public static double CalculateVolumeFromStl(string fileName)
{
vtkSTLReader reader = vtkSTLReader.New();
reader.SetFileName(fileName);
vtkMassProperties property = vtkMassProperties.New();
property.SetInputConnection(reader.GetOutputPort());
property.Update();
double volume = property.GetVolume();
property.Dispose();
reader.Dispose();
return(volume);
}
/// <summary>
/// Return a list of 3 values, respectively: Volume, Surface and compactness
/// </summary>
/// <returns></returns>
private double[] ComputeVolSurfComp()
{
vtkTriangleFilter TriangleFilter = vtkTriangleFilter.New();
TriangleFilter.SetInputConnection(ContourObject);
vtkMassProperties MassProperties = new vtkMassProperties();
MassProperties.SetInputConnection(TriangleFilter.GetOutputPort());
double Volume = MassProperties.GetVolume();
double Surface = MassProperties.GetSurfaceArea();
double Compactness = MassProperties.GetNormalizedShapeIndex();
double[] Res = new double[3];
Res[0] = Volume;
Res[1] = Surface;
Res[2] = Compactness;
return Res;
}
private double ComputeHullRatio(double ObjectVolume)
{
vtkTriangleFilter TriangleFilter = vtkTriangleFilter.New();
TriangleFilter.SetInputConnection(hullFilter.GetOutputPort());
vtkMassProperties MassProperties = new vtkMassProperties();
MassProperties.SetInputConnection(TriangleFilter.GetOutputPort());
return MassProperties.GetVolume() / ObjectVolume;
}