Model.set_meshedgeparams#

Model.set_meshedgeparams(edge_index, elem_density, alg_type, bias_style, bias, min_size, max_size, chordal_dev, max_angle)#

Sets the edge-specific parameters for the automeshing module. It controls both standard and chordal mesh algorithm parameters.

Parameters:

  • edge_index (unsigned int) – The index of the edge in the particular surface under consideration. This is a 0-based index that operates on the edges in the order they are returned from Model.hm_getsurfaceedges(). One can query the edges for a surface using Model.hm_getsurfaceedges(), and then the index of each edge in the returned list (starting from 0) are the possible indices.

  • elem_density (unsigned int) – The density of elements to use along the given edge.

  • alg_type (int) –

    1 - Use size and biasing algorithm.

    2 - Use chordal deviation algorithm. When the function is being called for the first time for an edge, or when any of the chordal deviation parameters have been changed, the elem_density parameter is ignored and the edge element density is set to the value required by the chordal deviation parameters. Subsequent calls of the function with the same chordal deviation parameters reset the edge element density to the specified value with the same along edge density distribution. Calling the function with elem_density = 0 results in the resetting of the edge element density to the value required by the chordal deviation parameters.

  • bias_style (int) –

    The style of biasing to use. Valid values are:

    0 - linear

    1 - exponential

    2 - bell curve

  • bias (double) – The biasing value of the element length to use along the given edge.

  • min_size (double) – The minimum element size for the edge for chordal deviation meshing.

  • max_size (double) – The maximum element size for the edge for all alg_type values.

  • chordal_dev (double) – The maximum chordal deviation distance for the element for the edge.

  • max_angle (double) – The maximum turn angle value (in degrees) between adjacent element links for the edge for chordal deviation meshing.

Examples#

Create specific deviation based node seeding for edge with ID 29 with minimum element size 0.5 , maximum element size 15.0 , maximum chordal deviation 0.2 , and maximum element links turn angle 25 degrees with the element density required by the chordal deviation parameters#
import hm
import hm.entities as ent

model = hm.Model()

# Automeshing for edge with ID 29
model.set_meshedgeparams(
    edge_index=29,
    elem_density=0,
    alg_type=0,
    bias_style=0,
    bias=0.0,
    min_size=0.5,
    max_size=15.0,
    chordal_dev=0.2,
    max_angle=25.0,
)
Same example as above, but with element density 4 (requiring that the function is called twice)#
import hm
import hm.entities as ent

model = hm.Model()

model.set_meshedgeparams(
    edge_index=29,
    elem_density=4,
    alg_type=0,
    bias_style=0,
    bias=0.0,
    min_size=0.5,
    max_size=15.0,
    chordal_dev=0.2,
    max_angle=25.0,
)

model.set_meshedgeparams(
    edge_index=29,
    elem_density=4,
    alg_type=0,
    bias_style=0,
    bias=0.0,
    min_size=0.5,
    max_size=15.0,
    chordal_dev=0.2,
    max_angle=25.0,
)