Generates synthetic tasks where multiple line segments are displayed. The goal is to locate and mark all intersection points where line segments cross each other with red circles.
Each sample pairs a task (first frame + prompt describing what needs to happen) with its ground truth solution (final frame showing the result + video demonstrating how to achieve it). This structure enables both model evaluation and training.
| Property | Value |
|---|---|
| Task ID | G-199 |
| Task | Locate Line Intersections |
| Category | Perception |
| Resolution | 1024×1024 px |
| FPS | 10 fps |
| Duration | ~1.4 seconds |
| Output | PNG images + MP4 video |
# Clone the repository
git clone https://github.com/Jiaqi-Gong/Gong_VBVR_Data.git
cd Gong_VBVR_Data/G-199_locate_line_intersections_data-generator
# Install dependencies
pip install -r requirements.txt# Generate 100 samples
python examples/generate.py --num-samples 100
# Generate with specific seed
python examples/generate.py --num-samples 100 --seed 42
# Generate without videos
python examples/generate.py --num-samples 100 --no-videos
# Custom output directory
python examples/generate.py --num-samples 100 --output data/my_output| Argument | Type | Description | Default |
|---|---|---|---|
--num-samples |
int | Number of samples to generate | 100 |
--seed |
int | Random seed for reproducibility | Random |
--output |
str | Output directory | data/questions |
--no-videos |
flag | Skip video generation | False |
Circle all intersection points of the line segments with red circles.
 |
 |
 |
| Initial Frame Line segments displayed |
Animation Red circles drawn at intersections |
Final Frame All intersection points marked |
Identify all points where line segments intersect each other and mark each intersection point with a red circle.
- Line Segments: Multiple line segments arranged in the scene
- Intersections: Points where two or more line segments cross
- Marking Method: Red circles placed at each intersection point
- Complete Identification: All intersection points must be found and marked
- Endpoint Exclusion: Only mark where segments cross, not their endpoints
- Multiple Intersections: May have zero, one, or many intersection points
- Intersection detection: Tests ability to identify where lines cross
- Complete enumeration: All intersection points must be identified
- Precise location: Circles placed exactly at intersection coordinates
- Spatial reasoning: Requires analyzing line segment relationships
- Concise task: Short, direct prompt with clear objective
- Quick animation: Brief video showing each intersection being marked
data/questions/locate_line_intersections_task/locate_line_intersections_00000000/
├── first_frame.png # Initial state (line segments)
├── final_frame.png # Goal state (intersections circled)
├── prompt.txt # Task instructions
├── ground_truth.mp4 # Solution video (10 fps)
└── question_metadata.json # Task metadata
File specifications: Images are 1024×1024 PNG. Videos are MP4 at 10 fps, approximately 1.4 seconds long.
geometry line-intersections point-location spatial-reasoning intersection-detection