VtkCompositeFilter.cpp

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// ** INCLUDES **
#include "VtkCompositeFilter.h"
 
#include <vtkAlgorithm.h>
#include <vtkPolyData.h>
 
#include <QMapIterator>
#include <QString>
#include <QVector>
 
VtkCompositeFilter::VtkCompositeFilter(vtkAlgorithm* inputAlgorithm)
    : _inputDataObjectType(0),
      _outputDataObjectType(1),
      _inputAlgorithm(inputAlgorithm),
      _outputAlgorithm(nullptr)
{
}
 
VtkCompositeFilter::~VtkCompositeFilter()
{
    _outputAlgorithm->Delete();
}
 
double VtkCompositeFilter::GetInitialRadius() const
{
    double bounding_box[6];
    static_cast<vtkPolyData*>(this->_inputAlgorithm->GetOutputDataObject(0))
        ->GetBounds(bounding_box);
    double x_diff = fabs(bounding_box[0] - bounding_box[1]);
    double y_diff = fabs(bounding_box[2] - bounding_box[3]);
    double z_diff = fabs(bounding_box[4] - bounding_box[5]);
 
    double max = (x_diff == 0) ? 1 : x_diff;
    max = (max > y_diff) ? max : y_diff;
    max = (max > z_diff) ? max : z_diff;
 
    return max / 200.0;
}