This repository defines a ParaView filter that builds a structure tensor from nodes around a cell center within a sphere. This structure tensors might help to identify the geometric configuration. If the sphere is completely filled, the result tends an isotropic state. If the geometry is plate-like, the result tends toward a transversal isotropic state. If the geometry is almost one-dimensional, it tends toward a unidirectional state.
The plugin requires Paraview 5.8 or higher.
Load the plugin to Paraview via 'Tools' -> 'Manage Plugins...' -> 'Load New'.
Load a .vtk file with cells to ParaView. Execute 'Filters' -> 'Structure Tensor' and select the cells. Click 'Apply' to start the plugin and 'Reload Python Module' to update the filter to changes in the code.