vtkLineoutFilter.h 4.29 KB
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/*****************************************************************************
*
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* Copyright (c) 2000 - 2012, Lawrence Livermore National Security, LLC
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* Produced at the Lawrence Livermore National Laboratory
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* LLNL-CODE-442911
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* All rights reserved.
*
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* This file is  part of VisIt. For  details, see https://visit.llnl.gov/.  The
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* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* Redistribution  and  use  in  source  and  binary  forms,  with  or  without
* modification, are permitted provided that the following conditions are met:
*
*  - Redistributions of  source code must  retain the above  copyright notice,
*    this list of conditions and the disclaimer below.
*  - Redistributions in binary form must reproduce the above copyright notice,
*    this  list of  conditions  and  the  disclaimer (as noted below)  in  the
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*    documentation and/or other materials provided with the distribution.
*  - Neither the name of  the LLNS/LLNL nor the names of  its contributors may
*    be used to endorse or promote products derived from this software without
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*    specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR  IMPLIED WARRANTIES, INCLUDING,  BUT NOT  LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND  FITNESS FOR A PARTICULAR  PURPOSE
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* ARE  DISCLAIMED. IN  NO EVENT  SHALL LAWRENCE  LIVERMORE NATIONAL  SECURITY,
* LLC, THE  U.S.  DEPARTMENT OF  ENERGY  OR  CONTRIBUTORS BE  LIABLE  FOR  ANY
* DIRECT,  INDIRECT,   INCIDENTAL,   SPECIAL,   EXEMPLARY,  OR   CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT  LIMITED TO, PROCUREMENT OF  SUBSTITUTE GOODS OR
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//=========================================================================
// .NAME vtkLineoutFilter - 
// .SECTION Description
// vtkLineoutFilter is a filter object that applies a probe filter to
// the input.  The probe filter output is transformed into x-y pairs
// (vertices), with x representing the distance along the probe-line
// and y the interpolated scalar value at that point. 
//
// Points determined as 'invalid' by the probe filter
// are not included in the output.
//
//

#ifndef __vtkLineoutFilter_h
#define __vtkLineoutFilter_h
#include <visit_vtk_exports.h>

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#include <vtkPolyDataAlgorithm.h>

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class vtkCellDataToPointData;
class vtkLineSource;
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class vtkVisItProbeFilter;
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// ***************************************************************************
//  Class: vtkLineoutFilter
//
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//  Modifications:
//    Kathleen Bonnell, Fri Mar 28 12:09:01 PDT 2008
//    Removed cd2pd, use VisIt version of vtkProbeFilter.
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//
//    Eric Brugger, Thu Jan 10 09:45:55 PST 2013
//    Modified to inherit from vtkPolyDataAlgorithm.
//
// ***************************************************************************

class VISIT_VTK_API vtkLineoutFilter : public vtkPolyDataAlgorithm
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{
public:
  static vtkLineoutFilter *New();
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  vtkTypeMacro(vtkLineoutFilter,vtkPolyDataAlgorithm);
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  void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Set/Get the endpoints of the line used for probing. 
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  vtkSetVector3Macro(Point1, double); 
  vtkGetVectorMacro(Point1, double, 3); 
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  vtkSetVector3Macro(Point2, double); 
  vtkGetVectorMacro(Point2, double, 3); 
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  vtkSetMacro(NumberOfSamplePoints, int);
  vtkGetMacro(NumberOfSamplePoints, int);

protected:
  vtkLineoutFilter();
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  ~vtkLineoutFilter();
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  vtkLineSource          *LineSource;
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  vtkVisItProbeFilter    *Probe;
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  virtual int RequestData(vtkInformation *,
                          vtkInformationVector **,
                          vtkInformationVector *);
  virtual int FillInputPortInformation(int port, vtkInformation *info);
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private:
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  double          Point1[3];
  double          Point2[3];
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  int             NumberOfSamplePoints;

  vtkLineoutFilter(const vtkLineoutFilter&);
  void operator=(const vtkLineoutFilter&);
};

#endif