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147 lines
4.2 KiB
C++
147 lines
4.2 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkImplicitBoolean.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 vtkImplicitBoolean
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* @brief implicit function consisting of boolean combinations of implicit functions
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*
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* vtkImplicitBoolean is an implicit function consisting of boolean
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* combinations of implicit functions. The class has a list of functions
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* (FunctionList) that are combined according to a specified operator
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* (VTK_UNION or VTK_INTERSECTION or VTK_DIFFERENCE). You can use nested
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* combinations of vtkImplicitFunction's (and/or vtkImplicitBoolean) to create
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* elaborate implicit functions. vtkImplicitBoolean is a concrete
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* implementation of vtkImplicitFunction.
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*
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* The operators work as follows. The VTK_UNION operator takes the minimum
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* value of all implicit functions. The VTK_INTERSECTION operator takes the
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* maximum value of all implicit functions. The VTK_DIFFERENCE operator
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* subtracts the 2nd through last implicit functions from the first. The
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* VTK_UNION_OF_MAGNITUDES takes the minimum absolute value of the
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* implicit functions.
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*/
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#ifndef vtkImplicitBoolean_h
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#define vtkImplicitBoolean_h
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#include "vtkCommonDataModelModule.h" // For export macro
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#include "vtkImplicitFunction.h"
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class vtkImplicitFunctionCollection;
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class VTKCOMMONDATAMODEL_EXPORT vtkImplicitBoolean : public vtkImplicitFunction
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{
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public:
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vtkTypeMacro(vtkImplicitBoolean, vtkImplicitFunction);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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enum OperationType
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{
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VTK_UNION = 0,
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VTK_INTERSECTION,
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VTK_DIFFERENCE,
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VTK_UNION_OF_MAGNITUDES
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};
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/**
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* Default boolean method is union.
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*/
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static vtkImplicitBoolean* New();
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//@{
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/**
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* Evaluate boolean combinations of implicit function using current operator.
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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 gradient of boolean combination.
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*/
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void EvaluateGradient(double x[3], double g[3]) override;
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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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* Add another implicit function to the list of functions.
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*/
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void AddFunction(vtkImplicitFunction* in);
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/**
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* Remove a function from the list of implicit functions to boolean.
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*/
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void RemoveFunction(vtkImplicitFunction* in);
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/**
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* Return the collection of implicit functions.
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*/
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vtkImplicitFunctionCollection* GetFunction() { return this->FunctionList; }
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//@{
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/**
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* Specify the type of boolean operation.
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*/
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vtkSetClampMacro(OperationType, int, VTK_UNION, VTK_UNION_OF_MAGNITUDES);
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vtkGetMacro(OperationType, int);
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void SetOperationTypeToUnion() { this->SetOperationType(VTK_UNION); }
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void SetOperationTypeToIntersection() { this->SetOperationType(VTK_INTERSECTION); }
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void SetOperationTypeToDifference() { this->SetOperationType(VTK_DIFFERENCE); }
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void SetOperationTypeToUnionOfMagnitudes() { this->SetOperationType(VTK_UNION_OF_MAGNITUDES); }
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const char* GetOperationTypeAsString();
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//@}
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protected:
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vtkImplicitBoolean();
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~vtkImplicitBoolean() override;
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vtkImplicitFunctionCollection* FunctionList;
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int OperationType;
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private:
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vtkImplicitBoolean(const vtkImplicitBoolean&) = delete;
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void operator=(const vtkImplicitBoolean&) = delete;
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};
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//@{
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/**
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* Return the boolean operation type as a descriptive character string.
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*/
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inline const char* vtkImplicitBoolean::GetOperationTypeAsString(void)
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{
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if (this->OperationType == VTK_UNION)
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{
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return "Union";
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}
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else if (this->OperationType == VTK_INTERSECTION)
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{
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return "Intersection";
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}
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else if (this->OperationType == VTK_DIFFERENCE)
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{
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return "Difference";
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}
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else
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{
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return "UnionOfMagnitudes";
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}
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}
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//@}
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#endif
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