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<p>If present, this element specifies a wall boundary condition for a deformable body. The wall boundary condition constrains vertices of the deformable body's mesh to have zero displacement if their reference positions are inside a prescribed open half space. The half space is defined by a plane with an outward normal vector.</p>
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<p>The nested elements are:</p><ul>
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<li><code>drake:point_on_plane</code>: Position of a point Q on the plane in the world frame, specified as three space-separated floating point values (x y z coordinates in meters).</li>
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<li><code>drake:outward_normal</code>: Outward normal to the half space expressed in the world frame, specified as three space-separated floating point values (nx ny nz components). The normal vector is automatically normalized to unit length.</li>
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</ul>
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<p>Multiple <code>drake:wall_boundary_condition</code> elements can be specified for a single deformable link to define multiple boundary conditions. This element is only valid for deformable links (those containing a <code>drake:deformable_properties</code> element).</p>
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<dlclass="section see"><dt>See also</dt><dd><aclass="el" href="group__multibody__parsing.html#tag_deformable_link_requirements">Deformable link requirements</a>, <aclass="el" href="classdrake_1_1multibody_1_1_deformable_model.html#a8e4f2d02a025433b059374ae0023881c" title="Sets wall boundary conditions for the body with the given id.">drake::multibody::DeformableModel::SetWallBoundaryCondition()</a></dd></dl>
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