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108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCylinder.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 vtkCylinder
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* @brief implicit function for a cylinder
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*
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* vtkCylinder computes the implicit function and function gradient
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* for a cylinder using F(r)=r^2-Radius^2. vtkCylinder is a concrete
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* implementation of vtkImplicitFunction. By default the Cylinder is
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* centered at the origin and the axis of rotation is along the
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* y-axis. You can redefine the center and axis of rotation by setting
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* the Center and Axis data members. (Note that it is also possible to
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* use the superclass' vtkImplicitFunction transformation matrix if
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* necessary to reposition by using FunctionValue() and
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* FunctionGradient().)
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*
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* @warning
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* The cylinder is infinite in extent. To truncate the cylinder in
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* modeling operations use the vtkImplicitBoolean in combination with
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* clipping planes.
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*/
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#ifndef vtkCylinder_h
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#define vtkCylinder_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 vtkCylinder : public vtkImplicitFunction
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{
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public:
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vtkTypeMacro(vtkCylinder,vtkImplicitFunction);
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void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
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/**
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* Construct cylinder radius of 0.5; centered at origin with axis
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* along y coordinate axis.
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*/
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static vtkCylinder *New();
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//@{
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/**
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* Evaluate cylinder equation F(r) = r^2 - Radius^2.
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*/
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double EvaluateFunction(double x[3]) VTK_OVERRIDE;
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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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//@}
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/**
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* Evaluate cylinder function gradient.
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*/
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void EvaluateGradient(double x[3], double g[3]) VTK_OVERRIDE;
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//@{
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/**
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* Set/Get the cylinder radius.
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*/
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vtkSetMacro(Radius,double);
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vtkGetMacro(Radius,double);
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//@}
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//@{
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/**
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* Set/Get the cylinder center.
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*/
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vtkSetVector3Macro(Center,double);
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vtkGetVector3Macro(Center,double);
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//@}
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//@{
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/**
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* Set/Get the axis of the cylinder. If the axis is not specified as
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* a unit vector, it will be normalized. If zero-length axis vector
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* is used as input to this method, it will be ignored.
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*/
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void SetAxis(double ax, double ay, double az);
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void SetAxis(double a[3]);
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vtkGetVector3Macro(Axis,double);
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//@}
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protected:
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vtkCylinder();
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~vtkCylinder() VTK_OVERRIDE {}
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double Radius;
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double Center[3];
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double Axis[3];
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private:
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vtkCylinder(const vtkCylinder&) VTK_DELETE_FUNCTION;
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void operator=(const vtkCylinder&) VTK_DELETE_FUNCTION;
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};
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#endif
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