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88 lines
3.1 KiB
Plaintext
88 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 of the mesh:</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 (defined by a point and a vector)"
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\image html symmetry2.png "an axis"
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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 IDs of 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 selected elements will be highlighted in the
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viewer; or</li>
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<li>apply Filters. <b>Set filter</b> button allows to apply a filter to the selection of elements. See more
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about filters in the \ref selection_filter_library_page "Selection filter library" page.</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</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 cooordinates of the start \b Point of the axis vector;</li>
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<li>specify the axis \b Vector through the coordinates of its
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end point with respect to the coordinates of the start point;</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;</li>
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<li>specify the axis \b Vector through the coordinates of its
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end point with respect to the coordinates of the start point.</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 create the source
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mesh (or elements) at the new location and erase it from the previous location;</li>
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<li>activate <b>Copy elements</b> radio button to create the source
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mesh (or elements) at the new location, but leave it at the previous
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location, the source mesh will be considered one and single mesh with the result of the rotation;</li>
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<li>activate <b>Create as new mesh</b> radio button to leave the
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source mesh (or elements) at its previous location and create a new
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mesh at the new location, the new mesh appears in the Object Browser
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with the default name MeshName_rotated (it is possible to change this
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name in the adjacent box);</li>
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<li>activate <b> Copy groups </b> checkbox to copy the groups of elements of the source mesh to the newly created mesh.</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> checkbox to show the result of 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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