Files
ThirdParty-6/ParaView-5.0.1/VTK/Geovis/Core/vtkGeoRandomGraphSource.cxx

84 lines
2.6 KiB
C++

/*=========================================================================
Program: Visualization Toolkit
Module: vtkGeoRandomGraphSource.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkGeoRandomGraphSource.h"
#include "vtkDataSetAttributes.h"
#include "vtkDoubleArray.h"
#include "vtkGraph.h"
#include "vtkInformation.h"
#include "vtkMath.h"
#include "vtkObjectFactory.h"
#include "vtkPoints.h"
vtkStandardNewMacro(vtkGeoRandomGraphSource);
// ----------------------------------------------------------------------
vtkGeoRandomGraphSource::vtkGeoRandomGraphSource()
{
}
// ----------------------------------------------------------------------
vtkGeoRandomGraphSource::~vtkGeoRandomGraphSource()
{
}
// ----------------------------------------------------------------------
void vtkGeoRandomGraphSource::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
// ----------------------------------------------------------------------
int vtkGeoRandomGraphSource::RequestData(
vtkInformation* info,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkRandomGraphSource::RequestData(info, inputVector, outputVector);
// Set random lat/long points into the output
vtkGraph* output = vtkGraph::GetData(outputVector);
vtkDoubleArray* latArr = vtkDoubleArray::New();
vtkDoubleArray* lonArr = vtkDoubleArray::New();
latArr->SetNumberOfTuples(output->GetNumberOfVertices());
lonArr->SetNumberOfTuples(output->GetNumberOfVertices());
latArr->SetName("latitude");
lonArr->SetName("longitude");
for (vtkIdType v = 0; v < output->GetNumberOfVertices(); ++v)
{
double lat = vtkMath::Random()*180.0 - 90.0;
double lon = vtkMath::Random()*360.0 - 180.0;
latArr->SetValue(v, lat);
lonArr->SetValue(v, lon);
}
output->GetVertexData()->AddArray(latArr);
output->GetVertexData()->AddArray(lonArr);
latArr->Delete();
lonArr->Delete();
return 1;
}