The SEXPR class is a useful general-purpose S-Expression library
class and can (maybe) be used else where. It also should get
test coverage, as even if noone else uses it, it's critical for the
kicad2step exporter.
Also add some test coverage for some kicad2step routines. For now,
they're not useful outside kicad2step, but they are at least a useful
reference for S-Expression parsing.
More recent Kicad_pcb files have quoted layer names (i.e.
strings, not symbols). The importer in K2S doesn't handle that,
so it chokes on elements like (layer "Edge.Cuts").
Fixes: lp:1824750
* https://bugs.launchpad.net/kicad/+bug/1824750
The addition of very small segments in OCE triggers sliver
removal/cleanup in the BREP generation that can get stuck in a very long
loop during STEP export of boards. These were introduced to ensure
closure of boards with small gaps that were too big for OCE to consider
joined.
Removing the small segments allows STEP export to proceed in a
reasonable time. This also decreases the default minimum gap size that
kicad2step uses to determine curve matching. This prevents mis-matching
small curves
Fixes: lp:1784626
* https://bugs.launchpad.net/kicad/+bug/1784626
STEP exporter keeps outline contiguous by storing the last point
coordinates and using them as the starting point for the next segment. It
might create a problem for arcs, as one of the arc end points may become
translated (changed to the last outline point), while the remaining
points (center and the other endpoint) are kept original. For large
deltas it renders an arc invalid, as it cannot pass through a modified
endpoint anymore.
To fix this, short segments are added to link the last outline point
with an arc endpoint, but only if the distance between the two is below
a certain threshold. This way the outline is kept contiguous and the arc
end point is unmodified, warranting its correctness.
Fixes: lp:1774351
* https://bugs.launchpad.net/kicad/+bug/1774351
- Display offset units in 3D preview window (inches or mm)
- Fix offset in 3D renderer
- Fix offset in Raytracing renderer
- Fix offset in STEP export
- Fix offset in VRML export
- Display offset units in 3D preview window (inches or mm)
- Fix offset in 3D renderer
- Fix offset in Raytracing renderer
- Fix offset in STEP export
- Fix offset in VRML export
- Use simple filename matching
- If a STEP file is found, use that instead
- Similar behaviour to the infamous StepUp tool
Fixes lp:1710796
https://bugs.launchpad.net/kicad/+bug/1710796
Set BRL precision to 10 nanometers to prevent floating point round errors
from creating arcs that leave gaps in the board outlines. Note: it may
be prudent to make this setting 100 nanometers if there are gerber export
issues.
Fixes lp:1652406
https://bugs.launchpad.net/kicad/+bug/1652406
John Beard
Seth Hillbrand
Maciej Suminski
Jeff Young
jean-pierre charras
Oliver
Wayne Stambaugh
Cirilo Bernardo
Morgan Quigley