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cadcraft/docs
69f2b9724a Save xref layer overrides with the host, in DXF and DWG (fixes #886) (#889)
A colour or freeze set in the host on an xref's layers (xref|layer) was lost on save:
the saved view dropped every xref-dependent symbol, layers included, and the DWG save goes
through the same DXF tags. The reader already keeps such layers when the xref loads.

The xref's layers are now written as xref-dependent LAYER records (DXF Reference, LAYER
group 70: 16 externally dependent, 32 resolved), as AutoCAD does with VISRETAIN = 1, with
the xref linetypes they use (same flags): without them a DWG falls back to Continuous.

Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 04:46:45 -04:00
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