imstkVTKTetrahedralMeshRenderDelegate.h

/*
** This file is part of the Interactive Medical Simulation Toolkit (iMSTK)
** iMSTK is distributed under the Apache License, Version 2.0.
** See accompanying NOTICE for details.
*/

#pragma once

#include "imstkVTKPolyDataRenderDelegate.h"

class vtkDataArray;
class vtkDoubleArray;
class vtkUnstructuredGrid;
class vtkCellArray;

namespace imstk
{
class TetrahedralMesh;
template<typename T, int N> class VecDataArray;

class VTKTetrahedralMeshRenderDelegate : public VTKPolyDataRenderDelegate
{
public:
    VTKTetrahedralMeshRenderDelegate();
    ~VTKTetrahedralMeshRenderDelegate() override = default;

    void processEvents() override;

protected:
    void init() override;

    void vertexDataModified(Event* e);
    void indexDataModified(Event* e);

    void geometryModified(Event* e);

    void setVertexBuffer(std::shared_ptr<VecDataArray<double, 3>> vertices);
    void setIndexBuffer(std::shared_ptr<VecDataArray<int, 4>> indices);

    std::shared_ptr<VecDataArray<double, 3>> m_vertices;
    std::shared_ptr<VecDataArray<int, 4>>    m_indices;

    vtkSmartPointer<vtkUnstructuredGrid> m_mesh;               

    vtkSmartPointer<vtkDoubleArray> m_mappedVertexArray;       
    vtkSmartPointer<vtkDataArray>   m_mappedVertexScalarArray; 
    vtkSmartPointer<vtkCellArray>   m_cellArray;               
};
} // namespace imstk