smesh/doc/salome/gui/SMESH/input/radial_prism_algo.rst

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.. _radial_prism_algo_page:
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************
Radial Prism
************
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This algorithm applies to the meshing of a hollow 3D shape,
i.e. such shape should be composed of two meshed shells: an outer
shell and an internal shell without intersection with the outer
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shell. One of the shells should be a :ref:`2D Projection <projection_2D>` of the other
shell. The meshes of the shells can consist both of triangles and
quadrangles.
The Radial Prism algorithm would fill the space between the two shells
with prisms.
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.. image:: ../images/radial_prism_mesh.png
:align: center
.. centered::
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Cut-view of a hollow sphere meshed by Radial Prism algorithm
This algorithm also needs the information concerning the number and
distribution of mesh layers between the inner and the outer shapes.
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This information can be defined using either of two hypotheses:
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.. image:: ../images/number_of_layers.png
:align: center
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.. centered::
*"Number of layers"* hypothesis
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.. image:: ../images/distribution_of_layers.png
:align: center
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.. centered::
*"Distribution of layers"* hypothesis
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*Distribution of layers* hypothesis allows using most of
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:ref:`1D Hypotheses <a1d_meshing_hypo_page>` to define
the distribution of mesh layers.
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**See also** a sample :ref:`TUI script <tui_radial_prism>`.