At IFC save time each link reference Description gains a loaded flag
(is_loaded and not is_hidden), extending the same JSON blob that
carries the include/exclude filter; plain legacy strings decode as
no-autoload. On project open, load_linked_models_from_ifc replays
flagged links via load_link after restoring the list, warning and
skipping missing files so they cannot break the open.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The displayed labels changed from Query to Include to pair with
Exclude; the property identifier stays query for script and
persistence compatibility.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
bim.reload_all_links reloads every loaded linked model via
argument-less reload_link calls, so each link replays its stored
path/query/exclude and rebuilds its cache from disk. Unloaded links
are left alone. Drawn as a refresh button beside Link IFC.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
A single selector query cannot express set differences (the grammar
only unions groups, and the parent facet cannot negate), so links now
carry an Exclude query beside the include, mirroring the drawing
Include/Exclude pattern: final set = include (or the default set when
empty) minus exclude. Applied in LoadLinkedProject and per link in
create_drawing so prints match the viewport.
The cache key hashes both strings when an exclude exists - keying on
the query alone would let same-include/different-exclude links serve
each other's geometry. Include-only filters keep the pre-exclude hash
and empty filters the legacy names, so existing caches stay valid.
Persistence in IfcDocumentReference.Description stays backwards
compatible: a plain include is stored as-is, an exclude promotes the
value to a small JSON blob, and non-JSON decodes as a legacy include.
The Exclude field appears in Link IFC and the Reload Link dialog
(carried through the file browser round trip, SKIP_SAVE like the rest).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
BISECT cut mode deletes the serializer cut linework and regenerates it
by bisecting Blender mesh objects, which linked models do not have -
their cuts were deleted and never regenerated, so linked elements only
appeared as projections and the .cut CSS rule never applied to them.
remove_cut_linework now only removes cut groups whose guid resolves in
the host file, keeping the serializer cut geometry for linked models.
Resolving a linked entity STEP id via tool.Ifc.get_object cross-matches
into the host session and can return an arbitrary host object (e.g. the
drawing camera), so generate_material_layers and the linework merge now
guard on element.file identity.
BISECT mode also runs move_projection_to_bottom like OPENCASCADE mode:
its own bisect cuts are appended last, but the retained serializer cuts
of linked models are emitted before the projections and would paint
underneath.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
create_drawing opened linked IFCs raw, so a moved link serialized at
its original coordinates and its elements fell outside the drawing.
The stored link transformation is the model-space delta, so it is now
baked into the linework iterator via the model-offset/model-rotation
settings (Trans @ Rot composition matches the rigid matrix
decomposition; the plan-view Z offset adds onto the translation).
The serialization loop also collapsed same-file links into a dict
keyed by filepath, dropping all but the last link. It now iterates one
entry per link and intersects each link's drawing elements with its
selector query, so drawings show what each link displays in the
viewport. Adds tool.Project.get_link_transformation_matrix as the
shared accessor for the stored 4x4.
Verified headless: window link moved +5m appears offset by exactly
5m x scale; unmoved door link at its native position; both present.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
get_linked_models_documents keyed documents by the stored Location, so
linking the same file first with a relative path and then an absolute
one (or vice versa) created a duplicate IfcDocumentInformation. Both
the keys and the LinkIfc lookup now normalize through resolve_uri.
Also record the PR #8242 review round decisions in the dev note.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Living design note per the docs/dev-notes convention: problem, key
facts (library-per-path reuse, SKIP_SAVE last-used-property retention,
IfcDocumentReference conventions, link matrix math), per-feature design
decisions, commit map, and open test items.
Generated with the assistance of an AI coding tool.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Ryan Schultz