grabowski
de7a4f8641
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.
581 lines
23 KiB
Python
581 lines
23 KiB
Python
"""Figures: per-layer rasterized maps, potential, current density, power
|
||
density, and the error figure. PNGs are saved BEFORE any window opens.
|
||
|
||
Backend: interactive if a GUI toolkit exists (Qt first, tkinter as a
|
||
fallback), else Agg with the OS default viewer on the saved PNGs so
|
||
results are never silent.
|
||
"""
|
||
from __future__ import annotations
|
||
|
||
import os
|
||
import subprocess
|
||
import sys
|
||
import textwrap
|
||
from pathlib import Path
|
||
|
||
import matplotlib
|
||
import numpy as np
|
||
|
||
|
||
def _pick_backend():
|
||
"""matplotlib.use() is lazy and 'succeeds' for backends whose GUI
|
||
toolkit is missing (KiCad's Windows Python has no tkinter), so probe
|
||
the toolkits explicitly. Qt MUST come first: PySide6 is a hard
|
||
dependency and the selection dialog / progress window put a Qt event
|
||
loop in this process, after which matplotlib refuses TkAgg
|
||
("Cannot load backend 'TkAgg' ... as 'qt' is currently running") -
|
||
exactly what happened on macOS, whose bundled Python ships tkinter.
|
||
|
||
The probe must import QtWidgets, not just the package or QtCore:
|
||
on NixOS `import PySide6` succeeds (pure __init__) while QtCore's
|
||
.so cannot find the system libraries pip wheels expect
|
||
("libgthread-2.0.so.0: cannot open shared object file"), and on a
|
||
partially provisioned system QtCore's deps (glib, icu) can be
|
||
present while QtWidgets/QtGui still miss libGL/libEGL. matplotlib's
|
||
qt backend imports QtCore, QtGui and QtWidgets, so probe the widest
|
||
one - promising QtAgg then kills even the error figure at
|
||
switch_backend time."""
|
||
for qt in ("PySide6", "PyQt6", "PyQt5", "PySide2"):
|
||
try:
|
||
__import__(qt + ".QtWidgets")
|
||
return "QtAgg" if qt in ("PySide6", "PyQt6") else "Qt5Agg"
|
||
except Exception:
|
||
continue
|
||
try:
|
||
import tkinter # noqa: F401
|
||
return "TkAgg"
|
||
except Exception:
|
||
pass
|
||
return None
|
||
|
||
|
||
INTERACTIVE_BACKEND = _pick_backend()
|
||
matplotlib.use(INTERACTIVE_BACKEND or "Agg")
|
||
|
||
import matplotlib.pyplot as plt # noqa: E402 (after backend selection)
|
||
from matplotlib.colors import ListedColormap, LogNorm # noqa: E402
|
||
from matplotlib.gridspec import GridSpec # noqa: E402
|
||
from matplotlib.patches import Patch # noqa: E402
|
||
from matplotlib.widgets import CheckButtons # noqa: E402
|
||
|
||
from . import config, progress # noqa: E402
|
||
|
||
_BG = "#f5f3f0"
|
||
_COPPER = "#c98b4e"
|
||
_E1_COLOR = "#c8385a"
|
||
_E2_COLOR = "#2f6fb0"
|
||
_VIA_COLOR = "#2d6b45"
|
||
_PAD_COLOR = "#5b4a8a" # THT pad barrels (kind='pad'), violet-ink
|
||
_SOLDER = "#9aa3ad" # tin-gray: solder buildup areas
|
||
_PLUG = "#6e7885" # darker tin: solder-filled THT holes (lead + plug)
|
||
_MESH = "#a56c33" # darker copper: adaptive leaf boundaries
|
||
_INK = "#3a3a3a"
|
||
_GRID_INK = "#b8b4ae"
|
||
|
||
|
||
def _fmt_si(value: float, unit: str) -> str:
|
||
for scale, prefix in ((1.0, ""), (1e-3, "m"), (1e-6, "µ")):
|
||
if abs(value) >= scale:
|
||
return f"{value / scale:.4g} {prefix}{unit}"
|
||
return f"{value:.3g} {unit}"
|
||
|
||
|
||
def _suptitle(problem, stack, result=None) -> str:
|
||
ny, nx = stack.shape2d
|
||
parts = []
|
||
if result is not None:
|
||
parts.append(f"R = {result.R_ohm * 1000:.4g} mΩ")
|
||
parts.append(f"P = {_fmt_si(result.P_total, 'W')} @ "
|
||
