Since we use center points to move back and forth for angle and
adjustments, we want to ensure that our center point is stable.
Rounding using integers introduces a 0.5 int uncertainty in each
measurement. These are combined together multiple times to calculate
the center point, which combines the uncertainty. Propagating the
uncertainty to the final calculation allows us to assign a range of true
values and pick the value that is most likely the correct value.
Fixes https://gitlab.com/kicad/code/kicad/issues/10739
1) Generate SHAPE_POLY_SET triangulation by outline so they can be
shared between connectivity system and other clients.
2) Don't add items to connectivity when reading board; we're going
to do a total rebuild anyway.
3) Use multithreading when caching triangulation.
Handles checking output of the arc to ensure we don't end up generating
an invalid arc. Also keeps the limit of the arc angle to be (360,360)
excluding 0.
Fixes https://gitlab.com/kicad/code/kicad/issues/10070
(cherry picked from commit 8fc831cbc2)
Test should not be testing against the polygonization error; if done
correctly that should all be on the correct side of the shape. Use an
epsilon instead (I chose polygonization error / 10, but the value isn't
terribly important).
Fixes https://gitlab.com/kicad/code/kicad/issues/10724
The existing algorithm nicely handled the error being on the inside (where
the segment ends are error-free), but not when it was on the outside (where
the segment midpoints are error-free).
In any case, we want error-free points at each end of the arc so we don't
get ears or divots.
(Conversion was upside-down.)
Also fixes bugs with rotation angle increment not getting units
set and with a 0 footprint editor value overwriting a non-zero
pcb editor value (or vice versa).
Includes bug fix for catastrophic error in Add() for converting to
radians.
Includes bug fixes for the fact that the pcbnew test can't seem to
find the ANGLE_* objects (getting all 0's instead).