tfFlatSurfaceConstraint.h

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/*******************************************************************************
 * This file is part of Tissue Forge.
 * Copyright (c) 2022-2024 T.J. Sego and Tien Comlekoglu
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#ifndef _MODELS_VERTEX_SOLVER_ACTORS_TFFLATSURFACECONSTRAINT_H_
#define _MODELS_VERTEX_SOLVER_ACTORS_TFFLATSURFACECONSTRAINT_H_
 
#include <models/vertex/solver/tfMeshObj.h>
 
 
namespace TissueForge::models::vertex { 
 

    struct FlatSurfaceConstraint : MeshObjActor {

        FloatP_t lam;
 
        FlatSurfaceConstraint(const FloatP_t &_lam=0.1) {
            lam = _lam;
        }

        virtual std::string name() const override { return "FlatSurfaceConstraint"; }

        static std::string actorName() { return "FlatSurfaceConstraint"; }

        FloatP_t energy(const Surface *source, const Vertex *target) override;

        FVector3 force(const Surface *source, const Vertex *target) override;

        static FlatSurfaceConstraint *fromString(const std::string &str);
    };
 
}
 
#endif // _MODELS_VERTEX_SOLVER_ACTORS_TFFLATSURFACECONSTRAINT_H_