f"{result.i_test:g} A")
|
||
if result.freq_hz > 0:
|
||
parts.append(f"f = {result.freq_hz / 1e3:g} kHz "
|
||
f"(δ={result.skin_depth_um:.0f} µm, lower bound)")
|
||
parts.append(problem.net_name)
|
||
parts.append(f"{nx}×{ny}×{stack.nlayers} @ {stack.h_nm / 1000:.0f} µm")
|
||
return " | ".join(parts)
|
||
|
||
|
||
def _layer_windows(stack, window_title: str, paint, finalize):
|
||
"""Figure with one row per VISIBLE layer. Multi-layer figures on an
|
||
interactive backend get a layer checkbox panel: unticking a layer
|
||
removes its row and the remaining rows grow to fill the window (the
|
||
constrained layout reflows on every draw). paint(ax, li) draws one
|
||
layer; finalize(fig, rows) with rows = [(li, ax), ...] adds the
|
||
legend/colorbar/suptitle and returns artists to drop on the next
|
||
redraw (colorbars). Saved PNGs always contain every layer - they
|
||
are written before the window shows, with the panel hidden."""
|
||
L = stack.nlayers
|
||
ny, nx = stack.shape2d
|
||
aspect = ny / nx
|
||
w = 9.5
|
||
row_h = min(max(w * aspect * 0.9 + 0.6, 1.8), 8.5 / L)
|
||
fig = plt.figure(figsize=(w, row_h * L + 1.4), layout="constrained")
|
||
if INTERACTIVE_BACKEND:
|
||
fig.canvas.manager.set_window_title(window_title)
|
||
|
||
checks = None
|
||
if L > 1 and INTERACTIVE_BACKEND:
|
||
# reserve a strip on the right for the layer checkboxes
|
||
fig.get_layout_engine().set(rect=(0, 0, 0.86, 1))
|
||
h_panel = min(0.05 + 0.045 * L, 0.35)
|
||
panel = fig.add_axes([0.865, 0.96 - h_panel, 0.13, h_panel])
|
||
panel.set_in_layout(False)
|
||
checks = CheckButtons(panel, stack.layer_names, [True] * L)
|
||
for t in checks.labels:
|
||
t.set_fontsize(7)
|
||
fig._layer_panel = panel # hidden while saving PNGs
|
||
|
||
state = {"visible": [True] * L, "axes": [], "extras": [],
|
||
"guard": False}
|
||
|
||
def redraw():
|
||
for ax in state["axes"]:
|
||
ax.remove()
|
||
for art in state["extras"]:
|
||
try:
|
||
art.remove()
|
||
except Exception:
|
||
pass
|
||
state["axes"], state["extras"] = [], []
|
||
shown = [li for li in range(L) if state["visible"][li]]
|
||
if not shown:
|
||
fig.canvas.draw_idle()
|
||
return
|
||
gs = GridSpec(len(shown), 1, figure=fig)
|
||
rows = []
|
||
share = None
|
||
for k, li in enumerate(shown):
|
||
ax = fig.add_subplot(gs[k], sharex=share, sharey=share)
|
||
if share is None:
|
||
share = ax
|
||
ax.set_ylabel(f"{stack.layer_names[li]}\ny [mm]", fontsize=8)
|
||
ax.tick_params(colors=_INK, labelsize=8)
|
||
for sp in ax.spines.values():
|
||
sp.set_color(_GRID_INK)
|
||
paint(ax, li)
|
||
rows.append((li, ax))
|
||
for _, ax in rows:
|
||
ax.label_outer()
|
||
rows[-1][1].set_xlabel("x [mm]")
|
||
state["axes"] = [ax for _, ax in rows]
|
||
state["extras"] = list(finalize(fig, rows) or [])
|
||
fig.canvas.draw_idle()
|
||
|
||
def on_check(label):
|
||
if state["guard"]:
|
||
return
|
||
li = stack.layer_names.index(label)
|
||
if state["visible"][li] and sum(state["visible"]) == 1:
|
||
state["guard"] = True # keep at least one layer visible
|
||
checks.set_active(li)
|
||
state["guard"] = False
|
||
return
|
||
state["visible"][li] = not state["visible"][li]
|
||
redraw()
|
||
|
||
if checks is not None:
|
||
checks.on_clicked(on_check)
|
||
fig._layer_checks = checks # keep the widget alive / testable
|
||
redraw()
|
||
return fig
|
||
|
||
|
||
def _electrode_labels(ax, stack, e1_l, e2_l):
|
||
"""Label each connected contact part (multi-part terminals get one
|
||
label per island, largest first, up to 4)."""
