Hi all,

I’m working on a vtkPolyData file and I’m interested to write a formula based on some of the existing data arrays by using Calculator filter. One of the components of my formula is a vector (I’m pretty sure it is a vector and you could check it out in my file attached here) and the other one is the scalar. Let’s say the: “tangentialprojectiontraction_average” is a vector and “shearstress_average” is a scalar and I’m interested to calculate a new quantity of OSI as: OSI = “0.5*(1-((mag(tangentialprojectiontraction_average))/(shearstress_average)))”. But the ParaView version 5.6.0 downloaded from your official website as a pre-built binary complains that “tangentialprojectiontraction_average” is not a vector so I can’t apply mag operator on it despite the fact that indeed it is a vector for 100% sure. Any idea how to fix it? I attached my file here to reproduce this error. Thanks! Link to download the file: https://drive.google.com/file/d/1x5ojmzrPcSFtdtlJZ34qOHo7lSN0h8ao/view?usp=sharing