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 # result:pretension

 Last update: 31.07.2026 

**Version: 0.0.0**

## Description

Reads the pretension adjustment and tension force. Rotation is not allowed for these results.

## Inputs

This table lists the input pins for this operator. Input pins define the data that the operator requires to perform its operation. Some inputs are required, while others are optional and provide additional configuration. Each parameter is detailed in the sections that follow the table.

Pin numberNameStatusExpected type(s)0[time\_scoping](#input_0)[`scopings_container`](../../core-concepts/dpf-types.md#scopings-container), [`scoping`](../../core-concepts/dpf-types.md#scoping)**1**[mesh\_scoping](#input_1)[`scopings_container`](../../core-concepts/dpf-types.md#scopings-container), [`scoping`](../../core-concepts/dpf-types.md#scoping)**2**[fields\_container](#input_2)[`fields_container`](../../core-concepts/dpf-types.md#fields-container)**3**[streams\_container](#input_3)Required[`streams_container`](../../core-concepts/dpf-types.md#streams-container), `stream`**4**[data\_sources](#input_4)Required[`data_sources`](../../core-concepts/dpf-types.md#data-sources)**7**[mesh](#input_7)[`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region), [`meshes_container`](../../core-concepts/dpf-types.md#meshes-container)**14**[read\_cyclic](#input_14)`enum dataProcessing::ECyclicReading`, [`int32`](../../core-concepts/dpf-types.md#standard-types)**15**[expanded\_meshed\_region](#input_15)[`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region), [`meshes_container`](../../core-concepts/dpf-types.md#meshes-container)**18**[sectors\_to\_expand](#input_18)[`vector<int32>`](../../core-concepts/dpf-types.md#standard-types), [`scoping`](../../core-concepts/dpf-types.md#scoping), [`scopings_container`](../../core-concepts/dpf-types.md#scopings-container)**19**[phi](#input_19)[`double`](../../core-concepts/dpf-types.md#standard-types)<a id="input_0"></a>

### time\_scoping (Pin 0)

- **Required:** No
- **Expected type(s):** [`scopings_container`](../../core-concepts/dpf-types.md#scopings-container), [`scoping`](../../core-concepts/dpf-types.md#scoping)

<a id="input_1"></a>

### mesh\_scoping (Pin 1)

- **Required:** No
- **Expected type(s):** [`scopings_container`](../../core-concepts/dpf-types.md#scopings-container), [`scoping`](../../core-concepts/dpf-types.md#scoping)

<a id="input_2"></a>

### fields\_container (Pin 2)

- **Required:** No
- **Expected type(s):** [`fields_container`](../../core-concepts/dpf-types.md#fields-container)

<a id="input_3"></a>

### streams\_container (Pin 3)

- **Required:** Yes
- **Expected type(s):** [`streams_container`](../../core-concepts/dpf-types.md#streams-container), `stream`

<a id="input_4"></a>

### data\_sources (Pin 4)

- **Required:** Yes
- **Expected type(s):** [`data_sources`](../../core-concepts/dpf-types.md#data-sources)

<a id="input_7"></a>

### mesh (Pin 7)

- **Required:** No
- **Expected type(s):** [`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region), [`meshes_container`](../../core-concepts/dpf-types.md#meshes-container)

mesh. If cylic expansion is to be done, mesh of the base sector

<a id="input_14"></a>

### read\_cyclic (Pin 14)

- **Required:** No
- **Expected type(s):** `enum dataProcessing::ECyclicReading`, [`int32`](../../core-concepts/dpf-types.md#standard-types)

if 0 cyclic symmetry is ignored, if 1 cyclic sector is read, if 2 cyclic expansion is done, if 3 cyclic expansion is done and stages are merged (default is 1)

<a id="input_15"></a>

### expanded\_meshed\_region (Pin 15)

- **Required:** No
- **Expected type(s):** [`abstract_meshed_region`](../../core-concepts/dpf-types.md#meshed-region), [`meshes_container`](../../core-concepts/dpf-types.md#meshes-container)

mesh expanded, use if cyclic expansion is to be done.

<a id="input_18"></a>

### sectors\_to\_expand (Pin 18)

- **Required:** No
- **Expected type(s):** [`vector<int32>`](../../core-concepts/dpf-types.md#standard-types), [`scoping`](../../core-concepts/dpf-types.md#scoping), [`scopings_container`](../../core-concepts/dpf-types.md#scopings-container)

sectors to expand (start at 0), for multistage: use scopings container with 'stage' label, use if cyclic expansion is to be done.

