Multiple Thevenin supplies and prescribed-current loads on one net,
solved in absolute volts with the Tellegen power balance verified per
run; a source-sink pair table (effective copper resistance per
supply x load pair plus an exactly-summing proportional-sharing loss
attribution), in summary.txt and as its own figure. Bonded terminals
short a package's contacts into one lug so the per-pin split becomes
a solve outcome. Geometry dumps carry the terminal set (schema v8).
The dialog gained a Classic/PDN mode selector and a full PDN editor:
per-role supply/load tables built from the marker rectangles (or a
config's terminal set, which never pins mode or net), with Component
hints, per-terminal Layer scopes, Active checkboxes, comments, a
per-net row filter, resizable tables and a scrolling, screen-sized
dialog. Numbers accept SI suffixes (50m, 4.7k) everywhere.
fill_res_config.json fully specifies a run (classic or PDN) with
validation, comments, named side-by-side configs (the one called
default auto-loads), Load/Save buttons with an editable file name,
and saves that never drop anything drawn on the board.
347 tests, green on Python 3.13 and on the 3.9 macOS wheel stack.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
fill_resistance.__version__ is the runtime source (metadata.json and
pyproject.toml are excluded from deployment); a test pins all three
to the same number.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
QtCore's libraries (glib, icu) can load while QtWidgets/QtGui still
miss libGL - matplotlib's qt backend imports all three, so the old
probe could promise QtAgg and lose even the error figure at
switch_backend, one library layer deeper than the NixOS fix. The
regression test's mock now mirrors the real failure (bare package and
QtCore import fine, GUI modules raise): both the bare-import and the
QtCore-probe variants now fail it, verified by mutation. Also drop two
redundant f-prefixes on placeholder-less strings in report.py.
Second Mac run (KiCad demo board opened from the mounted installer
image) got past the dialog and died twice:
1. make_output_dir crashed with OSError 30: the demos volume is a
read-only filesystem. Now falls back to a temp directory named
after the board, with the path printed (the Messages panel showed
it is actually read there).
2. The error figure - and every other figure - could never render:
matplotlib refused with Cannot load backend TkAgg ... as qt is
currently running. macOS bundled Python ships tkinter, so the
old tk-first probe picked TkAgg while the PySide6 dialog and
progress window had already made this a Qt process. Windows never
saw it because KiCad Python there has no tkinter. Qt now comes
first - PySide6 is a hard dependency, so it is always there.
Both covered by tests that fail on the old code: the dev env has both
toolkits installed, so the backend-order assertion is exercised for
real, and the RO fallback is simulated by denying mkdir under the
board dir. 140 passed on the dev stack and on the Python 3.9 +
numpy 2.0 / scipy 1.13 / matplotlib 3.9 / PySide6 6.10 stack that a
Mac venv resolves.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Skin resistance is a small fraction of real AC impedance (proximity
and inductance dominate), so AC must not appear in the descriptions.
README headline, PCM/plugin metadata, pyproject, dialog note, CLI
help and the summary label now all say: skin-only lower bound on the
resistance rise, not an AC impedance simulation.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Refuse the uniform contact model when the fills form multiple
disconnected copper groups that each touch both terminals: the
prescribed injection split is ill-posed and the grounded system was
singular, silently returning garbage (e.g. negative gigaohms).
connected_restrict now reports the component count; a power-balance
backstop (SolverError) catches any other inconsistent solve.
- Connect via/pad barrels to the nearest fill copper within the pad
footprint (+1 cell) instead of only the exact center cell, so
thermal-relief spokes still stitch layers; barrels that reach fill on
fewer than two layers are warned about. ViaLink gains pad_nm
(extracted from the padstack, JSON-roundtripped).
- Validate dialog input on OK (layers, current > 0, cell > 0, parseable
frequency, extra Cu >= 0) with an inline error instead of silently
substituting defaults; parse_frequency raises on garbage; pipeline
rejects i_test <= 0; choose_cell_size rejects non-positive overrides.
- Warn when a contact part is dropped by the connectivity restriction;
floor instead of truncate in cell_of; correct the uniform-model
summary line; drop an unused variable; refresh plugin.json wording.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
DC/AC resistance, power dissipation, and via/injection-area currents of
copper zone fills. KiCad 10 IPC-API plugin (kicad-python/kipy):
multi-layer via-coupled FDM solver, multi-part terminals via User.1/User.2
marker layers, pads as contacts, uniform-injection and equipotential
contact models, per-foil skin effect, optional solder/copper buildup on
mask openings. 54-case test suite incl. exact analytic references.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
grabowski