Prepare an input file to run strategy that looks like:
XFILE trig1_3_001.x NFRAME 26 SPACE GROUP P3121 FORMAT MARBIG COMPLETENESS 98 95 90 87 85 NBINS 10 PSFILE trig1_3.ps
Run the program on a UNIX machine like:
strategy < strategy.inp > strategy.log
The program produces, apart from the log file, a Postscript file containing coloured figures of the needed oscillation range for each possible starting angle.