<a id="input_19"></a>

### phi (Pin 19)

- **Required:** No
- **Expected type(s):** [`double`](../../core-concepts/dpf-types.md#standard-types)

angle phi in degrees (default value 0.0), use if cyclic expansion is to be done.

## Outputs

This table lists the output pins for this operator. Output pins provide the results of the operator's computation and can be connected to inputs of other operators or retrieved for further processing. Each output is detailed in the sections that follow the table.

Pin numberNameExpected type(s)0[adjustment](#output_0)[`fields_container`](../../core-concepts/dpf-types.md#fields-container)**1**[tension\_force](#output_1)[`fields_container`](../../core-concepts/dpf-types.md#fields-container)<a id="output_0"></a>

### adjustment (Pin 0)

- **Expected type(s):** [`fields_container`](../../core-concepts/dpf-types.md#fields-container)

Adjustment

<a id="output_1"></a>

### tension\_force (Pin 1)

- **Expected type(s):** [`fields_container`](../../core-concepts/dpf-types.md#fields-container)

Tension Force

## Configurations

This operator supports [configuration options](../../core-concepts/operator-configurations.md) that modify its behavior.

### [mutex](../../core-concepts/operator-configurations.md#mutex)

- **Expected type(s):** [`bool`](../../core-concepts/dpf-types.md#standard-types)
- **Default value:** false

If this option is set to true, the shared memory is prevented from being simultaneously accessed by multiple threads.

## Scripting

This operator can be accessed through scripting interfaces using these identifiers.

**Category**: result

**Plugin**: mapdl

**Scripting name**: pretension

**Full name**: result.pretension

**Internal name**: mapdl::pretension

**License**: None

## Examples

These examples demonstrate how to use this operator in different programming environments. Each example shows how to instantiate the operator, connect the required inputs, and retrieve the output.

C++```cpp
#include "dpf_api.h"

ansys::dpf::Operator op("mapdl::pretension"); // operator instantiation
op.connect(0, my_time_scoping);
op.connect(1, my_mesh_scoping);
op.connect(2, my_fields_container);
op.connect(3, my_streams_container);
op.connect(4, my_data_sources);
op.connect(7, my_mesh);
op.connect(14, my_read_cyclic);
op.connect(15, my_expanded_meshed_region);
op.connect(18, my_sectors_to_expand);
op.connect(19, my_phi);
ansys::dpf::FieldsContainer my_adjustment = op.getOutput<ansys::dpf::FieldsContainer>(0);
ansys::dpf::FieldsContainer my_tension_force = op.getOutput<ansys::dpf::FieldsContainer>(1);

```

CPython```python
import ansys.dpf.core as dpf

op = dpf.operators.result.pretension() # operator instantiation
op.inputs.time_scoping.connect(my_time_scoping)
op.inputs.mesh_scoping.connect(my_mesh_scoping)
op.inputs.fields_container.connect(my_fields_container)
op.inputs.streams_container.connect(my_streams_container)
op.inputs.data_sources.connect(my_data_sources)
op.inputs.mesh.connect(my_mesh)
op.inputs.read_cyclic.connect(my_read_cyclic)
op.inputs.expanded_meshed_region.connect(my_expanded_meshed_region)
op.inputs.sectors_to_expand.connect(my_sectors_to_expand)
op.inputs.phi.connect(my_phi)
my_adjustment = op.outputs.adjustment()
my_tension_force = op.outputs.tension_force()

```

IPython```python
import mech_dpf
import Ans.DataProcessing as dpf

op = dpf.operators.result.pretension() # operator instantiation
op.inputs.time_scoping.Connect(my_time_scoping)
op.inputs.mesh_scoping.Connect(my_mesh_scoping)
op.inputs.fields_container.Connect(my_fields_container)
op.inputs.streams_container.Connect(my_streams_container)
op.inputs.data_sources.Connect(my_data_sources)
op.inputs.mesh.Connect(my_mesh)
op.inputs.read_cyclic.Connect(my_read_cyclic)
op.inputs.expanded_meshed_region.Connect(my_expanded_meshed_region)
op.inputs.sectors_to_expand.Connect(my_sectors_to_expand)
op.inputs.phi.Connect(my_phi)
my_adjustment = op.outputs.adjustment.GetData()
my_tension_force = op.outputs.tension_force.GetData()

```

  
## Changelog

- Version 0.0.0: Initial release.