vtkVisItInterpolatedVelocityField.h 3.54 KB
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/*****************************************************************************
*
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* Copyright (c) 2000 - 2013, 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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* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
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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
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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
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*****************************************************************************/

#ifndef VTK_VISIT_INTERPOLATED_VELOCITY_FIELD
#define VTK_VISIT_INTERPOLATED_VELOCITY_FIELD

#include <vtkObject.h>
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#include <visit_vtk_exports.h>
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class vtkDataSet;
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class vtkVisItCellLocator;
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class VISIT_VTK_API vtkVisItInterpolatedVelocityField  : public vtkObject
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{
  public:
  vtkTypeMacro(vtkVisItInterpolatedVelocityField,vtkObject);
                  vtkVisItInterpolatedVelocityField();
    virtual      ~vtkVisItInterpolatedVelocityField();

    static vtkVisItInterpolatedVelocityField *New();
    void          SetDataSet(vtkDataSet *ds);
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    void          SetLocator(vtkVisItCellLocator *loc);
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    bool          Evaluate(double *pt, double *vel, double t = 0.);
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    void          SetDoPathlines(bool b) { doPathlines = b; };
    void          SetCurrentTime(double t) { curTime = t; };
    void          SetNextTime(double t) { nextTime = t; };
    void          SetNextTimeName(const std::string &s) { nextTimeName = s; };

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    vtkDataSet   *GetDataSet(void) { return ds; };
    double       *GetLastWeights(void) { return weights; };
    int           GetLastCell(void) { return lastCell; };
    double       *GetLastPCoords(void) { return pcoords; };

  private:
    vtkDataSet  *ds;
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    vtkVisItCellLocator *locator;
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    double       weights[1024];
    int          lastCell;
    double       pcoords[3];
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    bool         doPathlines;
    std::string  nextTimeName;
    double       curTime;
    double       nextTime;
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};

#endif