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 # create\_tube\_selection\_rule

 Last update: 16.07.2025 

<a id="compolyx.Model.create_tube_selection_rule"></a>

#### Model.create\_tube\_selection\_rule(name, id=None, outer\_radius=1.0, inner\_radius=0.0, include\_rule\_type=True, edge\_set=None, extend\_endings=False, symmetrical\_extension=True, head=(0.0, 0.0, 0.0), head\_extension=0.0, tail\_extension=0.0)

Create a new tube selection rule.

- **Parameters:**
    - name: Name of the rule.
    - outer\_radius: The outer radius of the tube.
    - inner\_radius: The inner radius of the tube.
    - include\_rule\_type: Include or exclude area in rule.
    - edge\_set: Edge set for the rule.
    - extend\_endings: Whether to extend the endings of the tube.
    - symmetrical\_extension: If enabled, then the length of the extensions will be equal on both sides.
    - head: The free end which is closer to this point becomes the head of the tube. It is only necessary if symmetrical\_extension is disabled.
    - head\_extension: Defines the length of the extension at the head of the tube. If symmetrical\_extension is enabled, it defines both sides.
    - tail\_extension: Defines the length of the extension at the tail of the tube if symmetrical\_extension is disabled.
- **Returns:**The created rule.