--- /dev/null
+.. _removing_nodes_and_elements_page:
+
+***************************
+Removing nodes and elements
+***************************
+
+In MESH you can remove nodes and all types of cells of your mesh.
+
+* :ref:`removing_nodes_anchor`
+* :ref:`removing_nodes_reconnect_anchor`
+* :ref:`removing_orphan_nodes_anchor`
+* :ref:`removing_elements_anchor`
+* :ref:`clear_mesh_anchor`
+
+
+
+.. _removing_nodes_anchor:
+
+Removing nodes
+##############
+
+**To remove a node:**
+
+.. |rmn| image:: ../images/remove_nodes_icon.png
+
+#. Select your mesh in the Object Browser or in the 3D viewer.
+#. From the **Modification** menu choose **Remove** and from the associated submenu select the **Nodes**, or just click *"Remove nodes"* button |rmn| in the toolbar.
+ The following dialog box will appear:
+
+ .. image:: ../images/removenodes.png
+ :align: center
+
+
+ In this dialog box you can specify one or several nodes:
+
+ * choose mesh nodes with the mouse in the 3D Viewer. It is possible to select a whole area with a mouse frame; or
+ * input the node IDs directly in **Node IDs** field. The selected nodes will be highlighted in the viewer; or
+ * apply Filters. **Set filter** button allows to apply a filter to the selection of nodes. See more about filters in the :ref:`selection_filter_library_page` page.
+
+#. Click **Apply** or **Apply and Close** to confirm deletion of the specified nodes.
+
+.. note::
+ Be careful while removing nodes because if you remove a definite node of your mesh all adjacent elements will be also deleted.
+
+
+.. _removing_nodes_reconnect_anchor:
+
+Removing node with reconnection
+###############################
+
+This operation removes a node and changes surrounding faces in order to cover a hole appearing in the mesh. This operation applies to 2D triangle mesh only.
+
+ .. image:: ../images/remove_node_reconnection.png
+ :align: center
+
+**To remove a node:**
+
+.. |rmnr| image:: ../images/remove_node_reconnection_icon.png
+
+#. Select your mesh in the Object Browser or in the 3D viewer.
+#. From the **Modification** menu choose **Remove** and from the associated submenu select the **Node with reconnection**, or just click *"Remove node with reconnection"* button |rmnr| in the toolbar.
+ The following dialog box will appear:
+
+ .. image:: ../images/remove_node_reconnection_dlg.png
+ :align: center
+
+
+ In this dialog box you can specify one node to remove:
+
+ * choose a mesh node with the mouse in the 3D Viewer or
+ * input the node ID directly in **ID** field. The selected node will be highlighted in the viewer.
+
+ Activate **Preview** to see how faces will change.
+
+#. Click **Apply** or **Apply and Close** to confirm deletion of the specified node.
+
+
+.. _removing_orphan_nodes_anchor:
+
+Removing orphan nodes
+#####################
+
+There is a quick way to remove all orphan (free) nodes.
+
+*To remove orphan nodes:*
+
+.. |rmon| image:: ../images/remove_orphan_nodes_icon.png
+
+#. Select your mesh in the Object Browser or in the 3D viewer.
+#. From the **Modification** menu choose **Remove** and from the associated submenu select **Orphan Nodes**, or just click *"Remove orphan nodes"* button |rmon| in the toolbar.
+ The following Warning message box will appear:
+
+ .. image:: ../images/removeorphannodes.png
+ :align: center
+
+#. Confirm nodes removal by pressing "Yes" button.
+
+
+.. _removing_elements_anchor:
+
+Removing elements
+#################
+
+*To remove an element:*
+
+.. |rme| image:: ../images/remove_elements_icon.png
+
+#. Select your mesh in the Object Browser or in the 3D viewer.
+#. From the **Modification** menu choose **Remove** and from the associated submenu select the **Elements**, or just click *"Remove elements"* button |rme| in the toolbar.
+
+ The following dialog box will appear:
+
+ .. image:: ../images/removeelements.png
+ :align: center
+
+ In this dialog box you can specify one or several elements:
+
+ * choose mesh elements with the mouse in the 3D Viewer. It is possible to select a whole area with a mouse frame; or
+ * input the element IDs directly in **ID Elements** field. The selected elements will be highlighted in the viewer; 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.
+
+#. Click **Apply** or **Apply and Close** to confirm deletion of the specified elements.
+
+.. image:: ../images/remove_nodes1.png
+ :align: center
+
+.. centered::
+ The initial mesh
+
+.. image:: ../images/remove_nodes2.png
+ :align: center
+
+.. centered::
+ The mesh with some elements removed
+
+
+.. _clear_mesh_anchor:
+
+Clearing Mesh Data
+##################
+
+*To remove all nodes and all types of cells in your mesh at once:*
+
+.. |clr| image:: ../images/mesh_clear.png
+
+#. Select your mesh in the Object Browser or in the 3D viewer.
+#. From the **Modification** menu choose **Remove** and from the associated submenu select the **Clear Mesh Data**, or just click *"Clear Mesh Data"* button |clr| in the toolbar. You can also right-click on the mesh in the Object Browser and select **Clear Mesh Data** in the pop-up menu.
+
+.. note::
+ This command works in a different way in different situations:
+ * if the mesh is computed on a geometry, then *Clear Mesh Data* removes all elements and nodes.
+ * if the mesh is not based on a geometry (imported, compound, created from scratch etc.), then *Clear Mesh Data* removes only the elements and nodes computed by algorithms. If no such elements or nodes have been created, can remove nothing.
+
+**See Also** a sample TUI Script of a :ref:`tui_removing_nodes_and_elements` operation.
+
+
+
