Energies

Formulation

The local formulation of the energy's linear equation reads :

where :

• k_i,red : Column vector.
• s_i : Scalar value.

Custom Energy Type

Create a public class which inherits from the IEnergyType interface and declare the two properties required to implement the interface. These two properties correspond to the local column vector k_i,red and the scalar coefficient s_i necessary to define a linear constraint from the local vector x_red.

public class CostumEnergyName : IEnergyType
{
  /// <inheritdoc/>
  public Dictionary<int, double> LocalKi { get; }

  /// <inheritdoc/>
  public double Si { get; }

  ...

}

Then, in the class constructor, instanciate and initialise the values of the properties. The parameters of the constructor should provide the information needed to fill in k_i,red and s_i.

  public CostumEnergyName()
  {
    ...
  }

Implemented Energy Types

The following energies can be found in BRIDGES.Solvers.GuidedProjection.EnergyTypes namespace.

Segment Orthogonality

Energy enforcing a segment defined from two point variables, p_i and p_j, to be orthogonal to a constant direction v_dir. For more information, see the dedicated page.

Segment Parallelity

Energy enforcing a segment defined from two point variables, p_i and p_j, to be parallel to a constant direction v_dir. For more information, see the dedicated page.