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This example makes a ray plot and creates a listing. You should remove old versions of the listing files (at present the program will not write over old files with the same name). The first part of the filenames for the listings comes from Record 10 of param1 - demo6 here. Demo6listing is meant to be a readable file. Demo6data is for input to another program - an x-t type plotting program still to come. Note how two shots were specified in file geometry2. Note also that it was not possible to reproduce exactly Example 6 from the old cshot documentation. There are two differences. First the shots and receivers are tied to station locations in the new geometry specification (i.e. in the geometry file). In the original version of cshot the shot moveup was arbitrary and shots did not have to be at station locations. The second difference is that cshot1 requires a minimum of 4 receivers to be specified per shot. This is necessary in order to describe a spread with a gap.