I have a hexrahedron mesh contains some distorted elements, I am finding that such elements being 10% of mesh data are distorted and having negative jacobians.
How can I use form integration in dolfinx, to exclude the distorted elements?
The question seems to me to tackle the problem the other way around. The issue is that you have elements with negative jacobian, hence your mesh is invalid. You should fix your mesh in the first place, rather than hoping to somehow exclude them.