decimate_mesh#

Autogenerated DPF operator classes.

class ansys.dpf.core.operators.mesh.decimate_mesh.decimate_mesh(mesh=None, preservation_ratio=None, aggressiveness=None, config=None, server=None)#

Decimate a meshed region

Parameters:

  • mesh (MeshedRegion) – Mesh to decimate

  • preservation_ratio (float, optional) – Target ratio of elements to preserve, the actual number of elements preserved might differ. default value is 0.5.

  • aggressiveness (int, optional) – Quality measure for the resulting decimated mesh. lower aggresiveness will provide a higher quality mesh with the tradeoff of higher execution time. value range is 0 to 150, default is 0.

Returns:

mesh – Decimated mesh with triangle elements

Return type:

MeshedRegion

Examples

>>> from ansys.dpf import core as dpf

>>> # Instantiate operator
>>> op = dpf.operators.mesh.decimate_mesh()

>>> # Make input connections
>>> my_mesh = dpf.MeshedRegion()
>>> op.inputs.mesh.connect(my_mesh)
>>> my_preservation_ratio = float()
>>> op.inputs.preservation_ratio.connect(my_preservation_ratio)
>>> my_aggressiveness = int()
>>> op.inputs.aggressiveness.connect(my_aggressiveness)

>>> # Instantiate operator and connect inputs in one line
>>> op = dpf.operators.mesh.decimate_mesh(
...     mesh=my_mesh,
...     preservation_ratio=my_preservation_ratio,
...     aggressiveness=my_aggressiveness,
... )

>>> # Get output data
>>> result_mesh = op.outputs.mesh()
static default_config(server=None)#

Returns the default config of the operator.

This config can then be changed to the user needs and be used to instantiate the operator. The Configuration allows to customize how the operation will be processed by the operator.

Parameters:

server (server.DPFServer, optional) – Server with channel connected to the remote or local instance. When None, attempts to use the global server.

property inputs#

Enables to connect inputs to the operator

Returns:

inputs

Return type:

InputsDecimateMesh

property outputs#

Enables to get outputs of the operator by evaluating it

Returns:

outputs

Return type:

OutputsDecimateMesh

property config#

Copy of the operator’s current configuration.

You can modify the copy of the configuration and then use operator.config = new_config or instantiate an operator with the new configuration as a parameter.

For information on an operator’s options, see the documentation for that operator.

Returns:

Copy of the operator’s current configuration.

Return type:

ansys.dpf.core.config.Config

Examples

Modify the copy of an operator’s configuration and set it as current config of the operator.

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.math.add()
>>> config_add = op.config
>>> config_add.set_work_by_index_option(True)
>>> op.config = config_add
connect(pin, inpt, pin_out=0)#

Connect an input on the operator using a pin number.

Parameters:

  • pin (int) – Number of the input pin.

  • inpt (str, int, double, bool, list[int], list[float], Field, FieldsContainer, Scoping,) –

  • ScopingsContainer – Operator, os.PathLike Object to connect to.

  • MeshedRegion – Operator, os.PathLike Object to connect to.

  • MeshesContainer – Operator, os.PathLike Object to connect to.

  • DataSources – Operator, os.PathLike Object to connect to.

  • CyclicSupport – Operator, os.PathLike Object to connect to.

  • dict – Operator, os.PathLike Object to connect to.

  • Outputs – Operator, os.PathLike Object to connect to.

  • pin_out (int, optional) – If the input is an operator, the output pin of the input operator. The default is 0.

Examples

Compute the minimum of displacement by chaining the "U" and "min_max_fc" operators.

>>> from ansys.dpf import core as dpf
>>> from ansys.dpf.core import examples
>>> data_src = dpf.DataSources(examples.find_multishells_rst())
>>> disp_op = dpf.operators.result.displacement()
>>> disp_op.inputs.data_sources(data_src)
>>> max_fc_op = dpf.operators.min_max.min_max_fc()
>>> max_fc_op.inputs.connect(disp_op.outputs)
>>> max_field = max_fc_op.outputs.field_max()
>>> max_field.data
DPFArray([[0.59428386, 0.00201751, 0.0006032 ]]...
connect_operator_as_input(pin, op)#

Connects an operator as an input on a pin. :type pin: :param pin: Number of the output pin. The default is 0. :type pin: int :type op: :param op: Requested type of the output. The default is None. :type op: ansys.dpf.core.dpf_operator.Operator

eval(pin=None)#

Evaluate this operator.

Parameters:

pin (int) – Number of the output pin. The default is None.

