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84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkGeoRandomGraphSource.cxx
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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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Copyright 2008 Sandia Corporation.
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Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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the U.S. Government retains certain rights in this software.
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-------------------------------------------------------------------------*/
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#include "vtkGeoRandomGraphSource.h"
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#include "vtkDataSetAttributes.h"
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#include "vtkDoubleArray.h"
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#include "vtkGraph.h"
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#include "vtkInformation.h"
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#include "vtkMath.h"
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#include "vtkObjectFactory.h"
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#include "vtkPoints.h"
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vtkStandardNewMacro(vtkGeoRandomGraphSource);
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// ----------------------------------------------------------------------
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vtkGeoRandomGraphSource::vtkGeoRandomGraphSource()
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{
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}
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// ----------------------------------------------------------------------
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vtkGeoRandomGraphSource::~vtkGeoRandomGraphSource()
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{
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}
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// ----------------------------------------------------------------------
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void vtkGeoRandomGraphSource::PrintSelf(ostream& os, vtkIndent indent)
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{
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this->Superclass::PrintSelf(os, indent);
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}
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// ----------------------------------------------------------------------
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int vtkGeoRandomGraphSource::RequestData(
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vtkInformation* info,
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vtkInformationVector** inputVector,
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vtkInformationVector* outputVector)
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{
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vtkRandomGraphSource::RequestData(info, inputVector, outputVector);
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// Set random lat/long points into the output
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vtkGraph* output = vtkGraph::GetData(outputVector);
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vtkDoubleArray* latArr = vtkDoubleArray::New();
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vtkDoubleArray* lonArr = vtkDoubleArray::New();
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latArr->SetNumberOfTuples(output->GetNumberOfVertices());
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lonArr->SetNumberOfTuples(output->GetNumberOfVertices());
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latArr->SetName("latitude");
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lonArr->SetName("longitude");
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for (vtkIdType v = 0; v < output->GetNumberOfVertices(); ++v)
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{
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double lat = vtkMath::Random()*180.0 - 90.0;
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double lon = vtkMath::Random()*360.0 - 180.0;
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latArr->SetValue(v, lat);
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lonArr->SetValue(v, lon);
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}
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output->GetVertexData()->AddArray(latArr);
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output->GetVertexData()->AddArray(lonArr);
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latArr->Delete();
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lonArr->Delete();
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return 1;
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}
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