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84 lines
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C

/*=========================================================================
Program: Visualization Toolkit
Module: vtkLookupTableWithEnabling.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.
=========================================================================*/
/**
* @class vtkLookupTableWithEnabling
* @brief A lookup table that allows for an
* optional array to be provided that specifies which scalars to "enable" and
* which to "disable".
*
*
* vtkLookupTableWithEnabling "disables" or "grays out" output colors
* based on whether the given value in EnabledArray is "0" or not.
*
*
* @warning
* You must set the EnabledArray before MapScalars() is called.
* Indices of EnabledArray must map directly to those of the array passed
* to MapScalars().
*
*/
#ifndef vtkLookupTableWithEnabling_h
#define vtkLookupTableWithEnabling_h
#include "vtkLookupTable.h"
#include "vtkRenderingCoreModule.h" // For export macro
class vtkDataArray;
class VTKRENDERINGCORE_EXPORT vtkLookupTableWithEnabling : public vtkLookupTable
{
public:
static vtkLookupTableWithEnabling* New();
vtkTypeMacro(vtkLookupTableWithEnabling, vtkLookupTable);
void PrintSelf(ostream& os, vtkIndent indent) override;
//@{
/**
* This must be set before MapScalars() is called.
* Indices of this array must map directly to those in the scalars array
* passed to MapScalars().
* Values of 0 in the array indicate the color should be desaturatated.
*/
vtkGetObjectMacro(EnabledArray, vtkDataArray);
virtual void SetEnabledArray(vtkDataArray* enabledArray);
//@}
/**
* Map a set of scalars through the lookup table.
*/
void MapScalarsThroughTable2(void* input, unsigned char* output, int inputDataType,
int numberOfValues, int inputIncrement, int outputIncrement) override;
/**
* A convenience method for taking a color and desaturating it.
*/
virtual void DisableColor(unsigned char r, unsigned char g, unsigned char b, unsigned char* rd,
unsigned char* gd, unsigned char* bd);
protected:
vtkLookupTableWithEnabling(int sze = 256, int ext = 256);
~vtkLookupTableWithEnabling() override;
vtkDataArray* EnabledArray;
private:
vtkLookupTableWithEnabling(const vtkLookupTableWithEnabling&) = delete;
void operator=(const vtkLookupTableWithEnabling&) = delete;
};
#endif