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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCirclePackToPolyData.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 "vtkCirclePackToPolyData.h"
#include "vtkCellArray.h"
#include "vtkCellData.h"
#include "vtkCommand.h"
#include "vtkFloatArray.h"
#include "vtkMath.h"
#include "vtkIdTypeArray.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkPointData.h"
#include "vtkTimerLog.h"
#include "vtkTree.h"
#include "vtkStripper.h"
#include "vtkSectorSource.h"
#include "vtkAppendPolyData.h"
#include "vtkSmartPointer.h"
#define VTK_CREATE(type, name) \
vtkSmartPointer<type> name = vtkSmartPointer<type>::New()
vtkStandardNewMacro(vtkCirclePackToPolyData);
vtkCirclePackToPolyData::vtkCirclePackToPolyData()
{
this->SetCirclesArrayName("circles");
this->Resolution = 100;
}
vtkCirclePackToPolyData::~vtkCirclePackToPolyData()
{
}
int vtkCirclePackToPolyData::FillInputPortInformation(int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkTree");
return 1;
}
int vtkCirclePackToPolyData::RequestData(
vtkInformation *vtkNotUsed(request),
vtkInformationVector **inputVector,
vtkInformationVector *outputVector)
{
// get the info objects
vtkInformation *inInfo = inputVector[0]->GetInformationObject(0);
vtkInformation *outInfo = outputVector->GetInformationObject(0);
// get the input and output
vtkTree *inputTree = vtkTree::SafeDownCast(
inInfo->Get(vtkDataObject::DATA_OBJECT()));
vtkPolyData *outputPoly = vtkPolyData::SafeDownCast(
outInfo->Get(vtkDataObject::DATA_OBJECT()));
if( inputTree->GetNumberOfVertices() == 0 )
{
return 1;
}
vtkDataArray* circlesArray = this->GetInputArrayToProcess(0, inputTree);
if (!circlesArray)
{
vtkErrorMacro("Circles array not found.");
return 0;
}
double progress = 0.0;
this->InvokeEvent(vtkCommand::ProgressEvent, &progress);
VTK_CREATE(vtkAppendPolyData, appendFilter);
for( int i = 0; i < inputTree->GetNumberOfVertices(); i++ )
{
// Grab coords from the input
double circle[3];
circlesArray->GetTuple(i,circle);
VTK_CREATE(vtkPolyData, circlePData);
this->CreateCircle(circle[0],
circle[1],
0.0,
circle[2],
this->Resolution,
circlePData);
appendFilter->AddInputData(circlePData);
if ( i%1000 == 0 )
{
progress = static_cast<double>(i) / inputTree->GetNumberOfVertices() * 0.8;
this->InvokeEvent(vtkCommand::ProgressEvent, &progress);
}
}
appendFilter->Update();
outputPoly->ShallowCopy(appendFilter->GetOutput());
// Pass the input vertex data to the output cell data :)
vtkDataSetAttributes* const input_vertex_data = inputTree->GetVertexData();
vtkDataSetAttributes* const output_cell_data = outputPoly->GetCellData();
output_cell_data->PassData(input_vertex_data);
return 1;
}
void vtkCirclePackToPolyData::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
os << indent << "Resolution: " << this->Resolution << endl;
}
void vtkCirclePackToPolyData::CreateCircle(const double& x,
const double& y,
const double& z,
const double& radius,
const int& resolution,
vtkPolyData* polyData)
{
vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
vtkSmartPointer<vtkCellArray> cells = vtkSmartPointer<vtkCellArray>::New();
points->SetNumberOfPoints( resolution );
cells->Allocate( 1, resolution );
cells->InsertNextCell( resolution );
for( int i = 0 ; i < resolution; ++i )
{
double theta = vtkMath::RadiansFromDegrees(360.*i/double(resolution));
double xp = x + radius*cos(theta);
double yp = y + radius*sin(theta);
points->SetPoint( i, xp, yp, z );
cells->InsertCellPoint( i );
}
polyData->Initialize();
polyData->SetPolys( cells );
polyData->SetPoints( points );
}
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