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0021397: EDF SMESH: a quadrangle face mesh can't be projected to a cylinder

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eap 2012-12-28 16:24:50 +00:00
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doc/salome/gui/SMESH/input/projection_algos.doc
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@ -16,44 +16,51 @@ The following dialog box will appear:
\image html projection_1d.png \image html projection_1d.png
In this menu you can define the \b Name of the algorithm, the already In this dialog you can define
meshed source \b Edge and the \b Mesh (It can be omitted only when <ul>
projecting a submesh on another one from the same global Mesh). <li> the \b Name of the algorithm,</li>
It could also be necessary to define the orientation of edges, <li> the already meshed <b> Source Edge</b> and </li>
which is done by indicating the <b>Source Vertex</b> being the first point <li> the <b>Source Mesh </b> (It can be omitted only when projecting
of the Source Edge and the <b>Target Vertex</b> being the first point of a sub-mesh on another one of the same Mesh).</li>
the created \b Edge. <li> It could also be necessary to define the orientation of edges,
which is done by indicating the <b>Source Vertex</b> being the
first point of the <b>Source Edge </b>and the <b>Target Vertex</b> being
the first point of the edge being meshed.</li>
</ul>
<br> <br>
For a group of edges, <b>Source</b> and <b>Target</b> vertices should be For a group of edges, <b>Source</b> and <b>Target</b> vertices should be
shared by one edge of the group. If <b>Source</b> and <b>Target</b> shared by only one edge of the group. If <b>Source</b> and <b>Target</b>
vertices are specified, the elements of the group must be adjacent. vertices are specified, the edges in the group must be connected.
The source and target groups must contain equal number of edges The source and target groups must contain equal number of edges
and they must form topologically equal structures. and they must form topologically equal structures.
\n <b>Projection 2D</b> algorithm allows to define the mesh of a face \n <b>Projection 2D</b> algorithm allows to define the mesh of a face
(or group of faces) by the (or group of faces) by the projection of another already meshed face
projection of another already meshed face (or group of faces). This (or group of faces). This algorithm works only if all edges of the
algorithm works only target face have been discretized into the same number of
if all edges of the target face have been meshed as 1D Projections of segments as corresponding edges of the source face.
the edges of the source face.
To apply this algorithm select the face to be meshed (indicated in the To apply this algorithm select the face to be meshed (indicated in the
field \b Geometry of <b>Create mesh</b> dialog box), <b>Projection field \b Geometry of <b>Create mesh</b> dialog box), <b>Projection
2D</b> in the list 2D</b> in the list of 2D algorithms and click the <em> "Add
of 2D algorithms and click the <em>"Add Hypothesis"</em> button. The Hypothesis"</em> button. The following dialog box will appear:
following dialog box will appear:
\image html projection_2d.png \image html projection_2d.png
In this menu you can define the \b Name of the algorithm, the already In this dialog you can define
meshed source \b Face and the \b Mesh (It can be omitted only when <ul>
projecting a submesh on another one from the same global Mesh). <li> the \b Name of the algorithm, </li>
It could also be necessary to define the orientation of mesh on the <li> the already meshed <b> Source Face </b> and </li>
face, which is done by indicating two <b>Source Vertices</b>, which <li> the <b> Source Mesh </b> (It can be omitted only when
belong to the same edge of the source face, and two <b>Target projecting a submesh on another one of the same Mesh). </li>
Vertices</b>, which belong to the same edge of the created \b Face. <li> It could also be necessary to define the orientation of mesh on
For groups of face, they must contain equal number of faces the face, which is done by indicating two <b>Source Vertices</b>,
and they must form topologically equal structures. which belong to the same edge of the <b>Source Face</b>, and
two <b>Target Vertices</b>, which belong to the same edge of the
face being meshed.</li>
</ul>
For groups of face, the groups must contain equal number of faces and
they must form topologically equal structures.
\n <b>Projection 1D-2D</b> algorithm differs from <b>Projection 2D</b> \n <b>Projection 1D-2D</b> algorithm differs from <b>Projection 2D</b>
algorithm in one aspect: it generates mesh segments on edges of algorithm in one aspect: it generates mesh segments on edges of