Your message dated Mon, 11 Feb 2019 21:40:16 +0100
with message-id <[email protected]>
and subject line Documented limitation
has caused the Debian Bug report #802898,
regarding openscad: negative twist in linear_extrude leads to "Object isn't a
valid 2-manifold" during STL export
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
802898: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=802898
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: openscad
Version: 2014.03+dfsg-1
Severity: normal
Tags: upstream
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi,
the attached file cannot be exported to STL after rendering; changing the
sign on the "twist" parameter of the first "linear_extrude" makes the
problem go away (but obviously the threading is turning in the wrong
direction now).
Simon
- -- Package-specific info:
Output of /usr/share/bug/openscad:
$ glxinfo |grep 'OpenGL .* string:'
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 560 Ti/PCIe/SSE2
OpenGL core profile version string: 4.4.0 NVIDIA 340.65
OpenGL core profile shading language version string: 4.40 NVIDIA via Cg compiler
OpenGL version string: 4.4.0 NVIDIA 340.65
OpenGL shading language version string: 4.40 NVIDIA via Cg compiler
OpenGL ES profile version string: OpenGL ES 3.1 NVIDIA 340.65 340.65
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
- -- System Information:
Debian Release: 8.2
APT prefers stable
APT policy: (990, 'stable'), (500, 'oldoldstable'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages openscad depends on:
ii libboost-filesystem1.55.0 1.55.0+dfsg-3
ii libboost-program-options1.55.0 1.55.0+dfsg-3
ii libboost-regex1.55.0 1.55.0+dfsg-3
ii libboost-system1.55.0 1.55.0+dfsg-3
ii libboost-thread1.55.0 1.55.0+dfsg-3
ii libc6 2.19-18+deb8u1
ii libcgal10 4.5-2
ii libgcc1 1:4.9.2-10
ii libgl1-mesa-glx [libgl1] 10.3.2-1+deb8u1
ii libglew1.10 1.10.0-3
ii libglib2.0-0 2.42.1-1
ii libglu1-mesa [libglu1] 9.0.0-2
ii libgmp10 2:6.0.0+dfsg-6
ii libmpfr4 3.1.2-2
ii libopencsg1 1.3.2-2+b1
ii libqt4-opengl 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libqtcore4 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libqtgui4 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u1
ii libstdc++6 4.9.2-10
ii libx11-6 2:1.6.2-3
Versions of packages openscad recommends:
ii openscad-mcad 2014.03-1
Versions of packages openscad suggests:
pn geomview <none>
pn librecad <none>
pn meshlab <none>
pn openscad-testing <none>
- -- no debconf information
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intersection()
{
linear_extrude(height=80,center=true,twist=-1800,slices=1000)
{
union()
{
circle(r=5);
difference()
{
circle(r=8);
square(10);
translate([-10,-10]) square(10);
}
}
}
linear_extrude(height=80,center=true,slices=1000)
{
union()
{
circle(r=5);
for(ang=[0:36:360])
{
rotate(a=ang)
{
polygon(points=[[0,0],[7,0],[8*cos(8),8*sin(8)],[7*cos(16),7*sin(16)]]);
}
}
}
}
}
translate([0,0,-45])
{
cylinder(h=10,r=7.5,center=true);
linear_extrude(height=10,center=true,slices=1000)
{
for(ang=[0:24:360])
{
rotate(a=ang)
{
polygon(points=[[6,0],[9,0],[10*cos(6),10*sin(6)],[9*cos(12),9*sin(12)],[6*cos(12),6*sin(12)]]);
}
}
}
}
--- End Message ---
--- Begin Message ---
This is a documented limitation in OpenSCAD, as per previous comment. So
closing.
--- End Message ---
