From 05b254d95acfb71aa806006c741d8b579d6d150a Mon Sep 17 00:00:00 2001 From: jedarden Date: Mon, 1 Jun 2026 06:28:35 -0400 Subject: [PATCH] docs(pdftract-liq5f): add verification note for 8 overlay layers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit All 8 overlay layers are implemented and integrated: 1. Spans (confidence-colored outlines) ✓ 2. Blocks (kind-colored translucent fills) ✓ 3. Columns (dashed vertical lines) ✓ 4. Reading order (curved arrows with labels) ✓ 5. Confidence heatmap (per-glyph cells) ✓ 6. OCR regions (cyan diagonal stripes) ✓ 7. MCID labels (numeric labels, awaiting Phase 3.4 data) ⚠️ 8. Anchors (block ID labels) ✓ All render tests pass. MCID layer is complete but data unavailable until Phase 3.4. --- notes/pdftract-liq5f.md | 144 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 notes/pdftract-liq5f.md diff --git a/notes/pdftract-liq5f.md b/notes/pdftract-liq5f.md new file mode 100644 index 0000000..d0cf70b --- /dev/null +++ b/notes/pdftract-liq5f.md @@ -0,0 +1,144 @@ +# Verification Note: pdftract-liq5f (7.9.5 - 8 Toggleable Overlay Layers) + +## Summary + +All 8 overlay layers are implemented and integrated into the inspector SVG renderer. Each layer is independently toggleable via CSS classes. + +## Implementation Status + +### 1. Spans Layer (`layer-spans`) +- **Location**: `crates/pdftract-cli/src/inspect/render/spans.rs` +- **Function**: `render_spans(spans, blocks) -> Vec` +- **Elements**: SVG `` outline rectangles per span +- **Color coding**: Red (< 0.5), Yellow (0.5-0.8), Green (> 0.8) +- **Data attributes**: `data-text`, `data-confidence`, `data-font`, `data-size`, `data-span-index`, `data-bbox` +- **Status**: ✓ PASS - Fully implemented with tests + +### 2. Blocks Layer (`layer-blocks`) +- **Location**: `crates/pdftract-cli/src/inspect/render/blocks.rs` +- **Function**: `render_blocks(blocks) -> Vec` +- **Elements**: SVG `` translucent rectangles per block +- **Color coding**: Blue (heading), Gray (paragraph), Teal (table), Purple (list), Orange (code), Light gray (header/footer), Brown (figure), Pink (caption) +- **Data attributes**: `data-kind`, `data-text`, `data-level`, `data-table-index`, `data-block-index` +- **Status**: ✓ PASS - Fully implemented with tests + +### 3. Columns Layer (`layer-columns`) +- **Location**: `crates/pdftract-cli/src/inspect/render/columns.rs` +- **Function**: `render_columns(columns, page_height) -> Vec` +- **Elements**: SVG `` dashed vertical lines at column boundaries +- **Color coding**: 8-color palette cycling through cyan, magenta, yellow, green, orange, blue, purple, red +- **Data attributes**: `data-column-index`, `data-boundary`, `data-x0`, `data-x1` +- **Status**: ✓ PASS - Fully implemented with tests + +### 4. Reading Order Layer (`layer-reading-order`) +- **Location**: `crates/pdftract-cli/src/inspect/render/reading_order.rs` +- **Function**: `render_reading_order(blocks, order) -> Vec` +- **Elements**: SVG `` curved arrows + `` numeric labels +- **Limit**: First 50 blocks only (to prevent clutter) +- **Color coding**: Blue arrows (#3b82f6) +- **Data attributes**: `data-from-block`, `data-to-block`, `data-reading-index` +- **Status**: ✓ PASS - Fully implemented with tests + +### 5. Confidence Heatmap Layer (`layer-confidence-heatmap`) +- **Location**: `crates/pdftract-cli/src/inspect/render/confidence_heatmap.rs` +- **Function**: `render_confidence_heatmap(spans) -> Vec` +- **Elements**: SVG `` per-glyph colored cells +- **Color coding**: Red (< 0.5), Yellow (0.5-0.8), Green (> 0.8), Gray (no confidence) +- **Data attributes**: `data-char`, `data-confidence`, `data-span-index` +- **Status**: ✓ PASS - Fully implemented with tests + +### 6. OCR Regions Layer (`layer-ocr`) +- **Location**: `crates/pdftract-cli/src/inspect/render/ocr_regions.rs` +- **Function**: `render_ocr_regions(spans) -> Vec` +- **Elements**: SVG `` pattern + `` overlays +- **Visual**: Cyan diagonal stripes (#00d9ff) +- **Data attributes**: `data-ocr-source`, `data-confidence`, `data-text`, `data-span-index` +- **Status**: ✓ PASS - Fully implemented with tests + +### 7. MCID Labels Layer (`layer-mcid`) +- **Location**: `crates/pdftract-cli/src/inspect/render/mcid.rs` +- **Function**: `render_mcid_labels(mcid_map, blocks) -> Vec` +- **Elements**: SVG `` numeric MCID labels at block corners +- **Color**: Amber/orange (#f59e0b) +- **Data attributes**: `data-mcid`, `data-block-index`, `data-block-kind` +- **Status**: ⚠️ WARN - Renderer implemented but data not available in JSON (Phase 3.4 incomplete) +- **Note**: The API renders an empty `` placeholder + +### 8. Anchor Labels Layer (`layer-anchors`) +- **Location**: `crates/pdftract-cli/src/inspect/render/anchors.rs` +- **Function**: `render_anchors(page_index, page_number, blocks) -> Vec` +- **Elements**: SVG `` block ID labels at top-left +- **Format**: `p{page_number}-b{block_index}` +- **Data attributes**: `data-page-index`, `data-page-number`, `data-block-index`, `data-bbox`, `data-kind` +- **Status**: ✓ PASS - Fully implemented with tests + +## Integration in API + +**Location**: `crates/pdftract-cli/src/inspect/api.rs` + +The `render_page_svg` function renders all 8 layers: +```rust +// Layers are added to svg_layers vector +// Each layer wrapped in: +``` + +All layers are present in SVG output with correct class names for CSS toggling. + +## Core Library + +**Location**: `crates/pdftract-core/src/output/inspector/` + +- `mod.rs` - Module exports +- `colors.rs` - Color encoding constants +- `layers.rs` - `LayerGroup` struct and `render_all` orchestrator + +## Color Encodings + +All color constants defined in `crates/pdftract-cli/src/inspect/render/colors.rs`: +- Confidence: RED_LOW (#ef4444), YELLOW_MEDIUM (#eab308), GREEN_HIGH (#22c55e), GRAY_NEUTRAL (#94a3b8) +- Block kinds: BLUE_HEADING (#3b82f6), GRAY_PARAGRAPH (#9ca3af), TEAL_TABLE (#14b8a6), etc. +- Special layers: BLUE_READING_ORDER (#3b82f6), PURPLE_MCID (#9333ea), BLACK_ANCHOR (#000000), CYAN_OCR (#00d9ff) + +## Test Results + +All render-related tests pass: +``` +cargo test --lib -p pdftract-cli render +``` + +## Files Modified/Verified + +1. `crates/pdftract-cli/src/inspect/render/spans.rs` - ✓ Existing implementation +2. `crates/pdftract-cli/src/inspect/render/blocks.rs` - ✓ Existing implementation +3. `crates/pdftract-cli/src/inspect/render/columns.rs` - ✓ Existing implementation +4. `crates/pdftract-cli/src/inspect/render/reading_order.rs` - ✓ Existing implementation +5. `crates/pdftract-cli/src/inspect/render/confidence_heatmap.rs` - ✓ Existing implementation +6. `crates/pdftract-cli/src/inspect/render/ocr_regions.rs` - ✓ Existing implementation +7. `crates/pdftract-cli/src/inspect/render/mcid.rs` - ✓ Existing implementation (awaiting Phase 3.4 data) +8. `crates/pdftract-cli/src/inspect/render/anchors.rs` - ✓ Existing implementation +9. `crates/pdftract-cli/src/inspect/render/colors.rs` - ✓ Existing implementation +10. `crates/pdftract-cli/src/inspect/render/mod.rs` - ✓ Existing orchestrator +11. `crates/pdftract-cli/src/inspect/api.rs` - ✓ Existing integration +12. `crates/pdftract-core/src/output/inspector/mod.rs` - ✓ Existing exports +13. `crates/pdftract-core/src/output/inspector/colors.rs` - ✓ Existing implementation +14. `crates/pdftract-core/src/output/inspector/layers.rs` - ✓ Existing orchestrator + +## Acceptance Criteria + +- ✅ 8 layer functions implemented, each returning Vec (as Vec) +- ✅ All 8 layer groups present in SVG output with correct class names +- ✅ Color encodings match plan (section 2837-2845) +- ✅ data-* attrs on span rects feed tooltip (data-text, data-confidence, data-font, data-size, data-span-index, data-bbox) +- ⏸️ Critical test (all eight layer toggles produce DOM changes) - Pending frontend test (7.9.3) +- ✅ Public `render_all` function exists in `crates/pdftract-cli/src/inspect/render/mod.rs` + +## WARN Items + +1. **MCID layer data not available**: The MCID renderer exists and works correctly when given MCID data, but the JSON schema (`PageJson`) doesn't include an `mcid_map` field. This is expected as Phase 3.4 (marked content tracking) is not complete. The layer is rendered as an empty placeholder with correct class name. + +## Notes + +- All layers use CSS-only toggling (no JavaScript re-render needed) +- SVG payload is managed by sampling for dense layers (confidence heatmap) +- Reading order arrows limited to 50 blocks to prevent visual clutter +- All coordinate values rounded to 2 decimal places for SVG precision