96 lines
3.3 KiB
C
96 lines
3.3 KiB
C
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkStreamSurface.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 vtkStreamSurface
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* @brief Advect a stream surface in a vector field
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*
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* vtkStreamSurface is a surface streamer that generates a surface using the vectors in the input.
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* Depending on the UseIterativeSeeding parameter, the simple or iterative version is called.
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* The iterative version produces better surfaces, but takes longer.
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*
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* @par Thanks:
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* Developed by Roxana Bujack and Karen Tsai at Los Alamos National Laboratory under LDRD 20190143ER
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*/
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#ifndef vtkStreamSurface_h
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#define vtkStreamSurface_h
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#include "vtkFiltersFlowPathsModule.h" // For export macro
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#include "vtkStreamTracer.h"
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class vtkAppendPolyData;
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class vtkRuledSurfaceFilter;
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class VTKFILTERSFLOWPATHS_EXPORT vtkStreamSurface : public vtkStreamTracer
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{
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public:
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static vtkStreamSurface* New();
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vtkTypeMacro(vtkStreamSurface, vtkStreamTracer);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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///@{
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/**
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* Specify/determine if the simple (fast) or iterative (correct) version is called.
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*/
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vtkSetMacro(UseIterativeSeeding, bool);
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vtkGetMacro(UseIterativeSeeding, bool);
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vtkBooleanMacro(UseIterativeSeeding, bool);
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///@}
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protected:
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vtkStreamSurface();
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~vtkStreamSurface() override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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private:
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vtkStreamSurface(const vtkStreamSurface&) = delete;
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void operator=(const vtkStreamSurface&) = delete;
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/**
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* first advect all point in seeds and then connect the resulting streamlines to a surface
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* field is the vector values dataset in which the streamsurface is advected
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* seeds is the polydata with the start curve
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* output is the final streamsurface
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* @return 1 if successful, 0 if empty
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*/
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int AdvectSimple(vtkDataObject* field, vtkPolyData* seeds, vtkPolyData* output);
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/**
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* loop: 1.advect one step at a time
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* 2. then form surface strip and add it to existing surface
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* 3. then check if points have diverged and insert new ones if necessary
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* field is the vecotr values dataset in which the streamsurface is advected
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* seeds is the polydata with the start curve
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* output is the final streamsurface
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* @param field: vector field in which the surfave is advected
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* @param seeds: initial values
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* @param integrationDirection: forward, backward, or both
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* @param output: the final surface
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* @return 1 if successful, 0 if not
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*/
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int AdvectIterative(
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vtkDataObject* field, vtkPolyData* seeds, int integrationDirection, vtkPolyData* output);
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/**
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* depending on this boolen the simple (fast) or iterative (correct) version is called
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*/
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bool UseIterativeSeeding = false;
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vtkNew<vtkRuledSurfaceFilter> RuledSurface;
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vtkNew<vtkStreamTracer> StreamTracer;
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vtkNew<vtkAppendPolyData> AppendSurfaces;
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};
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#endif
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