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0021397: EDF SMESH: a quadrangle face mesh can't be projected to a cylinder
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@ -16,44 +16,51 @@ The following dialog box will appear:
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\image html projection_1d.png
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In this menu you can define the \b Name of the algorithm, the already
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meshed source \b Edge and the \b Mesh (It can be omitted only when
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projecting a submesh on another one from the same global Mesh).
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It could also be necessary to define the orientation of edges,
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which is done by indicating the <b>Source Vertex</b> being the first point
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of the Source Edge and the <b>Target Vertex</b> being the first point of
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the created \b Edge.
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In this dialog you can define
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<ul>
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<li> the \b Name of the algorithm,</li>
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<li> the already meshed <b> Source Edge</b> and </li>
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<li> the <b>Source Mesh </b> (It can be omitted only when projecting
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a sub-mesh on another one of the same Mesh).</li>
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<li> It could also be necessary to define the orientation of edges,
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which is done by indicating the <b>Source Vertex</b> being the
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first point of the <b>Source Edge </b>and the <b>Target Vertex</b> being
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the first point of the edge being meshed.</li>
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</ul>
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<br>
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For a group of edges, <b>Source</b> and <b>Target</b> vertices should be
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shared by one edge of the group. If <b>Source</b> and <b>Target</b>
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vertices are specified, the elements of the group must be adjacent.
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shared by only one edge of the group. If <b>Source</b> and <b>Target</b>
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vertices are specified, the edges in the group must be connected.
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The source and target groups must contain equal number of edges
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and they must form topologically equal structures.
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\n <b>Projection 2D</b> algorithm allows to define the mesh of a face
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(or group of faces) by the
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projection of another already meshed face (or group of faces). This
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algorithm works only
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if all edges of the target face have been meshed as 1D Projections of
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the edges of the source face.
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(or group of faces) by the projection of another already meshed face
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(or group of faces). This algorithm works only if all edges of the
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target face have been discretized into the same number of
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segments as corresponding edges of the source face.
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To apply this algorithm select the face to be meshed (indicated in the
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field \b Geometry of <b>Create mesh</b> dialog box), <b>Projection
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2D</b> in the list
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of 2D algorithms and click the <em>"Add Hypothesis"</em> button. The
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following dialog box will appear:
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2D</b> in the list of 2D algorithms and click the <em> "Add
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Hypothesis"</em> button. The following dialog box will appear:
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\image html projection_2d.png
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In this menu you can define the \b Name of the algorithm, the already
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meshed source \b Face and the \b Mesh (It can be omitted only when
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projecting a submesh on another one from the same global Mesh).
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It could also be necessary to define the orientation of mesh on the
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face, which is done by indicating two <b>Source Vertices</b>, which
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belong to the same edge of the source face, and two <b>Target
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Vertices</b>, which belong to the same edge of the created \b Face.
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For groups of face, they must contain equal number of faces
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and they must form topologically equal structures.
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In this dialog you can define
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<ul>
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<li> the \b Name of the algorithm, </li>
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<li> the already meshed <b> Source Face </b> and </li>
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<li> the <b> Source Mesh </b> (It can be omitted only when
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projecting a submesh on another one of the same Mesh). </li>
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<li> It could also be necessary to define the orientation of mesh on
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the face, which is done by indicating two <b>Source Vertices</b>,
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which belong to the same edge of the <b>Source Face</b>, and
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two <b>Target Vertices</b>, which belong to the same edge of the
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face being meshed.</li>
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</ul>
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For groups of face, the groups must contain equal number of faces and
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they must form topologically equal structures.
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\n <b>Projection 1D-2D</b> algorithm differs from <b>Projection 2D</b>
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algorithm in one aspect: it generates mesh segments on edges of
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