TriangularMesh.h

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//=======================================================================================
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//
//  This file is part of VirtualFluids. VirtualFluids is free software: you can
//  redistribute it and/or modify it under the terms of the GNU General Public
//  License as published by the Free Software Foundation, either version 3 of
//  the License, or (at your option) any later version.
//
//  VirtualFluids is distributed in the hope that it will be useful, but WITHOUT
//  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
//  for more details.
//
//  SPDX-License-Identifier: GPL-3.0-or-later
//  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
//
//=======================================================================================
#ifndef TriangularMesh_h
#define TriangularMesh_h
 
#include <vector>
#include <string>
#include <memory>
#include "global.h"
 
#include "geometries/Triangle/Triangle.h"
#include "geometries/BoundingBox/BoundingBox.h"
 
#include "geometries/Object.h"
 
class GbTriFaceMesh3D;
 
namespace vf::gpu {
 
class GeometryMemento;
 
enum class DiscretizationMethod { RAYCASTING, POINT_IN_OBJECT, POINT_UNDER_TRIANGLE };
 
 
class TriangularMesh : public Object
{
public:
 
    static TriangularMesh* make(const std::string& fileName, const std::vector<uint> ignorePatches = std::vector<uint>());
    TriangularMesh();
    TriangularMesh(const std::string& inputPath, const std::vector<uint> ignorePatches = std::vector<uint>());
    TriangularMesh(const std::string& inputPath, const BoundingBox &box);
    ~TriangularMesh() override = default;
 
    uint getNumberOfTriangles() const;
 
    void setTriangles(std::vector<Triangle> triangles);
    void setMinMax(BoundingBox minmax);
 
    std::vector<Triangle> triangleVec;
    Triangle *triangles = nullptr;
    long size = 0;
    BoundingBox minmax;
 
    SPtr<GbTriFaceMesh3D> VF_GbTriFaceMesh3D;
 
    bool operator==(const TriangularMesh &geometry) const;
 
    void findNeighbors();
 
    GbTriFaceMesh3D* getGbTriFaceMesh3D() const;
 
    void generateGbTriFaceMesh3D();
 
private:
 
    void initalizeDataFromTriangles();
 
    static std::vector<Vertex> getAverrageNormalsPerVertex(std::vector<std::vector<Triangle> > trianglesPerVertex);
    static void eliminateTriangleswithIdenticialNormal(std::vector<Triangle> &triangles);
 
public:
    SPtr<Object> clone() const override;
    double getX1Centroid() const override { throw "Not implemented in TriangularMesh"; }
    double getX1Minimum() const override { return minmax.minX; }
    double getX1Maximum() const override { return minmax.maxX; }
    double getX2Centroid() const override { throw "Not implemented in TriangularMesh"; }
    double getX2Minimum() const override { return minmax.minY; }
    double getX2Maximum() const override { return minmax.maxY; }
    double getX3Centroid() const override { throw "Not implemented in TriangularMesh"; }
    double getX3Minimum() const override { return minmax.minZ; }
    double getX3Maximum() const override { return minmax.maxZ; }
    void changeSizeByDelta(double delta) override;
    bool isPointInObject(const double& x1, const double& x2, const double& x3, const double& minOffset,
                         const double& maxOffset) override
    {
        (void)x1;
        (void)x2;
        (void)x3;
        (void)minOffset;
        (void)maxOffset;
        return false;
    }
 
    void findInnerNodes(SPtr<GridImp> grid) override;
};
 
}
 
#endif