Option compatibility and validation

pycopm validates input formats and rejects incompatible workflows before processing the model.

The implementation validates the following combinations before processing a deck:

• Use either uniform -c or directional -x, -y, and -z coarsening.

• Use either uniform -g or directional -rx, -ry, and -rz refinement.

• Coarsening and refinement are mutually exclusive.

• -v cannot be combined with -d, refinement, or -q 1.

• -d cannot be combined with refinement.

• Non-default -a and -n, and any -s, -t, -j, or -dual, require coarsening.

• -p 1 requires coarsening or submodel extraction. -p 2, -p 3, and -p 4 require submodel extraction.

• Multiple aggregation methods require range-based -z coarsening and one method per z group.

• An xypolygon must have at least four points and repeat its first point at the end.

• Scale factors cannot be zero, jump thresholds must be positive, and requested i,j,k indices must be positive.