Model with LENticular inclusion: 3-D boundary-value ray tracing by two-parametric shooting. Date: 1998, October 12 Written by Ludek Klimes Two-point ray tracing for the point source: 'len-crt.h'... History file running 'crt.for' to trace the two-point rays of the refracted P wave and then rewriting the resulting travel times at the given receivers by means of program 'crtpts.for' into formatted file 'len-rec.out'. Input data files: 'len-crt.dat', 'model.dat', 'dcrt.dat', 'init.dat', 'len-src.dat', 'code1.dat ', 'len-rpa.dat', 'len-rec.dat', 'writ.dat', and data for plotting. 'len-crt.dat'... Sample main input data for the CRT program. This data file refers, among others, sample data file 'model.dat' of the MODEL specification package, which has therefore to be located in the current directory. 'len-rpa.dat'... Data controlling two-point ray tracing to given receivers. 'len-rec.dat'... Names and coordinates of the receivers. 'len-rp2.dat', 'len-rp4.dat', 'len-rp5.dat', 'len-rp6.dat', 'len-rp7.dat', 'color.dat', 'symbol.dat', 'symbol7.dat'... Data to to create PostScript figures displaying the distribution of the rays and homogeneous triangles in the normalized ray domain and on the reference surface. Boundary-value rays corresponding to the plane wave incident at the bottom of the model: 'lenb-crt.h'... History file running 'crt.for' to trace the two-point rays of the refracted P wave and then rewriting the resulting travel times at the given receivers by means of program 'crtpts.for' into formatted output file 'lenb-rec.out'. Input data files: 'lenb-crt.dat', 'model.dat', 'dcrt.dat', 'code1.dat ', 'writ.dat', 'len-rec.dat'. 'lenb-crt.dat'... Sample input data for the plane wave incident at the model bottom at 45 degrees. This data file refers 'model.dat' of the MODEL package, 'dcrt.dat', 'code1.dat', 'writ.dat' and 'len-rec.dat'. Zero-offset boundary-value rays (exploding reflector): 'lenz-crt.h'... History file running 'crt.for' to trace the two-point rays of the refracted P wave and then rewriting the resulting travel times at the given receivers by means of program 'crtpts.for' into formatted output file 'lenz-rec.out'. Input data files: 'lenz-crt.dat', 'model.dat', 'dcrt.dat', 'code1.dat ', 'len-rec.dat', 'writ.dat'. 'lenz-crt.dat'... Sample input data for the initial conditions for rays corresponding to exploding reflector. This data file refers 'model.dat' of the MODEL package, 'dcrt.dat', 'code1.dat', 'writ.dat' and 'len-rec.dat'. Controlled initial-value ray tracing for the point source followed by travel-time interpolation into a given grid of points: 'leni-mtt.h'... History file running 'crt.for' to trace the rays of the refracted P wave, then running program MTT interpolating Multivalued Travel Times inside ray cells, program MGRD converting file with multivalued travel times into several files with singlevalued travel times, and program GRDPS plotting the numbers and values of the calculated travel times. 'leni-crt.dat'... Main input data for the CRT program. This data file refers, among others, sample data file 'model.dat' of the MODEL specification package, which has therefore to be located in the current directory. 'leni-rpa.dat'... Data controlling initial-value ray tracing.