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93 lines
3.1 KiB
Plaintext
93 lines
3.1 KiB
Plaintext
/*!
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\page symmetry_page Symmetry
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\n This geometrical operation allows to perform a symmetrical copy of
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your mesh or some of its elements.
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<em>To create a symmetrical copy:</em>
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<ol>
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<li>From the \b Modification menu choose \b Transformation -> \b Symmetry item or click
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<em>"Symmetry"</em> button in the toolbar.
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\image html symmetry.png "Symmetry button"
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One of the following dialogs will appear:
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It is possible to mirror a mesh or some of its elements through:
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\image html symmetry1.png "a point" <br>
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\image html symmetry2.png "an axis" <br>
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\image html symmetry3.png "a plane (defined by a point and a normal to the plane)"
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</li>
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<li>In the dialog:
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<ul>
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<li>specify the elements for the symmetry operation:
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<ul>
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<li><b>Select the whole mesh, submesh or group</b> activating this
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checkbox; or</li>
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<li>choose mesh elements with the mouse in the 3D Viewer. It is
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possible to select a whole area with a mouse frame; or</li>
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<li>input the element IDs directly in <b>ID Elements</b> field. The
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selected elements will be highlighted in the viewer; or</li>
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<li>apply Filters. <b>Set Filter</b> button allows to apply a
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\ref filtering_elements "filter" to the selection of elements.</li>
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</ul>
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</li>
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<li>depending on the nature of the mirror object:
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<ul>
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<li>if the mesh is mirrored through a point, specify the coordinates
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of the point, either directly or by picking a mesh node;</li>
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<li>if the mesh is mirrored through an axis:
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<ul>
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<li>specify the coordinates of the start \b Point of the axis, either
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directly or by picking a mesh node;</li>
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<li>specify the components of axis \b Vector, either directly or by
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picking a mesh node, in which case \b Vector is defined as a shift
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between the \b Point and the node;</li>
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</ul>
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</li>
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<li>if the mesh is mirrored through a plane:
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<ul>
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<li>specify the cooordinates of the \b Point lying on the plane,
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either directly or by picking a mesh node;</li>
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<li>specify the components of plane \b Normal, either directly or by
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picking a mesh node, in which case \b Normal is defined as a shift
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between the \b Point and the node.</li>
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</ul>
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</li>
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<li>specify the conditions of symmetry operation:
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<ul>
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<li>activate <b>Move elements</b> radio button to change the location of
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the selected elements within the current mesh;</li>
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<li>activate <b>Copy elements</b> radio button to duplicate the
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selected elements at the new location within the current mesh;</li>
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<li>activate <b>Create as new mesh</b> radio button to create a new
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element in a new mesh; the new mesh appears in the Object Browser
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with the default name \a MeshName_mirrored (it is possible to change
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this name in the adjacent box);</li>
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<li>activate <b> Copy groups </b> check-box to put new mesh entities
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into new groups if source entities belong to some groups. New
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groups are named by pattern "<old group name>_mirrored".</li>
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</ul>
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</li>
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</ul>
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<li>activate <b>Preview</b> check-box to show the result of
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transformation in the viewer;</li>
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<li>click \b Apply or <b> Apply and Close</b> button to confirm the
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operation.</li>
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</ul>
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</ol>
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<br><b>See Also</b> a sample TUI Script of a
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\ref tui_symmetry "Symmetry" operation.
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*/
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