Module split 

Split command — extracts individual objects from a 3MF file into separate output files.

This module implements the core split engine for the 3mf split command. The split pipeline:

1. Load the source 3MF file with full attachments
2. Check for secure content (signing/encryption) — error if found
3. Collect all split targets (by build item or by object resource)
4. Apply –select filter to cherry-pick specific items
5. Phase 1 — Trace dependencies for ALL items before writing any files (dry-run output or validate completeness)
6. Phase 2 — Write each split model to a separate output file
7. Print summary of written files

Enums

SplitMode

Determines how the source 3MF is partitioned into output files.

Functions

run

Entry point for the split command.