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3MF: export, and 3MF/STL import as mesh bodies

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Export: ExportCommand/CLI --out/MCP export with .3mf write a 3MF Core package
([Content_Types].xml, _rels/.rels, 3D/3dmodel.model; millimetres), one
mesh object and build item per body, named after it, vertices shared and
welded watertight (T-junctions between faces split), base-material colours
when bodies carry one (STEP colours now ride on bodies). Tessellation as
for STL. File > Export 3MF.

Import: doc.open/drag-drop/CLI/MCP open accept .3mf and .stl; Insert Mesh
(ParaMeshInsertAlignCommand) adds them to a design as a MeshImport feature.
Kernel mesh bodies render, measure exactly, move and export; solid
features refuse them with a clear error. 3MF reading flattens components
and build transforms, converts units, reads colours; sizes, entries,
nesting and element counts are capped.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
This commit is contained in:
bherbruckandClaude Opus 5.5 committed 2026-10-07 21:30:38 +00:00
1 parent 043a542e29
commit ea3dd0ed6e
30 files changed
+1361 -47
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Cargo.lock
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@@ -183,6 +183,15 @@ dependencies = [
"num-traits",
]
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name = "arbitrary"
version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
"derive_arbitrary",
]
[[package]]
name = "arboard"
version = "3.6.1"
@@ -774,6 +783,17 @@ version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f27ae1dd37df86211c42e150270f82743308803d90a6f6e6651cd730d5e1732f"
[[package]]
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dependencies = [
"proc-macro2",
"quote",
"syn 3.0.6",
]
[[package]]
name = "derive_more"
version = "0.99.20"
@@ -2574,6 +2594,15 @@ dependencies = [
"serde",
]
[[package]]
name = "quick-xml"
version = "0.38.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b66c2058c55a409d601666cffe35f04333cf1013010882cec174a7467cd4e21c"
dependencies = [
"memchr 2.8.3",
]
[[package]]
name = "quick-xml"
version = "0.41.0"
@@ -3115,10 +3144,12 @@ dependencies = [
name = "solvecraft-io"
version = "0.1.0"
dependencies = [
"quick-xml 0.38.4",
"solvecraft-doc",
"solvecraft-geom",
"solvecraft-kernel",
"thiserror 2.0.21",
"zip",
]
[[package]]
@@ -4629,6 +4660,20 @@ dependencies = [
"syn 2.0.119",
]
[[package]]
name = "zip"
version = "3.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "12598812502ed0105f607f941c386f43d441e00148fce9dec3ca5ffb0bde9308"
dependencies = [
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"crc32fast",
"flate2",
"indexmap",
"memchr 2.8.3",
"zopfli",
]
[[package]]
name = "zlib-rs"
version = "0.6.8"
@@ -4641,6 +4686,18 @@ version = "1.0.23"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "29666d0abbfad1e3dc4dcf6144730dd3a3ab225bbbdac83319345b1b44ccfc1b"
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f05cd8797d63865425ff89b5c4a48804f35ba0ce8d125800027ad6017d2b5249"
dependencies = [
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"crc32fast",
"log",
"simd-adler32",
]
[[package]]
name = "zune-core"
version = "0.5.3"