In this paper, COVID-19 cases in different regions are used for comparison. The related genomes of SARS-CoV-2 are segmented and replaced with sequence operations under protein coding scheme on the A3 module of the MAS. Using protein coding schemes, genomes are transformed and projected as measuring sequences as a vector that can be visualized in maps from two different perspectives: the elements of the gene sequence and the position of the element sequence, so as to interpret the genome more comprehensively. Through a series of linear diagrams, it is convenient to compare and analyze the genomes of the samples collected in different regions more intuitively, which may be conducive to further data mining of genomic information and refined explorations of COVID-19 for patients.