For a tutorial showing plotting of layer-based Plus-Minus refractors on WET tomogram see

http://rayfract.com/samples/jenny13.pdf

. We include a download link for the input data files

http://rayfract.com/samples/jenny13.zip

. Vary mapping of traces to refractors in Refractors|Shot breaks until Plus-Minus interpretation matches Smooth inversion tomogram, with 1D-gradient starting model. See also

http://rayfract.com/help/release_notes.pdf

for latest version 3.25, on first page.

For above jenny13.pdf we used offset shots no. 1 and no. 7 for Plus-Minus interpretation.

These shots cannot be used for 2D WET inversion, since there are no receivers near these shot points, at station no. -5.5 and 30.5 .

Use overlapping receiver spreads, see

http://rayfract.com/help/overlap.pdf

for our WET inversion to be able to use profile-internal offset shots.