vtkMapper.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkMapper.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkMapper_h
#define vtkMapper_h
 
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkAbstractMapper3D.h"
#include "vtkSystemIncludes.h" // For VTK_COLOR_MODE_DEFAULT and _MAP_SCALARS
#include "vtkSmartPointer.h" // needed for vtkSmartPointer.
 
#define VTK_RESOLVE_OFF 0
#define VTK_RESOLVE_POLYGON_OFFSET 1
#define VTK_RESOLVE_SHIFT_ZBUFFER 2
 
#define VTK_GET_ARRAY_BY_ID 0
#define VTK_GET_ARRAY_BY_NAME 1
 
#define VTK_MATERIALMODE_DEFAULT  0
#define VTK_MATERIALMODE_AMBIENT  1
#define VTK_MATERIALMODE_DIFFUSE  2
#define VTK_MATERIALMODE_AMBIENT_AND_DIFFUSE  3
 
class vtkWindow;
class vtkRenderer;
class vtkActor;
class vtkDataSet;
class vtkFloatArray;
class vtkImageData;
class vtkScalarsToColors;
class vtkUnsignedCharArray;
 
class VTKRENDERINGCORE_EXPORT vtkMapper : public vtkAbstractMapper3D
{
public:
  vtkTypeMacro(vtkMapper, vtkAbstractMapper3D);
  void PrintSelf(ostream& os, vtkIndent indent);
 
  void ShallowCopy(vtkAbstractMapper *m);
 
  unsigned long GetMTime();
 
  virtual void Render(vtkRenderer *ren, vtkActor *a) = 0;
 
  virtual void ReleaseGraphicsResources(vtkWindow *) {}
 
 
  void SetLookupTable(vtkScalarsToColors *lut);
  vtkScalarsToColors *GetLookupTable();
 
  virtual void CreateDefaultLookupTable();
 
 
  vtkSetMacro(ScalarVisibility, int);
  vtkGetMacro(ScalarVisibility, int);
  vtkBooleanMacro(ScalarVisibility, int);
 
 
  vtkSetMacro(Static, int);
  vtkGetMacro(Static, int);
  vtkBooleanMacro(Static, int);
 
 
  vtkSetMacro(ColorMode, int);
  vtkGetMacro(ColorMode, int);
  void SetColorModeToDefault()
    { this->SetColorMode(VTK_COLOR_MODE_DEFAULT); }
  void SetColorModeToMapScalars()
    { this->SetColorMode(VTK_COLOR_MODE_MAP_SCALARS); }
  void SetColorModeToDirectScalars()
  { this->SetColorMode(VTK_COLOR_MODE_DIRECT_SCALARS); }
 
  const char *GetColorModeAsString();
 
 
  vtkSetMacro(InterpolateScalarsBeforeMapping, int);
  vtkGetMacro(InterpolateScalarsBeforeMapping, int);
  vtkBooleanMacro(InterpolateScalarsBeforeMapping, int);
 
 
  vtkSetMacro(UseLookupTableScalarRange, int);
  vtkGetMacro(UseLookupTableScalarRange, int);
  vtkBooleanMacro(UseLookupTableScalarRange, int);
 
 
  vtkSetVector2Macro(ScalarRange, double);
  vtkGetVectorMacro(ScalarRange, double, 2);
 
 
  vtkSetMacro(ImmediateModeRendering, int);
  vtkGetMacro(ImmediateModeRendering, int);
  vtkBooleanMacro(ImmediateModeRendering, int);
 
 
  static void SetGlobalImmediateModeRendering(int val);
  static void GlobalImmediateModeRenderingOn()
    { vtkMapper::SetGlobalImmediateModeRendering(1); }
  static void GlobalImmediateModeRenderingOff()
    { vtkMapper::SetGlobalImmediateModeRendering(0); }
  static int  GetGlobalImmediateModeRendering();
 
  //BTX
 
  vtkGetMacro(ForceCompileOnly, int);
  void SetForceCompileOnly(int value);
  //ETX
 
  // When ScalarMode is set to use Field Data (ScalarModeToFieldData),
  // you must call SelectColorArray to choose the field data array to
  // be used to color cells. In this mode, the default behavior is to
  // treat the field data tuples as being associated with cells. If
  // the poly data contains triangle strips, the array is expected to
  // contain the cell data for each mini-cell formed by any triangle
  // strips in the poly data as opposed to treating them as a single
  // tuple that applies to the entire strip.  This mode can also be
  // used to color the entire poly data by a single color obtained by
  // mapping the tuple at a given index in the field data array
  // through the color map. Use SetFieldDataTupleId() to specify
  // the tuple index.
  vtkSetMacro(ScalarMode, int);
  vtkGetMacro(ScalarMode, int);
  void SetScalarModeToDefault()
    { this->SetScalarMode(VTK_SCALAR_MODE_DEFAULT); }
  void SetScalarModeToUsePointData()
    { this->SetScalarMode(VTK_SCALAR_MODE_USE_POINT_DATA); }
  void SetScalarModeToUseCellData()
    { this->SetScalarMode(VTK_SCALAR_MODE_USE_CELL_DATA); }
  void SetScalarModeToUsePointFieldData()
    { this->SetScalarMode(VTK_SCALAR_MODE_USE_POINT_FIELD_DATA); }
  void SetScalarModeToUseCellFieldData()
    { this->SetScalarMode(VTK_SCALAR_MODE_USE_CELL_FIELD_DATA); }
  void SetScalarModeToUseFieldData()
    { this->SetScalarMode(VTK_SCALAR_MODE_USE_FIELD_DATA); }
 
 
  void SelectColorArray(int arrayNum);
  void SelectColorArray(const char* arrayName);
 
