1) better load-balancing for deferred zones
2) sort zones by priority before filling
3) retire BOARD::GetZoneList() which had a horrible performance profile
4) implement a zone bounding box cache
5) better checks for IsCancelled() so long fills can be exited
Fixes https://gitlab.com/kicad/code/kicad/issues/5738
1) For a while now we've been using a calculated seg count from a given
maxError, and a correction factor to push the radius out so that all
the error is outside the arc/circle. However, the second calculation
(which pre-dates the first) is pretty much just the inverse of the first
(and yields nothing more than maxError back). This is particularly
sub-optimal given the cost of trig functions.
2) There are a lot of old optimizations to reduce segcounts in certain
situations, someting that our error-based calculation compensates for
anyway. (Smaller radii need fewer segments to meet the maxError
condition.) But perhaps more importantly we now surface maxError in the
UI and we don't really want to call it "Max deviation except when it's
not".
3) We were also clamping the segCount twice: once in the calculation
routine and once in most of it's callers. Furthermore, the caller
clamping was inconsistent (both in being done and in the clamping
value). We now clamp only in the calculation routine.
4) There's no reason to use the correction factors in the 3Dviewer;
it's just a visualization and whether the polygonization error is
inside or outside the shape isn't really material.
5) The arc-correction-disabling stuff (used for solder mask layer) was
somewhat fragile in that it depended on the caller to turn it back on
afterwards. It's now only exposed as a RAII object which automatically
cleans up when it goes out of scope.
6) There were also bugs in a couple of the polygonization routines where
we'd accumulate round-off error in adding up the segments and end up with
an overly long last segment (which of course would voilate the error
max). This was the cause of the linked bug and also some issues with vias
that we had fudged in the past with extra clearance.
Fixes https://gitlab.com/kicad/code/kicad/issues/5567
... instead of modifying the argument.
This will make the method usable in python API and will not incur
permormance penalty because named return value optimization (NRVO)
is a thing since C++11.
But even if copy is not elided vector is moved instead of copied.
https://en.cppreference.com/w/cpp/language/copy_elision
This introduces layer handling to a lot of the geometry routines.
Many of them don't do much with it now, but it does help multi-layer
zones and will help when padstacks are implemented.
the old calculations was creating a slightly too small shape for rounded corners.
Now the polygon is outside the perfect shape (as required to create a shape with clearance)
Fixes#4805https://gitlab.com/kicad/code/kicad/issues/4805
There were a lot of plotters, exporters, etc. that were rolling their
own implementations.
This also introduces a lazily-built set of SHAPE objects for doing
collision detection and some forms of rendering (and later DRC).
It's currently only supported in the Footprint Editor. It could be
easily added to the board editor (all the code is there), but the board
editor is a little short on room in the drawing tools toolbar.
* 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.
The oval clearance adds an edge on the 0-length side of a circular oval.
This is not needed and can affect the fill algorithm. Instead, we treat
round ovals as circles for pad polygons
Fixes: lp:1849846
* https://bugs.launchpad.net/kicad/+bug/1849846
(cherry picked from commit 57f0f88552)
This assumes maximum registration errors are a vector, rather than
an amount in both x and y axes. Lots more disucssion in the bug
report and on the forum (link in the bug report).
Also makes large changes to the painting of pads, but they now use
the same code as plotting, so if there are any changes then they
were errors before since plotting represents "truth".
Fixes: lp:1563744
* https://bugs.launchpad.net/kicad/+bug/1563744
Especially, small round rect pads have a ugly shape because the number of segments is
small and the 90 deg arcs are not very well approximated.
The minimal seg count for 90 deg arcs is now 4 (16 segm/circle) for pads.
Fixes: lp:1833005
https://bugs.launchpad.net/kicad/+bug/1833005
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 corrects an issue with fill segments-per-circle and moves the error
to segmetns calculation down in a number of functions to expose the
single value for approximation
jean-pierre charras
Seth Hillbrand
Jeff Young
Mario Luzeiro
qu1ck
Jon Evans
Ian McInerney
Seth Hillbrand