cube, 8 vertices and 6 faces. It still doesn't F6 on
2014.11.09. How did you get it to work?
p = [[0, 0, 0], [10, 0, 0], [10, 0, 10], [0, 0, 10], [0, 10, 0],
[0, 10, 10], [10, 10, 10], [10, 10, 0]];
f = [[0, 3, 2, 1, 0], [0, 4, 5, 3, 0], [5, 4, 7, 6, 5], [1, 2, 6, 7, 1], [0,
1, 7, 4, 0], [3, 5, 6, 2, 3]];
union() {
polyhedron(points=p, faces=f);
cylinder([1,1,1]);
}
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I removed the repeated vertex indices in faces. To define a square you need
four indices. You don't repeat the first one to close it.
On 28 December 2014 at 17:38, NathanA napter@gmail.com wrote:
@nophead I removed the extra vertices and made all the faces five points.
It
is now a basic cube, 8 vertices and 6 faces. It still doesn't F6 on
2014.11.09. How did you get it to work?
p = [[0, 0, 0], [10, 0, 0], [10, 0, 10], [0, 0, 10], [0, 10, 0],
[0, 10, 10], [10, 10, 10], [10, 10, 0]];
f = [[0, 3, 2, 1, 0], [0, 4, 5, 3, 0], [5, 4, 7, 6, 5], [1, 2, 6, 7, 1],
[0,
1, 7, 4, 0], [3, 5, 6, 2, 3]];
union() {
polyhedron(points=p, faces=f);
cylinder([1,1,1]);
}
--
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On Dec 28, 2014, at 12:42 PM, nop head nop.head@gmail.com wrote:
I removed the repeated vertex indices in faces. To define a square you need four indices. You don't repeat the first one to close it.
nophead is right.
We made face tessellation more robust ca. Dec 1st., so any snapshot after that should work.
-Marius