118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkImplicitWindowFunction.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkImplicitWindowFunction
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* @brief implicit function maps another implicit function to lie within a specified range
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*
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* vtkImplicitWindowFunction is used to modify the output of another
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* implicit function to lie within a specified "window", or function
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* range. This can be used to add "thickness" to cutting or clipping
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* functions.
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*
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* This class works as follows. First, it evaluates the function value of the
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* user-specified implicit function. Then, based on the window range specified,
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* it maps the function value into the window values specified.
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*
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*
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* @sa
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* vtkImplicitFunction
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*/
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#ifndef vtkImplicitWindowFunction_h
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#define vtkImplicitWindowFunction_h
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#include "vtkCommonDataModelModule.h" // For export macro
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#include "vtkImplicitFunction.h"
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class VTKCOMMONDATAMODEL_EXPORT vtkImplicitWindowFunction : public vtkImplicitFunction
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{
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public:
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vtkTypeMacro(vtkImplicitWindowFunction, vtkImplicitFunction);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Construct object with window range (0,1) and window values (0,1).
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*/
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static vtkImplicitWindowFunction* New();
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///@{
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/**
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* Evaluate window function.
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*/
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using vtkImplicitFunction::EvaluateFunction;
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double EvaluateFunction(double x[3]) override;
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///@}
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/**
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* Evaluate window function gradient. Just return implicit function gradient.
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*/
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void EvaluateGradient(double x[3], double n[3]) override;
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///@{
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/**
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* Specify an implicit function to operate on.
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*/
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virtual void SetImplicitFunction(vtkImplicitFunction*);
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vtkGetObjectMacro(ImplicitFunction, vtkImplicitFunction);
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///@}
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///@{
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/**
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* Specify the range of function values which are considered to lie within
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* the window. WindowRange[0] is assumed to be less than WindowRange[1].
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*/
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vtkSetVector2Macro(WindowRange, double);
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vtkGetVectorMacro(WindowRange, double, 2);
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///@}
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///@{
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/**
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* Specify the range of output values that the window range is mapped
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* into. This is effectively a scaling and shifting of the original
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* function values.
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*/
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vtkSetVector2Macro(WindowValues, double);
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vtkGetVectorMacro(WindowValues, double, 2);
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///@}
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/**
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* Override modified time retrieval because of object dependencies.
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*/
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vtkMTimeType GetMTime() override;
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///@{
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/**
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* Participate in garbage collection.
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*/
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bool UsesGarbageCollector() const override { return true; }
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///@}
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protected:
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vtkImplicitWindowFunction();
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~vtkImplicitWindowFunction() override;
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void ReportReferences(vtkGarbageCollector*) override;
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vtkImplicitFunction* ImplicitFunction;
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double WindowRange[2];
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double WindowValues[2];
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private:
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vtkImplicitWindowFunction(const vtkImplicitWindowFunction&) = delete;
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void operator=(const vtkImplicitWindowFunction&) = delete;
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};
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#endif
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