|
||
from scipy import ndimage
|
||
for e, label, color in ((e1_l, "V+", _E1_COLOR), (e2_l, "V−", _E2_COLOR)):
|
||
if not e.any():
|
||
continue
|
||
labels, n = ndimage.label(e)
|
||
sizes = ndimage.sum_labels(np.ones_like(labels), labels,
|
||
range(1, n + 1))
|
||
order = np.argsort(sizes)[::-1][:4] + 1
|
||
for comp in order:
|
||
ii, jj = np.nonzero(labels == comp)
|
||
cx = (stack.x0_nm + (jj.mean() + 0.5) * stack.h_nm) * 1e-6
|
||
cy = (stack.y0_nm + (ii.mean() + 0.5) * stack.h_nm) * 1e-6
|
||
ax.annotate(label, (cx, cy), xytext=(0, 0),
|
||
textcoords="offset points", color="white",
|
||
fontsize=9, fontweight="bold", ha="center",
|
||
va="center",
|
||
bbox=dict(boxstyle="round,pad=0.2", fc=color,
|
||
ec="none", alpha=0.9))
|
||
|
||
|
||
def _via_markers(ax, problem, layer):
|
||
"""One dot per barrel spanning the layer: vias green, THT pad
|
||
barrels violet (same joint markers, different physics)."""
|
||
for kind, color in (("via", _VIA_COLOR), ("pad", _PAD_COLOR)):
|
||
pts = [(v.x * 1e-6, v.y * 1e-6) for v in problem.vias
|
||
if v.kind == kind and v.spans(layer.z_nm)]
|
||
if pts:
|
||
xs, ys = zip(*pts)
|
||
ax.plot(xs, ys, ".", ms=2.5, color=color, alpha=0.7)
|
||
|
||
|
||
def area_tag(sign: str, index: int) -> str:
|
||
"""Short injection-area tag: P1, P2, ... for V+; N1, N2, ... for V-."""
|
||
return f"{'P' if sign == '+' else 'N'}{index + 1}"
|
||
|
||
|
||
def _injection_area_labels(ax, li, layer_name, problem, result):
|
||
"""Mark every injection area with its short tag (currents live in
|
||
the legend)."""
