to calculate thermal clearance (antipad size) for pads having the same netcode
as the zone, the net clearance has no meaning
(net clearance between object of the same net is 0)
and the zone_clearance can be set to 0 (i.e. use the netclass clearance).
Therefore use the antipad clearance (thermal clearance) or the zone_clearance if bigger.
- Fix non optimal shape of solid polygons after inflate transform.
- Add a small extra clearance ((2 microns) when creating clearance areas
(especially, convert arc to polygons create small differences)
- Add a small threshold (1 micron) in drc test distances to avoid false positives
- fix a minor issue in TransformOvalToPolygon that created sometimes a not perfect shape
Fixes#3812https://gitlab.com/kicad/code/kicad/issues/3812
* Split up the thirdparty code into the thirdparty folder (#3637)
* Create a new kimath static library containing all the math functions
This is part of cleaning the build system for #1906.
This is the first step to allowing non-segments in the line chain.
External routines cannot be allowed to change the line chain without
going through the internal routines. To accomplish this, we remove the
Vertex() and Point() access routines and only leave the const versions.
Transformations are given for both points as well as the chain itself.
pad size is sometimes smaller than the zone minimal width.
So, to avoid strange and incorrect results, do not create the stubs in
thermal relief when the pad size is smaller than the zone minimal width.
This margin is mandatory to avoid incorrect polygons in Gerber files:
due to the fact Gerber units can be 10 nm (and Gerbview internal unit is also 10nm), valid polygons
can be converted to non valid (self intersecting for instance) by coordinates truncation.
This is a known problem in Gerber files (not specific to Gerber format)
Fixes: lp:1847737
https://bugs.launchpad.net/kicad/+bug/1847737
Setting stub width to a ridiculous large value (for instance 100 times the pad size) creates strange and broken shapes,
and obviously stubs cannot be built.
Ensure also the thermal shape is inside the zone boundary (because the algo adds areas this was previously possible)
Fixes: lp:1837559
https://bugs.launchpad.net/kicad/+bug/1837559
This unifies the zone refill across architecture into the tool-based
architecture. Also provides ZONE_FILLER-based progress managment for
tools.
(cherry picked from commit be9cd98cb1)
It's too complicated trying to keep everything smaller or larger by
half the pen width, and some things like spoke-end-detection need the
actual outline anyway.
The thermal spokes are anchored at the pad anchor. They may or may
not make sense, depending on the pad shape. It's up to the author
to move the anchor around as necessary or to not use thermals.
This places the arc approximation setting in the kicad_pcb file and uses
it for all parts of the board rendering where arcs are converted to
segments. This allows the user to customize their speed vs. accuracy
tradeoff. The default setting of maximum error of 0.005mm is acceptable
for small boards on moderate systems.
This removes the remaining hard-coded segments counts and replaces them
with the relative error calculation where the segments per arc is
determined by the maximum error we allow (smaller arcs = fewer segments)
1 - For debug purposes, the code to fill non copper zones was disabled and the copper zone code was uses instead.
It creates issues with pad clearance areas, because a non copper zone has no clearance areas.
2 - The non copper zone dialog had no option to set the outline smoothing option.
Unfortunately, this parameter was inherited from the last edited copper zone.
And therefore the non copper zone can have a non wanted outline smoothing option.
This option is now added to the dialog.
Fixes: lp:1826952
https://bugs.launchpad.net/kicad/+bug/1826952
Jeff Young
Seth Hillbrand
jean-pierre charras
Ian McInerney
Mark Roszko
Ross Schlaikjer
Seth Hillbrand