 
  // When ScalarMode is set to UseFieldData, set the index of the
  // tuple by which to color the entire data set. By default, the
  // index is -1, which means to treat the field data array selected
  // with SelectColorArray as having a scalar value for each cell.
  // Indices of 0 or higher mean to use the tuple at the given index
  // for coloring the entire data set.
  vtkSetMacro(FieldDataTupleId, vtkIdType);
  vtkGetMacro(FieldDataTupleId, vtkIdType);
 
 
  void ColorByArrayComponent(int arrayNum, int component);
  void ColorByArrayComponent(const char* arrayName, int component);
 
 
  char* GetArrayName() { return this->ArrayName; }
  int GetArrayId() { return this->ArrayId; }
  int GetArrayAccessMode() { return this->ArrayAccessMode; }
  int GetArrayComponent() { return this->ArrayComponent; }
 
  const char *GetScalarModeAsString();
 
 
  static void SetResolveCoincidentTopology(int val);
  static int  GetResolveCoincidentTopology();
  static void SetResolveCoincidentTopologyToDefault();
  static void SetResolveCoincidentTopologyToOff()
    { SetResolveCoincidentTopology(VTK_RESOLVE_OFF) ;}
  static void SetResolveCoincidentTopologyToPolygonOffset()
    { SetResolveCoincidentTopology(VTK_RESOLVE_POLYGON_OFFSET); }
  static void SetResolveCoincidentTopologyToShiftZBuffer()
    { SetResolveCoincidentTopology(VTK_RESOLVE_SHIFT_ZBUFFER); }
 
 
  static void SetResolveCoincidentTopologyPolygonOffsetParameters(
    double factor, double units);
  static void GetResolveCoincidentTopologyPolygonOffsetParameters(
    double& factor, double& units);
 
 
  static void SetResolveCoincidentTopologyPolygonOffsetFaces(int faces);
  static int GetResolveCoincidentTopologyPolygonOffsetFaces();
 
 
  static void SetResolveCoincidentTopologyZShift(double val);
  static double GetResolveCoincidentTopologyZShift();
 
 
  virtual double *GetBounds();
  virtual void GetBounds(double bounds[6])
    { this->vtkAbstractMapper3D::GetBounds(bounds); }
 
 
  void SetRenderTime(double time) {this->RenderTime = time;}
  vtkGetMacro(RenderTime, double);
 
  //BTX
 
  vtkDataSet *GetInput();
  //ETX
 
 
  vtkDataSet *GetInputAsDataSet()
    { return this->GetInput(); }
 
 
  virtual vtkUnsignedCharArray *MapScalars(double alpha);
  virtual vtkUnsignedCharArray *MapScalars(vtkDataSet *input,
                                           double alpha);
 
 
  vtkSetMacro(ScalarMaterialMode,int);
  vtkGetMacro(ScalarMaterialMode,int);
  void SetScalarMaterialModeToDefault()
    { this->SetScalarMaterialMode(VTK_MATERIALMODE_DEFAULT); }
  void SetScalarMaterialModeToAmbient()
    { this->SetScalarMaterialMode(VTK_MATERIALMODE_AMBIENT); }
  void SetScalarMaterialModeToDiffuse()
    { this->SetScalarMaterialMode(VTK_MATERIALMODE_DIFFUSE); }
  void SetScalarMaterialModeToAmbientAndDiffuse()
    { this->SetScalarMaterialMode(VTK_MATERIALMODE_AMBIENT_AND_DIFFUSE); }
 
  const char *GetScalarMaterialModeAsString();
 
 
  virtual bool GetIsOpaque()
    { return true; }
 
 
  virtual bool GetSupportsSelection()
    { return false; }
 
  virtual int CanUseTextureMapForColoring(vtkDataObject* input);
 
protected:
  vtkMapper();
  ~vtkMapper();
 
  vtkUnsignedCharArray *Colors;
 
  // Use texture coordinates for coloring.
  int InterpolateScalarsBeforeMapping;
  // Coordinate for each point.
  vtkFloatArray *ColorCoordinates;
  // 1D ColorMap used for the texture image.
  vtkImageData* ColorTextureMap;
  void MapScalarsToTexture(vtkAbstractArray* scalars, double alpha);
 
  vtkScalarsToColors *LookupTable;
  int ScalarVisibility;
  vtkTimeStamp BuildTime;
  double ScalarRange[2];
  int UseLookupTableScalarRange;
  int ImmediateModeRendering;
  int ColorMode;
  int ScalarMode;
  int ScalarMaterialMode;
 
  double RenderTime;
 
  // for coloring by a component of a field data array
  int ArrayId;
  char ArrayName[256];
  int ArrayComponent;
  int ArrayAccessMode;
 
  // If coloring by field data, which tuple to use to color the entire
  // data set. If -1, treat array values as cell data.
  vtkIdType FieldDataTupleId;
 
  int Static;
 
  int ForceCompileOnly;
 
private:
  vtkMapper(const vtkMapper&);  // Not implemented.
  void operator=(const vtkMapper&);  // Not implemented.
};
 
#endif