By 'root lines' we mean the oldest traceable ancestor of each track moved by the router
(i.e. after shoving for a while, the root of each shoved line is it's latest non-shoved version).
With this we can teach the OPTIMIZER more tricks, such as the LIMIT_CORNER_COUNT constraint. It ensures
the results of the optimization will not be less cornery than the original line, reducing the feeling
of the optimizer being too intrusive.
Fixes picking the last segment instead of the last vertex to drag (when one is requested).
I didn't notice any behaviour change of the dragger wrs to arcs.
From discussion with Tom, Jeff, and Wayne, it appears as though
we all agreed that Highlight Collisions should behave like it
did in 5.1, which is to say, always just highlight collisions,
never prevent them. The Allow DRC Violations checkbox just
controls whether or not you can fix/commit the head line if it
has violations; you are not prevented from moving the head
line to violating positions in any case.
Right now, there does not seem to be much demand for a separate
"Stop at First Obstacle" mode since Walkaround basically does that
but better, but we agreed that if there is demand for it in the
future, it should be implemented as a new router mode rather than
a behavior of Highlight Collisions mode controlled by the Allow
DRC Violations checkbox.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/7828
Using a synthetic via here doesn't quite let us use VIA::PushoutForce
because it will use the wrong clearance, and also doesn't quite have
the logic we want. I am not familiar enough with PushoutForce to know
if its logic is a bug in other cases, so instead I just brought in the
parts of its algorithm that are needed here.
Additionally, we prevent pushing more than once from a given obstacle,
which causes walkaround to be more successful when routing diff pairs
against a large collider such as a keepout area.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8232
I'm not sure where the magic number of "4x worst" came from, but it's
been around forever. This is extremely inefficient as it negates much
of the power of r-tree filtering in dense designs. If we really trusted
it, we could set this just to worstClearance. Keeping it above the worst
clearance by a little bit seems to provide enough of a speed improvement
to resolve the test cases I have, so I'll go with that for now.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/7777
This allows fixing/committing what is on screen even if the current
cursor position doesn't have a valid solution (the old behavior
would result in the current trace disappearing)
The previous method fails if the primitive is an expanding or
contracting pair (diagonals going inward or outward) resulting in
incorrect orientation, which then leads to incorrect candidate
gateways being generated and no solution found.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8185
TODO:
* The resulting line chain is broken with the arcs, and
this appears to be some subsequent issue I was not able to pin down.
* The requirement of a correction factor is not clear to me
VIEW::GetBoundary() returns the entire view area, not the visible area.
Surprisingly, we had no API for this, so I added one.
Also, changed the dragger behavior to toggle between optimizing just the
modified area and optimizing the visible area, i.e. we will now never
optimize off-screen portions of the dragged track.
CHANGED: The interactive router settings now include a switch to
enable or disable optimization of the entire dragged track,
which is now disabled by default. When enabled, the router
will reroute the entire track (from the dragged segment to
the closest pad/via in each direction) to be more optimal.
When disabled, only the area around the dragged segment
will be modified.
CHANGED: The "optimizer effort" slider is removed from the interactive
router settings dialog, as this setting did not have any
meaningful impact in most cases and was a source of confusion.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/5918
Jeff Young
david-beinder
Jon Evans
Marek Roszko
Tomasz Wlostowski
jean-pierre charras
Jonathan Haas
Ian McInerney
Thomas Pointhuber