panda/agent_jrxml
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bb6cc6e2415ab9de19eb85dfda50b07cdb77975c
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3 Commits

Author SHA1 Message Date
panda bb6cc6e241 feat: add Java JRXML-to-PNG rendering pipeline with pixel-level SSIM comparison 
- lib/java/: Java renderer (JrxmlRenderer) using JasperReports 6.21.0
  - JrxmlDebug for diagnostics, JrxmlGen for format reference
  - download_jars.sh for one-time dependency setup
- agent/nodes.py: _render_jrxml_to_png() and _compute_pixel_similarity()
  - Pixel comparison integrates into validate node (SSIM < 0.4 fails)
  - Pixel fidelity context injected into correct_jrxml for targeted fixes
- tests/test_pixel_comparison.py: 15 unit tests (render, SSIM, integration)
- .gitignore: exclude lib/java/*.jar, lib/java/*.class, tmp/
- CLAUDE.md: v11 changelog documenting the rendering pipeline
- All non-LLM tests pass (97/97)
 2026-05-23 15:09:55 +08:00
panda 4dfc418fc5 fix: escape {field_N} braces in prompt templates to prevent .format() KeyError 
$F{field_1} literal text in skeleton_generation/refine_layout/field_mapping
prompts was being parsed as Python .format() placeholder, causing KeyError
on every image-based initial_generation request. Escaped with double braces
so .format() outputs literal {field_1} for the LLM.
 2026-05-22 08:12:56 +08:00
panda 43a0542a11 feat: layered precise generation for A4 report images 
3-phase pipeline to solve LLM prompt overflow from too many OCR elements:
Phase 1 (generate_skeleton): compressed layout schema → skeleton JRXML
Phase 2 (refine_layout): sampled coordinates → pixel-level position tuning
Phase 3 (map_fields): OCR field names → replace $F{field_N} placeholders

Only triggered when layout_schema.total_rows > 0 on initial_generation intent.
Text requests and all other intents are unaffected (zero behavior change).
 2026-05-21 08:34:32 +08:00