For alle de OrthoimageCoverage-instanser, som en aggregeret OrthoimageCoverage-instans refererer til, skal retningen for kvadratnettets akser og kvadratnetafstanden i hver retning være den samme.
All the OrthoimageCoverage instances, to which an aggregated OrthoimageCoverage instance refers, shall share the same orientation of grid axes and the same grid spacing in each direction.