vtkImageVolumeRepresentation.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkImageVolumeRepresentation_h
#define vtkImageVolumeRepresentation_h

#include "vtkNew.h"                 // needed for vtkNew.
#include "vtkRemotingViewsModule.h" // needed for exports
#include "vtkSmartPointer.h"        // needed for vtkSmartPointer
#include "vtkVolumeRepresentation.h"

#include <string> // for ivar

class vtkColorTransferFunction;
class vtkDataSet;
class vtkExtentTranslator;
class vtkFixedPointVolumeRayCastMapper;
class vtkImageData;
class vtkImplicitFunction;
class vtkOutlineSource;
class vtkPVLODVolume;
class vtkPVTransferFunction2D;
class vtkPiecewiseFunction;
class vtkPolyDataMapper;
class vtkVolumeMapper;
class vtkVolumeProperty;

class VTKREMOTINGVIEWS_EXPORT vtkImageVolumeRepresentation : public vtkVolumeRepresentation
{
public:
  static vtkImageVolumeRepresentation* New();
  vtkTypeMacro(vtkImageVolumeRepresentation, vtkVolumeRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  int ProcessViewRequest(vtkInformationRequestKey* request_type, vtkInformation* inInfo,
    vtkInformation* outInfo) override;

  //***************************************************************************
  // Forwarded to vtkVolumeProperty.
  void SetAmbient(double);
  void SetDiffuse(double);
  void SetSpecular(double);
  void SetSpecularPower(double);
  void SetShade(bool);
  void SetAnisotropy(float);
  void SetSliceFunction(vtkImplicitFunction* slice);

  //***************************************************************************
  // Forwarded to Actor.
  virtual void SetCoordinateSystem(int);


  void SetIsosurfaceValue(int i, double value);
  void SetNumberOfIsosurfaces(int number);

  //***************************************************************************
  // Forwarded to vtkSmartVolumeMapper/vtkMultiBlockVolumeMapper.
  void SetRequestedRenderMode(int);
  void SetBlendMode(int);
  void SetCropping(int);
  void SetGlobalIlluminationReach(float);
  void SetVolumetricScatteringBlending(float);


  vtkSetVector3Macro(CroppingOrigin, double);
  vtkGetVector3Macro(CroppingOrigin, double);


  vtkSetVector3Macro(CroppingScale, double);
  vtkGetVector3Macro(CroppingScale, double);

  //***************************************************************************
  // For 2D transfer functions
  void SetUseTransfer2D(bool);
  void SetUseGradientForTransfer2D(bool);
  void SelectColorArray2(int, int, int, int, const char* name);
  void SelectColorArray2Component(int component);
  void SetTransferFunction2D(vtkPVTransferFunction2D* transfer2d);

protected:
  vtkImageVolumeRepresentation();
  ~vtkImageVolumeRepresentation() override;

  int FillInputPortInformation(int port, vtkInformation* info) override;

  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

  bool AddToView(vtkView* view) override;

  bool RemoveFromView(vtkView* view) override;

  virtual void UpdateMapperParameters();

  virtual vtkPVLODVolume* GetRenderedProp() { return this->Actor; };

  vtkSmartPointer<vtkDataObject> Cache;
  vtkSmartPointer<vtkVolumeMapper> VolumeMapper;

  vtkNew<vtkPolyDataMapper> OutlineMapper;

  int WholeExtent[6] = { 0, -1, 0, -1, 0, -1 };
  double CroppingOrigin[3] = { 0, 0, 0 };
  double CroppingScale[3] = { 1, 1, 1 };

  // 2D transfer function support
  bool UseTransfer2D = false;
  bool UseGradientForTransfer2D = true;
  vtkPVTransferFunction2D* TransferFunction2D = nullptr;
  int ColorArray2FieldAssociation = -1;
  int ColorArray2Component = -1;
  std::string ColorArray2Name;

private:
  vtkImageVolumeRepresentation(const vtkImageVolumeRepresentation&) = delete;
  void operator=(const vtkImageVolumeRepresentation&) = delete;
};

#endif