Shape on Shape Deformation

 

 

Links / Videos :

 

 

This command allows to compute a deformation according to 2 surfaces and different types of projection and matching.

Let's take a point named P on the shape to deform, a source shape (F1) and a destination shape (F2).

The computation of the equivalent of the point P (named P') on the shape F2 is done in 3 stages:

The point P is projected on the shape F1 using to 2 modes (Parallel or Nearest), you get the point P1.

Then the point P1 is reported on the shape F2 using 3 modes (Parallel, Normal or Nearest), you get the point P2.

Then the position of the point P' is obtained by moving the point P2 using 2 modes (Parallel or Normal), a scale factor can be applied as well.

 
 

Example of computation of deformation point using the Nearest type for the projection (in red) and the matching (in green) and the Normal type for the expansion.

 

 

Creation stages / Use:

 

Select the Construction > Deformations > Shape on Shape Deformation... command from the drop-down menu.

 

  1. Select the source shape.

  2. Select the destination shape.

  3. Choose the projection type of each point of the shape to modify on the source shape:

 

 
 

In blue: Parallel projection type according to the direction D.

in red: Nearest projection type

 

  1. Choose the maching type between the source and the destination shapes:

 

 
 

In blue: Parallel projection type according to the direction D.

In green: Normal projection type

in red: Nearest projection type

 

  1. Choose the expansion type of each point of the deformed shape according to the destination shape:

 

 
 

In blue: Parallel projection type according to the direction D.

in red: Nearest projection type

 

  1. Give the scale factor of the modified shape.
  2. Select the deformation direction. The first face intersecting this direction will be used for computing the deformation, it is recommended to use surfaces instead of solid.

 

 

The initial volume of the shape is not preserved after deformation.

 

 

Available options:

 

 

 

You can select a point on the shape to deform in order to display its final position.

 

Example:

 

 Source shape: the yellow plane at the bottom

 Destination shape: the blue wavy surface on top.

Deformation result