|
||
groups = ((problem.electrodes1, "+", _E1_COLOR),
|
||
(problem.electrodes2, "-", _E2_COLOR))
|
||
for parts, sign, color in groups:
|
||
for i, el in enumerate(parts):
|
||
if el.contact != "all" and el.contact != layer_name:
|
||
continue
|
||
cx = (el.rect.x0 + el.rect.x1) / 2e6
|
||
cy = (el.rect.y0 + el.rect.y1) / 2e6
|
||
ax.annotate(area_tag(sign, i), (cx, cy), xytext=(0, 0),
|
||
textcoords="offset points", color="white",
|
||
fontsize=8, fontweight="bold", ha="center",
|
||
va="center",
|
||
bbox=dict(boxstyle="round,pad=0.15", fc=color,
|
||
ec="none", alpha=0.9))
|
||
|
||
|
||
def fig_raster(stack, e1, e2, problem, result=None):
|
||
cmap = ListedColormap([_BG, _COPPER, _E1_COLOR, _E2_COLOR, _SOLDER,
|
||
_MESH, _PLUG])
|
||
has_buildup = stack.buildup is not None and stack.buildup.any()
|
||
has_plug = stack.plug is not None and stack.plug.any()
|
||
has_mesh = stack.mesh is not None and stack.mesh.any()
|
||
|
||
def paint(ax, li):
|
||
codes = np.zeros(stack.shape2d, dtype=np.uint8)
|
||
codes[stack.masks[li]] = 1
|
||
if has_buildup:
|
||
codes[stack.buildup[li]] = 4
|
||
if has_plug:
|
||
codes[stack.plug[li]] = 6
|
||
if has_mesh:
|
||
codes[stack.mesh[li]] = 5
|
||
codes[e1[li]] = 2
|
||
codes[e2[li]] = 3
|
||
ax.imshow(codes, cmap=cmap, vmin=0, vmax=6, origin="upper",
|
||
extent=stack.extent_mm(), interpolation="nearest")
|
||
_via_markers(ax, problem, problem.layers[li])
|
||
if result is not None and (result.part_currents1
|
||
or result.part_currents2):
|
||
_injection_area_labels(ax, li, stack.layer_names[li], problem,
|
||
result)
|
||
else:
|
||
_electrode_labels(ax, stack, e1[li], e2[li])
|
||
|
||
def finalize(fig, rows):
|
||
kinds = {v.kind for v in problem.vias}
|
||
handles = [Patch(fc=_COPPER, label="copper")]
|
||
if "via" in kinds or not kinds:
|
||
handles.append(Patch(fc=_VIA_COLOR, label="vias"))
|
||
if "pad" in kinds:
|
||
handles.append(Patch(fc=_PAD_COLOR, label="THT pad barrels"))
|
||
if has_mesh:
|
||
handles.append(Patch(fc=_MESH,
|
||
label="adaptive mesh (coarse leaves)"))
|
||
if has_buildup:
|
||
handles.append(Patch(
|
||
fc=_SOLDER,
|
||
label=f"solder buildup "
|
||
f"({problem.solder_thickness_nm / 1000:.0f} µm"
|
||
+ (f" + {problem.extra_cu_nm / 1000:.0f} µm Cu"
|
||
if problem.extra_cu_nm else "") + ")"))
|
||
if has_plug:
|
||
handles.append(Patch(
|
||
fc=_PLUG, label="solder-filled THT hole (lead + solder)"))
|
||
if result is not None and (result.part_currents1
|
||
or result.part_currents2):
|
||
entries = ([("+", _E1_COLOR, i, amps)
|
||
for i, (_, amps) in
|
||
enumerate(result.part_currents1)]
|
||
+ [("-", _E2_COLOR, i, amps)
|
||
for i, (_, amps) in
|
||
enumerate(result.part_currents2)])
|
||
shown = entries[:14]
|
||
for sign, color, i, amps in shown:
|
||
handles.append(Patch(
|
||
fc=color,
|
||
label=f"{area_tag(sign, i)}: {amps:.3g} A "
|
||
f"({100 * amps / result.i_test:.0f}%)"))
|
||
if len(entries) > len(shown):
|
||
handles.append(Patch(
|
||
fc="#00000000",
|
||
label=f"... +{len(entries) - len(shown)} "
|
||
f"more in summary.txt"))
|
||
else:
|
||
handles += [Patch(fc=_E1_COLOR, label="V+"),
|
||
Patch(fc=_E2_COLOR, label="V−")]
|
||
rows[0][1].legend(handles=handles, loc="upper right", fontsize=7,
|
||
framealpha=0.9)
|
||
fig.suptitle("Rasterized fill + electrodes | "
