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agentscope-ai/PawBench119Updated Aug 3, 2026
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mesh-analysis
Analyzes 3D mesh files (STL) to calculate geometric properties (volume, components) and extract attribute data. Use this skill to process noisy 3D scan data and filter debris.
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See how to installFiles included (2)
- SKILL.md2.2 KB
- scripts/mesh_tool.py4.6 KB
SKILL.md (original)
Review the instructions the agent will receive before you install.
Mesh Analysis
This skill provides the MeshAnalyzer tool for robustly processing 3D STL files. It handles Binary STL parsing and connected component analysis.
When to Use
Use this skill for:
- Geometric Analysis: Calculating volume of complex or noisy meshes.
- Noise Filtering: Isolating the largest connected component from "dirty" scan data.
- Attribute Extraction: Extracting metadata (e.g. material IDs) stored in the STL file attribute bytes.
Usage
The tool is provided as a Python module in the scripts/ directory.
Basic Workflow
import sys
# Add skill path to sys.path
sys.path.append('/root/.claude/skills/mesh-analysis/scripts')
from mesh_tool import MeshAnalyzer
# Initialize with file path
analyzer = MeshAnalyzer('/path/to/your/file.stl')
# Analyze specific components
# Automatically identifies the largest component (main part)
report = analyzer.analyze_largest_component()
volume = report['main_part_volume']
mat_id = report['main_part_material_id']
print(f"Volume: {volume}")
print(f"Material ID: {mat_id}")
Calculating Mass
The tool provides the Volume and Material ID. To calculate Mass:
- Read the Material ID from the analysis report.
- Consult your provided material reference data (e.g. density tables) to find the density.
- Calculate:
Mass = Volume * Density.
Critical Note on Units:
- The Volume returned is in the same units as the STL file's coordinates (cubed).
- Do not assume millimeters or inches. Check your task instructions for the coordinate system units (e.g., if coordinates are in cm, volume is in cm³).
- If your density table uses the same unit (e.g., g/cm³ and cm³), multiply directly. No unit conversion is needed.
Critical Notes
- Binary Support: The tool automatically handles Binary STL files.
- Attribute extraction: The tool extracts the 2-byte attribute stored in the binary STL format (often used for color or material ID).
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