Infinite loop in 2D subsystem ? about openscad HOT 7 CLOSED

Thanks for the report.
This is a problem in the OpenCSG Preview (F5) - I'll look into it.
In the meantime you can use Compile and Render (F6) instead, it should work.

from openscad.

Can you do the F6 compile instead of F5 compile? On my machine F6 goes
OK, but F5 appears to be suffering from 'normalization explosion'.

-DB

On Sun, Dec 18, 2011 at 3:06 AM, Eero af Heurlin
[email protected]
wrote:

I ran into weird bug when designing a lasercut enclosure, all the sides of the box are made with the 2D subsystem and for visualization extruded to 3D, this works fine. But when I try to compile just one of the 2D designs alone (for exporting to DXF) it will cause a seemingly infinite loop (I ran out of swapspace at ~20G of memory used by OpenSCAD...), and it's not even the most complex part that triggers this.

This is on Mac, using 2011.12.13 version but I'm fairly sure I ran into same issue with the stable version as well (I switched to devel for a reason).

Code at https://gist.github.com/1492786

---

Reply to this email directly or view it on GitHub:
#44

from openscad.

Another way to work around this is to use the render() statement in strategic locations to evaluate that into a single polyhedron (thus simplifying resulting normalized CSG tree).

from openscad.

F6 compile works but since there is no way to reload without doing the "normal" compile this get's a bit complicated.

Anyway, worked around the problem by doing a 2D projection from 3D extrusion (as can be seen from the .scad file), fits my usual workflow (external editor, automatic reload & compile) better :)

from openscad.

The render() call also works fine, thanks for that tip.

from openscad.

Just one comment: The rendering is still pretty slow. That's an optimization for later.

from openscad.

render was still faster (and definitely cleaner) than making extrusion and projection.

from openscad.