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