Add native spherical harmonic surface coordinates to coupled equilibrium

libmeanfield/interface/operators/stellar_equilibrium_problem.cppm

@@ -154,7 +154,10 @@ export namespace mean_field::equilibrium {
                   m_discretization.domainMapper(),
                   m_stellarModel,
                   operators::PressureSurfaceConstraintView{m_compiledSurfaceConstraint},
-                  CompileDefaultDomainDeformation(finiteElementModel)
+                  CompileDomainDeformation(
+                      m_discretization,
+                      finiteElementModel
+                  )
               ) {
             VerifyProblem();
         }
@@ -313,19 +316,13 @@ export namespace mean_field::equilibrium {
             );
         }
 
-        [[nodiscard]] static deformation::PreparedDomainDeformationRuntime
-        CompileDefaultDomainDeformation(fem::FEM &finiteElementModel) {
-            MFEM_VERIFY(
-                finiteElementModel.mesh != nullptr,
-                "Default stellar domain-deformation compilation requires a physical mesh."
-            );
-            mfem::Vector referenceCenter(finiteElementModel.mesh->SpaceDimension());
-            referenceCenter = 0.0;
-
+        [[nodiscard]] static deformation::PreparedDomainDeformationRuntime CompileDomainDeformation(
+            const DiscretizationType &discretization,
+            fem::FEM &finiteElementModel
+        ) {
             return deformation::PreparedDomainDeformationRuntime{deformation::compileDomainDeformation(
-                deformation::NodalRadialSurface{std::move(referenceCenter)},
-                deformation::PowerLawRadialInteriorExtension{}, deformation::FixedInfinityRadialVacuumExtension{},
-                finiteElementModel
+                discretization.surfaceDeformationPrescription(), discretization.interiorDeformationExtension(),
+                discretization.vacuumDeformationExtension(), finiteElementModel
             )};
         }