# Technical Document Extraction: Heatmap Analysis
## 1. Labels and Axis Titles
- **Main Title**: "All Lengths"
- **Y-Axis (Vertical)**:
- Label: "Type"
- Categories: 1, 2, 3, 4, 5, 6, 7 (integer values)
- **X-Axis (Horizontal)**:
- Label: "Length"
- Categories: 0, 1, 2, ..., 19 (integer values)
## 2. Heatmap Structure
The heatmap uses **blue** to indicate presence and **white** to indicate absence of data points. Each row corresponds to a "Type" (1–7), and each column corresponds to a "Length" (0–19). Below is the categorical breakdown:
### Type 1
- **Blue**: Lengths 0–9
- **White**: Lengths 10–19
### Type 2
- **White**: Length 0
- **Blue**: Lengths 1–11
- **White**: Lengths 12–19
### Type 3
- **Blue**: All lengths (0–19)
### Type 4
- **White**: Lengths 0–3
- **Blue**: Lengths 4–11
- **White**: Lengths 12–19
### Type 5
- **White**: Lengths 0–6
- **Blue**: Lengths 7–11
- **White**: Lengths 12–19
### Type 6
- **Blue**: Lengths 0–18
- **White**: Length 19
### Type 7
- **Blue**: Lengths 0–13
- **White**: Lengths 14–19
## 3. Key Trends
1. **Type 3** exhibits the longest continuous blue segment (all lengths).
2. **Type 5** has the shortest initial blue segment (starts at Length 7).
3. **Type 6** has the longest blue segment ending at Length 18.
4. **Type 2** and **Type 4** both transition to white at Length 12, but Type 2 starts with a white cell at Length 0.
5. **Type 7** shows a mid-transition at Length 14, while **Type 1** transitions earlier at Length 10.
## 4. Spatial Grounding and Verification
- **Legend**: No explicit legend present. Color coding inferred as:
- **Blue**: Data present
- **White**: Data absent
- **Trend Verification**:
- Type 3: Uniform blue (all lengths) → Confirmed.
- Type 5: Blue starts at Length 7 → Confirmed.
- Type 6: Blue ends at Length 18 → Confirmed.
- Type 7: Blue ends at Length 13 → Confirmed.
## 5. Component Isolation
- **Header**: "All Lengths" title.
- **Main Chart**: 7x20 grid with blue/white cells.
- **Footer**: No additional components.
## 6. Data Table Reconstruction
| Type | Length Range (Blue) | Length Range (White) |
|------|---------------------------|---------------------------|
| 1 | 0–9 | 10–19 |
| 2 | 1–11 | 0, 12–19 |
| 3 | 0–19 | None |
| 4 | 4–11 | 0–3, 12–19 |
| 5 | 7–11 | 0–6, 12–19 |
| 6 | 0–18 | 19 |
| 7 | 0–13 | 14–19 |
## 7. Final Notes
- No embedded text or non-English content detected.
- All data points align with the described trends.
- No missing labels or axis markers.
