EzdxfBackend.drawing_export_pdf routed layout=None / layout="Model" through
_msp(), which follows the current tab, so with a sheet current the "Model"
PDF was that sheet's paper-space content with no refusal — the same defect
finding 3 named on COM, still live on the headless engine. Measured: circle
in model space, 390x270 rectangle on an A3 sheet, sheet current — the Model
row's /MediaBox was 176.1x121.9 mm (the rectangle) instead of 121.9x121.9
(the circle). The model target is now doc.modelspace() whichever tab is
current, on both entry points.
The test that vouched for this only asserted the row's shape (paper is None,
true by construction). It is replaced by two tests that prove content: the
Model row's mediabox with a sheet current equals the one with Model current
and carries the circle's square aspect, and drawing_export_pdf(path) with no
layout does the same. Both fail without the backend change. plot.py's
docstring now says which engine does what.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
Three review findings against SECTION 19 on the live engine, each measured
on AutoCAD 2026 in a scratch document with the operator's BACKGROUNDPLOT=2:
- plot_style_list read Preferences.Files.PrintStyleSheetPath; the ActiveX
member is PrinterStyleSheetPath, so the AttributeError was swallowed and
every row came back installed=None. Renamed in the backend, the server
docstring and the test fake (which faked the same wrong name). Live: 13
rows, all 9 catalogue ctb files installed, four .stb files as installed.
- ComBackend.drawing_export_pdf returned ok before any file existed under
background plotting, so batch_plot died on path.stat() with an unhandled
FileNotFoundError and a later foreground plot raised E_FAIL. The export
now sets BACKGROUNDPLOT=0 around PlotToFile (restored after), honours the
method's bool and reports ok only with the file on disk (bytes included).
batch_plot turns a backend RuntimeError or a phantom ok into a per-row
ok:false, keeping the rows already plotted.
- With a sheet current, the Model row was that sheet plotted again: the COM
export switched tabs only when a layout was named. layout=None now makes
Model current (restoring the tab), and batch_plot names every layout,
Model included, so both engines plot the tab the row is labelled with.
Live: Model row /Title (Model) at 210x297 beside the A3 sheet, the active
tab and BACKGROUNDPLOT restored.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FKFStjEFzpGyLq5bMpWxTd
