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Open turns integration

This adds two filter to VTK, vtkOTKernelSmoothing and vtkOTDensityMap. Both these filters are based on OpenTurns lib to compute statistical Data.

  • KernelSmoothing is a filter to compute Kernal Smoothing using PDF computation from openturns.
  • DensityMap is a VTK Filter to compute density map on any pair of numeric data arrays with the same number of tuples, using OpenTURNS. The Output will be a MultiBlock of table, each table containing X and Y coordinate of a density map line.

This also add a option to ScatterPlotMatrix to show a density map in the big plot, computed using vtkOTDensityMap

An example of DensityMap : 2017-02-17-182648_1079x1056_scrot AAA BBB An example of Kernel Smoothing : CCC

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