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131 lines
4.3 KiB
131 lines
4.3 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkImplicitBoolean.h,v $
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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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// .NAME vtkImplicitBoolean - implicit function consisting of boolean combinations of implicit functions
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// .SECTION Description
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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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#ifndef __vtkImplicitBoolean_h
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#define __vtkImplicitBoolean_h
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#include "vtkImplicitFunction.h"
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class vtkImplicitFunctionCollection;
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#define VTK_UNION 0
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#define VTK_INTERSECTION 1
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#define VTK_DIFFERENCE 2
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#define VTK_UNION_OF_MAGNITUDES 3
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class VTK_FILTERING_EXPORT vtkImplicitBoolean : public vtkImplicitFunction
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{
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public:
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vtkTypeRevisionMacro(vtkImplicitBoolean,vtkImplicitFunction);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Default boolean method is union.
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static vtkImplicitBoolean *New();
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// Description:
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// Evaluate boolean combinations of implicit function using current operator.
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double EvaluateFunction(double x[3]);
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double EvaluateFunction(double x, double y, double z)
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{return this->vtkImplicitFunction::EvaluateFunction(x, y, z); } ;
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// Description:
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// Evaluate gradient of boolean combination.
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void EvaluateGradient(double x[3], double g[3]);
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// Description:
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// Override modified time retrieval because of object dependencies.
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unsigned long GetMTime();
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// Description:
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// Add another implicit function to the list of functions.
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void AddFunction(vtkImplicitFunction *in);
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// Description:
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// Remove a function from the list of implicit functions to boolean.
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void RemoveFunction(vtkImplicitFunction *in);
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// Description:
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// Return the collection of implicit functions.
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vtkImplicitFunctionCollection *GetFunction() {return this->FunctionList;};
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// Description:
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// Specify the type of boolean operation.
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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()
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{this->SetOperationType(VTK_UNION);};
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void SetOperationTypeToIntersection()
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{this->SetOperationType(VTK_INTERSECTION);};
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void SetOperationTypeToDifference()
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{this->SetOperationType(VTK_DIFFERENCE);};
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void SetOperationTypeToUnionOfMagnitudes()
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{this->SetOperationType(VTK_UNION_OF_MAGNITUDES);};
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const char *GetOperationTypeAsString();
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protected:
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vtkImplicitBoolean();
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~vtkImplicitBoolean();
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vtkImplicitFunctionCollection *FunctionList;
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int OperationType;
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private:
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vtkImplicitBoolean(const vtkImplicitBoolean&); // Not implemented.
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void operator=(const vtkImplicitBoolean&); // Not implemented.
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};
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// Description:
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// Return the boolean operation type as a descriptive character string.
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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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#endif
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