gen matrix point-surface
gen matrix point-surface generates a matrix that describes the
flux-transport behavior between a grid of sensor and a surface,
e.g., the view-matrix in a three-phase simulation.
Options
-b/--basis- Surface basis (default: kf)
-f/--offset- Offset surface in its normal direction (default: 0)
All rtrace options are recognized as well.
Example
Generate a point to surface matrix (e.g., view matrix)