Model.adaptive_wrapper_build

Model.adaptive_wrapper_build()

Builds the skeletal octree structure for the adaptive wrap mesher. It performs proximity checks, refines the octree based on various input parameters, and also identifies gaps holes and patches them.

This function must be called between Model.adaptive_wrapper_init() and Model.adaptive_wrapper_end().

It uses input defined by Model.adaptive_wrapper_set_features(), Model.adaptive_wrapper_set_params() and Model.adaptive_wrapper_proximity_params().

Example

Usage of the adaptive_wrapper_build functions

import hm
import hm.entities as ent

model = hm.Model()

# Initialization of wrapper mesh with base mesh
elems = hm.Collection(model, ent.Element)
model.adaptive_wrapper_init(collection=elems, clean_intersection=1, wrap_type=0)

# Define features
model.adaptive_wrapper_set_features(
    feature_type=1,
    collection=elems,
    feature_angle=30.0,
    clean_features=1,
    clean_tol=1.0,
)

# Set various meshing and refinement parameters
model.adaptive_wrapper_set_params(
    max_elem_size=10.0,
    min_elem_size=0.1,
    string_array=[
        "LeakCheckNodes: 20 24 19",
        "GapPatchTolerance: 3.0",
        "HolePatchTolerance: 10.0",
        "RefineByBoxCompIds: 4 5 6",
        "RefineByNodeCurvature: 1",
        "RefineByFeatureProximity: 0",
        "RefineByAllElemSize: 1",
    ],
)

# Proximity options
model.adaptive_wrapper_proximity_params(
    self_proximity_for_all=1,
    prox_lower_bound=0.2,
    string_array=[
        "WithinGroup: 0.5 1 3 10 12 13",
        "WithinGroup: 1.5 3 9 20",
        "AcrossGroup: 0.5 3 10 12 13 4 9 8 7 19",
    ],
)

# Build skeletal octree structure
model.adaptive_wrapper_build()

# Generate mesh
model.adaptive_wrapper_mesh(mesh_type=0, DoRemesh=1, RemeshGrowthRate=1.2)

# End of wrapper mesh
model.adaptive_wrapper_end()