mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-11-11 16:19:16 +05:00
87 lines
3.9 KiB
ReStructuredText
87 lines
3.9 KiB
ReStructuredText
|
|
.. _reorient_faces_page:
|
|
|
|
************
|
|
Orient faces
|
|
************
|
|
|
|
This operation allows fixing the orientation of a set of faces in the following ways:
|
|
|
|
* The required orientation of a set of neighboring faces can be defined by a vector giving the direction of a normal to a certain face. Since the direction of face normals in the set can be even opposite, it is necessary to specify a *control* face, the normal to which will be compared with the vector. This face can be either:
|
|
* found by proximity to a given point, or
|
|
* specified explicitly.
|
|
* The required orientation is given by faces of specified reference groups or/and sub-meshes. The reference groups can be omitted, then orientation of an arbitrary selected face to orient defines common orientation.
|
|
* Alternatively, the faces can be oriented relatively to the adjacent volumes.
|
|
|
|
The orientation of a face is changed by reverting the order of its nodes.
|
|
|
|
*To set orientation of faces:*
|
|
|
|
.. |imgfac| image:: ../images/reorient_faces_face.png
|
|
.. |imgpnt| image:: ../images/reorient_faces_point.png
|
|
.. |imggrp| image:: ../images/reorient_faces_ref_groups.png
|
|
.. |imgvol| image:: ../images/reorient_faces_volume.png
|
|
|
|
#. In the **Modification** menu select **Reorient faces** item or click *"Reorient faces"* button |imgfac| in the toolbar.
|
|
#. In the "Reorient faces" dialog box
|
|
|
|
* Select a way to define orientation:
|
|
|
|
* |imgpnt| - by specifying a point and a vector
|
|
* |imgfac| - by specifying a face and a vector
|
|
* |imggrp| - by specifying reference face groups
|
|
* |imgvol| - by specifying reference volume groups
|
|
|
|
* Select the **Object(s)** (mesh, groups and/or sub-meshes) containing faces to reorient, in the Object Browser or in the 3D Viewer.
|
|
* To reorient by direction of the face normal:
|
|
|
|
* Specify the coordinates of the **Point** by which the control face will be found. You can specify the **Point** by picking a node in the 3D Viewer or selecting a vertex in the Object Browser.
|
|
* Set up the **Direction** vector to be compared with the normal of the control face. There are following options:
|
|
|
|
* adjust vector components directly;
|
|
* select a vertex in the Object Browser or a node in the 3D Viewer; their coordinates will define vector components;
|
|
* pick two nodes (holding Shift button), the **Direction** vector will go from the first to the second node.
|
|
|
|
.. image:: ../images/reorient_2d_point.png
|
|
:align: center
|
|
|
|
.. centered::
|
|
The orientation of adjacent faces is chosen according to a vector. The control face is found by point.
|
|
|
|
* In the second mode it is possible to pick the **Face** by mouse in the 3D Viewer or directly enter the **Face** ID in the corresponding field.
|
|
|
|
.. image:: ../images/reorient_2d_face.png
|
|
:align: center
|
|
|
|
.. centered::
|
|
The orientation of adjacent faces is chosen according to a vector. The control face is explicitly given.
|
|
|
|
|
|
* In the third mode, the faces can be reoriented equally to reference faces:
|
|
|
|
* If necessary, select 2D **Reference objects** (groups or/and sub-meshes) containing the reference faces, in the Object Browser or in the 3D Viewer. This field can be left empty, then orientation of an arbitrary face will be used as a reference.
|
|
|
|
|
|
.. image:: ../images/reorient_2d_refgroup.png
|
|
:align: center
|
|
|
|
.. centered::
|
|
The orientation of faces is given by reference face groups and/or sub-meshes.
|
|
|
|
* In the fourth mode, the faces can be reoriented according to volumes:
|
|
|
|
* Select an object (mesh, sub-mesh or group) containing reference **Volumes**, in the Object Browser or in the 3D Viewer.
|
|
* Specify whether face normals should point outside or inside the reference volumes using **Face normal outside volume** check-box.
|
|
|
|
.. image:: ../images/reorient_2d_volume.png
|
|
:align: center
|
|
|
|
.. centered::
|
|
The orientation of faces is chosen relatively to adjacent volumes.
|
|
|
|
#. Click the **Apply** or **Apply and Close** button to confirm the operation.
|
|
|
|
**See Also** a sample TUI Script of a :ref:`tui_reorient_faces` operation.
|
|
|
|
|