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94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkPolyPlane.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 vtkPolyPlane
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* @brief Implicit function that is generated by extrusion of a polyline along the Z axis
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*
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* vtkPolyPlane is, as the name suggests, an extrusion of a vtkPolyLine.
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* The extrusion direction is assumed to be the Z vector. It can be used in
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* combination with a vtkCutter to cut a dataset with a polyplane.
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* vtkPolyPlane is a concrete implementation of the abstract class
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* vtkImplicitFunction.
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*
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* @todo
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* Generalize to extrusions along arbitrary directions.
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*/
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#ifndef vtkPolyPlane_h
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#define vtkPolyPlane_h
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#include "vtkCommonDataModelModule.h" // For export macro
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#include "vtkImplicitFunction.h"
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class vtkPolyLine;
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class vtkDoubleArray;
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class VTKCOMMONDATAMODEL_EXPORT vtkPolyPlane : public vtkImplicitFunction
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{
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public:
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/**
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* Construct plane passing through origin and normal to z-axis.
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*/
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static vtkPolyPlane* New();
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vtkTypeMacro(vtkPolyPlane, vtkImplicitFunction);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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//@{
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/**
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* Evaluate plane equation for point x[3].
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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 function gradient at point x[3].
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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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/**
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* Set/get point through which plane passes. Plane is defined by point
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* and normal.
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*/
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virtual void SetPolyLine(vtkPolyLine*);
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vtkGetObjectMacro(PolyLine, vtkPolyLine);
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//@}
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/**
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* Override GetMTime to include the polyline
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*/
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vtkMTimeType GetMTime() override;
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protected:
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vtkPolyPlane();
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~vtkPolyPlane() override;
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void ComputeNormals();
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double ExtrusionDirection[3];
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vtkPolyLine* PolyLine;
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vtkTimeStamp NormalComputeTime;
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vtkDoubleArray* Normals;
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vtkIdType ClosestPlaneIdx;
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private:
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vtkPolyPlane(const vtkPolyPlane&) = delete;
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void operator=(const vtkPolyPlane&) = delete;
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};
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#endif
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