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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.
=========================================================================*/
// .NAME vtkImplicitWindowFunction - implicit function maps another implicit function to lie within a specified range
// .SECTION Description
// 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.
//
// .SECTION See Also
// vtkImplicitFunction
#ifndef __vtkImplicitWindowFunction_h
#define __vtkImplicitWindowFunction_h
#include "vtkImplicitFunction.h"
class VTK_FILTERING_EXPORT vtkImplicitWindowFunction : public vtkImplicitFunction
{
public:
vtkTypeMacro(vtkImplicitWindowFunction,vtkImplicitFunction);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Construct object with window range (0,1) and window values (0,1).
static vtkImplicitWindowFunction *New();
// Description
// Evaluate window function.
double EvaluateFunction(double x[3]);
double EvaluateFunction(double x, double y, double z)
{return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;
// Description
// Evaluate window function gradient. Just return implicit function gradient.
void EvaluateGradient(double x[3], double n[3]);
// Description:
// Specify an implicit function to operate on.
virtual void SetImplicitFunction(vtkImplicitFunction*);
vtkGetObjectMacro(ImplicitFunction,vtkImplicitFunction);
// Description:
// 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);
// Description:
// 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);
// Description:
// Override modified time retrieval because of object dependencies.
unsigned long GetMTime();
// Description:
// Participate in garbage collection.
virtual void Register(vtkObjectBase* o);
virtual void UnRegister(vtkObjectBase* o);
protected:
vtkImplicitWindowFunction();
~vtkImplicitWindowFunction();
virtual void ReportReferences(vtkGarbageCollector*);
vtkImplicitFunction *ImplicitFunction;
double WindowRange[2];
double WindowValues[2];
private:
vtkImplicitWindowFunction(const vtkImplicitWindowFunction&); // Not implemented.
void operator=(const vtkImplicitWindowFunction&); // Not implemented.
};
#endif
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