compas_3dec
compas_3dec is a COMPAS integration for preparing, running, and
post-processing rigid-block analyses with 3DEC by Itasca Consulting Group.
Installation
pip install compas_3dec
Install COMPAS DEM interoperability support with:
pip install "compas_3dec[dem]"
For local development, clone the repository and install the development and documentation dependencies with:
pip install "compas_dem @ git+https://github.com/BlockResearchGroup/compas_dem.git@main"
pip install -e ".[dev,docs]"
The 3DEC executable is proprietary and must be installed separately.
Usage
from compas_3dec import ThreeDECAnalysisBuilder, ThreeDECSolver
builder = ThreeDECAnalysisBuilder.from_meshes(meshes, name="Arch gravity")
builder.set_material(density=2500, young_modulus=25e9, poisson_ratio=0.2)
builder.set_supports([0, 9])
builder.set_contact_properties()
builder.add_gravity()
analysis = builder.build()
results = ThreeDECSolver(workspace=r"C:\path\to\runs").solve(analysis)
Inputs can also be translated from a compas_dem problem with
ThreeDECAnalysisBuilder.from_dem_problem.
Native results can be processed selectively or converted to the limited
compas_dem.Results contract:
contacts = results.postprocess_contacts(analysis)
failure = results.postprocess_failure(analysis)
dem_results = results.to_compas_dem_results(analysis)
Development
pytest
ruff check .
ruff format .
mkdocs serve
Automated tests live in tests/. Executable analysis and visualisation
scripts live in scripts/. Generated solver runs should be stored outside the
repository or in an ignored runs/ directory.
1 maintainer
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