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99 lines
3.4 KiB
99 lines
3.4 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkWarpScalar.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 vtkWarpScalar - deform geometry with scalar data
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// .SECTION Description
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// vtkWarpScalar is a filter that modifies point coordinates by moving
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// points along point normals by the scalar amount times the scale factor.
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// Useful for creating carpet or x-y-z plots.
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//
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// If normals are not present in data, the Normal instance variable will
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// be used as the direction along which to warp the geometry. If normals are
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// present but you would like to use the Normal instance variable, set the
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// UseNormal boolean to true.
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//
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// If XYPlane boolean is set true, then the z-value is considered to be
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// a scalar value (still scaled by scale factor), and the displacement is
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// along the z-axis. If scalars are also present, these are copied through
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// and can be used to color the surface.
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//
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// Note that the filter passes both its point data and cell data to
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// its output, except for normals, since these are distorted by the
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// warping.
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#ifndef __vtkWarpScalar_h
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#define __vtkWarpScalar_h
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#include "vtkPointSetAlgorithm.h"
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class vtkDataArray;
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class VTK_GRAPHICS_EXPORT vtkWarpScalar : public vtkPointSetAlgorithm
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{
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public:
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static vtkWarpScalar *New();
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vtkTypeRevisionMacro(vtkWarpScalar,vtkPointSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Specify value to scale displacement.
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vtkSetMacro(ScaleFactor,double);
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vtkGetMacro(ScaleFactor,double);
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// Description:
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// Turn on/off use of user specified normal. If on, data normals
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// will be ignored and instance variable Normal will be used instead.
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vtkSetMacro(UseNormal,int);
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vtkGetMacro(UseNormal,int);
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vtkBooleanMacro(UseNormal,int);
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// Description:
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// Normal (i.e., direction) along which to warp geometry. Only used
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// if UseNormal boolean set to true or no normals available in data.
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vtkSetVector3Macro(Normal,double);
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vtkGetVectorMacro(Normal,double,3);
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// Description:
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// Turn on/off flag specifying that input data is x-y plane. If x-y plane,
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// then the z value is used to warp the surface in the z-axis direction
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// (times the scale factor) and scalars are used to color the surface.
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vtkSetMacro(XYPlane,int);
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vtkGetMacro(XYPlane,int);
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vtkBooleanMacro(XYPlane,int);
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protected:
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vtkWarpScalar();
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~vtkWarpScalar();
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int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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double ScaleFactor;
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int UseNormal;
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double Normal[3];
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int XYPlane;
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//BTX
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double *(vtkWarpScalar::*PointNormal)(vtkIdType id, vtkDataArray *normals);
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double *DataNormal(vtkIdType id, vtkDataArray *normals=NULL);
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double *InstanceNormal(vtkIdType id, vtkDataArray *normals=NULL);
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double *ZNormal(vtkIdType id, vtkDataArray *normals=NULL);
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//ETX
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private:
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vtkWarpScalar(const vtkWarpScalar&); // Not implemented.
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void operator=(const vtkWarpScalar&); // Not implemented.
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};
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#endif
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