Creating Initial Control Point Positions

Control points for the morpher are specified using a Point Set. You create the initial control point positions for the shape sensitivity and mesh deformation calculations by using the Create Point Set dialog.

Once you create the control points, the Point Set must be associated with the physics continuum that contains a mesh deformation model. When associated with a physics continuum, you specify the movement of the control points through the Morpher: Displacement profile under the Point Sets node.

When you position control points around a boundary to be deformed, locate them close enough to have a sufficiently strong influence on it, but far enough away from the boundary to ensure smooth deformations to it. For an airfoil, for example, a good starting point is to place 10 to 20 control points strategically at a distance of 20% of its chord length from the boundary.

To create the initial control point positions:

1. Right-click the Point Sets node and select New Point Set, then one of the following options:
   • Table...
   • Lattice...
   • Line...
   • Part...
2. In the respective Create Point Set dialog, make the appropriate point set settings, click Create, then Close.
3. Select the [Table, Lattice, Line, Part] Point Set node and set the Physics Continuum to the physics continuum for which the mesh deformation is active.

   If the point set is assigned to a continuum with a mesh deformation model, it will be included in the calculation of the mesh deformation solver.

4. Select the Point Sets > [Table, Lattice, Line, Part] Point Set > Physics Values > Morpher: Displacement node and set the appropriate profile method.