Copy Mesh
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-A mesh can be created by copying a part of or the whole other mesh.
+A mesh can be created by copying a part of or the whole other mesh. There are two modes of the operation:
+
+* copy mesh elements only;
+* copy mesh definition to another geometry. This mode can be used only if the source mesh is based on geometry. It is supposed that the new geometry is a modified geometry of the source mesh.
*To make a copy of a mesh:*
In the dialog:
+* select the mode of the operation.
* specify the part of mesh to copy:
* **Select whole mesh, sub-mesh or group** by mouse activating this checkbox; or
* apply Filters. **Set filter** button allows to apply a filter to the selection of elements. See more about filters in the :ref:`selection_filter_library_page` page.
* specify the **New Mesh Name**;
+* select the **New Geometry**;
* specify the conditions of copying:
- * activate **Generate groups** checkbox to copy the groups of the source mesh to the newly created mesh.
+ * activate **Generate groups** check-box to copy the groups of the source mesh to the newly created mesh. In the mode of copying to new geometry, standalone groups are copied only if **Copy Mesh Elements** is activated.
+ * activate **Reuse hypotheses** check-box to use hypotheses applied to the source mesh in the new mesh. Hypotheses having parameters defined as sub-shapes will be copied independently of this check-box state.
+ * activate **Copy Mesh Element** to copy mesh elements of sub-shapes that are not modified.
* Click **Apply** or **Apply and Close** button to confirm the operation.
+When copying the mesh to the new geometry, it can happen that a sub-shape used to define a sub-mesh, group or hypotheses is not found in the new geometry. In this case a new object depending on the not found sub-shape is marked with red color in the Object Browser in order to allow identifying such objects and to fix them, either by modifying their definition or by removing. If a depending object is a group on geometry, a standalone group is created instead. You can't transform it to a group on geometry, it can only be removed and re-created anew.
**See Also** a sample script of :ref:`tui_copy_mesh`.
