About region-ping intersections

A Region-ping intersection, RP, is that part of a 3D region R which intersects with a ping, P (in both space and time). The diagrams below show a 3D region and multibeam ping (in a scene) and the original ping with an intersecting region (in a multibeam echogram). The region-ping intersection is visible on a multibeam echogram as a black border enclosing an area crosshatched in the color of an analysis region. The cross hatching is twice as dense if the region is selected.

Figure 1. Ping (P) and Region (R) in a Scene

Figure 2. Region-ping intersection (RP) in a multibeam echogram

See also

About intersections
About region-cell intersections
About surface-ping intersections