|
||
+ _suptitle(problem, stack, result), fontsize=10,
|
||
color=_INK)
|
||
return []
|
||
|
||
return _layer_windows(stack, "Fill Resistance - rasterized map",
|
||
paint, finalize)
|
||
|
||
|
||
def fig_potential(result, stack, e1, e2, problem):
|
||
vmax = float(np.nanmax(result.V))
|
||
# uniform model: <V-> = 0 is the reference, individual V- cells can
|
||
# sit slightly below it - keep them in range instead of clipping
|
||
vmin = min(0.0, float(np.nanmin(result.V)))
|
||
unit, scale = ("mV", 1e3) if vmax < 0.1 else ("V", 1.0)
|
||
cmap = matplotlib.colormaps[config.CMAP_POTENTIAL].copy()
|
||
cmap.set_bad(_BG)
|
||
|
||
def paint(ax, li):
|
||
vs = result.V[li] * scale
|
||
ax._im = ax.imshow(vs, cmap=cmap, vmin=vmin * scale,
|
||
vmax=vmax * scale, origin="upper",
|
||
extent=stack.extent_mm(),
|
||
interpolation="nearest")
|
||
if np.isfinite(vs).sum() > 4:
|
||
ext = stack.extent_mm()
|
||
ny, nx = stack.shape2d
|
||
xs = np.linspace(ext[0], ext[1], nx, endpoint=False)
|
||
xs += (xs[1] - xs[0]) / 2
|
||
ys = np.linspace(ext[3], ext[2], ny, endpoint=False)
|
||
ys += (ys[1] - ys[0]) / 2
|
||
with np.errstate(invalid="ignore"):
|
||
ax.contour(xs, ys, vs, levels=15, colors="white",
|
||
linewidths=0.4, alpha=0.5)
|
||
_electrode_labels(ax, stack, e1[li], e2[li])
|
||
|
||
def finalize(fig, rows):
|
||
cb = fig.colorbar(rows[0][1]._im, ax=[ax for _, ax in rows],
|
||
shrink=0.85)
|
||
cb.set_label(f"potential [{unit}] @ {result.i_test:g} A",
|
||
fontsize=9)
|
||
fig.suptitle("Potential | " + _suptitle(problem, stack, result),
|
||
fontsize=10, color=_INK)
|
||
return [cb]
|
||
|
||
return _layer_windows(stack, "Fill Resistance - potential", paint,
|
||
finalize)
|
||
|
||
|
||
def _field_fig(result, stack, e1, e2, problem, data3, cmap_name, dyn_range,
|
||
label, title, window, paint_extra=None, finalize_extra=None):
|
||
"""Shared per-layer LogNorm field figure (current, power)."""
|
||
vmax = float(np.nanmax(data3))
|
||
cmap = matplotlib.colormaps[cmap_name].copy()
|
||
cmap.set_bad(_BG)
|
||
if config.LOG_CURRENT_SCALE and vmax > 0:
|
||
norm = LogNorm(vmin=vmax / dyn_range, vmax=vmax)
|
||
else:
|
||
norm = None
|
||
if vmax > 0:
|
||
mli, mi, mj = np.unravel_index(np.nanargmax(data3), data3.shape)
|
||
mx = (stack.x0_nm + (mj + 0.5) * stack.h_nm) * 1e-6
|
||
my = (stack.y0_nm + (mi + 0.5) * stack.h_nm) * 1e-6
|
||
|
||
def paint(ax, li):
|
||
d = data3[li]
|
||
shown = np.clip(d, vmax / dyn_range, None) if norm is not None else d
|
||
ax._im = ax.imshow(shown, cmap=cmap, norm=norm, origin="upper",
|
||
extent=stack.extent_mm(),
|
||
interpolation="nearest")
|
||
_electrode_labels(ax, stack, e1[li], e2[li])
|
||
if vmax > 0 and li == mli:
|
||
ax.plot(mx, my, "o", ms=9, mfc="none", mec="white", mew=1.4)
|
||
ax.annotate(f"max {vmax:.3g}", (mx, my), xytext=(10, -10),
|
||
textcoords="offset points", color="white",
|
||
fontsize=8,
|
||
bbox=dict(boxstyle="round,pad=0.2", fc="#00000088",
|
||
ec="none"))
|
||
if paint_extra is not None:
|
||
paint_extra(ax, li)
|
||
|
||
def finalize(fig, rows):
|
||
cb = fig.colorbar(rows[0][1]._im, ax=[ax for _, ax in rows],
|
||
shrink=0.85)
|
||
cb.set_label(label, fontsize=9)
|
||
fig.suptitle(title + " | " + _suptitle(problem, stack, result),
|
||
fontsize=10, color=_INK)
