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The issue:
https://forum.freecadweb.org/viewtopic.php?f=10&t=56550#p486554
The fix:
Setting the render type to Image causes the issue, but neither do I know why it is
necessary to set it to Image, nor do I understand why this is causing the issue. I
only know it solves the issue.
Qt has deprecated the following constants, this commit replaces them
with their new equivalent/replacement:
Qt::TextColorRole -> Qt::ForegroundRole
Qt::BackgroundColorRole -> Qt::BackgroundRole
QPainter::HighQualityAntialiasing -> QPainter::Antialiasing
QPalette::Foreground -> QPalette::WindowText
As pointed out in Issue #0004353 the OpenSCAD Workbench does not
correctly implement the angle parameter to rotate_extrude (it's a
relatively recent addition to OpenSCAD), nor does it attempt to do
anything with a specified $fn. This commit adds both features. To add
$fn handling, the code from the cylinder extrusion was mimicked,
allowing FreeCAD to create perfect, smooth representations when $fn
exceeds a user specified value in Preferences, but attempting to create
OpenSCAD's more discrete representation when using a lower $fn. Note
that this determination is made at creation time: if the user later
increases the segments parameter in the new object, it will remain
prismatic regardless of how high the value is made.
- all other option text use consequently lowercase letters
- also set dialog to a more sensible sensible size
- the other changes were automagically done by QT Creator