XCLIP clips block and xref references to a rectangular, polygonal or
closed-polyline boundary (Invert clip, ON/OFF, Delete, generate Polyline;
Clipdepth is ignored in 2D). The boundary is Insert::clip, in block
coordinates, so it follows its reference; other references stay whole.
Clipped references are drawn, plotted and framed (XCLIPFRAME 0/1/2) cut
to the boundary, attributes included, and their extents are cut to it.
DXF and DWG read and write it as the reference's ACAD_FILTER/SPATIAL
SPATIAL_FILTER; filters the model can't hold stay foreign data. Gap F2.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
BLOCKREPLACE (and -BLOCKREPLACE) turns every reference of one block, in
model space, the layouts and other blocks, into a reference of another
block at the same insertion point, scale and rotation. Each new
reference carries the replacement's attributes, with the values of the
tags both blocks define, and is annotative when the replacement is.
The command then asks whether to purge the replaced definition, and
removes it only when no dimension style names it and no block
reference, dimension or multileader in the drawing or in another block
definition does.
The command refuses a replacement that references the block it
replaces, a dynamic block as the block to replace, and blocks that
come from an xref. It does not run while the Block Editor or REFEDIT
is open. The ATTSYNC helpers in blocks/attribs.rs walk the references
and build the new attributes.
The self-reference check that BLOCK, INSERT of a file, REFCLOSE and
Lisp block creation share now also follows dimension blocks and
multileader block content, so BLOCK no longer accepts a redefinition
of A from a multileader whose content is A.
docs/parity-checklist.md is regenerated.
