How is the sitting direction and orientation of the tomb calculated?

The sitting posture and orientation of the tomb can only be calculated with a compass. Well, it usually faces south, just like that house. Yes, but graves are not advocated now. They are usually cremated and then buried in the urn in the crematorium. Well, some of them may be buried in the countryside now, so cremation is not recommended. If you ask this question, find out whether the local civil affairs bureau needs to be buried before writing. You can search it.