Mesh deformation

[SimonCald]

We want to smoothly deform the mesh, either by pressing or pulling the surface of the model at certain points.

This will be done by computing a homothety function on nodes, the origin of the homothety is the plane Y=0. We also give a radius of smoothness for each deformation.

[create-issue-branch]

Branch issue-265-Mesh_deformation created!

[SimonCald]

The commit 3112bcd give the first draft for the algorithm. By giving a mesh, a list of points and a radius the code the able to deform the mesh.

Next steps are:

• 1. the implementation of locked elements that will become the new local origin of the homothety function.
• 2. implementation of tangent morphing, for example applying a pressure on the model in Y axis will apply a pull in Z and -Z i.e. we try to simulate a volume conservation