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Xfig at a glance
Xfig
Xfig began in 1985 and accumulated decades of maintenance and export tooling, which made the .fig format a durable bridge between interactive diagram editing on Unix systems and downstream conversion to PostScript, PDF, and other outputs.
SGI at a glance
SGI
Before today's relatively small set of mainstream consumer image formats dominated everyday use, desktop software, workstations, GUI systems, and early graphics tools produced many specialized raster formats with local importance.
Format comparison
| Feature | Xfig | SGI |
|---|---|---|
| File type | Vector | Image |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | scalable | depends |
| File size characteristics | small | medium |
| Compatibility | moderate | broad |
| Editability | high | moderate |
| Created year | 1985 | 1990 |
| Inventor | Supoj Sutanthavibul | Silicon Graphics Inc. |
| Status | legacy | legacy |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | good | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | design | delivery |
| Layer support | Not supported | Not supported |
| Vector scaling | Supported | Not supported |
When to use each format
When to use Xfig
- illustration
- diagramming
- brand asset delivery
- Preserves object-level editability for technical diagrams.
When to use SGI
- capture ingest
- editing
- web or print delivery
- Important for long-tail compatibility and archival conversion.
FAQs
Why convert Xfig to SGI?
Choose SGI as target when recovering or maintaining compatibility with workstation-era graphics assets and archives.
What changes when converting Xfig to SGI?
Convert to SGI when recovering or maintaining compatibility with workstation-era graphics assets and archives. It is useful mainly for migration, restoration, and historical graphics interoperability.
What should I review after converting Xfig to SGI?
After conversion, review these destination checks: Open converted output in ImageMagick and verify behavior on real samples; Compare output against the expected depends quality profile; Poor fit for modern mainstream publishing.
How can I keep quality stable in Xfig to SGI conversion?
Run representative samples, keep settings deterministic, and monitor these risks: Tool support can be uneven and workflow-specific; Poor fit for modern mainstream publishing; Validate destination compatibility before large-batch conversion.