|
||
if finalize_extra is not None:
|
||
finalize_extra(fig, rows)
|
||
return [cb]
|
||
|
||
return _layer_windows(stack, window, paint, finalize)
|
||
|
||
|
||
def fig_current(result, stack, e1, e2, problem):
|
||
v = result.via_reports[0] if result.via_reports else None
|
||
|
||
def paint_extra(ax, li):
|
||
if v is not None:
|
||
ax.plot(v.x_mm, v.y_mm, "s", ms=7, mfc="none", mec="#7fe0a8",
|
||
mew=1.2)
|
||
|
||
def finalize_extra(fig, rows):
|
||
if v is not None:
|
||
rows[0][1].annotate(
|
||
f"hottest via {v.current_a:.3g} A", (v.x_mm, v.y_mm),
|
||
xytext=(10, 10), textcoords="offset points",
|
||
color="white", fontsize=8,
|
||
bbox=dict(boxstyle="round,pad=0.2", fc="#2d6b45",
|
||
ec="none"))
|
||
|
||
return _field_fig(
|
||
result, stack, e1, e2, problem, result.Jmag * 1e-6,
|
||
config.CMAP_CURRENT, config.CURRENT_DYNAMIC_RANGE,
|
||
f"|J| [A/mm²] @ {result.i_test:g} A",
|
||
"Current density (log)", "Fill Resistance - current density",
|
||
paint_extra=paint_extra, finalize_extra=finalize_extra)
|
||
|
||
|
||
def fig_power(result, stack, e1, e2, problem):
|
||
def paint_extra(ax, li):
|
||
ax.set_title(f"P({stack.layer_names[li]}) = "
|
||
f"{_fmt_si(result.P_layers[li], 'W')}",
|
||
fontsize=8, color=_INK, loc="right", pad=2)
|
||
|
||
# W/m^2 -> W/mm^2
|
||
return _field_fig(
|
||
result, stack, e1, e2, problem, result.Parea * 1e-6,
|
||
config.CMAP_POWER, config.POWER_DYNAMIC_RANGE,
|
||
f"p [W/mm²] @ {result.i_test:g} A",
|
||
"Power density (log)", "Fill Resistance - power density",
|
||
paint_extra=paint_extra)
|
||
|
||
|
||
def fig_error(message: str):
|
||
fig, ax = plt.subplots(figsize=(9, 4.5), layout="constrained")
|
||
ax.axis("off")
|
||
ax.set_title("Fill Resistance - ERROR", color="#b02a2a",
|
||
fontsize=14, fontweight="bold", loc="left")
|
||
wrapped = "\n".join(
|
||
textwrap.fill(line, width=90) for line in message.splitlines()
|
||
)
|
||
ax.text(0.0, 0.95, wrapped, family="monospace", fontsize=9,
|
||
va="top", ha="left", color=_INK, transform=ax.transAxes)
|
||
return fig
|
||
|
||
|
||
def _resolve_label_overlaps(fig):
|
||
"""Measure every annotation's rendered box and greedily push
|
||
overlapping labels upward until nothing collides. Runs on the real
|
||
renderer, so it handles any font/DPI."""
|
||
from matplotlib.text import Annotation
|
||
try:
|
||
fig.canvas.draw()
|
||
renderer = fig.canvas.get_renderer()
|
||
except Exception:
|
||
return
|
||
for ax in fig.axes:
|
||
anns = [c for c in ax.get_children() if isinstance(c, Annotation)]
|
||
placed = []
|
||
for a in sorted(anns, key=lambda t: t.get_window_extent(renderer).x0):
|
||
try:
|
||
bb = a.get_window_extent(renderer)
|
||
except Exception:
|
||
continue
|
||
guard = 50
|
||
while guard > 0:
|
||
hit = next((p for p in placed if bb.overlaps(p)), None)
|
||
if hit is None:
|
||
break
|
||
push_px = (hit.y1 - bb.y0) + 3.0
|
||
dx, dy = a.xyann
|
||
a.xyann = (dx, dy + push_px * 72.0 / fig.dpi)
|
||
bb = a.get_window_extent(renderer)
|
||
guard -= 1
|
||
placed.append(bb)
|
||
|
||
|
||
def _fit_to_screen(fig) -> None:
|
||
"""Best effort: shrink the window so it fits the screen. Runs AFTER
|
||
the PNGs are saved (so their size is unaffected); the constrained
|
||
layout reflows the content on every subsequent resize."""
