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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImplicitWindowFunction.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 vtkImplicitWindowFunction
* @brief implicit function maps another implicit function to lie within a specified range
*
* vtkImplicitWindowFunction is used to modify the output of another
* implicit function to lie within a specified "window", or function
* range. This can be used to add "thickness" to cutting or clipping
* functions.
*
* This class works as follows. First, it evaluates the function value of the
* user-specified implicit function. Then, based on the window range specified,
* it maps the function value into the window values specified.
*
*
* @sa
* vtkImplicitFunction
*/
#ifndef vtkImplicitWindowFunction_h
#define vtkImplicitWindowFunction_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkImplicitFunction.h"
class VTKCOMMONDATAMODEL_EXPORT vtkImplicitWindowFunction : public vtkImplicitFunction
{
public:
vtkTypeMacro(vtkImplicitWindowFunction, vtkImplicitFunction);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Construct object with window range (0,1) and window values (0,1).
*/
static vtkImplicitWindowFunction* New();
//@{
/**
* Evaluate window function.
*/
using vtkImplicitFunction::EvaluateFunction;
double EvaluateFunction(double x[3]) override;
//@}
/**
* Evaluate window function gradient. Just return implicit function gradient.
*/
void EvaluateGradient(double x[3], double n[3]) override;
//@{
/**
* Specify an implicit function to operate on.
*/
virtual void SetImplicitFunction(vtkImplicitFunction*);
vtkGetObjectMacro(ImplicitFunction, vtkImplicitFunction);
//@}
//@{
/**
* Specify the range of function values which are considered to lie within
* the window. WindowRange[0] is assumed to be less than WindowRange[1].
*/
vtkSetVector2Macro(WindowRange, double);
vtkGetVectorMacro(WindowRange, double, 2);
//@}
//@{
/**
* Specify the range of output values that the window range is mapped
* into. This is effectively a scaling and shifting of the original
* function values.
*/
vtkSetVector2Macro(WindowValues, double);
vtkGetVectorMacro(WindowValues, double, 2);
//@}
/**
* Override modified time retrieval because of object dependencies.
*/
vtkMTimeType GetMTime() override;
//@{
/**
* Participate in garbage collection.
*/
void Register(vtkObjectBase* o) override;
void UnRegister(vtkObjectBase* o) override;
//@}
protected:
vtkImplicitWindowFunction();
~vtkImplicitWindowFunction() override;
void ReportReferences(vtkGarbageCollector*) override;
vtkImplicitFunction* ImplicitFunction;
double WindowRange[2];
double WindowValues[2];
private:
vtkImplicitWindowFunction(const vtkImplicitWindowFunction&) = delete;
void operator=(const vtkImplicitWindowFunction&) = delete;
};
#endif
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