Hi,

I’m trying to display local strain field in a deforming 3D mesh. My steps were as follows:

- Open .vtk files - Apply
- WrapByVector - Vectors: MeshDisplacement - Apply
- ComputeDerivatives - Settings as follows

And then I got this. I was wondering what those 0-8 options refer to. Is Strain0 eta_xx and Strain1 eta_xy? If so, I think it’s the result of global coordinates. Is there a way to compute the strain tensor in local coordinates (in the normal and tangent directions of each cell)?

Many Thanks,

Gening