|
||
try:
|
||
win = fig.canvas.manager.window
|
||
if hasattr(win, "screen"): # Qt
|
||
avail = win.screen().availableGeometry()
|
||
sw, sh = avail.width(), avail.height()
|
||
elif hasattr(win, "winfo_screenwidth"): # Tk
|
||
sw, sh = win.winfo_screenwidth(), win.winfo_screenheight()
|
||
else:
|
||
return
|
||
w, h = fig.get_size_inches()
|
||
scale = min(0.9 * sw / (w * fig.dpi), 0.85 * sh / (h * fig.dpi), 1.0)
|
||
if scale < 1.0:
|
||
fig.set_size_inches(w * scale, h * scale, forward=True)
|
||
except Exception:
|
||
pass
|
||
|
||
|
||
def _raise_windows():
|
||
"""Best effort: bring plot windows in front of KiCad (windows spawned
|
||
by a background process tend to open behind)."""
|
||
for num in plt.get_fignums():
|
||
try:
|
||
win = plt.figure(num).canvas.manager.window
|
||
if hasattr(win, "attributes"): # Tk
|
||
win.attributes("-topmost", True)
|
||
win.after(300, lambda w=win: w.attributes("-topmost", False))
|
||
else: # Qt
|
||
win.raise_()
|
||
win.activateWindow()
|
||
except Exception:
|
||
pass
|
||
|
||
|
||
def save_and_show(figs_named: list[tuple], outdir: Path | None,
|
||
show: bool = True) -> list[Path]:
|
||
"""figs_named: [(figure, basename), ...]. Saves first, then shows."""
|
||
saved = []
|
||
progress.stage("laying out figures ...", echo=False)
|
||
for fig, _ in figs_named:
|
||
_resolve_label_overlaps(fig)
|
||
if outdir is not None:
|
||
outdir.mkdir(parents=True, exist_ok=True)
|
||
for fig, name in figs_named:
|
||
# full-DPI savefig with tight bounding boxes is seconds per
|
||
# figure - the progress window has to stay up for it
|
||
progress.stage(f"saving {name}.png ...", echo=False)
|
||
panel = getattr(fig, "_layer_panel", None)
|
||
if panel is not None:
|
||
panel.set_visible(False) # PNGs carry no checkboxes
|
||
p = outdir / f"{name}.png"
|
||
fig.savefig(p, dpi=config.DPI, facecolor="white",
|
||
bbox_inches="tight")
|
||
if panel is not None:
|
||
panel.set_visible(True)
|
||
saved.append(p)
|
||
print(f"saved {p}")
|
||
if show and config.INTERACTIVE:
|
||
if INTERACTIVE_BACKEND:
|
||
progress.stage("opening the figure windows ...", echo=False)
|
||
for fig, _ in figs_named:
|
||
_fit_to_screen(fig)
|
||
progress.done() # last thing before the figures are up
|
||
_raise_windows()
|
||
plt.show()
|
||
else:
|
||
progress.done()
|
||
for p in saved:
|
||
_open_in_viewer(p)
|
||
else:
|
||
progress.done()
|
||
plt.close("all")
|
||
return saved
|
||
|
||
|
||
def _open_in_viewer(path: Path) -> None:
|
||
"""Open a saved PNG in the OS default viewer (no-GUI-backend
|
||
fallback so results are never silent)."""
|
||
try:
|
||
if sys.platform == "win32":
|
||
os.startfile(path)
|
||
elif sys.platform == "darwin":
|
||
subprocess.Popen(["open", str(path)])
|
||
else:
|
||
subprocess.Popen(["xdg-open", str(path)])
|
||
except Exception:
|
||
pass
|