Returns:

output – Returns the first output of the operator by default and the output of a given pin when specified. Or, it only evaluates the operator without output.

Return type:

FieldsContainer, Field, MeshedRegion, Scoping

Examples

Use the eval method.

>>> from ansys.dpf import core as dpf
>>> import ansys.dpf.core.operators.math as math
>>> from ansys.dpf.core import examples
>>> data_src = dpf.DataSources(examples.find_multishells_rst())
>>> disp_op = dpf.operators.result.displacement()
>>> disp_op.inputs.data_sources(data_src)
>>> normfc = math.norm_fc(disp_op).eval()
get_output(pin=0, output_type=None)#

Retrieve the output of the operator on the pin number.

To activate the progress bar for server version higher or equal to 3.0, use my_op.progress_bar=True

Parameters:

  • pin (int, optional) – Number of the output pin. The default is 0.

  • output_type (ansys.dpf.core.common.types, type, optional) – Requested type of the output. The default is None.

Returns:

Output of the operator.

Return type:

type

static operator_specification(op_name, server=None)#

Documents an Operator with its description (what the Operator does), its inputs and outputs and some properties

property progress_bar: bool#

With this property, the user can choose to print a progress bar when the operator’s output is requested, default is False

run()#

Evaluate this operator.

property specification#

Returns the Specification (or documentation) of this Operator

Return type:

Specification

class ansys.dpf.core.operators.mesh.decimate_mesh.InputsDecimateMesh(op: ansys.dpf.core.dpf_operator.Operator)#

Intermediate class used to connect user inputs to decimate_mesh operator.

Examples

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.mesh.decimate_mesh()
>>> my_mesh = dpf.MeshedRegion()
>>> op.inputs.mesh.connect(my_mesh)
>>> my_preservation_ratio = float()
>>> op.inputs.preservation_ratio.connect(my_preservation_ratio)
>>> my_aggressiveness = int()
>>> op.inputs.aggressiveness.connect(my_aggressiveness)
property mesh#

Allows to connect mesh input to the operator.

Mesh to decimate

Parameters:

my_mesh (MeshedRegion) –

Examples

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.mesh.decimate_mesh()
>>> op.inputs.mesh.connect(my_mesh)
>>> # or
>>> op.inputs.mesh(my_mesh)
property preservation_ratio#

Allows to connect preservation_ratio input to the operator.

Target ratio of elements to preserve, the actual number of elements preserved might differ. default value is 0.5.

Parameters:

my_preservation_ratio (float) –

Examples

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.mesh.decimate_mesh()
>>> op.inputs.preservation_ratio.connect(my_preservation_ratio)
>>> # or
>>> op.inputs.preservation_ratio(my_preservation_ratio)
property aggressiveness#

Allows to connect aggressiveness input to the operator.

Quality measure for the resulting decimated mesh. lower aggresiveness will provide a higher quality mesh with the tradeoff of higher execution time. value range is 0 to 150, default is 0.

Parameters:

my_aggressiveness (int) –

Examples

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.mesh.decimate_mesh()
>>> op.inputs.aggressiveness.connect(my_aggressiveness)
>>> # or
>>> op.inputs.aggressiveness(my_aggressiveness)
connect(inpt)#

Connect any input (an entity or an operator output) to any input pin of this operator. Searches for the input type corresponding to the output.

Parameters:

  • inpt (str, int, double, bool, list[int], list[float], Field, FieldsContainer, Scoping,) –

  • ScopingsContainer (E501) – Input of the operator.

  • MeshedRegion (E501) – Input of the operator.

  • MeshesContainer (E501) – Input of the operator.

  • DataSources (E501) – Input of the operator.

  • CyclicSupport (E501) – Input of the operator.

  • Outputs (E501) – Input of the operator.

  • noqa (os.PathLike #) – Input of the operator.

class ansys.dpf.core.operators.mesh.decimate_mesh.OutputsDecimateMesh(op: ansys.dpf.core.dpf_operator.Operator)#

Intermediate class used to get outputs from decimate_mesh operator.

Examples

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.mesh.decimate_mesh()
>>> # Connect inputs : op.inputs. ...
>>> result_mesh = op.outputs.mesh()
property mesh#

Allows to get mesh output of the operator

Returns:

my_mesh

Return type:

MeshedRegion

Examples

>>> from ansys.dpf import core as dpf
>>> op = dpf.operators.mesh.decimate_mesh()
>>> # Connect inputs : op.inputs. ...
>>> result_mesh = op.outputs.mesh()
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