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/*=========================================================================
Program: Visualization Toolkit
Module: vtkQuadRotationalExtrusionFilter.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkQuadRotationalExtrusionFilter
* @brief sweep polygonal data creating "skirt" from free edges and lines, and lines from vertices
*
* vtkQuadRotationalExtrusionFilter is a modeling filter. It takes polygonal
* data as input and generates polygonal data on output. The input dataset
* is swept around the z-axis to create new polygonal primitives. These
* primitives form a "skirt" or swept surface. For example, sweeping a
* line results in a cylindrical shell, and sweeping a circle creates a
* torus.
*
* There are a number of control parameters for this filter. You can
* control whether the sweep of a 2D object (i.e., polygon or triangle
* strip) is capped with the generating geometry via the "Capping" instance
* variable. Also, you can control the angle of rotation, and whether
* translation along the z-axis is performed along with the rotation.
* (Translation is useful for creating "springs".) You also can adjust
* the radius of the generating geometry using the "DeltaRotation" instance
* variable.
*
* The skirt is generated by locating certain topological features. Free
* edges (edges of polygons or triangle strips only used by one polygon or
* triangle strips) generate surfaces. This is true also of lines or
* polylines. Vertices generate lines.
*
* This filter can be used to model axisymmetric objects like cylinders,
* bottles, and wine glasses; or translational/rotational symmetric objects
* like springs or corkscrews.
*
* @warning
* If the object sweeps 360 degrees, radius does not vary, and the object
* does not translate, capping is not performed. This is because the cap
* is unnecessary.
*
* @warning
* Some polygonal objects have no free edges (e.g., sphere). When swept,
* this will result in two separate surfaces if capping is on, or no surface
* if capping is off.
*
* @sa
* vtkLinearExtrusionFilter vtkRotationalExtrusionFilter
*
* @par Thanks:
* This class was initially developed by Daniel Aguilera, CEA/DIF
* Ported and modified by Philippe Pebay, Kitware, 2011
*/
#ifndef vtkQuadRotationalExtrusionFilter_h
#define vtkQuadRotationalExtrusionFilter_h
#include "vtkFiltersModelingModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"
#include <map> // STL vector need for per block angles
class vtkPoints;
class vtkPointData;
class VTKFILTERSMODELING_EXPORT vtkQuadRotationalExtrusionFilter : public vtkMultiBlockDataSetAlgorithm
{
public:
vtkTypeMacro(vtkQuadRotationalExtrusionFilter,vtkMultiBlockDataSetAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
/**
* Create object with capping on, angle of 360 degrees, resolution = 12, and
* no translation along z-axis.
* vector (0,0,1), and point (0,0,0).
*/
static vtkQuadRotationalExtrusionFilter *New();
enum RotationAxis
{
USE_X = 0,
USE_Y = 1,
USE_Z = 2
};
//@{
/**
* Set the axis of rotation to use. It is set by default to Z.
*/
vtkSetClampMacro(Axis, int, 0, 2);
vtkGetMacro(Axis, int);
void SetAxisToX() { this->SetAxis(USE_X); };
void SetAxisToY() { this->SetAxis(USE_Y); };
void SetAxisToZ() { this->SetAxis(USE_Z); };
//@}
//@{
/**
* Set/Get resolution of sweep operation. Resolution controls the number
* of intermediate node points.
*/
vtkSetClampMacro(Resolution,int,1,VTK_INT_MAX);
vtkGetMacro(Resolution,int);
//@}
//@{
/**
* Turn on/off the capping of the skirt.
*/
vtkSetMacro(Capping,int);
vtkGetMacro(Capping,int);
vtkBooleanMacro(Capping,int);
//@}
//@{
/**
* Set/Get angle of rotation.
*/
vtkSetMacro(DefaultAngle,double);
vtkGetMacro(DefaultAngle,double);
//@}
//@{
/**
* Set/Get angles of rotation for each block in a composite data set.
*/
void RemoveAllPerBlockAngles();
void AddPerBlockAngle(vtkIdType blockId, double angle);
//@}
//@{
/**
* Set/Get total amount of translation along the z-axis.
*/
vtkSetMacro(Translation,double);
vtkGetMacro(Translation,double);
//@}
//@{
/**
* Set/Get change in radius during sweep process.
*/
vtkSetMacro(DeltaRadius,double);
vtkGetMacro(DeltaRadius,double);
//@}
protected:
vtkQuadRotationalExtrusionFilter();
~vtkQuadRotationalExtrusionFilter() {}
int FillInputPortInformation( int , vtkInformation* );
int RequestData( vtkInformation*,
vtkInformationVector**,
vtkInformationVector* );
int RotateAroundAxis( double,
vtkIdType,
vtkPoints*,
vtkPoints*,
vtkPointData*,
vtkPointData* );
int Axis;
int Resolution;
int Capping;
double DefaultAngle;
double Translation;
double DeltaRadius;
std::map<vtkIdType,double> PerBlockAngles;
private:
vtkQuadRotationalExtrusionFilter(const vtkQuadRotationalExtrusionFilter&) VTK_DELETE_FUNCTION;
void operator=(const vtkQuadRotationalExtrusionFilter&) VTK_DELETE_FUNCTION;
};
#endif
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